/usr/bin/java -Xmx16000000000 -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-dev-bc79526 [2022-01-18 05:16:29,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 05:16:29,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 05:16:29,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 05:16:29,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 05:16:29,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 05:16:29,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 05:16:29,301 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 [2022-01-18 05:16:29,316 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 05:16:29,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 05:16:29,316 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 05:16:29,316 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 05:16:29,317 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 05:16:29,317 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 05:16:29,317 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 05:16:29,317 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 05:16:29,318 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 05:16:29,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 05:16:29,318 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 05:16:29,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 05:16:29,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 05:16:29,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 05:16:29,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 05:16:29,318 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 05:16:29,318 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 05:16:29,319 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 05:16:29,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 05:16:29,319 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 05:16:29,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 05:16:29,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 05:16:29,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 05:16:29,320 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 05:16:29,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 05:16:29,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 05:16:29,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 05:16:29,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 05:16:29,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 05:16:29,322 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 05:16:29,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 05:16:29,322 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 05:16:29,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 05:16:29,322 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 05:16:29,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 05:16:29,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 05:16:29,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 05:16:29,565 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-18 05:16:29,568 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-18 05:16:29,569 INFO L432 ainManager$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 [2022-01-18 05:16:29,570 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bakery-3.wvr.bpl' [2022-01-18 05:16:29,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 05:16:29,594 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-18 05:16:29,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 05:16:29,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 05:16:29,598 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 05:16:29,607 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 18.01 05:16:29" (1/1) ... [2022-01-18 05:16:29,612 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 18.01 05:16:29" (1/1) ... [2022-01-18 05:16:29,618 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-18 05:16:29,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 05:16:29,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 05:16:29,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 05:16:29,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 05:16:29,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:16:29" (1/1) ... [2022-01-18 05:16:29,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:16:29" (1/1) ... [2022-01-18 05:16:29,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:16:29" (1/1) ... [2022-01-18 05:16:29,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:16:29" (1/1) ... [2022-01-18 05:16:29,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:16:29" (1/1) ... [2022-01-18 05:16:29,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:16:29" (1/1) ... [2022-01-18 05:16:29,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:16:29" (1/1) ... [2022-01-18 05:16:29,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 05:16:29,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 05:16:29,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 05:16:29,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 05:16:29,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:16:29" (1/1) ... [2022-01-18 05:16:29,640 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 05:16:29,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 05:16:29,660 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) [2022-01-18 05:16:29,685 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 [2022-01-18 05:16:29,698 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-01-18 05:16:29,698 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 05:16:29,699 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 05:16:29,699 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-01-18 05:16:29,699 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 05:16:29,699 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 05:16:29,699 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-01-18 05:16:29,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 05:16:29,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 05:16:29,700 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-01-18 05:16:29,700 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 05:16:29,700 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 05:16:29,700 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 05:16:29,744 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 05:16:29,745 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 05:16:29,849 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 05:16:29,855 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 05:16:29,856 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 05:16:29,857 INFO L202 PluginConnector]: Adding new model bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 05:16:29 BoogieIcfgContainer [2022-01-18 05:16:29,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 05:16:29,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 05:16:29,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 05:16:29,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 05:16:29,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 05:16:29" (1/2) ... [2022-01-18 05:16:29,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1560761b and model type bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 05:16:29, skipping insertion in model container [2022-01-18 05:16:29,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 05:16:29" (2/2) ... [2022-01-18 05:16:29,863 INFO L111 eAbstractionObserver]: Analyzing ICFG bakery-3.wvr.bpl [2022-01-18 05:16:29,867 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 05:16:29,867 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 05:16:29,867 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 05:16:29,867 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 05:16:29,902 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-18 05:16:29,932 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 05:16:29,938 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, 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 [2022-01-18 05:16:29,938 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-18 05:16:29,946 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 53 transitions, 130 flow [2022-01-18 05:16:30,120 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) [2022-01-18 05:16:30,129 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) [2022-01-18 05:16:30,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:30,159 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:30,160 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] [2022-01-18 05:16:30,161 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:30,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:30,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1471808152, now seen corresponding path program 1 times [2022-01-18 05:16:30,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:30,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326711889] [2022-01-18 05:16:30,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:30,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:30,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:30,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:30,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326711889] [2022-01-18 05:16:30,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326711889] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:30,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:30,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:16:30,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136913137] [2022-01-18 05:16:30,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:30,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:16:30,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:30,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:16:30,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:16:30,563 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) [2022-01-18 05:16:30,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:30,952 INFO L93 Difference]: Finished difference Result 4259 states and 11383 transitions. [2022-01-18 05:16:30,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 05:16:30,955 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 [2022-01-18 05:16:30,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:30,992 INFO L225 Difference]: With dead ends: 4259 [2022-01-18 05:16:30,992 INFO L226 Difference]: Without dead ends: 4067 [2022-01-18 05:16:30,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-01-18 05:16:31,001 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 [2022-01-18 05:16:31,002 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] [2022-01-18 05:16:31,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4067 states. [2022-01-18 05:16:31,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4067 to 3212. [2022-01-18 05:16:31,160 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) [2022-01-18 05:16:31,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3212 states to 3212 states and 8898 transitions. [2022-01-18 05:16:31,174 INFO L78 Accepts]: Start accepts. Automaton has 3212 states and 8898 transitions. Word has length 48 [2022-01-18 05:16:31,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:31,175 INFO L470 AbstractCegarLoop]: Abstraction has 3212 states and 8898 transitions. [2022-01-18 05:16:31,175 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) [2022-01-18 05:16:31,175 INFO L276 IsEmpty]: Start isEmpty. Operand 3212 states and 8898 transitions. [2022-01-18 05:16:31,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:31,185 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:31,185 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] [2022-01-18 05:16:31,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 05:16:31,186 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:31,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:31,187 INFO L85 PathProgramCache]: Analyzing trace with hash 315387816, now seen corresponding path program 2 times [2022-01-18 05:16:31,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:31,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212207315] [2022-01-18 05:16:31,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:31,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:31,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:31,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:31,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212207315] [2022-01-18 05:16:31,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212207315] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:31,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:31,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:16:31,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173954254] [2022-01-18 05:16:31,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:31,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:16:31,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:31,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:16:31,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:16:31,404 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) [2022-01-18 05:16:31,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:31,849 INFO L93 Difference]: Finished difference Result 5269 states and 14643 transitions. [2022-01-18 05:16:31,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 05:16:31,850 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 [2022-01-18 05:16:31,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:31,880 INFO L225 Difference]: With dead ends: 5269 [2022-01-18 05:16:31,881 INFO L226 Difference]: Without dead ends: 5269 [2022-01-18 05:16:31,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-01-18 05:16:31,888 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, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:31,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 500 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 05:16:31,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5269 states. [2022-01-18 05:16:32,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5269 to 4180. [2022-01-18 05:16:32,016 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) [2022-01-18 05:16:32,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4180 states to 4180 states and 11554 transitions. [2022-01-18 05:16:32,033 INFO L78 Accepts]: Start accepts. Automaton has 4180 states and 11554 transitions. Word has length 48 [2022-01-18 05:16:32,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:32,035 INFO L470 AbstractCegarLoop]: Abstraction has 4180 states and 11554 transitions. [2022-01-18 05:16:32,035 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) [2022-01-18 05:16:32,035 INFO L276 IsEmpty]: Start isEmpty. Operand 4180 states and 11554 transitions. [2022-01-18 05:16:32,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:32,048 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:32,048 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] [2022-01-18 05:16:32,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 05:16:32,049 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:32,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:32,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1865950614, now seen corresponding path program 3 times [2022-01-18 05:16:32,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:32,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340386388] [2022-01-18 05:16:32,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:32,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:32,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:32,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:32,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340386388] [2022-01-18 05:16:32,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340386388] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:32,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:32,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:16:32,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230326773] [2022-01-18 05:16:32,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:32,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:16:32,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:32,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:16:32,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:16:32,173 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) [2022-01-18 05:16:32,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:32,405 INFO L93 Difference]: Finished difference Result 5339 states and 14297 transitions. [2022-01-18 05:16:32,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 05:16:32,405 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 [2022-01-18 05:16:32,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:32,431 INFO L225 Difference]: With dead ends: 5339 [2022-01-18 05:16:32,431 INFO L226 Difference]: Without dead ends: 5146 [2022-01-18 05:16:32,431 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 [2022-01-18 05:16:32,437 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 [2022-01-18 05:16:32,438 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] [2022-01-18 05:16:32,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5146 states. [2022-01-18 05:16:32,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5146 to 4227. [2022-01-18 05:16:32,610 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) [2022-01-18 05:16:32,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4227 states to 4227 states and 11637 transitions. [2022-01-18 05:16:32,624 INFO L78 Accepts]: Start accepts. Automaton has 4227 states and 11637 transitions. Word has length 48 [2022-01-18 05:16:32,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:32,625 INFO L470 AbstractCegarLoop]: Abstraction has 4227 states and 11637 transitions. [2022-01-18 05:16:32,626 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) [2022-01-18 05:16:32,626 INFO L276 IsEmpty]: Start isEmpty. Operand 4227 states and 11637 transitions. [2022-01-18 05:16:32,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:32,638 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:32,639 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] [2022-01-18 05:16:32,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 05:16:32,639 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:32,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:32,640 INFO L85 PathProgramCache]: Analyzing trace with hash 258926934, now seen corresponding path program 4 times [2022-01-18 05:16:32,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:32,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175550197] [2022-01-18 05:16:32,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:32,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:32,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:32,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:32,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175550197] [2022-01-18 05:16:32,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175550197] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:32,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:32,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 05:16:32,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999033522] [2022-01-18 05:16:32,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:32,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 05:16:32,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:32,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 05:16:32,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-01-18 05:16:32,914 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) [2022-01-18 05:16:33,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:33,348 INFO L93 Difference]: Finished difference Result 6519 states and 17682 transitions. [2022-01-18 05:16:33,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 05:16:33,349 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 [2022-01-18 05:16:33,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:33,378 INFO L225 Difference]: With dead ends: 6519 [2022-01-18 05:16:33,378 INFO L226 Difference]: Without dead ends: 6267 [2022-01-18 05:16:33,378 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 [2022-01-18 05:16:33,379 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 233 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:33,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 951 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 05:16:33,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6267 states. [2022-01-18 05:16:33,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6267 to 4492. [2022-01-18 05:16:33,512 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) [2022-01-18 05:16:33,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4492 states to 4492 states and 12277 transitions. [2022-01-18 05:16:33,524 INFO L78 Accepts]: Start accepts. Automaton has 4492 states and 12277 transitions. Word has length 48 [2022-01-18 05:16:33,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:33,524 INFO L470 AbstractCegarLoop]: Abstraction has 4492 states and 12277 transitions. [2022-01-18 05:16:33,525 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) [2022-01-18 05:16:33,525 INFO L276 IsEmpty]: Start isEmpty. Operand 4492 states and 12277 transitions. [2022-01-18 05:16:33,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:33,536 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:33,536 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] [2022-01-18 05:16:33,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 05:16:33,536 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:33,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:33,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1316926228, now seen corresponding path program 5 times [2022-01-18 05:16:33,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:33,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371778501] [2022-01-18 05:16:33,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:33,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:33,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:33,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:33,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:33,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371778501] [2022-01-18 05:16:33,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371778501] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:33,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:33,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 05:16:33,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580872215] [2022-01-18 05:16:33,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:33,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 05:16:33,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:33,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 05:16:33,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-01-18 05:16:33,750 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) [2022-01-18 05:16:34,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:34,196 INFO L93 Difference]: Finished difference Result 6396 states and 17339 transitions. [2022-01-18 05:16:34,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 05:16:34,197 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 [2022-01-18 05:16:34,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:34,265 INFO L225 Difference]: With dead ends: 6396 [2022-01-18 05:16:34,265 INFO L226 Difference]: Without dead ends: 5955 [2022-01-18 05:16:34,266 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 [2022-01-18 05:16:34,266 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 205 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:34,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 1087 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 05:16:34,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5955 states. [2022-01-18 05:16:34,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5955 to 4243. [2022-01-18 05:16:34,354 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) [2022-01-18 05:16:34,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4243 states to 4243 states and 11653 transitions. [2022-01-18 05:16:34,366 INFO L78 Accepts]: Start accepts. Automaton has 4243 states and 11653 transitions. Word has length 48 [2022-01-18 05:16:34,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:34,366 INFO L470 AbstractCegarLoop]: Abstraction has 4243 states and 11653 transitions. [2022-01-18 05:16:34,366 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) [2022-01-18 05:16:34,366 INFO L276 IsEmpty]: Start isEmpty. Operand 4243 states and 11653 transitions. [2022-01-18 05:16:34,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:34,377 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:34,377 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] [2022-01-18 05:16:34,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 05:16:34,377 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:34,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:34,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1361135156, now seen corresponding path program 6 times [2022-01-18 05:16:34,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:34,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446697114] [2022-01-18 05:16:34,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:34,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:34,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:34,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:34,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446697114] [2022-01-18 05:16:34,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446697114] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:34,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:34,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 05:16:34,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719634325] [2022-01-18 05:16:34,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:34,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 05:16:34,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:34,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 05:16:34,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 05:16:34,399 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) [2022-01-18 05:16:34,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:34,423 INFO L93 Difference]: Finished difference Result 4195 states and 11359 transitions. [2022-01-18 05:16:34,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 05:16:34,423 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 [2022-01-18 05:16:34,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:34,434 INFO L225 Difference]: With dead ends: 4195 [2022-01-18 05:16:34,434 INFO L226 Difference]: Without dead ends: 4183 [2022-01-18 05:16:34,435 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 [2022-01-18 05:16:34,435 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 [2022-01-18 05:16:34,436 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] [2022-01-18 05:16:34,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4183 states. [2022-01-18 05:16:34,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4183 to 4183. [2022-01-18 05:16:34,510 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) [2022-01-18 05:16:34,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4183 states to 4183 states and 11326 transitions. [2022-01-18 05:16:34,520 INFO L78 Accepts]: Start accepts. Automaton has 4183 states and 11326 transitions. Word has length 48 [2022-01-18 05:16:34,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:34,520 INFO L470 AbstractCegarLoop]: Abstraction has 4183 states and 11326 transitions. [2022-01-18 05:16:34,520 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) [2022-01-18 05:16:34,520 INFO L276 IsEmpty]: Start isEmpty. Operand 4183 states and 11326 transitions. [2022-01-18 05:16:34,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:34,530 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:34,530 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] [2022-01-18 05:16:34,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 05:16:34,531 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:34,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:34,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1666269088, now seen corresponding path program 7 times [2022-01-18 05:16:34,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:34,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112448075] [2022-01-18 05:16:34,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:34,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:34,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:34,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:34,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:34,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112448075] [2022-01-18 05:16:34,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112448075] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:34,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:34,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 05:16:34,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299552643] [2022-01-18 05:16:34,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:34,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 05:16:34,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:34,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 05:16:34,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:16:34,683 INFO L87 Difference]: Start difference. First operand 4183 states and 11326 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) [2022-01-18 05:16:34,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:34,937 INFO L93 Difference]: Finished difference Result 4936 states and 13167 transitions. [2022-01-18 05:16:34,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 05:16:34,938 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 [2022-01-18 05:16:34,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:34,949 INFO L225 Difference]: With dead ends: 4936 [2022-01-18 05:16:34,949 INFO L226 Difference]: Without dead ends: 4673 [2022-01-18 05:16:34,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-01-18 05:16:34,951 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 94 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:34,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 531 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:16:34,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4673 states. [2022-01-18 05:16:35,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4673 to 4123. [2022-01-18 05:16:35,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4123 states, 4122 states have (on average 2.7098495875788453) internal successors, (11170), 4122 states have internal predecessors, (11170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:35,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4123 states to 4123 states and 11170 transitions. [2022-01-18 05:16:35,039 INFO L78 Accepts]: Start accepts. Automaton has 4123 states and 11170 transitions. Word has length 48 [2022-01-18 05:16:35,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:35,039 INFO L470 AbstractCegarLoop]: Abstraction has 4123 states and 11170 transitions. [2022-01-18 05:16:35,039 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) [2022-01-18 05:16:35,039 INFO L276 IsEmpty]: Start isEmpty. Operand 4123 states and 11170 transitions. [2022-01-18 05:16:35,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:35,047 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:35,047 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] [2022-01-18 05:16:35,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 05:16:35,047 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:35,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:35,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1335436040, now seen corresponding path program 8 times [2022-01-18 05:16:35,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:35,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538432489] [2022-01-18 05:16:35,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:35,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:35,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:35,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:35,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:35,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538432489] [2022-01-18 05:16:35,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538432489] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:35,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:35,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 05:16:35,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740018061] [2022-01-18 05:16:35,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:35,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 05:16:35,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:35,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 05:16:35,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 05:16:35,090 INFO L87 Difference]: Start difference. First operand 4123 states and 11170 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) [2022-01-18 05:16:35,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:35,113 INFO L93 Difference]: Finished difference Result 4069 states and 10790 transitions. [2022-01-18 05:16:35,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 05:16:35,114 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 [2022-01-18 05:16:35,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:35,121 INFO L225 Difference]: With dead ends: 4069 [2022-01-18 05:16:35,121 INFO L226 Difference]: Without dead ends: 4069 [2022-01-18 05:16:35,121 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 [2022-01-18 05:16:35,122 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 [2022-01-18 05:16:35,122 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] [2022-01-18 05:16:35,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4069 states. [2022-01-18 05:16:35,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4069 to 4069. [2022-01-18 05:16:35,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4069 states, 4068 states have (on average 2.652409046214356) internal successors, (10790), 4068 states have internal predecessors, (10790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:35,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4069 states to 4069 states and 10790 transitions. [2022-01-18 05:16:35,188 INFO L78 Accepts]: Start accepts. Automaton has 4069 states and 10790 transitions. Word has length 48 [2022-01-18 05:16:35,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:35,189 INFO L470 AbstractCegarLoop]: Abstraction has 4069 states and 10790 transitions. [2022-01-18 05:16:35,189 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) [2022-01-18 05:16:35,189 INFO L276 IsEmpty]: Start isEmpty. Operand 4069 states and 10790 transitions. [2022-01-18 05:16:35,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:35,196 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:35,196 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] [2022-01-18 05:16:35,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 05:16:35,196 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:35,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:35,197 INFO L85 PathProgramCache]: Analyzing trace with hash 295340824, now seen corresponding path program 9 times [2022-01-18 05:16:35,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:35,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333312832] [2022-01-18 05:16:35,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:35,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:35,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:35,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:35,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333312832] [2022-01-18 05:16:35,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333312832] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:35,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:35,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 05:16:35,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556457309] [2022-01-18 05:16:35,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:35,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 05:16:35,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:35,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 05:16:35,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-01-18 05:16:35,381 INFO L87 Difference]: Start difference. First operand 4069 states and 10790 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) [2022-01-18 05:16:35,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:35,885 INFO L93 Difference]: Finished difference Result 5461 states and 14265 transitions. [2022-01-18 05:16:35,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 05:16:35,891 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 [2022-01-18 05:16:35,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:35,901 INFO L225 Difference]: With dead ends: 5461 [2022-01-18 05:16:35,902 INFO L226 Difference]: Without dead ends: 4771 [2022-01-18 05:16:35,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2022-01-18 05:16:35,904 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 238 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:35,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 1006 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 05:16:35,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4771 states. [2022-01-18 05:16:35,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4771 to 4096. [2022-01-18 05:16:35,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4096 states, 4095 states have (on average 2.645177045177045) internal successors, (10832), 4095 states have internal predecessors, (10832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:35,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4096 states to 4096 states and 10832 transitions. [2022-01-18 05:16:35,977 INFO L78 Accepts]: Start accepts. Automaton has 4096 states and 10832 transitions. Word has length 48 [2022-01-18 05:16:35,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:35,978 INFO L470 AbstractCegarLoop]: Abstraction has 4096 states and 10832 transitions. [2022-01-18 05:16:35,978 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) [2022-01-18 05:16:35,978 INFO L276 IsEmpty]: Start isEmpty. Operand 4096 states and 10832 transitions. [2022-01-18 05:16:35,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:35,986 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:35,986 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] [2022-01-18 05:16:35,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 05:16:35,986 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:35,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:35,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1370634948, now seen corresponding path program 10 times [2022-01-18 05:16:35,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:35,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489865747] [2022-01-18 05:16:35,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:35,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:36,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:36,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:36,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489865747] [2022-01-18 05:16:36,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489865747] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:36,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:36,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 05:16:36,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335460194] [2022-01-18 05:16:36,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:36,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 05:16:36,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:36,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 05:16:36,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:16:36,121 INFO L87 Difference]: Start difference. First operand 4096 states and 10832 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) [2022-01-18 05:16:36,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:36,400 INFO L93 Difference]: Finished difference Result 5181 states and 13412 transitions. [2022-01-18 05:16:36,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 05:16:36,400 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 [2022-01-18 05:16:36,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:36,411 INFO L225 Difference]: With dead ends: 5181 [2022-01-18 05:16:36,411 INFO L226 Difference]: Without dead ends: 4981 [2022-01-18 05:16:36,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:16:36,412 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 99 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:36,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 612 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 05:16:36,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4981 states. [2022-01-18 05:16:36,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4981 to 4118. [2022-01-18 05:16:36,477 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) [2022-01-18 05:16:36,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4118 states to 4118 states and 10879 transitions. [2022-01-18 05:16:36,486 INFO L78 Accepts]: Start accepts. Automaton has 4118 states and 10879 transitions. Word has length 48 [2022-01-18 05:16:36,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:36,487 INFO L470 AbstractCegarLoop]: Abstraction has 4118 states and 10879 transitions. [2022-01-18 05:16:36,487 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) [2022-01-18 05:16:36,487 INFO L276 IsEmpty]: Start isEmpty. Operand 4118 states and 10879 transitions. [2022-01-18 05:16:36,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:36,494 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:36,494 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] [2022-01-18 05:16:36,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 05:16:36,495 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:36,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:36,495 INFO L85 PathProgramCache]: Analyzing trace with hash -553975100, now seen corresponding path program 11 times [2022-01-18 05:16:36,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:36,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679249858] [2022-01-18 05:16:36,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:36,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:36,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:36,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:36,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679249858] [2022-01-18 05:16:36,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679249858] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:36,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:36,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 05:16:36,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158302207] [2022-01-18 05:16:36,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:36,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 05:16:36,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:36,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 05:16:36,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:16:36,662 INFO L87 Difference]: Start difference. First operand 4118 states and 10879 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) [2022-01-18 05:16:37,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:37,060 INFO L93 Difference]: Finished difference Result 8210 states and 22046 transitions. [2022-01-18 05:16:37,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 05:16:37,060 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 [2022-01-18 05:16:37,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:37,078 INFO L225 Difference]: With dead ends: 8210 [2022-01-18 05:16:37,078 INFO L226 Difference]: Without dead ends: 8154 [2022-01-18 05:16:37,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=246, Unknown=0, NotChecked=0, Total=380 [2022-01-18 05:16:37,079 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 295 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:37,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 444 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:16:37,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8154 states. [2022-01-18 05:16:37,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8154 to 5049. [2022-01-18 05:16:37,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5049 states, 5048 states have (on average 2.658082408874802) internal successors, (13418), 5048 states have internal predecessors, (13418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:37,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5049 states to 5049 states and 13418 transitions. [2022-01-18 05:16:37,244 INFO L78 Accepts]: Start accepts. Automaton has 5049 states and 13418 transitions. Word has length 48 [2022-01-18 05:16:37,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:37,244 INFO L470 AbstractCegarLoop]: Abstraction has 5049 states and 13418 transitions. [2022-01-18 05:16:37,245 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) [2022-01-18 05:16:37,245 INFO L276 IsEmpty]: Start isEmpty. Operand 5049 states and 13418 transitions. [2022-01-18 05:16:37,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:37,252 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:37,252 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] [2022-01-18 05:16:37,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 05:16:37,253 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:37,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:37,253 INFO L85 PathProgramCache]: Analyzing trace with hash 747293282, now seen corresponding path program 12 times [2022-01-18 05:16:37,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:37,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944939203] [2022-01-18 05:16:37,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:37,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:37,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:37,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:37,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944939203] [2022-01-18 05:16:37,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944939203] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:37,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:37,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 05:16:37,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381969658] [2022-01-18 05:16:37,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:37,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 05:16:37,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:37,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 05:16:37,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:16:37,413 INFO L87 Difference]: Start difference. First operand 5049 states and 13418 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) [2022-01-18 05:16:38,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:38,017 INFO L93 Difference]: Finished difference Result 11648 states and 30689 transitions. [2022-01-18 05:16:38,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 05:16:38,017 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 [2022-01-18 05:16:38,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:38,044 INFO L225 Difference]: With dead ends: 11648 [2022-01-18 05:16:38,044 INFO L226 Difference]: Without dead ends: 11150 [2022-01-18 05:16:38,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-01-18 05:16:38,045 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 415 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:38,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 767 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 05:16:38,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11150 states. [2022-01-18 05:16:38,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11150 to 5804. [2022-01-18 05:16:38,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5804 states, 5803 states have (on average 2.6551783560227467) internal successors, (15408), 5803 states have internal predecessors, (15408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:38,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5804 states to 5804 states and 15408 transitions. [2022-01-18 05:16:38,183 INFO L78 Accepts]: Start accepts. Automaton has 5804 states and 15408 transitions. Word has length 48 [2022-01-18 05:16:38,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:38,183 INFO L470 AbstractCegarLoop]: Abstraction has 5804 states and 15408 transitions. [2022-01-18 05:16:38,183 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) [2022-01-18 05:16:38,183 INFO L276 IsEmpty]: Start isEmpty. Operand 5804 states and 15408 transitions. [2022-01-18 05:16:38,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:38,193 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:38,193 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] [2022-01-18 05:16:38,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 05:16:38,194 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:38,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:38,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1347166720, now seen corresponding path program 13 times [2022-01-18 05:16:38,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:38,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87637885] [2022-01-18 05:16:38,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:38,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:38,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:38,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:38,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87637885] [2022-01-18 05:16:38,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87637885] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:38,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:38,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 05:16:38,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658136359] [2022-01-18 05:16:38,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:38,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 05:16:38,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:38,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 05:16:38,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:16:38,332 INFO L87 Difference]: Start difference. First operand 5804 states and 15408 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) [2022-01-18 05:16:38,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:38,720 INFO L93 Difference]: Finished difference Result 9870 states and 26315 transitions. [2022-01-18 05:16:38,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 05:16:38,721 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 [2022-01-18 05:16:38,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:38,733 INFO L225 Difference]: With dead ends: 9870 [2022-01-18 05:16:38,734 INFO L226 Difference]: Without dead ends: 9834 [2022-01-18 05:16:38,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=221, Unknown=0, NotChecked=0, Total=342 [2022-01-18 05:16:38,735 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 327 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:38,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 497 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:16:38,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9834 states. [2022-01-18 05:16:38,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9834 to 5331. [2022-01-18 05:16:38,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.646904315196998) internal successors, (14108), 5330 states have internal predecessors, (14108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:38,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 14108 transitions. [2022-01-18 05:16:38,884 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 14108 transitions. Word has length 48 [2022-01-18 05:16:38,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:38,884 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 14108 transitions. [2022-01-18 05:16:38,884 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) [2022-01-18 05:16:38,884 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 14108 transitions. [2022-01-18 05:16:38,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:38,893 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:38,894 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] [2022-01-18 05:16:38,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 05:16:38,894 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:38,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:38,894 INFO L85 PathProgramCache]: Analyzing trace with hash -45898338, now seen corresponding path program 14 times [2022-01-18 05:16:38,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:38,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192033366] [2022-01-18 05:16:38,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:38,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:38,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:39,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:39,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:39,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192033366] [2022-01-18 05:16:39,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192033366] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:39,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:39,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 05:16:39,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600267102] [2022-01-18 05:16:39,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:39,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 05:16:39,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:39,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 05:16:39,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:16:39,039 INFO L87 Difference]: Start difference. First operand 5331 states and 14108 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) [2022-01-18 05:16:39,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:39,562 INFO L93 Difference]: Finished difference Result 8998 states and 23221 transitions. [2022-01-18 05:16:39,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-18 05:16:39,562 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 [2022-01-18 05:16:39,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:39,573 INFO L225 Difference]: With dead ends: 8998 [2022-01-18 05:16:39,573 INFO L226 Difference]: Without dead ends: 8501 [2022-01-18 05:16:39,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2022-01-18 05:16:39,574 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 381 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:39,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [381 Valid, 785 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 05:16:39,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8501 states. [2022-01-18 05:16:39,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8501 to 5351. [2022-01-18 05:16:39,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5351 states, 5350 states have (on average 2.6370093457943926) internal successors, (14108), 5350 states have internal predecessors, (14108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:39,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5351 states to 5351 states and 14108 transitions. [2022-01-18 05:16:39,704 INFO L78 Accepts]: Start accepts. Automaton has 5351 states and 14108 transitions. Word has length 48 [2022-01-18 05:16:39,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:39,704 INFO L470 AbstractCegarLoop]: Abstraction has 5351 states and 14108 transitions. [2022-01-18 05:16:39,704 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) [2022-01-18 05:16:39,705 INFO L276 IsEmpty]: Start isEmpty. Operand 5351 states and 14108 transitions. [2022-01-18 05:16:39,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:39,719 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:39,719 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] [2022-01-18 05:16:39,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 05:16:39,720 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:39,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:39,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1579103546, now seen corresponding path program 15 times [2022-01-18 05:16:39,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:39,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908304458] [2022-01-18 05:16:39,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:39,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:39,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:39,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:39,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908304458] [2022-01-18 05:16:39,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908304458] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:39,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:39,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 05:16:39,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736359975] [2022-01-18 05:16:39,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:39,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 05:16:39,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:39,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 05:16:39,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-18 05:16:39,872 INFO L87 Difference]: Start difference. First operand 5351 states and 14108 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) [2022-01-18 05:16:40,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:40,183 INFO L93 Difference]: Finished difference Result 6555 states and 17126 transitions. [2022-01-18 05:16:40,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 05:16:40,184 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 [2022-01-18 05:16:40,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:40,191 INFO L225 Difference]: With dead ends: 6555 [2022-01-18 05:16:40,191 INFO L226 Difference]: Without dead ends: 6445 [2022-01-18 05:16:40,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-01-18 05:16:40,192 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 148 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:40,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 668 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:16:40,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6445 states. [2022-01-18 05:16:40,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6445 to 5348. [2022-01-18 05:16:40,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5348 states, 5347 states have (on average 2.6364316439124744) internal successors, (14097), 5347 states have internal predecessors, (14097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:40,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5348 states to 5348 states and 14097 transitions. [2022-01-18 05:16:40,300 INFO L78 Accepts]: Start accepts. Automaton has 5348 states and 14097 transitions. Word has length 48 [2022-01-18 05:16:40,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:40,300 INFO L470 AbstractCegarLoop]: Abstraction has 5348 states and 14097 transitions. [2022-01-18 05:16:40,301 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) [2022-01-18 05:16:40,301 INFO L276 IsEmpty]: Start isEmpty. Operand 5348 states and 14097 transitions. [2022-01-18 05:16:40,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:40,309 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:40,309 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] [2022-01-18 05:16:40,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 05:16:40,309 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:40,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:40,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1293913202, now seen corresponding path program 16 times [2022-01-18 05:16:40,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:40,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336331681] [2022-01-18 05:16:40,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:40,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:40,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:40,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:40,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336331681] [2022-01-18 05:16:40,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336331681] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:40,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:40,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 05:16:40,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077717935] [2022-01-18 05:16:40,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:40,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 05:16:40,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:40,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 05:16:40,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:16:40,445 INFO L87 Difference]: Start difference. First operand 5348 states and 14097 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) [2022-01-18 05:16:40,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:40,713 INFO L93 Difference]: Finished difference Result 6530 states and 17001 transitions. [2022-01-18 05:16:40,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 05:16:40,713 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 [2022-01-18 05:16:40,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:40,722 INFO L225 Difference]: With dead ends: 6530 [2022-01-18 05:16:40,722 INFO L226 Difference]: Without dead ends: 6530 [2022-01-18 05:16:40,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-01-18 05:16:40,723 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 151 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:40,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 455 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:16:40,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6530 states. [2022-01-18 05:16:40,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6530 to 5760. [2022-01-18 05:16:40,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5760 states, 5759 states have (on average 2.6209411356138217) internal successors, (15094), 5759 states have internal predecessors, (15094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:40,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5760 states to 5760 states and 15094 transitions. [2022-01-18 05:16:40,821 INFO L78 Accepts]: Start accepts. Automaton has 5760 states and 15094 transitions. Word has length 48 [2022-01-18 05:16:40,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:40,822 INFO L470 AbstractCegarLoop]: Abstraction has 5760 states and 15094 transitions. [2022-01-18 05:16:40,822 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) [2022-01-18 05:16:40,822 INFO L276 IsEmpty]: Start isEmpty. Operand 5760 states and 15094 transitions. [2022-01-18 05:16:40,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:40,829 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:40,830 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] [2022-01-18 05:16:40,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 05:16:40,830 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:40,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:40,830 INFO L85 PathProgramCache]: Analyzing trace with hash -177172490, now seen corresponding path program 17 times [2022-01-18 05:16:40,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:40,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719080026] [2022-01-18 05:16:40,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:40,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:40,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:40,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:40,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719080026] [2022-01-18 05:16:40,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719080026] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:40,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:40,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 05:16:40,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487493076] [2022-01-18 05:16:40,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:40,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 05:16:40,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:40,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 05:16:40,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-01-18 05:16:40,961 INFO L87 Difference]: Start difference. First operand 5760 states and 15094 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) [2022-01-18 05:16:41,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:41,174 INFO L93 Difference]: Finished difference Result 6338 states and 16514 transitions. [2022-01-18 05:16:41,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 05:16:41,175 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 [2022-01-18 05:16:41,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:41,182 INFO L225 Difference]: With dead ends: 6338 [2022-01-18 05:16:41,182 INFO L226 Difference]: Without dead ends: 6338 [2022-01-18 05:16:41,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-01-18 05:16:41,182 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 140 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:41,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 551 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:16:41,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6338 states. [2022-01-18 05:16:41,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6338 to 5670. [2022-01-18 05:16:41,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5670 states, 5669 states have (on average 2.6198624095960485) internal successors, (14852), 5669 states have internal predecessors, (14852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:41,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5670 states to 5670 states and 14852 transitions. [2022-01-18 05:16:41,280 INFO L78 Accepts]: Start accepts. Automaton has 5670 states and 14852 transitions. Word has length 48 [2022-01-18 05:16:41,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:41,281 INFO L470 AbstractCegarLoop]: Abstraction has 5670 states and 14852 transitions. [2022-01-18 05:16:41,281 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) [2022-01-18 05:16:41,281 INFO L276 IsEmpty]: Start isEmpty. Operand 5670 states and 14852 transitions. [2022-01-18 05:16:41,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:41,287 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:41,287 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] [2022-01-18 05:16:41,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 05:16:41,288 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:41,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:41,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1316938584, now seen corresponding path program 18 times [2022-01-18 05:16:41,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:41,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817247777] [2022-01-18 05:16:41,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:41,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:41,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:41,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:41,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817247777] [2022-01-18 05:16:41,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817247777] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:41,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:41,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 05:16:41,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144096997] [2022-01-18 05:16:41,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:41,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 05:16:41,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:41,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 05:16:41,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-01-18 05:16:41,418 INFO L87 Difference]: Start difference. First operand 5670 states and 14852 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) [2022-01-18 05:16:41,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:41,738 INFO L93 Difference]: Finished difference Result 6546 states and 16992 transitions. [2022-01-18 05:16:41,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 05:16:41,738 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 [2022-01-18 05:16:41,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:41,745 INFO L225 Difference]: With dead ends: 6546 [2022-01-18 05:16:41,745 INFO L226 Difference]: Without dead ends: 6321 [2022-01-18 05:16:41,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-01-18 05:16:41,746 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 175 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:41,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 725 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 05:16:41,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6321 states. [2022-01-18 05:16:41,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6321 to 5544. [2022-01-18 05:16:41,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5544 states, 5543 states have (on average 2.621143784953996) internal successors, (14529), 5543 states have internal predecessors, (14529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:41,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5544 states to 5544 states and 14529 transitions. [2022-01-18 05:16:41,814 INFO L78 Accepts]: Start accepts. Automaton has 5544 states and 14529 transitions. Word has length 48 [2022-01-18 05:16:41,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:41,814 INFO L470 AbstractCegarLoop]: Abstraction has 5544 states and 14529 transitions. [2022-01-18 05:16:41,815 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) [2022-01-18 05:16:41,815 INFO L276 IsEmpty]: Start isEmpty. Operand 5544 states and 14529 transitions. [2022-01-18 05:16:41,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:41,822 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:41,822 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] [2022-01-18 05:16:41,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 05:16:41,822 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:41,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:41,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1828987838, now seen corresponding path program 19 times [2022-01-18 05:16:41,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:41,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565373951] [2022-01-18 05:16:41,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:41,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:41,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:41,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:41,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565373951] [2022-01-18 05:16:41,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565373951] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:41,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:41,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:16:41,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217437866] [2022-01-18 05:16:41,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:41,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:16:41,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:41,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:16:41,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:16:41,884 INFO L87 Difference]: Start difference. First operand 5544 states and 14529 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) [2022-01-18 05:16:42,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:42,037 INFO L93 Difference]: Finished difference Result 6928 states and 17758 transitions. [2022-01-18 05:16:42,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 05:16:42,037 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 [2022-01-18 05:16:42,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:42,047 INFO L225 Difference]: With dead ends: 6928 [2022-01-18 05:16:42,047 INFO L226 Difference]: Without dead ends: 6370 [2022-01-18 05:16:42,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2022-01-18 05:16:42,048 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 188 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:42,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 265 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:42,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6370 states. [2022-01-18 05:16:42,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6370 to 4622. [2022-01-18 05:16:42,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4622 states, 4621 states have (on average 2.566111231335209) internal successors, (11858), 4621 states have internal predecessors, (11858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:42,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4622 states to 4622 states and 11858 transitions. [2022-01-18 05:16:42,113 INFO L78 Accepts]: Start accepts. Automaton has 4622 states and 11858 transitions. Word has length 48 [2022-01-18 05:16:42,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:42,114 INFO L470 AbstractCegarLoop]: Abstraction has 4622 states and 11858 transitions. [2022-01-18 05:16:42,114 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) [2022-01-18 05:16:42,114 INFO L276 IsEmpty]: Start isEmpty. Operand 4622 states and 11858 transitions. [2022-01-18 05:16:42,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:42,120 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:42,120 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] [2022-01-18 05:16:42,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 05:16:42,120 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:42,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:42,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1131191936, now seen corresponding path program 20 times [2022-01-18 05:16:42,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:42,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131691256] [2022-01-18 05:16:42,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:42,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:42,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:42,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:42,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:42,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131691256] [2022-01-18 05:16:42,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131691256] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:42,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:42,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:16:42,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831187127] [2022-01-18 05:16:42,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:42,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:16:42,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:42,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:16:42,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:16:42,247 INFO L87 Difference]: Start difference. First operand 4622 states and 11858 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) [2022-01-18 05:16:42,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:42,474 INFO L93 Difference]: Finished difference Result 7191 states and 18346 transitions. [2022-01-18 05:16:42,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 05:16:42,475 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 [2022-01-18 05:16:42,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:42,483 INFO L225 Difference]: With dead ends: 7191 [2022-01-18 05:16:42,483 INFO L226 Difference]: Without dead ends: 7072 [2022-01-18 05:16:42,483 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 [2022-01-18 05:16:42,484 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 332 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:42,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 299 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:16:42,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7072 states. [2022-01-18 05:16:42,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7072 to 4582. [2022-01-18 05:16:42,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4582 states, 4581 states have (on average 2.5660336171141673) internal successors, (11755), 4581 states have internal predecessors, (11755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:42,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4582 states to 4582 states and 11755 transitions. [2022-01-18 05:16:42,538 INFO L78 Accepts]: Start accepts. Automaton has 4582 states and 11755 transitions. Word has length 48 [2022-01-18 05:16:42,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:42,539 INFO L470 AbstractCegarLoop]: Abstraction has 4582 states and 11755 transitions. [2022-01-18 05:16:42,539 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) [2022-01-18 05:16:42,539 INFO L276 IsEmpty]: Start isEmpty. Operand 4582 states and 11755 transitions. [2022-01-18 05:16:42,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:42,545 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:42,545 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] [2022-01-18 05:16:42,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 05:16:42,545 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:42,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:42,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1924383556, now seen corresponding path program 21 times [2022-01-18 05:16:42,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:42,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325409759] [2022-01-18 05:16:42,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:42,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:42,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:42,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:42,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:42,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325409759] [2022-01-18 05:16:42,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325409759] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:42,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:42,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:16:42,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524694106] [2022-01-18 05:16:42,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:42,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:16:42,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:42,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:16:42,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:16:42,650 INFO L87 Difference]: Start difference. First operand 4582 states and 11755 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) [2022-01-18 05:16:42,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:42,926 INFO L93 Difference]: Finished difference Result 6635 states and 16818 transitions. [2022-01-18 05:16:42,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 05:16:42,927 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 [2022-01-18 05:16:42,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:42,937 INFO L225 Difference]: With dead ends: 6635 [2022-01-18 05:16:42,937 INFO L226 Difference]: Without dead ends: 6505 [2022-01-18 05:16:42,938 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 [2022-01-18 05:16:42,941 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 371 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:42,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [371 Valid, 316 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:16:42,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6505 states. [2022-01-18 05:16:43,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6505 to 4456. [2022-01-18 05:16:43,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4456 states, 4455 states have (on average 2.5681257014590346) internal successors, (11441), 4455 states have internal predecessors, (11441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:43,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4456 states to 4456 states and 11441 transitions. [2022-01-18 05:16:43,023 INFO L78 Accepts]: Start accepts. Automaton has 4456 states and 11441 transitions. Word has length 48 [2022-01-18 05:16:43,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:43,023 INFO L470 AbstractCegarLoop]: Abstraction has 4456 states and 11441 transitions. [2022-01-18 05:16:43,023 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) [2022-01-18 05:16:43,024 INFO L276 IsEmpty]: Start isEmpty. Operand 4456 states and 11441 transitions. [2022-01-18 05:16:43,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:43,031 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:43,031 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] [2022-01-18 05:16:43,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 05:16:43,031 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:43,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:43,033 INFO L85 PathProgramCache]: Analyzing trace with hash 459405858, now seen corresponding path program 22 times [2022-01-18 05:16:43,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:43,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635172023] [2022-01-18 05:16:43,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:43,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:43,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:43,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:43,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:43,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635172023] [2022-01-18 05:16:43,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635172023] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:43,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:43,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:16:43,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049308218] [2022-01-18 05:16:43,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:43,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:16:43,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:43,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:16:43,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:16:43,140 INFO L87 Difference]: Start difference. First operand 4456 states and 11441 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) [2022-01-18 05:16:43,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:43,555 INFO L93 Difference]: Finished difference Result 8820 states and 22452 transitions. [2022-01-18 05:16:43,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 05:16:43,555 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 [2022-01-18 05:16:43,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:43,568 INFO L225 Difference]: With dead ends: 8820 [2022-01-18 05:16:43,568 INFO L226 Difference]: Without dead ends: 8563 [2022-01-18 05:16:43,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2022-01-18 05:16:43,569 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 310 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:43,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 608 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 05:16:43,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8563 states. [2022-01-18 05:16:43,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8563 to 4297. [2022-01-18 05:16:43,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4297 states, 4296 states have (on average 2.5758845437616387) internal successors, (11066), 4296 states have internal predecessors, (11066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:43,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4297 states to 4297 states and 11066 transitions. [2022-01-18 05:16:43,659 INFO L78 Accepts]: Start accepts. Automaton has 4297 states and 11066 transitions. Word has length 48 [2022-01-18 05:16:43,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:43,659 INFO L470 AbstractCegarLoop]: Abstraction has 4297 states and 11066 transitions. [2022-01-18 05:16:43,659 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) [2022-01-18 05:16:43,659 INFO L276 IsEmpty]: Start isEmpty. Operand 4297 states and 11066 transitions. [2022-01-18 05:16:43,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:43,665 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:43,665 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] [2022-01-18 05:16:43,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 05:16:43,665 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:43,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:43,665 INFO L85 PathProgramCache]: Analyzing trace with hash -594454732, now seen corresponding path program 23 times [2022-01-18 05:16:43,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:43,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847871691] [2022-01-18 05:16:43,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:43,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:43,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:43,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:43,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847871691] [2022-01-18 05:16:43,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847871691] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:43,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:43,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 05:16:43,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127205245] [2022-01-18 05:16:43,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:43,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 05:16:43,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:43,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 05:16:43,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-01-18 05:16:43,793 INFO L87 Difference]: Start difference. First operand 4297 states and 11066 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) [2022-01-18 05:16:44,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:44,034 INFO L93 Difference]: Finished difference Result 6214 states and 15820 transitions. [2022-01-18 05:16:44,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 05:16:44,034 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 [2022-01-18 05:16:44,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:44,042 INFO L225 Difference]: With dead ends: 6214 [2022-01-18 05:16:44,042 INFO L226 Difference]: Without dead ends: 5870 [2022-01-18 05:16:44,042 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 [2022-01-18 05:16:44,042 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 274 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:44,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 469 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:16:44,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5870 states. [2022-01-18 05:16:44,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5870 to 4538. [2022-01-18 05:16:44,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4538 states, 4537 states have (on average 2.586951730218206) internal successors, (11737), 4537 states have internal predecessors, (11737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:44,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4538 states to 4538 states and 11737 transitions. [2022-01-18 05:16:44,093 INFO L78 Accepts]: Start accepts. Automaton has 4538 states and 11737 transitions. Word has length 48 [2022-01-18 05:16:44,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:44,093 INFO L470 AbstractCegarLoop]: Abstraction has 4538 states and 11737 transitions. [2022-01-18 05:16:44,093 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) [2022-01-18 05:16:44,093 INFO L276 IsEmpty]: Start isEmpty. Operand 4538 states and 11737 transitions. [2022-01-18 05:16:44,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:44,097 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:44,097 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] [2022-01-18 05:16:44,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 05:16:44,098 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:44,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:44,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1537564694, now seen corresponding path program 24 times [2022-01-18 05:16:44,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:44,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388971473] [2022-01-18 05:16:44,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:44,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:44,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:44,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:44,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388971473] [2022-01-18 05:16:44,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388971473] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:44,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:44,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 05:16:44,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122877858] [2022-01-18 05:16:44,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:44,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 05:16:44,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:44,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 05:16:44,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:16:44,208 INFO L87 Difference]: Start difference. First operand 4538 states and 11737 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) [2022-01-18 05:16:44,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:44,472 INFO L93 Difference]: Finished difference Result 5013 states and 12811 transitions. [2022-01-18 05:16:44,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 05:16:44,472 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 [2022-01-18 05:16:44,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:44,478 INFO L225 Difference]: With dead ends: 5013 [2022-01-18 05:16:44,478 INFO L226 Difference]: Without dead ends: 4694 [2022-01-18 05:16:44,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-01-18 05:16:44,478 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 132 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:44,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 572 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:16:44,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4694 states. [2022-01-18 05:16:44,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4694 to 4393. [2022-01-18 05:16:44,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4393 states, 4392 states have (on average 2.5951730418943533) internal successors, (11398), 4392 states have internal predecessors, (11398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:44,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4393 states to 4393 states and 11398 transitions. [2022-01-18 05:16:44,526 INFO L78 Accepts]: Start accepts. Automaton has 4393 states and 11398 transitions. Word has length 48 [2022-01-18 05:16:44,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:44,526 INFO L470 AbstractCegarLoop]: Abstraction has 4393 states and 11398 transitions. [2022-01-18 05:16:44,526 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) [2022-01-18 05:16:44,526 INFO L276 IsEmpty]: Start isEmpty. Operand 4393 states and 11398 transitions. [2022-01-18 05:16:44,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:44,530 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:44,530 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] [2022-01-18 05:16:44,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 05:16:44,530 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:44,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:44,531 INFO L85 PathProgramCache]: Analyzing trace with hash 937439520, now seen corresponding path program 25 times [2022-01-18 05:16:44,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:44,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112877408] [2022-01-18 05:16:44,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:44,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:44,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:44,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:44,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112877408] [2022-01-18 05:16:44,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112877408] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:44,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:44,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 05:16:44,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369987440] [2022-01-18 05:16:44,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:44,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 05:16:44,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:44,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 05:16:44,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 05:16:44,542 INFO L87 Difference]: Start difference. First operand 4393 states and 11398 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) [2022-01-18 05:16:44,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:44,562 INFO L93 Difference]: Finished difference Result 4113 states and 10353 transitions. [2022-01-18 05:16:44,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 05:16:44,563 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 [2022-01-18 05:16:44,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:44,568 INFO L225 Difference]: With dead ends: 4113 [2022-01-18 05:16:44,568 INFO L226 Difference]: Without dead ends: 4113 [2022-01-18 05:16:44,568 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 [2022-01-18 05:16:44,569 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 [2022-01-18 05:16:44,569 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] [2022-01-18 05:16:44,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4113 states. [2022-01-18 05:16:44,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4113 to 4015. [2022-01-18 05:16:44,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4015 states, 4014 states have (on average 2.521175884404584) internal successors, (10120), 4014 states have internal predecessors, (10120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:44,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4015 states to 4015 states and 10120 transitions. [2022-01-18 05:16:44,620 INFO L78 Accepts]: Start accepts. Automaton has 4015 states and 10120 transitions. Word has length 48 [2022-01-18 05:16:44,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:44,620 INFO L470 AbstractCegarLoop]: Abstraction has 4015 states and 10120 transitions. [2022-01-18 05:16:44,620 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) [2022-01-18 05:16:44,620 INFO L276 IsEmpty]: Start isEmpty. Operand 4015 states and 10120 transitions. [2022-01-18 05:16:44,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:44,625 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:44,625 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] [2022-01-18 05:16:44,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 05:16:44,625 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:44,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:44,626 INFO L85 PathProgramCache]: Analyzing trace with hash -242687168, now seen corresponding path program 26 times [2022-01-18 05:16:44,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:44,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003401812] [2022-01-18 05:16:44,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:44,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:44,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:44,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:44,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003401812] [2022-01-18 05:16:44,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003401812] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:44,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:44,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:16:44,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965668824] [2022-01-18 05:16:44,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:44,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:16:44,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:44,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:16:44,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:16:44,702 INFO L87 Difference]: Start difference. First operand 4015 states and 10120 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) [2022-01-18 05:16:44,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:44,867 INFO L93 Difference]: Finished difference Result 4577 states and 11379 transitions. [2022-01-18 05:16:44,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 05:16:44,867 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 [2022-01-18 05:16:44,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:44,873 INFO L225 Difference]: With dead ends: 4577 [2022-01-18 05:16:44,873 INFO L226 Difference]: Without dead ends: 4237 [2022-01-18 05:16:44,873 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 [2022-01-18 05:16:44,874 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 209 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:44,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 677 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:44,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4237 states. [2022-01-18 05:16:44,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4237 to 3927. [2022-01-18 05:16:44,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3927 states, 3926 states have (on average 2.5061130922058075) internal successors, (9839), 3926 states have internal predecessors, (9839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:44,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3927 states to 3927 states and 9839 transitions. [2022-01-18 05:16:44,921 INFO L78 Accepts]: Start accepts. Automaton has 3927 states and 9839 transitions. Word has length 48 [2022-01-18 05:16:44,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:44,921 INFO L470 AbstractCegarLoop]: Abstraction has 3927 states and 9839 transitions. [2022-01-18 05:16:44,922 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) [2022-01-18 05:16:44,922 INFO L276 IsEmpty]: Start isEmpty. Operand 3927 states and 9839 transitions. [2022-01-18 05:16:44,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:44,926 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:44,926 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] [2022-01-18 05:16:44,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 05:16:44,927 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:44,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:44,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1509006252, now seen corresponding path program 27 times [2022-01-18 05:16:44,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:44,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629896435] [2022-01-18 05:16:44,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:44,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:45,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:45,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:45,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629896435] [2022-01-18 05:16:45,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629896435] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:45,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:45,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 05:16:45,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468375023] [2022-01-18 05:16:45,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:45,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 05:16:45,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:45,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 05:16:45,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:16:45,032 INFO L87 Difference]: Start difference. First operand 3927 states and 9839 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) [2022-01-18 05:16:45,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:45,317 INFO L93 Difference]: Finished difference Result 5865 states and 14506 transitions. [2022-01-18 05:16:45,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-18 05:16:45,317 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 [2022-01-18 05:16:45,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:45,326 INFO L225 Difference]: With dead ends: 5865 [2022-01-18 05:16:45,326 INFO L226 Difference]: Without dead ends: 5707 [2022-01-18 05:16:45,326 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 [2022-01-18 05:16:45,327 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 186 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:45,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 479 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:16:45,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5707 states. [2022-01-18 05:16:45,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5707 to 3945. [2022-01-18 05:16:45,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3945 states, 3944 states have (on average 2.5045638945233266) internal successors, (9878), 3944 states have internal predecessors, (9878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:45,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3945 states to 3945 states and 9878 transitions. [2022-01-18 05:16:45,390 INFO L78 Accepts]: Start accepts. Automaton has 3945 states and 9878 transitions. Word has length 48 [2022-01-18 05:16:45,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:45,390 INFO L470 AbstractCegarLoop]: Abstraction has 3945 states and 9878 transitions. [2022-01-18 05:16:45,390 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) [2022-01-18 05:16:45,390 INFO L276 IsEmpty]: Start isEmpty. Operand 3945 states and 9878 transitions. [2022-01-18 05:16:45,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:45,396 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:45,396 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] [2022-01-18 05:16:45,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 05:16:45,397 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:45,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:45,397 INFO L85 PathProgramCache]: Analyzing trace with hash -2137253948, now seen corresponding path program 28 times [2022-01-18 05:16:45,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:45,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705899851] [2022-01-18 05:16:45,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:45,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:45,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:45,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:45,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705899851] [2022-01-18 05:16:45,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705899851] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:45,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:45,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:16:45,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164557908] [2022-01-18 05:16:45,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:45,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:16:45,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:45,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:16:45,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:16:45,506 INFO L87 Difference]: Start difference. First operand 3945 states and 9878 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) [2022-01-18 05:16:45,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:45,637 INFO L93 Difference]: Finished difference Result 5688 states and 14152 transitions. [2022-01-18 05:16:45,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 05:16:45,637 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 [2022-01-18 05:16:45,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:45,643 INFO L225 Difference]: With dead ends: 5688 [2022-01-18 05:16:45,643 INFO L226 Difference]: Without dead ends: 5624 [2022-01-18 05:16:45,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:16:45,643 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 147 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:45,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 247 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:45,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5624 states. [2022-01-18 05:16:45,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5624 to 4396. [2022-01-18 05:16:45,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4396 states, 4395 states have (on average 2.502844141069397) internal successors, (11000), 4395 states have internal predecessors, (11000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:45,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4396 states to 4396 states and 11000 transitions. [2022-01-18 05:16:45,701 INFO L78 Accepts]: Start accepts. Automaton has 4396 states and 11000 transitions. Word has length 48 [2022-01-18 05:16:45,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:45,701 INFO L470 AbstractCegarLoop]: Abstraction has 4396 states and 11000 transitions. [2022-01-18 05:16:45,701 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) [2022-01-18 05:16:45,701 INFO L276 IsEmpty]: Start isEmpty. Operand 4396 states and 11000 transitions. [2022-01-18 05:16:45,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:45,706 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:45,707 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] [2022-01-18 05:16:45,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 05:16:45,707 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:45,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:45,707 INFO L85 PathProgramCache]: Analyzing trace with hash 2015834850, now seen corresponding path program 29 times [2022-01-18 05:16:45,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:45,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348547915] [2022-01-18 05:16:45,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:45,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:45,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:45,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:45,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348547915] [2022-01-18 05:16:45,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348547915] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:45,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:45,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:16:45,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708223244] [2022-01-18 05:16:45,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:45,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:16:45,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:45,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:16:45,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:16:45,796 INFO L87 Difference]: Start difference. First operand 4396 states and 11000 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) [2022-01-18 05:16:45,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:45,944 INFO L93 Difference]: Finished difference Result 4970 states and 12312 transitions. [2022-01-18 05:16:45,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 05:16:45,944 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 [2022-01-18 05:16:45,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:45,950 INFO L225 Difference]: With dead ends: 4970 [2022-01-18 05:16:45,950 INFO L226 Difference]: Without dead ends: 4772 [2022-01-18 05:16:45,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:16:45,951 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 181 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:45,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 221 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:45,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4772 states. [2022-01-18 05:16:45,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4772 to 4223. [2022-01-18 05:16:45,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4223 states, 4222 states have (on average 2.5035528185693985) internal successors, (10570), 4222 states have internal predecessors, (10570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:45,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4223 states to 4223 states and 10570 transitions. [2022-01-18 05:16:45,993 INFO L78 Accepts]: Start accepts. Automaton has 4223 states and 10570 transitions. Word has length 48 [2022-01-18 05:16:45,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:45,993 INFO L470 AbstractCegarLoop]: Abstraction has 4223 states and 10570 transitions. [2022-01-18 05:16:45,993 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) [2022-01-18 05:16:45,993 INFO L276 IsEmpty]: Start isEmpty. Operand 4223 states and 10570 transitions. [2022-01-18 05:16:45,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:45,998 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:45,998 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] [2022-01-18 05:16:45,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 05:16:45,998 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:45,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:45,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1768785176, now seen corresponding path program 30 times [2022-01-18 05:16:45,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:45,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693132285] [2022-01-18 05:16:45,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:45,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:46,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:46,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:46,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693132285] [2022-01-18 05:16:46,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693132285] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:46,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:46,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:16:46,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846455182] [2022-01-18 05:16:46,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:46,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:16:46,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:46,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:16:46,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:16:46,064 INFO L87 Difference]: Start difference. First operand 4223 states and 10570 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) [2022-01-18 05:16:46,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:46,240 INFO L93 Difference]: Finished difference Result 4559 states and 11282 transitions. [2022-01-18 05:16:46,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 05:16:46,241 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 [2022-01-18 05:16:46,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:46,248 INFO L225 Difference]: With dead ends: 4559 [2022-01-18 05:16:46,248 INFO L226 Difference]: Without dead ends: 4465 [2022-01-18 05:16:46,248 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 [2022-01-18 05:16:46,249 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 190 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:46,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 675 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:46,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4465 states. [2022-01-18 05:16:46,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4465 to 4203. [2022-01-18 05:16:46,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4203 states, 4202 states have (on average 2.498810090433127) internal successors, (10500), 4202 states have internal predecessors, (10500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:46,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4203 states to 4203 states and 10500 transitions. [2022-01-18 05:16:46,309 INFO L78 Accepts]: Start accepts. Automaton has 4203 states and 10500 transitions. Word has length 48 [2022-01-18 05:16:46,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:46,309 INFO L470 AbstractCegarLoop]: Abstraction has 4203 states and 10500 transitions. [2022-01-18 05:16:46,309 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) [2022-01-18 05:16:46,309 INFO L276 IsEmpty]: Start isEmpty. Operand 4203 states and 10500 transitions. [2022-01-18 05:16:46,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:46,315 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:46,315 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] [2022-01-18 05:16:46,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 05:16:46,315 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:46,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:46,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1173595316, now seen corresponding path program 31 times [2022-01-18 05:16:46,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:46,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434871778] [2022-01-18 05:16:46,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:46,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:46,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:46,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:46,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434871778] [2022-01-18 05:16:46,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434871778] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:46,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:46,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:16:46,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884146283] [2022-01-18 05:16:46,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:46,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:16:46,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:46,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:16:46,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:16:46,409 INFO L87 Difference]: Start difference. First operand 4203 states and 10500 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) [2022-01-18 05:16:46,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:46,566 INFO L93 Difference]: Finished difference Result 4464 states and 11024 transitions. [2022-01-18 05:16:46,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 05:16:46,566 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 [2022-01-18 05:16:46,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:46,574 INFO L225 Difference]: With dead ends: 4464 [2022-01-18 05:16:46,574 INFO L226 Difference]: Without dead ends: 4402 [2022-01-18 05:16:46,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:16:46,575 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 111 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:46,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 277 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:46,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4402 states. [2022-01-18 05:16:46,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4402 to 4152. [2022-01-18 05:16:46,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4152 states, 4151 states have (on average 2.488075162611419) internal successors, (10328), 4151 states have internal predecessors, (10328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:46,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4152 states to 4152 states and 10328 transitions. [2022-01-18 05:16:46,631 INFO L78 Accepts]: Start accepts. Automaton has 4152 states and 10328 transitions. Word has length 48 [2022-01-18 05:16:46,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:46,631 INFO L470 AbstractCegarLoop]: Abstraction has 4152 states and 10328 transitions. [2022-01-18 05:16:46,631 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) [2022-01-18 05:16:46,631 INFO L276 IsEmpty]: Start isEmpty. Operand 4152 states and 10328 transitions. [2022-01-18 05:16:46,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:46,637 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:46,637 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] [2022-01-18 05:16:46,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 05:16:46,637 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:46,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:46,638 INFO L85 PathProgramCache]: Analyzing trace with hash -684235422, now seen corresponding path program 32 times [2022-01-18 05:16:46,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:46,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859524967] [2022-01-18 05:16:46,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:46,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:46,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:46,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:46,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859524967] [2022-01-18 05:16:46,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859524967] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:46,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:46,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:16:46,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374536411] [2022-01-18 05:16:46,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:46,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:16:46,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:46,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:16:46,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:16:46,733 INFO L87 Difference]: Start difference. First operand 4152 states and 10328 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) [2022-01-18 05:16:46,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:46,857 INFO L93 Difference]: Finished difference Result 4626 states and 11385 transitions. [2022-01-18 05:16:46,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 05:16:46,857 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 [2022-01-18 05:16:46,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:46,862 INFO L225 Difference]: With dead ends: 4626 [2022-01-18 05:16:46,863 INFO L226 Difference]: Without dead ends: 4558 [2022-01-18 05:16:46,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:16:46,863 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 145 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:46,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 212 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:46,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4558 states. [2022-01-18 05:16:46,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4558 to 4084. [2022-01-18 05:16:46,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4084 states, 4083 states have (on average 2.4839578741121726) internal successors, (10142), 4083 states have internal predecessors, (10142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:46,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4084 states to 4084 states and 10142 transitions. [2022-01-18 05:16:46,907 INFO L78 Accepts]: Start accepts. Automaton has 4084 states and 10142 transitions. Word has length 48 [2022-01-18 05:16:46,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:46,907 INFO L470 AbstractCegarLoop]: Abstraction has 4084 states and 10142 transitions. [2022-01-18 05:16:46,907 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) [2022-01-18 05:16:46,907 INFO L276 IsEmpty]: Start isEmpty. Operand 4084 states and 10142 transitions. [2022-01-18 05:16:46,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:46,912 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:46,912 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] [2022-01-18 05:16:46,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 05:16:46,912 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:46,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:46,912 INFO L85 PathProgramCache]: Analyzing trace with hash -826113920, now seen corresponding path program 33 times [2022-01-18 05:16:46,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:46,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364605038] [2022-01-18 05:16:46,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:46,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:46,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:47,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:47,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:47,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364605038] [2022-01-18 05:16:47,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364605038] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:47,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:47,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:16:47,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180838972] [2022-01-18 05:16:47,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:47,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:16:47,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:47,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:16:47,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:16:47,006 INFO L87 Difference]: Start difference. First operand 4084 states and 10142 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) [2022-01-18 05:16:47,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:47,166 INFO L93 Difference]: Finished difference Result 4226 states and 10330 transitions. [2022-01-18 05:16:47,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 05:16:47,166 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 [2022-01-18 05:16:47,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:47,172 INFO L225 Difference]: With dead ends: 4226 [2022-01-18 05:16:47,172 INFO L226 Difference]: Without dead ends: 4031 [2022-01-18 05:16:47,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:16:47,173 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 164 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:47,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 256 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:47,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4031 states. [2022-01-18 05:16:47,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4031 to 3223. [2022-01-18 05:16:47,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3223 states, 3222 states have (on average 2.4720670391061454) internal successors, (7965), 3222 states have internal predecessors, (7965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:47,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3223 states to 3223 states and 7965 transitions. [2022-01-18 05:16:47,217 INFO L78 Accepts]: Start accepts. Automaton has 3223 states and 7965 transitions. Word has length 48 [2022-01-18 05:16:47,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:47,217 INFO L470 AbstractCegarLoop]: Abstraction has 3223 states and 7965 transitions. [2022-01-18 05:16:47,217 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) [2022-01-18 05:16:47,217 INFO L276 IsEmpty]: Start isEmpty. Operand 3223 states and 7965 transitions. [2022-01-18 05:16:47,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:47,221 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:47,221 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] [2022-01-18 05:16:47,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 05:16:47,221 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:47,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:47,222 INFO L85 PathProgramCache]: Analyzing trace with hash -228992076, now seen corresponding path program 34 times [2022-01-18 05:16:47,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:47,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174597706] [2022-01-18 05:16:47,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:47,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:47,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:47,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:47,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174597706] [2022-01-18 05:16:47,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174597706] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:47,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:47,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:16:47,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966272420] [2022-01-18 05:16:47,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:47,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:16:47,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:47,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:16:47,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:16:47,310 INFO L87 Difference]: Start difference. First operand 3223 states and 7965 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) [2022-01-18 05:16:47,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:47,438 INFO L93 Difference]: Finished difference Result 4115 states and 10071 transitions. [2022-01-18 05:16:47,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 05:16:47,439 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 [2022-01-18 05:16:47,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:47,442 INFO L225 Difference]: With dead ends: 4115 [2022-01-18 05:16:47,442 INFO L226 Difference]: Without dead ends: 4056 [2022-01-18 05:16:47,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:16:47,444 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 87 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:47,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 269 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:47,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4056 states. [2022-01-18 05:16:47,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4056 to 3212. [2022-01-18 05:16:47,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3212 states, 3211 states have (on average 2.4699470569915913) internal successors, (7931), 3211 states have internal predecessors, (7931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:47,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3212 states to 3212 states and 7931 transitions. [2022-01-18 05:16:47,487 INFO L78 Accepts]: Start accepts. Automaton has 3212 states and 7931 transitions. Word has length 48 [2022-01-18 05:16:47,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:47,487 INFO L470 AbstractCegarLoop]: Abstraction has 3212 states and 7931 transitions. [2022-01-18 05:16:47,487 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) [2022-01-18 05:16:47,487 INFO L276 IsEmpty]: Start isEmpty. Operand 3212 states and 7931 transitions. [2022-01-18 05:16:47,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:47,490 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:47,490 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] [2022-01-18 05:16:47,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 05:16:47,490 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:47,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:47,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1887273988, now seen corresponding path program 35 times [2022-01-18 05:16:47,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:47,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047214760] [2022-01-18 05:16:47,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:47,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:47,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:47,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:47,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:47,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047214760] [2022-01-18 05:16:47,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047214760] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:47,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:47,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:16:47,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390582027] [2022-01-18 05:16:47,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:47,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:16:47,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:47,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:16:47,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:16:47,565 INFO L87 Difference]: Start difference. First operand 3212 states and 7931 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) [2022-01-18 05:16:47,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:47,729 INFO L93 Difference]: Finished difference Result 3615 states and 8816 transitions. [2022-01-18 05:16:47,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 05:16:47,729 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 [2022-01-18 05:16:47,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:47,734 INFO L225 Difference]: With dead ends: 3615 [2022-01-18 05:16:47,734 INFO L226 Difference]: Without dead ends: 3320 [2022-01-18 05:16:47,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-01-18 05:16:47,735 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 191 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:47,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 707 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:47,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3320 states. [2022-01-18 05:16:47,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3320 to 3097. [2022-01-18 05:16:47,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3097 states, 3096 states have (on average 2.452196382428941) internal successors, (7592), 3096 states have internal predecessors, (7592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:47,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3097 states to 3097 states and 7592 transitions. [2022-01-18 05:16:47,773 INFO L78 Accepts]: Start accepts. Automaton has 3097 states and 7592 transitions. Word has length 48 [2022-01-18 05:16:47,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:47,773 INFO L470 AbstractCegarLoop]: Abstraction has 3097 states and 7592 transitions. [2022-01-18 05:16:47,773 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) [2022-01-18 05:16:47,773 INFO L276 IsEmpty]: Start isEmpty. Operand 3097 states and 7592 transitions. [2022-01-18 05:16:47,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:47,777 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:47,777 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] [2022-01-18 05:16:47,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-18 05:16:47,778 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:47,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:47,778 INFO L85 PathProgramCache]: Analyzing trace with hash 2093953770, now seen corresponding path program 36 times [2022-01-18 05:16:47,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:47,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235676607] [2022-01-18 05:16:47,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:47,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:47,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:47,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:47,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235676607] [2022-01-18 05:16:47,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235676607] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:47,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:47,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 05:16:47,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842017837] [2022-01-18 05:16:47,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:47,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 05:16:47,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:47,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 05:16:47,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:16:47,881 INFO L87 Difference]: Start difference. First operand 3097 states and 7592 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) [2022-01-18 05:16:48,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:48,144 INFO L93 Difference]: Finished difference Result 5084 states and 12138 transitions. [2022-01-18 05:16:48,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 05:16:48,144 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 [2022-01-18 05:16:48,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:48,149 INFO L225 Difference]: With dead ends: 5084 [2022-01-18 05:16:48,149 INFO L226 Difference]: Without dead ends: 4743 [2022-01-18 05:16:48,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2022-01-18 05:16:48,150 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 291 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:48,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 376 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:16:48,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4743 states. [2022-01-18 05:16:48,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4743 to 3467. [2022-01-18 05:16:48,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3467 states, 3466 states have (on average 2.4258511252163877) internal successors, (8408), 3466 states have internal predecessors, (8408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:48,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3467 states to 3467 states and 8408 transitions. [2022-01-18 05:16:48,185 INFO L78 Accepts]: Start accepts. Automaton has 3467 states and 8408 transitions. Word has length 48 [2022-01-18 05:16:48,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:48,185 INFO L470 AbstractCegarLoop]: Abstraction has 3467 states and 8408 transitions. [2022-01-18 05:16:48,185 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) [2022-01-18 05:16:48,186 INFO L276 IsEmpty]: Start isEmpty. Operand 3467 states and 8408 transitions. [2022-01-18 05:16:48,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:48,189 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:48,189 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] [2022-01-18 05:16:48,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-18 05:16:48,189 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:48,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:48,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1544148968, now seen corresponding path program 37 times [2022-01-18 05:16:48,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:48,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79291108] [2022-01-18 05:16:48,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:48,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:48,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:48,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:48,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79291108] [2022-01-18 05:16:48,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79291108] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:48,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:48,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 05:16:48,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210516380] [2022-01-18 05:16:48,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:48,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 05:16:48,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:48,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 05:16:48,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-18 05:16:48,308 INFO L87 Difference]: Start difference. First operand 3467 states and 8408 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) [2022-01-18 05:16:48,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:48,420 INFO L93 Difference]: Finished difference Result 3716 states and 8981 transitions. [2022-01-18 05:16:48,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 05:16:48,420 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 [2022-01-18 05:16:48,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:48,424 INFO L225 Difference]: With dead ends: 3716 [2022-01-18 05:16:48,424 INFO L226 Difference]: Without dead ends: 3587 [2022-01-18 05:16:48,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-18 05:16:48,424 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 48 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:48,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 218 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:48,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3587 states. [2022-01-18 05:16:48,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3587 to 3455. [2022-01-18 05:16:48,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3455 states, 3454 states have (on average 2.4253039953676896) internal successors, (8377), 3454 states have internal predecessors, (8377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:48,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3455 states to 3455 states and 8377 transitions. [2022-01-18 05:16:48,464 INFO L78 Accepts]: Start accepts. Automaton has 3455 states and 8377 transitions. Word has length 48 [2022-01-18 05:16:48,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:48,464 INFO L470 AbstractCegarLoop]: Abstraction has 3455 states and 8377 transitions. [2022-01-18 05:16:48,464 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) [2022-01-18 05:16:48,464 INFO L276 IsEmpty]: Start isEmpty. Operand 3455 states and 8377 transitions. [2022-01-18 05:16:48,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:48,468 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:48,468 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] [2022-01-18 05:16:48,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 05:16:48,469 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:48,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:48,469 INFO L85 PathProgramCache]: Analyzing trace with hash -82170110, now seen corresponding path program 38 times [2022-01-18 05:16:48,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:48,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356472667] [2022-01-18 05:16:48,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:48,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:48,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:48,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:48,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356472667] [2022-01-18 05:16:48,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356472667] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:48,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:48,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:16:48,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73418010] [2022-01-18 05:16:48,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:48,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:16:48,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:48,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:16:48,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:16:48,553 INFO L87 Difference]: Start difference. First operand 3455 states and 8377 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) [2022-01-18 05:16:48,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:48,644 INFO L93 Difference]: Finished difference Result 3991 states and 9597 transitions. [2022-01-18 05:16:48,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 05:16:48,644 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 [2022-01-18 05:16:48,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:48,648 INFO L225 Difference]: With dead ends: 3991 [2022-01-18 05:16:48,648 INFO L226 Difference]: Without dead ends: 3778 [2022-01-18 05:16:48,648 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 [2022-01-18 05:16:48,648 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 134 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:48,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 221 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:48,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3778 states. [2022-01-18 05:16:48,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3778 to 3214. [2022-01-18 05:16:48,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3214 states, 3213 states have (on average 2.415188297541239) internal successors, (7760), 3213 states have internal predecessors, (7760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:48,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 7760 transitions. [2022-01-18 05:16:48,680 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 7760 transitions. Word has length 48 [2022-01-18 05:16:48,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:48,680 INFO L470 AbstractCegarLoop]: Abstraction has 3214 states and 7760 transitions. [2022-01-18 05:16:48,680 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) [2022-01-18 05:16:48,681 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 7760 transitions. [2022-01-18 05:16:48,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:48,684 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:48,684 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] [2022-01-18 05:16:48,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-18 05:16:48,684 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:48,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:48,684 INFO L85 PathProgramCache]: Analyzing trace with hash -631974912, now seen corresponding path program 39 times [2022-01-18 05:16:48,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:48,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789163387] [2022-01-18 05:16:48,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:48,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:48,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:48,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:48,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789163387] [2022-01-18 05:16:48,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789163387] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:48,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:48,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:16:48,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185486183] [2022-01-18 05:16:48,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:48,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:16:48,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:48,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:16:48,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:16:48,839 INFO L87 Difference]: Start difference. First operand 3214 states and 7760 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) [2022-01-18 05:16:49,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:49,024 INFO L93 Difference]: Finished difference Result 3343 states and 8038 transitions. [2022-01-18 05:16:49,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 05:16:49,025 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 [2022-01-18 05:16:49,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:49,029 INFO L225 Difference]: With dead ends: 3343 [2022-01-18 05:16:49,029 INFO L226 Difference]: Without dead ends: 3161 [2022-01-18 05:16:49,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-01-18 05:16:49,029 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 74 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:49,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 247 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:49,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3161 states. [2022-01-18 05:16:49,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3161 to 3159. [2022-01-18 05:16:49,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3159 states, 3158 states have (on average 2.414819506016466) internal successors, (7626), 3158 states have internal predecessors, (7626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:49,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3159 states to 3159 states and 7626 transitions. [2022-01-18 05:16:49,059 INFO L78 Accepts]: Start accepts. Automaton has 3159 states and 7626 transitions. Word has length 48 [2022-01-18 05:16:49,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:49,059 INFO L470 AbstractCegarLoop]: Abstraction has 3159 states and 7626 transitions. [2022-01-18 05:16:49,059 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) [2022-01-18 05:16:49,059 INFO L276 IsEmpty]: Start isEmpty. Operand 3159 states and 7626 transitions. [2022-01-18 05:16:49,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:49,062 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:49,062 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] [2022-01-18 05:16:49,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-18 05:16:49,063 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:49,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:49,063 INFO L85 PathProgramCache]: Analyzing trace with hash 115076142, now seen corresponding path program 40 times [2022-01-18 05:16:49,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:49,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12470430] [2022-01-18 05:16:49,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:49,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:49,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:49,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:49,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12470430] [2022-01-18 05:16:49,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12470430] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:49,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:49,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 05:16:49,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365835252] [2022-01-18 05:16:49,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:49,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 05:16:49,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:49,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 05:16:49,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-18 05:16:49,136 INFO L87 Difference]: Start difference. First operand 3159 states and 7626 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) [2022-01-18 05:16:49,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:49,285 INFO L93 Difference]: Finished difference Result 3374 states and 7993 transitions. [2022-01-18 05:16:49,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 05:16:49,285 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 [2022-01-18 05:16:49,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:49,288 INFO L225 Difference]: With dead ends: 3374 [2022-01-18 05:16:49,288 INFO L226 Difference]: Without dead ends: 3066 [2022-01-18 05:16:49,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:16:49,288 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 95 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:49,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 313 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:49,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3066 states. [2022-01-18 05:16:49,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3066 to 2850. [2022-01-18 05:16:49,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2850 states, 2849 states have (on average 2.4082134082134083) internal successors, (6861), 2849 states have internal predecessors, (6861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:49,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2850 states to 2850 states and 6861 transitions. [2022-01-18 05:16:49,320 INFO L78 Accepts]: Start accepts. Automaton has 2850 states and 6861 transitions. Word has length 48 [2022-01-18 05:16:49,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:49,320 INFO L470 AbstractCegarLoop]: Abstraction has 2850 states and 6861 transitions. [2022-01-18 05:16:49,320 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) [2022-01-18 05:16:49,320 INFO L276 IsEmpty]: Start isEmpty. Operand 2850 states and 6861 transitions. [2022-01-18 05:16:49,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:49,323 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:49,323 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] [2022-01-18 05:16:49,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-18 05:16:49,324 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:49,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:49,324 INFO L85 PathProgramCache]: Analyzing trace with hash -68059828, now seen corresponding path program 41 times [2022-01-18 05:16:49,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:49,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389746354] [2022-01-18 05:16:49,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:49,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:49,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:49,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:49,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389746354] [2022-01-18 05:16:49,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389746354] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:49,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:49,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 05:16:49,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229883352] [2022-01-18 05:16:49,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:49,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 05:16:49,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:49,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 05:16:49,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:16:49,458 INFO L87 Difference]: Start difference. First operand 2850 states and 6861 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) [2022-01-18 05:16:50,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:50,077 INFO L93 Difference]: Finished difference Result 3813 states and 9024 transitions. [2022-01-18 05:16:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 05:16:50,078 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 [2022-01-18 05:16:50,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:50,082 INFO L225 Difference]: With dead ends: 3813 [2022-01-18 05:16:50,082 INFO L226 Difference]: Without dead ends: 3585 [2022-01-18 05:16:50,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=162, Invalid=540, Unknown=0, NotChecked=0, Total=702 [2022-01-18 05:16:50,082 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 406 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:50,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [406 Valid, 539 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 05:16:50,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3585 states. [2022-01-18 05:16:50,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3585 to 2967. [2022-01-18 05:16:50,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2967 states, 2966 states have (on average 2.3961564396493595) internal successors, (7107), 2966 states have internal predecessors, (7107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:50,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2967 states to 2967 states and 7107 transitions. [2022-01-18 05:16:50,108 INFO L78 Accepts]: Start accepts. Automaton has 2967 states and 7107 transitions. Word has length 48 [2022-01-18 05:16:50,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:50,108 INFO L470 AbstractCegarLoop]: Abstraction has 2967 states and 7107 transitions. [2022-01-18 05:16:50,108 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) [2022-01-18 05:16:50,108 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states and 7107 transitions. [2022-01-18 05:16:50,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:50,110 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:50,110 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] [2022-01-18 05:16:50,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-18 05:16:50,110 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:50,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:50,111 INFO L85 PathProgramCache]: Analyzing trace with hash -530234322, now seen corresponding path program 42 times [2022-01-18 05:16:50,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:50,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605401789] [2022-01-18 05:16:50,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:50,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:50,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:50,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:50,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:50,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605401789] [2022-01-18 05:16:50,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605401789] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:50,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:50,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:16:50,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653301433] [2022-01-18 05:16:50,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:50,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:16:50,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:50,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:16:50,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:16:50,240 INFO L87 Difference]: Start difference. First operand 2967 states and 7107 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) [2022-01-18 05:16:50,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:50,337 INFO L93 Difference]: Finished difference Result 3085 states and 7351 transitions. [2022-01-18 05:16:50,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 05:16:50,338 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 [2022-01-18 05:16:50,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:50,341 INFO L225 Difference]: With dead ends: 3085 [2022-01-18 05:16:50,341 INFO L226 Difference]: Without dead ends: 2959 [2022-01-18 05:16:50,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:16:50,341 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 43 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:50,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 259 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:50,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2022-01-18 05:16:50,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 2955. [2022-01-18 05:16:50,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2955 states, 2954 states have (on average 2.3974272173324307) internal successors, (7082), 2954 states have internal predecessors, (7082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:50,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2955 states to 2955 states and 7082 transitions. [2022-01-18 05:16:50,365 INFO L78 Accepts]: Start accepts. Automaton has 2955 states and 7082 transitions. Word has length 48 [2022-01-18 05:16:50,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:50,365 INFO L470 AbstractCegarLoop]: Abstraction has 2955 states and 7082 transitions. [2022-01-18 05:16:50,365 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) [2022-01-18 05:16:50,365 INFO L276 IsEmpty]: Start isEmpty. Operand 2955 states and 7082 transitions. [2022-01-18 05:16:50,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:50,368 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:50,368 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] [2022-01-18 05:16:50,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-18 05:16:50,368 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:50,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:50,368 INFO L85 PathProgramCache]: Analyzing trace with hash -709714664, now seen corresponding path program 43 times [2022-01-18 05:16:50,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:50,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124527327] [2022-01-18 05:16:50,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:50,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:50,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:50,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:50,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124527327] [2022-01-18 05:16:50,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124527327] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:50,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:50,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:16:50,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565041665] [2022-01-18 05:16:50,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:50,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:16:50,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:50,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:16:50,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:16:50,443 INFO L87 Difference]: Start difference. First operand 2955 states and 7082 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) [2022-01-18 05:16:50,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:50,586 INFO L93 Difference]: Finished difference Result 3143 states and 7454 transitions. [2022-01-18 05:16:50,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 05:16:50,586 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 [2022-01-18 05:16:50,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:50,589 INFO L225 Difference]: With dead ends: 3143 [2022-01-18 05:16:50,589 INFO L226 Difference]: Without dead ends: 2650 [2022-01-18 05:16:50,589 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 [2022-01-18 05:16:50,589 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 186 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:50,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 705 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:50,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2022-01-18 05:16:50,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 2491. [2022-01-18 05:16:50,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2491 states, 2490 states have (on average 2.3710843373493975) internal successors, (5904), 2490 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:50,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2491 states to 2491 states and 5904 transitions. [2022-01-18 05:16:50,610 INFO L78 Accepts]: Start accepts. Automaton has 2491 states and 5904 transitions. Word has length 48 [2022-01-18 05:16:50,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:50,611 INFO L470 AbstractCegarLoop]: Abstraction has 2491 states and 5904 transitions. [2022-01-18 05:16:50,611 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) [2022-01-18 05:16:50,611 INFO L276 IsEmpty]: Start isEmpty. Operand 2491 states and 5904 transitions. [2022-01-18 05:16:50,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:50,613 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:50,613 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] [2022-01-18 05:16:50,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-18 05:16:50,613 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:50,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:50,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1009918126, now seen corresponding path program 44 times [2022-01-18 05:16:50,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:50,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868460063] [2022-01-18 05:16:50,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:50,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:50,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:50,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:50,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868460063] [2022-01-18 05:16:50,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868460063] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:50,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:50,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:16:50,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715724534] [2022-01-18 05:16:50,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:50,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:16:50,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:50,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:16:50,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:16:50,691 INFO L87 Difference]: Start difference. First operand 2491 states and 5904 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) [2022-01-18 05:16:50,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:50,863 INFO L93 Difference]: Finished difference Result 3707 states and 8669 transitions. [2022-01-18 05:16:50,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 05:16:50,863 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 [2022-01-18 05:16:50,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:50,868 INFO L225 Difference]: With dead ends: 3707 [2022-01-18 05:16:50,868 INFO L226 Difference]: Without dead ends: 3221 [2022-01-18 05:16:50,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-01-18 05:16:50,869 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 193 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:50,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 305 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:50,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3221 states. [2022-01-18 05:16:50,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3221 to 2398. [2022-01-18 05:16:50,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2398 states, 2397 states have (on average 2.3341677096370463) internal successors, (5595), 2397 states have internal predecessors, (5595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:50,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2398 states to 2398 states and 5595 transitions. [2022-01-18 05:16:50,899 INFO L78 Accepts]: Start accepts. Automaton has 2398 states and 5595 transitions. Word has length 48 [2022-01-18 05:16:50,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:50,900 INFO L470 AbstractCegarLoop]: Abstraction has 2398 states and 5595 transitions. [2022-01-18 05:16:50,900 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) [2022-01-18 05:16:50,900 INFO L276 IsEmpty]: Start isEmpty. Operand 2398 states and 5595 transitions. [2022-01-18 05:16:50,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:50,902 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:50,902 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] [2022-01-18 05:16:50,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-18 05:16:50,903 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:50,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:50,903 INFO L85 PathProgramCache]: Analyzing trace with hash 689438834, now seen corresponding path program 45 times [2022-01-18 05:16:50,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:50,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030999118] [2022-01-18 05:16:50,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:50,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:51,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:51,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:51,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030999118] [2022-01-18 05:16:51,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030999118] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:51,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:51,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 05:16:51,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003374139] [2022-01-18 05:16:51,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:51,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 05:16:51,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:51,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 05:16:51,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-18 05:16:51,049 INFO L87 Difference]: Start difference. First operand 2398 states and 5595 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) [2022-01-18 05:16:51,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:51,190 INFO L93 Difference]: Finished difference Result 2961 states and 6858 transitions. [2022-01-18 05:16:51,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 05:16:51,191 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 [2022-01-18 05:16:51,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:51,194 INFO L225 Difference]: With dead ends: 2961 [2022-01-18 05:16:51,194 INFO L226 Difference]: Without dead ends: 2762 [2022-01-18 05:16:51,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:16:51,195 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 71 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:51,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 273 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:51,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states. [2022-01-18 05:16:51,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 2386. [2022-01-18 05:16:51,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2386 states, 2385 states have (on average 2.3308176100628932) internal successors, (5559), 2385 states have internal predecessors, (5559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:51,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2386 states to 2386 states and 5559 transitions. [2022-01-18 05:16:51,224 INFO L78 Accepts]: Start accepts. Automaton has 2386 states and 5559 transitions. Word has length 48 [2022-01-18 05:16:51,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:51,224 INFO L470 AbstractCegarLoop]: Abstraction has 2386 states and 5559 transitions. [2022-01-18 05:16:51,224 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) [2022-01-18 05:16:51,224 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states and 5559 transitions. [2022-01-18 05:16:51,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:51,226 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:51,226 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] [2022-01-18 05:16:51,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-18 05:16:51,227 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:51,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:51,227 INFO L85 PathProgramCache]: Analyzing trace with hash 227264340, now seen corresponding path program 46 times [2022-01-18 05:16:51,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:51,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641337968] [2022-01-18 05:16:51,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:51,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:51,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:51,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:51,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:51,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641337968] [2022-01-18 05:16:51,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641337968] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:51,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:51,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 05:16:51,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312188936] [2022-01-18 05:16:51,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:51,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 05:16:51,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:51,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 05:16:51,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-18 05:16:51,381 INFO L87 Difference]: Start difference. First operand 2386 states and 5559 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) [2022-01-18 05:16:51,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:51,496 INFO L93 Difference]: Finished difference Result 2818 states and 6538 transitions. [2022-01-18 05:16:51,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 05:16:51,496 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 [2022-01-18 05:16:51,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:51,500 INFO L225 Difference]: With dead ends: 2818 [2022-01-18 05:16:51,500 INFO L226 Difference]: Without dead ends: 2572 [2022-01-18 05:16:51,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:16:51,502 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 78 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:51,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 225 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:51,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2572 states. [2022-01-18 05:16:51,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2572 to 2373. [2022-01-18 05:16:51,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2373 states, 2372 states have (on average 2.3263069139966275) internal successors, (5518), 2372 states have internal predecessors, (5518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:51,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2373 states to 2373 states and 5518 transitions. [2022-01-18 05:16:51,529 INFO L78 Accepts]: Start accepts. Automaton has 2373 states and 5518 transitions. Word has length 48 [2022-01-18 05:16:51,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:51,529 INFO L470 AbstractCegarLoop]: Abstraction has 2373 states and 5518 transitions. [2022-01-18 05:16:51,529 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) [2022-01-18 05:16:51,529 INFO L276 IsEmpty]: Start isEmpty. Operand 2373 states and 5518 transitions. [2022-01-18 05:16:51,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:51,532 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:51,532 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] [2022-01-18 05:16:51,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-18 05:16:51,532 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:51,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:51,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1602419814, now seen corresponding path program 47 times [2022-01-18 05:16:51,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:51,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192228064] [2022-01-18 05:16:51,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:51,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:51,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:51,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:51,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192228064] [2022-01-18 05:16:51,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192228064] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:51,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:51,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:16:51,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407055683] [2022-01-18 05:16:51,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:51,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:16:51,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:51,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:16:51,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:16:51,658 INFO L87 Difference]: Start difference. First operand 2373 states and 5518 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) [2022-01-18 05:16:51,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:51,818 INFO L93 Difference]: Finished difference Result 3589 states and 8166 transitions. [2022-01-18 05:16:51,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 05:16:51,818 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 [2022-01-18 05:16:51,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:51,823 INFO L225 Difference]: With dead ends: 3589 [2022-01-18 05:16:51,823 INFO L226 Difference]: Without dead ends: 3358 [2022-01-18 05:16:51,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:16:51,824 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 144 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:51,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 331 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:51,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3358 states. [2022-01-18 05:16:51,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3358 to 2213. [2022-01-18 05:16:51,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2213 states, 2212 states have (on average 2.3200723327305606) internal successors, (5132), 2212 states have internal predecessors, (5132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:51,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2213 states to 2213 states and 5132 transitions. [2022-01-18 05:16:51,855 INFO L78 Accepts]: Start accepts. Automaton has 2213 states and 5132 transitions. Word has length 48 [2022-01-18 05:16:51,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:51,855 INFO L470 AbstractCegarLoop]: Abstraction has 2213 states and 5132 transitions. [2022-01-18 05:16:51,855 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) [2022-01-18 05:16:51,855 INFO L276 IsEmpty]: Start isEmpty. Operand 2213 states and 5132 transitions. [2022-01-18 05:16:51,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:51,858 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:51,858 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] [2022-01-18 05:16:51,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-18 05:16:51,858 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:51,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:51,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1315155866, now seen corresponding path program 48 times [2022-01-18 05:16:51,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:51,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540729232] [2022-01-18 05:16:51,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:51,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:51,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:51,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:51,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540729232] [2022-01-18 05:16:51,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540729232] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:51,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:51,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:16:51,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870086050] [2022-01-18 05:16:51,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:51,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:16:51,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:51,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:16:51,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:16:51,952 INFO L87 Difference]: Start difference. First operand 2213 states and 5132 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) [2022-01-18 05:16:52,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:52,108 INFO L93 Difference]: Finished difference Result 3746 states and 8538 transitions. [2022-01-18 05:16:52,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 05:16:52,109 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 [2022-01-18 05:16:52,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:52,112 INFO L225 Difference]: With dead ends: 3746 [2022-01-18 05:16:52,113 INFO L226 Difference]: Without dead ends: 3472 [2022-01-18 05:16:52,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-01-18 05:16:52,113 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 157 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:52,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 353 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:52,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3472 states. [2022-01-18 05:16:52,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3472 to 2204. [2022-01-18 05:16:52,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2204 states, 2203 states have (on average 2.3104857013163866) internal successors, (5090), 2203 states have internal predecessors, (5090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:52,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2204 states to 2204 states and 5090 transitions. [2022-01-18 05:16:52,136 INFO L78 Accepts]: Start accepts. Automaton has 2204 states and 5090 transitions. Word has length 48 [2022-01-18 05:16:52,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:52,136 INFO L470 AbstractCegarLoop]: Abstraction has 2204 states and 5090 transitions. [2022-01-18 05:16:52,136 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) [2022-01-18 05:16:52,136 INFO L276 IsEmpty]: Start isEmpty. Operand 2204 states and 5090 transitions. [2022-01-18 05:16:52,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:52,138 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:52,138 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] [2022-01-18 05:16:52,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-18 05:16:52,138 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:52,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:52,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1744664144, now seen corresponding path program 49 times [2022-01-18 05:16:52,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:52,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380697520] [2022-01-18 05:16:52,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:52,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:52,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:52,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:52,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380697520] [2022-01-18 05:16:52,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380697520] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:52,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:52,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:16:52,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911817433] [2022-01-18 05:16:52,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:52,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:16:52,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:52,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:16:52,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:16:52,256 INFO L87 Difference]: Start difference. First operand 2204 states and 5090 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) [2022-01-18 05:16:52,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:52,487 INFO L93 Difference]: Finished difference Result 3110 states and 7090 transitions. [2022-01-18 05:16:52,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 05:16:52,487 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 [2022-01-18 05:16:52,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:52,490 INFO L225 Difference]: With dead ends: 3110 [2022-01-18 05:16:52,490 INFO L226 Difference]: Without dead ends: 2537 [2022-01-18 05:16:52,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-01-18 05:16:52,491 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 156 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:52,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 401 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:52,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2537 states. [2022-01-18 05:16:52,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2537 to 2237. [2022-01-18 05:16:52,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2237 states, 2236 states have (on average 2.2991949910554563) internal successors, (5141), 2236 states have internal predecessors, (5141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:52,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2237 states to 2237 states and 5141 transitions. [2022-01-18 05:16:52,512 INFO L78 Accepts]: Start accepts. Automaton has 2237 states and 5141 transitions. Word has length 48 [2022-01-18 05:16:52,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:52,512 INFO L470 AbstractCegarLoop]: Abstraction has 2237 states and 5141 transitions. [2022-01-18 05:16:52,512 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) [2022-01-18 05:16:52,512 INFO L276 IsEmpty]: Start isEmpty. Operand 2237 states and 5141 transitions. [2022-01-18 05:16:52,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:52,515 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:52,515 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] [2022-01-18 05:16:52,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-18 05:16:52,515 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:52,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:52,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1370728880, now seen corresponding path program 50 times [2022-01-18 05:16:52,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:52,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983473424] [2022-01-18 05:16:52,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:52,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:52,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:52,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:52,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983473424] [2022-01-18 05:16:52,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983473424] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:52,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:52,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 05:16:52,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787392244] [2022-01-18 05:16:52,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:52,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 05:16:52,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:52,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 05:16:52,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 05:16:52,619 INFO L87 Difference]: Start difference. First operand 2237 states and 5141 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 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) [2022-01-18 05:16:52,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:52,767 INFO L93 Difference]: Finished difference Result 2595 states and 5922 transitions. [2022-01-18 05:16:52,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 05:16:52,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 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 [2022-01-18 05:16:52,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:52,770 INFO L225 Difference]: With dead ends: 2595 [2022-01-18 05:16:52,771 INFO L226 Difference]: Without dead ends: 2390 [2022-01-18 05:16:52,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:16:52,771 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 65 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:52,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 260 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:52,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2022-01-18 05:16:52,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 2236. [2022-01-18 05:16:52,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2236 states, 2235 states have (on average 2.2970917225950784) internal successors, (5134), 2235 states have internal predecessors, (5134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:52,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 5134 transitions. [2022-01-18 05:16:52,795 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 5134 transitions. Word has length 48 [2022-01-18 05:16:52,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:52,795 INFO L470 AbstractCegarLoop]: Abstraction has 2236 states and 5134 transitions. [2022-01-18 05:16:52,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 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) [2022-01-18 05:16:52,795 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 5134 transitions. [2022-01-18 05:16:52,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:52,797 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:52,797 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] [2022-01-18 05:16:52,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-18 05:16:52,798 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:52,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:52,798 INFO L85 PathProgramCache]: Analyzing trace with hash -221290520, now seen corresponding path program 51 times [2022-01-18 05:16:52,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:52,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688496441] [2022-01-18 05:16:52,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:52,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:52,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:52,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:52,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:52,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688496441] [2022-01-18 05:16:52,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688496441] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:52,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:52,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:16:52,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774643467] [2022-01-18 05:16:52,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:52,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:16:52,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:52,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:16:52,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:16:52,900 INFO L87 Difference]: Start difference. First operand 2236 states and 5134 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) [2022-01-18 05:16:53,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:53,103 INFO L93 Difference]: Finished difference Result 2699 states and 6128 transitions. [2022-01-18 05:16:53,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 05:16:53,104 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 [2022-01-18 05:16:53,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:53,108 INFO L225 Difference]: With dead ends: 2699 [2022-01-18 05:16:53,108 INFO L226 Difference]: Without dead ends: 2496 [2022-01-18 05:16:53,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-01-18 05:16:53,108 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 176 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:53,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 304 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:53,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2022-01-18 05:16:53,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2190. [2022-01-18 05:16:53,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2190 states, 2189 states have (on average 2.2905436272270445) internal successors, (5014), 2189 states have internal predecessors, (5014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:53,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2190 states to 2190 states and 5014 transitions. [2022-01-18 05:16:53,134 INFO L78 Accepts]: Start accepts. Automaton has 2190 states and 5014 transitions. Word has length 48 [2022-01-18 05:16:53,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:53,134 INFO L470 AbstractCegarLoop]: Abstraction has 2190 states and 5014 transitions. [2022-01-18 05:16:53,134 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) [2022-01-18 05:16:53,134 INFO L276 IsEmpty]: Start isEmpty. Operand 2190 states and 5014 transitions. [2022-01-18 05:16:53,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:53,136 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:53,136 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] [2022-01-18 05:16:53,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-18 05:16:53,137 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:53,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:53,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1670100910, now seen corresponding path program 52 times [2022-01-18 05:16:53,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:53,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703508288] [2022-01-18 05:16:53,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:53,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:53,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:53,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:53,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703508288] [2022-01-18 05:16:53,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703508288] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:53,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:53,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:16:53,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871658204] [2022-01-18 05:16:53,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:53,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:16:53,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:53,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:16:53,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:16:53,254 INFO L87 Difference]: Start difference. First operand 2190 states and 5014 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) [2022-01-18 05:16:53,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:53,434 INFO L93 Difference]: Finished difference Result 2497 states and 5616 transitions. [2022-01-18 05:16:53,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 05:16:53,434 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 [2022-01-18 05:16:53,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:53,437 INFO L225 Difference]: With dead ends: 2497 [2022-01-18 05:16:53,437 INFO L226 Difference]: Without dead ends: 2099 [2022-01-18 05:16:53,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-01-18 05:16:53,437 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 92 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:53,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 379 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:53,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2099 states. [2022-01-18 05:16:53,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2099 to 2030. [2022-01-18 05:16:53,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2030 states, 2029 states have (on average 2.2720551996057172) internal successors, (4610), 2029 states have internal predecessors, (4610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:53,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2030 states to 2030 states and 4610 transitions. [2022-01-18 05:16:53,456 INFO L78 Accepts]: Start accepts. Automaton has 2030 states and 4610 transitions. Word has length 48 [2022-01-18 05:16:53,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:53,456 INFO L470 AbstractCegarLoop]: Abstraction has 2030 states and 4610 transitions. [2022-01-18 05:16:53,457 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) [2022-01-18 05:16:53,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2030 states and 4610 transitions. [2022-01-18 05:16:53,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:53,459 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:53,459 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] [2022-01-18 05:16:53,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-18 05:16:53,459 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:53,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:53,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1885258160, now seen corresponding path program 53 times [2022-01-18 05:16:53,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:53,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227676300] [2022-01-18 05:16:53,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:53,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:53,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:53,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:53,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227676300] [2022-01-18 05:16:53,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227676300] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:53,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:53,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:16:53,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293267996] [2022-01-18 05:16:53,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:53,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:16:53,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:53,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:16:53,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:16:53,568 INFO L87 Difference]: Start difference. First operand 2030 states and 4610 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) [2022-01-18 05:16:53,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:53,816 INFO L93 Difference]: Finished difference Result 2359 states and 5297 transitions. [2022-01-18 05:16:53,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 05:16:53,817 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 [2022-01-18 05:16:53,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:53,820 INFO L225 Difference]: With dead ends: 2359 [2022-01-18 05:16:53,820 INFO L226 Difference]: Without dead ends: 2069 [2022-01-18 05:16:53,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-01-18 05:16:53,820 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 107 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:53,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 453 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:16:53,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2069 states. [2022-01-18 05:16:53,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2069 to 1852. [2022-01-18 05:16:53,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1852 states, 1851 states have (on average 2.2744462452728254) internal successors, (4210), 1851 states have internal predecessors, (4210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:53,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1852 states to 1852 states and 4210 transitions. [2022-01-18 05:16:53,842 INFO L78 Accepts]: Start accepts. Automaton has 1852 states and 4210 transitions. Word has length 48 [2022-01-18 05:16:53,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:53,842 INFO L470 AbstractCegarLoop]: Abstraction has 1852 states and 4210 transitions. [2022-01-18 05:16:53,842 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) [2022-01-18 05:16:53,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1852 states and 4210 transitions. [2022-01-18 05:16:53,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:53,844 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:53,844 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] [2022-01-18 05:16:53,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-18 05:16:53,845 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:53,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:53,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1584892846, now seen corresponding path program 54 times [2022-01-18 05:16:53,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:53,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090741036] [2022-01-18 05:16:53,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:53,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:53,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:53,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:53,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090741036] [2022-01-18 05:16:53,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090741036] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:53,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:53,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:16:53,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045558106] [2022-01-18 05:16:53,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:53,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:16:53,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:53,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:16:53,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:16:53,962 INFO L87 Difference]: Start difference. First operand 1852 states and 4210 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) [2022-01-18 05:16:54,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:54,141 INFO L93 Difference]: Finished difference Result 1973 states and 4426 transitions. [2022-01-18 05:16:54,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 05:16:54,142 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 [2022-01-18 05:16:54,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:54,143 INFO L225 Difference]: With dead ends: 1973 [2022-01-18 05:16:54,143 INFO L226 Difference]: Without dead ends: 1816 [2022-01-18 05:16:54,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-01-18 05:16:54,145 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 90 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:54,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 332 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:54,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1816 states. [2022-01-18 05:16:54,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1816 to 1639. [2022-01-18 05:16:54,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1639 states, 1638 states have (on average 2.272893772893773) internal successors, (3723), 1638 states have internal predecessors, (3723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:54,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 3723 transitions. [2022-01-18 05:16:54,160 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 3723 transitions. Word has length 48 [2022-01-18 05:16:54,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:54,160 INFO L470 AbstractCegarLoop]: Abstraction has 1639 states and 3723 transitions. [2022-01-18 05:16:54,160 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) [2022-01-18 05:16:54,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 3723 transitions. [2022-01-18 05:16:54,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:54,162 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:54,163 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] [2022-01-18 05:16:54,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-18 05:16:54,163 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:54,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:54,163 INFO L85 PathProgramCache]: Analyzing trace with hash -2132644280, now seen corresponding path program 55 times [2022-01-18 05:16:54,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:54,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167726093] [2022-01-18 05:16:54,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:54,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:54,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:54,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:54,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167726093] [2022-01-18 05:16:54,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167726093] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:54,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:54,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:16:54,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530458000] [2022-01-18 05:16:54,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:54,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:16:54,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:54,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:16:54,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:16:54,268 INFO L87 Difference]: Start difference. First operand 1639 states and 3723 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) [2022-01-18 05:16:54,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:54,559 INFO L93 Difference]: Finished difference Result 2243 states and 5036 transitions. [2022-01-18 05:16:54,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-18 05:16:54,560 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 [2022-01-18 05:16:54,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:54,562 INFO L225 Difference]: With dead ends: 2243 [2022-01-18 05:16:54,562 INFO L226 Difference]: Without dead ends: 2174 [2022-01-18 05:16:54,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2022-01-18 05:16:54,562 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 209 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:54,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 516 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 05:16:54,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2174 states. [2022-01-18 05:16:54,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2174 to 1621. [2022-01-18 05:16:54,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1621 states, 1620 states have (on average 2.27037037037037) internal successors, (3678), 1620 states have internal predecessors, (3678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:54,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1621 states to 1621 states and 3678 transitions. [2022-01-18 05:16:54,577 INFO L78 Accepts]: Start accepts. Automaton has 1621 states and 3678 transitions. Word has length 48 [2022-01-18 05:16:54,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:54,577 INFO L470 AbstractCegarLoop]: Abstraction has 1621 states and 3678 transitions. [2022-01-18 05:16:54,577 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) [2022-01-18 05:16:54,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1621 states and 3678 transitions. [2022-01-18 05:16:54,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:54,579 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:54,579 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] [2022-01-18 05:16:54,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-18 05:16:54,579 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:54,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:54,579 INFO L85 PathProgramCache]: Analyzing trace with hash 252424138, now seen corresponding path program 56 times [2022-01-18 05:16:54,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:54,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335046262] [2022-01-18 05:16:54,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:54,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:54,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:54,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:54,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335046262] [2022-01-18 05:16:54,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335046262] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:54,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:54,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:16:54,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398532976] [2022-01-18 05:16:54,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:54,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:16:54,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:54,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:16:54,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:16:54,645 INFO L87 Difference]: Start difference. First operand 1621 states and 3678 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) [2022-01-18 05:16:54,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:54,818 INFO L93 Difference]: Finished difference Result 1769 states and 3934 transitions. [2022-01-18 05:16:54,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 05:16:54,819 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 [2022-01-18 05:16:54,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:54,820 INFO L225 Difference]: With dead ends: 1769 [2022-01-18 05:16:54,820 INFO L226 Difference]: Without dead ends: 1350 [2022-01-18 05:16:54,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-01-18 05:16:54,820 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 231 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:54,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 280 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:54,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2022-01-18 05:16:54,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 1052. [2022-01-18 05:16:54,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 1051 states have (on average 2.253092293054234) internal successors, (2368), 1051 states have internal predecessors, (2368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:54,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 2368 transitions. [2022-01-18 05:16:54,830 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 2368 transitions. Word has length 48 [2022-01-18 05:16:54,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:54,830 INFO L470 AbstractCegarLoop]: Abstraction has 1052 states and 2368 transitions. [2022-01-18 05:16:54,830 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) [2022-01-18 05:16:54,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 2368 transitions. [2022-01-18 05:16:54,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:54,831 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:54,832 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] [2022-01-18 05:16:54,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-18 05:16:54,832 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:54,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:54,832 INFO L85 PathProgramCache]: Analyzing trace with hash -881456816, now seen corresponding path program 57 times [2022-01-18 05:16:54,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:54,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905278993] [2022-01-18 05:16:54,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:54,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:54,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:54,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:54,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905278993] [2022-01-18 05:16:54,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905278993] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:54,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:54,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 05:16:54,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419867106] [2022-01-18 05:16:54,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:54,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 05:16:54,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:54,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 05:16:54,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-18 05:16:54,909 INFO L87 Difference]: Start difference. First operand 1052 states and 2368 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) [2022-01-18 05:16:55,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:55,038 INFO L93 Difference]: Finished difference Result 887 states and 1929 transitions. [2022-01-18 05:16:55,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 05:16:55,038 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 [2022-01-18 05:16:55,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:55,039 INFO L225 Difference]: With dead ends: 887 [2022-01-18 05:16:55,039 INFO L226 Difference]: Without dead ends: 758 [2022-01-18 05:16:55,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:16:55,039 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 38 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:55,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 218 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:55,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2022-01-18 05:16:55,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 758. [2022-01-18 05:16:55,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 757 states have (on average 2.151915455746367) internal successors, (1629), 757 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:55,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 1629 transitions. [2022-01-18 05:16:55,046 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 1629 transitions. Word has length 48 [2022-01-18 05:16:55,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:55,046 INFO L470 AbstractCegarLoop]: Abstraction has 758 states and 1629 transitions. [2022-01-18 05:16:55,046 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) [2022-01-18 05:16:55,046 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 1629 transitions. [2022-01-18 05:16:55,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:55,046 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:55,046 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] [2022-01-18 05:16:55,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-18 05:16:55,047 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:55,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:55,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1915961824, now seen corresponding path program 58 times [2022-01-18 05:16:55,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:55,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053772847] [2022-01-18 05:16:55,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:55,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:55,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:55,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:55,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053772847] [2022-01-18 05:16:55,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053772847] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:55,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:55,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 05:16:55,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515410440] [2022-01-18 05:16:55,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:55,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 05:16:55,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:55,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 05:16:55,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-01-18 05:16:55,190 INFO L87 Difference]: Start difference. First operand 758 states and 1629 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) [2022-01-18 05:16:55,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:55,385 INFO L93 Difference]: Finished difference Result 892 states and 1906 transitions. [2022-01-18 05:16:55,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 05:16:55,386 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 [2022-01-18 05:16:55,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:55,387 INFO L225 Difference]: With dead ends: 892 [2022-01-18 05:16:55,387 INFO L226 Difference]: Without dead ends: 854 [2022-01-18 05:16:55,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2022-01-18 05:16:55,387 INFO L933 BasicCegarLoop]: 68 mSDtfsCounter, 116 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:55,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 376 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:55,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2022-01-18 05:16:55,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 762. [2022-01-18 05:16:55,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 761 states have (on average 2.1537450722733245) internal successors, (1639), 761 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:55,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1639 transitions. [2022-01-18 05:16:55,395 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1639 transitions. Word has length 48 [2022-01-18 05:16:55,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:55,396 INFO L470 AbstractCegarLoop]: Abstraction has 762 states and 1639 transitions. [2022-01-18 05:16:55,396 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) [2022-01-18 05:16:55,396 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1639 transitions. [2022-01-18 05:16:55,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:55,397 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:55,397 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] [2022-01-18 05:16:55,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-18 05:16:55,397 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:55,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:55,397 INFO L85 PathProgramCache]: Analyzing trace with hash -132217086, now seen corresponding path program 59 times [2022-01-18 05:16:55,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:55,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090669339] [2022-01-18 05:16:55,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:55,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:55,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:55,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:55,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090669339] [2022-01-18 05:16:55,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090669339] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:55,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:55,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 05:16:55,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968361500] [2022-01-18 05:16:55,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:55,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 05:16:55,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:55,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 05:16:55,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-01-18 05:16:55,548 INFO L87 Difference]: Start difference. First operand 762 states and 1639 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) [2022-01-18 05:16:55,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:55,728 INFO L93 Difference]: Finished difference Result 824 states and 1764 transitions. [2022-01-18 05:16:55,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 05:16:55,728 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 [2022-01-18 05:16:55,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:55,729 INFO L225 Difference]: With dead ends: 824 [2022-01-18 05:16:55,729 INFO L226 Difference]: Without dead ends: 726 [2022-01-18 05:16:55,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-01-18 05:16:55,729 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 49 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:55,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 401 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:55,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2022-01-18 05:16:55,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 718. [2022-01-18 05:16:55,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 717 states have (on average 2.1352859135285915) internal successors, (1531), 717 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:55,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 1531 transitions. [2022-01-18 05:16:55,734 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 1531 transitions. Word has length 48 [2022-01-18 05:16:55,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:55,735 INFO L470 AbstractCegarLoop]: Abstraction has 718 states and 1531 transitions. [2022-01-18 05:16:55,735 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) [2022-01-18 05:16:55,735 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 1531 transitions. [2022-01-18 05:16:55,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:55,735 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:55,735 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] [2022-01-18 05:16:55,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-18 05:16:55,735 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:55,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:55,736 INFO L85 PathProgramCache]: Analyzing trace with hash 2031263338, now seen corresponding path program 60 times [2022-01-18 05:16:55,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:55,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803506648] [2022-01-18 05:16:55,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:55,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:55,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:55,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:55,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:55,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803506648] [2022-01-18 05:16:55,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803506648] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:55,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:55,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 05:16:55,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229512686] [2022-01-18 05:16:55,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:55,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 05:16:55,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:55,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 05:16:55,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:16:55,858 INFO L87 Difference]: Start difference. First operand 718 states and 1531 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) [2022-01-18 05:16:55,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:55,993 INFO L93 Difference]: Finished difference Result 842 states and 1792 transitions. [2022-01-18 05:16:55,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 05:16:55,993 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 [2022-01-18 05:16:55,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:55,994 INFO L225 Difference]: With dead ends: 842 [2022-01-18 05:16:55,995 INFO L226 Difference]: Without dead ends: 792 [2022-01-18 05:16:55,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-01-18 05:16:55,995 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 59 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:55,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 326 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:55,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2022-01-18 05:16:56,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 710. [2022-01-18 05:16:56,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 709 states have (on average 2.1354019746121295) internal successors, (1514), 709 states have internal predecessors, (1514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:56,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 1514 transitions. [2022-01-18 05:16:56,002 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 1514 transitions. Word has length 48 [2022-01-18 05:16:56,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:56,003 INFO L470 AbstractCegarLoop]: Abstraction has 710 states and 1514 transitions. [2022-01-18 05:16:56,003 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) [2022-01-18 05:16:56,003 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 1514 transitions. [2022-01-18 05:16:56,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:56,004 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:56,004 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] [2022-01-18 05:16:56,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-18 05:16:56,004 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:56,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:56,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1199569654, now seen corresponding path program 61 times [2022-01-18 05:16:56,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:56,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068175462] [2022-01-18 05:16:56,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:56,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:56,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:56,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:56,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068175462] [2022-01-18 05:16:56,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068175462] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:56,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:56,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 05:16:56,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653144067] [2022-01-18 05:16:56,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:56,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 05:16:56,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:56,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 05:16:56,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:16:56,138 INFO L87 Difference]: Start difference. First operand 710 states and 1514 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) [2022-01-18 05:16:56,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:56,253 INFO L93 Difference]: Finished difference Result 744 states and 1579 transitions. [2022-01-18 05:16:56,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 05:16:56,254 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 [2022-01-18 05:16:56,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:56,254 INFO L225 Difference]: With dead ends: 744 [2022-01-18 05:16:56,254 INFO L226 Difference]: Without dead ends: 714 [2022-01-18 05:16:56,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-01-18 05:16:56,255 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 69 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:56,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 323 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:56,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2022-01-18 05:16:56,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 706. [2022-01-18 05:16:56,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 705 states have (on average 2.1333333333333333) internal successors, (1504), 705 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:56,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 1504 transitions. [2022-01-18 05:16:56,262 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 1504 transitions. Word has length 48 [2022-01-18 05:16:56,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:56,262 INFO L470 AbstractCegarLoop]: Abstraction has 706 states and 1504 transitions. [2022-01-18 05:16:56,262 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) [2022-01-18 05:16:56,262 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 1504 transitions. [2022-01-18 05:16:56,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:56,263 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:56,263 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] [2022-01-18 05:16:56,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-18 05:16:56,263 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:56,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:56,264 INFO L85 PathProgramCache]: Analyzing trace with hash 661081684, now seen corresponding path program 62 times [2022-01-18 05:16:56,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:56,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052344464] [2022-01-18 05:16:56,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:56,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:56,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:56,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:56,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052344464] [2022-01-18 05:16:56,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052344464] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:56,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:56,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 05:16:56,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630667523] [2022-01-18 05:16:56,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:56,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 05:16:56,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:56,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 05:16:56,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-01-18 05:16:56,402 INFO L87 Difference]: Start difference. First operand 706 states and 1504 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) [2022-01-18 05:16:56,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:56,539 INFO L93 Difference]: Finished difference Result 676 states and 1437 transitions. [2022-01-18 05:16:56,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 05:16:56,539 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 [2022-01-18 05:16:56,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:56,540 INFO L225 Difference]: With dead ends: 676 [2022-01-18 05:16:56,540 INFO L226 Difference]: Without dead ends: 610 [2022-01-18 05:16:56,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-01-18 05:16:56,540 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 35 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:56,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 304 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:56,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-01-18 05:16:56,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 610. [2022-01-18 05:16:56,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 609 states have (on average 2.1379310344827585) internal successors, (1302), 609 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:56,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 1302 transitions. [2022-01-18 05:16:56,546 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 1302 transitions. Word has length 48 [2022-01-18 05:16:56,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:56,546 INFO L470 AbstractCegarLoop]: Abstraction has 610 states and 1302 transitions. [2022-01-18 05:16:56,546 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) [2022-01-18 05:16:56,546 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 1302 transitions. [2022-01-18 05:16:56,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:56,547 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:56,547 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] [2022-01-18 05:16:56,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-18 05:16:56,547 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:56,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:56,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1979077640, now seen corresponding path program 63 times [2022-01-18 05:16:56,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:56,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090685021] [2022-01-18 05:16:56,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:56,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:56,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:56,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:56,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:56,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090685021] [2022-01-18 05:16:56,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090685021] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:56,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:56,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 05:16:56,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836855909] [2022-01-18 05:16:56,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:56,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 05:16:56,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:56,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 05:16:56,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-01-18 05:16:56,662 INFO L87 Difference]: Start difference. First operand 610 states and 1302 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) [2022-01-18 05:16:56,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:56,762 INFO L93 Difference]: Finished difference Result 487 states and 1022 transitions. [2022-01-18 05:16:56,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 05:16:56,762 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 [2022-01-18 05:16:56,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:56,763 INFO L225 Difference]: With dead ends: 487 [2022-01-18 05:16:56,763 INFO L226 Difference]: Without dead ends: 363 [2022-01-18 05:16:56,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-01-18 05:16:56,763 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 48 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:56,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 152 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:56,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-01-18 05:16:56,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2022-01-18 05:16:56,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 362 states have (on average 2.1270718232044197) internal successors, (770), 362 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 05:16:56,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 770 transitions. [2022-01-18 05:16:56,767 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 770 transitions. Word has length 48 [2022-01-18 05:16:56,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:56,767 INFO L470 AbstractCegarLoop]: Abstraction has 363 states and 770 transitions. [2022-01-18 05:16:56,768 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) [2022-01-18 05:16:56,768 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 770 transitions. [2022-01-18 05:16:56,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 05:16:56,768 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 05:16:56,768 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] [2022-01-18 05:16:56,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-18 05:16:56,768 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-18 05:16:56,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 05:16:56,769 INFO L85 PathProgramCache]: Analyzing trace with hash -37994470, now seen corresponding path program 64 times [2022-01-18 05:16:56,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 05:16:56,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554483777] [2022-01-18 05:16:56,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 05:16:56,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 05:16:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 05:16:56,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 05:16:56,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 05:16:56,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554483777] [2022-01-18 05:16:56,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554483777] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 05:16:56,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 05:16:56,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 05:16:56,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551747556] [2022-01-18 05:16:56,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 05:16:56,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 05:16:56,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 05:16:56,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 05:16:56,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-18 05:16:56,857 INFO L87 Difference]: Start difference. First operand 363 states and 770 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) [2022-01-18 05:16:56,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 05:16:56,969 INFO L93 Difference]: Finished difference Result 343 states and 732 transitions. [2022-01-18 05:16:56,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 05:16:56,970 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 [2022-01-18 05:16:56,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 05:16:56,970 INFO L225 Difference]: With dead ends: 343 [2022-01-18 05:16:56,970 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 05:16:56,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-01-18 05:16:56,970 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 73 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 05:16:56,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 238 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 05:16:56,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 05:16:56,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 05:16:56,971 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) [2022-01-18 05:16:56,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 05:16:56,971 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2022-01-18 05:16:56,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 05:16:56,971 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 05:16:56,971 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) [2022-01-18 05:16:56,971 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 05:16:56,971 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 05:16:56,973 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-01-18 05:16:56,975 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-18 05:16:56,975 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-18 05:16:56,975 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-18 05:16:56,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-18 05:16:56,981 INFO L732 BasicCegarLoop]: Path program histogram: [64] [2022-01-18 05:16:56,982 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 05:16:56,982 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 05:16:56,984 INFO L202 PluginConnector]: Adding new model bakery-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 05:16:56 BasicIcfg [2022-01-18 05:16:56,984 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 05:16:56,984 INFO L158 Benchmark]: Toolchain (without parser) took 27390.26ms. Allocated memory was 377.5MB in the beginning and 866.1MB in the end (delta: 488.6MB). Free memory was 338.8MB in the beginning and 664.5MB in the end (delta: -325.7MB). Peak memory consumption was 166.0MB. Max. memory is 16.0GB. [2022-01-18 05:16:56,984 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 377.5MB. Free memory is still 340.0MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 05:16:56,984 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.44ms. Allocated memory is still 377.5MB. Free memory was 338.8MB in the beginning and 337.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 05:16:56,985 INFO L158 Benchmark]: Boogie Preprocessor took 12.82ms. Allocated memory is still 377.5MB. Free memory was 337.2MB in the beginning and 336.3MB in the end (delta: 825.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 05:16:56,985 INFO L158 Benchmark]: RCFGBuilder took 224.18ms. Allocated memory is still 377.5MB. Free memory was 336.2MB in the beginning and 326.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. [2022-01-18 05:16:56,985 INFO L158 Benchmark]: TraceAbstraction took 27125.42ms. Allocated memory was 377.5MB in the beginning and 866.1MB in the end (delta: 488.6MB). Free memory was 326.0MB in the beginning and 664.5MB in the end (delta: -338.5MB). Peak memory consumption was 151.3MB. Max. memory is 16.0GB. [2022-01-18 05:16:56,985 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 0.12ms. Allocated memory is still 377.5MB. Free memory is still 340.0MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 21.44ms. Allocated memory is still 377.5MB. Free memory was 338.8MB in the beginning and 337.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 12.82ms. Allocated memory is still 377.5MB. Free memory was 337.2MB in the beginning and 336.3MB in the end (delta: 825.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 224.18ms. Allocated memory is still 377.5MB. Free memory was 336.2MB in the beginning and 326.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. * TraceAbstraction took 27125.42ms. Allocated memory was 377.5MB in the beginning and 866.1MB in the end (delta: 488.6MB). Free memory was 326.0MB in the beginning and 664.5MB in the end (delta: -338.5MB). Peak memory consumption was 151.3MB. Max. memory is 16.0GB. * 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: 27.1s, OverallIterations: 64, TraceHistogramMax: 1, PathProgramHistogramMax: 64, EmptinessCheckTime: 0.3s, AutomataDifference: 15.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10331 SdHoareTripleChecker+Valid, 10.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10331 mSDsluCounter, 27541 SdHoareTripleChecker+Invalid, 8.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24971 mSDsCounter, 2461 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20003 IncrementalHoareTripleChecker+Invalid, 22464 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2461 mSolverCounterUnsat, 5609 mSDtfsCounter, 20003 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 846 GetRequests, 121 SyntacticMatches, 35 SemanticMatches, 690 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1328 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5804occurred in iteration=12, InterpolantAutomatonStates: 704, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.5s AutomataMinimizationTime, 64 MinimizatonAttempts, 55894 StatesRemovedByMinimization, 58 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 3072 NumberOfCodeBlocks, 3072 NumberOfCodeBlocksAsserted, 64 NumberOfCheckSat, 3008 ConstructedInterpolants, 0 QuantifiedInterpolants, 19424 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 64 InterpolantComputations, 64 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! [2022-01-18 05:16:57,015 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...