/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bakery-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 21:14:46,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 21:14:46,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 21:14:46,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 21:14:46,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 21:14:46,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 21:14:46,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 21:14:46,506 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 21:14:46,526 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 21:14:46,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 21:14:46,527 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 21:14:46,527 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 21:14:46,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 21:14:46,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 21:14:46,528 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 21:14:46,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 21:14:46,529 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 21:14:46,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 21:14:46,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 21:14:46,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 21:14:46,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 21:14:46,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 21:14:46,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 21:14:46,530 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 21:14:46,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 21:14:46,530 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 21:14:46,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 21:14:46,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 21:14:46,530 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 21:14:46,531 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 21:14:46,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 21:14:46,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 21:14:46,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 21:14:46,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 21:14:46,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 21:14:46,531 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 21:14:46,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 21:14:46,532 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 21:14:46,532 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 21:14:46,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 21:14:46,532 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 21:14:46,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 21:14:46,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 21:14:46,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 21:14:46,766 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-15 21:14:46,767 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-15 21:14:46,768 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bakery-4.wvr.bpl [2022-03-15 21:14:46,768 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bakery-4.wvr.bpl' [2022-03-15 21:14:46,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 21:14:46,795 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-15 21:14:46,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 21:14:46,796 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 21:14:46,797 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 21:14:46,807 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 15.03 09:14:46" (1/1) ... [2022-03-15 21:14:46,814 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 15.03 09:14:46" (1/1) ... [2022-03-15 21:14:46,819 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-15 21:14:46,821 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 21:14:46,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 21:14:46,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 21:14:46,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 21:14:46,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:14:46" (1/1) ... [2022-03-15 21:14:46,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:14:46" (1/1) ... [2022-03-15 21:14:46,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:14:46" (1/1) ... [2022-03-15 21:14:46,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:14:46" (1/1) ... [2022-03-15 21:14:46,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:14:46" (1/1) ... [2022-03-15 21:14:46,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:14:46" (1/1) ... [2022-03-15 21:14:46,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:14:46" (1/1) ... [2022-03-15 21:14:46,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 21:14:46,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 21:14:46,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 21:14:46,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 21:14:46,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:14:46" (1/1) ... [2022-03-15 21:14:46,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 21:14:46,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 21:14:46,866 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 21:14:46,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 21:14:46,908 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-15 21:14:46,908 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 21:14:46,909 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 21:14:46,909 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-15 21:14:46,909 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 21:14:46,909 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 21:14:46,909 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-15 21:14:46,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 21:14:46,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 21:14:46,910 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-15 21:14:46,910 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 21:14:46,910 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 21:14:46,910 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-15 21:14:46,910 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-15 21:14:46,911 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-15 21:14:46,912 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 21:14:46,954 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 21:14:46,956 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 21:14:47,087 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 21:14:47,095 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 21:14:47,095 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 21:14:47,097 INFO L202 PluginConnector]: Adding new model bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 09:14:47 BoogieIcfgContainer [2022-03-15 21:14:47,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 21:14:47,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 21:14:47,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 21:14:47,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 21:14:47,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:14:46" (1/2) ... [2022-03-15 21:14:47,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d87ce and model type bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 09:14:47, skipping insertion in model container [2022-03-15 21:14:47,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 09:14:47" (2/2) ... [2022-03-15 21:14:47,104 INFO L111 eAbstractionObserver]: Analyzing ICFG bakery-4.wvr.bpl [2022-03-15 21:14:47,126 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 21:14:47,126 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 21:14:47,126 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 21:14:47,126 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 21:14:47,244 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-15 21:14:47,317 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 21:14:47,322 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 21:14:47,323 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-15 21:14:47,368 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 21:14:47,378 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 81 transitions, 194 flow [2022-03-15 21:14:47,381 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 81 transitions, 194 flow [2022-03-15 21:14:47,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 81 transitions, 194 flow [2022-03-15 21:14:47,463 INFO L129 PetriNetUnfolder]: 0/77 cut-off events. [2022-03-15 21:14:47,463 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-03-15 21:14:47,465 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 77 events. 0/77 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 196 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-03-15 21:14:47,470 INFO L116 LiptonReduction]: Number of co-enabled transitions 3456 [2022-03-15 21:14:47,557 INFO L131 LiptonReduction]: Checked pairs total: 17385 [2022-03-15 21:14:47,557 INFO L133 LiptonReduction]: Total number of compositions: 7 [2022-03-15 21:14:47,564 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 88 places, 75 transitions, 182 flow [2022-03-15 21:14:49,910 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 74276 states, 74275 states have (on average 3.749983170649613) internal successors, (278530), 74275 states have internal predecessors, (278530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:14:50,167 INFO L276 IsEmpty]: Start isEmpty. Operand has 74276 states, 74275 states have (on average 3.749983170649613) internal successors, (278530), 74275 states have internal predecessors, (278530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:14:50,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-15 21:14:50,824 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 21:14:50,825 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] [2022-03-15 21:14:50,826 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 21:14:50,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 21:14:50,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1065119013, now seen corresponding path program 1 times [2022-03-15 21:14:50,847 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 21:14:50,850 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988875534] [2022-03-15 21:14:50,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 21:14:50,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 21:14:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 21:14:51,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 21:14:51,166 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 21:14:51,166 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988875534] [2022-03-15 21:14:51,167 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988875534] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 21:14:51,167 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 21:14:51,167 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 21:14:51,168 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [807255090] [2022-03-15 21:14:51,169 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 21:14:51,191 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 21:14:51,646 INFO L252 McrAutomatonBuilder]: Finished intersection with 495 states and 1131 transitions. [2022-03-15 21:14:51,647 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 21:14:54,334 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 21:14:54,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 21:14:54,336 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 21:14:54,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 21:14:54,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 21:14:54,501 INFO L87 Difference]: Start difference. First operand has 74276 states, 74275 states have (on average 3.749983170649613) internal successors, (278530), 74275 states have internal predecessors, (278530), 0 states have call successors, (0), 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 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:14:55,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 21:14:55,536 INFO L93 Difference]: Finished difference Result 74276 states and 274365 transitions. [2022-03-15 21:14:55,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 21:14:55,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 70 [2022-03-15 21:14:55,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 21:14:56,255 INFO L225 Difference]: With dead ends: 74276 [2022-03-15 21:14:56,256 INFO L226 Difference]: Without dead ends: 74276 [2022-03-15 21:14:56,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 426 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 21:14:56,264 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 37 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 21:14:56,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 143 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 21:14:56,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74276 states. [2022-03-15 21:14:58,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74276 to 74276. [2022-03-15 21:14:59,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74276 states, 74275 states have (on average 3.693907775159879) internal successors, (274365), 74275 states have internal predecessors, (274365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:14:59,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74276 states to 74276 states and 274365 transitions. [2022-03-15 21:14:59,819 INFO L78 Accepts]: Start accepts. Automaton has 74276 states and 274365 transitions. Word has length 70 [2022-03-15 21:14:59,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 21:14:59,820 INFO L470 AbstractCegarLoop]: Abstraction has 74276 states and 274365 transitions. [2022-03-15 21:14:59,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:14:59,821 INFO L276 IsEmpty]: Start isEmpty. Operand 74276 states and 274365 transitions. [2022-03-15 21:15:00,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-15 21:15:00,103 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 21:15:00,104 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] [2022-03-15 21:15:00,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 21:15:00,105 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 21:15:00,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 21:15:00,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1079964403, now seen corresponding path program 2 times [2022-03-15 21:15:00,108 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 21:15:00,108 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066344204] [2022-03-15 21:15:00,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 21:15:00,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 21:15:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 21:15:00,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 21:15:00,171 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 21:15:00,171 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066344204] [2022-03-15 21:15:00,171 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066344204] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 21:15:00,171 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 21:15:00,171 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 21:15:00,171 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [261974526] [2022-03-15 21:15:00,172 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 21:15:00,186 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 21:15:00,604 INFO L252 McrAutomatonBuilder]: Finished intersection with 647 states and 1545 transitions. [2022-03-15 21:15:00,604 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 21:15:02,656 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 21:15:02,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 21:15:02,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 21:15:02,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 21:15:02,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 21:15:02,659 INFO L87 Difference]: Start difference. First operand 74276 states and 274365 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:15:03,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 21:15:03,204 INFO L93 Difference]: Finished difference Result 74276 states and 270200 transitions. [2022-03-15 21:15:03,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 21:15:03,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 70 [2022-03-15 21:15:03,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 21:15:03,816 INFO L225 Difference]: With dead ends: 74276 [2022-03-15 21:15:03,817 INFO L226 Difference]: Without dead ends: 74276 [2022-03-15 21:15:03,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 550 GetRequests, 549 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 21:15:03,818 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 20 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 21:15:03,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 143 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 21:15:03,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74276 states. [2022-03-15 21:15:05,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74276 to 74276. [2022-03-15 21:15:06,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74276 states, 74275 states have (on average 3.6378323796701446) internal successors, (270200), 74275 states have internal predecessors, (270200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:15:06,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74276 states to 74276 states and 270200 transitions. [2022-03-15 21:15:06,659 INFO L78 Accepts]: Start accepts. Automaton has 74276 states and 270200 transitions. Word has length 70 [2022-03-15 21:15:06,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 21:15:06,660 INFO L470 AbstractCegarLoop]: Abstraction has 74276 states and 270200 transitions. [2022-03-15 21:15:06,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:15:06,660 INFO L276 IsEmpty]: Start isEmpty. Operand 74276 states and 270200 transitions. [2022-03-15 21:15:06,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-15 21:15:06,855 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 21:15:06,855 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] [2022-03-15 21:15:06,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 21:15:06,856 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 21:15:06,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 21:15:06,856 INFO L85 PathProgramCache]: Analyzing trace with hash 2067914109, now seen corresponding path program 3 times [2022-03-15 21:15:06,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 21:15:06,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183453891] [2022-03-15 21:15:06,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 21:15:06,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 21:15:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 21:15:07,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 21:15:07,153 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 21:15:07,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183453891] [2022-03-15 21:15:07,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183453891] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 21:15:07,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 21:15:07,154 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 21:15:07,154 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1352149194] [2022-03-15 21:15:07,154 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 21:15:07,171 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 21:15:07,749 INFO L252 McrAutomatonBuilder]: Finished intersection with 775 states and 1878 transitions. [2022-03-15 21:15:07,749 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 21:16:24,467 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 38 new interpolants: [594342#(and (or (< n4 n1) (<= 0 n3) (< n3 n1)) (or (< n4 n1) (<= 0 n4) (< n3 n1))), 594338#(and (<= 0 n3) (<= 0 n4) (<= n1 n3) (<= n1 n4)), 594358#(and (or (<= 0 n3) (not (= n1 0))) (or (<= 0 n4) (not (= n1 0))) (or (<= 0 n3) (< n1 n2) (= n2 n1)) (or (< n1 n2) (<= 0 n4) (= n2 n1))), 594350#(and (or (< n4 n1) (<= 0 n3) (< n3 n1) (< n2 n1)) (or (< n4 n1) (<= 0 n4) (< n3 n1) (< n2 n1))), 594355#(and (or (not (= n2 0)) (<= 0 n4)) (or (<= 0 n3) (not (= n2 0))) (or (<= 0 n4) (< n2 n1)) (or (<= 0 n3) (< n2 n1))), 594343#(and (or (< n4 n2) (< n4 n1) (<= 0 n3) (< n3 n1)) (or (< n4 n2) (< n4 n1) (<= 0 n4) (< n3 n1)) (or (<= 0 n3) (not (= n4 0)) (< n3 n1))), 594341#(and (or (< n4 n2) (< n4 n1) (<= 0 n3)) (or (< n4 n2) (< n4 n1) (<= 0 n4)) (or (<= 0 n3) (not (= n4 0)))), 594328#(and (or (not (= n1 0)) (< n2 n4) (<= 1 n3) (= n4 n2)) (or (= n4 n1) (< n2 n4) (<= 1 n3) (= n4 n2) (< n1 n4)) (or (= n4 n1) (= n4 n3) (< n3 n4) (< n2 n4) (= n4 n2) (< n1 n4)) (or (not (= n2 0)) (not (= n1 0)) (<= 1 n3)) (or (not (= n2 0)) (= n4 n3) (not (= n1 0)) (< n3 n4)) (or (= n4 n1) (not (= n2 0)) (= n4 n3) (< n3 n4) (< n1 n4)) (or (= n4 n1) (not (= n2 0)) (<= 1 n3) (< n1 n4)) (or (= n4 n3) (not (= n1 0)) (< n3 n4) (< n2 n4) (= n4 n2))), 594327#(and (or (not (= n1 0)) (not (= n3 0)) (< n2 n4) (= n4 n2)) (or (= n4 n1) (= n4 n3) (< n3 n4) (< n2 n4) (= n4 n2) (< n1 n4)) (or (not (= n2 0)) (= n4 n3) (not (= n1 0)) (< n3 n4)) (or (not (= n2 0)) (not (= n1 0)) (not (= n3 0))) (or (= n4 n1) (not (= n2 0)) (not (= n3 0)) (< n1 n4)) (or (= n4 n1) (not (= n2 0)) (= n4 n3) (< n3 n4) (< n1 n4)) (or (= n4 n3) (not (= n1 0)) (< n3 n4) (< n2 n4) (= n4 n2)) (or (= n4 n1) (not (= n3 0)) (< n2 n4) (= n4 n2) (< n1 n4))), 594333#(and (<= 0 n4) (<= 0 n2)), 594336#(and (<= 0 n4) (or (not (< n3 n1)) (<= 0 n1)) (or (<= 0 n3) (< n3 n1))), 594352#(and (or (< n4 n2) (<= 0 n4) (< n2 n1) (< n3 n2)) (or (< n4 n2) (<= 0 n3) (< n2 n1) (< n3 n2))), 594331#(and (<= 0 n3) (<= (+ n3 1) n4)), 594344#(and (or (< n4 n2) (<= 0 n4) (< n3 n2)) (or (< n4 n2) (<= 0 n3) (< n3 n2))), 594337#(and (<= 0 n3) (<= 0 n4) (<= n1 n4)), 594351#(and (or (< n4 n2) (<= 0 n4) (< n3 n1) (< n2 n1)) (or (<= 0 n3) (not (= n4 0)) (< n3 n1) (< n2 n1)) (or (< n4 n2) (<= 0 n3) (< n3 n1) (< n2 n1))), 594325#(and (or (not (= n4 0)) (= n3 n2) (not (= n1 0)) (< n2 n3)) (or (not (= n4 0)) (= n3 n2) (= n3 n1) (< n2 n3) (< n1 n3)) (or (= n3 n2) (= n3 n1) (< n4 n3) (< n2 n3) (< n1 n3)) (or (not (= n2 0)) (not (= n4 0)) (= n3 n1) (< n1 n3)) (or (not (= n2 0)) (not (= n4 0)) (not (= n1 0))) (or (not (= n2 0)) (not (= n1 0)) (< n4 n3)) (or (not (= n2 0)) (= n3 n1) (< n4 n3) (< n1 n3)) (or (= n3 n2) (not (= n1 0)) (< n4 n3) (< n2 n3))), 594323#(and (not (= n4 0)) (< n4 n3)), 594321#(and (not (= n3 0)) (or (= n4 n3) (< n3 n4))), 594335#(and (<= 0 n4) (<= 0 n2) (or (not (< n3 n1)) (<= 0 n1)) (or (<= 0 n3) (< n3 n1))), 594332#(and (or (= n3 n2) (= n3 n1) (< n2 n3) (<= 1 n3) (< n1 n3)) (or (= n3 n2) (= n3 n1) (<= n3 n4) (< n2 n3) (< n1 n3)) (or (not (= n2 0)) (= n3 n1) (<= n3 n4) (< n1 n3)) (or (= n3 n2) (not (= n1 0)) (< n2 n3) (<= 1 n3)) (or (= n3 n2) (not (= n1 0)) (<= n3 n4) (< n2 n3)) (or (not (= n2 0)) (not (= n1 0)) (<= n3 n4)) (or (not (= n2 0)) (not (= n3 0)) (< n1 n3))), 594324#(and (or (not (= n2 0)) (< n4 n3)) (or (not (= n4 0)) (= n3 n2) (< n2 n3)) (or (= n3 n2) (< n4 n3) (< n2 n3)) (or (not (= n2 0)) (not (= n4 0)))), 594357#(and (or (< n1 n2) (<= 0 n4) (not (= n3 0)) (= n2 n1)) (or (< n1 n2) (<= 0 n4) (= n2 n1) (< n3 n2)) (or (<= 0 n4) (not (= n1 0)) (not (= n3 0))) (or (<= 0 n4) (not (= n1 0)) (< n3 n2)) (or (<= 0 n3) (< n1 n2) (= n2 n1) (< n3 n2))), 594334#(and (<= 0 n3) (<= 0 n2) (or (< n4 n1) (<= 0 n4)) (or (<= 0 n1) (not (< n4 n1)))), 594349#(and (or (< n4 n1) (<= 0 n3) (< n1 n2) (< n3 n1) (= n2 n1)) (or (< n4 n1) (< n1 n2) (<= 0 n4) (< n3 n1) (= n2 n1))), 594339#(and (or (< n4 n1) (<= 0 n4)) (or (< n4 n1) (<= 0 n3)) (or (<= 0 n3) (not (= n4 0)))), 594345#(and (or (< n4 n2) (< n4 n1) (<= 0 n3) (< n3 n2)) (or (<= 0 n3) (not (= n4 0)) (< n3 n2)) (or (< n4 n2) (< n4 n1) (<= 0 n4) (< n3 n2))), 594347#(and (or (< n4 n2) (< n1 n2) (<= 0 n4) (= n2 n1) (< n3 n2)) (or (< n4 n2) (<= 0 n3) (< n1 n2) (= n2 n1) (< n3 n2))), 594354#(and (or (<= 0 n4) (not (= n3 0)) (< n2 n1)) (or (<= 0 n3) (< n3 n1) (< n2 n1)) (or (not (= n2 0)) (<= 0 n4) (not (= n3 0))) (or (not (= n2 0)) (<= 0 n4) (< n3 n1)) (or (<= 0 n4) (< n3 n1) (< n2 n1))), 594348#(and (or (<= 0 n3) (< n1 n2) (not (= n4 0)) (= n2 n1) (< n3 n2)) (or (< n4 n1) (<= 0 n3) (< n1 n2) (= n2 n1) (< n3 n2)) (or (< n4 n1) (< n1 n2) (<= 0 n4) (= n2 n1) (< n3 n2))), 594322#(and (or (not (= n2 0)) (not (= n3 0))) (or (not (= n2 0)) (= n4 n3) (< n3 n4)) (or (not (= n3 0)) (< n2 n4) (= n4 n2)) (or (= n4 n3) (< n3 n4) (< n2 n4) (= n4 n2))), 594356#(and (or (<= 0 n4) (< n3 n2)) (or (<= 0 n4) (not (= n3 0))) (or (<= 0 n3) (< n3 n2))), 594329#(and (or (not (= n2 0)) (<= n3 n4)) (or (= n3 n2) (< n2 n3) (<= 1 n3)) (or (not (= n2 0)) (<= 1 n3)) (or (= n3 n2) (<= n3 n4) (< n2 n3))), 594340#(and (or (< n4 n2) (<= 0 n3)) (or (<= 0 n3) (not (= n4 0))) (or (< n4 n2) (<= 0 n4))), 594346#(and (or (< n4 n2) (< n4 n1) (<= 0 n3) (< n3 n1) (< n3 n2)) (or (< n4 n2) (< n4 n1) (<= 0 n4) (< n3 n1) (< n3 n2))), 594326#(and (or (< n2 n4) (<= 1 n3) (= n4 n2)) (or (not (= n2 0)) (<= 1 n3)) (or (not (= n2 0)) (= n4 n3) (< n3 n4)) (or (= n4 n3) (< n3 n4) (< n2 n4) (= n4 n2))), 594353#(and (or (<= 0 n4) (< n3 n1)) (or (<= 0 n3) (< n3 n1)) (or (<= 0 n4) (not (= n3 0)))), 594330#(and (or (not (= n1 0)) (< n3 (+ n4 1)) (< n2 (+ n4 1)) (= n3 (+ n4 1)) (= n2 (+ n4 1))) (or (= n1 (+ n4 1)) (< n1 (+ n4 1)) (< n3 (+ n4 1)) (< n2 (+ n4 1)) (= n3 (+ n4 1)) (= n2 (+ n4 1))) (or (= n1 (+ n4 1)) (not (= n2 0)) (< n1 (+ n4 1)) (< n3 (+ n4 1)) (= n3 (+ n4 1))) (or (not (= n2 0)) (not (= n1 0)) (<= 1 n3)) (or (not (= n2 0)) (not (= n1 0)) (< n3 (+ n4 1)) (= n3 (+ n4 1))) (or (= n1 (+ n4 1)) (< n1 (+ n4 1)) (< n2 (+ n4 1)) (<= 1 n3) (= n2 (+ n4 1))) (or (not (= n1 0)) (< n2 (+ n4 1)) (<= 1 n3) (= n2 (+ n4 1))) (or (= n1 (+ n4 1)) (not (= n2 0)) (< n1 (+ n4 1)) (<= 1 n3)))] [2022-03-15 21:16:24,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-03-15 21:16:24,467 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 21:16:24,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-03-15 21:16:24,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=505, Invalid=1751, Unknown=0, NotChecked=0, Total=2256 [2022-03-15 21:16:24,469 INFO L87 Difference]: Start difference. First operand 74276 states and 270200 transitions. Second operand has 48 states, 48 states have (on average 7.458333333333333) internal successors, (358), 48 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:16:35,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 21:16:35,963 INFO L93 Difference]: Finished difference Result 437065 states and 1592613 transitions. [2022-03-15 21:16:35,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-03-15 21:16:35,963 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 7.458333333333333) internal successors, (358), 48 states have internal predecessors, (358), 0 states have call successors, (0), 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 70 [2022-03-15 21:16:35,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 21:16:39,240 INFO L225 Difference]: With dead ends: 437065 [2022-03-15 21:16:39,240 INFO L226 Difference]: Without dead ends: 433677 [2022-03-15 21:16:39,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 828 GetRequests, 672 SyntacticMatches, 33 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4519 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=4297, Invalid=11203, Unknown=0, NotChecked=0, Total=15500 [2022-03-15 21:16:39,245 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 3023 mSDsluCounter, 4045 mSDsCounter, 0 mSdLazyCounter, 4602 mSolverCounterSat, 886 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3023 SdHoareTripleChecker+Valid, 3804 SdHoareTripleChecker+Invalid, 5488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 886 IncrementalHoareTripleChecker+Valid, 4602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-15 21:16:39,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3023 Valid, 3804 Invalid, 5488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [886 Valid, 4602 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-15 21:16:40,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433677 states. [2022-03-15 21:16:49,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433677 to 137770. [2022-03-15 21:16:49,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137770 states, 137769 states have (on average 3.6094839913188017) internal successors, (497275), 137769 states have internal predecessors, (497275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:16:50,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137770 states to 137770 states and 497275 transitions. [2022-03-15 21:16:50,754 INFO L78 Accepts]: Start accepts. Automaton has 137770 states and 497275 transitions. Word has length 70 [2022-03-15 21:16:50,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 21:16:50,754 INFO L470 AbstractCegarLoop]: Abstraction has 137770 states and 497275 transitions. [2022-03-15 21:16:50,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 7.458333333333333) internal successors, (358), 48 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:16:50,754 INFO L276 IsEmpty]: Start isEmpty. Operand 137770 states and 497275 transitions. [2022-03-15 21:16:51,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-15 21:16:51,166 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 21:16:51,166 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] [2022-03-15 21:16:51,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 21:16:51,167 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 21:16:51,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 21:16:51,167 INFO L85 PathProgramCache]: Analyzing trace with hash 998118525, now seen corresponding path program 4 times [2022-03-15 21:16:51,169 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 21:16:51,169 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231553606] [2022-03-15 21:16:51,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 21:16:51,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 21:16:51,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 21:16:51,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 21:16:51,331 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 21:16:51,331 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231553606] [2022-03-15 21:16:51,331 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231553606] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 21:16:51,331 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 21:16:51,332 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 21:16:51,332 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [674359915] [2022-03-15 21:16:51,332 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 21:16:51,343 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 21:16:51,771 INFO L252 McrAutomatonBuilder]: Finished intersection with 758 states and 1835 transitions. [2022-03-15 21:16:51,771 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 21:17:18,903 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 43 new interpolants: [1307238#(and (not (= n1 0)) (or (< n1 n2) (= n2 n1))), 1307211#(and (or (not (= n4 0)) (< n3 n1) (< n3 n2)) (or (not (= n4 0)) (not (= n3 0))) (or (< n4 n2) (< n4 n1) (< n3 n1) (< n3 n2)) (or (< n4 n2) (< n4 n1) (not (= n3 0)))), 1307237#(and (<= 0 n4) (or (<= 0 n3) (not (< n1 n2)) (not (< n2 n3))) (or (<= 0 n2) (not (< n1 n2)) (< n2 n3)) (or (<= 0 n3) (not (< n1 n3)) (< n1 n2)) (or (< n1 n2) (<= 0 n1) (< n1 n3))), 1307234#(and (or (< n1 n2) (= n2 n1) (< n3 n2)) (or (not (= n1 0)) (< n3 n2)) (or (not (= n1 0)) (not (= n3 0))) (or (< n1 n2) (not (= n3 0)) (= n2 n1))), 1307221#(and (or (not (= (+ n1 1) 0)) (< n4 (+ n2 1)) (< n2 n1) (< n3 (+ n2 1))) (or (not (= (+ n2 1) 0)) (< n1 n2) (not (= n4 0)) (not (= n3 0))) (or (not (= (+ n1 1) 0)) (not (= n3 0)) (< n4 (+ n2 1)) (< n2 n1)) (or (not (= (+ n2 1) 0)) (< n1 n2) (not (= n4 0)) (< n3 (+ n1 1))) (or (not (= (+ n2 1) 0)) (< n4 (+ n1 1)) (< n1 n2) (< n3 (+ n1 1))) (or (not (= (+ n2 1) 0)) (< n4 (+ n1 1)) (< n1 n2) (not (= n3 0))) (or (not (= (+ n1 1) 0)) (not (= n4 0)) (not (= n3 0)) (< n2 n1)) (or (not (= (+ n1 1) 0)) (not (= n4 0)) (< n2 n1) (< n3 (+ n2 1)))), 1307227#(or (not (= (+ n1 1) 0)) (not (= n4 0)) (not (= n3 0))), 1307213#(and (or (< n1 n2) (not (= n4 0)) (not (= n3 0)) (= n2 n1)) (or (not (= n4 0)) (not (= n1 0)) (not (= n3 0))) (or (< n4 n1) (< n1 n2) (not (= n3 0)) (= n2 n1)) (or (< n1 n2) (not (= n4 0)) (= n2 n1) (< n3 n2)) (or (< n4 n1) (< n1 n2) (= n2 n1) (< n3 n2)) (or (not (= n4 0)) (not (= n1 0)) (< n3 n2)) (or (< n4 n2) (< n4 n1) (not (= n1 0)) (< n3 n2)) (or (< n4 n2) (< n4 n1) (not (= n1 0)) (not (= n3 0)))), 1307209#(and (or (< n4 n1) (not (= n3 0))) (or (not (= n4 0)) (not (= n3 0))) (or (< n4 n1) (< n3 n1)) (or (not (= n4 0)) (< n3 n1))), 1307230#(and (< n3 n1) (not (= n3 0))), 1307233#(and (not (= n3 0)) (< n3 n2)), 1307201#(and (or (= n3 n2) (= n3 n1) (< n2 n3) (< n1 n3)) (or (not (= n2 0)) (= n3 n1) (< n1 n3)) (or (not (= n2 0)) (not (= n1 0))) (or (= n3 n2) (not (= n1 0)) (< n2 n3))), 1307231#(and (or (< n3 n1) (< n2 n1)) (or (not (= n2 0)) (not (= n3 0))) (or (not (= n2 0)) (< n3 n1)) (or (not (= n3 0)) (< n2 n1))), 1307203#(and (or (not (= n2 0)) (not (= n1 0))) (or (= n1 (+ n4 1)) (< n1 (+ n4 1)) (< n2 (+ n4 1)) (= n2 (+ n4 1))) (or (not (= n1 0)) (< n2 (+ n4 1)) (= n2 (+ n4 1))) (or (= n1 (+ n4 1)) (not (= n2 0)) (< n1 (+ n4 1)))), 1307239#(and (or (not (< n3 n4)) (<= 0 n4) (not (< n2 n3))) (or (<= 0 n3) (< n3 n4) (not (< n2 n3))) (or (<= 0 n2) (< n2 n4) (< n2 n3)) (or (<= 0 n4) (< n2 n3) (not (< n2 n4))) (<= 1 n1)), 1307204#(and (< n4 n1) (not (= n4 0))), 1307224#(and (or (not (= n2 0)) (not (= n4 0)) (< n3 (+ n1 1)) (< n1 n4)) (or (not (= n2 0)) (not (= n4 0)) (< n3 (+ n4 1)) (not (< n1 n4))) (or (not (= n2 0)) (not (= n4 0)) (not (= n3 0)))), 1307218#(and (or (not (= n2 0)) (< n1 n2) (not (= n4 0)) (< n3 n1)) (or (< n4 n2) (not (= n1 0)) (not (= n3 0)) (< n2 n1)) (or (< n4 n1) (not (= n2 0)) (< n1 n2) (< n3 n1)) (or (< n4 n1) (not (= n2 0)) (< n1 n2) (not (= n3 0))) (or (not (= n4 0)) (not (= n1 0)) (not (= n3 0)) (< n2 n1)) (or (not (= n2 0)) (< n1 n2) (not (= n4 0)) (not (= n3 0))) (or (not (= n4 0)) (not (= n1 0)) (< n2 n1) (< n3 n2)) (or (< n4 n2) (not (= n1 0)) (< n2 n1) (< n3 n2))), 1307226#(or (not (= n4 0)) (not (= n1 0)) (not (= n3 0))), 1307228#(and (<= 1 n2) (<= 0 n1)), 1307229#(and (<= 1 n2) (or (<= 0 n1) (< n1 n4)) (or (<= 0 n4) (not (< n1 n4)))), 1307208#(and (or (not (= n4 0)) (not (= n3 0))) (or (< n4 n2) (< n4 n1) (< n3 n2)) (or (< n4 n2) (< n4 n1) (not (= n3 0))) (or (not (= n4 0)) (< n3 n2))), 1307236#(and (<= 0 n4) (or (<= 0 n1) (< n1 n3)) (or (<= 0 n3) (not (< n1 n3)))), 1307200#(and (not (= n2 0)) (or (= n3 n2) (< n2 n3))), 1307240#(and (or (<= 0 n4) (not (< n2 n4))) (or (<= 0 n2) (< n2 n4)) (<= 0 n1)), 1307220#(and (or (not (= n2 0)) (< n4 (+ n1 1)) (< (+ n1 1) n2) (not (= n3 0))) (or (not (= n2 0)) (not (= n4 0)) (< (+ n1 1) n2) (not (= n3 0))) (or (not (= (+ n1 1) 0)) (not (= n4 0)) (< n2 (+ n1 1)) (< n3 n2)) (or (not (= (+ n1 1) 0)) (not (= n4 0)) (< n2 (+ n1 1)) (not (= n3 0))) (or (not (= n2 0)) (< n4 (+ n1 1)) (< (+ n1 1) n2) (< n3 (+ n1 1))) (or (< n4 n2) (not (= (+ n1 1) 0)) (< n2 (+ n1 1)) (not (= n3 0))) (or (< n4 n2) (not (= (+ n1 1) 0)) (< n2 (+ n1 1)) (< n3 n2)) (or (not (= n2 0)) (not (= n4 0)) (< (+ n1 1) n2) (< n3 (+ n1 1)))), 1307212#(and (or (< n4 n2) (not (= n1 0)) (not (= n3 0))) (or (< n1 n2) (not (= n4 0)) (not (= n3 0)) (= n2 n1)) (or (not (= n4 0)) (not (= n1 0)) (not (= n3 0))) (or (< n1 n2) (not (= n4 0)) (= n2 n1) (< n3 n2)) (or (< n4 n2) (not (= n1 0)) (< n3 n2)) (or (not (= n4 0)) (not (= n1 0)) (< n3 n2)) (or (< n4 n2) (< n1 n2) (= n2 n1) (< n3 n2)) (or (< n4 n2) (< n1 n2) (not (= n3 0)) (= n2 n1))), 1307214#(and (or (< n1 n2) (not (= n4 0)) (not (= n3 0)) (= n2 n1)) (or (not (= n4 0)) (not (= n1 0)) (not (= n3 0))) (or (< n4 n1) (< n1 n2) (not (= n3 0)) (= n2 n1)) (or (< n4 n2) (< n4 n1) (not (= n1 0)) (< n3 n1) (< n3 n2)) (or (not (= n4 0)) (not (= n1 0)) (< n3 n1) (< n3 n2)) (or (< n1 n2) (not (= n4 0)) (< n3 n1) (= n2 n1)) (or (< n4 n2) (< n4 n1) (not (= n1 0)) (not (= n3 0))) (or (< n4 n1) (< n1 n2) (< n3 n1) (= n2 n1))), 1307202#(and (or (not (= n2 0)) (not (= n1 0))) (or (= n4 n1) (not (= n2 0)) (< n1 n4)) (or (= n4 n1) (< n2 n4) (= n4 n2) (< n1 n4)) (or (not (= n1 0)) (< n2 n4) (= n4 n2))), 1307225#(and (or (not (= (+ n2 1) 0)) (not (= n4 0)) (< n3 (+ n4 1)) (not (< n1 n4))) (or (not (= (+ n2 1) 0)) (not (= n4 0)) (< n3 (+ n1 1)) (< n1 n4)) (or (not (= (+ n2 1) 0)) (not (= n4 0)) (not (= n3 0)))), 1307241#(and (or (not (< n3 n4)) (<= 0 n4) (not (< n2 n3))) (or (<= 0 n3) (< n3 n4) (not (< n2 n3))) (<= 0 n1) (or (<= 0 n2) (< n2 n4) (< n2 n3)) (or (<= 0 n4) (< n2 n3) (not (< n2 n4)))), 1307206#(and (or (< n4 n2) (< n4 n1)) (not (= n4 0))), 1307199#(and (not (= n2 0)) (or (< n2 n4) (= n4 n2))), 1307216#(and (or (< n4 n2) (< n4 n1) (not (= n2 0)) (not (= n3 0))) (or (< n4 n2) (< n3 n1) (< n2 n1)) (or (not (= n2 0)) (not (= n4 0)) (< n3 n1)) (or (not (= n4 0)) (< n3 n1) (< n2 n1)) (or (< n4 n2) (not (= n3 0)) (< n2 n1)) (or (not (= n2 0)) (not (= n4 0)) (not (= n3 0))) (or (not (= n4 0)) (not (= n3 0)) (< n2 n1)) (or (< n4 n2) (< n4 n1) (not (= n2 0)) (< n3 n1))), 1307215#(and (or (< n4 n1) (not (= n2 0)) (< n3 n1)) (or (< n4 n1) (not (= n3 0)) (< n2 n1)) (or (not (= n2 0)) (not (= n4 0)) (< n3 n1)) (or (not (= n4 0)) (< n3 n1) (< n2 n1)) (or (< n4 n1) (< n3 n1) (< n2 n1)) (or (not (= n2 0)) (not (= n4 0)) (not (= n3 0))) (or (not (= n4 0)) (not (= n3 0)) (< n2 n1)) (or (< n4 n1) (not (= n2 0)) (not (= n3 0)))), 1307217#(and (or (not (= n4 0)) (< n2 n1) (< n3 n2)) (or (< n4 n2) (< n4 n1) (not (= n2 0)) (not (= n3 0))) (or (< n4 n2) (< n4 n1) (not (= n2 0)) (< n3 n1) (< n3 n2)) (or (not (= n2 0)) (not (= n4 0)) (< n3 n1) (< n3 n2)) (or (< n4 n2) (not (= n3 0)) (< n2 n1)) (or (< n4 n2) (< n2 n1) (< n3 n2)) (or (not (= n2 0)) (not (= n4 0)) (not (= n3 0))) (or (not (= n4 0)) (not (= n3 0)) (< n2 n1))), 1307219#(and (or (not (= (+ n2 1) 0)) (< n4 n1) (not (= n3 0)) (< n1 (+ n2 1))) (or (not (= (+ n2 1) 0)) (not (= n4 0)) (not (= n3 0)) (< n1 (+ n2 1))) (or (not (= n4 0)) (< (+ n2 1) n1) (not (= n1 0)) (< n3 (+ n2 1))) (or (not (= (+ n2 1) 0)) (not (= n4 0)) (< n3 n1) (< n1 (+ n2 1))) (or (not (= n4 0)) (< (+ n2 1) n1) (not (= n1 0)) (not (= n3 0))) (or (< (+ n2 1) n1) (not (= n1 0)) (not (= n3 0)) (< n4 (+ n2 1))) (or (not (= (+ n2 1) 0)) (< n4 n1) (< n3 n1) (< n1 (+ n2 1))) (or (< (+ n2 1) n1) (not (= n1 0)) (< n4 (+ n2 1)) (< n3 (+ n2 1)))), 1307235#(and (or (<= 0 n4) (not (< n2 n4))) (or (<= 0 n2) (< n2 n4)) (<= 1 n1)), 1307205#(and (< n4 n2) (not (= n4 0))), 1307223#(and (or (not (= (+ n1 1) 0)) (not (= n4 0)) (not (= n3 0))) (or (not (= (+ n1 1) 0)) (not (= n4 0)) (< n2 n4) (< n3 (+ n2 1))) (or (not (= (+ n1 1) 0)) (not (= n4 0)) (< n3 (+ n4 1)) (not (< n2 n4)))), 1307210#(and (or (not (= n4 0)) (not (= n3 0))) (or (< n4 n2) (< n4 n1) (< n3 n1)) (or (< n4 n2) (< n4 n1) (not (= n3 0))) (or (not (= n4 0)) (< n3 n1))), 1307222#(and (or (not (= n4 0)) (not (= n1 0)) (not (= n3 0))) (or (not (= n4 0)) (not (= n1 0)) (< n3 (+ n4 1)) (not (< n2 n4))) (or (not (= n4 0)) (not (= n1 0)) (< n2 n4) (< n3 (+ n2 1)))), 1307232#(and (not (= n2 0)) (< n2 n1)), 1307207#(and (or (< n4 n2) (not (= n3 0))) (or (not (= n4 0)) (not (= n3 0))) (or (not (= n4 0)) (< n3 n2)) (or (< n4 n2) (< n3 n2)))] [2022-03-15 21:17:18,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-03-15 21:17:18,904 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 21:17:18,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-03-15 21:17:18,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=452, Invalid=2304, Unknown=0, NotChecked=0, Total=2756 [2022-03-15 21:17:18,906 INFO L87 Difference]: Start difference. First operand 137770 states and 497275 transitions. Second operand has 53 states, 53 states have (on average 6.150943396226415) internal successors, (326), 53 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:18:06,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 21:18:06,762 INFO L93 Difference]: Finished difference Result 856184 states and 2952516 transitions. [2022-03-15 21:18:06,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 435 states. [2022-03-15 21:18:06,763 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 6.150943396226415) internal successors, (326), 53 states have internal predecessors, (326), 0 states have call successors, (0), 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 70 [2022-03-15 21:18:06,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted.