/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bakery-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 19:12:13,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 19:12:13,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 19:12:13,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-03 19:12:13,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-03 19:12:13,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-03 19:12:13,210 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-03 19:12:13,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-03 19:12:13,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-03 19:12:13,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-03 19:12:13,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-03 19:12:13,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-03 19:12:13,219 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-03 19:12:13,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-03 19:12:13,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-03 19:12:13,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-03 19:12:13,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-03 19:12:13,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-03 19:12:13,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-03 19:12:13,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-03 19:12:13,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-03 19:12:13,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-03 19:12:13,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-03 19:12:13,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-03 19:12:13,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-03 19:12:13,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-03 19:12:13,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-03 19:12:13,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-03 19:12:13,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-03 19:12:13,239 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-03 19:12:13,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-03 19:12:13,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-03 19:12:13,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-03 19:12:13,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-03 19:12:13,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-03 19:12:13,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-03 19:12:13,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-03 19:12:13,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-03 19:12:13,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 19:12:13,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 19:12:13,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 19:12:13,245 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-03 19:12:13,267 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 19:12:13,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 19:12:13,268 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 19:12:13,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 19:12:13,268 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 19:12:13,269 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 19:12:13,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 19:12:13,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 19:12:13,269 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 19:12:13,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 19:12:13,270 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 19:12:13,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 19:12:13,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 19:12:13,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 19:12:13,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 19:12:13,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 19:12:13,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 19:12:13,270 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 19:12:13,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 19:12:13,271 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 19:12:13,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 19:12:13,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 19:12:13,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 19:12:13,271 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 19:12:13,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 19:12:13,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 19:12:13,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 19:12:13,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 19:12:13,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 19:12:13,272 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 19:12:13,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 19:12:13,272 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 19:12:13,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 19:12:13,273 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 19:12:13,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 19:12:13,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 19:12:13,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 19:12:13,481 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-03 19:12:13,482 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-03 19:12:13,482 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bakery-4.wvr.bpl [2022-03-03 19:12:13,483 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bakery-4.wvr.bpl' [2022-03-03 19:12:13,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 19:12:13,505 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-03 19:12:13,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 19:12:13,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 19:12:13,506 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 19:12:13,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 07:12:13" (1/1) ... [2022-03-03 19:12:13,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 07:12:13" (1/1) ... [2022-03-03 19:12:13,527 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-03 19:12:13,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 19:12:13,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 19:12:13,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 19:12:13,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 19:12:13,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 07:12:13" (1/1) ... [2022-03-03 19:12:13,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 07:12:13" (1/1) ... [2022-03-03 19:12:13,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 07:12:13" (1/1) ... [2022-03-03 19:12:13,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 07:12:13" (1/1) ... [2022-03-03 19:12:13,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 07:12:13" (1/1) ... [2022-03-03 19:12:13,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 07:12:13" (1/1) ... [2022-03-03 19:12:13,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 07:12:13" (1/1) ... [2022-03-03 19:12:13,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 19:12:13,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 19:12:13,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 19:12:13,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 19:12:13,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 07:12:13" (1/1) ... [2022-03-03 19:12:13,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 19:12:13,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 19:12:13,573 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-03 19:12:13,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-03 19:12:13,612 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-03 19:12:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-03 19:12:13,612 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-03 19:12:13,613 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-03 19:12:13,613 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-03 19:12:13,613 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-03 19:12:13,613 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-03 19:12:13,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 19:12:13,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 19:12:13,613 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-03 19:12:13,614 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-03 19:12:13,614 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-03 19:12:13,615 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-03 19:12:13,615 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-03 19:12:13,615 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-03 19:12:13,616 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 19:12:13,655 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 19:12:13,657 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 19:12:13,770 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 19:12:13,776 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 19:12:13,776 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-03 19:12:13,777 INFO L202 PluginConnector]: Adding new model bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 07:12:13 BoogieIcfgContainer [2022-03-03 19:12:13,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 19:12:13,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 19:12:13,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 19:12:13,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 19:12:13,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 07:12:13" (1/2) ... [2022-03-03 19:12:13,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15af11e and model type bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 07:12:13, skipping insertion in model container [2022-03-03 19:12:13,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 07:12:13" (2/2) ... [2022-03-03 19:12:13,799 INFO L111 eAbstractionObserver]: Analyzing ICFG bakery-4.wvr.bpl [2022-03-03 19:12:13,802 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 19:12:13,802 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 19:12:13,802 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 19:12:13,802 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 19:12:13,903 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-03 19:12:13,938 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 19:12:13,943 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 19:12:13,943 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-03 19:12:13,957 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 94 places, 81 transitions, 194 flow [2022-03-03 19:12:16,284 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 93964 states, 93963 states have (on average 3.7646626863765524) internal successors, (353739), 93963 states have internal predecessors, (353739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:12:16,421 INFO L276 IsEmpty]: Start isEmpty. Operand has 93964 states, 93963 states have (on average 3.7646626863765524) internal successors, (353739), 93963 states have internal predecessors, (353739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:12:17,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-03 19:12:17,025 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 19:12:17,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 19:12:17,027 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 19:12:17,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 19:12:17,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1112279942, now seen corresponding path program 1 times [2022-03-03 19:12:17,036 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 19:12:17,036 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48929447] [2022-03-03 19:12:17,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 19:12:17,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 19:12:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 19:12:17,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 19:12:17,177 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 19:12:17,177 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48929447] [2022-03-03 19:12:17,183 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48929447] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 19:12:17,183 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 19:12:17,183 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 19:12:17,184 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681414811] [2022-03-03 19:12:17,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 19:12:17,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 19:12:17,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 19:12:17,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 19:12:17,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 19:12:17,374 INFO L87 Difference]: Start difference. First operand has 93964 states, 93963 states have (on average 3.7646626863765524) internal successors, (353739), 93963 states have internal predecessors, (353739), 0 states have call successors, (0), 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 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:12:18,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 19:12:18,603 INFO L93 Difference]: Finished difference Result 93964 states and 349059 transitions. [2022-03-03 19:12:18,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 19:12:18,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-03-03 19:12:18,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 19:12:19,448 INFO L225 Difference]: With dead ends: 93964 [2022-03-03 19:12:19,448 INFO L226 Difference]: Without dead ends: 93964 [2022-03-03 19:12:19,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 19:12:19,466 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 45 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 19:12:19,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 169 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 19:12:19,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93964 states. [2022-03-03 19:12:23,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93964 to 93964. [2022-03-03 19:12:23,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93964 states, 93963 states have (on average 3.714855847514447) internal successors, (349059), 93963 states have internal predecessors, (349059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:12:24,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93964 states to 93964 states and 349059 transitions. [2022-03-03 19:12:24,687 INFO L78 Accepts]: Start accepts. Automaton has 93964 states and 349059 transitions. Word has length 75 [2022-03-03 19:12:24,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 19:12:24,688 INFO L470 AbstractCegarLoop]: Abstraction has 93964 states and 349059 transitions. [2022-03-03 19:12:24,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:12:24,688 INFO L276 IsEmpty]: Start isEmpty. Operand 93964 states and 349059 transitions. [2022-03-03 19:12:25,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-03 19:12:25,259 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 19:12:25,259 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 19:12:25,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 19:12:25,260 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 19:12:25,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 19:12:25,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1370362522, now seen corresponding path program 2 times [2022-03-03 19:12:25,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 19:12:25,262 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708097666] [2022-03-03 19:12:25,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 19:12:25,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 19:12:25,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 19:12:25,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 19:12:25,338 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 19:12:25,338 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708097666] [2022-03-03 19:12:25,339 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708097666] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 19:12:25,339 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 19:12:25,339 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 19:12:25,339 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324566175] [2022-03-03 19:12:25,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 19:12:25,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 19:12:25,341 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 19:12:25,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 19:12:25,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 19:12:25,342 INFO L87 Difference]: Start difference. First operand 93964 states and 349059 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:12:26,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 19:12:26,061 INFO L93 Difference]: Finished difference Result 93964 states and 344379 transitions. [2022-03-03 19:12:26,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 19:12:26,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-03-03 19:12:26,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 19:12:26,786 INFO L225 Difference]: With dead ends: 93964 [2022-03-03 19:12:26,787 INFO L226 Difference]: Without dead ends: 93964 [2022-03-03 19:12:26,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 19:12:26,788 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 38 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 19:12:26,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 169 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 19:12:26,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93964 states. [2022-03-03 19:12:29,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93964 to 93964. [2022-03-03 19:12:29,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93964 states, 93963 states have (on average 3.6650490086523417) internal successors, (344379), 93963 states have internal predecessors, (344379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:12:30,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93964 states to 93964 states and 344379 transitions. [2022-03-03 19:12:30,156 INFO L78 Accepts]: Start accepts. Automaton has 93964 states and 344379 transitions. Word has length 75 [2022-03-03 19:12:30,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 19:12:30,157 INFO L470 AbstractCegarLoop]: Abstraction has 93964 states and 344379 transitions. [2022-03-03 19:12:30,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:12:30,157 INFO L276 IsEmpty]: Start isEmpty. Operand 93964 states and 344379 transitions. [2022-03-03 19:12:30,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-03 19:12:30,802 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 19:12:30,802 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 19:12:30,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 19:12:30,803 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 19:12:30,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 19:12:30,804 INFO L85 PathProgramCache]: Analyzing trace with hash -670880890, now seen corresponding path program 3 times [2022-03-03 19:12:30,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 19:12:30,805 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383893583] [2022-03-03 19:12:30,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 19:12:30,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 19:12:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 19:12:31,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 19:12:31,098 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 19:12:31,098 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383893583] [2022-03-03 19:12:31,098 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383893583] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 19:12:31,098 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 19:12:31,098 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-03 19:12:31,099 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774034012] [2022-03-03 19:12:31,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 19:12:31,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 19:12:31,099 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 19:12:31,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 19:12:31,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-03-03 19:12:31,100 INFO L87 Difference]: Start difference. First operand 93964 states and 344379 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:12:33,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 19:12:33,383 INFO L93 Difference]: Finished difference Result 195856 states and 711950 transitions. [2022-03-03 19:12:33,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 19:12:33,384 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-03-03 19:12:33,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 19:12:34,257 INFO L225 Difference]: With dead ends: 195856 [2022-03-03 19:12:34,257 INFO L226 Difference]: Without dead ends: 195856 [2022-03-03 19:12:34,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2022-03-03 19:12:34,261 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 415 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 19:12:34,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 653 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 19:12:35,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195856 states. [2022-03-03 19:12:38,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195856 to 121392. [2022-03-03 19:12:39,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121392 states, 121391 states have (on average 3.660048932787439) internal successors, (444297), 121391 states have internal predecessors, (444297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:12:40,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121392 states to 121392 states and 444297 transitions. [2022-03-03 19:12:40,136 INFO L78 Accepts]: Start accepts. Automaton has 121392 states and 444297 transitions. Word has length 75 [2022-03-03 19:12:40,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 19:12:40,137 INFO L470 AbstractCegarLoop]: Abstraction has 121392 states and 444297 transitions. [2022-03-03 19:12:40,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:12:40,137 INFO L276 IsEmpty]: Start isEmpty. Operand 121392 states and 444297 transitions. [2022-03-03 19:12:40,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-03 19:12:40,909 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 19:12:40,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 19:12:40,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-03 19:12:40,910 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 19:12:40,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 19:12:40,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1624840022, now seen corresponding path program 4 times [2022-03-03 19:12:40,910 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 19:12:40,911 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524653329] [2022-03-03 19:12:40,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 19:12:40,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 19:12:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 19:12:41,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 19:12:41,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 19:12:41,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524653329] [2022-03-03 19:12:41,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524653329] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 19:12:41,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 19:12:41,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 19:12:41,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044234361] [2022-03-03 19:12:41,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 19:12:41,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-03 19:12:41,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 19:12:41,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-03 19:12:41,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-03 19:12:41,091 INFO L87 Difference]: Start difference. First operand 121392 states and 444297 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:12:42,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 19:12:42,666 INFO L93 Difference]: Finished difference Result 169710 states and 622721 transitions. [2022-03-03 19:12:42,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-03 19:12:42,666 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-03-03 19:12:42,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 19:12:43,663 INFO L225 Difference]: With dead ends: 169710 [2022-03-03 19:12:43,663 INFO L226 Difference]: Without dead ends: 169710 [2022-03-03 19:12:43,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-03 19:12:43,670 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 146 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 19:12:43,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 486 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 19:12:43,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169710 states. [2022-03-03 19:12:47,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169710 to 141408. [2022-03-03 19:12:48,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141408 states, 141407 states have (on average 3.6437375801763703) internal successors, (515250), 141407 states have internal predecessors, (515250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:12:49,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141408 states to 141408 states and 515250 transitions. [2022-03-03 19:12:49,455 INFO L78 Accepts]: Start accepts. Automaton has 141408 states and 515250 transitions. Word has length 75 [2022-03-03 19:12:49,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 19:12:49,456 INFO L470 AbstractCegarLoop]: Abstraction has 141408 states and 515250 transitions. [2022-03-03 19:12:49,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:12:49,456 INFO L276 IsEmpty]: Start isEmpty. Operand 141408 states and 515250 transitions. [2022-03-03 19:12:50,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-03 19:12:50,353 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 19:12:50,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 19:12:50,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-03 19:12:50,354 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 19:12:50,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 19:12:50,355 INFO L85 PathProgramCache]: Analyzing trace with hash 780976654, now seen corresponding path program 5 times [2022-03-03 19:12:50,355 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 19:12:50,355 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113559346] [2022-03-03 19:12:50,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 19:12:50,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 19:12:50,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 19:12:50,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 19:12:50,718 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 19:12:50,718 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113559346] [2022-03-03 19:12:50,718 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113559346] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 19:12:50,718 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 19:12:50,718 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 19:12:50,718 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177313018] [2022-03-03 19:12:50,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 19:12:50,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 19:12:50,719 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 19:12:50,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 19:12:50,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-03-03 19:12:50,719 INFO L87 Difference]: Start difference. First operand 141408 states and 515250 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:12:58,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 19:12:58,511 INFO L93 Difference]: Finished difference Result 663964 states and 2450939 transitions. [2022-03-03 19:12:58,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-03 19:12:58,512 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-03-03 19:12:58,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 19:13:03,127 INFO L225 Difference]: With dead ends: 663964 [2022-03-03 19:13:03,127 INFO L226 Difference]: Without dead ends: 663964 [2022-03-03 19:13:03,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2022-03-03 19:13:03,128 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 1131 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-03 19:13:03,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1131 Valid, 1252 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 1070 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-03 19:13:04,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663964 states. [2022-03-03 19:13:15,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663964 to 141444. [2022-03-03 19:13:15,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141444 states, 141443 states have (on average 3.6438282559052055) internal successors, (515394), 141443 states have internal predecessors, (515394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:13:16,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141444 states to 141444 states and 515394 transitions. [2022-03-03 19:13:16,897 INFO L78 Accepts]: Start accepts. Automaton has 141444 states and 515394 transitions. Word has length 75 [2022-03-03 19:13:16,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 19:13:16,898 INFO L470 AbstractCegarLoop]: Abstraction has 141444 states and 515394 transitions. [2022-03-03 19:13:16,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:13:16,898 INFO L276 IsEmpty]: Start isEmpty. Operand 141444 states and 515394 transitions. [2022-03-03 19:13:17,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-03 19:13:17,763 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 19:13:17,763 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 19:13:17,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-03 19:13:17,763 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 19:13:17,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 19:13:17,764 INFO L85 PathProgramCache]: Analyzing trace with hash -172982478, now seen corresponding path program 6 times [2022-03-03 19:13:17,764 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 19:13:17,764 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735548450] [2022-03-03 19:13:17,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 19:13:17,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 19:13:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 19:13:17,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 19:13:17,978 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 19:13:17,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735548450] [2022-03-03 19:13:17,983 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735548450] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 19:13:17,983 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 19:13:17,983 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 19:13:17,983 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254023094] [2022-03-03 19:13:17,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 19:13:17,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 19:13:17,984 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 19:13:17,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 19:13:17,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-03-03 19:13:17,985 INFO L87 Difference]: Start difference. First operand 141444 states and 515394 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:13:19,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 19:13:19,856 INFO L93 Difference]: Finished difference Result 177126 states and 633441 transitions. [2022-03-03 19:13:19,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 19:13:19,857 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-03-03 19:13:19,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 19:13:21,453 INFO L225 Difference]: With dead ends: 177126 [2022-03-03 19:13:21,453 INFO L226 Difference]: Without dead ends: 175443 [2022-03-03 19:13:21,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2022-03-03 19:13:21,455 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 508 mSDsluCounter, 2007 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 2052 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 19:13:21,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [508 Valid, 2052 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 19:13:22,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175443 states. [2022-03-03 19:13:26,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175443 to 145294. [2022-03-03 19:13:26,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145294 states, 145293 states have (on average 3.635192335487601) internal successors, (528168), 145293 states have internal predecessors, (528168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:13:28,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145294 states to 145294 states and 528168 transitions. [2022-03-03 19:13:28,247 INFO L78 Accepts]: Start accepts. Automaton has 145294 states and 528168 transitions. Word has length 75 [2022-03-03 19:13:28,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 19:13:28,247 INFO L470 AbstractCegarLoop]: Abstraction has 145294 states and 528168 transitions. [2022-03-03 19:13:28,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:13:28,248 INFO L276 IsEmpty]: Start isEmpty. Operand 145294 states and 528168 transitions. [2022-03-03 19:13:28,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-03 19:13:28,723 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 19:13:28,723 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 19:13:28,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-03 19:13:28,723 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 19:13:28,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 19:13:28,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1232250834, now seen corresponding path program 7 times [2022-03-03 19:13:28,724 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 19:13:28,724 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667137778] [2022-03-03 19:13:28,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 19:13:28,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 19:13:28,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 19:13:28,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 19:13:28,953 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 19:13:28,953 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667137778] [2022-03-03 19:13:28,954 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667137778] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 19:13:28,954 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 19:13:28,954 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 19:13:28,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166383402] [2022-03-03 19:13:28,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 19:13:28,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 19:13:28,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 19:13:28,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 19:13:28,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-03-03 19:13:28,955 INFO L87 Difference]: Start difference. First operand 145294 states and 528168 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:13:34,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 19:13:34,437 INFO L93 Difference]: Finished difference Result 445412 states and 1640237 transitions. [2022-03-03 19:13:34,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 19:13:34,438 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-03-03 19:13:34,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 19:13:37,380 INFO L225 Difference]: With dead ends: 445412 [2022-03-03 19:13:37,381 INFO L226 Difference]: Without dead ends: 443738 [2022-03-03 19:13:37,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2022-03-03 19:13:37,395 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 1115 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 19:13:37,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1115 Valid, 807 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [334 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 19:13:38,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443738 states. [2022-03-03 19:13:46,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443738 to 150921. [2022-03-03 19:13:46,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150921 states, 150920 states have (on average 3.6398224224754836) internal successors, (549322), 150920 states have internal predecessors, (549322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:13:47,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150921 states to 150921 states and 549322 transitions. [2022-03-03 19:13:47,943 INFO L78 Accepts]: Start accepts. Automaton has 150921 states and 549322 transitions. Word has length 75 [2022-03-03 19:13:47,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 19:13:47,944 INFO L470 AbstractCegarLoop]: Abstraction has 150921 states and 549322 transitions. [2022-03-03 19:13:47,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:13:47,944 INFO L276 IsEmpty]: Start isEmpty. Operand 150921 states and 549322 transitions. [2022-03-03 19:13:48,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-03 19:13:48,402 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 19:13:48,402 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 19:13:48,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-03 19:13:48,402 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 19:13:48,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 19:13:48,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1730044720, now seen corresponding path program 8 times [2022-03-03 19:13:48,406 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 19:13:48,406 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951088176] [2022-03-03 19:13:48,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 19:13:48,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 19:13:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 19:13:48,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 19:13:48,559 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 19:13:48,559 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951088176] [2022-03-03 19:13:48,559 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951088176] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 19:13:48,559 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 19:13:48,559 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 19:13:48,559 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903518475] [2022-03-03 19:13:48,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 19:13:48,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 19:13:48,560 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 19:13:48,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 19:13:48,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-03 19:13:48,560 INFO L87 Difference]: Start difference. First operand 150921 states and 549322 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:13:53,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 19:13:53,162 INFO L93 Difference]: Finished difference Result 486864 states and 1789598 transitions. [2022-03-03 19:13:53,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-03 19:13:53,162 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-03-03 19:13:53,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 19:13:58,126 INFO L225 Difference]: With dead ends: 486864 [2022-03-03 19:13:58,126 INFO L226 Difference]: Without dead ends: 485568 [2022-03-03 19:13:58,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-03-03 19:13:58,127 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 678 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 19:13:58,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [678 Valid, 666 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 19:13:59,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485568 states. [2022-03-03 19:14:07,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485568 to 154950. [2022-03-03 19:14:07,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154950 states, 154949 states have (on average 3.643921548380435) internal successors, (564622), 154949 states have internal predecessors, (564622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:14:08,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154950 states to 154950 states and 564622 transitions. [2022-03-03 19:14:08,989 INFO L78 Accepts]: Start accepts. Automaton has 154950 states and 564622 transitions. Word has length 75 [2022-03-03 19:14:08,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 19:14:08,989 INFO L470 AbstractCegarLoop]: Abstraction has 154950 states and 564622 transitions. [2022-03-03 19:14:08,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:14:08,989 INFO L276 IsEmpty]: Start isEmpty. Operand 154950 states and 564622 transitions. [2022-03-03 19:14:09,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-03 19:14:09,482 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 19:14:09,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 19:14:09,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-03 19:14:09,482 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 19:14:09,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 19:14:09,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1537657874, now seen corresponding path program 9 times [2022-03-03 19:14:09,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 19:14:09,485 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098330743] [2022-03-03 19:14:09,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 19:14:09,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 19:14:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 19:14:09,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 19:14:09,699 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 19:14:09,699 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098330743] [2022-03-03 19:14:09,700 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098330743] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 19:14:09,700 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 19:14:09,700 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 19:14:09,700 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139342561] [2022-03-03 19:14:09,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 19:14:09,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 19:14:09,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 19:14:09,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 19:14:09,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-03-03 19:14:09,701 INFO L87 Difference]: Start difference. First operand 154950 states and 564622 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:14:14,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 19:14:14,826 INFO L93 Difference]: Finished difference Result 517053 states and 1897114 transitions. [2022-03-03 19:14:14,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-03 19:14:14,834 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-03-03 19:14:14,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 19:14:19,757 INFO L225 Difference]: With dead ends: 517053 [2022-03-03 19:14:19,757 INFO L226 Difference]: Without dead ends: 515947 [2022-03-03 19:14:19,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2022-03-03 19:14:19,759 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 823 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 19:14:19,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [823 Valid, 701 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 19:14:21,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515947 states. [2022-03-03 19:14:30,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515947 to 153928. [2022-03-03 19:14:30,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153928 states, 153927 states have (on average 3.6438246701358437) internal successors, (560883), 153927 states have internal predecessors, (560883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:14:31,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153928 states to 153928 states and 560883 transitions. [2022-03-03 19:14:31,568 INFO L78 Accepts]: Start accepts. Automaton has 153928 states and 560883 transitions. Word has length 75 [2022-03-03 19:14:31,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 19:14:31,568 INFO L470 AbstractCegarLoop]: Abstraction has 153928 states and 560883 transitions. [2022-03-03 19:14:31,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:14:31,568 INFO L276 IsEmpty]: Start isEmpty. Operand 153928 states and 560883 transitions. [2022-03-03 19:14:32,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-03 19:14:32,034 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 19:14:32,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 19:14:32,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-03 19:14:32,035 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 19:14:32,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 19:14:32,036 INFO L85 PathProgramCache]: Analyzing trace with hash 744081934, now seen corresponding path program 10 times [2022-03-03 19:14:32,036 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 19:14:32,036 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198459390] [2022-03-03 19:14:32,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 19:14:32,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 19:14:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 19:14:32,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 19:14:32,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 19:14:32,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198459390] [2022-03-03 19:14:32,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198459390] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 19:14:32,853 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 19:14:32,853 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 19:14:32,853 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394131300] [2022-03-03 19:14:32,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 19:14:32,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 19:14:32,853 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 19:14:32,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 19:14:32,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-03-03 19:14:32,854 INFO L87 Difference]: Start difference. First operand 153928 states and 560883 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:14:38,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 19:14:38,190 INFO L93 Difference]: Finished difference Result 539197 states and 1987922 transitions. [2022-03-03 19:14:38,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 19:14:38,191 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-03-03 19:14:38,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 19:14:44,559 INFO L225 Difference]: With dead ends: 539197 [2022-03-03 19:14:44,559 INFO L226 Difference]: Without dead ends: 538045 [2022-03-03 19:14:44,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2022-03-03 19:14:44,561 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 788 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 19:14:44,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [788 Valid, 815 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 19:14:46,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538045 states. [2022-03-03 19:14:55,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538045 to 153978. [2022-03-03 19:14:55,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153978 states, 153977 states have (on average 3.6435376712106353) internal successors, (561021), 153977 states have internal predecessors, (561021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:14:56,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153978 states to 153978 states and 561021 transitions. [2022-03-03 19:14:56,879 INFO L78 Accepts]: Start accepts. Automaton has 153978 states and 561021 transitions. Word has length 75 [2022-03-03 19:14:56,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 19:14:56,879 INFO L470 AbstractCegarLoop]: Abstraction has 153978 states and 561021 transitions. [2022-03-03 19:14:56,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:14:56,879 INFO L276 IsEmpty]: Start isEmpty. Operand 153978 states and 561021 transitions. [2022-03-03 19:14:57,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-03 19:14:57,646 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 19:14:57,646 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 19:14:57,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-03 19:14:57,647 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 19:14:57,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 19:14:57,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1690690352, now seen corresponding path program 11 times [2022-03-03 19:14:57,647 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 19:14:57,647 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482146880] [2022-03-03 19:14:57,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 19:14:57,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 19:14:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 19:14:57,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 19:14:57,793 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 19:14:57,793 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482146880] [2022-03-03 19:14:57,793 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482146880] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 19:14:57,793 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 19:14:57,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 19:14:57,794 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411431729] [2022-03-03 19:14:57,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 19:14:57,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 19:14:57,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 19:14:57,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 19:14:57,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-03-03 19:14:57,795 INFO L87 Difference]: Start difference. First operand 153978 states and 561021 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:15:04,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 19:15:04,165 INFO L93 Difference]: Finished difference Result 633194 states and 2324310 transitions. [2022-03-03 19:15:04,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-03 19:15:04,165 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-03-03 19:15:04,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 19:15:10,798 INFO L225 Difference]: With dead ends: 633194 [2022-03-03 19:15:10,799 INFO L226 Difference]: Without dead ends: 633194 [2022-03-03 19:15:10,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-03-03 19:15:10,799 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 816 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 19:15:10,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [816 Valid, 972 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 19:15:12,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633194 states. [2022-03-03 19:15:24,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633194 to 180960. [2022-03-03 19:15:25,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180960 states, 180959 states have (on average 3.634403373139772) internal successors, (657678), 180959 states have internal predecessors, (657678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:15:26,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180960 states to 180960 states and 657678 transitions. [2022-03-03 19:15:26,293 INFO L78 Accepts]: Start accepts. Automaton has 180960 states and 657678 transitions. Word has length 75 [2022-03-03 19:15:26,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 19:15:26,293 INFO L470 AbstractCegarLoop]: Abstraction has 180960 states and 657678 transitions. [2022-03-03 19:15:26,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:15:26,293 INFO L276 IsEmpty]: Start isEmpty. Operand 180960 states and 657678 transitions. [2022-03-03 19:15:27,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-03 19:15:27,074 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 19:15:27,075 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 19:15:27,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-03 19:15:27,075 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 19:15:27,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 19:15:27,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1509449644, now seen corresponding path program 12 times [2022-03-03 19:15:27,075 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 19:15:27,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195599189] [2022-03-03 19:15:27,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 19:15:27,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 19:15:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 19:15:27,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 19:15:27,161 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 19:15:27,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195599189] [2022-03-03 19:15:27,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195599189] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 19:15:27,161 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 19:15:27,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 19:15:27,161 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540719579] [2022-03-03 19:15:27,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 19:15:27,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 19:15:27,161 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 19:15:27,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 19:15:27,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-03-03 19:15:27,162 INFO L87 Difference]: Start difference. First operand 180960 states and 657678 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:15:29,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 19:15:29,126 INFO L93 Difference]: Finished difference Result 217570 states and 778690 transitions. [2022-03-03 19:15:29,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 19:15:29,127 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-03-03 19:15:29,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 19:15:30,931 INFO L225 Difference]: With dead ends: 217570 [2022-03-03 19:15:30,947 INFO L226 Difference]: Without dead ends: 215863 [2022-03-03 19:15:30,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2022-03-03 19:15:30,948 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 490 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 2061 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 19:15:30,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [490 Valid, 2061 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 19:15:31,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215863 states. [2022-03-03 19:15:37,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215863 to 181367. [2022-03-03 19:15:37,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181367 states, 181366 states have (on average 3.6315902649890277) internal successors, (658647), 181366 states have internal predecessors, (658647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:15:38,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181367 states to 181367 states and 658647 transitions. [2022-03-03 19:15:38,513 INFO L78 Accepts]: Start accepts. Automaton has 181367 states and 658647 transitions. Word has length 75 [2022-03-03 19:15:38,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 19:15:38,513 INFO L470 AbstractCegarLoop]: Abstraction has 181367 states and 658647 transitions. [2022-03-03 19:15:38,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:15:38,514 INFO L276 IsEmpty]: Start isEmpty. Operand 181367 states and 658647 transitions. [2022-03-03 19:15:39,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-03 19:15:39,275 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 19:15:39,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 19:15:39,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-03 19:15:39,276 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 19:15:39,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 19:15:39,276 INFO L85 PathProgramCache]: Analyzing trace with hash -16313200, now seen corresponding path program 13 times [2022-03-03 19:15:39,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 19:15:39,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362725350] [2022-03-03 19:15:39,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 19:15:39,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 19:15:39,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 19:15:39,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 19:15:39,602 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 19:15:39,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362725350] [2022-03-03 19:15:39,603 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362725350] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 19:15:39,603 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 19:15:39,603 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-03 19:15:39,603 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043901945] [2022-03-03 19:15:39,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 19:15:39,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 19:15:39,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 19:15:39,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 19:15:39,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-03-03 19:15:39,604 INFO L87 Difference]: Start difference. First operand 181367 states and 658647 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:15:44,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 19:15:44,827 INFO L93 Difference]: Finished difference Result 489063 states and 1790762 transitions. [2022-03-03 19:15:44,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-03 19:15:44,827 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-03-03 19:15:44,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 19:15:48,036 INFO L225 Difference]: With dead ends: 489063 [2022-03-03 19:15:48,036 INFO L226 Difference]: Without dead ends: 488629 [2022-03-03 19:15:48,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2022-03-03 19:15:48,038 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 724 mSDsluCounter, 1310 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 1341 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 19:15:48,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [724 Valid, 1341 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 19:15:49,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488629 states. [2022-03-03 19:15:58,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488629 to 205550. [2022-03-03 19:15:59,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205550 states, 205549 states have (on average 3.637074371561039) internal successors, (747597), 205549 states have internal predecessors, (747597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:16:02,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205550 states to 205550 states and 747597 transitions. [2022-03-03 19:16:02,585 INFO L78 Accepts]: Start accepts. Automaton has 205550 states and 747597 transitions. Word has length 75 [2022-03-03 19:16:02,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 19:16:02,585 INFO L470 AbstractCegarLoop]: Abstraction has 205550 states and 747597 transitions. [2022-03-03 19:16:02,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:16:02,585 INFO L276 IsEmpty]: Start isEmpty. Operand 205550 states and 747597 transitions. [2022-03-03 19:16:04,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-03 19:16:04,012 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 19:16:04,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 19:16:04,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-03 19:16:04,012 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 19:16:04,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 19:16:04,013 INFO L85 PathProgramCache]: Analyzing trace with hash 884164208, now seen corresponding path program 14 times [2022-03-03 19:16:04,013 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 19:16:04,013 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245765786] [2022-03-03 19:16:04,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 19:16:04,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 19:16:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 19:16:04,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 19:16:04,299 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 19:16:04,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245765786] [2022-03-03 19:16:04,299 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245765786] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 19:16:04,299 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 19:16:04,299 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 19:16:04,299 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406023745] [2022-03-03 19:16:04,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 19:16:04,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 19:16:04,300 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 19:16:04,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 19:16:04,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-03-03 19:16:04,300 INFO L87 Difference]: Start difference. First operand 205550 states and 747597 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:16:06,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 19:16:06,773 INFO L93 Difference]: Finished difference Result 259462 states and 936330 transitions. [2022-03-03 19:16:06,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-03 19:16:06,773 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-03-03 19:16:06,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 19:16:08,419 INFO L225 Difference]: With dead ends: 259462 [2022-03-03 19:16:08,419 INFO L226 Difference]: Without dead ends: 258608 [2022-03-03 19:16:08,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-03-03 19:16:08,420 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 265 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 19:16:08,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 415 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 19:16:09,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258608 states. [2022-03-03 19:16:15,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258608 to 205986. [2022-03-03 19:16:16,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205986 states, 205985 states have (on average 3.637929946355317) internal successors, (749359), 205985 states have internal predecessors, (749359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:16:17,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205986 states to 205986 states and 749359 transitions. [2022-03-03 19:16:17,735 INFO L78 Accepts]: Start accepts. Automaton has 205986 states and 749359 transitions. Word has length 75 [2022-03-03 19:16:17,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 19:16:17,736 INFO L470 AbstractCegarLoop]: Abstraction has 205986 states and 749359 transitions. [2022-03-03 19:16:17,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:16:17,736 INFO L276 IsEmpty]: Start isEmpty. Operand 205986 states and 749359 transitions. [2022-03-03 19:16:18,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-03 19:16:18,619 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 19:16:18,619 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 19:16:18,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-03 19:16:18,619 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 19:16:18,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 19:16:18,620 INFO L85 PathProgramCache]: Analyzing trace with hash -2029540688, now seen corresponding path program 15 times [2022-03-03 19:16:18,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 19:16:18,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316721272] [2022-03-03 19:16:18,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 19:16:18,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 19:16:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 19:16:18,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 19:16:18,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 19:16:18,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316721272] [2022-03-03 19:16:18,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316721272] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 19:16:18,889 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 19:16:18,890 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-03 19:16:18,890 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418626518] [2022-03-03 19:16:18,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 19:16:18,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 19:16:18,890 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 19:16:18,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 19:16:18,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-03-03 19:16:18,890 INFO L87 Difference]: Start difference. First operand 205986 states and 749359 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:16:26,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 19:16:26,729 INFO L93 Difference]: Finished difference Result 771835 states and 2842667 transitions. [2022-03-03 19:16:26,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 19:16:26,729 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-03-03 19:16:26,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 19:16:35,084 INFO L225 Difference]: With dead ends: 771835 [2022-03-03 19:16:35,085 INFO L226 Difference]: Without dead ends: 768629 [2022-03-03 19:16:35,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=224, Invalid=646, Unknown=0, NotChecked=0, Total=870 [2022-03-03 19:16:35,087 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 976 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 288 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 19:16:35,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [976 Valid, 1273 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [288 Valid, 1143 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 19:16:37,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768629 states. [2022-03-03 19:16:52,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768629 to 210562. [2022-03-03 19:16:53,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210562 states, 210561 states have (on average 3.637910154302079) internal successors, (766002), 210561 states have internal predecessors, (766002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:16:54,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210562 states to 210562 states and 766002 transitions. [2022-03-03 19:16:54,380 INFO L78 Accepts]: Start accepts. Automaton has 210562 states and 766002 transitions. Word has length 75 [2022-03-03 19:16:54,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 19:16:54,381 INFO L470 AbstractCegarLoop]: Abstraction has 210562 states and 766002 transitions. [2022-03-03 19:16:54,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 13 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:16:54,381 INFO L276 IsEmpty]: Start isEmpty. Operand 210562 states and 766002 transitions. [2022-03-03 19:16:55,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-03 19:16:55,699 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 19:16:55,699 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 19:16:55,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-03 19:16:55,699 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 19:16:55,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 19:16:55,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1129063280, now seen corresponding path program 16 times [2022-03-03 19:16:55,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 19:16:55,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155440205] [2022-03-03 19:16:55,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 19:16:55,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 19:16:55,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 19:16:55,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 19:16:55,970 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 19:16:55,970 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155440205] [2022-03-03 19:16:55,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155440205] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 19:16:55,971 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 19:16:55,971 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-03 19:16:55,971 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397752400] [2022-03-03 19:16:55,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 19:16:55,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 19:16:55,971 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 19:16:55,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 19:16:55,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-03 19:16:55,972 INFO L87 Difference]: Start difference. First operand 210562 states and 766002 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:16:59,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 19:16:59,316 INFO L93 Difference]: Finished difference Result 310152 states and 1130572 transitions. [2022-03-03 19:16:59,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-03 19:16:59,317 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-03-03 19:16:59,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 19:17:02,066 INFO L225 Difference]: With dead ends: 310152 [2022-03-03 19:17:02,066 INFO L226 Difference]: Without dead ends: 307953 [2022-03-03 19:17:02,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-03 19:17:02,067 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 241 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 19:17:02,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 319 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 19:17:02,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307953 states. [2022-03-03 19:17:09,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307953 to 219156. [2022-03-03 19:17:09,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219156 states, 219155 states have (on average 3.644452556409847) internal successors, (798700), 219155 states have internal predecessors, (798700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:17:11,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219156 states to 219156 states and 798700 transitions. [2022-03-03 19:17:11,306 INFO L78 Accepts]: Start accepts. Automaton has 219156 states and 798700 transitions. Word has length 75 [2022-03-03 19:17:11,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 19:17:11,306 INFO L470 AbstractCegarLoop]: Abstraction has 219156 states and 798700 transitions. [2022-03-03 19:17:11,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:17:11,306 INFO L276 IsEmpty]: Start isEmpty. Operand 219156 states and 798700 transitions. [2022-03-03 19:17:12,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-03 19:17:12,203 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 19:17:12,203 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 19:17:12,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-03 19:17:12,204 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 19:17:12,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 19:17:12,204 INFO L85 PathProgramCache]: Analyzing trace with hash 652703154, now seen corresponding path program 17 times [2022-03-03 19:17:12,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 19:17:12,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145404664] [2022-03-03 19:17:12,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 19:17:12,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 19:17:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 19:17:12,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 19:17:12,573 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 19:17:12,573 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145404664] [2022-03-03 19:17:12,573 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145404664] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 19:17:12,573 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 19:17:12,573 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 19:17:12,573 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580103612] [2022-03-03 19:17:12,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 19:17:12,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-03 19:17:12,574 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 19:17:12,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-03 19:17:12,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-03-03 19:17:12,574 INFO L87 Difference]: Start difference. First operand 219156 states and 798700 transitions. Second operand has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:17:15,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 19:17:15,480 INFO L93 Difference]: Finished difference Result 289710 states and 1048004 transitions. [2022-03-03 19:17:15,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 19:17:15,480 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-03-03 19:17:15,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 19:17:18,048 INFO L225 Difference]: With dead ends: 289710 [2022-03-03 19:17:18,048 INFO L226 Difference]: Without dead ends: 287891 [2022-03-03 19:17:18,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2022-03-03 19:17:18,049 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 402 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 19:17:18,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [402 Valid, 968 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 19:17:19,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287891 states. [2022-03-03 19:17:26,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287891 to 220554. [2022-03-03 19:17:26,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220554 states, 220553 states have (on average 3.6438452435469024) internal successors, (803661), 220553 states have internal predecessors, (803661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:17:28,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220554 states to 220554 states and 803661 transitions. [2022-03-03 19:17:28,345 INFO L78 Accepts]: Start accepts. Automaton has 220554 states and 803661 transitions. Word has length 75 [2022-03-03 19:17:28,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 19:17:28,345 INFO L470 AbstractCegarLoop]: Abstraction has 220554 states and 803661 transitions. [2022-03-03 19:17:28,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:17:28,345 INFO L276 IsEmpty]: Start isEmpty. Operand 220554 states and 803661 transitions. [2022-03-03 19:17:29,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-03 19:17:29,099 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 19:17:29,099 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 19:17:29,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-03 19:17:29,100 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 19:17:29,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 19:17:29,100 INFO L85 PathProgramCache]: Analyzing trace with hash 730447634, now seen corresponding path program 18 times [2022-03-03 19:17:29,100 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 19:17:29,100 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047036134] [2022-03-03 19:17:29,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 19:17:29,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 19:17:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 19:17:29,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 19:17:29,158 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 19:17:29,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047036134] [2022-03-03 19:17:29,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047036134] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 19:17:29,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 19:17:29,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 19:17:29,158 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854392908] [2022-03-03 19:17:29,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 19:17:29,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-03 19:17:29,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 19:17:29,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-03 19:17:29,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-03-03 19:17:29,159 INFO L87 Difference]: Start difference. First operand 220554 states and 803661 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:17:31,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 19:17:31,523 INFO L93 Difference]: Finished difference Result 254143 states and 922729 transitions. [2022-03-03 19:17:31,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 19:17:31,523 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-03-03 19:17:31,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 19:17:33,138 INFO L225 Difference]: With dead ends: 254143 [2022-03-03 19:17:33,138 INFO L226 Difference]: Without dead ends: 251601 [2022-03-03 19:17:33,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2022-03-03 19:17:33,139 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 231 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 19:17:33,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 243 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 19:17:33,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251601 states. [2022-03-03 19:17:40,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251601 to 204520. [2022-03-03 19:17:41,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204520 states, 204519 states have (on average 3.646521839046739) internal successors, (745783), 204519 states have internal predecessors, (745783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:17:42,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204520 states to 204520 states and 745783 transitions. [2022-03-03 19:17:42,488 INFO L78 Accepts]: Start accepts. Automaton has 204520 states and 745783 transitions. Word has length 75 [2022-03-03 19:17:42,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 19:17:42,488 INFO L470 AbstractCegarLoop]: Abstraction has 204520 states and 745783 transitions. [2022-03-03 19:17:42,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:17:42,488 INFO L276 IsEmpty]: Start isEmpty. Operand 204520 states and 745783 transitions. [2022-03-03 19:17:43,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-03 19:17:43,348 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 19:17:43,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 19:17:43,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-03 19:17:43,349 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 19:17:43,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 19:17:43,375 INFO L85 PathProgramCache]: Analyzing trace with hash 491845860, now seen corresponding path program 19 times [2022-03-03 19:17:43,375 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 19:17:43,375 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254391991] [2022-03-03 19:17:43,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 19:17:43,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 19:17:43,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 19:17:43,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 19:17:43,547 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 19:17:43,547 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254391991] [2022-03-03 19:17:43,547 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254391991] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 19:17:43,547 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 19:17:43,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 19:17:43,548 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022217478] [2022-03-03 19:17:43,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 19:17:43,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-03 19:17:43,548 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 19:17:43,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-03 19:17:43,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-03-03 19:17:43,548 INFO L87 Difference]: Start difference. First operand 204520 states and 745783 transitions. Second operand has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:17:51,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 19:17:51,196 INFO L93 Difference]: Finished difference Result 700447 states and 2583330 transitions. [2022-03-03 19:17:51,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-03 19:17:51,196 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-03-03 19:17:51,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 19:17:58,002 INFO L225 Difference]: With dead ends: 700447 [2022-03-03 19:17:58,002 INFO L226 Difference]: Without dead ends: 699325 [2022-03-03 19:17:58,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=397, Invalid=1009, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 19:17:58,003 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 934 mSDsluCounter, 1073 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 315 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 315 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-03 19:17:58,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [934 Valid, 1260 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [315 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-03 19:18:00,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699325 states. [2022-03-03 19:18:15,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699325 to 241432. [2022-03-03 19:18:15,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241432 states, 241431 states have (on average 3.6588052072848973) internal successors, (883349), 241431 states have internal predecessors, (883349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:18:17,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241432 states to 241432 states and 883349 transitions. [2022-03-03 19:18:17,161 INFO L78 Accepts]: Start accepts. Automaton has 241432 states and 883349 transitions. Word has length 75 [2022-03-03 19:18:17,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 19:18:17,162 INFO L470 AbstractCegarLoop]: Abstraction has 241432 states and 883349 transitions. [2022-03-03 19:18:17,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:18:17,162 INFO L276 IsEmpty]: Start isEmpty. Operand 241432 states and 883349 transitions. [2022-03-03 19:18:18,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-03 19:18:18,518 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 19:18:18,518 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 19:18:18,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-03 19:18:18,518 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 19:18:18,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 19:18:18,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1521381628, now seen corresponding path program 20 times [2022-03-03 19:18:18,519 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 19:18:18,519 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279724073] [2022-03-03 19:18:18,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 19:18:18,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 19:18:18,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 19:18:18,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 19:18:18,709 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 19:18:18,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279724073] [2022-03-03 19:18:18,709 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279724073] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 19:18:18,709 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 19:18:18,709 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-03 19:18:18,709 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924719105] [2022-03-03 19:18:18,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 19:18:18,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-03 19:18:18,710 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 19:18:18,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-03 19:18:18,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-03-03 19:18:18,710 INFO L87 Difference]: Start difference. First operand 241432 states and 883349 transitions. Second operand has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:18:26,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 19:18:26,208 INFO L93 Difference]: Finished difference Result 673118 states and 2483162 transitions. [2022-03-03 19:18:26,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 19:18:26,208 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-03-03 19:18:26,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 19:18:30,705 INFO L225 Difference]: With dead ends: 673118 [2022-03-03 19:18:30,706 INFO L226 Difference]: Without dead ends: 672074 [2022-03-03 19:18:30,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=358, Invalid=902, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 19:18:30,706 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 1067 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 19:18:30,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1067 Valid, 1158 Invalid, 1185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 19:18:32,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672074 states. [2022-03-03 19:18:45,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672074 to 209550. [2022-03-03 19:18:45,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209550 states, 209549 states have (on average 3.6478771075023024) internal successors, (764409), 209549 states have internal predecessors, (764409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:18:47,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209550 states to 209550 states and 764409 transitions. [2022-03-03 19:18:47,575 INFO L78 Accepts]: Start accepts. Automaton has 209550 states and 764409 transitions. Word has length 75 [2022-03-03 19:18:47,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 19:18:47,575 INFO L470 AbstractCegarLoop]: Abstraction has 209550 states and 764409 transitions. [2022-03-03 19:18:47,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:18:47,575 INFO L276 IsEmpty]: Start isEmpty. Operand 209550 states and 764409 transitions. [2022-03-03 19:18:48,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-03 19:18:48,506 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 19:18:48,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 19:18:48,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-03 19:18:48,506 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 19:18:48,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 19:18:48,506 INFO L85 PathProgramCache]: Analyzing trace with hash 424171268, now seen corresponding path program 21 times [2022-03-03 19:18:48,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 19:18:48,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547327980] [2022-03-03 19:18:48,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 19:18:48,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 19:18:48,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 19:18:48,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 19:18:48,556 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 19:18:48,556 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547327980] [2022-03-03 19:18:48,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547327980] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 19:18:48,556 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 19:18:48,556 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 19:18:48,556 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143214469] [2022-03-03 19:18:48,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 19:18:48,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 19:18:48,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 19:18:48,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 19:18:48,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 19:18:48,557 INFO L87 Difference]: Start difference. First operand 209550 states and 764409 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:18:50,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 19:18:50,782 INFO L93 Difference]: Finished difference Result 203748 states and 730736 transitions. [2022-03-03 19:18:50,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 19:18:50,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-03-03 19:18:50,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 19:18:52,352 INFO L225 Difference]: With dead ends: 203748 [2022-03-03 19:18:52,352 INFO L226 Difference]: Without dead ends: 203491 [2022-03-03 19:18:52,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 19:18:52,353 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 37 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 19:18:52,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 169 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 19:18:53,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203491 states. [2022-03-03 19:18:58,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203491 to 201299. [2022-03-03 19:18:59,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201299 states, 201298 states have (on average 3.587541853371618) internal successors, (722165), 201298 states have internal predecessors, (722165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:19:01,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201299 states to 201299 states and 722165 transitions. [2022-03-03 19:19:01,432 INFO L78 Accepts]: Start accepts. Automaton has 201299 states and 722165 transitions. Word has length 75 [2022-03-03 19:19:01,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 19:19:01,433 INFO L470 AbstractCegarLoop]: Abstraction has 201299 states and 722165 transitions. [2022-03-03 19:19:01,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 19:19:01,433 INFO L276 IsEmpty]: Start isEmpty. Operand 201299 states and 722165 transitions.