/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-MCRwithDepranks-BasicCegarLoop.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/lamport.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-16 13:58:57,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 13:58:57,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 13:58:57,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-16 13:58:57,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-16 13:58:57,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-16 13:58:57,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-16 13:58:57,614 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-16 13:58:57,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-16 13:58:57,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-16 13:58:57,622 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-16 13:58:57,623 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-16 13:58:57,623 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-16 13:58:57,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-16 13:58:57,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-16 13:58:57,630 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-16 13:58:57,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-16 13:58:57,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-16 13:58:57,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-16 13:58:57,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-16 13:58:57,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-16 13:58:57,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-16 13:58:57,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-16 13:58:57,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-16 13:58:57,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-16 13:58:57,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-16 13:58:57,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-16 13:58:57,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-16 13:58:57,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-16 13:58:57,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-16 13:58:57,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-16 13:58:57,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-16 13:58:57,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-16 13:58:57,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-16 13:58:57,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-16 13:58:57,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-16 13:58:57,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-16 13:58:57,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-16 13:58:57,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-16 13:58:57,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-16 13:58:57,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-16 13:58:57,657 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-MCRwithDepranks-BasicCegarLoop.epf [2022-02-16 13:58:57,690 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 13:58:57,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 13:58:57,691 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 13:58:57,691 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 13:58:57,691 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 13:58:57,692 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 13:58:57,692 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 13:58:57,692 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 13:58:57,692 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 13:58:57,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 13:58:57,693 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 13:58:57,693 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 13:58:57,693 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 13:58:57,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 13:58:57,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 13:58:57,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 13:58:57,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 13:58:57,693 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 13:58:57,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 13:58:57,694 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 13:58:57,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 13:58:57,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 13:58:57,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 13:58:57,694 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 13:58:57,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 13:58:57,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 13:58:57,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 13:58:57,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 13:58:57,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 13:58:57,697 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 13:58:57,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 13:58:57,697 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 13:58:57,697 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 13:58:57,697 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-16 13:58:57,698 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 13:58:57,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 13:58:57,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 13:58:57,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 13:58:57,936 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-16 13:58:57,937 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-16 13:58:57,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/lamport.wvr.bpl [2022-02-16 13:58:57,938 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/lamport.wvr.bpl' [2022-02-16 13:58:57,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 13:58:57,961 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-16 13:58:57,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 13:58:57,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 13:58:57,962 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 13:58:57,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:58:57" (1/1) ... [2022-02-16 13:58:57,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:58:57" (1/1) ... [2022-02-16 13:58:57,979 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-16 13:58:57,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 13:58:57,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 13:58:57,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 13:58:57,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 13:58:57,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:58:57" (1/1) ... [2022-02-16 13:58:57,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:58:57" (1/1) ... [2022-02-16 13:58:57,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:58:57" (1/1) ... [2022-02-16 13:58:57,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:58:57" (1/1) ... [2022-02-16 13:58:57,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:58:57" (1/1) ... [2022-02-16 13:58:57,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:58:57" (1/1) ... [2022-02-16 13:58:57,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:58:57" (1/1) ... [2022-02-16 13:58:57,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 13:58:57,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 13:58:57,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 13:58:57,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 13:58:57,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:58:57" (1/1) ... [2022-02-16 13:58:58,005 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 13:58:58,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 13:58:58,026 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) [2022-02-16 13:58:58,028 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 [2022-02-16 13:58:58,056 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-16 13:58:58,056 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-16 13:58:58,056 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-16 13:58:58,056 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-16 13:58:58,056 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-16 13:58:58,056 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-16 13:58:58,057 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-16 13:58:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 13:58:58,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 13:58:58,057 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-16 13:58:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-16 13:58:58,057 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-16 13:58:58,058 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 13:58:58,091 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 13:58:58,092 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 13:58:58,172 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 13:58:58,178 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 13:58:58,178 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-16 13:58:58,179 INFO L202 PluginConnector]: Adding new model lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 01:58:58 BoogieIcfgContainer [2022-02-16 13:58:58,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 13:58:58,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 13:58:58,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 13:58:58,193 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 13:58:58,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:58:57" (1/2) ... [2022-02-16 13:58:58,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18d9b2ae and model type lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 01:58:58, skipping insertion in model container [2022-02-16 13:58:58,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 01:58:58" (2/2) ... [2022-02-16 13:58:58,196 INFO L111 eAbstractionObserver]: Analyzing ICFG lamport.wvr.bpl [2022-02-16 13:58:58,202 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 13:58:58,203 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 13:58:58,203 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-16 13:58:58,203 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 13:58:58,232 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-16 13:58:58,266 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 13:58:58,272 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 [2022-02-16 13:58:58,273 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-16 13:58:58,283 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 41 transitions, 106 flow [2022-02-16 13:58:58,429 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 673 states, 672 states have (on average 2.5863095238095237) internal successors, (1738), 672 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:00,061 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 57405 transitions and produced 26354 states. [2022-02-16 13:59:00,232 INFO L276 IsEmpty]: Start isEmpty. Operand has 26354 states, 17042 states have (on average 1.6253960802722685) internal successors, (27700), 26353 states have internal predecessors, (27700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:00,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-16 13:59:00,727 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 13:59:00,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-16 13:59:00,728 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 13:59:00,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 13:59:00,738 INFO L85 PathProgramCache]: Analyzing trace with hash -968985013, now seen corresponding path program 1 times [2022-02-16 13:59:00,753 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 13:59:00,754 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061819938] [2022-02-16 13:59:00,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 13:59:00,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 13:59:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 13:59:00,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 13:59:00,987 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 13:59:00,987 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061819938] [2022-02-16 13:59:00,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061819938] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 13:59:00,988 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 13:59:00,988 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-16 13:59:00,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790836728] [2022-02-16 13:59:00,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 13:59:00,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-16 13:59:00,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 13:59:01,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-16 13:59:01,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-16 13:59:01,263 INFO L87 Difference]: Start difference. First operand has 26354 states, 17042 states have (on average 1.6253960802722685) internal successors, (27700), 26353 states have internal predecessors, (27700), 0 states have call successors, (0), 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 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:02,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 13:59:02,014 INFO L93 Difference]: Finished difference Result 28267 states and 29483 transitions. [2022-02-16 13:59:02,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-16 13:59:02,017 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-02-16 13:59:02,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 13:59:02,060 INFO L225 Difference]: With dead ends: 28267 [2022-02-16 13:59:02,060 INFO L226 Difference]: Without dead ends: 6318 [2022-02-16 13:59:02,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-02-16 13:59:02,064 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 83 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-16 13:59:02,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 333 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-16 13:59:02,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6318 states. [2022-02-16 13:59:02,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6318 to 216. [2022-02-16 13:59:02,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 215 states have (on average 1.3162790697674418) internal successors, (283), 215 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:02,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 283 transitions. [2022-02-16 13:59:02,274 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 283 transitions. Word has length 36 [2022-02-16 13:59:02,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 13:59:02,275 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 283 transitions. [2022-02-16 13:59:02,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:02,276 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 283 transitions. [2022-02-16 13:59:02,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-16 13:59:02,279 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 13:59:02,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-16 13:59:02,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-16 13:59:02,280 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 13:59:02,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 13:59:02,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1570137331, now seen corresponding path program 2 times [2022-02-16 13:59:02,284 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 13:59:02,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160994077] [2022-02-16 13:59:02,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 13:59:02,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 13:59:02,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 13:59:02,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 13:59:02,405 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 13:59:02,419 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160994077] [2022-02-16 13:59:02,419 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160994077] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 13:59:02,419 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 13:59:02,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-16 13:59:02,420 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27650211] [2022-02-16 13:59:02,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 13:59:02,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-16 13:59:02,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 13:59:02,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-16 13:59:02,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-16 13:59:02,423 INFO L87 Difference]: Start difference. First operand 216 states and 283 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:02,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 13:59:02,607 INFO L93 Difference]: Finished difference Result 250 states and 322 transitions. [2022-02-16 13:59:02,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-16 13:59:02,607 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-02-16 13:59:02,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 13:59:02,610 INFO L225 Difference]: With dead ends: 250 [2022-02-16 13:59:02,610 INFO L226 Difference]: Without dead ends: 238 [2022-02-16 13:59:02,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-02-16 13:59:02,613 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 72 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-16 13:59:02,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 255 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-16 13:59:02,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-02-16 13:59:02,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 214. [2022-02-16 13:59:02,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 213 states have (on average 1.3145539906103287) internal successors, (280), 213 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:02,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 280 transitions. [2022-02-16 13:59:02,633 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 280 transitions. Word has length 36 [2022-02-16 13:59:02,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 13:59:02,634 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 280 transitions. [2022-02-16 13:59:02,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:02,634 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 280 transitions. [2022-02-16 13:59:02,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-16 13:59:02,635 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 13:59:02,635 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-16 13:59:02,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-16 13:59:02,635 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 13:59:02,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 13:59:02,636 INFO L85 PathProgramCache]: Analyzing trace with hash -354670583, now seen corresponding path program 3 times [2022-02-16 13:59:02,636 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 13:59:02,636 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545102623] [2022-02-16 13:59:02,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 13:59:02,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 13:59:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 13:59:02,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 13:59:02,720 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 13:59:02,722 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545102623] [2022-02-16 13:59:02,724 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545102623] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 13:59:02,725 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 13:59:02,725 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-16 13:59:02,727 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680204987] [2022-02-16 13:59:02,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 13:59:02,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-16 13:59:02,732 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 13:59:02,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-16 13:59:02,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-16 13:59:02,733 INFO L87 Difference]: Start difference. First operand 214 states and 280 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:02,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 13:59:02,899 INFO L93 Difference]: Finished difference Result 265 states and 334 transitions. [2022-02-16 13:59:02,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-16 13:59:02,899 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-02-16 13:59:02,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 13:59:02,900 INFO L225 Difference]: With dead ends: 265 [2022-02-16 13:59:02,901 INFO L226 Difference]: Without dead ends: 234 [2022-02-16 13:59:02,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-02-16 13:59:02,903 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 90 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-16 13:59:02,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 279 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-16 13:59:02,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-02-16 13:59:02,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 202. [2022-02-16 13:59:02,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 201 states have (on average 1.318407960199005) internal successors, (265), 201 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:02,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 265 transitions. [2022-02-16 13:59:02,911 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 265 transitions. Word has length 36 [2022-02-16 13:59:02,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 13:59:02,911 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 265 transitions. [2022-02-16 13:59:02,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:02,911 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 265 transitions. [2022-02-16 13:59:02,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-16 13:59:02,914 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 13:59:02,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-16 13:59:02,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-16 13:59:02,914 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 13:59:02,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 13:59:02,915 INFO L85 PathProgramCache]: Analyzing trace with hash -882657269, now seen corresponding path program 4 times [2022-02-16 13:59:02,915 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 13:59:02,915 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390756537] [2022-02-16 13:59:02,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 13:59:02,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 13:59:02,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 13:59:02,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 13:59:02,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 13:59:02,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390756537] [2022-02-16 13:59:02,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390756537] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 13:59:02,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 13:59:02,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-16 13:59:02,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278593752] [2022-02-16 13:59:02,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 13:59:02,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-16 13:59:02,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 13:59:02,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-16 13:59:02,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-16 13:59:02,990 INFO L87 Difference]: Start difference. First operand 202 states and 265 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:03,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 13:59:03,078 INFO L93 Difference]: Finished difference Result 224 states and 288 transitions. [2022-02-16 13:59:03,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 13:59:03,078 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-02-16 13:59:03,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 13:59:03,080 INFO L225 Difference]: With dead ends: 224 [2022-02-16 13:59:03,080 INFO L226 Difference]: Without dead ends: 211 [2022-02-16 13:59:03,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-02-16 13:59:03,082 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 34 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-16 13:59:03,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 174 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-16 13:59:03,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-02-16 13:59:03,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 200. [2022-02-16 13:59:03,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 199 states have (on average 1.3165829145728642) internal successors, (262), 199 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:03,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 262 transitions. [2022-02-16 13:59:03,090 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 262 transitions. Word has length 36 [2022-02-16 13:59:03,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 13:59:03,091 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 262 transitions. [2022-02-16 13:59:03,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:03,092 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 262 transitions. [2022-02-16 13:59:03,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-16 13:59:03,092 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 13:59:03,092 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-16 13:59:03,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-16 13:59:03,094 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 13:59:03,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 13:59:03,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1230180723, now seen corresponding path program 5 times [2022-02-16 13:59:03,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 13:59:03,094 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620917845] [2022-02-16 13:59:03,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 13:59:03,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 13:59:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 13:59:03,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 13:59:03,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 13:59:03,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620917845] [2022-02-16 13:59:03,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620917845] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 13:59:03,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 13:59:03,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-16 13:59:03,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105686703] [2022-02-16 13:59:03,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 13:59:03,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-16 13:59:03,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 13:59:03,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-16 13:59:03,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-16 13:59:03,182 INFO L87 Difference]: Start difference. First operand 200 states and 262 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:03,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 13:59:03,364 INFO L93 Difference]: Finished difference Result 229 states and 291 transitions. [2022-02-16 13:59:03,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-16 13:59:03,365 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-02-16 13:59:03,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 13:59:03,366 INFO L225 Difference]: With dead ends: 229 [2022-02-16 13:59:03,366 INFO L226 Difference]: Without dead ends: 182 [2022-02-16 13:59:03,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2022-02-16 13:59:03,367 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 72 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-16 13:59:03,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 306 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-16 13:59:03,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-02-16 13:59:03,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 175. [2022-02-16 13:59:03,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 174 states have (on average 1.3275862068965518) internal successors, (231), 174 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:03,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 231 transitions. [2022-02-16 13:59:03,371 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 231 transitions. Word has length 36 [2022-02-16 13:59:03,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 13:59:03,371 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 231 transitions. [2022-02-16 13:59:03,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:03,383 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 231 transitions. [2022-02-16 13:59:03,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-16 13:59:03,384 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 13:59:03,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-16 13:59:03,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-16 13:59:03,384 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 13:59:03,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 13:59:03,385 INFO L85 PathProgramCache]: Analyzing trace with hash -436868143, now seen corresponding path program 6 times [2022-02-16 13:59:03,385 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 13:59:03,385 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514585394] [2022-02-16 13:59:03,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 13:59:03,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 13:59:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 13:59:03,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 13:59:03,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 13:59:03,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514585394] [2022-02-16 13:59:03,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514585394] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 13:59:03,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 13:59:03,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-16 13:59:03,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814952069] [2022-02-16 13:59:03,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 13:59:03,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-16 13:59:03,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 13:59:03,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-16 13:59:03,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-16 13:59:03,469 INFO L87 Difference]: Start difference. First operand 175 states and 231 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:03,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 13:59:03,588 INFO L93 Difference]: Finished difference Result 197 states and 252 transitions. [2022-02-16 13:59:03,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-16 13:59:03,589 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-02-16 13:59:03,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 13:59:03,590 INFO L225 Difference]: With dead ends: 197 [2022-02-16 13:59:03,590 INFO L226 Difference]: Without dead ends: 171 [2022-02-16 13:59:03,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-02-16 13:59:03,591 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 75 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-16 13:59:03,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 269 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-16 13:59:03,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-02-16 13:59:03,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 157. [2022-02-16 13:59:03,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 156 states have (on average 1.3269230769230769) internal successors, (207), 156 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:03,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 207 transitions. [2022-02-16 13:59:03,595 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 207 transitions. Word has length 36 [2022-02-16 13:59:03,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 13:59:03,595 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 207 transitions. [2022-02-16 13:59:03,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:03,595 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 207 transitions. [2022-02-16 13:59:03,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-16 13:59:03,596 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 13:59:03,596 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, 1, 1, 1, 1] [2022-02-16 13:59:03,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-16 13:59:03,596 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 13:59:03,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 13:59:03,597 INFO L85 PathProgramCache]: Analyzing trace with hash 593782097, now seen corresponding path program 7 times [2022-02-16 13:59:03,597 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 13:59:03,597 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470604991] [2022-02-16 13:59:03,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 13:59:03,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 13:59:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 13:59:03,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 13:59:03,673 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 13:59:03,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470604991] [2022-02-16 13:59:03,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470604991] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 13:59:03,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 13:59:03,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-16 13:59:03,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549415894] [2022-02-16 13:59:03,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 13:59:03,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-16 13:59:03,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 13:59:03,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-16 13:59:03,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-16 13:59:03,674 INFO L87 Difference]: Start difference. First operand 157 states and 207 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:03,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 13:59:03,816 INFO L93 Difference]: Finished difference Result 185 states and 236 transitions. [2022-02-16 13:59:03,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-16 13:59:03,816 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-02-16 13:59:03,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 13:59:03,817 INFO L225 Difference]: With dead ends: 185 [2022-02-16 13:59:03,817 INFO L226 Difference]: Without dead ends: 173 [2022-02-16 13:59:03,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2022-02-16 13:59:03,818 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 60 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-16 13:59:03,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 233 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-16 13:59:03,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-02-16 13:59:03,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 158. [2022-02-16 13:59:03,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 1.3248407643312101) internal successors, (208), 157 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:03,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 208 transitions. [2022-02-16 13:59:03,822 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 208 transitions. Word has length 36 [2022-02-16 13:59:03,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 13:59:03,822 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 208 transitions. [2022-02-16 13:59:03,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:03,822 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 208 transitions. [2022-02-16 13:59:03,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-16 13:59:03,822 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 13:59:03,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-16 13:59:03,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-16 13:59:03,823 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 13:59:03,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 13:59:03,823 INFO L85 PathProgramCache]: Analyzing trace with hash -370038797, now seen corresponding path program 8 times [2022-02-16 13:59:03,823 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 13:59:03,823 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140651282] [2022-02-16 13:59:03,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 13:59:03,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 13:59:03,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 13:59:03,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 13:59:03,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 13:59:03,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140651282] [2022-02-16 13:59:03,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140651282] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 13:59:03,883 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 13:59:03,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-16 13:59:03,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229240309] [2022-02-16 13:59:03,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 13:59:03,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-16 13:59:03,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 13:59:03,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-16 13:59:03,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-16 13:59:03,885 INFO L87 Difference]: Start difference. First operand 158 states and 208 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:03,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 13:59:03,962 INFO L93 Difference]: Finished difference Result 172 states and 222 transitions. [2022-02-16 13:59:03,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 13:59:03,963 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-02-16 13:59:03,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 13:59:03,964 INFO L225 Difference]: With dead ends: 172 [2022-02-16 13:59:03,964 INFO L226 Difference]: Without dead ends: 137 [2022-02-16 13:59:03,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-02-16 13:59:03,964 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 33 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 13:59:03,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 184 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 13:59:03,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-02-16 13:59:03,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 126. [2022-02-16 13:59:03,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 125 states have (on average 1.304) internal successors, (163), 125 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:03,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 163 transitions. [2022-02-16 13:59:03,968 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 163 transitions. Word has length 36 [2022-02-16 13:59:03,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 13:59:03,968 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 163 transitions. [2022-02-16 13:59:03,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:03,968 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 163 transitions. [2022-02-16 13:59:03,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-16 13:59:03,969 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 13:59:03,969 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-16 13:59:03,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-16 13:59:03,969 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 13:59:03,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 13:59:03,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1564238915, now seen corresponding path program 9 times [2022-02-16 13:59:03,970 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 13:59:03,970 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100838143] [2022-02-16 13:59:03,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 13:59:03,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 13:59:03,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 13:59:04,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 13:59:04,043 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 13:59:04,043 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100838143] [2022-02-16 13:59:04,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100838143] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 13:59:04,044 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 13:59:04,044 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-16 13:59:04,044 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255541342] [2022-02-16 13:59:04,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 13:59:04,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-16 13:59:04,044 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 13:59:04,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-16 13:59:04,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-16 13:59:04,045 INFO L87 Difference]: Start difference. First operand 126 states and 163 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:04,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 13:59:04,140 INFO L93 Difference]: Finished difference Result 239 states and 302 transitions. [2022-02-16 13:59:04,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 13:59:04,140 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-02-16 13:59:04,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 13:59:04,141 INFO L225 Difference]: With dead ends: 239 [2022-02-16 13:59:04,141 INFO L226 Difference]: Without dead ends: 208 [2022-02-16 13:59:04,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-02-16 13:59:04,142 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 96 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 13:59:04,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 215 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 13:59:04,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-02-16 13:59:04,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 110. [2022-02-16 13:59:04,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.275229357798165) internal successors, (139), 109 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:04,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 139 transitions. [2022-02-16 13:59:04,146 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 139 transitions. Word has length 36 [2022-02-16 13:59:04,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 13:59:04,147 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 139 transitions. [2022-02-16 13:59:04,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:04,147 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 139 transitions. [2022-02-16 13:59:04,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-16 13:59:04,147 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 13:59:04,147 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-16 13:59:04,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-16 13:59:04,148 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 13:59:04,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 13:59:04,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1574072383, now seen corresponding path program 10 times [2022-02-16 13:59:04,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 13:59:04,149 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978441461] [2022-02-16 13:59:04,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 13:59:04,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 13:59:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 13:59:04,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 13:59:04,162 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 13:59:04,162 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978441461] [2022-02-16 13:59:04,162 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978441461] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 13:59:04,162 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 13:59:04,162 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-16 13:59:04,162 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238020661] [2022-02-16 13:59:04,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 13:59:04,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-16 13:59:04,163 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 13:59:04,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-16 13:59:04,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-16 13:59:04,164 INFO L87 Difference]: Start difference. First operand 110 states and 139 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:04,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 13:59:04,172 INFO L93 Difference]: Finished difference Result 102 states and 127 transitions. [2022-02-16 13:59:04,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 13:59:04,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-02-16 13:59:04,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 13:59:04,173 INFO L225 Difference]: With dead ends: 102 [2022-02-16 13:59:04,173 INFO L226 Difference]: Without dead ends: 96 [2022-02-16 13:59:04,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-16 13:59:04,174 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 1 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 13:59:04,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 54 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 13:59:04,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-02-16 13:59:04,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2022-02-16 13:59:04,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.263157894736842) internal successors, (120), 95 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:04,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 120 transitions. [2022-02-16 13:59:04,177 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 120 transitions. Word has length 36 [2022-02-16 13:59:04,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 13:59:04,177 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 120 transitions. [2022-02-16 13:59:04,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:04,177 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 120 transitions. [2022-02-16 13:59:04,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-16 13:59:04,177 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 13:59:04,178 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-16 13:59:04,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-16 13:59:04,178 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 13:59:04,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 13:59:04,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1413843843, now seen corresponding path program 11 times [2022-02-16 13:59:04,179 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 13:59:04,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057052718] [2022-02-16 13:59:04,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 13:59:04,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 13:59:04,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 13:59:04,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 13:59:04,193 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 13:59:04,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057052718] [2022-02-16 13:59:04,193 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057052718] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 13:59:04,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 13:59:04,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-16 13:59:04,194 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453917903] [2022-02-16 13:59:04,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 13:59:04,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-16 13:59:04,194 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 13:59:04,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-16 13:59:04,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-16 13:59:04,195 INFO L87 Difference]: Start difference. First operand 96 states and 120 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:04,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 13:59:04,203 INFO L93 Difference]: Finished difference Result 94 states and 114 transitions. [2022-02-16 13:59:04,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 13:59:04,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-02-16 13:59:04,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 13:59:04,205 INFO L225 Difference]: With dead ends: 94 [2022-02-16 13:59:04,205 INFO L226 Difference]: Without dead ends: 94 [2022-02-16 13:59:04,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-16 13:59:04,205 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 3 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 13:59:04,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 58 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 13:59:04,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-02-16 13:59:04,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 93. [2022-02-16 13:59:04,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.2282608695652173) internal successors, (113), 92 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:04,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2022-02-16 13:59:04,208 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 36 [2022-02-16 13:59:04,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 13:59:04,209 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2022-02-16 13:59:04,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:04,209 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2022-02-16 13:59:04,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-16 13:59:04,209 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 13:59:04,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-16 13:59:04,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-16 13:59:04,210 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 13:59:04,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 13:59:04,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1975938463, now seen corresponding path program 12 times [2022-02-16 13:59:04,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 13:59:04,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758408579] [2022-02-16 13:59:04,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 13:59:04,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 13:59:04,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 13:59:04,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 13:59:04,304 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 13:59:04,304 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758408579] [2022-02-16 13:59:04,304 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758408579] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 13:59:04,304 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 13:59:04,304 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-16 13:59:04,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872240129] [2022-02-16 13:59:04,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 13:59:04,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-16 13:59:04,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 13:59:04,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-16 13:59:04,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-16 13:59:04,306 INFO L87 Difference]: Start difference. First operand 93 states and 113 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:04,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 13:59:04,421 INFO L93 Difference]: Finished difference Result 126 states and 155 transitions. [2022-02-16 13:59:04,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 13:59:04,422 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-02-16 13:59:04,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 13:59:04,423 INFO L225 Difference]: With dead ends: 126 [2022-02-16 13:59:04,423 INFO L226 Difference]: Without dead ends: 122 [2022-02-16 13:59:04,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2022-02-16 13:59:04,424 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 128 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 13:59:04,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 97 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 13:59:04,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-02-16 13:59:04,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 96. [2022-02-16 13:59:04,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.2210526315789474) internal successors, (116), 95 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:04,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 116 transitions. [2022-02-16 13:59:04,427 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 116 transitions. Word has length 36 [2022-02-16 13:59:04,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 13:59:04,427 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 116 transitions. [2022-02-16 13:59:04,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:04,427 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 116 transitions. [2022-02-16 13:59:04,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-16 13:59:04,428 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 13:59:04,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-16 13:59:04,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-16 13:59:04,428 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 13:59:04,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 13:59:04,429 INFO L85 PathProgramCache]: Analyzing trace with hash -708102753, now seen corresponding path program 13 times [2022-02-16 13:59:04,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 13:59:04,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035515019] [2022-02-16 13:59:04,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 13:59:04,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 13:59:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 13:59:04,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 13:59:04,503 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 13:59:04,503 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035515019] [2022-02-16 13:59:04,503 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035515019] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 13:59:04,503 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 13:59:04,503 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-16 13:59:04,503 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367623494] [2022-02-16 13:59:04,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 13:59:04,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-16 13:59:04,504 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 13:59:04,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-16 13:59:04,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-02-16 13:59:04,504 INFO L87 Difference]: Start difference. First operand 96 states and 116 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:04,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 13:59:04,613 INFO L93 Difference]: Finished difference Result 99 states and 118 transitions. [2022-02-16 13:59:04,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 13:59:04,614 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-02-16 13:59:04,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 13:59:04,614 INFO L225 Difference]: With dead ends: 99 [2022-02-16 13:59:04,614 INFO L226 Difference]: Without dead ends: 90 [2022-02-16 13:59:04,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2022-02-16 13:59:04,615 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 113 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-16 13:59:04,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 106 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-16 13:59:04,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-02-16 13:59:04,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-02-16 13:59:04,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 89 states have (on average 1.2247191011235956) internal successors, (109), 89 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:04,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 109 transitions. [2022-02-16 13:59:04,618 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 109 transitions. Word has length 36 [2022-02-16 13:59:04,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 13:59:04,618 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 109 transitions. [2022-02-16 13:59:04,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:04,618 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 109 transitions. [2022-02-16 13:59:04,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-16 13:59:04,619 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 13:59:04,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-16 13:59:04,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-16 13:59:04,619 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 13:59:04,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 13:59:04,620 INFO L85 PathProgramCache]: Analyzing trace with hash -637193125, now seen corresponding path program 14 times [2022-02-16 13:59:04,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 13:59:04,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862168125] [2022-02-16 13:59:04,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 13:59:04,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 13:59:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 13:59:04,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 13:59:04,661 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 13:59:04,661 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862168125] [2022-02-16 13:59:04,661 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862168125] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 13:59:04,661 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 13:59:04,661 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-16 13:59:04,662 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208823011] [2022-02-16 13:59:04,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 13:59:04,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-16 13:59:04,662 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 13:59:04,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-16 13:59:04,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-16 13:59:04,663 INFO L87 Difference]: Start difference. First operand 90 states and 109 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:04,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 13:59:04,706 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2022-02-16 13:59:04,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-16 13:59:04,706 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2022-02-16 13:59:04,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 13:59:04,706 INFO L225 Difference]: With dead ends: 39 [2022-02-16 13:59:04,706 INFO L226 Difference]: Without dead ends: 0 [2022-02-16 13:59:04,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-02-16 13:59:04,707 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 28 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 13:59:04,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 45 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 13:59:04,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-16 13:59:04,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-16 13:59:04,708 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) [2022-02-16 13:59:04,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-16 13:59:04,708 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2022-02-16 13:59:04,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 13:59:04,709 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-16 13:59:04,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 13:59:04,709 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-16 13:59:04,709 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-16 13:59:04,711 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-02-16 13:59:04,717 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-16 13:59:04,717 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-16 13:59:04,718 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-16 13:59:04,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-16 13:59:04,720 INFO L732 BasicCegarLoop]: Path program histogram: [14] [2022-02-16 13:59:04,724 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-16 13:59:04,724 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-16 13:59:04,729 INFO L202 PluginConnector]: Adding new model lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 01:59:04 BasicIcfg [2022-02-16 13:59:04,729 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-16 13:59:04,729 INFO L158 Benchmark]: Toolchain (without parser) took 6768.57ms. Allocated memory was 174.1MB in the beginning and 918.6MB in the end (delta: 744.5MB). Free memory was 135.1MB in the beginning and 793.2MB in the end (delta: -658.1MB). Peak memory consumption was 87.5MB. Max. memory is 8.0GB. [2022-02-16 13:59:04,730 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 174.1MB. Free memory is still 136.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 13:59:04,730 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.33ms. Allocated memory is still 174.1MB. Free memory was 135.1MB in the beginning and 133.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-16 13:59:04,730 INFO L158 Benchmark]: Boogie Preprocessor took 13.93ms. Allocated memory is still 174.1MB. Free memory was 133.5MB in the beginning and 132.6MB in the end (delta: 940.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 13:59:04,730 INFO L158 Benchmark]: RCFGBuilder took 182.46ms. Allocated memory is still 174.1MB. Free memory was 132.6MB in the beginning and 123.3MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-16 13:59:04,730 INFO L158 Benchmark]: TraceAbstraction took 6548.18ms. Allocated memory was 174.1MB in the beginning and 918.6MB in the end (delta: 744.5MB). Free memory was 122.8MB in the beginning and 793.2MB in the end (delta: -670.4MB). Peak memory consumption was 74.9MB. Max. memory is 8.0GB. [2022-02-16 13:59:04,732 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 0.13ms. Allocated memory is still 174.1MB. Free memory is still 136.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.33ms. Allocated memory is still 174.1MB. Free memory was 135.1MB in the beginning and 133.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.93ms. Allocated memory is still 174.1MB. Free memory was 133.5MB in the beginning and 132.6MB in the end (delta: 940.9kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 182.46ms. Allocated memory is still 174.1MB. Free memory was 132.6MB in the beginning and 123.3MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 6548.18ms. Allocated memory was 174.1MB in the beginning and 918.6MB in the end (delta: 744.5MB). Free memory was 122.8MB in the beginning and 793.2MB in the end (delta: -670.4MB). Peak memory consumption was 74.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 0 - 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: 71]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 71 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 6.5s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 14, EmptinessCheckTime: 0.7s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, PartialOrderReductionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 888 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 888 mSDsluCounter, 2608 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2411 mSDsCounter, 128 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1606 IncrementalHoareTripleChecker+Invalid, 1734 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 128 mSolverCounterUnsat, 599 mSDtfsCounter, 1606 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 180 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26354occurred in iteration=0, InterpolantAutomatonStates: 145, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 6341 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 504 NumberOfCodeBlocks, 504 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 490 ConstructedInterpolants, 0 QuantifiedInterpolants, 1469 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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! [2022-02-16 13:59:04,762 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...