/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.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-dev-bc79526 [2022-01-18 15:33:38,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 15:33:38,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 15:33:38,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 15:33:38,646 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-Separate.epf [2022-01-18 15:33:38,662 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 15:33:38,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 15:33:38,663 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 15:33:38,663 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 15:33:38,664 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 15:33:38,664 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 15:33:38,665 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 15:33:38,665 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 15:33:38,665 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 15:33:38,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 15:33:38,665 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 15:33:38,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 15:33:38,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 15:33:38,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 15:33:38,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 15:33:38,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 15:33:38,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 15:33:38,667 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 15:33:38,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 15:33:38,667 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 15:33:38,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 15:33:38,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 15:33:38,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 15:33:38,668 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 15:33:38,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 15:33:38,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 15:33:38,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 15:33:38,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 15:33:38,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 15:33:38,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 15:33:38,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 15:33:38,669 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 15:33:38,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 15:33:38,670 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 15:33:38,670 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 15:33:38,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 15:33:38,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 15:33:38,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 15:33:38,924 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-18 15:33:38,925 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-18 15:33:38,926 INFO L432 ainManager$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 [2022-01-18 15:33:38,926 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bakery-4.wvr.bpl' [2022-01-18 15:33:38,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 15:33:38,954 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-18 15:33:38,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 15:33:38,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 15:33:38,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 15:33:38,966 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 18.01 03:33:38" (1/1) ... [2022-01-18 15:33:38,976 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 18.01 03:33:38" (1/1) ... [2022-01-18 15:33:38,981 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-18 15:33:38,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 15:33:38,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 15:33:38,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 15:33:38,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 15:33:38,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:33:38" (1/1) ... [2022-01-18 15:33:38,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:33:38" (1/1) ... [2022-01-18 15:33:38,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:33:38" (1/1) ... [2022-01-18 15:33:38,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:33:38" (1/1) ... [2022-01-18 15:33:39,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:33:38" (1/1) ... [2022-01-18 15:33:39,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:33:38" (1/1) ... [2022-01-18 15:33:39,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:33:38" (1/1) ... [2022-01-18 15:33:39,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 15:33:39,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 15:33:39,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 15:33:39,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 15:33:39,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:33:38" (1/1) ... [2022-01-18 15:33:39,021 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 15:33:39,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 15:33:39,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 15:33:39,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 15:33:39,079 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-01-18 15:33:39,080 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 15:33:39,080 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 15:33:39,080 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-01-18 15:33:39,080 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 15:33:39,080 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 15:33:39,080 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-01-18 15:33:39,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 15:33:39,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 15:33:39,081 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-01-18 15:33:39,082 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 15:33:39,082 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 15:33:39,083 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-01-18 15:33:39,083 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-18 15:33:39,083 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-18 15:33:39,084 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 15:33:39,123 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 15:33:39,128 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 15:33:39,279 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 15:33:39,293 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 15:33:39,293 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 15:33:39,295 INFO L202 PluginConnector]: Adding new model bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 03:33:39 BoogieIcfgContainer [2022-01-18 15:33:39,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 15:33:39,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 15:33:39,297 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 15:33:39,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 15:33:39,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:33:38" (1/2) ... [2022-01-18 15:33:39,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e1fe8d2 and model type bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 03:33:39, skipping insertion in model container [2022-01-18 15:33:39,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 03:33:39" (2/2) ... [2022-01-18 15:33:39,315 INFO L111 eAbstractionObserver]: Analyzing ICFG bakery-4.wvr.bpl [2022-01-18 15:33:39,319 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 15:33:39,319 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 15:33:39,319 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 15:33:39,319 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 15:33:39,402 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-18 15:33:39,436 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 15:33:39,441 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 15:33:39,441 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 15:33:39,451 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 94 places, 81 transitions, 194 flow [2022-01-18 15:33:41,981 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) [2022-01-18 15:33:42,149 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) [2022-01-18 15:33:42,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:33:42,941 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:33:42,941 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] [2022-01-18 15:33:42,942 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:33:42,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:33:42,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1741946, now seen corresponding path program 1 times [2022-01-18 15:33:42,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:33:42,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999468679] [2022-01-18 15:33:42,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:33:42,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:33:43,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:33:43,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:33:43,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:33:43,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999468679] [2022-01-18 15:33:43,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999468679] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:33:43,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:33:43,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 15:33:43,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295862346] [2022-01-18 15:33:43,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:33:43,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 15:33:43,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:33:43,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 15:33:43,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 15:33:43,280 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) [2022-01-18 15:33:44,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:33:44,365 INFO L93 Difference]: Finished difference Result 93964 states and 349229 transitions. [2022-01-18 15:33:44,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 15:33:44,368 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 [2022-01-18 15:33:44,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:33:45,279 INFO L225 Difference]: With dead ends: 93964 [2022-01-18 15:33:45,280 INFO L226 Difference]: Without dead ends: 93964 [2022-01-18 15:33:45,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 15:33:45,284 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 41 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 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 [2022-01-18 15:33:45,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 169 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 15:33:45,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93964 states. [2022-01-18 15:33:49,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93964 to 93964. [2022-01-18 15:33:49,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93964 states, 93963 states have (on average 3.7166650702936264) internal successors, (349229), 93963 states have internal predecessors, (349229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:33:50,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93964 states to 93964 states and 349229 transitions. [2022-01-18 15:33:50,570 INFO L78 Accepts]: Start accepts. Automaton has 93964 states and 349229 transitions. Word has length 75 [2022-01-18 15:33:50,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:33:50,571 INFO L470 AbstractCegarLoop]: Abstraction has 93964 states and 349229 transitions. [2022-01-18 15:33:50,572 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) [2022-01-18 15:33:50,587 INFO L276 IsEmpty]: Start isEmpty. Operand 93964 states and 349229 transitions. [2022-01-18 15:33:50,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:33:50,924 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:33:50,924 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] [2022-01-18 15:33:50,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 15:33:50,925 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:33:50,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:33:50,926 INFO L85 PathProgramCache]: Analyzing trace with hash 772254598, now seen corresponding path program 2 times [2022-01-18 15:33:50,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:33:50,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319458078] [2022-01-18 15:33:50,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:33:50,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:33:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:33:51,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:33:51,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:33:51,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319458078] [2022-01-18 15:33:51,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319458078] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:33:51,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:33:51,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 15:33:51,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049750501] [2022-01-18 15:33:51,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:33:51,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 15:33:51,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:33:51,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 15:33:51,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 15:33:51,005 INFO L87 Difference]: Start difference. First operand 93964 states and 349229 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) [2022-01-18 15:33:52,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:33:52,086 INFO L93 Difference]: Finished difference Result 93964 states and 344549 transitions. [2022-01-18 15:33:52,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 15:33:52,086 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 [2022-01-18 15:33:52,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:33:52,581 INFO L225 Difference]: With dead ends: 93964 [2022-01-18 15:33:52,581 INFO L226 Difference]: Without dead ends: 93964 [2022-01-18 15:33:52,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 15:33:52,591 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 [2022-01-18 15:33:52,592 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] [2022-01-18 15:33:52,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93964 states. [2022-01-18 15:33:55,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93964 to 93964. [2022-01-18 15:33:55,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93964 states, 93963 states have (on average 3.666858231431521) internal successors, (344549), 93963 states have internal predecessors, (344549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:33:55,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93964 states to 93964 states and 344549 transitions. [2022-01-18 15:33:55,556 INFO L78 Accepts]: Start accepts. Automaton has 93964 states and 344549 transitions. Word has length 75 [2022-01-18 15:33:55,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:33:55,556 INFO L470 AbstractCegarLoop]: Abstraction has 93964 states and 344549 transitions. [2022-01-18 15:33:55,556 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) [2022-01-18 15:33:55,557 INFO L276 IsEmpty]: Start isEmpty. Operand 93964 states and 344549 transitions. [2022-01-18 15:33:56,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:33:56,368 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:33:56,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 15:33:56,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 15:33:56,369 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:33:56,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:33:56,372 INFO L85 PathProgramCache]: Analyzing trace with hash -2023226490, now seen corresponding path program 3 times [2022-01-18 15:33:56,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:33:56,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902559765] [2022-01-18 15:33:56,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:33:56,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:33:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:33:56,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:33:56,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:33:56,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902559765] [2022-01-18 15:33:56,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902559765] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:33:56,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:33:56,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 15:33:56,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537444607] [2022-01-18 15:33:56,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:33:56,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 15:33:56,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:33:56,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 15:33:56,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-18 15:33:56,770 INFO L87 Difference]: Start difference. First operand 93964 states and 344549 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) [2022-01-18 15:33:59,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:33:59,322 INFO L93 Difference]: Finished difference Result 262641 states and 976977 transitions. [2022-01-18 15:33:59,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 15:33:59,322 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 [2022-01-18 15:33:59,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:34:01,357 INFO L225 Difference]: With dead ends: 262641 [2022-01-18 15:34:01,358 INFO L226 Difference]: Without dead ends: 262641 [2022-01-18 15:34:01,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2022-01-18 15:34:01,359 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 759 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 15:34:01,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [759 Valid, 680 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 15:34:01,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262641 states. [2022-01-18 15:34:06,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262641 to 118831. [2022-01-18 15:34:07,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118831 states, 118830 states have (on average 3.6672641588824373) internal successors, (435781), 118830 states have internal predecessors, (435781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:34:08,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118831 states to 118831 states and 435781 transitions. [2022-01-18 15:34:08,421 INFO L78 Accepts]: Start accepts. Automaton has 118831 states and 435781 transitions. Word has length 75 [2022-01-18 15:34:08,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:34:08,422 INFO L470 AbstractCegarLoop]: Abstraction has 118831 states and 435781 transitions. [2022-01-18 15:34:08,422 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) [2022-01-18 15:34:08,423 INFO L276 IsEmpty]: Start isEmpty. Operand 118831 states and 435781 transitions. [2022-01-18 15:34:08,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:34:08,827 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:34:08,827 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] [2022-01-18 15:34:08,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 15:34:08,827 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:34:08,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:34:08,828 INFO L85 PathProgramCache]: Analyzing trace with hash 517777098, now seen corresponding path program 4 times [2022-01-18 15:34:08,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:34:08,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831992126] [2022-01-18 15:34:08,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:34:08,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:34:08,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:34:09,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:34:09,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:34:09,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831992126] [2022-01-18 15:34:09,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831992126] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:34:09,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:34:09,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 15:34:09,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768153023] [2022-01-18 15:34:09,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:34:09,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 15:34:09,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:34:09,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 15:34:09,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-01-18 15:34:09,014 INFO L87 Difference]: Start difference. First operand 118831 states and 435781 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) [2022-01-18 15:34:12,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:34:12,445 INFO L93 Difference]: Finished difference Result 286851 states and 1061896 transitions. [2022-01-18 15:34:12,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 15:34:12,446 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 [2022-01-18 15:34:12,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:34:13,919 INFO L225 Difference]: With dead ends: 286851 [2022-01-18 15:34:13,919 INFO L226 Difference]: Without dead ends: 286851 [2022-01-18 15:34:13,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=150, Invalid=270, Unknown=0, NotChecked=0, Total=420 [2022-01-18 15:34:13,920 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 530 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 15:34:13,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [530 Valid, 586 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 15:34:14,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286851 states. [2022-01-18 15:34:19,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286851 to 144827. [2022-01-18 15:34:20,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144827 states, 144826 states have (on average 3.6672627843066854) internal successors, (531115), 144826 states have internal predecessors, (531115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:34:21,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144827 states to 144827 states and 531115 transitions. [2022-01-18 15:34:21,154 INFO L78 Accepts]: Start accepts. Automaton has 144827 states and 531115 transitions. Word has length 75 [2022-01-18 15:34:21,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:34:21,154 INFO L470 AbstractCegarLoop]: Abstraction has 144827 states and 531115 transitions. [2022-01-18 15:34:21,155 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) [2022-01-18 15:34:21,155 INFO L276 IsEmpty]: Start isEmpty. Operand 144827 states and 531115 transitions. [2022-01-18 15:34:21,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:34:21,499 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:34:21,499 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 15:34:21,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 15:34:21,500 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:34:21,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:34:21,500 INFO L85 PathProgramCache]: Analyzing trace with hash 440272690, now seen corresponding path program 5 times [2022-01-18 15:34:21,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:34:21,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176690033] [2022-01-18 15:34:21,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:34:21,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:34:21,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:34:21,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:34:21,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:34:21,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176690033] [2022-01-18 15:34:21,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176690033] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:34:21,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:34:21,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 15:34:21,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556801493] [2022-01-18 15:34:21,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:34:21,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 15:34:21,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:34:21,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 15:34:21,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-01-18 15:34:21,649 INFO L87 Difference]: Start difference. First operand 144827 states and 531115 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) [2022-01-18 15:34:23,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:34:23,596 INFO L93 Difference]: Finished difference Result 180637 states and 650377 transitions. [2022-01-18 15:34:23,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 15:34:23,596 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 [2022-01-18 15:34:23,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:34:24,990 INFO L225 Difference]: With dead ends: 180637 [2022-01-18 15:34:24,990 INFO L226 Difference]: Without dead ends: 178902 [2022-01-18 15:34:24,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2022-01-18 15:34:24,991 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 [2022-01-18 15:34:24,991 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] [2022-01-18 15:34:25,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178902 states. [2022-01-18 15:34:28,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178902 to 148332. [2022-01-18 15:34:28,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148332 states, 148331 states have (on average 3.6590665471142243) internal successors, (542753), 148331 states have internal predecessors, (542753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:34:30,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148332 states to 148332 states and 542753 transitions. [2022-01-18 15:34:30,162 INFO L78 Accepts]: Start accepts. Automaton has 148332 states and 542753 transitions. Word has length 75 [2022-01-18 15:34:30,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:34:30,162 INFO L470 AbstractCegarLoop]: Abstraction has 148332 states and 542753 transitions. [2022-01-18 15:34:30,162 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) [2022-01-18 15:34:30,162 INFO L276 IsEmpty]: Start isEmpty. Operand 148332 states and 542753 transitions. [2022-01-18 15:34:30,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:34:30,537 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:34:30,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 15:34:30,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 15:34:30,537 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:34:30,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:34:30,538 INFO L85 PathProgramCache]: Analyzing trace with hash -87503410, now seen corresponding path program 6 times [2022-01-18 15:34:30,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:34:30,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129081359] [2022-01-18 15:34:30,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:34:30,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:34:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:34:30,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:34:30,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:34:30,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129081359] [2022-01-18 15:34:30,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129081359] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:34:30,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:34:30,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 15:34:30,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903744006] [2022-01-18 15:34:30,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:34:30,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 15:34:30,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:34:30,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 15:34:30,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-01-18 15:34:30,813 INFO L87 Difference]: Start difference. First operand 148332 states and 542753 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) [2022-01-18 15:34:33,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:34:33,010 INFO L93 Difference]: Finished difference Result 205492 states and 753582 transitions. [2022-01-18 15:34:33,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 15:34:33,010 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 [2022-01-18 15:34:33,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:34:34,624 INFO L225 Difference]: With dead ends: 205492 [2022-01-18 15:34:34,624 INFO L226 Difference]: Without dead ends: 205310 [2022-01-18 15:34:34,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-01-18 15:34:34,625 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 410 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 15:34:34,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 703 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 15:34:34,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205310 states. [2022-01-18 15:34:39,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205310 to 167100. [2022-01-18 15:34:39,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167100 states, 167099 states have (on average 3.6677717999509274) internal successors, (612881), 167099 states have internal predecessors, (612881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:34:40,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167100 states to 167100 states and 612881 transitions. [2022-01-18 15:34:40,233 INFO L78 Accepts]: Start accepts. Automaton has 167100 states and 612881 transitions. Word has length 75 [2022-01-18 15:34:40,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:34:40,233 INFO L470 AbstractCegarLoop]: Abstraction has 167100 states and 612881 transitions. [2022-01-18 15:34:40,233 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) [2022-01-18 15:34:40,233 INFO L276 IsEmpty]: Start isEmpty. Operand 167100 states and 612881 transitions. [2022-01-18 15:34:41,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:34:41,561 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:34:41,561 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] [2022-01-18 15:34:41,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 15:34:41,561 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:34:41,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:34:41,562 INFO L85 PathProgramCache]: Analyzing trace with hash 812973998, now seen corresponding path program 7 times [2022-01-18 15:34:41,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:34:41,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720626997] [2022-01-18 15:34:41,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:34:41,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:34:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:34:41,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:34:41,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:34:41,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720626997] [2022-01-18 15:34:41,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720626997] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:34:41,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:34:41,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 15:34:41,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125165959] [2022-01-18 15:34:41,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:34:41,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 15:34:41,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:34:41,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 15:34:41,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-01-18 15:34:41,706 INFO L87 Difference]: Start difference. First operand 167100 states and 612881 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) [2022-01-18 15:34:47,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:34:47,508 INFO L93 Difference]: Finished difference Result 570440 states and 2121061 transitions. [2022-01-18 15:34:47,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 15:34:47,509 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 [2022-01-18 15:34:47,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:34:54,351 INFO L225 Difference]: With dead ends: 570440 [2022-01-18 15:34:54,352 INFO L226 Difference]: Without dead ends: 569725 [2022-01-18 15:34:54,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2022-01-18 15:34:54,354 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 797 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 15:34:54,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [797 Valid, 803 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 15:34:56,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569725 states. [2022-01-18 15:35:04,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569725 to 171699. [2022-01-18 15:35:04,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171699 states, 171698 states have (on average 3.665948351174737) internal successors, (629436), 171698 states have internal predecessors, (629436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:35:06,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171699 states to 171699 states and 629436 transitions. [2022-01-18 15:35:06,294 INFO L78 Accepts]: Start accepts. Automaton has 171699 states and 629436 transitions. Word has length 75 [2022-01-18 15:35:06,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:35:06,295 INFO L470 AbstractCegarLoop]: Abstraction has 171699 states and 629436 transitions. [2022-01-18 15:35:06,295 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) [2022-01-18 15:35:06,295 INFO L276 IsEmpty]: Start isEmpty. Operand 171699 states and 629436 transitions. [2022-01-18 15:35:06,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:35:06,742 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:35:06,742 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] [2022-01-18 15:35:06,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 15:35:06,742 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:35:06,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:35:06,743 INFO L85 PathProgramCache]: Analyzing trace with hash 861564656, now seen corresponding path program 8 times [2022-01-18 15:35:06,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:35:06,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295595606] [2022-01-18 15:35:06,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:35:06,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:35:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:35:06,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:35:06,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:35:06,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295595606] [2022-01-18 15:35:06,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295595606] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:35:06,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:35:06,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 15:35:06,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584998220] [2022-01-18 15:35:06,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:35:06,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 15:35:06,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:35:06,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 15:35:06,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-01-18 15:35:06,881 INFO L87 Difference]: Start difference. First operand 171699 states and 629436 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) [2022-01-18 15:35:09,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:35:09,705 INFO L93 Difference]: Finished difference Result 254460 states and 933363 transitions. [2022-01-18 15:35:09,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 15:35:09,705 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 [2022-01-18 15:35:09,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:35:10,937 INFO L225 Difference]: With dead ends: 254460 [2022-01-18 15:35:10,938 INFO L226 Difference]: Without dead ends: 252975 [2022-01-18 15:35:10,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-01-18 15:35:10,939 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 429 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 15:35:10,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 378 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 15:35:11,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252975 states. [2022-01-18 15:35:16,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252975 to 171137. [2022-01-18 15:35:16,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171137 states, 171136 states have (on average 3.665984947643979) internal successors, (627382), 171136 states have internal predecessors, (627382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:35:17,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171137 states to 171137 states and 627382 transitions. [2022-01-18 15:35:17,812 INFO L78 Accepts]: Start accepts. Automaton has 171137 states and 627382 transitions. Word has length 75 [2022-01-18 15:35:17,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:35:17,813 INFO L470 AbstractCegarLoop]: Abstraction has 171137 states and 627382 transitions. [2022-01-18 15:35:17,813 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) [2022-01-18 15:35:17,813 INFO L276 IsEmpty]: Start isEmpty. Operand 171137 states and 627382 transitions. [2022-01-18 15:35:18,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:35:18,266 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:35:18,266 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] [2022-01-18 15:35:18,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 15:35:18,266 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:35:18,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:35:18,267 INFO L85 PathProgramCache]: Analyzing trace with hash -124398130, now seen corresponding path program 9 times [2022-01-18 15:35:18,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:35:18,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085804724] [2022-01-18 15:35:18,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:35:18,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:35:18,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:35:18,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:35:18,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:35:18,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085804724] [2022-01-18 15:35:18,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085804724] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:35:18,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:35:18,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 15:35:18,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029068507] [2022-01-18 15:35:18,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:35:18,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 15:35:18,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:35:18,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 15:35:18,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-01-18 15:35:18,505 INFO L87 Difference]: Start difference. First operand 171137 states and 627382 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) [2022-01-18 15:35:23,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:35:23,342 INFO L93 Difference]: Finished difference Result 436323 states and 1618763 transitions. [2022-01-18 15:35:23,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 15:35:23,343 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 [2022-01-18 15:35:23,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:35:25,713 INFO L225 Difference]: With dead ends: 436323 [2022-01-18 15:35:25,713 INFO L226 Difference]: Without dead ends: 436057 [2022-01-18 15:35:25,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=218, Unknown=0, NotChecked=0, Total=342 [2022-01-18 15:35:25,714 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 654 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 15:35:25,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [654 Valid, 540 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 15:35:27,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436057 states. [2022-01-18 15:35:33,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436057 to 152369. [2022-01-18 15:35:33,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152369 states, 152368 states have (on average 3.6566930064055443) internal successors, (557163), 152368 states have internal predecessors, (557163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:35:35,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152369 states to 152369 states and 557163 transitions. [2022-01-18 15:35:35,192 INFO L78 Accepts]: Start accepts. Automaton has 152369 states and 557163 transitions. Word has length 75 [2022-01-18 15:35:35,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:35:35,193 INFO L470 AbstractCegarLoop]: Abstraction has 152369 states and 557163 transitions. [2022-01-18 15:35:35,193 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) [2022-01-18 15:35:35,193 INFO L276 IsEmpty]: Start isEmpty. Operand 152369 states and 557163 transitions. [2022-01-18 15:35:35,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:35:35,593 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:35:35,594 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] [2022-01-18 15:35:35,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 15:35:35,594 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:35:35,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:35:35,594 INFO L85 PathProgramCache]: Analyzing trace with hash 776079278, now seen corresponding path program 10 times [2022-01-18 15:35:35,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:35:35,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784274183] [2022-01-18 15:35:35,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:35:35,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:35:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:35:35,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:35:35,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:35:35,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784274183] [2022-01-18 15:35:35,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784274183] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:35:35,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:35:35,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 15:35:35,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629525798] [2022-01-18 15:35:35,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:35:35,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 15:35:35,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:35:35,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 15:35:35,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-01-18 15:35:35,721 INFO L87 Difference]: Start difference. First operand 152369 states and 557163 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) [2022-01-18 15:35:39,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:35:39,402 INFO L93 Difference]: Finished difference Result 381168 states and 1403447 transitions. [2022-01-18 15:35:39,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 15:35:39,402 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 [2022-01-18 15:35:39,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:35:41,993 INFO L225 Difference]: With dead ends: 381168 [2022-01-18 15:35:41,994 INFO L226 Difference]: Without dead ends: 381168 [2022-01-18 15:35:41,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=306, Unknown=0, NotChecked=0, Total=462 [2022-01-18 15:35:41,994 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 735 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 15:35:41,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [735 Valid, 616 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 15:35:42,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381168 states. [2022-01-18 15:35:48,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381168 to 177869. [2022-01-18 15:35:49,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177869 states, 177868 states have (on average 3.664993140980952) internal successors, (651885), 177868 states have internal predecessors, (651885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:35:50,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177869 states to 177869 states and 651885 transitions. [2022-01-18 15:35:50,938 INFO L78 Accepts]: Start accepts. Automaton has 177869 states and 651885 transitions. Word has length 75 [2022-01-18 15:35:50,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:35:50,938 INFO L470 AbstractCegarLoop]: Abstraction has 177869 states and 651885 transitions. [2022-01-18 15:35:50,938 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) [2022-01-18 15:35:50,941 INFO L276 IsEmpty]: Start isEmpty. Operand 177869 states and 651885 transitions. [2022-01-18 15:35:51,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:35:51,627 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:35:51,628 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] [2022-01-18 15:35:51,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 15:35:51,628 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:35:51,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:35:51,628 INFO L85 PathProgramCache]: Analyzing trace with hash 170424594, now seen corresponding path program 11 times [2022-01-18 15:35:51,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:35:51,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365285736] [2022-01-18 15:35:51,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:35:51,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:35:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:35:51,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:35:51,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:35:51,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365285736] [2022-01-18 15:35:51,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365285736] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:35:51,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:35:51,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 15:35:51,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735652108] [2022-01-18 15:35:51,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:35:51,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 15:35:51,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:35:51,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 15:35:51,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-01-18 15:35:51,798 INFO L87 Difference]: Start difference. First operand 177869 states and 651885 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) [2022-01-18 15:35:54,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:35:54,482 INFO L93 Difference]: Finished difference Result 212927 states and 768581 transitions. [2022-01-18 15:35:54,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 15:35:54,483 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 [2022-01-18 15:35:54,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:35:56,528 INFO L225 Difference]: With dead ends: 212927 [2022-01-18 15:35:56,528 INFO L226 Difference]: Without dead ends: 211402 [2022-01-18 15:35:56,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2022-01-18 15:35:56,530 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 490 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 15:35:56,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [490 Valid, 2061 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 15:35:56,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211402 states. [2022-01-18 15:36:01,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211402 to 177438. [2022-01-18 15:36:02,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177438 states, 177437 states have (on average 3.6636045469659653) internal successors, (650059), 177437 states have internal predecessors, (650059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:36:02,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177438 states to 177438 states and 650059 transitions. [2022-01-18 15:36:02,968 INFO L78 Accepts]: Start accepts. Automaton has 177438 states and 650059 transitions. Word has length 75 [2022-01-18 15:36:02,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:36:02,968 INFO L470 AbstractCegarLoop]: Abstraction has 177438 states and 650059 transitions. [2022-01-18 15:36:02,968 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) [2022-01-18 15:36:02,969 INFO L276 IsEmpty]: Start isEmpty. Operand 177438 states and 650059 transitions. [2022-01-18 15:36:04,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:36:04,208 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:36:04,208 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] [2022-01-18 15:36:04,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 15:36:04,213 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:36:04,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:36:04,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1573335122, now seen corresponding path program 12 times [2022-01-18 15:36:04,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:36:04,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373538624] [2022-01-18 15:36:04,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:36:04,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:36:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:36:04,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:36:04,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:36:04,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373538624] [2022-01-18 15:36:04,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373538624] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:36:04,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:36:04,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 15:36:04,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602088083] [2022-01-18 15:36:04,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:36:04,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 15:36:04,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:36:04,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 15:36:04,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 15:36:04,290 INFO L87 Difference]: Start difference. First operand 177438 states and 650059 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) [2022-01-18 15:36:05,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:36:05,186 INFO L93 Difference]: Finished difference Result 167062 states and 602986 transitions. [2022-01-18 15:36:05,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 15:36:05,186 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 [2022-01-18 15:36:05,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:36:06,467 INFO L225 Difference]: With dead ends: 167062 [2022-01-18 15:36:06,467 INFO L226 Difference]: Without dead ends: 166910 [2022-01-18 15:36:06,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 15:36:06,467 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 40 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 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 [2022-01-18 15:36:06,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 169 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 15:36:06,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166910 states. [2022-01-18 15:36:10,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166910 to 166874. [2022-01-18 15:36:10,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166874 states, 166873 states have (on average 3.609906935214205) internal successors, (602396), 166873 states have internal predecessors, (602396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:36:11,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166874 states to 166874 states and 602396 transitions. [2022-01-18 15:36:11,588 INFO L78 Accepts]: Start accepts. Automaton has 166874 states and 602396 transitions. Word has length 75 [2022-01-18 15:36:11,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:36:11,589 INFO L470 AbstractCegarLoop]: Abstraction has 166874 states and 602396 transitions. [2022-01-18 15:36:11,589 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) [2022-01-18 15:36:11,589 INFO L276 IsEmpty]: Start isEmpty. Operand 166874 states and 602396 transitions. [2022-01-18 15:36:12,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:36:12,003 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:36:12,003 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] [2022-01-18 15:36:12,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 15:36:12,003 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:36:12,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:36:12,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1722687696, now seen corresponding path program 13 times [2022-01-18 15:36:12,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:36:12,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651532403] [2022-01-18 15:36:12,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:36:12,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:36:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:36:12,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:36:12,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:36:12,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651532403] [2022-01-18 15:36:12,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651532403] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:36:12,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:36:12,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 15:36:12,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625067105] [2022-01-18 15:36:12,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:36:12,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 15:36:12,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:36:12,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 15:36:12,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-18 15:36:12,103 INFO L87 Difference]: Start difference. First operand 166874 states and 602396 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) [2022-01-18 15:36:16,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:36:16,140 INFO L93 Difference]: Finished difference Result 420984 states and 1533690 transitions. [2022-01-18 15:36:16,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 15:36:16,141 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 [2022-01-18 15:36:16,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:36:19,048 INFO L225 Difference]: With dead ends: 420984 [2022-01-18 15:36:19,048 INFO L226 Difference]: Without dead ends: 419336 [2022-01-18 15:36:19,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=189, Invalid=363, Unknown=0, NotChecked=0, Total=552 [2022-01-18 15:36:19,049 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 731 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 15:36:19,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [731 Valid, 736 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 15:36:20,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419336 states. [2022-01-18 15:36:26,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419336 to 183874. [2022-01-18 15:36:26,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183874 states, 183873 states have (on average 3.6044280563214826) internal successors, (662757), 183873 states have internal predecessors, (662757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:36:28,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183874 states to 183874 states and 662757 transitions. [2022-01-18 15:36:28,334 INFO L78 Accepts]: Start accepts. Automaton has 183874 states and 662757 transitions. Word has length 75 [2022-01-18 15:36:28,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:36:28,335 INFO L470 AbstractCegarLoop]: Abstraction has 183874 states and 662757 transitions. [2022-01-18 15:36:28,335 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) [2022-01-18 15:36:28,335 INFO L276 IsEmpty]: Start isEmpty. Operand 183874 states and 662757 transitions. [2022-01-18 15:36:28,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:36:28,848 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:36:28,848 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] [2022-01-18 15:36:28,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 15:36:28,848 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:36:28,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:36:28,849 INFO L85 PathProgramCache]: Analyzing trace with hash 453153538, now seen corresponding path program 14 times [2022-01-18 15:36:28,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:36:28,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021402017] [2022-01-18 15:36:28,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:36:28,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:36:28,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:36:29,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:36:29,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:36:29,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021402017] [2022-01-18 15:36:29,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021402017] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:36:29,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:36:29,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 15:36:29,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139803258] [2022-01-18 15:36:29,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:36:29,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 15:36:29,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:36:29,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 15:36:29,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-01-18 15:36:29,099 INFO L87 Difference]: Start difference. First operand 183874 states and 662757 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) [2022-01-18 15:36:32,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:36:32,615 INFO L93 Difference]: Finished difference Result 273303 states and 981280 transitions. [2022-01-18 15:36:32,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 15:36:32,615 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 [2022-01-18 15:36:32,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:36:35,078 INFO L225 Difference]: With dead ends: 273303 [2022-01-18 15:36:35,079 INFO L226 Difference]: Without dead ends: 272472 [2022-01-18 15:36:35,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-01-18 15:36:35,079 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 412 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-18 15:36:35,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 1329 Invalid, 1238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-18 15:36:35,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272472 states. [2022-01-18 15:36:41,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272472 to 186052. [2022-01-18 15:36:41,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186052 states, 186051 states have (on average 3.602410091856534) internal successors, (670232), 186051 states have internal predecessors, (670232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:36:42,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186052 states to 186052 states and 670232 transitions. [2022-01-18 15:36:42,970 INFO L78 Accepts]: Start accepts. Automaton has 186052 states and 670232 transitions. Word has length 75 [2022-01-18 15:36:42,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:36:42,971 INFO L470 AbstractCegarLoop]: Abstraction has 186052 states and 670232 transitions. [2022-01-18 15:36:42,971 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) [2022-01-18 15:36:42,971 INFO L276 IsEmpty]: Start isEmpty. Operand 186052 states and 670232 transitions. [2022-01-18 15:36:43,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:36:43,436 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:36:43,436 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] [2022-01-18 15:36:43,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 15:36:43,436 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:36:43,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:36:43,436 INFO L85 PathProgramCache]: Analyzing trace with hash -178632800, now seen corresponding path program 15 times [2022-01-18 15:36:43,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:36:43,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766197222] [2022-01-18 15:36:43,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:36:43,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:36:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:36:43,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:36:43,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:36:43,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766197222] [2022-01-18 15:36:43,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766197222] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:36:43,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:36:43,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 15:36:43,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529699360] [2022-01-18 15:36:43,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:36:43,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 15:36:43,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:36:43,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 15:36:43,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-01-18 15:36:43,715 INFO L87 Difference]: Start difference. First operand 186052 states and 670232 transitions. Second operand has 15 states, 15 states have (on average 5.0) internal successors, (75), 14 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) [2022-01-18 15:36:46,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:36:46,962 INFO L93 Difference]: Finished difference Result 283660 states and 1018903 transitions. [2022-01-18 15:36:46,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 15:36:46,963 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.0) internal successors, (75), 14 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 [2022-01-18 15:36:46,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:36:48,274 INFO L225 Difference]: With dead ends: 283660 [2022-01-18 15:36:48,274 INFO L226 Difference]: Without dead ends: 282804 [2022-01-18 15:36:48,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2022-01-18 15:36:48,275 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 469 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 15:36:48,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 1438 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 15:36:49,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282804 states. [2022-01-18 15:36:53,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282804 to 186012. [2022-01-18 15:36:54,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186012 states, 186011 states have (on average 3.602265457419185) internal successors, (670061), 186011 states have internal predecessors, (670061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:36:55,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186012 states to 186012 states and 670061 transitions. [2022-01-18 15:36:55,488 INFO L78 Accepts]: Start accepts. Automaton has 186012 states and 670061 transitions. Word has length 75 [2022-01-18 15:36:55,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:36:55,488 INFO L470 AbstractCegarLoop]: Abstraction has 186012 states and 670061 transitions. [2022-01-18 15:36:55,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.0) internal successors, (75), 14 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) [2022-01-18 15:36:55,488 INFO L276 IsEmpty]: Start isEmpty. Operand 186012 states and 670061 transitions. [2022-01-18 15:36:56,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:36:56,760 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:36:56,760 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 15:36:56,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 15:36:56,761 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:36:56,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:36:56,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1857976806, now seen corresponding path program 16 times [2022-01-18 15:36:56,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:36:56,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541638451] [2022-01-18 15:36:56,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:36:56,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:36:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:36:57,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:36:57,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:36:57,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541638451] [2022-01-18 15:36:57,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541638451] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:36:57,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:36:57,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 15:36:57,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86172680] [2022-01-18 15:36:57,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:36:57,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 15:36:57,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:36:57,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 15:36:57,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-01-18 15:36:57,105 INFO L87 Difference]: Start difference. First operand 186012 states and 670061 transitions. Second operand has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 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) [2022-01-18 15:37:00,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:37:00,061 INFO L93 Difference]: Finished difference Result 231483 states and 828042 transitions. [2022-01-18 15:37:00,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-18 15:37:00,061 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 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 [2022-01-18 15:37:00,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:37:01,032 INFO L225 Difference]: With dead ends: 231483 [2022-01-18 15:37:01,032 INFO L226 Difference]: Without dead ends: 229890 [2022-01-18 15:37:01,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=225, Invalid=767, Unknown=0, NotChecked=0, Total=992 [2022-01-18 15:37:01,033 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 846 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 1077 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 1246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 1077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 15:37:01,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [846 Valid, 1098 Invalid, 1246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 1077 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-18 15:37:02,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229890 states. [2022-01-18 15:37:06,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229890 to 209728. [2022-01-18 15:37:07,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209728 states, 209727 states have (on average 3.590429463063888) internal successors, (753010), 209727 states have internal predecessors, (753010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:37:07,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209728 states to 209728 states and 753010 transitions. [2022-01-18 15:37:07,925 INFO L78 Accepts]: Start accepts. Automaton has 209728 states and 753010 transitions. Word has length 75 [2022-01-18 15:37:07,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:37:07,925 INFO L470 AbstractCegarLoop]: Abstraction has 209728 states and 753010 transitions. [2022-01-18 15:37:07,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 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) [2022-01-18 15:37:07,926 INFO L276 IsEmpty]: Start isEmpty. Operand 209728 states and 753010 transitions. [2022-01-18 15:37:09,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:37:09,252 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:37:09,253 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] [2022-01-18 15:37:09,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 15:37:09,253 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:37:09,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:37:09,253 INFO L85 PathProgramCache]: Analyzing trace with hash 2001758020, now seen corresponding path program 17 times [2022-01-18 15:37:09,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:37:09,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112560998] [2022-01-18 15:37:09,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:37:09,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:37:09,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:37:09,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:37:09,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:37:09,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112560998] [2022-01-18 15:37:09,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112560998] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:37:09,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:37:09,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 15:37:09,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713720261] [2022-01-18 15:37:09,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:37:09,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 15:37:09,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:37:09,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 15:37:09,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-01-18 15:37:09,519 INFO L87 Difference]: Start difference. First operand 209728 states and 753010 transitions. Second operand has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 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) [2022-01-18 15:37:11,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:37:11,632 INFO L93 Difference]: Finished difference Result 212798 states and 762994 transitions. [2022-01-18 15:37:11,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-18 15:37:11,632 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 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 [2022-01-18 15:37:11,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:37:12,553 INFO L225 Difference]: With dead ends: 212798 [2022-01-18 15:37:12,553 INFO L226 Difference]: Without dead ends: 210755 [2022-01-18 15:37:12,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2022-01-18 15:37:12,554 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 267 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 15:37:12,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 635 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 15:37:12,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210755 states. [2022-01-18 15:37:17,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210755 to 210548. [2022-01-18 15:37:17,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210548 states, 210547 states have (on average 3.5891036205692792) internal successors, (755675), 210547 states have internal predecessors, (755675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:37:19,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210548 states to 210548 states and 755675 transitions. [2022-01-18 15:37:19,149 INFO L78 Accepts]: Start accepts. Automaton has 210548 states and 755675 transitions. Word has length 75 [2022-01-18 15:37:19,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:37:19,149 INFO L470 AbstractCegarLoop]: Abstraction has 210548 states and 755675 transitions. [2022-01-18 15:37:19,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 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) [2022-01-18 15:37:19,149 INFO L276 IsEmpty]: Start isEmpty. Operand 210548 states and 755675 transitions. [2022-01-18 15:37:20,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:37:20,430 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:37:20,430 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] [2022-01-18 15:37:20,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 15:37:20,430 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:37:20,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:37:20,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1303900452, now seen corresponding path program 18 times [2022-01-18 15:37:20,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:37:20,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928663902] [2022-01-18 15:37:20,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:37:20,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:37:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:37:20,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:37:20,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:37:20,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928663902] [2022-01-18 15:37:20,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928663902] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:37:20,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:37:20,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 15:37:20,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75806672] [2022-01-18 15:37:20,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:37:20,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 15:37:20,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:37:20,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 15:37:20,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-01-18 15:37:20,928 INFO L87 Difference]: Start difference. First operand 210548 states and 755675 transitions. Second operand has 15 states, 15 states have (on average 5.0) internal successors, (75), 14 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) [2022-01-18 15:37:23,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:37:23,761 INFO L93 Difference]: Finished difference Result 213070 states and 763817 transitions. [2022-01-18 15:37:23,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 15:37:23,762 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.0) internal successors, (75), 14 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 [2022-01-18 15:37:23,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:37:25,431 INFO L225 Difference]: With dead ends: 213070 [2022-01-18 15:37:25,432 INFO L226 Difference]: Without dead ends: 211594 [2022-01-18 15:37:25,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2022-01-18 15:37:25,432 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 320 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 15:37:25,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 839 Invalid, 991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 15:37:25,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211594 states. [2022-01-18 15:37:30,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211594 to 210503. [2022-01-18 15:37:31,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210503 states, 210502 states have (on average 3.5892058032702776) internal successors, (755535), 210502 states have internal predecessors, (755535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:37:32,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210503 states to 210503 states and 755535 transitions. [2022-01-18 15:37:32,966 INFO L78 Accepts]: Start accepts. Automaton has 210503 states and 755535 transitions. Word has length 75 [2022-01-18 15:37:32,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:37:32,966 INFO L470 AbstractCegarLoop]: Abstraction has 210503 states and 755535 transitions. [2022-01-18 15:37:32,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.0) internal successors, (75), 14 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) [2022-01-18 15:37:32,967 INFO L276 IsEmpty]: Start isEmpty. Operand 210503 states and 755535 transitions. [2022-01-18 15:37:33,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:37:33,533 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:37:33,533 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] [2022-01-18 15:37:33,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 15:37:33,533 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:37:33,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:37:33,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1101606842, now seen corresponding path program 19 times [2022-01-18 15:37:33,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:37:33,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875807496] [2022-01-18 15:37:33,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:37:33,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:37:33,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:37:33,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:37:33,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:37:33,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875807496] [2022-01-18 15:37:33,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875807496] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:37:33,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:37:33,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 15:37:33,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759911822] [2022-01-18 15:37:33,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:37:33,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-18 15:37:33,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:37:33,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-18 15:37:33,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-01-18 15:37:33,800 INFO L87 Difference]: Start difference. First operand 210503 states and 755535 transitions. Second operand has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 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) [2022-01-18 15:37:36,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:37:36,798 INFO L93 Difference]: Finished difference Result 214310 states and 768040 transitions. [2022-01-18 15:37:36,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-18 15:37:36,799 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 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 [2022-01-18 15:37:36,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:37:37,829 INFO L225 Difference]: With dead ends: 214310 [2022-01-18 15:37:37,829 INFO L226 Difference]: Without dead ends: 212069 [2022-01-18 15:37:37,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=134, Invalid=418, Unknown=0, NotChecked=0, Total=552 [2022-01-18 15:37:37,830 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 483 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 15:37:37,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [483 Valid, 529 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 15:37:38,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212069 states. [2022-01-18 15:37:42,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212069 to 210071. [2022-01-18 15:37:43,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210071 states, 210070 states have (on average 3.590112819536345) internal successors, (754175), 210070 states have internal predecessors, (754175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:37:44,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210071 states to 210071 states and 754175 transitions. [2022-01-18 15:37:44,801 INFO L78 Accepts]: Start accepts. Automaton has 210071 states and 754175 transitions. Word has length 75 [2022-01-18 15:37:44,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:37:44,801 INFO L470 AbstractCegarLoop]: Abstraction has 210071 states and 754175 transitions. [2022-01-18 15:37:44,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 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) [2022-01-18 15:37:44,801 INFO L276 IsEmpty]: Start isEmpty. Operand 210071 states and 754175 transitions. [2022-01-18 15:37:45,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:37:45,367 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:37:45,367 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] [2022-01-18 15:37:45,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 15:37:45,367 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:37:45,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:37:45,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1694511510, now seen corresponding path program 20 times [2022-01-18 15:37:45,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:37:45,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741730370] [2022-01-18 15:37:45,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:37:45,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:37:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:37:45,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:37:45,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:37:45,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741730370] [2022-01-18 15:37:45,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741730370] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:37:45,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:37:45,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 15:37:45,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574973183] [2022-01-18 15:37:45,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:37:45,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 15:37:45,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:37:45,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 15:37:45,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-01-18 15:37:45,607 INFO L87 Difference]: Start difference. First operand 210071 states and 754175 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) [2022-01-18 15:37:49,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:37:49,426 INFO L93 Difference]: Finished difference Result 331137 states and 1175862 transitions. [2022-01-18 15:37:49,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 15:37:49,426 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 [2022-01-18 15:37:49,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:37:51,694 INFO L225 Difference]: With dead ends: 331137 [2022-01-18 15:37:51,695 INFO L226 Difference]: Without dead ends: 331137 [2022-01-18 15:37:51,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=260, Invalid=796, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 15:37:51,695 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 954 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 1177 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 1600 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 15:37:51,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [954 Valid, 1600 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1177 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 15:37:52,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331137 states. [2022-01-18 15:37:58,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331137 to 249878. [2022-01-18 15:37:59,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249878 states, 249877 states have (on average 3.576687730363339) internal successors, (893732), 249877 states have internal predecessors, (893732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:38:00,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249878 states to 249878 states and 893732 transitions. [2022-01-18 15:38:00,986 INFO L78 Accepts]: Start accepts. Automaton has 249878 states and 893732 transitions. Word has length 75 [2022-01-18 15:38:00,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:38:00,987 INFO L470 AbstractCegarLoop]: Abstraction has 249878 states and 893732 transitions. [2022-01-18 15:38:00,987 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) [2022-01-18 15:38:00,987 INFO L276 IsEmpty]: Start isEmpty. Operand 249878 states and 893732 transitions. [2022-01-18 15:38:02,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:38:02,461 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:38:02,461 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] [2022-01-18 15:38:02,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 15:38:02,461 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:38:02,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:38:02,462 INFO L85 PathProgramCache]: Analyzing trace with hash 619290576, now seen corresponding path program 21 times [2022-01-18 15:38:02,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:38:02,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483062372] [2022-01-18 15:38:02,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:38:02,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:38:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:38:02,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:38:02,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:38:02,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483062372] [2022-01-18 15:38:02,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483062372] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:38:02,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:38:02,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 15:38:02,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319234046] [2022-01-18 15:38:02,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:38:02,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 15:38:02,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:38:02,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 15:38:02,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-01-18 15:38:02,625 INFO L87 Difference]: Start difference. First operand 249878 states and 893732 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) [2022-01-18 15:38:05,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:38:05,054 INFO L93 Difference]: Finished difference Result 298811 states and 1056013 transitions. [2022-01-18 15:38:05,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 15:38:05,054 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 [2022-01-18 15:38:05,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:38:07,094 INFO L225 Difference]: With dead ends: 298811 [2022-01-18 15:38:07,095 INFO L226 Difference]: Without dead ends: 295562 [2022-01-18 15:38:07,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2022-01-18 15:38:07,095 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 490 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 2031 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 15:38:07,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [490 Valid, 2031 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 15:38:07,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295562 states. [2022-01-18 15:38:13,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295562 to 253292. [2022-01-18 15:38:14,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253292 states, 253291 states have (on average 3.570817755072229) internal successors, (904456), 253291 states have internal predecessors, (904456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:38:16,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253292 states to 253292 states and 904456 transitions. [2022-01-18 15:38:16,277 INFO L78 Accepts]: Start accepts. Automaton has 253292 states and 904456 transitions. Word has length 75 [2022-01-18 15:38:16,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:38:16,278 INFO L470 AbstractCegarLoop]: Abstraction has 253292 states and 904456 transitions. [2022-01-18 15:38:16,278 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) [2022-01-18 15:38:16,278 INFO L276 IsEmpty]: Start isEmpty. Operand 253292 states and 904456 transitions. [2022-01-18 15:38:18,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:38:18,028 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:38:18,028 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] [2022-01-18 15:38:18,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 15:38:18,028 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:38:18,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:38:18,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1066439542, now seen corresponding path program 22 times [2022-01-18 15:38:18,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:38:18,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391713676] [2022-01-18 15:38:18,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:38:18,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:38:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:38:18,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:38:18,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:38:18,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391713676] [2022-01-18 15:38:18,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391713676] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:38:18,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:38:18,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 15:38:18,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782984979] [2022-01-18 15:38:18,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:38:18,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 15:38:18,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:38:18,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 15:38:18,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-01-18 15:38:18,350 INFO L87 Difference]: Start difference. First operand 253292 states and 904456 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) [2022-01-18 15:38:22,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:38:22,181 INFO L93 Difference]: Finished difference Result 318272 states and 1121848 transitions. [2022-01-18 15:38:22,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-18 15:38:22,182 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 [2022-01-18 15:38:22,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:38:25,338 INFO L225 Difference]: With dead ends: 318272 [2022-01-18 15:38:25,339 INFO L226 Difference]: Without dead ends: 310588 [2022-01-18 15:38:25,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=250, Invalid=742, Unknown=0, NotChecked=0, Total=992 [2022-01-18 15:38:25,351 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 841 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-18 15:38:25,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [841 Valid, 1388 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-18 15:38:25,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310588 states. [2022-01-18 15:38:32,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310588 to 266094. [2022-01-18 15:38:32,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266094 states, 266093 states have (on average 3.560800171368657) internal successors, (947504), 266093 states have internal predecessors, (947504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:38:34,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266094 states to 266094 states and 947504 transitions. [2022-01-18 15:38:34,659 INFO L78 Accepts]: Start accepts. Automaton has 266094 states and 947504 transitions. Word has length 75 [2022-01-18 15:38:34,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:38:34,659 INFO L470 AbstractCegarLoop]: Abstraction has 266094 states and 947504 transitions. [2022-01-18 15:38:34,659 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) [2022-01-18 15:38:34,659 INFO L276 IsEmpty]: Start isEmpty. Operand 266094 states and 947504 transitions. [2022-01-18 15:38:36,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:38:36,079 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:38:36,079 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] [2022-01-18 15:38:36,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 15:38:36,080 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:38:36,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:38:36,080 INFO L85 PathProgramCache]: Analyzing trace with hash -571101656, now seen corresponding path program 23 times [2022-01-18 15:38:36,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:38:36,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559094675] [2022-01-18 15:38:36,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:38:36,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:38:36,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:38:36,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:38:36,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:38:36,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559094675] [2022-01-18 15:38:36,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559094675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:38:36,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:38:36,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-18 15:38:36,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210418627] [2022-01-18 15:38:36,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:38:36,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 15:38:36,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:38:36,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 15:38:36,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-01-18 15:38:36,507 INFO L87 Difference]: Start difference. First operand 266094 states and 947504 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) [2022-01-18 15:38:39,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:38:39,385 INFO L93 Difference]: Finished difference Result 286281 states and 1011915 transitions. [2022-01-18 15:38:39,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 15:38:39,385 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 [2022-01-18 15:38:39,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:38:41,362 INFO L225 Difference]: With dead ends: 286281 [2022-01-18 15:38:41,362 INFO L226 Difference]: Without dead ends: 285876 [2022-01-18 15:38:41,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=176, Invalid=580, Unknown=0, NotChecked=0, Total=756 [2022-01-18 15:38:41,363 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 476 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 15:38:41,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 1664 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 15:38:41,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285876 states. [2022-01-18 15:38:47,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285876 to 266391. [2022-01-18 15:38:48,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266391 states, 266390 states have (on average 3.5601298847554337) internal successors, (948383), 266390 states have internal predecessors, (948383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:38:50,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266391 states to 266391 states and 948383 transitions. [2022-01-18 15:38:50,172 INFO L78 Accepts]: Start accepts. Automaton has 266391 states and 948383 transitions. Word has length 75 [2022-01-18 15:38:50,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:38:50,172 INFO L470 AbstractCegarLoop]: Abstraction has 266391 states and 948383 transitions. [2022-01-18 15:38:50,172 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) [2022-01-18 15:38:50,172 INFO L276 IsEmpty]: Start isEmpty. Operand 266391 states and 948383 transitions. [2022-01-18 15:38:50,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:38:50,900 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:38:50,900 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] [2022-01-18 15:38:50,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 15:38:50,901 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:38:50,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:38:50,901 INFO L85 PathProgramCache]: Analyzing trace with hash 56970312, now seen corresponding path program 24 times [2022-01-18 15:38:50,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:38:50,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054047395] [2022-01-18 15:38:50,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:38:50,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:38:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:38:51,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:38:51,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:38:51,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054047395] [2022-01-18 15:38:51,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054047395] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:38:51,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:38:51,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 15:38:51,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867817903] [2022-01-18 15:38:51,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:38:51,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 15:38:51,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:38:51,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 15:38:51,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-01-18 15:38:51,315 INFO L87 Difference]: Start difference. First operand 266391 states and 948383 transitions. Second operand has 15 states, 15 states have (on average 5.0) internal successors, (75), 14 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) [2022-01-18 15:38:55,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:38:55,157 INFO L93 Difference]: Finished difference Result 293357 states and 1034384 transitions. [2022-01-18 15:38:55,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 15:38:55,158 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.0) internal successors, (75), 14 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 [2022-01-18 15:38:55,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:38:57,969 INFO L225 Difference]: With dead ends: 293357 [2022-01-18 15:38:57,969 INFO L226 Difference]: Without dead ends: 292637 [2022-01-18 15:38:57,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=224, Invalid=832, Unknown=0, NotChecked=0, Total=1056 [2022-01-18 15:38:57,972 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 695 mSDsluCounter, 2114 mSDsCounter, 0 mSdLazyCounter, 1776 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 2128 SdHoareTripleChecker+Invalid, 1885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 15:38:57,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [695 Valid, 2128 Invalid, 1885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1776 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 15:38:58,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292637 states. [2022-01-18 15:39:05,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292637 to 267346. [2022-01-18 15:39:06,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267346 states, 267345 states have (on average 3.5590005423703452) internal successors, (951481), 267345 states have internal predecessors, (951481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:39:08,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267346 states to 267346 states and 951481 transitions. [2022-01-18 15:39:08,222 INFO L78 Accepts]: Start accepts. Automaton has 267346 states and 951481 transitions. Word has length 75 [2022-01-18 15:39:08,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:39:08,222 INFO L470 AbstractCegarLoop]: Abstraction has 267346 states and 951481 transitions. [2022-01-18 15:39:08,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.0) internal successors, (75), 14 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) [2022-01-18 15:39:08,222 INFO L276 IsEmpty]: Start isEmpty. Operand 267346 states and 951481 transitions. [2022-01-18 15:39:08,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:39:08,939 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:39:08,939 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] [2022-01-18 15:39:08,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 15:39:08,939 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:39:08,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:39:08,940 INFO L85 PathProgramCache]: Analyzing trace with hash 753120200, now seen corresponding path program 25 times [2022-01-18 15:39:08,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:39:08,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985988981] [2022-01-18 15:39:08,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:39:08,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:39:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:39:09,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:39:09,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:39:09,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985988981] [2022-01-18 15:39:09,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985988981] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:39:09,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:39:09,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-18 15:39:09,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897344569] [2022-01-18 15:39:09,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:39:09,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 15:39:09,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:39:09,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 15:39:09,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-01-18 15:39:09,910 INFO L87 Difference]: Start difference. First operand 267346 states and 951481 transitions. Second operand has 15 states, 15 states have (on average 5.0) internal successors, (75), 14 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) [2022-01-18 15:39:17,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:39:17,952 INFO L93 Difference]: Finished difference Result 665830 states and 2364434 transitions. [2022-01-18 15:39:17,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 15:39:17,952 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.0) internal successors, (75), 14 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 [2022-01-18 15:39:17,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:39:22,184 INFO L225 Difference]: With dead ends: 665830 [2022-01-18 15:39:22,185 INFO L226 Difference]: Without dead ends: 662309 [2022-01-18 15:39:22,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 730 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=845, Invalid=2461, Unknown=0, NotChecked=0, Total=3306 [2022-01-18 15:39:22,185 INFO L933 BasicCegarLoop]: 649 mSDtfsCounter, 1047 mSDsluCounter, 4458 mSDsCounter, 0 mSdLazyCounter, 3478 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 4799 SdHoareTripleChecker+Invalid, 3575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 3478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 15:39:22,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1047 Valid, 4799 Invalid, 3575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 3478 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-18 15:39:24,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662309 states. [2022-01-18 15:39:37,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662309 to 380685. [2022-01-18 15:39:38,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380685 states, 380684 states have (on average 3.5653429090794466) internal successors, (1357269), 380684 states have internal predecessors, (1357269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:39:41,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380685 states to 380685 states and 1357269 transitions. [2022-01-18 15:39:41,092 INFO L78 Accepts]: Start accepts. Automaton has 380685 states and 1357269 transitions. Word has length 75 [2022-01-18 15:39:41,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:39:41,092 INFO L470 AbstractCegarLoop]: Abstraction has 380685 states and 1357269 transitions. [2022-01-18 15:39:41,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.0) internal successors, (75), 14 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) [2022-01-18 15:39:41,092 INFO L276 IsEmpty]: Start isEmpty. Operand 380685 states and 1357269 transitions. [2022-01-18 15:39:42,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:39:42,867 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:39:42,867 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 15:39:42,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 15:39:42,867 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:39:42,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:39:42,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1535654792, now seen corresponding path program 26 times [2022-01-18 15:39:42,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:39:42,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847641491] [2022-01-18 15:39:42,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:39:42,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:39:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:39:43,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:39:43,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:39:43,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847641491] [2022-01-18 15:39:43,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847641491] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:39:43,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:39:43,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-18 15:39:43,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450084114] [2022-01-18 15:39:43,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:39:43,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-18 15:39:43,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:39:43,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-18 15:39:43,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-01-18 15:39:43,162 INFO L87 Difference]: Start difference. First operand 380685 states and 1357269 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) [2022-01-18 15:39:51,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:39:51,261 INFO L93 Difference]: Finished difference Result 742666 states and 2646149 transitions. [2022-01-18 15:39:51,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-18 15:39:51,261 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 [2022-01-18 15:39:51,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:40:00,081 INFO L225 Difference]: With dead ends: 742666 [2022-01-18 15:40:00,082 INFO L226 Difference]: Without dead ends: 741824 [2022-01-18 15:40:00,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=287, Invalid=583, Unknown=0, NotChecked=0, Total=870 [2022-01-18 15:40:00,082 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 888 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 888 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 15:40:00,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [888 Valid, 1212 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1014 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 15:40:02,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741824 states. [2022-01-18 15:40:18,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741824 to 473142. [2022-01-18 15:40:19,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473142 states, 473141 states have (on average 3.577161987652729) internal successors, (1692502), 473141 states have internal predecessors, (1692502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:40:23,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473142 states to 473142 states and 1692502 transitions. [2022-01-18 15:40:23,349 INFO L78 Accepts]: Start accepts. Automaton has 473142 states and 1692502 transitions. Word has length 75 [2022-01-18 15:40:23,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:40:23,349 INFO L470 AbstractCegarLoop]: Abstraction has 473142 states and 1692502 transitions. [2022-01-18 15:40:23,349 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) [2022-01-18 15:40:23,349 INFO L276 IsEmpty]: Start isEmpty. Operand 473142 states and 1692502 transitions. [2022-01-18 15:40:25,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:40:25,522 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:40:25,523 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] [2022-01-18 15:40:25,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 15:40:25,523 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:40:25,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:40:25,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1356559308, now seen corresponding path program 27 times [2022-01-18 15:40:25,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:40:25,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046069978] [2022-01-18 15:40:25,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:40:25,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:40:25,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:40:25,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:40:25,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:40:25,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046069978] [2022-01-18 15:40:25,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046069978] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:40:25,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:40:25,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 15:40:25,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30161490] [2022-01-18 15:40:25,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:40:25,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 15:40:25,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:40:25,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 15:40:25,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-01-18 15:40:25,726 INFO L87 Difference]: Start difference. First operand 473142 states and 1692502 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) [2022-01-18 15:40:32,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:40:32,030 INFO L93 Difference]: Finished difference Result 667324 states and 2383653 transitions. [2022-01-18 15:40:32,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 15:40:32,030 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 [2022-01-18 15:40:32,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:40:37,469 INFO L225 Difference]: With dead ends: 667324 [2022-01-18 15:40:37,469 INFO L226 Difference]: Without dead ends: 666284 [2022-01-18 15:40:37,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240 [2022-01-18 15:40:37,470 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 455 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 15:40:37,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [455 Valid, 300 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 15:40:38,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666284 states. [2022-01-18 15:40:54,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666284 to 438799. [2022-01-18 15:40:56,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438799 states, 438798 states have (on average 3.5782478498078842) internal successors, (1570128), 438798 states have internal predecessors, (1570128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:41:01,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438799 states to 438799 states and 1570128 transitions. [2022-01-18 15:41:01,380 INFO L78 Accepts]: Start accepts. Automaton has 438799 states and 1570128 transitions. Word has length 75 [2022-01-18 15:41:01,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:41:01,380 INFO L470 AbstractCegarLoop]: Abstraction has 438799 states and 1570128 transitions. [2022-01-18 15:41:01,380 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) [2022-01-18 15:41:01,380 INFO L276 IsEmpty]: Start isEmpty. Operand 438799 states and 1570128 transitions. [2022-01-18 15:41:04,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:41:04,308 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:41:04,308 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] [2022-01-18 15:41:04,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 15:41:04,309 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:41:04,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:41:04,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1080334832, now seen corresponding path program 28 times [2022-01-18 15:41:04,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:41:04,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449387013] [2022-01-18 15:41:04,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:41:04,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:41:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:41:04,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:41:04,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:41:04,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449387013] [2022-01-18 15:41:04,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449387013] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:41:04,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:41:04,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 15:41:04,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468464274] [2022-01-18 15:41:04,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:41:04,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 15:41:04,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:41:04,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 15:41:04,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-01-18 15:41:04,419 INFO L87 Difference]: Start difference. First operand 438799 states and 1570128 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) [2022-01-18 15:41:08,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:41:08,908 INFO L93 Difference]: Finished difference Result 494377 states and 1754977 transitions. [2022-01-18 15:41:08,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 15:41:08,908 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 [2022-01-18 15:41:08,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:41:12,195 INFO L225 Difference]: With dead ends: 494377 [2022-01-18 15:41:12,196 INFO L226 Difference]: Without dead ends: 490853 [2022-01-18 15:41:12,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2022-01-18 15:41:12,196 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 484 mSDsluCounter, 1986 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 2036 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 15:41:12,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [484 Valid, 2036 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 15:41:14,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490853 states. [2022-01-18 15:41:26,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490853 to 432823. [2022-01-18 15:41:27,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432823 states, 432822 states have (on average 3.5754767548784487) internal successors, (1547545), 432822 states have internal predecessors, (1547545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:41:32,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432823 states to 432823 states and 1547545 transitions. [2022-01-18 15:41:32,666 INFO L78 Accepts]: Start accepts. Automaton has 432823 states and 1547545 transitions. Word has length 75 [2022-01-18 15:41:32,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:41:32,666 INFO L470 AbstractCegarLoop]: Abstraction has 432823 states and 1547545 transitions. [2022-01-18 15:41:32,666 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) [2022-01-18 15:41:32,666 INFO L276 IsEmpty]: Start isEmpty. Operand 432823 states and 1547545 transitions. [2022-01-18 15:41:35,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:41:35,162 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:41:35,163 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 15:41:35,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 15:41:35,164 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:41:35,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:41:35,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1601653734, now seen corresponding path program 29 times [2022-01-18 15:41:35,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:41:35,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853365893] [2022-01-18 15:41:35,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:41:35,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:41:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:41:35,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:41:35,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:41:35,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853365893] [2022-01-18 15:41:35,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853365893] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:41:35,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:41:35,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 15:41:35,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544562845] [2022-01-18 15:41:35,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:41:35,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 15:41:35,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:41:35,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 15:41:35,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-18 15:41:35,262 INFO L87 Difference]: Start difference. First operand 432823 states and 1547545 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) [2022-01-18 15:41:41,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:41:41,557 INFO L93 Difference]: Finished difference Result 539043 states and 1910671 transitions. [2022-01-18 15:41:41,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 15:41:41,557 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 [2022-01-18 15:41:41,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:41:45,126 INFO L225 Difference]: With dead ends: 539043 [2022-01-18 15:41:45,127 INFO L226 Difference]: Without dead ends: 530875 [2022-01-18 15:41:45,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-18 15:41:45,127 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 235 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 15:41:45,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 248 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 15:41:45,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530875 states. [2022-01-18 15:41:57,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530875 to 427477. [2022-01-18 15:41:59,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427477 states, 427476 states have (on average 3.568366411213729) internal successors, (1525391), 427476 states have internal predecessors, (1525391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:42:03,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427477 states to 427477 states and 1525391 transitions. [2022-01-18 15:42:03,228 INFO L78 Accepts]: Start accepts. Automaton has 427477 states and 1525391 transitions. Word has length 75 [2022-01-18 15:42:03,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:42:03,228 INFO L470 AbstractCegarLoop]: Abstraction has 427477 states and 1525391 transitions. [2022-01-18 15:42:03,228 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) [2022-01-18 15:42:03,228 INFO L276 IsEmpty]: Start isEmpty. Operand 427477 states and 1525391 transitions. [2022-01-18 15:42:06,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-18 15:42:06,078 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:42:06,078 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] [2022-01-18 15:42:06,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 15:42:06,078 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 15:42:06,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:42:06,078 INFO L85 PathProgramCache]: Analyzing trace with hash -59890640, now seen corresponding path program 30 times [2022-01-18 15:42:06,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:42:06,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347063640] [2022-01-18 15:42:06,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:42:06,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:42:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:42:06,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:42:06,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:42:06,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347063640] [2022-01-18 15:42:06,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347063640] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:42:06,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:42:06,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 15:42:06,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870199884] [2022-01-18 15:42:06,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:42:06,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 15:42:06,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:42:06,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 15:42:06,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-01-18 15:42:06,187 INFO L87 Difference]: Start difference. First operand 427477 states and 1525391 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) [2022-01-18 15:42:12,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:42:12,424 INFO L93 Difference]: Finished difference Result 488093 states and 1727993 transitions. [2022-01-18 15:42:12,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 15:42:12,425 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 [2022-01-18 15:42:12,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:42:17,388 INFO L225 Difference]: With dead ends: 488093 [2022-01-18 15:42:17,388 INFO L226 Difference]: Without dead ends: 482887 [2022-01-18 15:42:17,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2022-01-18 15:42:17,389 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 474 mSDsluCounter, 2005 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 2056 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 15:42:17,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 2056 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 15:42:19,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482887 states. [2022-01-18 15:42:29,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482887 to 430848. [2022-01-18 15:42:30,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430848 states, 430847 states have (on average 3.5628123208470757) internal successors, (1535027), 430847 states have internal predecessors, (1535027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 15:42:34,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430848 states to 430848 states and 1535027 transitions. [2022-01-18 15:42:34,446 INFO L78 Accepts]: Start accepts. Automaton has 430848 states and 1535027 transitions. Word has length 75 [2022-01-18 15:42:34,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:42:34,447 INFO L470 AbstractCegarLoop]: Abstraction has 430848 states and 1535027 transitions. [2022-01-18 15:42:34,447 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) [2022-01-18 15:42:34,447 INFO L276 IsEmpty]: Start isEmpty. Operand 430848 states and 1535027 transitions. Received shutdown request... [2022-01-18 15:42:35,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 15:42:35,580 WARN L594 AbstractCegarLoop]: Verification canceled: while IsEmpty was searching accepting run (input had 430848 states). [2022-01-18 15:42:35,583 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-01-18 15:42:35,583 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-01-18 15:42:35,583 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-01-18 15:42:35,583 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-01-18 15:42:35,583 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-01-18 15:42:35,586 INFO L732 BasicCegarLoop]: Path program histogram: [30] [2022-01-18 15:42:35,587 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 15:42:35,587 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 15:42:35,591 INFO L202 PluginConnector]: Adding new model bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 03:42:35 BasicIcfg [2022-01-18 15:42:35,591 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 15:42:35,592 INFO L158 Benchmark]: Toolchain (without parser) took 536637.68ms. Allocated memory was 341.8MB in the beginning and 16.0GB in the end (delta: 15.7GB). Free memory was 304.5MB in the beginning and 7.8GB in the end (delta: -7.4GB). Peak memory consumption was 8.8GB. Max. memory is 16.0GB. [2022-01-18 15:42:35,592 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 341.8MB. Free memory is still 305.8MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 15:42:35,592 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.99ms. Allocated memory is still 341.8MB. Free memory was 304.3MB in the beginning and 302.8MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2022-01-18 15:42:35,592 INFO L158 Benchmark]: Boogie Preprocessor took 23.24ms. Allocated memory is still 341.8MB. Free memory was 302.8MB in the beginning and 301.9MB in the end (delta: 909.5kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 15:42:35,594 INFO L158 Benchmark]: RCFGBuilder took 288.84ms. Allocated memory is still 341.8MB. Free memory was 301.7MB in the beginning and 290.8MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-18 15:42:35,595 INFO L158 Benchmark]: TraceAbstraction took 536294.81ms. Allocated memory was 341.8MB in the beginning and 16.0GB in the end (delta: 15.7GB). Free memory was 290.2MB in the beginning and 7.8GB in the end (delta: -7.5GB). Peak memory consumption was 8.8GB. Max. memory is 16.0GB. [2022-01-18 15:42:35,601 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 15:42:35,603 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.14ms. Allocated memory is still 341.8MB. Free memory is still 305.8MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 26.99ms. Allocated memory is still 341.8MB. Free memory was 304.3MB in the beginning and 302.8MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.24ms. Allocated memory is still 341.8MB. Free memory was 302.8MB in the beginning and 301.9MB in the end (delta: 909.5kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 288.84ms. Allocated memory is still 341.8MB. Free memory was 301.7MB in the beginning and 290.8MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 536294.81ms. Allocated memory was 341.8MB in the beginning and 16.0GB in the end (delta: 15.7GB). Free memory was 290.2MB in the beginning and 7.8GB in the end (delta: -7.5GB). Peak memory consumption was 8.8GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while IsEmpty was searching accepting run (input had 430848 states). - TimeoutResultAtElement [Line: 108]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while IsEmpty was searching accepting run (input had 430848 states). - TimeoutResultAtElement [Line: 107]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while IsEmpty was searching accepting run (input had 430848 states). - TimeoutResultAtElement [Line: 109]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while IsEmpty was searching accepting run (input had 430848 states). - TimeoutResultAtElement [Line: 107]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while IsEmpty was searching accepting run (input had 430848 states). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 154 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 536.2s, OverallIterations: 30, TraceHistogramMax: 1, PathProgramHistogramMax: 30, EmptinessCheckTime: 33.6s, AutomataDifference: 189.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15998 SdHoareTripleChecker+Valid, 14.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15998 mSDsluCounter, 34992 SdHoareTripleChecker+Invalid, 11.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32850 mSDsCounter, 2583 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23045 IncrementalHoareTripleChecker+Invalid, 25628 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2583 mSolverCounterUnsat, 5732 mSDtfsCounter, 23045 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 656 GetRequests, 70 SyntacticMatches, 6 SemanticMatches, 580 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2706 ImplicationChecksByTransitivity, 8.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=473142occurred in iteration=26, InterpolantAutomatonStates: 483, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 302.7s AutomataMinimizationTime, 30 MinimizatonAttempts, 3001654 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 2250 NumberOfCodeBlocks, 2250 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 2220 ConstructedInterpolants, 0 QuantifiedInterpolants, 17470 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 30 InterpolantComputations, 30 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown [2022-01-18 15:42:35,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 !SESSION 2022-01-18 15:33:36.597 ----------------------------------------------- eclipse.buildId=unknown java.version=11.0.12 java.vendor=Debian BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bakery-4.wvr.bpl Command-line arguments: -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bakery-4.wvr.bpl !ENTRY org.eclipse.osgi 4 0 2022-01-18 15:42:35.842 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d593c5667/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d593c5667/.metadata/.log.