/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 16:07:39,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 16:07:39,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 16:07:39,730 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 16:07:39,772 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-15 16:07:39,793 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 16:07:39,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 16:07:39,793 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 16:07:39,793 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 16:07:39,794 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 16:07:39,794 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 16:07:39,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 16:07:39,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 16:07:39,795 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 16:07:39,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 16:07:39,795 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 16:07:39,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 16:07:39,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 16:07:39,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 16:07:39,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 16:07:39,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 16:07:39,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 16:07:39,796 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 16:07:39,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 16:07:39,796 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 16:07:39,797 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 16:07:39,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 16:07:39,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 16:07:39,797 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 16:07:39,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 16:07:39,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 16:07:39,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 16:07:39,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 16:07:39,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 16:07:39,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 16:07:39,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 16:07:39,798 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 16:07:39,799 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 16:07:39,799 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 16:07:39,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 16:07:40,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 16:07:40,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 16:07:40,011 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-15 16:07:40,012 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-15 16:07:40,012 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-4.wvr.bpl [2022-03-15 16:07:40,013 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-4.wvr.bpl' [2022-03-15 16:07:40,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 16:07:40,030 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-15 16:07:40,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 16:07:40,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 16:07:40,030 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 16:07:40,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:07:40" (1/1) ... [2022-03-15 16:07:40,043 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:07:40" (1/1) ... [2022-03-15 16:07:40,047 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-15 16:07:40,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 16:07:40,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 16:07:40,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 16:07:40,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 16:07:40,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:07:40" (1/1) ... [2022-03-15 16:07:40,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:07:40" (1/1) ... [2022-03-15 16:07:40,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:07:40" (1/1) ... [2022-03-15 16:07:40,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:07:40" (1/1) ... [2022-03-15 16:07:40,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:07:40" (1/1) ... [2022-03-15 16:07:40,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:07:40" (1/1) ... [2022-03-15 16:07:40,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:07:40" (1/1) ... [2022-03-15 16:07:40,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 16:07:40,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 16:07:40,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 16:07:40,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 16:07:40,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:07:40" (1/1) ... [2022-03-15 16:07:40,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 16:07:40,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 16:07:40,088 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 16:07:40,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 16:07:40,114 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-15 16:07:40,114 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 16:07:40,114 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 16:07:40,114 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-15 16:07:40,114 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 16:07:40,114 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 16:07:40,115 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-15 16:07:40,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 16:07:40,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 16:07:40,115 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-15 16:07:40,115 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 16:07:40,115 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 16:07:40,116 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-15 16:07:40,116 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-15 16:07:40,116 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-15 16:07:40,117 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 16:07:40,150 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 16:07:40,151 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 16:07:40,271 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 16:07:40,281 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 16:07:40,281 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 16:07:40,283 INFO L202 PluginConnector]: Adding new model ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 04:07:40 BoogieIcfgContainer [2022-03-15 16:07:40,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 16:07:40,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 16:07:40,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 16:07:40,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 16:07:40,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 04:07:40" (1/2) ... [2022-03-15 16:07:40,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703d8672 and model type ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 04:07:40, skipping insertion in model container [2022-03-15 16:07:40,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 04:07:40" (2/2) ... [2022-03-15 16:07:40,311 INFO L111 eAbstractionObserver]: Analyzing ICFG ticket-4.wvr.bpl [2022-03-15 16:07:40,314 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 16:07:40,314 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 16:07:40,314 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 16:07:40,315 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 16:07:40,366 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-15 16:07:40,444 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 16:07:40,450 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 16:07:40,450 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-15 16:07:40,461 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 38 transitions, 108 flow [2022-03-15 16:07:40,596 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2076 states, 2075 states have (on average 3.3532530120481927) internal successors, (6958), 2075 states have internal predecessors, (6958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:40,603 INFO L276 IsEmpty]: Start isEmpty. Operand has 2076 states, 2075 states have (on average 3.3532530120481927) internal successors, (6958), 2075 states have internal predecessors, (6958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:40,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 16:07:40,624 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:40,625 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] [2022-03-15 16:07:40,625 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 16:07:40,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:40,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1859282422, now seen corresponding path program 1 times [2022-03-15 16:07:40,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:40,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808808308] [2022-03-15 16:07:40,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:40,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:40,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:40,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:40,814 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808808308] [2022-03-15 16:07:40,814 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808808308] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:40,814 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:40,814 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 16:07:40,815 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105772724] [2022-03-15 16:07:40,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:40,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 16:07:40,818 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:40,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 16:07:40,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-15 16:07:40,846 INFO L87 Difference]: Start difference. First operand has 2076 states, 2075 states have (on average 3.3532530120481927) internal successors, (6958), 2075 states have internal predecessors, (6958), 0 states have call successors, (0), 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 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:41,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:41,098 INFO L93 Difference]: Finished difference Result 4631 states and 14853 transitions. [2022-03-15 16:07:41,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 16:07:41,100 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-03-15 16:07:41,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:41,142 INFO L225 Difference]: With dead ends: 4631 [2022-03-15 16:07:41,142 INFO L226 Difference]: Without dead ends: 4631 [2022-03-15 16:07:41,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-03-15 16:07:41,147 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 54 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:41,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 88 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 16:07:41,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4631 states. [2022-03-15 16:07:41,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4631 to 2449. [2022-03-15 16:07:41,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2449 states, 2448 states have (on average 3.2834967320261437) internal successors, (8038), 2448 states have internal predecessors, (8038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:41,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2449 states to 2449 states and 8038 transitions. [2022-03-15 16:07:41,333 INFO L78 Accepts]: Start accepts. Automaton has 2449 states and 8038 transitions. Word has length 32 [2022-03-15 16:07:41,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:41,334 INFO L470 AbstractCegarLoop]: Abstraction has 2449 states and 8038 transitions. [2022-03-15 16:07:41,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:41,335 INFO L276 IsEmpty]: Start isEmpty. Operand 2449 states and 8038 transitions. [2022-03-15 16:07:41,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 16:07:41,341 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:41,341 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] [2022-03-15 16:07:41,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 16:07:41,341 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 16:07:41,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:41,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1037503212, now seen corresponding path program 2 times [2022-03-15 16:07:41,344 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:41,344 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712820703] [2022-03-15 16:07:41,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:41,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:41,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:41,421 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:41,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712820703] [2022-03-15 16:07:41,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712820703] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:41,421 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:41,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-15 16:07:41,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11728291] [2022-03-15 16:07:41,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:41,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 16:07:41,423 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:41,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 16:07:41,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 16:07:41,424 INFO L87 Difference]: Start difference. First operand 2449 states and 8038 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:41,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:41,489 INFO L93 Difference]: Finished difference Result 3557 states and 11583 transitions. [2022-03-15 16:07:41,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 16:07:41,490 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-03-15 16:07:41,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:41,500 INFO L225 Difference]: With dead ends: 3557 [2022-03-15 16:07:41,500 INFO L226 Difference]: Without dead ends: 2328 [2022-03-15 16:07:41,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 16:07:41,501 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 40 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:41,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 55 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 16:07:41,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2328 states. [2022-03-15 16:07:41,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2328 to 2328. [2022-03-15 16:07:41,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2328 states, 2327 states have (on average 3.1637301246239793) internal successors, (7362), 2327 states have internal predecessors, (7362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:41,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2328 states to 2328 states and 7362 transitions. [2022-03-15 16:07:41,556 INFO L78 Accepts]: Start accepts. Automaton has 2328 states and 7362 transitions. Word has length 32 [2022-03-15 16:07:41,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:41,557 INFO L470 AbstractCegarLoop]: Abstraction has 2328 states and 7362 transitions. [2022-03-15 16:07:41,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:41,558 INFO L276 IsEmpty]: Start isEmpty. Operand 2328 states and 7362 transitions. [2022-03-15 16:07:41,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 16:07:41,564 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:41,564 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] [2022-03-15 16:07:41,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 16:07:41,565 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 16:07:41,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:41,566 INFO L85 PathProgramCache]: Analyzing trace with hash 272388534, now seen corresponding path program 3 times [2022-03-15 16:07:41,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:41,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20281851] [2022-03-15 16:07:41,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:41,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:41,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:41,666 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:41,667 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20281851] [2022-03-15 16:07:41,667 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20281851] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:41,667 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:41,667 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 16:07:41,667 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832443387] [2022-03-15 16:07:41,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:41,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 16:07:41,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:41,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 16:07:41,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-15 16:07:41,668 INFO L87 Difference]: Start difference. First operand 2328 states and 7362 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:41,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:41,779 INFO L93 Difference]: Finished difference Result 3796 states and 11479 transitions. [2022-03-15 16:07:41,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 16:07:41,779 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-03-15 16:07:41,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:41,794 INFO L225 Difference]: With dead ends: 3796 [2022-03-15 16:07:41,795 INFO L226 Difference]: Without dead ends: 3752 [2022-03-15 16:07:41,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-03-15 16:07:41,800 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 56 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:41,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 78 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:07:41,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3752 states. [2022-03-15 16:07:41,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3752 to 2380. [2022-03-15 16:07:41,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2380 states, 2379 states have (on average 3.051282051282051) internal successors, (7259), 2379 states have internal predecessors, (7259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:41,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2380 states to 2380 states and 7259 transitions. [2022-03-15 16:07:41,860 INFO L78 Accepts]: Start accepts. Automaton has 2380 states and 7259 transitions. Word has length 32 [2022-03-15 16:07:41,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:41,860 INFO L470 AbstractCegarLoop]: Abstraction has 2380 states and 7259 transitions. [2022-03-15 16:07:41,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:41,861 INFO L276 IsEmpty]: Start isEmpty. Operand 2380 states and 7259 transitions. [2022-03-15 16:07:41,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 16:07:41,867 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:41,867 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] [2022-03-15 16:07:41,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 16:07:41,868 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 16:07:41,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:41,868 INFO L85 PathProgramCache]: Analyzing trace with hash -2016061640, now seen corresponding path program 4 times [2022-03-15 16:07:41,868 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:41,869 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090664752] [2022-03-15 16:07:41,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:41,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:41,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:41,943 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:41,943 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090664752] [2022-03-15 16:07:41,943 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090664752] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:41,943 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:41,943 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 16:07:41,943 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169093836] [2022-03-15 16:07:41,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:41,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 16:07:41,944 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:41,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 16:07:41,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-15 16:07:41,944 INFO L87 Difference]: Start difference. First operand 2380 states and 7259 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:42,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:42,061 INFO L93 Difference]: Finished difference Result 4075 states and 12124 transitions. [2022-03-15 16:07:42,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 16:07:42,061 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-03-15 16:07:42,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:42,085 INFO L225 Difference]: With dead ends: 4075 [2022-03-15 16:07:42,085 INFO L226 Difference]: Without dead ends: 4027 [2022-03-15 16:07:42,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:07:42,089 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 85 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:42,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 109 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:07:42,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4027 states. [2022-03-15 16:07:42,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4027 to 2348. [2022-03-15 16:07:42,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2348 states, 2347 states have (on average 3.033233915636983) internal successors, (7119), 2347 states have internal predecessors, (7119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:42,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2348 states to 2348 states and 7119 transitions. [2022-03-15 16:07:42,180 INFO L78 Accepts]: Start accepts. Automaton has 2348 states and 7119 transitions. Word has length 32 [2022-03-15 16:07:42,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:42,180 INFO L470 AbstractCegarLoop]: Abstraction has 2348 states and 7119 transitions. [2022-03-15 16:07:42,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:42,181 INFO L276 IsEmpty]: Start isEmpty. Operand 2348 states and 7119 transitions. [2022-03-15 16:07:42,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 16:07:42,185 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:42,186 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] [2022-03-15 16:07:42,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 16:07:42,186 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 16:07:42,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:42,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1363338346, now seen corresponding path program 5 times [2022-03-15 16:07:42,186 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:42,186 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490011608] [2022-03-15 16:07:42,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:42,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:42,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:42,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:42,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490011608] [2022-03-15 16:07:42,246 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490011608] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:42,246 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:42,246 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 16:07:42,246 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526163923] [2022-03-15 16:07:42,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:42,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 16:07:42,247 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:42,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 16:07:42,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:07:42,247 INFO L87 Difference]: Start difference. First operand 2348 states and 7119 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:42,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:42,432 INFO L93 Difference]: Finished difference Result 4192 states and 12353 transitions. [2022-03-15 16:07:42,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 16:07:42,432 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-03-15 16:07:42,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:42,448 INFO L225 Difference]: With dead ends: 4192 [2022-03-15 16:07:42,448 INFO L226 Difference]: Without dead ends: 4048 [2022-03-15 16:07:42,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:07:42,450 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 96 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:42,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 130 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:07:42,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4048 states. [2022-03-15 16:07:42,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4048 to 2389. [2022-03-15 16:07:42,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2389 states, 2388 states have (on average 3.009212730318258) internal successors, (7186), 2388 states have internal predecessors, (7186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:42,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2389 states to 2389 states and 7186 transitions. [2022-03-15 16:07:42,510 INFO L78 Accepts]: Start accepts. Automaton has 2389 states and 7186 transitions. Word has length 32 [2022-03-15 16:07:42,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:42,511 INFO L470 AbstractCegarLoop]: Abstraction has 2389 states and 7186 transitions. [2022-03-15 16:07:42,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:42,511 INFO L276 IsEmpty]: Start isEmpty. Operand 2389 states and 7186 transitions. [2022-03-15 16:07:42,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 16:07:42,516 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:42,516 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] [2022-03-15 16:07:42,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 16:07:42,516 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 16:07:42,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:42,516 INFO L85 PathProgramCache]: Analyzing trace with hash -968025832, now seen corresponding path program 6 times [2022-03-15 16:07:42,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:42,517 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245337864] [2022-03-15 16:07:42,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:42,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:42,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:42,556 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:42,556 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245337864] [2022-03-15 16:07:42,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245337864] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:42,556 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:42,556 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 16:07:42,557 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578288390] [2022-03-15 16:07:42,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:42,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 16:07:42,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:42,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 16:07:42,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-15 16:07:42,557 INFO L87 Difference]: Start difference. First operand 2389 states and 7186 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:42,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:42,681 INFO L93 Difference]: Finished difference Result 4046 states and 11863 transitions. [2022-03-15 16:07:42,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 16:07:42,681 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-03-15 16:07:42,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:42,691 INFO L225 Difference]: With dead ends: 4046 [2022-03-15 16:07:42,691 INFO L226 Difference]: Without dead ends: 4002 [2022-03-15 16:07:42,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:07:42,692 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 72 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:42,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 119 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:07:42,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4002 states. [2022-03-15 16:07:42,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4002 to 2467. [2022-03-15 16:07:42,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2467 states, 2466 states have (on average 2.981346309813463) internal successors, (7352), 2466 states have internal predecessors, (7352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:42,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 7352 transitions. [2022-03-15 16:07:42,789 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 7352 transitions. Word has length 32 [2022-03-15 16:07:42,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:42,790 INFO L470 AbstractCegarLoop]: Abstraction has 2467 states and 7352 transitions. [2022-03-15 16:07:42,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:42,790 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 7352 transitions. [2022-03-15 16:07:42,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 16:07:42,795 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:42,795 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] [2022-03-15 16:07:42,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 16:07:42,795 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 16:07:42,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:42,796 INFO L85 PathProgramCache]: Analyzing trace with hash 490021238, now seen corresponding path program 7 times [2022-03-15 16:07:42,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:42,796 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714305386] [2022-03-15 16:07:42,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:42,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:42,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:42,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:42,873 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:42,873 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714305386] [2022-03-15 16:07:42,873 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714305386] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:42,873 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:42,873 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 16:07:42,873 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274108789] [2022-03-15 16:07:42,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:42,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 16:07:42,874 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:42,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 16:07:42,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:07:42,874 INFO L87 Difference]: Start difference. First operand 2467 states and 7352 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:43,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:43,038 INFO L93 Difference]: Finished difference Result 4284 states and 12351 transitions. [2022-03-15 16:07:43,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 16:07:43,038 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-03-15 16:07:43,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:43,048 INFO L225 Difference]: With dead ends: 4284 [2022-03-15 16:07:43,048 INFO L226 Difference]: Without dead ends: 4176 [2022-03-15 16:07:43,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:07:43,049 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 97 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:43,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 180 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:07:43,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4176 states. [2022-03-15 16:07:43,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4176 to 2547. [2022-03-15 16:07:43,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2547 states, 2546 states have (on average 2.9571877454831106) internal successors, (7529), 2546 states have internal predecessors, (7529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:43,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2547 states to 2547 states and 7529 transitions. [2022-03-15 16:07:43,114 INFO L78 Accepts]: Start accepts. Automaton has 2547 states and 7529 transitions. Word has length 32 [2022-03-15 16:07:43,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:43,114 INFO L470 AbstractCegarLoop]: Abstraction has 2547 states and 7529 transitions. [2022-03-15 16:07:43,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:43,115 INFO L276 IsEmpty]: Start isEmpty. Operand 2547 states and 7529 transitions. [2022-03-15 16:07:43,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 16:07:43,119 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:43,119 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] [2022-03-15 16:07:43,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 16:07:43,120 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 16:07:43,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:43,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1381398922, now seen corresponding path program 8 times [2022-03-15 16:07:43,120 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:43,120 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466343563] [2022-03-15 16:07:43,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:43,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:43,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:43,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:43,155 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:43,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466343563] [2022-03-15 16:07:43,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466343563] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:43,156 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:43,156 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 16:07:43,156 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83258539] [2022-03-15 16:07:43,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:43,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 16:07:43,156 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:43,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 16:07:43,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-15 16:07:43,157 INFO L87 Difference]: Start difference. First operand 2547 states and 7529 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:43,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:43,270 INFO L93 Difference]: Finished difference Result 3902 states and 11122 transitions. [2022-03-15 16:07:43,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 16:07:43,270 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-03-15 16:07:43,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:43,279 INFO L225 Difference]: With dead ends: 3902 [2022-03-15 16:07:43,279 INFO L226 Difference]: Without dead ends: 3890 [2022-03-15 16:07:43,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:07:43,280 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 75 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:43,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 117 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:07:43,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3890 states. [2022-03-15 16:07:43,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3890 to 2497. [2022-03-15 16:07:43,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2497 states, 2496 states have (on average 2.890224358974359) internal successors, (7214), 2496 states have internal predecessors, (7214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:43,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2497 states to 2497 states and 7214 transitions. [2022-03-15 16:07:43,340 INFO L78 Accepts]: Start accepts. Automaton has 2497 states and 7214 transitions. Word has length 32 [2022-03-15 16:07:43,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:43,340 INFO L470 AbstractCegarLoop]: Abstraction has 2497 states and 7214 transitions. [2022-03-15 16:07:43,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:43,340 INFO L276 IsEmpty]: Start isEmpty. Operand 2497 states and 7214 transitions. [2022-03-15 16:07:43,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 16:07:43,345 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:43,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 16:07:43,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 16:07:43,345 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 16:07:43,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:43,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1848872406, now seen corresponding path program 9 times [2022-03-15 16:07:43,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:43,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101352741] [2022-03-15 16:07:43,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:43,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:43,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:43,386 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:43,386 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101352741] [2022-03-15 16:07:43,386 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101352741] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:43,386 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:43,386 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 16:07:43,386 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992882669] [2022-03-15 16:07:43,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:43,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 16:07:43,387 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:43,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 16:07:43,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:07:43,387 INFO L87 Difference]: Start difference. First operand 2497 states and 7214 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:43,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:43,546 INFO L93 Difference]: Finished difference Result 2921 states and 7631 transitions. [2022-03-15 16:07:43,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 16:07:43,547 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-03-15 16:07:43,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:43,553 INFO L225 Difference]: With dead ends: 2921 [2022-03-15 16:07:43,553 INFO L226 Difference]: Without dead ends: 2719 [2022-03-15 16:07:43,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:07:43,554 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 96 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:43,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 168 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:07:43,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2022-03-15 16:07:43,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 1853. [2022-03-15 16:07:43,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1853 states, 1852 states have (on average 2.6906047516198703) internal successors, (4983), 1852 states have internal predecessors, (4983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:43,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 4983 transitions. [2022-03-15 16:07:43,593 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 4983 transitions. Word has length 32 [2022-03-15 16:07:43,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:43,593 INFO L470 AbstractCegarLoop]: Abstraction has 1853 states and 4983 transitions. [2022-03-15 16:07:43,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:43,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 4983 transitions. [2022-03-15 16:07:43,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 16:07:43,596 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:43,596 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] [2022-03-15 16:07:43,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 16:07:43,596 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 16:07:43,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:43,597 INFO L85 PathProgramCache]: Analyzing trace with hash -970739558, now seen corresponding path program 10 times [2022-03-15 16:07:43,597 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:43,597 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151925459] [2022-03-15 16:07:43,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:43,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:43,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:43,641 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:43,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151925459] [2022-03-15 16:07:43,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151925459] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:43,641 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:43,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 16:07:43,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458384281] [2022-03-15 16:07:43,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:43,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 16:07:43,641 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:43,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 16:07:43,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-03-15 16:07:43,642 INFO L87 Difference]: Start difference. First operand 1853 states and 4983 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:43,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:43,764 INFO L93 Difference]: Finished difference Result 3038 states and 7985 transitions. [2022-03-15 16:07:43,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 16:07:43,765 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-03-15 16:07:43,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:43,771 INFO L225 Difference]: With dead ends: 3038 [2022-03-15 16:07:43,771 INFO L226 Difference]: Without dead ends: 2990 [2022-03-15 16:07:43,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:07:43,772 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 67 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:43,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 132 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:07:43,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2022-03-15 16:07:43,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 1829. [2022-03-15 16:07:43,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1829 states, 1828 states have (on average 2.6756017505470457) internal successors, (4891), 1828 states have internal predecessors, (4891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:43,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 4891 transitions. [2022-03-15 16:07:43,814 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 4891 transitions. Word has length 32 [2022-03-15 16:07:43,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:43,814 INFO L470 AbstractCegarLoop]: Abstraction has 1829 states and 4891 transitions. [2022-03-15 16:07:43,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:43,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 4891 transitions. [2022-03-15 16:07:43,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 16:07:43,817 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:43,817 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] [2022-03-15 16:07:43,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-15 16:07:43,817 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 16:07:43,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:43,818 INFO L85 PathProgramCache]: Analyzing trace with hash -318016264, now seen corresponding path program 11 times [2022-03-15 16:07:43,818 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:43,818 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672216736] [2022-03-15 16:07:43,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:43,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:43,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:43,857 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:43,857 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672216736] [2022-03-15 16:07:43,857 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672216736] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:43,857 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:43,857 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 16:07:43,858 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213125459] [2022-03-15 16:07:43,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:43,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 16:07:43,858 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:43,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 16:07:43,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:07:43,859 INFO L87 Difference]: Start difference. First operand 1829 states and 4891 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:44,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:44,028 INFO L93 Difference]: Finished difference Result 3002 states and 7863 transitions. [2022-03-15 16:07:44,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 16:07:44,029 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-03-15 16:07:44,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:44,034 INFO L225 Difference]: With dead ends: 3002 [2022-03-15 16:07:44,034 INFO L226 Difference]: Without dead ends: 2834 [2022-03-15 16:07:44,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:07:44,035 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 89 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:44,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 151 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:07:44,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2834 states. [2022-03-15 16:07:44,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2834 to 1757. [2022-03-15 16:07:44,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1757 states, 1756 states have (on average 2.665717539863326) internal successors, (4681), 1756 states have internal predecessors, (4681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:44,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1757 states to 1757 states and 4681 transitions. [2022-03-15 16:07:44,062 INFO L78 Accepts]: Start accepts. Automaton has 1757 states and 4681 transitions. Word has length 32 [2022-03-15 16:07:44,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:44,062 INFO L470 AbstractCegarLoop]: Abstraction has 1757 states and 4681 transitions. [2022-03-15 16:07:44,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:44,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1757 states and 4681 transitions. [2022-03-15 16:07:44,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 16:07:44,064 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:44,065 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] [2022-03-15 16:07:44,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-15 16:07:44,065 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 16:07:44,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:44,065 INFO L85 PathProgramCache]: Analyzing trace with hash -2076615436, now seen corresponding path program 12 times [2022-03-15 16:07:44,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:44,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704240796] [2022-03-15 16:07:44,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:44,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:44,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:44,103 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:44,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704240796] [2022-03-15 16:07:44,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704240796] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:44,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:44,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 16:07:44,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170245647] [2022-03-15 16:07:44,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:44,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 16:07:44,104 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:44,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 16:07:44,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:07:44,104 INFO L87 Difference]: Start difference. First operand 1757 states and 4681 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:44,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:44,295 INFO L93 Difference]: Finished difference Result 2972 states and 7731 transitions. [2022-03-15 16:07:44,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 16:07:44,295 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-03-15 16:07:44,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:44,301 INFO L225 Difference]: With dead ends: 2972 [2022-03-15 16:07:44,301 INFO L226 Difference]: Without dead ends: 2792 [2022-03-15 16:07:44,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-03-15 16:07:44,302 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 100 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:44,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 197 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:07:44,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2022-03-15 16:07:44,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 1715. [2022-03-15 16:07:44,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1714 states have (on average 2.6586931155192532) internal successors, (4557), 1714 states have internal predecessors, (4557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:44,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 4557 transitions. [2022-03-15 16:07:44,331 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 4557 transitions. Word has length 32 [2022-03-15 16:07:44,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:44,331 INFO L470 AbstractCegarLoop]: Abstraction has 1715 states and 4557 transitions. [2022-03-15 16:07:44,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:44,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 4557 transitions. [2022-03-15 16:07:44,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 16:07:44,334 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:44,334 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] [2022-03-15 16:07:44,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-15 16:07:44,334 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 16:07:44,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:44,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1009252986, now seen corresponding path program 13 times [2022-03-15 16:07:44,335 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:44,335 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468635108] [2022-03-15 16:07:44,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:44,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:44,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:44,364 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:44,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468635108] [2022-03-15 16:07:44,365 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468635108] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:44,365 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:44,365 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 16:07:44,365 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057197248] [2022-03-15 16:07:44,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:44,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 16:07:44,365 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:44,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 16:07:44,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-03-15 16:07:44,366 INFO L87 Difference]: Start difference. First operand 1715 states and 4557 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:44,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:44,497 INFO L93 Difference]: Finished difference Result 2909 states and 7590 transitions. [2022-03-15 16:07:44,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 16:07:44,497 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-03-15 16:07:44,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:44,503 INFO L225 Difference]: With dead ends: 2909 [2022-03-15 16:07:44,503 INFO L226 Difference]: Without dead ends: 2873 [2022-03-15 16:07:44,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:07:44,504 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 64 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:44,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 153 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:07:44,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2873 states. [2022-03-15 16:07:44,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2873 to 1632. [2022-03-15 16:07:44,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1632 states, 1631 states have (on average 2.6241569589209073) internal successors, (4280), 1631 states have internal predecessors, (4280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:44,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1632 states to 1632 states and 4280 transitions. [2022-03-15 16:07:44,534 INFO L78 Accepts]: Start accepts. Automaton has 1632 states and 4280 transitions. Word has length 32 [2022-03-15 16:07:44,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:44,534 INFO L470 AbstractCegarLoop]: Abstraction has 1632 states and 4280 transitions. [2022-03-15 16:07:44,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:44,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1632 states and 4280 transitions. [2022-03-15 16:07:44,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 16:07:44,537 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:44,537 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] [2022-03-15 16:07:44,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-15 16:07:44,537 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 16:07:44,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:44,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1827667240, now seen corresponding path program 14 times [2022-03-15 16:07:44,538 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:44,538 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458452755] [2022-03-15 16:07:44,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:44,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:44,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:44,572 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:44,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458452755] [2022-03-15 16:07:44,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458452755] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:44,572 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:44,572 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 16:07:44,572 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014387031] [2022-03-15 16:07:44,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:44,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 16:07:44,572 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:44,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 16:07:44,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:07:44,573 INFO L87 Difference]: Start difference. First operand 1632 states and 4280 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:44,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:44,714 INFO L93 Difference]: Finished difference Result 2785 states and 7226 transitions. [2022-03-15 16:07:44,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 16:07:44,714 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-03-15 16:07:44,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:44,718 INFO L225 Difference]: With dead ends: 2785 [2022-03-15 16:07:44,719 INFO L226 Difference]: Without dead ends: 2701 [2022-03-15 16:07:44,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:07:44,719 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 79 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:44,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 159 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:07:44,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2022-03-15 16:07:44,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 1572. [2022-03-15 16:07:44,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1571 states have (on average 2.602800763844685) internal successors, (4089), 1571 states have internal predecessors, (4089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:44,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 4089 transitions. [2022-03-15 16:07:44,745 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 4089 transitions. Word has length 32 [2022-03-15 16:07:44,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:44,745 INFO L470 AbstractCegarLoop]: Abstraction has 1572 states and 4089 transitions. [2022-03-15 16:07:44,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:44,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 4089 transitions. [2022-03-15 16:07:44,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 16:07:44,748 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:44,748 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] [2022-03-15 16:07:44,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-15 16:07:44,749 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 16:07:44,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:44,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1232827092, now seen corresponding path program 15 times [2022-03-15 16:07:44,749 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:44,749 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846782030] [2022-03-15 16:07:44,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:44,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:44,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:44,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:44,789 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:44,789 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846782030] [2022-03-15 16:07:44,789 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846782030] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:44,789 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:44,789 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 16:07:44,789 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098039996] [2022-03-15 16:07:44,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:44,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 16:07:44,790 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:44,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 16:07:44,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:07:44,790 INFO L87 Difference]: Start difference. First operand 1572 states and 4089 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:44,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:44,991 INFO L93 Difference]: Finished difference Result 2741 states and 7066 transitions. [2022-03-15 16:07:44,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 16:07:44,992 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-03-15 16:07:44,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:44,996 INFO L225 Difference]: With dead ends: 2741 [2022-03-15 16:07:44,996 INFO L226 Difference]: Without dead ends: 2642 [2022-03-15 16:07:44,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-03-15 16:07:44,996 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 96 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:44,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 225 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 16:07:45,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2642 states. [2022-03-15 16:07:45,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2642 to 1525. [2022-03-15 16:07:45,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1524 states have (on average 2.5990813648293964) internal successors, (3961), 1524 states have internal predecessors, (3961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:45,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 3961 transitions. [2022-03-15 16:07:45,022 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 3961 transitions. Word has length 32 [2022-03-15 16:07:45,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:45,022 INFO L470 AbstractCegarLoop]: Abstraction has 1525 states and 3961 transitions. [2022-03-15 16:07:45,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:45,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 3961 transitions. [2022-03-15 16:07:45,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 16:07:45,024 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:45,024 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] [2022-03-15 16:07:45,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-15 16:07:45,025 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 16:07:45,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:45,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1017116182, now seen corresponding path program 16 times [2022-03-15 16:07:45,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:45,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294723004] [2022-03-15 16:07:45,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:45,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:45,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:45,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:45,055 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:45,055 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294723004] [2022-03-15 16:07:45,055 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294723004] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:45,055 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:45,056 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 16:07:45,056 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289525570] [2022-03-15 16:07:45,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:45,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 16:07:45,056 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:45,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 16:07:45,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:07:45,056 INFO L87 Difference]: Start difference. First operand 1525 states and 3961 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:45,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:45,195 INFO L93 Difference]: Finished difference Result 2648 states and 6780 transitions. [2022-03-15 16:07:45,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 16:07:45,195 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-03-15 16:07:45,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:45,199 INFO L225 Difference]: With dead ends: 2648 [2022-03-15 16:07:45,199 INFO L226 Difference]: Without dead ends: 2576 [2022-03-15 16:07:45,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:07:45,200 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 90 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:45,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 151 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:07:45,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2576 states. [2022-03-15 16:07:45,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2576 to 1464. [2022-03-15 16:07:45,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1463 states have (on average 2.5598086124401913) internal successors, (3745), 1463 states have internal predecessors, (3745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:45,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 3745 transitions. [2022-03-15 16:07:45,222 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 3745 transitions. Word has length 32 [2022-03-15 16:07:45,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:45,222 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 3745 transitions. [2022-03-15 16:07:45,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:45,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 3745 transitions. [2022-03-15 16:07:45,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 16:07:45,232 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:45,232 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] [2022-03-15 16:07:45,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-15 16:07:45,232 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 16:07:45,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:45,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1433444212, now seen corresponding path program 17 times [2022-03-15 16:07:45,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:45,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360184054] [2022-03-15 16:07:45,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:45,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:45,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:45,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:45,291 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:45,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360184054] [2022-03-15 16:07:45,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360184054] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:45,291 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:45,291 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 16:07:45,291 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388471766] [2022-03-15 16:07:45,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:45,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 16:07:45,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:45,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 16:07:45,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:07:45,292 INFO L87 Difference]: Start difference. First operand 1464 states and 3745 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:45,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:45,483 INFO L93 Difference]: Finished difference Result 2588 states and 6572 transitions. [2022-03-15 16:07:45,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 16:07:45,484 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-03-15 16:07:45,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:45,487 INFO L225 Difference]: With dead ends: 2588 [2022-03-15 16:07:45,487 INFO L226 Difference]: Without dead ends: 2505 [2022-03-15 16:07:45,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-03-15 16:07:45,488 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 108 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:45,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 199 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:07:45,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2022-03-15 16:07:45,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 1418. [2022-03-15 16:07:45,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1418 states, 1417 states have (on average 2.5772759350741) internal successors, (3652), 1417 states have internal predecessors, (3652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:45,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 3652 transitions. [2022-03-15 16:07:45,509 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 3652 transitions. Word has length 32 [2022-03-15 16:07:45,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:45,509 INFO L470 AbstractCegarLoop]: Abstraction has 1418 states and 3652 transitions. [2022-03-15 16:07:45,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:45,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 3652 transitions. [2022-03-15 16:07:45,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 16:07:45,511 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:45,511 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] [2022-03-15 16:07:45,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-15 16:07:45,512 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 16:07:45,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:45,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1966189090, now seen corresponding path program 18 times [2022-03-15 16:07:45,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:45,512 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110494103] [2022-03-15 16:07:45,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:45,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:45,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:45,536 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:45,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110494103] [2022-03-15 16:07:45,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110494103] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:45,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:45,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 16:07:45,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277086677] [2022-03-15 16:07:45,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:45,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 16:07:45,536 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:45,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 16:07:45,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-15 16:07:45,537 INFO L87 Difference]: Start difference. First operand 1418 states and 3652 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:45,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:45,632 INFO L93 Difference]: Finished difference Result 1974 states and 4941 transitions. [2022-03-15 16:07:45,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 16:07:45,633 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-03-15 16:07:45,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:45,635 INFO L225 Difference]: With dead ends: 1974 [2022-03-15 16:07:45,635 INFO L226 Difference]: Without dead ends: 1914 [2022-03-15 16:07:45,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:07:45,636 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 72 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:45,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 106 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:07:45,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2022-03-15 16:07:45,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 982. [2022-03-15 16:07:45,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 981 states have (on average 2.509683995922528) internal successors, (2462), 981 states have internal predecessors, (2462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:45,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 2462 transitions. [2022-03-15 16:07:45,652 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 2462 transitions. Word has length 32 [2022-03-15 16:07:45,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:45,653 INFO L470 AbstractCegarLoop]: Abstraction has 982 states and 2462 transitions. [2022-03-15 16:07:45,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:45,653 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 2462 transitions. [2022-03-15 16:07:45,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 16:07:45,654 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:45,654 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] [2022-03-15 16:07:45,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-15 16:07:45,654 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 16:07:45,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:45,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1945609602, now seen corresponding path program 19 times [2022-03-15 16:07:45,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:45,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751244763] [2022-03-15 16:07:45,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:45,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:45,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:45,684 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:45,684 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751244763] [2022-03-15 16:07:45,684 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751244763] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:45,684 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:45,684 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 16:07:45,684 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037221765] [2022-03-15 16:07:45,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:45,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 16:07:45,686 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:45,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 16:07:45,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-03-15 16:07:45,686 INFO L87 Difference]: Start difference. First operand 982 states and 2462 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:45,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:45,788 INFO L93 Difference]: Finished difference Result 502 states and 1050 transitions. [2022-03-15 16:07:45,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 16:07:45,788 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-03-15 16:07:45,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:45,788 INFO L225 Difference]: With dead ends: 502 [2022-03-15 16:07:45,788 INFO L226 Difference]: Without dead ends: 234 [2022-03-15 16:07:45,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-03-15 16:07:45,789 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 61 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:45,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 126 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:07:45,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-03-15 16:07:45,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 162. [2022-03-15 16:07:45,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 161 states have (on average 2.1677018633540373) internal successors, (349), 161 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:45,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 349 transitions. [2022-03-15 16:07:45,792 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 349 transitions. Word has length 32 [2022-03-15 16:07:45,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:45,792 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 349 transitions. [2022-03-15 16:07:45,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:45,792 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 349 transitions. [2022-03-15 16:07:45,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 16:07:45,793 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 16:07:45,793 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] [2022-03-15 16:07:45,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-15 16:07:45,793 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 16:07:45,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 16:07:45,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1091032676, now seen corresponding path program 20 times [2022-03-15 16:07:45,793 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 16:07:45,793 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744342087] [2022-03-15 16:07:45,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 16:07:45,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 16:07:45,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 16:07:45,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 16:07:45,842 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 16:07:45,842 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744342087] [2022-03-15 16:07:45,842 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744342087] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 16:07:45,842 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 16:07:45,842 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 16:07:45,842 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941677979] [2022-03-15 16:07:45,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 16:07:45,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 16:07:45,843 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 16:07:45,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 16:07:45,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-03-15 16:07:45,843 INFO L87 Difference]: Start difference. First operand 162 states and 349 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:45,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 16:07:45,923 INFO L93 Difference]: Finished difference Result 105 states and 189 transitions. [2022-03-15 16:07:45,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 16:07:45,923 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-03-15 16:07:45,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 16:07:45,923 INFO L225 Difference]: With dead ends: 105 [2022-03-15 16:07:45,923 INFO L226 Difference]: Without dead ends: 0 [2022-03-15 16:07:45,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-03-15 16:07:45,924 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 38 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 16:07:45,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 84 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 16:07:45,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-15 16:07:45,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-15 16:07:45,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:45,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-15 16:07:45,925 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2022-03-15 16:07:45,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 16:07:45,925 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-15 16:07:45,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 16:07:45,925 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-15 16:07:45,925 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-15 16:07:45,927 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-15 16:07:45,927 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-15 16:07:45,927 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-15 16:07:45,927 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-15 16:07:45,927 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-15 16:07:45,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-15 16:07:45,930 INFO L732 BasicCegarLoop]: Path program histogram: [20] [2022-03-15 16:07:45,931 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 16:07:45,931 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 16:07:45,932 INFO L202 PluginConnector]: Adding new model ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 04:07:45 BasicIcfg [2022-03-15 16:07:45,933 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 16:07:45,933 INFO L158 Benchmark]: Toolchain (without parser) took 5903.34ms. Allocated memory was 197.1MB in the beginning and 475.0MB in the end (delta: 277.9MB). Free memory was 160.1MB in the beginning and 314.6MB in the end (delta: -154.5MB). Peak memory consumption was 124.4MB. Max. memory is 8.0GB. [2022-03-15 16:07:45,933 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 197.1MB. Free memory was 161.2MB in the beginning and 161.1MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 16:07:45,933 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.29ms. Allocated memory is still 197.1MB. Free memory was 160.0MB in the beginning and 158.5MB in the end (delta: 1.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-15 16:07:45,933 INFO L158 Benchmark]: Boogie Preprocessor took 17.01ms. Allocated memory is still 197.1MB. Free memory was 158.4MB in the beginning and 157.6MB in the end (delta: 800.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 16:07:45,933 INFO L158 Benchmark]: RCFGBuilder took 215.79ms. Allocated memory is still 197.1MB. Free memory was 157.5MB in the beginning and 147.6MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-15 16:07:45,934 INFO L158 Benchmark]: TraceAbstraction took 5648.33ms. Allocated memory was 197.1MB in the beginning and 475.0MB in the end (delta: 277.9MB). Free memory was 147.2MB in the beginning and 314.6MB in the end (delta: -167.5MB). Peak memory consumption was 110.7MB. Max. memory is 8.0GB. [2022-03-15 16:07:45,934 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 197.1MB. Free memory was 161.2MB in the beginning and 161.1MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.29ms. Allocated memory is still 197.1MB. Free memory was 160.0MB in the beginning and 158.5MB in the end (delta: 1.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.01ms. Allocated memory is still 197.1MB. Free memory was 158.4MB in the beginning and 157.6MB in the end (delta: 800.2kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 215.79ms. Allocated memory is still 197.1MB. Free memory was 157.5MB in the beginning and 147.6MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 5648.33ms. Allocated memory was 197.1MB in the beginning and 475.0MB in the end (delta: 277.9MB). Free memory was 147.2MB in the beginning and 314.6MB in the end (delta: -167.5MB). Peak memory consumption was 110.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 80]: 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 9 procedures, 68 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 20, EmptinessCheckTime: 0.1s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1535 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1535 mSDsluCounter, 2727 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3231 mSDsCounter, 578 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4829 IncrementalHoareTripleChecker+Invalid, 5407 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 578 mSolverCounterUnsat, 663 mSDtfsCounter, 4829 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 210 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2547occurred in iteration=7, InterpolantAutomatonStates: 171, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 20 MinimizatonAttempts, 22320 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 640 NumberOfCodeBlocks, 640 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 620 ConstructedInterpolants, 0 QuantifiedInterpolants, 2108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-15 16:07:45,963 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...