/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bakery-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 16:00:45,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 16:00:45,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 16:00:45,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 16:00:45,954 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.epf [2022-03-15 16:00:45,978 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 16:00:45,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 16:00:45,979 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 16:00:45,979 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 16:00:45,980 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 16:00:45,980 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 16:00:45,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 16:00:45,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 16:00:45,980 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 16:00:45,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 16:00:45,981 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 16:00:45,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 16:00:45,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 16:00:45,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 16:00:45,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 16:00:45,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 16:00:45,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 16:00:45,982 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 16:00:45,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 16:00:45,982 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 16:00:45,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 16:00:45,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 16:00:45,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 16:00:45,982 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 16:00:45,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 16:00:45,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 16:00:45,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 16:00:45,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 16:00:45,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 16:00:45,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 16:00:45,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 16:00:45,983 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 16:00:45,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 16:00:45,983 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 16:00:46,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 16:00:46,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 16:00:46,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 16:00:46,215 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-15 16:00:46,216 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-15 16:00:46,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bakery-3.wvr.bpl [2022-03-15 16:00:46,218 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bakery-3.wvr.bpl' [2022-03-15 16:00:46,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 16:00:46,245 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-15 16:00:46,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 16:00:46,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 16:00:46,246 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 16:00:46,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:00:46" (1/1) ... [2022-03-15 16:00:46,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:00:46" (1/1) ... [2022-03-15 16:00:46,267 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-15 16:00:46,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 16:00:46,270 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 16:00:46,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 16:00:46,270 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 16:00:46,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:00:46" (1/1) ... [2022-03-15 16:00:46,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:00:46" (1/1) ... [2022-03-15 16:00:46,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:00:46" (1/1) ... [2022-03-15 16:00:46,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:00:46" (1/1) ... [2022-03-15 16:00:46,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:00:46" (1/1) ... [2022-03-15 16:00:46,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:00:46" (1/1) ... [2022-03-15 16:00:46,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:00:46" (1/1) ... [2022-03-15 16:00:46,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 16:00:46,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 16:00:46,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 16:00:46,298 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 16:00:46,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:00:46" (1/1) ... [2022-03-15 16:00:46,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 16:00:46,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 16:00:46,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 16:00:46,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 16:00:46,376 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-15 16:00:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 16:00:46,377 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 16:00:46,377 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-15 16:00:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 16:00:46,377 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 16:00:46,377 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-15 16:00:46,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 16:00:46,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 16:00:46,378 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-15 16:00:46,378 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 16:00:46,378 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 16:00:46,379 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 16:00:46,416 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 16:00:46,417 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 16:00:46,527 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 16:00:46,532 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 16:00:46,532 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 16:00:46,534 INFO L202 PluginConnector]: Adding new model bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 04:00:46 BoogieIcfgContainer [2022-03-15 16:00:46,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 16:00:46,535 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 16:00:46,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 16:00:46,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 16:00:46,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:00:46" (1/2) ... [2022-03-15 16:00:46,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63eb1f1d and model type bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 04:00:46, skipping insertion in model container [2022-03-15 16:00:46,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 04:00:46" (2/2) ... [2022-03-15 16:00:46,551 INFO L111 eAbstractionObserver]: Analyzing ICFG bakery-3.wvr.bpl [2022-03-15 16:00:46,555 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 16:00:46,556 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 16:00:46,556 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 16:00:46,556 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 16:00:46,594 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-15 16:00:46,657 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 16:00:46,663 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 16:00:46,663 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-15 16:00:46,673 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 53 transitions, 130 flow [2022-03-15 16:00:46,836 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3169 states, 3168 states have (on average 2.785037878787879) internal successors, (8823), 3168 states have internal predecessors, (8823), 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) [2022-03-15 16:00:46,847 INFO L276 IsEmpty]: Start isEmpty. Operand has 3169 states, 3168 states have (on average 2.785037878787879) internal successors, (8823), 3168 states have internal predecessors, (8823), 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) [2022-03-15 16:00:46,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:46,876 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:46,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:46,877 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:46,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:46,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1471808152, now seen corresponding path program 1 times [2022-03-15 16:00:46,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:46,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438790354] [2022-03-15 16:00:46,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:46,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:47,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:47,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:47,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:47,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438790354] [2022-03-15 16:00:47,229 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438790354] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:47,229 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:47,229 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 16:00:47,230 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059232239] [2022-03-15 16:00:47,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:47,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 16:00:47,234 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:47,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 16:00:47,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:00:47,278 INFO L87 Difference]: Start difference. First operand has 3169 states, 3168 states have (on average 2.785037878787879) internal successors, (8823), 3168 states have internal predecessors, (8823), 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 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:00:47,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:47,693 INFO L93 Difference]: Finished difference Result 4259 states and 11383 transitions. [2022-03-15 16:00:47,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 16:00:47,696 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:47,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:47,741 INFO L225 Difference]: With dead ends: 4259 [2022-03-15 16:00:47,741 INFO L226 Difference]: Without dead ends: 4067 [2022-03-15 16:00:47,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-03-15 16:00:47,748 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 223 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:47,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 737 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 16:00:47,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4067 states. [2022-03-15 16:00:47,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4067 to 3212. [2022-03-15 16:00:47,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3212 states, 3211 states have (on average 2.7710993459981315) internal successors, (8898), 3211 states have internal predecessors, (8898), 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) [2022-03-15 16:00:47,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3212 states to 3212 states and 8898 transitions. [2022-03-15 16:00:47,917 INFO L78 Accepts]: Start accepts. Automaton has 3212 states and 8898 transitions. Word has length 48 [2022-03-15 16:00:47,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:47,918 INFO L470 AbstractCegarLoop]: Abstraction has 3212 states and 8898 transitions. [2022-03-15 16:00:47,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:00:47,919 INFO L276 IsEmpty]: Start isEmpty. Operand 3212 states and 8898 transitions. [2022-03-15 16:00:47,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:47,929 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:47,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:47,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 16:00:47,930 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:47,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:47,933 INFO L85 PathProgramCache]: Analyzing trace with hash 315387816, now seen corresponding path program 2 times [2022-03-15 16:00:47,933 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:47,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253994781] [2022-03-15 16:00:47,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:47,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:47,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:48,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:48,190 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:48,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253994781] [2022-03-15 16:00:48,191 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253994781] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:48,191 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:48,191 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 16:00:48,191 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400292563] [2022-03-15 16:00:48,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:48,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 16:00:48,193 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:48,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 16:00:48,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:00:48,194 INFO L87 Difference]: Start difference. First operand 3212 states and 8898 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:00:48,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:48,581 INFO L93 Difference]: Finished difference Result 5269 states and 14643 transitions. [2022-03-15 16:00:48,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 16:00:48,582 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:48,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:48,636 INFO L225 Difference]: With dead ends: 5269 [2022-03-15 16:00:48,636 INFO L226 Difference]: Without dead ends: 5269 [2022-03-15 16:00:48,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-03-15 16:00:48,637 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 184 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:48,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 500 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 16:00:48,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5269 states. [2022-03-15 16:00:48,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5269 to 4180. [2022-03-15 16:00:48,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4180 states, 4179 states have (on average 2.7647762622636995) internal successors, (11554), 4179 states have internal predecessors, (11554), 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) [2022-03-15 16:00:48,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4180 states to 4180 states and 11554 transitions. [2022-03-15 16:00:48,799 INFO L78 Accepts]: Start accepts. Automaton has 4180 states and 11554 transitions. Word has length 48 [2022-03-15 16:00:48,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:48,800 INFO L470 AbstractCegarLoop]: Abstraction has 4180 states and 11554 transitions. [2022-03-15 16:00:48,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:00:48,801 INFO L276 IsEmpty]: Start isEmpty. Operand 4180 states and 11554 transitions. [2022-03-15 16:00:48,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:48,843 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:48,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:48,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 16:00:48,845 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:48,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:48,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1865950614, now seen corresponding path program 3 times [2022-03-15 16:00:48,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:48,847 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784140608] [2022-03-15 16:00:48,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:48,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:48,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:48,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:48,982 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:48,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784140608] [2022-03-15 16:00:48,982 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784140608] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:48,982 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:48,982 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 16:00:48,983 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824890725] [2022-03-15 16:00:48,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:48,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 16:00:48,983 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:48,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 16:00:48,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:00:48,984 INFO L87 Difference]: Start difference. First operand 4180 states and 11554 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:00:49,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:49,172 INFO L93 Difference]: Finished difference Result 5339 states and 14297 transitions. [2022-03-15 16:00:49,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 16:00:49,172 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:49,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:49,195 INFO L225 Difference]: With dead ends: 5339 [2022-03-15 16:00:49,196 INFO L226 Difference]: Without dead ends: 5146 [2022-03-15 16:00:49,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-03-15 16:00:49,197 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 208 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:49,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 748 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:00:49,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5146 states. [2022-03-15 16:00:49,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5146 to 4227. [2022-03-15 16:00:49,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4227 states, 4226 states have (on average 2.7536677709417887) internal successors, (11637), 4226 states have internal predecessors, (11637), 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) [2022-03-15 16:00:49,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4227 states to 4227 states and 11637 transitions. [2022-03-15 16:00:49,316 INFO L78 Accepts]: Start accepts. Automaton has 4227 states and 11637 transitions. Word has length 48 [2022-03-15 16:00:49,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:49,316 INFO L470 AbstractCegarLoop]: Abstraction has 4227 states and 11637 transitions. [2022-03-15 16:00:49,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:00:49,317 INFO L276 IsEmpty]: Start isEmpty. Operand 4227 states and 11637 transitions. [2022-03-15 16:00:49,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:49,326 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:49,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:49,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 16:00:49,327 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:49,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:49,327 INFO L85 PathProgramCache]: Analyzing trace with hash 258926934, now seen corresponding path program 4 times [2022-03-15 16:00:49,327 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:49,328 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351928764] [2022-03-15 16:00:49,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:49,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:49,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:49,536 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:49,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351928764] [2022-03-15 16:00:49,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351928764] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:49,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:49,537 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-15 16:00:49,537 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747642508] [2022-03-15 16:00:49,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:49,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 16:00:49,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:49,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 16:00:49,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-03-15 16:00:49,538 INFO L87 Difference]: Start difference. First operand 4227 states and 11637 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 12 states have internal predecessors, (48), 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) [2022-03-15 16:00:49,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:49,896 INFO L93 Difference]: Finished difference Result 6519 states and 17682 transitions. [2022-03-15 16:00:49,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 16:00:49,897 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 12 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:49,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:49,924 INFO L225 Difference]: With dead ends: 6519 [2022-03-15 16:00:49,924 INFO L226 Difference]: Without dead ends: 6267 [2022-03-15 16:00:49,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-03-15 16:00:49,925 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 233 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:49,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 951 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 16:00:49,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6267 states. [2022-03-15 16:00:50,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6267 to 4492. [2022-03-15 16:00:50,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4492 states, 4491 states have (on average 2.7336896014250724) internal successors, (12277), 4491 states have internal predecessors, (12277), 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) [2022-03-15 16:00:50,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4492 states to 4492 states and 12277 transitions. [2022-03-15 16:00:50,025 INFO L78 Accepts]: Start accepts. Automaton has 4492 states and 12277 transitions. Word has length 48 [2022-03-15 16:00:50,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:50,027 INFO L470 AbstractCegarLoop]: Abstraction has 4492 states and 12277 transitions. [2022-03-15 16:00:50,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 12 states have internal predecessors, (48), 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) [2022-03-15 16:00:50,028 INFO L276 IsEmpty]: Start isEmpty. Operand 4492 states and 12277 transitions. [2022-03-15 16:00:50,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:50,036 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:50,036 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:50,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 16:00:50,036 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:50,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:50,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1316926228, now seen corresponding path program 5 times [2022-03-15 16:00:50,037 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:50,037 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851916987] [2022-03-15 16:00:50,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:50,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:50,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:50,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:50,227 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:50,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851916987] [2022-03-15 16:00:50,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851916987] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:50,228 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:50,228 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-15 16:00:50,228 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874014978] [2022-03-15 16:00:50,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:50,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 16:00:50,229 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:50,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 16:00:50,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-03-15 16:00:50,230 INFO L87 Difference]: Start difference. First operand 4492 states and 12277 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 12 states have internal predecessors, (48), 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) [2022-03-15 16:00:50,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:50,591 INFO L93 Difference]: Finished difference Result 6396 states and 17339 transitions. [2022-03-15 16:00:50,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 16:00:50,592 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 12 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:50,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:50,604 INFO L225 Difference]: With dead ends: 6396 [2022-03-15 16:00:50,604 INFO L226 Difference]: Without dead ends: 5955 [2022-03-15 16:00:50,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-03-15 16:00:50,605 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 205 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:50,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 1087 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 16:00:50,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5955 states. [2022-03-15 16:00:50,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5955 to 4243. [2022-03-15 16:00:50,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4243 states, 4242 states have (on average 2.747053276756247) internal successors, (11653), 4242 states have internal predecessors, (11653), 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) [2022-03-15 16:00:50,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4243 states to 4243 states and 11653 transitions. [2022-03-15 16:00:50,718 INFO L78 Accepts]: Start accepts. Automaton has 4243 states and 11653 transitions. Word has length 48 [2022-03-15 16:00:50,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:50,720 INFO L470 AbstractCegarLoop]: Abstraction has 4243 states and 11653 transitions. [2022-03-15 16:00:50,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 12 states have internal predecessors, (48), 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) [2022-03-15 16:00:50,720 INFO L276 IsEmpty]: Start isEmpty. Operand 4243 states and 11653 transitions. [2022-03-15 16:00:50,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:50,729 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:50,729 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:50,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 16:00:50,730 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:50,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:50,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1361135156, now seen corresponding path program 6 times [2022-03-15 16:00:50,730 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:50,731 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898389330] [2022-03-15 16:00:50,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:50,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:50,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:50,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:50,761 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:50,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898389330] [2022-03-15 16:00:50,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898389330] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:50,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:50,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 16:00:50,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984406734] [2022-03-15 16:00:50,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:50,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 16:00:50,762 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:50,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 16:00:50,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 16:00:50,762 INFO L87 Difference]: Start difference. First operand 4243 states and 11653 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2022-03-15 16:00:50,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:50,785 INFO L93 Difference]: Finished difference Result 4195 states and 11359 transitions. [2022-03-15 16:00:50,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 16:00:50,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:50,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:50,793 INFO L225 Difference]: With dead ends: 4195 [2022-03-15 16:00:50,793 INFO L226 Difference]: Without dead ends: 4183 [2022-03-15 16:00:50,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 16:00:50,794 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 25 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:50,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 100 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 16:00:50,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4183 states. [2022-03-15 16:00:50,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4183 to 4183. [2022-03-15 16:00:50,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4183 states, 4182 states have (on average 2.7082735533237687) internal successors, (11326), 4182 states have internal predecessors, (11326), 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) [2022-03-15 16:00:50,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4183 states to 4183 states and 11326 transitions. [2022-03-15 16:00:50,873 INFO L78 Accepts]: Start accepts. Automaton has 4183 states and 11326 transitions. Word has length 48 [2022-03-15 16:00:50,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:50,873 INFO L470 AbstractCegarLoop]: Abstraction has 4183 states and 11326 transitions. [2022-03-15 16:00:50,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2022-03-15 16:00:50,873 INFO L276 IsEmpty]: Start isEmpty. Operand 4183 states and 11326 transitions. [2022-03-15 16:00:50,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:50,881 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:50,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:50,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 16:00:50,881 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:50,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:50,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1666269088, now seen corresponding path program 7 times [2022-03-15 16:00:50,882 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:50,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877500701] [2022-03-15 16:00:50,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:50,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:50,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:51,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:51,086 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:51,086 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877500701] [2022-03-15 16:00:51,086 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877500701] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:51,086 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:51,086 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 16:00:51,087 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389191807] [2022-03-15 16:00:51,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:51,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 16:00:51,087 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:51,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 16:00:51,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:00:51,088 INFO L87 Difference]: Start difference. First operand 4183 states and 11326 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:00:51,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:51,329 INFO L93 Difference]: Finished difference Result 4503 states and 12105 transitions. [2022-03-15 16:00:51,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 16:00:51,330 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:51,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:51,338 INFO L225 Difference]: With dead ends: 4503 [2022-03-15 16:00:51,338 INFO L226 Difference]: Without dead ends: 4240 [2022-03-15 16:00:51,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-03-15 16:00:51,339 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 79 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:51,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 457 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 16:00:51,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4240 states. [2022-03-15 16:00:51,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4240 to 4181. [2022-03-15 16:00:51,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4181 states, 4180 states have (on average 2.705023923444976) internal successors, (11307), 4180 states have internal predecessors, (11307), 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) [2022-03-15 16:00:51,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4181 states to 4181 states and 11307 transitions. [2022-03-15 16:00:51,412 INFO L78 Accepts]: Start accepts. Automaton has 4181 states and 11307 transitions. Word has length 48 [2022-03-15 16:00:51,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:51,412 INFO L470 AbstractCegarLoop]: Abstraction has 4181 states and 11307 transitions. [2022-03-15 16:00:51,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:00:51,413 INFO L276 IsEmpty]: Start isEmpty. Operand 4181 states and 11307 transitions. [2022-03-15 16:00:51,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:51,420 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:51,420 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:51,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 16:00:51,420 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:51,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:51,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1335436040, now seen corresponding path program 8 times [2022-03-15 16:00:51,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:51,421 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722012150] [2022-03-15 16:00:51,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:51,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:51,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:51,433 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:51,434 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722012150] [2022-03-15 16:00:51,434 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722012150] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:51,434 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:51,434 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 16:00:51,434 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278052917] [2022-03-15 16:00:51,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:51,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 16:00:51,434 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:51,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 16:00:51,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 16:00:51,435 INFO L87 Difference]: Start difference. First operand 4181 states and 11307 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2022-03-15 16:00:51,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:51,453 INFO L93 Difference]: Finished difference Result 4121 states and 10911 transitions. [2022-03-15 16:00:51,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 16:00:51,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:51,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:51,461 INFO L225 Difference]: With dead ends: 4121 [2022-03-15 16:00:51,461 INFO L226 Difference]: Without dead ends: 4121 [2022-03-15 16:00:51,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 16:00:51,462 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 19 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:51,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 100 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 16:00:51,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4121 states. [2022-03-15 16:00:51,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4121 to 4091. [2022-03-15 16:00:51,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4091 states, 4090 states have (on average 2.6496332518337407) internal successors, (10837), 4090 states have internal predecessors, (10837), 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) [2022-03-15 16:00:51,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4091 states to 4091 states and 10837 transitions. [2022-03-15 16:00:51,519 INFO L78 Accepts]: Start accepts. Automaton has 4091 states and 10837 transitions. Word has length 48 [2022-03-15 16:00:51,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:51,519 INFO L470 AbstractCegarLoop]: Abstraction has 4091 states and 10837 transitions. [2022-03-15 16:00:51,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2022-03-15 16:00:51,520 INFO L276 IsEmpty]: Start isEmpty. Operand 4091 states and 10837 transitions. [2022-03-15 16:00:51,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:51,529 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:51,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:51,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 16:00:51,529 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:51,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:51,529 INFO L85 PathProgramCache]: Analyzing trace with hash 295340824, now seen corresponding path program 9 times [2022-03-15 16:00:51,529 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:51,529 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699118528] [2022-03-15 16:00:51,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:51,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:51,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:51,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:51,664 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:51,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699118528] [2022-03-15 16:00:51,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699118528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:51,664 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:51,664 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-15 16:00:51,664 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373005730] [2022-03-15 16:00:51,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:51,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 16:00:51,665 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:51,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 16:00:51,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-03-15 16:00:51,665 INFO L87 Difference]: Start difference. First operand 4091 states and 10837 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 12 states have internal predecessors, (48), 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) [2022-03-15 16:00:52,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:52,099 INFO L93 Difference]: Finished difference Result 5483 states and 14312 transitions. [2022-03-15 16:00:52,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 16:00:52,099 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 12 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:52,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:52,108 INFO L225 Difference]: With dead ends: 5483 [2022-03-15 16:00:52,108 INFO L226 Difference]: Without dead ends: 4793 [2022-03-15 16:00:52,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2022-03-15 16:00:52,109 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 225 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:52,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 910 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 16:00:52,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4793 states. [2022-03-15 16:00:52,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4793 to 4118. [2022-03-15 16:00:52,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4118 states, 4117 states have (on average 2.642458100558659) internal successors, (10879), 4117 states have internal predecessors, (10879), 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) [2022-03-15 16:00:52,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4118 states to 4118 states and 10879 transitions. [2022-03-15 16:00:52,174 INFO L78 Accepts]: Start accepts. Automaton has 4118 states and 10879 transitions. Word has length 48 [2022-03-15 16:00:52,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:52,175 INFO L470 AbstractCegarLoop]: Abstraction has 4118 states and 10879 transitions. [2022-03-15 16:00:52,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 12 states have internal predecessors, (48), 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) [2022-03-15 16:00:52,175 INFO L276 IsEmpty]: Start isEmpty. Operand 4118 states and 10879 transitions. [2022-03-15 16:00:52,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:52,181 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:52,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:52,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 16:00:52,181 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:52,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:52,182 INFO L85 PathProgramCache]: Analyzing trace with hash -553975100, now seen corresponding path program 10 times [2022-03-15 16:00:52,182 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:52,182 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431920158] [2022-03-15 16:00:52,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:52,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:52,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:52,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:52,254 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:52,254 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431920158] [2022-03-15 16:00:52,254 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431920158] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:52,254 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:52,254 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 16:00:52,254 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136074927] [2022-03-15 16:00:52,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:52,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 16:00:52,255 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:52,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 16:00:52,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:00:52,255 INFO L87 Difference]: Start difference. First operand 4118 states and 10879 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:00:52,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:52,464 INFO L93 Difference]: Finished difference Result 8801 states and 23127 transitions. [2022-03-15 16:00:52,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 16:00:52,464 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:52,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:52,478 INFO L225 Difference]: With dead ends: 8801 [2022-03-15 16:00:52,479 INFO L226 Difference]: Without dead ends: 8542 [2022-03-15 16:00:52,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:00:52,479 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 262 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:52,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 331 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:00:52,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8542 states. [2022-03-15 16:00:52,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8542 to 4636. [2022-03-15 16:00:52,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4636 states, 4635 states have (on average 2.637108953613808) internal successors, (12223), 4635 states have internal predecessors, (12223), 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) [2022-03-15 16:00:52,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4636 states to 4636 states and 12223 transitions. [2022-03-15 16:00:52,576 INFO L78 Accepts]: Start accepts. Automaton has 4636 states and 12223 transitions. Word has length 48 [2022-03-15 16:00:52,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:52,576 INFO L470 AbstractCegarLoop]: Abstraction has 4636 states and 12223 transitions. [2022-03-15 16:00:52,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:00:52,576 INFO L276 IsEmpty]: Start isEmpty. Operand 4636 states and 12223 transitions. [2022-03-15 16:00:52,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:52,583 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:52,583 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:52,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-15 16:00:52,583 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:52,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:52,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1347166720, now seen corresponding path program 11 times [2022-03-15 16:00:52,584 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:52,584 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473330988] [2022-03-15 16:00:52,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:52,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:52,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:52,655 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:52,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473330988] [2022-03-15 16:00:52,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473330988] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:52,655 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:52,655 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 16:00:52,656 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872506600] [2022-03-15 16:00:52,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:52,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 16:00:52,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:52,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 16:00:52,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:00:52,657 INFO L87 Difference]: Start difference. First operand 4636 states and 12223 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:00:52,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:52,879 INFO L93 Difference]: Finished difference Result 7348 states and 19196 transitions. [2022-03-15 16:00:52,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 16:00:52,880 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:52,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:52,895 INFO L225 Difference]: With dead ends: 7348 [2022-03-15 16:00:52,895 INFO L226 Difference]: Without dead ends: 6855 [2022-03-15 16:00:52,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-03-15 16:00:52,896 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 247 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:52,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 308 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 16:00:52,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6855 states. [2022-03-15 16:00:52,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6855 to 4528. [2022-03-15 16:00:52,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4528 states, 4527 states have (on average 2.6319858626021646) internal successors, (11915), 4527 states have internal predecessors, (11915), 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) [2022-03-15 16:00:52,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4528 states to 4528 states and 11915 transitions. [2022-03-15 16:00:53,000 INFO L78 Accepts]: Start accepts. Automaton has 4528 states and 11915 transitions. Word has length 48 [2022-03-15 16:00:53,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:53,000 INFO L470 AbstractCegarLoop]: Abstraction has 4528 states and 11915 transitions. [2022-03-15 16:00:53,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:00:53,000 INFO L276 IsEmpty]: Start isEmpty. Operand 4528 states and 11915 transitions. [2022-03-15 16:00:53,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:53,007 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:53,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:53,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-15 16:00:53,007 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:53,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:53,007 INFO L85 PathProgramCache]: Analyzing trace with hash 277835164, now seen corresponding path program 12 times [2022-03-15 16:00:53,008 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:53,008 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826623063] [2022-03-15 16:00:53,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:53,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:53,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:53,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:53,083 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:53,083 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826623063] [2022-03-15 16:00:53,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826623063] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:53,083 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:53,084 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 16:00:53,084 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638508024] [2022-03-15 16:00:53,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:53,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 16:00:53,084 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:53,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 16:00:53,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 16:00:53,084 INFO L87 Difference]: Start difference. First operand 4528 states and 11915 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 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) [2022-03-15 16:00:53,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:53,228 INFO L93 Difference]: Finished difference Result 6584 states and 17186 transitions. [2022-03-15 16:00:53,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 16:00:53,228 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:53,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:53,237 INFO L225 Difference]: With dead ends: 6584 [2022-03-15 16:00:53,237 INFO L226 Difference]: Without dead ends: 6237 [2022-03-15 16:00:53,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 16:00:53,238 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 204 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:53,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 263 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:00:53,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6237 states. [2022-03-15 16:00:53,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6237 to 4571. [2022-03-15 16:00:53,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4571 states, 4570 states have (on average 2.6076586433260394) internal successors, (11917), 4570 states have internal predecessors, (11917), 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) [2022-03-15 16:00:53,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4571 states to 4571 states and 11917 transitions. [2022-03-15 16:00:53,321 INFO L78 Accepts]: Start accepts. Automaton has 4571 states and 11917 transitions. Word has length 48 [2022-03-15 16:00:53,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:53,321 INFO L470 AbstractCegarLoop]: Abstraction has 4571 states and 11917 transitions. [2022-03-15 16:00:53,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 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) [2022-03-15 16:00:53,321 INFO L276 IsEmpty]: Start isEmpty. Operand 4571 states and 11917 transitions. [2022-03-15 16:00:53,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:53,328 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:53,328 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:53,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-15 16:00:53,328 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:53,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:53,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1281372180, now seen corresponding path program 13 times [2022-03-15 16:00:53,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:53,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321072300] [2022-03-15 16:00:53,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:53,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:53,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:53,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:53,421 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:53,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321072300] [2022-03-15 16:00:53,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321072300] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:53,422 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:53,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 16:00:53,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474134727] [2022-03-15 16:00:53,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:53,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 16:00:53,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:53,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 16:00:53,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-03-15 16:00:53,423 INFO L87 Difference]: Start difference. First operand 4571 states and 11917 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:00:53,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:53,683 INFO L93 Difference]: Finished difference Result 5157 states and 13075 transitions. [2022-03-15 16:00:53,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 16:00:53,684 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:53,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:53,691 INFO L225 Difference]: With dead ends: 5157 [2022-03-15 16:00:53,691 INFO L226 Difference]: Without dead ends: 4975 [2022-03-15 16:00:53,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-03-15 16:00:53,691 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 159 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:53,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 457 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 16:00:53,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4975 states. [2022-03-15 16:00:53,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4975 to 4425. [2022-03-15 16:00:53,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4425 states, 4424 states have (on average 2.5526672694394215) internal successors, (11293), 4424 states have internal predecessors, (11293), 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) [2022-03-15 16:00:53,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4425 states to 4425 states and 11293 transitions. [2022-03-15 16:00:53,764 INFO L78 Accepts]: Start accepts. Automaton has 4425 states and 11293 transitions. Word has length 48 [2022-03-15 16:00:53,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:53,764 INFO L470 AbstractCegarLoop]: Abstraction has 4425 states and 11293 transitions. [2022-03-15 16:00:53,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:00:53,765 INFO L276 IsEmpty]: Start isEmpty. Operand 4425 states and 11293 transitions. [2022-03-15 16:00:53,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:53,771 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:53,772 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:53,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-15 16:00:53,772 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:53,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:53,772 INFO L85 PathProgramCache]: Analyzing trace with hash -453077002, now seen corresponding path program 14 times [2022-03-15 16:00:53,772 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:53,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108300224] [2022-03-15 16:00:53,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:53,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:53,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:53,878 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:53,878 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108300224] [2022-03-15 16:00:53,879 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108300224] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:53,879 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:53,879 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 16:00:53,879 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854069052] [2022-03-15 16:00:53,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:53,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 16:00:53,879 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:53,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 16:00:53,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-03-15 16:00:53,880 INFO L87 Difference]: Start difference. First operand 4425 states and 11293 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:00:54,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:54,147 INFO L93 Difference]: Finished difference Result 4977 states and 12561 transitions. [2022-03-15 16:00:54,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 16:00:54,148 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:54,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:54,154 INFO L225 Difference]: With dead ends: 4977 [2022-03-15 16:00:54,155 INFO L226 Difference]: Without dead ends: 4865 [2022-03-15 16:00:54,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-15 16:00:54,155 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 174 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:54,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 445 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 16:00:54,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4865 states. [2022-03-15 16:00:54,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4865 to 4287. [2022-03-15 16:00:54,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4287 states, 4286 states have (on average 2.5501633224451705) internal successors, (10930), 4286 states have internal predecessors, (10930), 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) [2022-03-15 16:00:54,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4287 states to 4287 states and 10930 transitions. [2022-03-15 16:00:54,232 INFO L78 Accepts]: Start accepts. Automaton has 4287 states and 10930 transitions. Word has length 48 [2022-03-15 16:00:54,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:54,232 INFO L470 AbstractCegarLoop]: Abstraction has 4287 states and 10930 transitions. [2022-03-15 16:00:54,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:00:54,232 INFO L276 IsEmpty]: Start isEmpty. Operand 4287 states and 10930 transitions. [2022-03-15 16:00:54,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:54,243 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:54,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:54,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-15 16:00:54,244 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:54,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:54,244 INFO L85 PathProgramCache]: Analyzing trace with hash -16965222, now seen corresponding path program 15 times [2022-03-15 16:00:54,244 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:54,244 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378213489] [2022-03-15 16:00:54,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:54,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:54,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:54,385 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:54,385 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378213489] [2022-03-15 16:00:54,385 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378213489] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:54,385 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:54,385 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 16:00:54,385 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647883923] [2022-03-15 16:00:54,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:54,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 16:00:54,386 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:54,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 16:00:54,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-03-15 16:00:54,387 INFO L87 Difference]: Start difference. First operand 4287 states and 10930 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:00:54,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:54,656 INFO L93 Difference]: Finished difference Result 4925 states and 12434 transitions. [2022-03-15 16:00:54,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 16:00:54,657 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:54,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:54,664 INFO L225 Difference]: With dead ends: 4925 [2022-03-15 16:00:54,664 INFO L226 Difference]: Without dead ends: 4724 [2022-03-15 16:00:54,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-03-15 16:00:54,666 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 163 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:54,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 428 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 16:00:54,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4724 states. [2022-03-15 16:00:54,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4724 to 4272. [2022-03-15 16:00:54,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4272 states, 4271 states have (on average 2.5474127838913603) internal successors, (10880), 4271 states have internal predecessors, (10880), 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) [2022-03-15 16:00:54,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4272 states to 4272 states and 10880 transitions. [2022-03-15 16:00:54,747 INFO L78 Accepts]: Start accepts. Automaton has 4272 states and 10880 transitions. Word has length 48 [2022-03-15 16:00:54,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:54,748 INFO L470 AbstractCegarLoop]: Abstraction has 4272 states and 10880 transitions. [2022-03-15 16:00:54,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:00:54,748 INFO L276 IsEmpty]: Start isEmpty. Operand 4272 states and 10880 transitions. [2022-03-15 16:00:54,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:54,755 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:54,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:54,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-15 16:00:54,755 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:54,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:54,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1408042686, now seen corresponding path program 16 times [2022-03-15 16:00:54,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:54,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173426278] [2022-03-15 16:00:54,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:54,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:54,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:54,890 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:54,890 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173426278] [2022-03-15 16:00:54,890 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173426278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:54,890 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:54,890 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 16:00:54,890 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925128419] [2022-03-15 16:00:54,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:54,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 16:00:54,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:54,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 16:00:54,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-03-15 16:00:54,891 INFO L87 Difference]: Start difference. First operand 4272 states and 10880 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:00:55,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:55,142 INFO L93 Difference]: Finished difference Result 5171 states and 12989 transitions. [2022-03-15 16:00:55,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 16:00:55,143 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:55,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:55,149 INFO L225 Difference]: With dead ends: 5171 [2022-03-15 16:00:55,149 INFO L226 Difference]: Without dead ends: 4803 [2022-03-15 16:00:55,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-03-15 16:00:55,150 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 210 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:55,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 466 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 16:00:55,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4803 states. [2022-03-15 16:00:55,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4803 to 4242. [2022-03-15 16:00:55,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4242 states, 4241 states have (on average 2.5479839660457437) internal successors, (10806), 4241 states have internal predecessors, (10806), 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) [2022-03-15 16:00:55,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4242 states to 4242 states and 10806 transitions. [2022-03-15 16:00:55,210 INFO L78 Accepts]: Start accepts. Automaton has 4242 states and 10806 transitions. Word has length 48 [2022-03-15 16:00:55,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:55,211 INFO L470 AbstractCegarLoop]: Abstraction has 4242 states and 10806 transitions. [2022-03-15 16:00:55,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:00:55,211 INFO L276 IsEmpty]: Start isEmpty. Operand 4242 states and 10806 transitions. [2022-03-15 16:00:55,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:55,216 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:55,216 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:55,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-15 16:00:55,216 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:55,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:55,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1862506978, now seen corresponding path program 17 times [2022-03-15 16:00:55,217 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:55,217 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203947577] [2022-03-15 16:00:55,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:55,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:55,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:55,319 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:55,319 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203947577] [2022-03-15 16:00:55,319 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203947577] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:55,319 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:55,320 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 16:00:55,320 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354044681] [2022-03-15 16:00:55,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:55,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 16:00:55,320 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:55,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 16:00:55,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-03-15 16:00:55,321 INFO L87 Difference]: Start difference. First operand 4242 states and 10806 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:00:55,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:55,552 INFO L93 Difference]: Finished difference Result 5728 states and 14539 transitions. [2022-03-15 16:00:55,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 16:00:55,552 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:55,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:55,559 INFO L225 Difference]: With dead ends: 5728 [2022-03-15 16:00:55,560 INFO L226 Difference]: Without dead ends: 5704 [2022-03-15 16:00:55,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2022-03-15 16:00:55,560 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 338 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:55,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [338 Valid, 306 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:00:55,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5704 states. [2022-03-15 16:00:55,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5704 to 4320. [2022-03-15 16:00:55,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4320 states, 4319 states have (on average 2.545265107663811) internal successors, (10993), 4319 states have internal predecessors, (10993), 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) [2022-03-15 16:00:55,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4320 states to 4320 states and 10993 transitions. [2022-03-15 16:00:55,630 INFO L78 Accepts]: Start accepts. Automaton has 4320 states and 10993 transitions. Word has length 48 [2022-03-15 16:00:55,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:55,630 INFO L470 AbstractCegarLoop]: Abstraction has 4320 states and 10993 transitions. [2022-03-15 16:00:55,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:00:55,630 INFO L276 IsEmpty]: Start isEmpty. Operand 4320 states and 10993 transitions. [2022-03-15 16:00:55,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:55,635 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:55,635 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:55,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-15 16:00:55,636 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:55,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:55,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1131191936, now seen corresponding path program 18 times [2022-03-15 16:00:55,636 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:55,636 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325501067] [2022-03-15 16:00:55,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:55,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:55,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:55,721 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:55,721 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325501067] [2022-03-15 16:00:55,721 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325501067] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:55,721 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:55,721 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 16:00:55,721 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458291363] [2022-03-15 16:00:55,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:55,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 16:00:55,721 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:55,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 16:00:55,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:00:55,722 INFO L87 Difference]: Start difference. First operand 4320 states and 10993 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:00:55,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:55,948 INFO L93 Difference]: Finished difference Result 6341 states and 16010 transitions. [2022-03-15 16:00:55,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 16:00:55,948 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:55,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:55,956 INFO L225 Difference]: With dead ends: 6341 [2022-03-15 16:00:55,956 INFO L226 Difference]: Without dead ends: 6236 [2022-03-15 16:00:55,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=91, Unknown=0, NotChecked=0, Total=156 [2022-03-15 16:00:55,957 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 300 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:55,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 275 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 16:00:55,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6236 states. [2022-03-15 16:00:56,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6236 to 4396. [2022-03-15 16:00:56,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4396 states, 4395 states have (on average 2.544027303754266) internal successors, (11181), 4395 states have internal predecessors, (11181), 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) [2022-03-15 16:00:56,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4396 states to 4396 states and 11181 transitions. [2022-03-15 16:00:56,022 INFO L78 Accepts]: Start accepts. Automaton has 4396 states and 11181 transitions. Word has length 48 [2022-03-15 16:00:56,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:56,022 INFO L470 AbstractCegarLoop]: Abstraction has 4396 states and 11181 transitions. [2022-03-15 16:00:56,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:00:56,022 INFO L276 IsEmpty]: Start isEmpty. Operand 4396 states and 11181 transitions. [2022-03-15 16:00:56,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:56,027 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:56,027 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:56,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-15 16:00:56,027 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:56,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:56,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1069315358, now seen corresponding path program 19 times [2022-03-15 16:00:56,028 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:56,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117424470] [2022-03-15 16:00:56,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:56,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:56,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:56,099 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:56,099 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117424470] [2022-03-15 16:00:56,099 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117424470] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:56,099 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:56,099 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 16:00:56,099 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618554060] [2022-03-15 16:00:56,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:56,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 16:00:56,100 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:56,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 16:00:56,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:00:56,101 INFO L87 Difference]: Start difference. First operand 4396 states and 11181 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:00:56,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:56,230 INFO L93 Difference]: Finished difference Result 5912 states and 15003 transitions. [2022-03-15 16:00:56,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 16:00:56,235 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:56,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:56,243 INFO L225 Difference]: With dead ends: 5912 [2022-03-15 16:00:56,243 INFO L226 Difference]: Without dead ends: 5884 [2022-03-15 16:00:56,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=61, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:00:56,243 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 192 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:56,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 216 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:00:56,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5884 states. [2022-03-15 16:00:56,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5884 to 4526. [2022-03-15 16:00:56,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4526 states, 4525 states have (on average 2.5407734806629834) internal successors, (11497), 4525 states have internal predecessors, (11497), 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) [2022-03-15 16:00:56,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4526 states to 4526 states and 11497 transitions. [2022-03-15 16:00:56,305 INFO L78 Accepts]: Start accepts. Automaton has 4526 states and 11497 transitions. Word has length 48 [2022-03-15 16:00:56,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:56,305 INFO L470 AbstractCegarLoop]: Abstraction has 4526 states and 11497 transitions. [2022-03-15 16:00:56,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:00:56,305 INFO L276 IsEmpty]: Start isEmpty. Operand 4526 states and 11497 transitions. [2022-03-15 16:00:56,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:56,310 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:56,311 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:56,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-15 16:00:56,311 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:56,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:56,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1924383556, now seen corresponding path program 20 times [2022-03-15 16:00:56,311 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:56,311 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010056636] [2022-03-15 16:00:56,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:56,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:56,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:56,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:56,387 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:56,387 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010056636] [2022-03-15 16:00:56,387 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010056636] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:56,387 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:56,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 16:00:56,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673819476] [2022-03-15 16:00:56,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:56,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 16:00:56,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:56,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 16:00:56,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:00:56,388 INFO L87 Difference]: Start difference. First operand 4526 states and 11497 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:00:56,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:56,627 INFO L93 Difference]: Finished difference Result 6311 states and 15849 transitions. [2022-03-15 16:00:56,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 16:00:56,628 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:56,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:56,636 INFO L225 Difference]: With dead ends: 6311 [2022-03-15 16:00:56,636 INFO L226 Difference]: Without dead ends: 6175 [2022-03-15 16:00:56,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=109, Unknown=0, NotChecked=0, Total=182 [2022-03-15 16:00:56,637 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 302 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:56,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 332 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 16:00:56,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6175 states. [2022-03-15 16:00:56,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6175 to 4391. [2022-03-15 16:00:56,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4391 states, 4390 states have (on average 2.5439635535307517) internal successors, (11168), 4390 states have internal predecessors, (11168), 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) [2022-03-15 16:00:56,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4391 states to 4391 states and 11168 transitions. [2022-03-15 16:00:56,729 INFO L78 Accepts]: Start accepts. Automaton has 4391 states and 11168 transitions. Word has length 48 [2022-03-15 16:00:56,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:56,729 INFO L470 AbstractCegarLoop]: Abstraction has 4391 states and 11168 transitions. [2022-03-15 16:00:56,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:00:56,729 INFO L276 IsEmpty]: Start isEmpty. Operand 4391 states and 11168 transitions. [2022-03-15 16:00:56,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:56,734 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:56,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:56,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-15 16:00:56,734 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:56,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:56,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1400447670, now seen corresponding path program 21 times [2022-03-15 16:00:56,735 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:56,735 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247736055] [2022-03-15 16:00:56,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:56,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:56,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:56,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:56,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247736055] [2022-03-15 16:00:56,856 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247736055] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:56,856 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:56,856 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-15 16:00:56,856 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505962477] [2022-03-15 16:00:56,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:56,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 16:00:56,858 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:56,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 16:00:56,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-03-15 16:00:56,858 INFO L87 Difference]: Start difference. First operand 4391 states and 11168 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 12 states have internal predecessors, (48), 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) [2022-03-15 16:00:57,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:57,180 INFO L93 Difference]: Finished difference Result 5588 states and 13943 transitions. [2022-03-15 16:00:57,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 16:00:57,180 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 12 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:57,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:57,187 INFO L225 Difference]: With dead ends: 5588 [2022-03-15 16:00:57,188 INFO L226 Difference]: Without dead ends: 5160 [2022-03-15 16:00:57,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:00:57,189 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 276 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:57,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 771 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 16:00:57,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5160 states. [2022-03-15 16:00:57,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5160 to 4247. [2022-03-15 16:00:57,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4247 states, 4246 states have (on average 2.5508714083843618) internal successors, (10831), 4246 states have internal predecessors, (10831), 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) [2022-03-15 16:00:57,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4247 states to 4247 states and 10831 transitions. [2022-03-15 16:00:57,242 INFO L78 Accepts]: Start accepts. Automaton has 4247 states and 10831 transitions. Word has length 48 [2022-03-15 16:00:57,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:57,242 INFO L470 AbstractCegarLoop]: Abstraction has 4247 states and 10831 transitions. [2022-03-15 16:00:57,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 12 states have internal predecessors, (48), 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) [2022-03-15 16:00:57,242 INFO L276 IsEmpty]: Start isEmpty. Operand 4247 states and 10831 transitions. [2022-03-15 16:00:57,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:57,247 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:57,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:57,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-15 16:00:57,247 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:57,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:57,248 INFO L85 PathProgramCache]: Analyzing trace with hash 459405858, now seen corresponding path program 22 times [2022-03-15 16:00:57,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:57,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854410994] [2022-03-15 16:00:57,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:57,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:57,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:57,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:57,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:57,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854410994] [2022-03-15 16:00:57,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854410994] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:57,366 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:57,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 16:00:57,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763080882] [2022-03-15 16:00:57,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:57,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 16:00:57,366 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:57,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 16:00:57,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-03-15 16:00:57,367 INFO L87 Difference]: Start difference. First operand 4247 states and 10831 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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) [2022-03-15 16:00:57,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:57,685 INFO L93 Difference]: Finished difference Result 5374 states and 13651 transitions. [2022-03-15 16:00:57,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 16:00:57,685 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:57,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:57,693 INFO L225 Difference]: With dead ends: 5374 [2022-03-15 16:00:57,693 INFO L226 Difference]: Without dead ends: 5230 [2022-03-15 16:00:57,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-03-15 16:00:57,694 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 129 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:57,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 828 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 16:00:57,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5230 states. [2022-03-15 16:00:57,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5230 to 4175. [2022-03-15 16:00:57,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4175 states, 4174 states have (on average 2.5558217537134644) internal successors, (10668), 4174 states have internal predecessors, (10668), 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) [2022-03-15 16:00:57,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4175 states to 4175 states and 10668 transitions. [2022-03-15 16:00:57,748 INFO L78 Accepts]: Start accepts. Automaton has 4175 states and 10668 transitions. Word has length 48 [2022-03-15 16:00:57,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:57,748 INFO L470 AbstractCegarLoop]: Abstraction has 4175 states and 10668 transitions. [2022-03-15 16:00:57,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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) [2022-03-15 16:00:57,748 INFO L276 IsEmpty]: Start isEmpty. Operand 4175 states and 10668 transitions. [2022-03-15 16:00:57,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:57,753 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:57,753 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:57,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-15 16:00:57,753 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:57,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:57,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1820026920, now seen corresponding path program 23 times [2022-03-15 16:00:57,753 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:57,753 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887244743] [2022-03-15 16:00:57,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:57,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:57,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:57,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:57,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887244743] [2022-03-15 16:00:57,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887244743] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:57,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:57,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 16:00:57,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951229943] [2022-03-15 16:00:57,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:57,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 16:00:57,870 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:57,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 16:00:57,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:00:57,871 INFO L87 Difference]: Start difference. First operand 4175 states and 10668 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:00:58,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:58,173 INFO L93 Difference]: Finished difference Result 6032 states and 15273 transitions. [2022-03-15 16:00:58,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 16:00:58,173 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:58,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:58,181 INFO L225 Difference]: With dead ends: 6032 [2022-03-15 16:00:58,181 INFO L226 Difference]: Without dead ends: 5695 [2022-03-15 16:00:58,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2022-03-15 16:00:58,181 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 225 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:58,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 632 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 16:00:58,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5695 states. [2022-03-15 16:00:58,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5695 to 4508. [2022-03-15 16:00:58,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4508 states, 4507 states have (on average 2.571333481251387) internal successors, (11589), 4507 states have internal predecessors, (11589), 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) [2022-03-15 16:00:58,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4508 states to 4508 states and 11589 transitions. [2022-03-15 16:00:58,254 INFO L78 Accepts]: Start accepts. Automaton has 4508 states and 11589 transitions. Word has length 48 [2022-03-15 16:00:58,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:58,254 INFO L470 AbstractCegarLoop]: Abstraction has 4508 states and 11589 transitions. [2022-03-15 16:00:58,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:00:58,254 INFO L276 IsEmpty]: Start isEmpty. Operand 4508 states and 11589 transitions. [2022-03-15 16:00:58,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:58,261 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:58,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:58,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-15 16:00:58,262 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:58,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:58,262 INFO L85 PathProgramCache]: Analyzing trace with hash 937439520, now seen corresponding path program 24 times [2022-03-15 16:00:58,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:58,262 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39651792] [2022-03-15 16:00:58,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:58,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:58,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:58,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:58,271 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:58,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39651792] [2022-03-15 16:00:58,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39651792] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:58,271 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:58,272 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 16:00:58,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556256267] [2022-03-15 16:00:58,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:58,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 16:00:58,274 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:58,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 16:00:58,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 16:00:58,300 INFO L87 Difference]: Start difference. First operand 4508 states and 11589 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2022-03-15 16:00:58,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:58,320 INFO L93 Difference]: Finished difference Result 4358 states and 10999 transitions. [2022-03-15 16:00:58,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 16:00:58,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:58,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:58,328 INFO L225 Difference]: With dead ends: 4358 [2022-03-15 16:00:58,328 INFO L226 Difference]: Without dead ends: 4358 [2022-03-15 16:00:58,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 16:00:58,329 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 20 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:58,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 100 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 16:00:58,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4358 states. [2022-03-15 16:00:58,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4358 to 4358. [2022-03-15 16:00:58,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4358 states, 4357 states have (on average 2.5244434243745695) internal successors, (10999), 4357 states have internal predecessors, (10999), 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) [2022-03-15 16:00:58,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4358 states to 4358 states and 10999 transitions. [2022-03-15 16:00:58,389 INFO L78 Accepts]: Start accepts. Automaton has 4358 states and 10999 transitions. Word has length 48 [2022-03-15 16:00:58,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:58,390 INFO L470 AbstractCegarLoop]: Abstraction has 4358 states and 10999 transitions. [2022-03-15 16:00:58,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2022-03-15 16:00:58,390 INFO L276 IsEmpty]: Start isEmpty. Operand 4358 states and 10999 transitions. [2022-03-15 16:00:58,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:58,394 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:58,394 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:58,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-15 16:00:58,395 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:58,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:58,395 INFO L85 PathProgramCache]: Analyzing trace with hash -242687168, now seen corresponding path program 25 times [2022-03-15 16:00:58,395 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:58,395 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624155151] [2022-03-15 16:00:58,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:58,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:58,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:58,468 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:58,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624155151] [2022-03-15 16:00:58,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624155151] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:58,468 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:58,469 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 16:00:58,469 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524457344] [2022-03-15 16:00:58,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:58,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 16:00:58,469 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:58,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 16:00:58,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:00:58,469 INFO L87 Difference]: Start difference. First operand 4358 states and 10999 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:00:58,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:58,616 INFO L93 Difference]: Finished difference Result 5042 states and 12540 transitions. [2022-03-15 16:00:58,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 16:00:58,616 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:58,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:58,622 INFO L225 Difference]: With dead ends: 5042 [2022-03-15 16:00:58,622 INFO L226 Difference]: Without dead ends: 4661 [2022-03-15 16:00:58,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-03-15 16:00:58,622 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 215 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:58,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 720 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:00:58,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4661 states. [2022-03-15 16:00:58,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4661 to 4260. [2022-03-15 16:00:58,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4260 states, 4259 states have (on average 2.5083352899741724) internal successors, (10683), 4259 states have internal predecessors, (10683), 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) [2022-03-15 16:00:58,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4260 states to 4260 states and 10683 transitions. [2022-03-15 16:00:58,673 INFO L78 Accepts]: Start accepts. Automaton has 4260 states and 10683 transitions. Word has length 48 [2022-03-15 16:00:58,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:58,673 INFO L470 AbstractCegarLoop]: Abstraction has 4260 states and 10683 transitions. [2022-03-15 16:00:58,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:00:58,674 INFO L276 IsEmpty]: Start isEmpty. Operand 4260 states and 10683 transitions. [2022-03-15 16:00:58,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:58,678 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:58,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:58,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-15 16:00:58,679 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:58,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:58,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1509006252, now seen corresponding path program 26 times [2022-03-15 16:00:58,679 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:58,679 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457938984] [2022-03-15 16:00:58,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:58,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:58,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:58,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:58,764 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:58,764 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457938984] [2022-03-15 16:00:58,764 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457938984] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:58,764 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:58,764 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 16:00:58,764 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449522822] [2022-03-15 16:00:58,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:58,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 16:00:58,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:58,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 16:00:58,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-03-15 16:00:58,766 INFO L87 Difference]: Start difference. First operand 4260 states and 10683 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:00:58,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:58,998 INFO L93 Difference]: Finished difference Result 6135 states and 15218 transitions. [2022-03-15 16:00:58,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 16:00:58,999 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:58,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:59,006 INFO L225 Difference]: With dead ends: 6135 [2022-03-15 16:00:59,006 INFO L226 Difference]: Without dead ends: 5977 [2022-03-15 16:00:59,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2022-03-15 16:00:59,007 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 219 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:59,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 408 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 16:00:59,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5977 states. [2022-03-15 16:00:59,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5977 to 4284. [2022-03-15 16:00:59,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4284 states, 4283 states have (on average 2.506887695540509) internal successors, (10737), 4283 states have internal predecessors, (10737), 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) [2022-03-15 16:00:59,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4284 states to 4284 states and 10737 transitions. [2022-03-15 16:00:59,065 INFO L78 Accepts]: Start accepts. Automaton has 4284 states and 10737 transitions. Word has length 48 [2022-03-15 16:00:59,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:59,065 INFO L470 AbstractCegarLoop]: Abstraction has 4284 states and 10737 transitions. [2022-03-15 16:00:59,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:00:59,066 INFO L276 IsEmpty]: Start isEmpty. Operand 4284 states and 10737 transitions. [2022-03-15 16:00:59,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:59,070 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:59,070 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:59,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-15 16:00:59,071 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:59,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:59,071 INFO L85 PathProgramCache]: Analyzing trace with hash -2137253948, now seen corresponding path program 27 times [2022-03-15 16:00:59,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:59,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495165702] [2022-03-15 16:00:59,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:59,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:59,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:59,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:59,158 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:59,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495165702] [2022-03-15 16:00:59,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495165702] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:59,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:59,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 16:00:59,158 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318268756] [2022-03-15 16:00:59,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:59,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 16:00:59,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:59,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 16:00:59,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:00:59,159 INFO L87 Difference]: Start difference. First operand 4284 states and 10737 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:00:59,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:59,333 INFO L93 Difference]: Finished difference Result 4837 states and 11933 transitions. [2022-03-15 16:00:59,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 16:00:59,333 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:59,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:59,339 INFO L225 Difference]: With dead ends: 4837 [2022-03-15 16:00:59,339 INFO L226 Difference]: Without dead ends: 4577 [2022-03-15 16:00:59,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:00:59,340 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 149 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:59,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 307 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:00:59,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4577 states. [2022-03-15 16:00:59,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4577 to 4292. [2022-03-15 16:00:59,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4292 states, 4291 states have (on average 2.4977860638545795) internal successors, (10718), 4291 states have internal predecessors, (10718), 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) [2022-03-15 16:00:59,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 10718 transitions. [2022-03-15 16:00:59,390 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 10718 transitions. Word has length 48 [2022-03-15 16:00:59,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:59,391 INFO L470 AbstractCegarLoop]: Abstraction has 4292 states and 10718 transitions. [2022-03-15 16:00:59,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:00:59,391 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 10718 transitions. [2022-03-15 16:00:59,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:59,395 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:59,395 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:59,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-15 16:00:59,396 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:59,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:59,396 INFO L85 PathProgramCache]: Analyzing trace with hash -684235422, now seen corresponding path program 28 times [2022-03-15 16:00:59,396 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:59,396 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846640172] [2022-03-15 16:00:59,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:59,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:59,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:59,487 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:59,487 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846640172] [2022-03-15 16:00:59,487 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846640172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:59,487 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:59,487 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 16:00:59,487 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561269523] [2022-03-15 16:00:59,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:59,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 16:00:59,488 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:59,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 16:00:59,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:00:59,489 INFO L87 Difference]: Start difference. First operand 4292 states and 10718 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:00:59,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:00:59,647 INFO L93 Difference]: Finished difference Result 4926 states and 12010 transitions. [2022-03-15 16:00:59,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 16:00:59,647 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2022-03-15 16:00:59,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:00:59,653 INFO L225 Difference]: With dead ends: 4926 [2022-03-15 16:00:59,653 INFO L226 Difference]: Without dead ends: 4668 [2022-03-15 16:00:59,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:00:59,655 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 133 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:00:59,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 254 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:00:59,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4668 states. [2022-03-15 16:00:59,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4668 to 3571. [2022-03-15 16:00:59,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3571 states, 3570 states have (on average 2.480672268907563) internal successors, (8856), 3570 states have internal predecessors, (8856), 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) [2022-03-15 16:00:59,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3571 states to 3571 states and 8856 transitions. [2022-03-15 16:00:59,702 INFO L78 Accepts]: Start accepts. Automaton has 3571 states and 8856 transitions. Word has length 48 [2022-03-15 16:00:59,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:00:59,702 INFO L470 AbstractCegarLoop]: Abstraction has 3571 states and 8856 transitions. [2022-03-15 16:00:59,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:00:59,702 INFO L276 IsEmpty]: Start isEmpty. Operand 3571 states and 8856 transitions. [2022-03-15 16:00:59,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:00:59,706 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:00:59,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:00:59,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-15 16:00:59,706 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:00:59,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:00:59,707 INFO L85 PathProgramCache]: Analyzing trace with hash -570381410, now seen corresponding path program 29 times [2022-03-15 16:00:59,707 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:00:59,707 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417542654] [2022-03-15 16:00:59,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:00:59,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:00:59,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:00:59,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:00:59,853 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:00:59,853 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417542654] [2022-03-15 16:00:59,853 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417542654] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:00:59,853 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:00:59,853 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-15 16:00:59,854 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72441960] [2022-03-15 16:00:59,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:00:59,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 16:00:59,854 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:00:59,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 16:00:59,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-03-15 16:00:59,854 INFO L87 Difference]: Start difference. First operand 3571 states and 8856 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 12 states have internal predecessors, (48), 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) [2022-03-15 16:01:00,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:00,268 INFO L93 Difference]: Finished difference Result 5830 states and 14374 transitions. [2022-03-15 16:01:00,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 16:01:00,269 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 12 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:00,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:00,275 INFO L225 Difference]: With dead ends: 5830 [2022-03-15 16:01:00,275 INFO L226 Difference]: Without dead ends: 5806 [2022-03-15 16:01:00,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2022-03-15 16:01:00,276 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 190 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:00,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 730 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 16:01:00,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5806 states. [2022-03-15 16:01:00,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5806 to 3482. [2022-03-15 16:01:00,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3482 states, 3481 states have (on average 2.483769031887389) internal successors, (8646), 3481 states have internal predecessors, (8646), 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) [2022-03-15 16:01:00,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3482 states to 3482 states and 8646 transitions. [2022-03-15 16:01:00,320 INFO L78 Accepts]: Start accepts. Automaton has 3482 states and 8646 transitions. Word has length 48 [2022-03-15 16:01:00,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:00,320 INFO L470 AbstractCegarLoop]: Abstraction has 3482 states and 8646 transitions. [2022-03-15 16:01:00,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 12 states have internal predecessors, (48), 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) [2022-03-15 16:01:00,320 INFO L276 IsEmpty]: Start isEmpty. Operand 3482 states and 8646 transitions. [2022-03-15 16:01:00,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:00,323 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:00,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:00,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-15 16:01:00,324 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:00,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:00,324 INFO L85 PathProgramCache]: Analyzing trace with hash 487617884, now seen corresponding path program 30 times [2022-03-15 16:01:00,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:00,324 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615100558] [2022-03-15 16:01:00,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:00,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:00,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:00,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:00,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615100558] [2022-03-15 16:01:00,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615100558] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:00,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:00,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 16:01:00,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692068937] [2022-03-15 16:01:00,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:00,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 16:01:00,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:00,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 16:01:00,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:01:00,426 INFO L87 Difference]: Start difference. First operand 3482 states and 8646 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:01:00,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:00,559 INFO L93 Difference]: Finished difference Result 3772 states and 9343 transitions. [2022-03-15 16:01:00,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 16:01:00,559 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:00,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:00,564 INFO L225 Difference]: With dead ends: 3772 [2022-03-15 16:01:00,564 INFO L226 Difference]: Without dead ends: 3654 [2022-03-15 16:01:00,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:01:00,565 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 62 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:00,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 326 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:00,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3654 states. [2022-03-15 16:01:00,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3654 to 3477. [2022-03-15 16:01:00,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3477 states, 3476 states have (on average 2.4838895281933255) internal successors, (8634), 3476 states have internal predecessors, (8634), 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) [2022-03-15 16:01:00,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3477 states to 3477 states and 8634 transitions. [2022-03-15 16:01:00,601 INFO L78 Accepts]: Start accepts. Automaton has 3477 states and 8634 transitions. Word has length 48 [2022-03-15 16:01:00,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:00,601 INFO L470 AbstractCegarLoop]: Abstraction has 3477 states and 8634 transitions. [2022-03-15 16:01:00,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:01:00,602 INFO L276 IsEmpty]: Start isEmpty. Operand 3477 states and 8634 transitions. [2022-03-15 16:01:00,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:00,605 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:00,605 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:00,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-15 16:01:00,606 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:00,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:00,606 INFO L85 PathProgramCache]: Analyzing trace with hash 639692672, now seen corresponding path program 31 times [2022-03-15 16:01:00,606 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:00,606 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281600098] [2022-03-15 16:01:00,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:00,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:00,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:00,707 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:00,707 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281600098] [2022-03-15 16:01:00,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281600098] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:00,707 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:00,707 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 16:01:00,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861589928] [2022-03-15 16:01:00,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:00,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 16:01:00,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:00,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 16:01:00,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:01:00,708 INFO L87 Difference]: Start difference. First operand 3477 states and 8634 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:01:00,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:00,870 INFO L93 Difference]: Finished difference Result 4270 states and 10588 transitions. [2022-03-15 16:01:00,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 16:01:00,871 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:00,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:00,876 INFO L225 Difference]: With dead ends: 4270 [2022-03-15 16:01:00,876 INFO L226 Difference]: Without dead ends: 4120 [2022-03-15 16:01:00,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:01:00,876 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 91 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:00,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 337 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:00,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4120 states. [2022-03-15 16:01:00,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4120 to 3327. [2022-03-15 16:01:00,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3327 states, 3326 states have (on average 2.4954900781719784) internal successors, (8300), 3326 states have internal predecessors, (8300), 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) [2022-03-15 16:01:00,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3327 states to 3327 states and 8300 transitions. [2022-03-15 16:01:00,918 INFO L78 Accepts]: Start accepts. Automaton has 3327 states and 8300 transitions. Word has length 48 [2022-03-15 16:01:00,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:00,918 INFO L470 AbstractCegarLoop]: Abstraction has 3327 states and 8300 transitions. [2022-03-15 16:01:00,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:01:00,919 INFO L276 IsEmpty]: Start isEmpty. Operand 3327 states and 8300 transitions. [2022-03-15 16:01:00,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:00,922 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:00,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:00,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-15 16:01:00,922 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:00,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:00,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1887273988, now seen corresponding path program 32 times [2022-03-15 16:01:00,923 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:00,923 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546118650] [2022-03-15 16:01:00,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:00,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:00,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:00,975 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:00,975 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546118650] [2022-03-15 16:01:00,975 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546118650] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:00,975 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:00,975 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 16:01:00,976 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058011230] [2022-03-15 16:01:00,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:00,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 16:01:00,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:00,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 16:01:00,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:01:00,976 INFO L87 Difference]: Start difference. First operand 3327 states and 8300 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:01:01,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:01,145 INFO L93 Difference]: Finished difference Result 3911 states and 9597 transitions. [2022-03-15 16:01:01,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 16:01:01,146 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:01,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:01,150 INFO L225 Difference]: With dead ends: 3911 [2022-03-15 16:01:01,150 INFO L226 Difference]: Without dead ends: 3558 [2022-03-15 16:01:01,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-03-15 16:01:01,150 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 198 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:01,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 738 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:01,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3558 states. [2022-03-15 16:01:01,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3558 to 3198. [2022-03-15 16:01:01,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3198 states, 3197 states have (on average 2.4745073506412263) internal successors, (7911), 3197 states have internal predecessors, (7911), 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) [2022-03-15 16:01:01,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3198 states to 3198 states and 7911 transitions. [2022-03-15 16:01:01,188 INFO L78 Accepts]: Start accepts. Automaton has 3198 states and 7911 transitions. Word has length 48 [2022-03-15 16:01:01,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:01,188 INFO L470 AbstractCegarLoop]: Abstraction has 3198 states and 7911 transitions. [2022-03-15 16:01:01,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:01:01,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3198 states and 7911 transitions. [2022-03-15 16:01:01,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:01,192 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:01,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:01,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-15 16:01:01,192 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:01,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:01,193 INFO L85 PathProgramCache]: Analyzing trace with hash 2093953770, now seen corresponding path program 33 times [2022-03-15 16:01:01,193 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:01,193 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731932050] [2022-03-15 16:01:01,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:01,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:01,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:01,284 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:01,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731932050] [2022-03-15 16:01:01,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731932050] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:01,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:01,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 16:01:01,284 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888169276] [2022-03-15 16:01:01,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:01,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 16:01:01,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:01,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 16:01:01,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:01:01,285 INFO L87 Difference]: Start difference. First operand 3198 states and 7911 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:01:01,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:01,403 INFO L93 Difference]: Finished difference Result 4543 states and 11133 transitions. [2022-03-15 16:01:01,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 16:01:01,403 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:01,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:01,408 INFO L225 Difference]: With dead ends: 4543 [2022-03-15 16:01:01,409 INFO L226 Difference]: Without dead ends: 4407 [2022-03-15 16:01:01,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:01:01,409 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 146 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:01,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 296 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:01,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4407 states. [2022-03-15 16:01:01,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4407 to 3734. [2022-03-15 16:01:01,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3734 states, 3733 states have (on average 2.4653094026252345) internal successors, (9203), 3733 states have internal predecessors, (9203), 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) [2022-03-15 16:01:01,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3734 states to 3734 states and 9203 transitions. [2022-03-15 16:01:01,462 INFO L78 Accepts]: Start accepts. Automaton has 3734 states and 9203 transitions. Word has length 48 [2022-03-15 16:01:01,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:01,462 INFO L470 AbstractCegarLoop]: Abstraction has 3734 states and 9203 transitions. [2022-03-15 16:01:01,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:01:01,463 INFO L276 IsEmpty]: Start isEmpty. Operand 3734 states and 9203 transitions. [2022-03-15 16:01:01,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:01,467 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:01,468 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:01,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-15 16:01:01,468 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:01,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:01,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1544148968, now seen corresponding path program 34 times [2022-03-15 16:01:01,468 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:01,468 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457428721] [2022-03-15 16:01:01,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:01,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:01,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:01,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:01,574 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:01,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457428721] [2022-03-15 16:01:01,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457428721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:01,574 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:01,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 16:01:01,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840803417] [2022-03-15 16:01:01,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:01,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 16:01:01,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:01,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 16:01:01,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:01:01,575 INFO L87 Difference]: Start difference. First operand 3734 states and 9203 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:01:01,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:01,700 INFO L93 Difference]: Finished difference Result 5682 states and 13818 transitions. [2022-03-15 16:01:01,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 16:01:01,700 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:01,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:01,707 INFO L225 Difference]: With dead ends: 5682 [2022-03-15 16:01:01,707 INFO L226 Difference]: Without dead ends: 5499 [2022-03-15 16:01:01,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:01:01,708 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 111 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:01,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 272 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:01,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5499 states. [2022-03-15 16:01:01,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5499 to 3869. [2022-03-15 16:01:01,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3869 states, 3868 states have (on average 2.468459152016546) internal successors, (9548), 3868 states have internal predecessors, (9548), 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) [2022-03-15 16:01:01,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3869 states to 3869 states and 9548 transitions. [2022-03-15 16:01:01,755 INFO L78 Accepts]: Start accepts. Automaton has 3869 states and 9548 transitions. Word has length 48 [2022-03-15 16:01:01,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:01,756 INFO L470 AbstractCegarLoop]: Abstraction has 3869 states and 9548 transitions. [2022-03-15 16:01:01,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:01:01,756 INFO L276 IsEmpty]: Start isEmpty. Operand 3869 states and 9548 transitions. [2022-03-15 16:01:01,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:01,759 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:01,760 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:01,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-15 16:01:01,760 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:01,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:01,760 INFO L85 PathProgramCache]: Analyzing trace with hash -82170110, now seen corresponding path program 35 times [2022-03-15 16:01:01,760 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:01,760 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209019174] [2022-03-15 16:01:01,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:01,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:01,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:01,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:01,840 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:01,840 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209019174] [2022-03-15 16:01:01,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209019174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:01,841 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:01,841 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 16:01:01,841 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338057253] [2022-03-15 16:01:01,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:01,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 16:01:01,841 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:01,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 16:01:01,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:01:01,841 INFO L87 Difference]: Start difference. First operand 3869 states and 9548 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:01:01,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:01,951 INFO L93 Difference]: Finished difference Result 4363 states and 10674 transitions. [2022-03-15 16:01:01,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 16:01:01,952 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:01,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:01,957 INFO L225 Difference]: With dead ends: 4363 [2022-03-15 16:01:01,957 INFO L226 Difference]: Without dead ends: 4211 [2022-03-15 16:01:01,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:01:01,958 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 140 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:01,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 264 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:01,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4211 states. [2022-03-15 16:01:01,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4211 to 3707. [2022-03-15 16:01:02,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3707 states, 3706 states have (on average 2.453588774959525) internal successors, (9093), 3706 states have internal predecessors, (9093), 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) [2022-03-15 16:01:02,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3707 states to 3707 states and 9093 transitions. [2022-03-15 16:01:02,008 INFO L78 Accepts]: Start accepts. Automaton has 3707 states and 9093 transitions. Word has length 48 [2022-03-15 16:01:02,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:02,008 INFO L470 AbstractCegarLoop]: Abstraction has 3707 states and 9093 transitions. [2022-03-15 16:01:02,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:01:02,009 INFO L276 IsEmpty]: Start isEmpty. Operand 3707 states and 9093 transitions. [2022-03-15 16:01:02,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:02,013 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:02,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:02,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-15 16:01:02,013 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:02,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:02,014 INFO L85 PathProgramCache]: Analyzing trace with hash -631974912, now seen corresponding path program 36 times [2022-03-15 16:01:02,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:02,014 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073424948] [2022-03-15 16:01:02,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:02,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:02,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:02,081 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:02,081 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073424948] [2022-03-15 16:01:02,081 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073424948] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:02,081 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:02,081 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 16:01:02,081 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111966905] [2022-03-15 16:01:02,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:02,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 16:01:02,081 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:02,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 16:01:02,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:01:02,082 INFO L87 Difference]: Start difference. First operand 3707 states and 9093 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:01:02,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:02,167 INFO L93 Difference]: Finished difference Result 4120 states and 10055 transitions. [2022-03-15 16:01:02,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 16:01:02,167 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:02,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:02,171 INFO L225 Difference]: With dead ends: 4120 [2022-03-15 16:01:02,171 INFO L226 Difference]: Without dead ends: 3818 [2022-03-15 16:01:02,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:01:02,172 INFO L933 BasicCegarLoop]: 68 mSDtfsCounter, 127 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:02,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 196 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:02,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3818 states. [2022-03-15 16:01:02,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3818 to 3561. [2022-03-15 16:01:02,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3561 states, 3560 states have (on average 2.4401685393258425) internal successors, (8687), 3560 states have internal predecessors, (8687), 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) [2022-03-15 16:01:02,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3561 states to 3561 states and 8687 transitions. [2022-03-15 16:01:02,208 INFO L78 Accepts]: Start accepts. Automaton has 3561 states and 8687 transitions. Word has length 48 [2022-03-15 16:01:02,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:02,208 INFO L470 AbstractCegarLoop]: Abstraction has 3561 states and 8687 transitions. [2022-03-15 16:01:02,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:01:02,209 INFO L276 IsEmpty]: Start isEmpty. Operand 3561 states and 8687 transitions. [2022-03-15 16:01:02,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:02,212 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:02,212 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:02,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-15 16:01:02,212 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:02,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:02,213 INFO L85 PathProgramCache]: Analyzing trace with hash -442702434, now seen corresponding path program 37 times [2022-03-15 16:01:02,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:02,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789344827] [2022-03-15 16:01:02,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:02,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:02,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:02,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:02,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789344827] [2022-03-15 16:01:02,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789344827] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:02,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:02,361 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 16:01:02,361 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549598405] [2022-03-15 16:01:02,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:02,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 16:01:02,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:02,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 16:01:02,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-03-15 16:01:02,362 INFO L87 Difference]: Start difference. First operand 3561 states and 8687 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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) [2022-03-15 16:01:02,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:02,744 INFO L93 Difference]: Finished difference Result 4769 states and 11382 transitions. [2022-03-15 16:01:02,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 16:01:02,744 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:02,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:02,748 INFO L225 Difference]: With dead ends: 4769 [2022-03-15 16:01:02,748 INFO L226 Difference]: Without dead ends: 4318 [2022-03-15 16:01:02,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2022-03-15 16:01:02,751 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 202 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:02,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 724 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 16:01:02,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4318 states. [2022-03-15 16:01:02,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4318 to 3076. [2022-03-15 16:01:02,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3076 states, 3075 states have (on average 2.4230894308943087) internal successors, (7451), 3075 states have internal predecessors, (7451), 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) [2022-03-15 16:01:02,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3076 states to 3076 states and 7451 transitions. [2022-03-15 16:01:02,785 INFO L78 Accepts]: Start accepts. Automaton has 3076 states and 7451 transitions. Word has length 48 [2022-03-15 16:01:02,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:02,785 INFO L470 AbstractCegarLoop]: Abstraction has 3076 states and 7451 transitions. [2022-03-15 16:01:02,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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) [2022-03-15 16:01:02,785 INFO L276 IsEmpty]: Start isEmpty. Operand 3076 states and 7451 transitions. [2022-03-15 16:01:02,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:02,788 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:02,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:02,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-15 16:01:02,788 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:02,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:02,788 INFO L85 PathProgramCache]: Analyzing trace with hash 396345080, now seen corresponding path program 38 times [2022-03-15 16:01:02,788 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:02,789 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731741636] [2022-03-15 16:01:02,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:02,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:02,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:02,847 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:02,847 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731741636] [2022-03-15 16:01:02,847 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731741636] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:02,848 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:02,848 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 16:01:02,848 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587370025] [2022-03-15 16:01:02,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:02,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 16:01:02,849 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:02,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 16:01:02,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:01:02,849 INFO L87 Difference]: Start difference. First operand 3076 states and 7451 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:01:02,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:02,989 INFO L93 Difference]: Finished difference Result 3320 states and 7939 transitions. [2022-03-15 16:01:02,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 16:01:02,989 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:02,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:02,993 INFO L225 Difference]: With dead ends: 3320 [2022-03-15 16:01:02,993 INFO L226 Difference]: Without dead ends: 2804 [2022-03-15 16:01:02,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-03-15 16:01:02,993 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 185 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:02,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 697 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:02,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2022-03-15 16:01:03,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2634. [2022-03-15 16:01:03,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2634 states, 2633 states have (on average 2.3744777819977214) internal successors, (6252), 2633 states have internal predecessors, (6252), 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) [2022-03-15 16:01:03,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2634 states to 2634 states and 6252 transitions. [2022-03-15 16:01:03,020 INFO L78 Accepts]: Start accepts. Automaton has 2634 states and 6252 transitions. Word has length 48 [2022-03-15 16:01:03,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:03,020 INFO L470 AbstractCegarLoop]: Abstraction has 2634 states and 6252 transitions. [2022-03-15 16:01:03,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:01:03,020 INFO L276 IsEmpty]: Start isEmpty. Operand 2634 states and 6252 transitions. [2022-03-15 16:01:03,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:03,022 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:03,022 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:03,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-15 16:01:03,022 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:03,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:03,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1620442158, now seen corresponding path program 39 times [2022-03-15 16:01:03,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:03,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787956169] [2022-03-15 16:01:03,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:03,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:03,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:03,121 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:03,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787956169] [2022-03-15 16:01:03,121 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787956169] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:03,121 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:03,121 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 16:01:03,121 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146103114] [2022-03-15 16:01:03,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:03,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 16:01:03,121 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:03,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 16:01:03,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:01:03,122 INFO L87 Difference]: Start difference. First operand 2634 states and 6252 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:03,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:03,398 INFO L93 Difference]: Finished difference Result 4086 states and 9476 transitions. [2022-03-15 16:01:03,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 16:01:03,399 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:03,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:03,404 INFO L225 Difference]: With dead ends: 4086 [2022-03-15 16:01:03,404 INFO L226 Difference]: Without dead ends: 3986 [2022-03-15 16:01:03,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2022-03-15 16:01:03,404 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 401 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:03,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [401 Valid, 377 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 16:01:03,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3986 states. [2022-03-15 16:01:03,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3986 to 2594. [2022-03-15 16:01:03,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2594 states, 2593 states have (on average 2.362514462013112) internal successors, (6126), 2593 states have internal predecessors, (6126), 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) [2022-03-15 16:01:03,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2594 states to 2594 states and 6126 transitions. [2022-03-15 16:01:03,436 INFO L78 Accepts]: Start accepts. Automaton has 2594 states and 6126 transitions. Word has length 48 [2022-03-15 16:01:03,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:03,437 INFO L470 AbstractCegarLoop]: Abstraction has 2594 states and 6126 transitions. [2022-03-15 16:01:03,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:03,437 INFO L276 IsEmpty]: Start isEmpty. Operand 2594 states and 6126 transitions. [2022-03-15 16:01:03,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:03,439 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:03,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:03,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-15 16:01:03,439 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:03,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:03,440 INFO L85 PathProgramCache]: Analyzing trace with hash -995262816, now seen corresponding path program 40 times [2022-03-15 16:01:03,440 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:03,440 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709094744] [2022-03-15 16:01:03,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:03,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:03,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:03,587 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:03,587 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709094744] [2022-03-15 16:01:03,587 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709094744] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:03,587 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:03,587 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 16:01:03,587 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964034441] [2022-03-15 16:01:03,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:03,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 16:01:03,587 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:03,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 16:01:03,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:01:03,588 INFO L87 Difference]: Start difference. First operand 2594 states and 6126 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:03,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:03,739 INFO L93 Difference]: Finished difference Result 3239 states and 7503 transitions. [2022-03-15 16:01:03,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 16:01:03,740 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:03,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:03,743 INFO L225 Difference]: With dead ends: 3239 [2022-03-15 16:01:03,743 INFO L226 Difference]: Without dead ends: 2723 [2022-03-15 16:01:03,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-03-15 16:01:03,744 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 180 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:03,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 334 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:03,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states. [2022-03-15 16:01:03,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 2225. [2022-03-15 16:01:03,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2225 states, 2224 states have (on average 2.367356115107914) internal successors, (5265), 2224 states have internal predecessors, (5265), 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) [2022-03-15 16:01:03,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2225 states to 2225 states and 5265 transitions. [2022-03-15 16:01:03,768 INFO L78 Accepts]: Start accepts. Automaton has 2225 states and 5265 transitions. Word has length 48 [2022-03-15 16:01:03,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:03,768 INFO L470 AbstractCegarLoop]: Abstraction has 2225 states and 5265 transitions. [2022-03-15 16:01:03,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:03,768 INFO L276 IsEmpty]: Start isEmpty. Operand 2225 states and 5265 transitions. [2022-03-15 16:01:03,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:03,771 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:03,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:03,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-15 16:01:03,771 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:03,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:03,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1178398786, now seen corresponding path program 41 times [2022-03-15 16:01:03,771 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:03,771 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832002136] [2022-03-15 16:01:03,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:03,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:03,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:03,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:03,868 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:03,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832002136] [2022-03-15 16:01:03,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832002136] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:03,868 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:03,868 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 16:01:03,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553998028] [2022-03-15 16:01:03,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:03,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 16:01:03,869 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:03,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 16:01:03,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:01:03,869 INFO L87 Difference]: Start difference. First operand 2225 states and 5265 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:01:04,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:04,014 INFO L93 Difference]: Finished difference Result 2182 states and 5114 transitions. [2022-03-15 16:01:04,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 16:01:04,014 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:04,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:04,017 INFO L225 Difference]: With dead ends: 2182 [2022-03-15 16:01:04,017 INFO L226 Difference]: Without dead ends: 2136 [2022-03-15 16:01:04,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-03-15 16:01:04,017 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 79 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:04,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 303 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:04,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states. [2022-03-15 16:01:04,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 1890. [2022-03-15 16:01:04,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1890 states, 1889 states have (on average 2.3737427210164106) internal successors, (4484), 1889 states have internal predecessors, (4484), 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) [2022-03-15 16:01:04,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1890 states and 4484 transitions. [2022-03-15 16:01:04,037 INFO L78 Accepts]: Start accepts. Automaton has 1890 states and 4484 transitions. Word has length 48 [2022-03-15 16:01:04,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:04,037 INFO L470 AbstractCegarLoop]: Abstraction has 1890 states and 4484 transitions. [2022-03-15 16:01:04,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:01:04,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1890 states and 4484 transitions. [2022-03-15 16:01:04,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:04,039 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:04,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:04,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-15 16:01:04,039 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:04,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:04,039 INFO L85 PathProgramCache]: Analyzing trace with hash -68059828, now seen corresponding path program 42 times [2022-03-15 16:01:04,039 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:04,039 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132455227] [2022-03-15 16:01:04,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:04,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:04,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:04,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:04,129 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:04,129 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132455227] [2022-03-15 16:01:04,129 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132455227] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:04,129 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:04,129 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 16:01:04,129 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551040273] [2022-03-15 16:01:04,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:04,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 16:01:04,130 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:04,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 16:01:04,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:01:04,131 INFO L87 Difference]: Start difference. First operand 1890 states and 4484 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:01:04,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:04,299 INFO L93 Difference]: Finished difference Result 2618 states and 6033 transitions. [2022-03-15 16:01:04,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 16:01:04,299 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:04,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:04,302 INFO L225 Difference]: With dead ends: 2618 [2022-03-15 16:01:04,302 INFO L226 Difference]: Without dead ends: 2445 [2022-03-15 16:01:04,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-03-15 16:01:04,303 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 328 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:04,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [328 Valid, 283 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:04,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2445 states. [2022-03-15 16:01:04,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2445 to 1876. [2022-03-15 16:01:04,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1876 states, 1875 states have (on average 2.368) internal successors, (4440), 1875 states have internal predecessors, (4440), 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) [2022-03-15 16:01:04,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 4440 transitions. [2022-03-15 16:01:04,322 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 4440 transitions. Word has length 48 [2022-03-15 16:01:04,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:04,322 INFO L470 AbstractCegarLoop]: Abstraction has 1876 states and 4440 transitions. [2022-03-15 16:01:04,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:01:04,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 4440 transitions. [2022-03-15 16:01:04,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:04,324 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:04,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:04,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-15 16:01:04,324 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:04,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:04,324 INFO L85 PathProgramCache]: Analyzing trace with hash -232092392, now seen corresponding path program 43 times [2022-03-15 16:01:04,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:04,324 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559884222] [2022-03-15 16:01:04,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:04,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:04,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:04,406 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:04,406 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559884222] [2022-03-15 16:01:04,406 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559884222] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:04,406 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:04,407 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 16:01:04,407 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745867440] [2022-03-15 16:01:04,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:04,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 16:01:04,407 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:04,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 16:01:04,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:01:04,407 INFO L87 Difference]: Start difference. First operand 1876 states and 4440 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:01:04,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:04,532 INFO L93 Difference]: Finished difference Result 2064 states and 4815 transitions. [2022-03-15 16:01:04,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 16:01:04,532 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:04,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:04,534 INFO L225 Difference]: With dead ends: 2064 [2022-03-15 16:01:04,535 INFO L226 Difference]: Without dead ends: 1971 [2022-03-15 16:01:04,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-03-15 16:01:04,535 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 184 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:04,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 679 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:04,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2022-03-15 16:01:04,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1816. [2022-03-15 16:01:04,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1816 states, 1815 states have (on average 2.3636363636363638) internal successors, (4290), 1815 states have internal predecessors, (4290), 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) [2022-03-15 16:01:04,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1816 states to 1816 states and 4290 transitions. [2022-03-15 16:01:04,552 INFO L78 Accepts]: Start accepts. Automaton has 1816 states and 4290 transitions. Word has length 48 [2022-03-15 16:01:04,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:04,552 INFO L470 AbstractCegarLoop]: Abstraction has 1816 states and 4290 transitions. [2022-03-15 16:01:04,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:01:04,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1816 states and 4290 transitions. [2022-03-15 16:01:04,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:04,554 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:04,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:04,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-15 16:01:04,554 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:04,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:04,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1489781080, now seen corresponding path program 44 times [2022-03-15 16:01:04,554 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:04,554 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960412197] [2022-03-15 16:01:04,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:04,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:04,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:04,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:04,728 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:04,728 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960412197] [2022-03-15 16:01:04,728 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960412197] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:04,728 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:04,728 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 16:01:04,728 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42550385] [2022-03-15 16:01:04,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:04,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 16:01:04,729 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:04,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 16:01:04,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 16:01:04,729 INFO L87 Difference]: Start difference. First operand 1816 states and 4290 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:01:04,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:04,926 INFO L93 Difference]: Finished difference Result 2132 states and 4983 transitions. [2022-03-15 16:01:04,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 16:01:04,926 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:04,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:04,929 INFO L225 Difference]: With dead ends: 2132 [2022-03-15 16:01:04,929 INFO L226 Difference]: Without dead ends: 2016 [2022-03-15 16:01:04,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-03-15 16:01:04,929 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 86 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:04,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 446 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 16:01:04,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2016 states. [2022-03-15 16:01:04,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2016 to 1983. [2022-03-15 16:01:04,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1983 states, 1982 states have (on average 2.3526740665993944) internal successors, (4663), 1982 states have internal predecessors, (4663), 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) [2022-03-15 16:01:04,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1983 states to 1983 states and 4663 transitions. [2022-03-15 16:01:04,951 INFO L78 Accepts]: Start accepts. Automaton has 1983 states and 4663 transitions. Word has length 48 [2022-03-15 16:01:04,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:04,951 INFO L470 AbstractCegarLoop]: Abstraction has 1983 states and 4663 transitions. [2022-03-15 16:01:04,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:01:04,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1983 states and 4663 transitions. [2022-03-15 16:01:04,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:04,953 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:04,953 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:04,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-15 16:01:04,953 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:04,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:04,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1230917288, now seen corresponding path program 45 times [2022-03-15 16:01:04,954 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:04,954 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686672658] [2022-03-15 16:01:04,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:04,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:05,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:05,139 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:05,140 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686672658] [2022-03-15 16:01:05,140 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686672658] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:05,140 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:05,140 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 16:01:05,140 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764178976] [2022-03-15 16:01:05,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:05,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 16:01:05,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:05,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 16:01:05,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:01:05,141 INFO L87 Difference]: Start difference. First operand 1983 states and 4663 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:05,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:05,300 INFO L93 Difference]: Finished difference Result 2430 states and 5727 transitions. [2022-03-15 16:01:05,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 16:01:05,300 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:05,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:05,303 INFO L225 Difference]: With dead ends: 2430 [2022-03-15 16:01:05,303 INFO L226 Difference]: Without dead ends: 2364 [2022-03-15 16:01:05,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:01:05,303 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 83 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:05,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 453 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:05,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2364 states. [2022-03-15 16:01:05,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2364 to 2127. [2022-03-15 16:01:05,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2127 states, 2126 states have (on average 2.348541862652869) internal successors, (4993), 2126 states have internal predecessors, (4993), 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) [2022-03-15 16:01:05,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2127 states to 2127 states and 4993 transitions. [2022-03-15 16:01:05,326 INFO L78 Accepts]: Start accepts. Automaton has 2127 states and 4993 transitions. Word has length 48 [2022-03-15 16:01:05,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:05,326 INFO L470 AbstractCegarLoop]: Abstraction has 2127 states and 4993 transitions. [2022-03-15 16:01:05,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:05,327 INFO L276 IsEmpty]: Start isEmpty. Operand 2127 states and 4993 transitions. [2022-03-15 16:01:05,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:05,329 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:05,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:05,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-15 16:01:05,329 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:05,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:05,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1330221478, now seen corresponding path program 46 times [2022-03-15 16:01:05,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:05,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985216035] [2022-03-15 16:01:05,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:05,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:05,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:05,469 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:05,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985216035] [2022-03-15 16:01:05,469 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985216035] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:05,469 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:05,470 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 16:01:05,470 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258710895] [2022-03-15 16:01:05,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:05,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 16:01:05,470 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:05,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 16:01:05,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:01:05,471 INFO L87 Difference]: Start difference. First operand 2127 states and 4993 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:05,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:05,681 INFO L93 Difference]: Finished difference Result 2404 states and 5638 transitions. [2022-03-15 16:01:05,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 16:01:05,681 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:05,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:05,684 INFO L225 Difference]: With dead ends: 2404 [2022-03-15 16:01:05,684 INFO L226 Difference]: Without dead ends: 2331 [2022-03-15 16:01:05,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-03-15 16:01:05,686 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 72 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:05,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 580 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 16:01:05,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2331 states. [2022-03-15 16:01:05,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2331 to 2090. [2022-03-15 16:01:05,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2090 states, 2089 states have (on average 2.347534705600766) internal successors, (4904), 2089 states have internal predecessors, (4904), 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) [2022-03-15 16:01:05,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 4904 transitions. [2022-03-15 16:01:05,707 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 4904 transitions. Word has length 48 [2022-03-15 16:01:05,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:05,708 INFO L470 AbstractCegarLoop]: Abstraction has 2090 states and 4904 transitions. [2022-03-15 16:01:05,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:05,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 4904 transitions. [2022-03-15 16:01:05,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:05,710 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:05,710 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:05,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-15 16:01:05,710 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:05,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:05,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1293013556, now seen corresponding path program 47 times [2022-03-15 16:01:05,710 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:05,710 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466156278] [2022-03-15 16:01:05,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:05,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:05,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:05,874 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:05,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466156278] [2022-03-15 16:01:05,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466156278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:05,874 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:05,874 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 16:01:05,874 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110291425] [2022-03-15 16:01:05,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:05,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 16:01:05,875 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:05,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 16:01:05,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:01:05,875 INFO L87 Difference]: Start difference. First operand 2090 states and 4904 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:06,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:06,000 INFO L93 Difference]: Finished difference Result 2206 states and 5148 transitions. [2022-03-15 16:01:06,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 16:01:06,000 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:06,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:06,003 INFO L225 Difference]: With dead ends: 2206 [2022-03-15 16:01:06,003 INFO L226 Difference]: Without dead ends: 2139 [2022-03-15 16:01:06,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-03-15 16:01:06,003 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 81 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:06,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 349 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:06,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2022-03-15 16:01:06,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 1999. [2022-03-15 16:01:06,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1999 states, 1998 states have (on average 2.3473473473473474) internal successors, (4690), 1998 states have internal predecessors, (4690), 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) [2022-03-15 16:01:06,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1999 states to 1999 states and 4690 transitions. [2022-03-15 16:01:06,023 INFO L78 Accepts]: Start accepts. Automaton has 1999 states and 4690 transitions. Word has length 48 [2022-03-15 16:01:06,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:06,023 INFO L470 AbstractCegarLoop]: Abstraction has 1999 states and 4690 transitions. [2022-03-15 16:01:06,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:06,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1999 states and 4690 transitions. [2022-03-15 16:01:06,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:06,025 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:06,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:06,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-15 16:01:06,026 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:06,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:06,026 INFO L85 PathProgramCache]: Analyzing trace with hash 646359478, now seen corresponding path program 48 times [2022-03-15 16:01:06,026 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:06,026 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924005279] [2022-03-15 16:01:06,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:06,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:06,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:06,184 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:06,184 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924005279] [2022-03-15 16:01:06,184 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924005279] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:06,184 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:06,184 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 16:01:06,184 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84762435] [2022-03-15 16:01:06,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:06,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 16:01:06,187 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:06,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 16:01:06,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:01:06,188 INFO L87 Difference]: Start difference. First operand 1999 states and 4690 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:06,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:06,303 INFO L93 Difference]: Finished difference Result 2239 states and 5231 transitions. [2022-03-15 16:01:06,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 16:01:06,304 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:06,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:06,306 INFO L225 Difference]: With dead ends: 2239 [2022-03-15 16:01:06,306 INFO L226 Difference]: Without dead ends: 2223 [2022-03-15 16:01:06,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:01:06,307 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 58 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:06,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 343 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:06,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2022-03-15 16:01:06,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 2083. [2022-03-15 16:01:06,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2083 states, 2082 states have (on average 2.345341018251681) internal successors, (4883), 2082 states have internal predecessors, (4883), 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) [2022-03-15 16:01:06,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 4883 transitions. [2022-03-15 16:01:06,327 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 4883 transitions. Word has length 48 [2022-03-15 16:01:06,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:06,327 INFO L470 AbstractCegarLoop]: Abstraction has 2083 states and 4883 transitions. [2022-03-15 16:01:06,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:06,327 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 4883 transitions. [2022-03-15 16:01:06,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:06,329 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:06,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:06,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-15 16:01:06,329 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:06,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:06,330 INFO L85 PathProgramCache]: Analyzing trace with hash -31238472, now seen corresponding path program 49 times [2022-03-15 16:01:06,330 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:06,330 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411876367] [2022-03-15 16:01:06,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:06,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:06,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:06,474 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:06,474 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411876367] [2022-03-15 16:01:06,474 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411876367] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:06,474 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:06,474 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 16:01:06,474 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177706704] [2022-03-15 16:01:06,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:06,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 16:01:06,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:06,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 16:01:06,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:01:06,475 INFO L87 Difference]: Start difference. First operand 2083 states and 4883 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:06,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:06,625 INFO L93 Difference]: Finished difference Result 2177 states and 5084 transitions. [2022-03-15 16:01:06,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 16:01:06,626 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:06,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:06,628 INFO L225 Difference]: With dead ends: 2177 [2022-03-15 16:01:06,628 INFO L226 Difference]: Without dead ends: 2062 [2022-03-15 16:01:06,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-03-15 16:01:06,629 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 53 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:06,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 414 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:06,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2062 states. [2022-03-15 16:01:06,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2062 to 2056. [2022-03-15 16:01:06,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2056 states, 2055 states have (on average 2.3396593673965937) internal successors, (4808), 2055 states have internal predecessors, (4808), 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) [2022-03-15 16:01:06,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 4808 transitions. [2022-03-15 16:01:06,649 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 4808 transitions. Word has length 48 [2022-03-15 16:01:06,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:06,649 INFO L470 AbstractCegarLoop]: Abstraction has 2056 states and 4808 transitions. [2022-03-15 16:01:06,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:06,649 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 4808 transitions. [2022-03-15 16:01:06,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:06,651 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:06,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:06,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-15 16:01:06,653 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:06,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:06,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1604764284, now seen corresponding path program 50 times [2022-03-15 16:01:06,653 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:06,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953716379] [2022-03-15 16:01:06,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:06,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:06,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:06,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:06,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953716379] [2022-03-15 16:01:06,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953716379] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:06,780 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:06,780 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 16:01:06,780 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560768021] [2022-03-15 16:01:06,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:06,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 16:01:06,781 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:06,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 16:01:06,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-15 16:01:06,781 INFO L87 Difference]: Start difference. First operand 2056 states and 4808 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:01:06,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:06,911 INFO L93 Difference]: Finished difference Result 2307 states and 5371 transitions. [2022-03-15 16:01:06,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 16:01:06,911 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:06,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:06,914 INFO L225 Difference]: With dead ends: 2307 [2022-03-15 16:01:06,914 INFO L226 Difference]: Without dead ends: 2261 [2022-03-15 16:01:06,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-15 16:01:06,914 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 74 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:06,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 431 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:06,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2261 states. [2022-03-15 16:01:06,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 2141. [2022-03-15 16:01:06,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2141 states, 2140 states have (on average 2.3345794392523365) internal successors, (4996), 2140 states have internal predecessors, (4996), 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) [2022-03-15 16:01:06,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2141 states to 2141 states and 4996 transitions. [2022-03-15 16:01:06,956 INFO L78 Accepts]: Start accepts. Automaton has 2141 states and 4996 transitions. Word has length 48 [2022-03-15 16:01:06,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:06,957 INFO L470 AbstractCegarLoop]: Abstraction has 2141 states and 4996 transitions. [2022-03-15 16:01:06,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:01:06,957 INFO L276 IsEmpty]: Start isEmpty. Operand 2141 states and 4996 transitions. [2022-03-15 16:01:06,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:06,959 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:06,959 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:06,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-15 16:01:06,959 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:06,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:06,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1505460094, now seen corresponding path program 51 times [2022-03-15 16:01:06,959 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:06,959 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908018374] [2022-03-15 16:01:06,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:06,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:07,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:07,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:07,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908018374] [2022-03-15 16:01:07,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908018374] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:07,121 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:07,121 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 16:01:07,121 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210873402] [2022-03-15 16:01:07,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:07,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 16:01:07,121 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:07,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 16:01:07,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-03-15 16:01:07,121 INFO L87 Difference]: Start difference. First operand 2141 states and 4996 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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) [2022-03-15 16:01:07,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:07,314 INFO L93 Difference]: Finished difference Result 2241 states and 5205 transitions. [2022-03-15 16:01:07,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 16:01:07,314 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:07,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:07,317 INFO L225 Difference]: With dead ends: 2241 [2022-03-15 16:01:07,317 INFO L226 Difference]: Without dead ends: 2098 [2022-03-15 16:01:07,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-03-15 16:01:07,318 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 96 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:07,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 411 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:07,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2022-03-15 16:01:07,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 2079. [2022-03-15 16:01:07,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2079 states, 2078 states have (on average 2.329162656400385) internal successors, (4840), 2078 states have internal predecessors, (4840), 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) [2022-03-15 16:01:07,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2079 states to 2079 states and 4840 transitions. [2022-03-15 16:01:07,342 INFO L78 Accepts]: Start accepts. Automaton has 2079 states and 4840 transitions. Word has length 48 [2022-03-15 16:01:07,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:07,343 INFO L470 AbstractCegarLoop]: Abstraction has 2079 states and 4840 transitions. [2022-03-15 16:01:07,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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) [2022-03-15 16:01:07,343 INFO L276 IsEmpty]: Start isEmpty. Operand 2079 states and 4840 transitions. [2022-03-15 16:01:07,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:07,345 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:07,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:07,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-15 16:01:07,346 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:07,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:07,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1740838370, now seen corresponding path program 52 times [2022-03-15 16:01:07,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:07,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501244622] [2022-03-15 16:01:07,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:07,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:07,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:07,529 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:07,529 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501244622] [2022-03-15 16:01:07,529 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501244622] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:07,529 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:07,529 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 16:01:07,529 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553753978] [2022-03-15 16:01:07,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:07,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 16:01:07,529 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:07,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 16:01:07,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 16:01:07,530 INFO L87 Difference]: Start difference. First operand 2079 states and 4840 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:01:07,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:07,652 INFO L93 Difference]: Finished difference Result 2347 states and 5444 transitions. [2022-03-15 16:01:07,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 16:01:07,652 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:07,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:07,655 INFO L225 Difference]: With dead ends: 2347 [2022-03-15 16:01:07,655 INFO L226 Difference]: Without dead ends: 2301 [2022-03-15 16:01:07,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 16:01:07,658 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 68 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:07,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 387 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:07,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2301 states. [2022-03-15 16:01:07,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2301 to 2174. [2022-03-15 16:01:07,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2174 states, 2173 states have (on average 2.3285780027611596) internal successors, (5060), 2173 states have internal predecessors, (5060), 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) [2022-03-15 16:01:07,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2174 states to 2174 states and 5060 transitions. [2022-03-15 16:01:07,680 INFO L78 Accepts]: Start accepts. Automaton has 2174 states and 5060 transitions. Word has length 48 [2022-03-15 16:01:07,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:07,680 INFO L470 AbstractCegarLoop]: Abstraction has 2174 states and 5060 transitions. [2022-03-15 16:01:07,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:01:07,680 INFO L276 IsEmpty]: Start isEmpty. Operand 2174 states and 5060 transitions. [2022-03-15 16:01:07,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:07,682 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:07,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:07,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-15 16:01:07,682 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:07,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:07,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1840142560, now seen corresponding path program 53 times [2022-03-15 16:01:07,683 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:07,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666867647] [2022-03-15 16:01:07,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:07,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:07,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:07,868 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:07,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666867647] [2022-03-15 16:01:07,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666867647] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:07,868 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:07,868 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 16:01:07,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412571415] [2022-03-15 16:01:07,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:07,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 16:01:07,869 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:07,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 16:01:07,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-03-15 16:01:07,869 INFO L87 Difference]: Start difference. First operand 2174 states and 5060 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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) [2022-03-15 16:01:08,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:08,089 INFO L93 Difference]: Finished difference Result 2246 states and 5200 transitions. [2022-03-15 16:01:08,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 16:01:08,090 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:08,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:08,092 INFO L225 Difference]: With dead ends: 2246 [2022-03-15 16:01:08,092 INFO L226 Difference]: Without dead ends: 2098 [2022-03-15 16:01:08,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-03-15 16:01:08,093 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 93 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:08,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 375 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 16:01:08,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2022-03-15 16:01:08,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 2080. [2022-03-15 16:01:08,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2080 states, 2079 states have (on average 2.3285233285233287) internal successors, (4841), 2079 states have internal predecessors, (4841), 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) [2022-03-15 16:01:08,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 4841 transitions. [2022-03-15 16:01:08,111 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 4841 transitions. Word has length 48 [2022-03-15 16:01:08,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:08,112 INFO L470 AbstractCegarLoop]: Abstraction has 2080 states and 4841 transitions. [2022-03-15 16:01:08,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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) [2022-03-15 16:01:08,112 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 4841 transitions. [2022-03-15 16:01:08,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:08,114 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:08,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:08,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-15 16:01:08,114 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:08,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:08,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1596159818, now seen corresponding path program 54 times [2022-03-15 16:01:08,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:08,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213934554] [2022-03-15 16:01:08,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:08,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:08,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:08,271 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:08,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213934554] [2022-03-15 16:01:08,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213934554] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:08,271 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:08,271 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 16:01:08,271 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121005954] [2022-03-15 16:01:08,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:08,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 16:01:08,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:08,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 16:01:08,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 16:01:08,272 INFO L87 Difference]: Start difference. First operand 2080 states and 4841 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:01:08,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:08,533 INFO L93 Difference]: Finished difference Result 2597 states and 5948 transitions. [2022-03-15 16:01:08,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 16:01:08,534 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:08,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:08,537 INFO L225 Difference]: With dead ends: 2597 [2022-03-15 16:01:08,537 INFO L226 Difference]: Without dead ends: 2422 [2022-03-15 16:01:08,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:01:08,537 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 123 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:08,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 699 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 16:01:08,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2422 states. [2022-03-15 16:01:08,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2422 to 2022. [2022-03-15 16:01:08,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2022 states, 2021 states have (on average 2.321622958931222) internal successors, (4692), 2021 states have internal predecessors, (4692), 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) [2022-03-15 16:01:08,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2022 states to 2022 states and 4692 transitions. [2022-03-15 16:01:08,560 INFO L78 Accepts]: Start accepts. Automaton has 2022 states and 4692 transitions. Word has length 48 [2022-03-15 16:01:08,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:08,560 INFO L470 AbstractCegarLoop]: Abstraction has 2022 states and 4692 transitions. [2022-03-15 16:01:08,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:01:08,560 INFO L276 IsEmpty]: Start isEmpty. Operand 2022 states and 4692 transitions. [2022-03-15 16:01:08,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:08,562 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:08,562 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:08,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-15 16:01:08,563 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:08,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:08,563 INFO L85 PathProgramCache]: Analyzing trace with hash 689438834, now seen corresponding path program 55 times [2022-03-15 16:01:08,563 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:08,563 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457187721] [2022-03-15 16:01:08,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:08,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:08,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:08,680 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:08,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457187721] [2022-03-15 16:01:08,680 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457187721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:08,680 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:08,680 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 16:01:08,680 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223569783] [2022-03-15 16:01:08,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:08,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 16:01:08,681 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:08,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 16:01:08,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-15 16:01:08,681 INFO L87 Difference]: Start difference. First operand 2022 states and 4692 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:01:08,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:08,829 INFO L93 Difference]: Finished difference Result 3195 states and 7387 transitions. [2022-03-15 16:01:08,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 16:01:08,829 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:08,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:08,833 INFO L225 Difference]: With dead ends: 3195 [2022-03-15 16:01:08,833 INFO L226 Difference]: Without dead ends: 2940 [2022-03-15 16:01:08,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-03-15 16:01:08,833 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 135 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:08,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 300 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:08,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2022-03-15 16:01:08,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 1892. [2022-03-15 16:01:08,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1892 states, 1891 states have (on average 2.305129561078794) internal successors, (4359), 1891 states have internal predecessors, (4359), 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) [2022-03-15 16:01:08,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1892 states to 1892 states and 4359 transitions. [2022-03-15 16:01:08,856 INFO L78 Accepts]: Start accepts. Automaton has 1892 states and 4359 transitions. Word has length 48 [2022-03-15 16:01:08,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:08,856 INFO L470 AbstractCegarLoop]: Abstraction has 1892 states and 4359 transitions. [2022-03-15 16:01:08,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:01:08,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1892 states and 4359 transitions. [2022-03-15 16:01:08,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:08,858 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:08,858 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:08,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-15 16:01:08,858 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:08,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:08,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1553864850, now seen corresponding path program 56 times [2022-03-15 16:01:08,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:08,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935932357] [2022-03-15 16:01:08,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:08,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:08,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:08,895 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:08,895 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935932357] [2022-03-15 16:01:08,895 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935932357] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:08,895 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:08,895 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 16:01:08,895 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326894422] [2022-03-15 16:01:08,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:08,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 16:01:08,896 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:08,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 16:01:08,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 16:01:08,896 INFO L87 Difference]: Start difference. First operand 1892 states and 4359 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 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) [2022-03-15 16:01:08,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:08,998 INFO L93 Difference]: Finished difference Result 1777 states and 4014 transitions. [2022-03-15 16:01:08,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 16:01:08,998 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:08,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:09,000 INFO L225 Difference]: With dead ends: 1777 [2022-03-15 16:01:09,000 INFO L226 Difference]: Without dead ends: 1297 [2022-03-15 16:01:09,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:01:09,000 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 183 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:09,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 210 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:09,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2022-03-15 16:01:09,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 1073. [2022-03-15 16:01:09,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 1072 states have (on average 2.28544776119403) internal successors, (2450), 1072 states have internal predecessors, (2450), 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) [2022-03-15 16:01:09,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 2450 transitions. [2022-03-15 16:01:09,011 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 2450 transitions. Word has length 48 [2022-03-15 16:01:09,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:09,012 INFO L470 AbstractCegarLoop]: Abstraction has 1073 states and 2450 transitions. [2022-03-15 16:01:09,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 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) [2022-03-15 16:01:09,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 2450 transitions. [2022-03-15 16:01:09,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:09,013 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:09,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:09,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-15 16:01:09,013 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:09,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:09,013 INFO L85 PathProgramCache]: Analyzing trace with hash 364926762, now seen corresponding path program 57 times [2022-03-15 16:01:09,013 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:09,013 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329684299] [2022-03-15 16:01:09,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:09,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:09,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:09,196 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:09,196 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329684299] [2022-03-15 16:01:09,196 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329684299] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:09,196 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:09,196 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 16:01:09,196 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482677936] [2022-03-15 16:01:09,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:09,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 16:01:09,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:09,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 16:01:09,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-15 16:01:09,197 INFO L87 Difference]: Start difference. First operand 1073 states and 2450 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:01:09,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:09,461 INFO L93 Difference]: Finished difference Result 1439 states and 3264 transitions. [2022-03-15 16:01:09,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 16:01:09,462 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:09,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:09,463 INFO L225 Difference]: With dead ends: 1439 [2022-03-15 16:01:09,463 INFO L226 Difference]: Without dead ends: 1167 [2022-03-15 16:01:09,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-03-15 16:01:09,464 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 115 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:09,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 480 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 16:01:09,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2022-03-15 16:01:09,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 1050. [2022-03-15 16:01:09,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1049 states have (on average 2.2631077216396567) internal successors, (2374), 1049 states have internal predecessors, (2374), 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) [2022-03-15 16:01:09,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 2374 transitions. [2022-03-15 16:01:09,473 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 2374 transitions. Word has length 48 [2022-03-15 16:01:09,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:09,473 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 2374 transitions. [2022-03-15 16:01:09,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:01:09,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 2374 transitions. [2022-03-15 16:01:09,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:09,474 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:09,474 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:09,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-15 16:01:09,474 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:09,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:09,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1544972116, now seen corresponding path program 58 times [2022-03-15 16:01:09,475 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:09,475 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516386054] [2022-03-15 16:01:09,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:09,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:09,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:09,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:09,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:09,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516386054] [2022-03-15 16:01:09,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516386054] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:09,650 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:09,651 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 16:01:09,651 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850147292] [2022-03-15 16:01:09,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:09,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 16:01:09,651 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:09,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 16:01:09,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:01:09,652 INFO L87 Difference]: Start difference. First operand 1050 states and 2374 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:09,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:09,948 INFO L93 Difference]: Finished difference Result 1452 states and 3279 transitions. [2022-03-15 16:01:09,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 16:01:09,948 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:09,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:09,950 INFO L225 Difference]: With dead ends: 1452 [2022-03-15 16:01:09,950 INFO L226 Difference]: Without dead ends: 1424 [2022-03-15 16:01:09,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:01:09,950 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 189 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:09,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 352 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:09,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2022-03-15 16:01:09,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1110. [2022-03-15 16:01:09,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 1109 states have (on average 2.2696122633002704) internal successors, (2517), 1109 states have internal predecessors, (2517), 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) [2022-03-15 16:01:09,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 2517 transitions. [2022-03-15 16:01:09,961 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 2517 transitions. Word has length 48 [2022-03-15 16:01:09,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:09,962 INFO L470 AbstractCegarLoop]: Abstraction has 1110 states and 2517 transitions. [2022-03-15 16:01:09,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:09,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 2517 transitions. [2022-03-15 16:01:09,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:09,963 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:09,963 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:09,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-15 16:01:09,963 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:09,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:09,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1644276306, now seen corresponding path program 59 times [2022-03-15 16:01:09,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:09,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552269876] [2022-03-15 16:01:09,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:09,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:10,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:10,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:10,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552269876] [2022-03-15 16:01:10,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552269876] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:10,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:10,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 16:01:10,150 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783784939] [2022-03-15 16:01:10,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:10,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 16:01:10,150 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:10,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 16:01:10,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:01:10,151 INFO L87 Difference]: Start difference. First operand 1110 states and 2517 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:10,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:10,416 INFO L93 Difference]: Finished difference Result 1460 states and 3285 transitions. [2022-03-15 16:01:10,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 16:01:10,417 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:10,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:10,418 INFO L225 Difference]: With dead ends: 1460 [2022-03-15 16:01:10,418 INFO L226 Difference]: Without dead ends: 1364 [2022-03-15 16:01:10,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:01:10,419 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 136 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:10,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 385 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:10,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2022-03-15 16:01:10,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1068. [2022-03-15 16:01:10,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 1067 states have (on average 2.2502343017806936) internal successors, (2401), 1067 states have internal predecessors, (2401), 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) [2022-03-15 16:01:10,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 2401 transitions. [2022-03-15 16:01:10,436 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 2401 transitions. Word has length 48 [2022-03-15 16:01:10,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:10,436 INFO L470 AbstractCegarLoop]: Abstraction has 1068 states and 2401 transitions. [2022-03-15 16:01:10,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:10,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 2401 transitions. [2022-03-15 16:01:10,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:10,437 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:10,437 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:10,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-15 16:01:10,438 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:10,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:10,438 INFO L85 PathProgramCache]: Analyzing trace with hash -828632370, now seen corresponding path program 60 times [2022-03-15 16:01:10,438 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:10,438 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237681845] [2022-03-15 16:01:10,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:10,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:10,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:10,622 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:10,622 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237681845] [2022-03-15 16:01:10,622 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237681845] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:10,622 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:10,622 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 16:01:10,622 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618862549] [2022-03-15 16:01:10,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:10,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 16:01:10,622 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:10,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 16:01:10,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:01:10,623 INFO L87 Difference]: Start difference. First operand 1068 states and 2401 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:10,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:10,985 INFO L93 Difference]: Finished difference Result 1315 states and 2928 transitions. [2022-03-15 16:01:10,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 16:01:10,985 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:10,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:10,987 INFO L225 Difference]: With dead ends: 1315 [2022-03-15 16:01:10,987 INFO L226 Difference]: Without dead ends: 1244 [2022-03-15 16:01:10,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-03-15 16:01:10,988 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 118 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:10,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 485 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 16:01:10,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2022-03-15 16:01:10,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 1050. [2022-03-15 16:01:10,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1049 states have (on average 2.2373689227836033) internal successors, (2347), 1049 states have internal predecessors, (2347), 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) [2022-03-15 16:01:10,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 2347 transitions. [2022-03-15 16:01:10,997 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 2347 transitions. Word has length 48 [2022-03-15 16:01:10,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:10,997 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 2347 transitions. [2022-03-15 16:01:10,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:10,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 2347 transitions. [2022-03-15 16:01:10,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:10,999 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:10,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:10,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-15 16:01:10,999 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:10,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:10,999 INFO L85 PathProgramCache]: Analyzing trace with hash 999533226, now seen corresponding path program 61 times [2022-03-15 16:01:10,999 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:10,999 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813808431] [2022-03-15 16:01:10,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:10,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:11,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:11,180 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:11,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813808431] [2022-03-15 16:01:11,180 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813808431] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:11,180 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:11,180 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 16:01:11,180 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432093754] [2022-03-15 16:01:11,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:11,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 16:01:11,181 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:11,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 16:01:11,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:01:11,181 INFO L87 Difference]: Start difference. First operand 1050 states and 2347 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:11,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:11,458 INFO L93 Difference]: Finished difference Result 1268 states and 2825 transitions. [2022-03-15 16:01:11,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 16:01:11,459 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:11,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:11,460 INFO L225 Difference]: With dead ends: 1268 [2022-03-15 16:01:11,460 INFO L226 Difference]: Without dead ends: 1206 [2022-03-15 16:01:11,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:01:11,460 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 165 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:11,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 314 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:11,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2022-03-15 16:01:11,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1036. [2022-03-15 16:01:11,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1036 states, 1035 states have (on average 2.2357487922705315) internal successors, (2314), 1035 states have internal predecessors, (2314), 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) [2022-03-15 16:01:11,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 2314 transitions. [2022-03-15 16:01:11,470 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 2314 transitions. Word has length 48 [2022-03-15 16:01:11,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:11,470 INFO L470 AbstractCegarLoop]: Abstraction has 1036 states and 2314 transitions. [2022-03-15 16:01:11,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:11,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 2314 transitions. [2022-03-15 16:01:11,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:11,471 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:11,471 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:11,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-15 16:01:11,471 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:11,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:11,471 INFO L85 PathProgramCache]: Analyzing trace with hash -998138068, now seen corresponding path program 62 times [2022-03-15 16:01:11,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:11,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728289443] [2022-03-15 16:01:11,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:11,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:11,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:11,652 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:11,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728289443] [2022-03-15 16:01:11,652 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728289443] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:11,652 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:11,652 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 16:01:11,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612489573] [2022-03-15 16:01:11,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:11,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 16:01:11,653 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:11,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 16:01:11,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:01:11,653 INFO L87 Difference]: Start difference. First operand 1036 states and 2314 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:11,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:11,946 INFO L93 Difference]: Finished difference Result 1168 states and 2613 transitions. [2022-03-15 16:01:11,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 16:01:11,946 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:11,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:11,947 INFO L225 Difference]: With dead ends: 1168 [2022-03-15 16:01:11,948 INFO L226 Difference]: Without dead ends: 1064 [2022-03-15 16:01:11,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:01:11,948 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 145 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:11,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 307 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:11,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2022-03-15 16:01:11,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 922. [2022-03-15 16:01:11,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 921 states have (on average 2.239956568946797) internal successors, (2063), 921 states have internal predecessors, (2063), 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) [2022-03-15 16:01:11,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 2063 transitions. [2022-03-15 16:01:11,956 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 2063 transitions. Word has length 48 [2022-03-15 16:01:11,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:11,956 INFO L470 AbstractCegarLoop]: Abstraction has 922 states and 2063 transitions. [2022-03-15 16:01:11,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:11,957 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 2063 transitions. [2022-03-15 16:01:11,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:11,957 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:11,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:11,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-15 16:01:11,958 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:11,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:11,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1915961824, now seen corresponding path program 63 times [2022-03-15 16:01:11,958 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:11,958 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976980903] [2022-03-15 16:01:11,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:11,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:12,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:12,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:12,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976980903] [2022-03-15 16:01:12,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976980903] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:12,075 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:12,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 16:01:12,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527761907] [2022-03-15 16:01:12,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:12,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 16:01:12,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:12,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 16:01:12,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-03-15 16:01:12,076 INFO L87 Difference]: Start difference. First operand 922 states and 2063 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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) [2022-03-15 16:01:12,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:12,213 INFO L93 Difference]: Finished difference Result 966 states and 2145 transitions. [2022-03-15 16:01:12,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 16:01:12,214 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:12,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:12,215 INFO L225 Difference]: With dead ends: 966 [2022-03-15 16:01:12,215 INFO L226 Difference]: Without dead ends: 878 [2022-03-15 16:01:12,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-03-15 16:01:12,215 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 56 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:12,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 264 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:12,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2022-03-15 16:01:12,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 878. [2022-03-15 16:01:12,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 877 states have (on average 2.231470923603193) internal successors, (1957), 877 states have internal predecessors, (1957), 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) [2022-03-15 16:01:12,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1957 transitions. [2022-03-15 16:01:12,223 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1957 transitions. Word has length 48 [2022-03-15 16:01:12,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:12,223 INFO L470 AbstractCegarLoop]: Abstraction has 878 states and 1957 transitions. [2022-03-15 16:01:12,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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) [2022-03-15 16:01:12,223 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1957 transitions. [2022-03-15 16:01:12,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:12,224 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:12,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:12,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-15 16:01:12,224 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:12,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:12,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1199569654, now seen corresponding path program 64 times [2022-03-15 16:01:12,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:12,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785079469] [2022-03-15 16:01:12,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:12,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:12,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:12,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:12,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:12,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785079469] [2022-03-15 16:01:12,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785079469] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:12,381 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:12,381 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 16:01:12,381 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336954622] [2022-03-15 16:01:12,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:12,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 16:01:12,382 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:12,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 16:01:12,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:01:12,384 INFO L87 Difference]: Start difference. First operand 878 states and 1957 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:12,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:12,484 INFO L93 Difference]: Finished difference Result 842 states and 1876 transitions. [2022-03-15 16:01:12,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 16:01:12,485 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:12,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:12,485 INFO L225 Difference]: With dead ends: 842 [2022-03-15 16:01:12,486 INFO L226 Difference]: Without dead ends: 744 [2022-03-15 16:01:12,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-03-15 16:01:12,486 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 45 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:12,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 252 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:12,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2022-03-15 16:01:12,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2022-03-15 16:01:12,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 743 states have (on average 2.2705248990578735) internal successors, (1687), 743 states have internal predecessors, (1687), 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) [2022-03-15 16:01:12,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1687 transitions. [2022-03-15 16:01:12,498 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1687 transitions. Word has length 48 [2022-03-15 16:01:12,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:12,498 INFO L470 AbstractCegarLoop]: Abstraction has 744 states and 1687 transitions. [2022-03-15 16:01:12,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:12,498 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1687 transitions. [2022-03-15 16:01:12,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:12,499 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:12,499 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:12,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-15 16:01:12,499 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:12,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:12,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1645770850, now seen corresponding path program 65 times [2022-03-15 16:01:12,500 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:12,500 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787989313] [2022-03-15 16:01:12,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:12,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:12,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:12,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:12,575 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:12,575 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787989313] [2022-03-15 16:01:12,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787989313] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:12,575 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:12,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 16:01:12,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018672803] [2022-03-15 16:01:12,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:12,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 16:01:12,576 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:12,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 16:01:12,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:01:12,576 INFO L87 Difference]: Start difference. First operand 744 states and 1687 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:01:12,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:12,650 INFO L93 Difference]: Finished difference Result 945 states and 2115 transitions. [2022-03-15 16:01:12,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 16:01:12,651 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:12,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:12,652 INFO L225 Difference]: With dead ends: 945 [2022-03-15 16:01:12,652 INFO L226 Difference]: Without dead ends: 678 [2022-03-15 16:01:12,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:01:12,652 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 101 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:12,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 237 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:12,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-03-15 16:01:12,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 570. [2022-03-15 16:01:12,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 569 states have (on average 2.2056239015817223) internal successors, (1255), 569 states have internal predecessors, (1255), 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) [2022-03-15 16:01:12,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 1255 transitions. [2022-03-15 16:01:12,657 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 1255 transitions. Word has length 48 [2022-03-15 16:01:12,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:12,657 INFO L470 AbstractCegarLoop]: Abstraction has 570 states and 1255 transitions. [2022-03-15 16:01:12,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:01:12,658 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 1255 transitions. [2022-03-15 16:01:12,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:12,658 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:12,658 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:12,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-15 16:01:12,658 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:12,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:12,659 INFO L85 PathProgramCache]: Analyzing trace with hash 957825440, now seen corresponding path program 66 times [2022-03-15 16:01:12,659 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:12,659 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302875411] [2022-03-15 16:01:12,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:12,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:12,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:12,754 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:12,754 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302875411] [2022-03-15 16:01:12,754 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302875411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:12,754 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:12,755 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 16:01:12,755 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653473114] [2022-03-15 16:01:12,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:12,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 16:01:12,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:12,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 16:01:12,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:01:12,755 INFO L87 Difference]: Start difference. First operand 570 states and 1255 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:01:12,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:12,851 INFO L93 Difference]: Finished difference Result 741 states and 1610 transitions. [2022-03-15 16:01:12,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 16:01:12,851 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:12,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:12,852 INFO L225 Difference]: With dead ends: 741 [2022-03-15 16:01:12,852 INFO L226 Difference]: Without dead ends: 713 [2022-03-15 16:01:12,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:01:12,853 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 141 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:12,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 247 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:12,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2022-03-15 16:01:12,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 554. [2022-03-15 16:01:12,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 553 states have (on average 2.189873417721519) internal successors, (1211), 553 states have internal predecessors, (1211), 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) [2022-03-15 16:01:12,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 1211 transitions. [2022-03-15 16:01:12,858 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 1211 transitions. Word has length 48 [2022-03-15 16:01:12,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:12,858 INFO L470 AbstractCegarLoop]: Abstraction has 554 states and 1211 transitions. [2022-03-15 16:01:12,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:01:12,858 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 1211 transitions. [2022-03-15 16:01:12,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:12,859 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:12,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:12,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-15 16:01:12,859 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:12,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:12,859 INFO L85 PathProgramCache]: Analyzing trace with hash 372024514, now seen corresponding path program 67 times [2022-03-15 16:01:12,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:12,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115995828] [2022-03-15 16:01:12,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:12,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:12,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:12,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:12,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:12,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115995828] [2022-03-15 16:01:12,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115995828] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:12,994 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:12,994 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 16:01:12,995 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154588013] [2022-03-15 16:01:12,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:12,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 16:01:12,995 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:12,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 16:01:12,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-15 16:01:12,995 INFO L87 Difference]: Start difference. First operand 554 states and 1211 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:01:13,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:13,240 INFO L93 Difference]: Finished difference Result 856 states and 1837 transitions. [2022-03-15 16:01:13,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 16:01:13,241 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:13,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:13,242 INFO L225 Difference]: With dead ends: 856 [2022-03-15 16:01:13,242 INFO L226 Difference]: Without dead ends: 622 [2022-03-15 16:01:13,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:01:13,242 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 189 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:13,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 404 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:13,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-03-15 16:01:13,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 478. [2022-03-15 16:01:13,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 477 states have (on average 2.169811320754717) internal successors, (1035), 477 states have internal predecessors, (1035), 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) [2022-03-15 16:01:13,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 1035 transitions. [2022-03-15 16:01:13,247 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 1035 transitions. Word has length 48 [2022-03-15 16:01:13,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:13,247 INFO L470 AbstractCegarLoop]: Abstraction has 478 states and 1035 transitions. [2022-03-15 16:01:13,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 9 states have internal predecessors, (48), 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) [2022-03-15 16:01:13,247 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 1035 transitions. [2022-03-15 16:01:13,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:13,248 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:13,248 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:13,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-15 16:01:13,248 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:13,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:13,248 INFO L85 PathProgramCache]: Analyzing trace with hash 146614590, now seen corresponding path program 68 times [2022-03-15 16:01:13,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:13,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299723850] [2022-03-15 16:01:13,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:13,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:13,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:13,307 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:13,307 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299723850] [2022-03-15 16:01:13,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299723850] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:13,307 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:13,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 16:01:13,307 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851108208] [2022-03-15 16:01:13,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:13,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 16:01:13,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:13,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 16:01:13,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:01:13,308 INFO L87 Difference]: Start difference. First operand 478 states and 1035 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:01:13,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:13,370 INFO L93 Difference]: Finished difference Result 537 states and 1139 transitions. [2022-03-15 16:01:13,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 16:01:13,370 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:13,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:13,371 INFO L225 Difference]: With dead ends: 537 [2022-03-15 16:01:13,371 INFO L226 Difference]: Without dead ends: 377 [2022-03-15 16:01:13,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:01:13,371 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 140 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:13,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 194 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:13,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-03-15 16:01:13,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 322. [2022-03-15 16:01:13,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 321 states have (on average 2.1806853582554515) internal successors, (700), 321 states have internal predecessors, (700), 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) [2022-03-15 16:01:13,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 700 transitions. [2022-03-15 16:01:13,375 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 700 transitions. Word has length 48 [2022-03-15 16:01:13,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:13,375 INFO L470 AbstractCegarLoop]: Abstraction has 322 states and 700 transitions. [2022-03-15 16:01:13,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 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) [2022-03-15 16:01:13,375 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 700 transitions. [2022-03-15 16:01:13,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:13,375 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:13,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:13,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-15 16:01:13,376 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:13,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:13,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1102275324, now seen corresponding path program 69 times [2022-03-15 16:01:13,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:13,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462432771] [2022-03-15 16:01:13,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:13,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:13,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:13,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:13,571 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:13,571 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462432771] [2022-03-15 16:01:13,571 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462432771] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:13,571 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:13,571 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 16:01:13,571 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76781330] [2022-03-15 16:01:13,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:13,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 16:01:13,571 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:13,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 16:01:13,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-03-15 16:01:13,572 INFO L87 Difference]: Start difference. First operand 322 states and 700 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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) [2022-03-15 16:01:13,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:13,771 INFO L93 Difference]: Finished difference Result 556 states and 1196 transitions. [2022-03-15 16:01:13,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 16:01:13,771 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:13,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:13,772 INFO L225 Difference]: With dead ends: 556 [2022-03-15 16:01:13,772 INFO L226 Difference]: Without dead ends: 540 [2022-03-15 16:01:13,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2022-03-15 16:01:13,772 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 120 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:13,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 333 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:13,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-03-15 16:01:13,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 353. [2022-03-15 16:01:13,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 352 states have (on average 2.147727272727273) internal successors, (756), 352 states have internal predecessors, (756), 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) [2022-03-15 16:01:13,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 756 transitions. [2022-03-15 16:01:13,777 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 756 transitions. Word has length 48 [2022-03-15 16:01:13,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:13,777 INFO L470 AbstractCegarLoop]: Abstraction has 353 states and 756 transitions. [2022-03-15 16:01:13,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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) [2022-03-15 16:01:13,777 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 756 transitions. [2022-03-15 16:01:13,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:13,777 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:13,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:13,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-15 16:01:13,777 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:13,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:13,778 INFO L85 PathProgramCache]: Analyzing trace with hash 424677374, now seen corresponding path program 70 times [2022-03-15 16:01:13,778 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:13,778 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616388567] [2022-03-15 16:01:13,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:13,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:13,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:13,887 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:13,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616388567] [2022-03-15 16:01:13,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616388567] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:13,887 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:13,887 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 16:01:13,887 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231678198] [2022-03-15 16:01:13,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:13,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 16:01:13,887 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:13,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 16:01:13,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:01:13,888 INFO L87 Difference]: Start difference. First operand 353 states and 756 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:13,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:14,000 INFO L93 Difference]: Finished difference Result 562 states and 1195 transitions. [2022-03-15 16:01:14,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 16:01:14,000 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:14,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:14,001 INFO L225 Difference]: With dead ends: 562 [2022-03-15 16:01:14,001 INFO L226 Difference]: Without dead ends: 503 [2022-03-15 16:01:14,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-03-15 16:01:14,001 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 82 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:14,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 257 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:14,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2022-03-15 16:01:14,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 345. [2022-03-15 16:01:14,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 344 states have (on average 2.136627906976744) internal successors, (735), 344 states have internal predecessors, (735), 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) [2022-03-15 16:01:14,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 735 transitions. [2022-03-15 16:01:14,005 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 735 transitions. Word has length 48 [2022-03-15 16:01:14,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:14,005 INFO L470 AbstractCegarLoop]: Abstraction has 345 states and 735 transitions. [2022-03-15 16:01:14,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:14,005 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 735 transitions. [2022-03-15 16:01:14,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:14,005 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:14,006 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:14,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-15 16:01:14,006 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:14,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:14,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1019519702, now seen corresponding path program 71 times [2022-03-15 16:01:14,006 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:14,006 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585101962] [2022-03-15 16:01:14,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:14,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:14,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:14,060 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:14,060 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585101962] [2022-03-15 16:01:14,060 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585101962] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:14,060 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:14,060 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 16:01:14,060 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760219530] [2022-03-15 16:01:14,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:14,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 16:01:14,061 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:14,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 16:01:14,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-15 16:01:14,061 INFO L87 Difference]: Start difference. First operand 345 states and 735 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 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) [2022-03-15 16:01:14,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:14,124 INFO L93 Difference]: Finished difference Result 481 states and 1013 transitions. [2022-03-15 16:01:14,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 16:01:14,124 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:14,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:14,125 INFO L225 Difference]: With dead ends: 481 [2022-03-15 16:01:14,125 INFO L226 Difference]: Without dead ends: 306 [2022-03-15 16:01:14,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:01:14,125 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 43 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:14,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 175 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:14,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-03-15 16:01:14,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2022-03-15 16:01:14,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 305 states have (on average 2.1049180327868853) internal successors, (642), 305 states have internal predecessors, (642), 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) [2022-03-15 16:01:14,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 642 transitions. [2022-03-15 16:01:14,128 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 642 transitions. Word has length 48 [2022-03-15 16:01:14,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:14,128 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 642 transitions. [2022-03-15 16:01:14,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 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) [2022-03-15 16:01:14,128 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 642 transitions. [2022-03-15 16:01:14,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:14,129 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:14,129 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:14,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-15 16:01:14,129 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:14,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:14,129 INFO L85 PathProgramCache]: Analyzing trace with hash -613847648, now seen corresponding path program 72 times [2022-03-15 16:01:14,129 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:14,129 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298530019] [2022-03-15 16:01:14,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:14,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:14,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:14,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:14,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:14,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298530019] [2022-03-15 16:01:14,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298530019] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:14,294 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:14,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 16:01:14,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043375175] [2022-03-15 16:01:14,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:14,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 16:01:14,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:14,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 16:01:14,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-03-15 16:01:14,294 INFO L87 Difference]: Start difference. First operand 306 states and 642 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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) [2022-03-15 16:01:14,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:14,411 INFO L93 Difference]: Finished difference Result 414 states and 868 transitions. [2022-03-15 16:01:14,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 16:01:14,411 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:14,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:14,412 INFO L225 Difference]: With dead ends: 414 [2022-03-15 16:01:14,412 INFO L226 Difference]: Without dead ends: 375 [2022-03-15 16:01:14,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-03-15 16:01:14,413 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 109 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:14,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 220 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:14,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-03-15 16:01:14,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 305. [2022-03-15 16:01:14,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 304 states have (on average 2.098684210526316) internal successors, (638), 304 states have internal predecessors, (638), 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) [2022-03-15 16:01:14,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 638 transitions. [2022-03-15 16:01:14,416 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 638 transitions. Word has length 48 [2022-03-15 16:01:14,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:14,416 INFO L470 AbstractCegarLoop]: Abstraction has 305 states and 638 transitions. [2022-03-15 16:01:14,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 11 states have internal predecessors, (48), 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) [2022-03-15 16:01:14,416 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 638 transitions. [2022-03-15 16:01:14,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:14,416 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:14,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:14,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-15 16:01:14,417 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:14,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:14,417 INFO L85 PathProgramCache]: Analyzing trace with hash 51338262, now seen corresponding path program 73 times [2022-03-15 16:01:14,417 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:14,417 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376318194] [2022-03-15 16:01:14,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:14,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:14,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:14,491 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:14,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376318194] [2022-03-15 16:01:14,491 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376318194] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:14,491 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:14,491 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 16:01:14,491 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119092059] [2022-03-15 16:01:14,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:14,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 16:01:14,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:14,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 16:01:14,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:01:14,492 INFO L87 Difference]: Start difference. First operand 305 states and 638 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:01:14,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:14,575 INFO L93 Difference]: Finished difference Result 472 states and 985 transitions. [2022-03-15 16:01:14,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 16:01:14,575 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:14,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:14,576 INFO L225 Difference]: With dead ends: 472 [2022-03-15 16:01:14,576 INFO L226 Difference]: Without dead ends: 456 [2022-03-15 16:01:14,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2022-03-15 16:01:14,576 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 151 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:14,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 159 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:14,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-03-15 16:01:14,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 301. [2022-03-15 16:01:14,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 300 states have (on average 2.1) internal successors, (630), 300 states have internal predecessors, (630), 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) [2022-03-15 16:01:14,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 630 transitions. [2022-03-15 16:01:14,580 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 630 transitions. Word has length 48 [2022-03-15 16:01:14,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:14,580 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 630 transitions. [2022-03-15 16:01:14,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:01:14,580 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 630 transitions. [2022-03-15 16:01:14,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:14,580 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:14,580 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:14,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-15 16:01:14,580 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:14,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:14,581 INFO L85 PathProgramCache]: Analyzing trace with hash -626259688, now seen corresponding path program 74 times [2022-03-15 16:01:14,581 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:14,581 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958598401] [2022-03-15 16:01:14,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:14,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:14,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:14,653 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:14,653 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958598401] [2022-03-15 16:01:14,653 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958598401] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:14,653 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:14,653 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 16:01:14,653 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347766238] [2022-03-15 16:01:14,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:14,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 16:01:14,653 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:14,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 16:01:14,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:01:14,654 INFO L87 Difference]: Start difference. First operand 301 states and 630 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:01:14,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:14,727 INFO L93 Difference]: Finished difference Result 444 states and 905 transitions. [2022-03-15 16:01:14,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-15 16:01:14,727 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:14,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:14,728 INFO L225 Difference]: With dead ends: 444 [2022-03-15 16:01:14,728 INFO L226 Difference]: Without dead ends: 302 [2022-03-15 16:01:14,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-03-15 16:01:14,728 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 120 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:14,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 210 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:14,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-03-15 16:01:14,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 235. [2022-03-15 16:01:14,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 234 states have (on average 2.0128205128205128) internal successors, (471), 234 states have internal predecessors, (471), 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) [2022-03-15 16:01:14,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 471 transitions. [2022-03-15 16:01:14,731 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 471 transitions. Word has length 48 [2022-03-15 16:01:14,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:14,731 INFO L470 AbstractCegarLoop]: Abstraction has 235 states and 471 transitions. [2022-03-15 16:01:14,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:01:14,731 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 471 transitions. [2022-03-15 16:01:14,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:14,731 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:14,731 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:14,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-15 16:01:14,731 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:14,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:14,732 INFO L85 PathProgramCache]: Analyzing trace with hash -307429800, now seen corresponding path program 75 times [2022-03-15 16:01:14,732 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:14,732 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598307673] [2022-03-15 16:01:14,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:14,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:14,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:14,790 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:14,790 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598307673] [2022-03-15 16:01:14,790 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598307673] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:14,790 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:14,790 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 16:01:14,790 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052656693] [2022-03-15 16:01:14,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:14,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 16:01:14,791 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:14,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 16:01:14,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:01:14,791 INFO L87 Difference]: Start difference. First operand 235 states and 471 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:01:14,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:14,880 INFO L93 Difference]: Finished difference Result 292 states and 573 transitions. [2022-03-15 16:01:14,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 16:01:14,880 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:14,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:14,880 INFO L225 Difference]: With dead ends: 292 [2022-03-15 16:01:14,880 INFO L226 Difference]: Without dead ends: 246 [2022-03-15 16:01:14,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-03-15 16:01:14,881 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 95 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:14,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 166 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:14,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-03-15 16:01:14,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 229. [2022-03-15 16:01:14,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 228 states have (on average 2.008771929824561) internal successors, (458), 228 states have internal predecessors, (458), 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) [2022-03-15 16:01:14,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 458 transitions. [2022-03-15 16:01:14,883 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 458 transitions. Word has length 48 [2022-03-15 16:01:14,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:14,883 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 458 transitions. [2022-03-15 16:01:14,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:01:14,883 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 458 transitions. [2022-03-15 16:01:14,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:14,884 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:14,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:14,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-15 16:01:14,884 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:14,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:14,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1410341568, now seen corresponding path program 76 times [2022-03-15 16:01:14,884 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:14,884 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49492351] [2022-03-15 16:01:14,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:14,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:14,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:14,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:14,971 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:14,971 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49492351] [2022-03-15 16:01:14,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49492351] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:14,971 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:14,971 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 16:01:14,971 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137228556] [2022-03-15 16:01:14,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:14,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 16:01:14,972 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:14,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 16:01:14,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:01:14,972 INFO L87 Difference]: Start difference. First operand 229 states and 458 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:01:15,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:15,052 INFO L93 Difference]: Finished difference Result 248 states and 479 transitions. [2022-03-15 16:01:15,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 16:01:15,052 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:15,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:15,053 INFO L225 Difference]: With dead ends: 248 [2022-03-15 16:01:15,053 INFO L226 Difference]: Without dead ends: 190 [2022-03-15 16:01:15,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:01:15,054 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 89 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:15,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 142 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:01:15,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-03-15 16:01:15,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 173. [2022-03-15 16:01:15,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 172 states have (on average 1.9651162790697674) internal successors, (338), 172 states have internal predecessors, (338), 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) [2022-03-15 16:01:15,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 338 transitions. [2022-03-15 16:01:15,056 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 338 transitions. Word has length 48 [2022-03-15 16:01:15,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:15,056 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 338 transitions. [2022-03-15 16:01:15,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 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) [2022-03-15 16:01:15,056 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 338 transitions. [2022-03-15 16:01:15,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-15 16:01:15,056 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:01:15,056 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:01:15,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-15 16:01:15,057 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 16:01:15,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:01:15,057 INFO L85 PathProgramCache]: Analyzing trace with hash -334974822, now seen corresponding path program 77 times [2022-03-15 16:01:15,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:01:15,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839680297] [2022-03-15 16:01:15,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:01:15,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:01:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:01:15,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:01:15,185 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:01:15,185 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839680297] [2022-03-15 16:01:15,185 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839680297] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:01:15,186 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:01:15,186 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 16:01:15,186 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485260125] [2022-03-15 16:01:15,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:01:15,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 16:01:15,186 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:01:15,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 16:01:15,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:01:15,186 INFO L87 Difference]: Start difference. First operand 173 states and 338 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:15,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:01:15,252 INFO L93 Difference]: Finished difference Result 98 states and 179 transitions. [2022-03-15 16:01:15,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 16:01:15,252 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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 48 [2022-03-15 16:01:15,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:01:15,252 INFO L225 Difference]: With dead ends: 98 [2022-03-15 16:01:15,252 INFO L226 Difference]: Without dead ends: 0 [2022-03-15 16:01:15,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-03-15 16:01:15,252 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 36 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:01:15,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 188 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 16:01:15,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-15 16:01:15,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-15 16:01:15,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-03-15 16:01:15,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-15 16:01:15,253 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2022-03-15 16:01:15,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:01:15,253 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-15 16:01:15,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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) [2022-03-15 16:01:15,253 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-15 16:01:15,253 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-15 16:01:15,259 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-15 16:01:15,260 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-15 16:01:15,260 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-15 16:01:15,260 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-15 16:01:15,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-15 16:01:15,262 INFO L732 BasicCegarLoop]: Path program histogram: [77] [2022-03-15 16:01:15,264 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 16:01:15,264 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 16:01:15,265 INFO L202 PluginConnector]: Adding new model bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 04:01:15 BasicIcfg [2022-03-15 16:01:15,265 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 16:01:15,266 INFO L158 Benchmark]: Toolchain (without parser) took 29020.76ms. Allocated memory was 215.0MB in the beginning and 701.5MB in the end (delta: 486.5MB). Free memory was 179.2MB in the beginning and 265.4MB in the end (delta: -86.2MB). Peak memory consumption was 400.0MB. Max. memory is 8.0GB. [2022-03-15 16:01:15,266 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.18ms. Allocated memory is still 215.0MB. Free memory is still 180.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 16:01:15,266 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.72ms. Allocated memory is still 215.0MB. Free memory was 179.2MB in the beginning and 177.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 16:01:15,266 INFO L158 Benchmark]: Boogie Preprocessor took 28.00ms. Allocated memory is still 215.0MB. Free memory was 177.5MB in the beginning and 176.7MB in the end (delta: 874.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 16:01:15,266 INFO L158 Benchmark]: RCFGBuilder took 235.85ms. Allocated memory is still 215.0MB. Free memory was 176.5MB in the beginning and 166.8MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-15 16:01:15,266 INFO L158 Benchmark]: TraceAbstraction took 28730.37ms. Allocated memory was 215.0MB in the beginning and 701.5MB in the end (delta: 486.5MB). Free memory was 166.2MB in the beginning and 265.4MB in the end (delta: -99.2MB). Peak memory consumption was 387.4MB. Max. memory is 8.0GB. [2022-03-15 16:01:15,267 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.18ms. Allocated memory is still 215.0MB. Free memory is still 180.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.72ms. Allocated memory is still 215.0MB. Free memory was 179.2MB in the beginning and 177.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.00ms. Allocated memory is still 215.0MB. Free memory was 177.5MB in the beginning and 176.7MB in the end (delta: 874.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 235.85ms. Allocated memory is still 215.0MB. Free memory was 176.5MB in the beginning and 166.8MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 28730.37ms. Allocated memory was 215.0MB in the beginning and 701.5MB in the end (delta: 486.5MB). Free memory was 166.2MB in the beginning and 265.4MB in the end (delta: -99.2MB). Peak memory consumption was 387.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 82]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 99 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 28.6s, OverallIterations: 77, TraceHistogramMax: 1, PathProgramHistogramMax: 77, EmptinessCheckTime: 0.3s, AutomataDifference: 15.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11532 SdHoareTripleChecker+Valid, 10.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11532 mSDsluCounter, 31162 SdHoareTripleChecker+Invalid, 8.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28447 mSDsCounter, 2590 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23018 IncrementalHoareTripleChecker+Invalid, 25608 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2590 mSolverCounterUnsat, 6110 mSDtfsCounter, 23018 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1077 GetRequests, 163 SyntacticMatches, 76 SemanticMatches, 838 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1491 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4636occurred in iteration=10, InterpolantAutomatonStates: 837, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.1s AutomataMinimizationTime, 77 MinimizatonAttempts, 46264 StatesRemovedByMinimization, 71 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 3696 NumberOfCodeBlocks, 3696 NumberOfCodeBlocksAsserted, 77 NumberOfCheckSat, 3619 ConstructedInterpolants, 0 QuantifiedInterpolants, 25658 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 77 InterpolantComputations, 77 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-15 16:01:15,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...