/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/node-trans.wvr.bpl
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This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a
[2022-02-18 16:21:48,789 INFO L177 SettingsManager]: Resetting all preferences to default values...
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[2022-02-18 16:21:48,883 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf
[2022-02-18 16:21:48,907 INFO L113 SettingsManager]: Loading preferences was successful
[2022-02-18 16:21:48,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-18 16:21:48,908 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-18 16:21:48,908 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-18 16:21:48,909 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-18 16:21:48,909 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-18 16:21:48,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-18 16:21:48,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-02-18 16:21:48,909 INFO L138 SettingsManager]: * Use SBE=true
[2022-02-18 16:21:48,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-18 16:21:48,910 INFO L138 SettingsManager]: * sizeof long=4
[2022-02-18 16:21:48,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-02-18 16:21:48,910 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-02-18 16:21:48,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-02-18 16:21:48,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-02-18 16:21:48,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-18 16:21:48,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-02-18 16:21:48,911 INFO L138 SettingsManager]: * sizeof long double=12
[2022-02-18 16:21:48,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-02-18 16:21:48,911 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-02-18 16:21:48,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-02-18 16:21:48,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-18 16:21:48,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-02-18 16:21:48,911 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-02-18 16:21:48,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-02-18 16:21:48,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-18 16:21:48,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-18 16:21:48,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-02-18 16:21:48,912 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-18 16:21:48,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-02-18 16:21:48,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-18 16:21:48,912 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2022-02-18 16:21:48,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-18 16:21:48,912 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-02-18 16:21:49,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-18 16:21:49,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-18 16:21:49,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-18 16:21:49,112 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser...
[2022-02-18 16:21:49,112 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized
[2022-02-18 16:21:49,113 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/node-trans.wvr.bpl
[2022-02-18 16:21:49,113 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/node-trans.wvr.bpl'
[2022-02-18 16:21:49,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-18 16:21:49,131 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2022-02-18 16:21:49,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-18 16:21:49,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-18 16:21:49,131 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-18 16:21:49,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "node-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 04:21:49" (1/1) ...
[2022-02-18 16:21:49,144 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "node-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 04:21:49" (1/1) ...
[2022-02-18 16:21:49,150 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2022-02-18 16:21:49,151 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-18 16:21:49,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-18 16:21:49,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-18 16:21:49,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-02-18 16:21:49,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "node-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 04:21:49" (1/1) ...
[2022-02-18 16:21:49,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "node-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 04:21:49" (1/1) ...
[2022-02-18 16:21:49,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "node-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 04:21:49" (1/1) ...
[2022-02-18 16:21:49,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "node-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 04:21:49" (1/1) ...
[2022-02-18 16:21:49,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "node-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 04:21:49" (1/1) ...
[2022-02-18 16:21:49,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "node-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 04:21:49" (1/1) ...
[2022-02-18 16:21:49,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "node-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 04:21:49" (1/1) ...
[2022-02-18 16:21:49,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-18 16:21:49,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-18 16:21:49,174 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-02-18 16:21:49,175 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-02-18 16:21:49,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "node-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 04:21:49" (1/1) ...
[2022-02-18 16:21:49,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-18 16:21:49,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-18 16:21:49,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-02-18 16:21:49,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-02-18 16:21:49,236 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration
[2022-02-18 16:21:49,237 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2022-02-18 16:21:49,237 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2022-02-18 16:21:49,237 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration
[2022-02-18 16:21:49,237 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2022-02-18 16:21:49,237 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2022-02-18 16:21:49,237 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2022-02-18 16:21:49,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-18 16:21:49,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-18 16:21:49,237 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration
[2022-02-18 16:21:49,237 INFO L130 BoogieDeclarations]: Found specification of procedure thread3
[2022-02-18 16:21:49,237 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3
[2022-02-18 16:21:49,238 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-02-18 16:21:49,273 INFO L234 CfgBuilder]: Building ICFG
[2022-02-18 16:21:49,274 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-18 16:21:49,343 INFO L275 CfgBuilder]: Performing block encoding
[2022-02-18 16:21:49,360 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-18 16:21:49,360 INFO L299 CfgBuilder]: Removed 0 assume(true) statements.
[2022-02-18 16:21:49,361 INFO L202 PluginConnector]: Adding new model node-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 04:21:49 BoogieIcfgContainer
[2022-02-18 16:21:49,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-18 16:21:49,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-18 16:21:49,363 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-02-18 16:21:49,369 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-02-18 16:21:49,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "node-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 04:21:49" (1/2) ...
[2022-02-18 16:21:49,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610329f0 and model type node-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 04:21:49, skipping insertion in model container
[2022-02-18 16:21:49,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "node-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 04:21:49" (2/2) ...
[2022-02-18 16:21:49,371 INFO L111 eAbstractionObserver]: Analyzing ICFG node-trans.wvr.bpl
[2022-02-18 16:21:49,374 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-02-18 16:21:49,374 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-18 16:21:49,374 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-18 16:21:49,375 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-02-18 16:21:49,397 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2022-02-18 16:21:49,455 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-18 16:21:49,459 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true
[2022-02-18 16:21:49,459 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2022-02-18 16:21:49,467 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 19 transitions, 62 flow
[2022-02-18 16:21:49,485 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 55 states, 54 states have (on average 2.037037037037037) internal successors, (110), 54 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 16:21:49,487 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 54 states have (on average 2.037037037037037) internal successors, (110), 54 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 16:21:49,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2022-02-18 16:21:49,491 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 16:21:49,492 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 16:21:49,492 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-18 16:21:49,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 16:21:49,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1339387511, now seen corresponding path program 1 times
[2022-02-18 16:21:49,501 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 16:21:49,502 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291789883]
[2022-02-18 16:21:49,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 16:21:49,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 16:21:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 16:21:49,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 16:21:49,886 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 16:21:49,886 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291789883]
[2022-02-18 16:21:49,886 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291789883] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 16:21:49,886 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 16:21:49,887 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-02-18 16:21:49,888 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674910909]
[2022-02-18 16:21:49,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 16:21:49,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-02-18 16:21:49,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 16:21:49,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-02-18 16:21:49,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-02-18 16:21:49,910 INFO L87 Difference]: Start difference. First operand has 55 states, 54 states have (on average 2.037037037037037) internal successors, (110), 54 states have internal predecessors, (110), 0 states have call successors, (0), 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 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 16:21:50,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 16:21:50,120 INFO L93 Difference]: Finished difference Result 93 states and 173 transitions.
[2022-02-18 16:21:50,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-02-18 16:21:50,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 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 14
[2022-02-18 16:21:50,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 16:21:50,128 INFO L225 Difference]: With dead ends: 93
[2022-02-18 16:21:50,128 INFO L226 Difference]: Without dead ends: 72
[2022-02-18 16:21:50,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-18 16:21:50,134 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 30 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-02-18 16:21:50,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 26 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-02-18 16:21:50,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states.
[2022-02-18 16:21:50,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 55.
[2022-02-18 16:21:50,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 2.0) internal successors, (108), 54 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 16:21:50,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 108 transitions.
[2022-02-18 16:21:50,172 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 108 transitions. Word has length 14
[2022-02-18 16:21:50,173 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 16:21:50,173 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 108 transitions.
[2022-02-18 16:21:50,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 16:21:50,173 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 108 transitions.
[2022-02-18 16:21:50,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2022-02-18 16:21:50,174 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 16:21:50,174 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 16:21:50,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-18 16:21:50,174 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-18 16:21:50,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 16:21:50,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1006513431, now seen corresponding path program 2 times
[2022-02-18 16:21:50,175 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 16:21:50,175 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23214550]
[2022-02-18 16:21:50,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 16:21:50,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 16:21:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 16:21:50,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 16:21:50,451 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 16:21:50,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23214550]
[2022-02-18 16:21:50,451 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23214550] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 16:21:50,451 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 16:21:50,451 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-02-18 16:21:50,452 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095902789]
[2022-02-18 16:21:50,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 16:21:50,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-02-18 16:21:50,458 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 16:21:50,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-02-18 16:21:50,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-02-18 16:21:50,459 INFO L87 Difference]: Start difference. First operand 55 states and 108 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 16:21:50,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 16:21:50,603 INFO L93 Difference]: Finished difference Result 91 states and 166 transitions.
[2022-02-18 16:21:50,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-02-18 16:21:50,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 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 14
[2022-02-18 16:21:50,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 16:21:50,604 INFO L225 Difference]: With dead ends: 91
[2022-02-18 16:21:50,605 INFO L226 Difference]: Without dead ends: 70
[2022-02-18 16:21:50,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-18 16:21:50,606 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 31 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-18 16:21:50,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 26 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-18 16:21:50,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states.
[2022-02-18 16:21:50,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 53.
[2022-02-18 16:21:50,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 2.0) internal successors, (104), 52 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 16:21:50,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 104 transitions.
[2022-02-18 16:21:50,617 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 104 transitions. Word has length 14
[2022-02-18 16:21:50,617 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 16:21:50,617 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 104 transitions.
[2022-02-18 16:21:50,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 16:21:50,617 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 104 transitions.
[2022-02-18 16:21:50,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2022-02-18 16:21:50,618 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 16:21:50,618 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 16:21:50,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-02-18 16:21:50,618 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-18 16:21:50,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 16:21:50,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1302626411, now seen corresponding path program 3 times
[2022-02-18 16:21:50,619 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 16:21:50,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573884027]
[2022-02-18 16:21:50,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 16:21:50,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 16:21:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 16:21:50,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 16:21:50,842 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 16:21:50,842 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573884027]
[2022-02-18 16:21:50,842 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573884027] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 16:21:50,842 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 16:21:50,842 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-02-18 16:21:50,842 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048939148]
[2022-02-18 16:21:50,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 16:21:50,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-02-18 16:21:50,843 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 16:21:50,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-02-18 16:21:50,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-02-18 16:21:50,844 INFO L87 Difference]: Start difference. First operand 53 states and 104 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 16:21:51,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 16:21:51,019 INFO L93 Difference]: Finished difference Result 85 states and 154 transitions.
[2022-02-18 16:21:51,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-02-18 16:21:51,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 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 14
[2022-02-18 16:21:51,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 16:21:51,020 INFO L225 Difference]: With dead ends: 85
[2022-02-18 16:21:51,021 INFO L226 Difference]: Without dead ends: 64
[2022-02-18 16:21:51,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-18 16:21:51,022 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 29 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-18 16:21:51,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 24 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-18 16:21:51,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states.
[2022-02-18 16:21:51,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 47.
[2022-02-18 16:21:51,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.9130434782608696) internal successors, (88), 46 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 16:21:51,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 88 transitions.
[2022-02-18 16:21:51,026 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 88 transitions. Word has length 14
[2022-02-18 16:21:51,026 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 16:21:51,027 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 88 transitions.
[2022-02-18 16:21:51,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 16:21:51,027 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 88 transitions.
[2022-02-18 16:21:51,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2022-02-18 16:21:51,027 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 16:21:51,027 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 16:21:51,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-02-18 16:21:51,028 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-18 16:21:51,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 16:21:51,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1148523209, now seen corresponding path program 4 times
[2022-02-18 16:21:51,029 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 16:21:51,029 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156135444]
[2022-02-18 16:21:51,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 16:21:51,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 16:21:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 16:21:51,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 16:21:51,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 16:21:51,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156135444]
[2022-02-18 16:21:51,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156135444] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 16:21:51,172 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 16:21:51,172 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-02-18 16:21:51,172 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508459818]
[2022-02-18 16:21:51,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 16:21:51,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-02-18 16:21:51,173 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 16:21:51,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-02-18 16:21:51,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-02-18 16:21:51,174 INFO L87 Difference]: Start difference. First operand 47 states and 88 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 16:21:51,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 16:21:51,282 INFO L93 Difference]: Finished difference Result 73 states and 135 transitions.
[2022-02-18 16:21:51,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-02-18 16:21:51,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 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 14
[2022-02-18 16:21:51,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 16:21:51,284 INFO L225 Difference]: With dead ends: 73
[2022-02-18 16:21:51,285 INFO L226 Difference]: Without dead ends: 40
[2022-02-18 16:21:51,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-18 16:21:51,291 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 25 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-18 16:21:51,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 24 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-18 16:21:51,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2022-02-18 16:21:51,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40.
[2022-02-18 16:21:51,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.8461538461538463) internal successors, (72), 39 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 16:21:51,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 72 transitions.
[2022-02-18 16:21:51,302 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 72 transitions. Word has length 14
[2022-02-18 16:21:51,302 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 16:21:51,303 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 72 transitions.
[2022-02-18 16:21:51,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 16:21:51,303 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 72 transitions.
[2022-02-18 16:21:51,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2022-02-18 16:21:51,303 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 16:21:51,303 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 16:21:51,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-02-18 16:21:51,304 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-18 16:21:51,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 16:21:51,304 INFO L85 PathProgramCache]: Analyzing trace with hash -625433735, now seen corresponding path program 5 times
[2022-02-18 16:21:51,304 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 16:21:51,304 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653783582]
[2022-02-18 16:21:51,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 16:21:51,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 16:21:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 16:21:51,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 16:21:51,588 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 16:21:51,588 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653783582]
[2022-02-18 16:21:51,588 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653783582] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 16:21:51,588 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 16:21:51,588 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-02-18 16:21:51,588 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442104979]
[2022-02-18 16:21:51,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 16:21:51,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-02-18 16:21:51,589 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 16:21:51,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-02-18 16:21:51,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-02-18 16:21:51,591 INFO L87 Difference]: Start difference. First operand 40 states and 72 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 16:21:51,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 16:21:51,737 INFO L93 Difference]: Finished difference Result 55 states and 96 transitions.
[2022-02-18 16:21:51,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-02-18 16:21:51,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 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 14
[2022-02-18 16:21:51,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 16:21:51,738 INFO L225 Difference]: With dead ends: 55
[2022-02-18 16:21:51,738 INFO L226 Difference]: Without dead ends: 36
[2022-02-18 16:21:51,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-18 16:21:51,739 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 25 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-18 16:21:51,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 16 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-18 16:21:51,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states.
[2022-02-18 16:21:51,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36.
[2022-02-18 16:21:51,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.7714285714285714) internal successors, (62), 35 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 16:21:51,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 62 transitions.
[2022-02-18 16:21:51,741 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 62 transitions. Word has length 14
[2022-02-18 16:21:51,741 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 16:21:51,741 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 62 transitions.
[2022-02-18 16:21:51,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 16:21:51,742 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 62 transitions.
[2022-02-18 16:21:51,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2022-02-18 16:21:51,742 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-18 16:21:51,742 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-18 16:21:51,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-02-18 16:21:51,742 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-18 16:21:51,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-18 16:21:51,743 INFO L85 PathProgramCache]: Analyzing trace with hash 2092191831, now seen corresponding path program 6 times
[2022-02-18 16:21:51,743 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-18 16:21:51,743 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996509026]
[2022-02-18 16:21:51,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-18 16:21:51,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-18 16:21:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-18 16:21:51,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-18 16:21:51,979 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-18 16:21:51,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996509026]
[2022-02-18 16:21:51,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996509026] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-18 16:21:51,979 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-18 16:21:51,979 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-02-18 16:21:51,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074947113]
[2022-02-18 16:21:51,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-18 16:21:51,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-02-18 16:21:51,980 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-18 16:21:51,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-02-18 16:21:51,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-02-18 16:21:51,981 INFO L87 Difference]: Start difference. First operand 36 states and 62 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 16:21:52,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-18 16:21:52,090 INFO L93 Difference]: Finished difference Result 34 states and 60 transitions.
[2022-02-18 16:21:52,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-02-18 16:21:52,091 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 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 14
[2022-02-18 16:21:52,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-18 16:21:52,091 INFO L225 Difference]: With dead ends: 34
[2022-02-18 16:21:52,091 INFO L226 Difference]: Without dead ends: 0
[2022-02-18 16:21:52,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-02-18 16:21:52,092 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 17 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-18 16:21:52,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 10 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-18 16:21:52,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-02-18 16:21:52,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-02-18 16:21:52,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 16:21:52,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-02-18 16:21:52,093 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14
[2022-02-18 16:21:52,093 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-18 16:21:52,093 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-02-18 16:21:52,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-02-18 16:21:52,094 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-02-18 16:21:52,094 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-02-18 16:21:52,096 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining)
[2022-02-18 16:21:52,098 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining)
[2022-02-18 16:21:52,098 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining)
[2022-02-18 16:21:52,098 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining)
[2022-02-18 16:21:52,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-02-18 16:21:52,101 INFO L732 BasicCegarLoop]: Path program histogram: [6]
[2022-02-18 16:21:52,102 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-02-18 16:21:52,102 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-02-18 16:21:52,104 INFO L202 PluginConnector]: Adding new model node-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 04:21:52 BasicIcfg
[2022-02-18 16:21:52,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-18 16:21:52,104 INFO L158 Benchmark]: Toolchain (without parser) took 2973.53ms. Allocated memory was 201.3MB in the beginning and 264.2MB in the end (delta: 62.9MB). Free memory was 162.3MB in the beginning and 202.2MB in the end (delta: -39.9MB). Peak memory consumption was 23.6MB. Max. memory is 8.0GB.
[2022-02-18 16:21:52,104 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 201.3MB. Free memory is still 163.4MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-02-18 16:21:52,104 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.18ms. Allocated memory is still 201.3MB. Free memory was 162.2MB in the beginning and 160.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-02-18 16:21:52,105 INFO L158 Benchmark]: Boogie Preprocessor took 20.70ms. Allocated memory is still 201.3MB. Free memory was 160.6MB in the beginning and 159.7MB in the end (delta: 953.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-02-18 16:21:52,105 INFO L158 Benchmark]: RCFGBuilder took 187.43ms. Allocated memory is still 201.3MB. Free memory was 159.6MB in the beginning and 150.0MB in the end (delta: 9.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB.
[2022-02-18 16:21:52,105 INFO L158 Benchmark]: TraceAbstraction took 2741.03ms. Allocated memory was 201.3MB in the beginning and 264.2MB in the end (delta: 62.9MB). Free memory was 149.5MB in the beginning and 202.2MB in the end (delta: -52.7MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB.
[2022-02-18 16:21:52,106 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 0.11ms. Allocated memory is still 201.3MB. Free memory is still 163.4MB. There was no memory consumed. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 20.18ms. Allocated memory is still 201.3MB. Free memory was 162.2MB in the beginning and 160.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 20.70ms. Allocated memory is still 201.3MB. Free memory was 160.6MB in the beginning and 159.7MB in the end (delta: 953.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* RCFGBuilder took 187.43ms. Allocated memory is still 201.3MB. Free memory was 159.6MB in the beginning and 150.0MB in the end (delta: 9.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB.
* TraceAbstraction took 2741.03ms. Allocated memory was 201.3MB in the beginning and 264.2MB in the end (delta: 62.9MB). Free memory was 149.5MB in the beginning and 202.2MB in the end (delta: -52.7MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 68]: assertion always holds
For all program executions holds that assertion always holds at this location
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 7 procedures, 32 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 157 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 157 mSDsluCounter, 126 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 191 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 270 IncrementalHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 52 mSDtfsCounter, 270 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 51 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 2073 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2022-02-18 16:21:52,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...