/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/bench/exp2x9.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 18:53:58,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 18:53:58,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 18:53:58,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-03 18:53:58,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 18:53:58,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 18:53:58,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 18:53:58,699 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-03 18:53:58,734 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 18:53:58,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 18:53:58,735 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 18:53:58,735 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 18:53:58,736 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 18:53:58,736 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 18:53:58,737 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 18:53:58,737 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 18:53:58,737 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 18:53:58,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 18:53:58,738 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 18:53:58,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 18:53:58,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 18:53:58,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 18:53:58,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 18:53:58,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 18:53:58,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 18:53:58,739 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 18:53:58,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 18:53:58,739 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 18:53:58,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 18:53:58,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 18:53:58,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 18:53:58,740 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 18:53:58,741 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 18:53:58,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 18:53:58,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 18:53:58,742 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 18:53:58,742 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 18:53:58,742 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 18:53:58,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 18:53:58,742 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 18:53:58,742 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 18:53:58,742 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 18:53:58,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 18:53:59,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 18:53:59,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 18:53:59,010 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-03 18:53:59,014 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-03 18:53:59,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl [2022-03-03 18:53:59,016 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl' [2022-03-03 18:53:59,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 18:53:59,043 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-03 18:53:59,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 18:53:59,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 18:53:59,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 18:53:59,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:53:59" (1/1) ... [2022-03-03 18:53:59,062 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:53:59" (1/1) ... [2022-03-03 18:53:59,069 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-03 18:53:59,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 18:53:59,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 18:53:59,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 18:53:59,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 18:53:59,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:53:59" (1/1) ... [2022-03-03 18:53:59,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:53:59" (1/1) ... [2022-03-03 18:53:59,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:53:59" (1/1) ... [2022-03-03 18:53:59,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:53:59" (1/1) ... [2022-03-03 18:53:59,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:53:59" (1/1) ... [2022-03-03 18:53:59,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:53:59" (1/1) ... [2022-03-03 18:53:59,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:53:59" (1/1) ... [2022-03-03 18:53:59,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 18:53:59,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 18:53:59,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 18:53:59,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 18:53:59,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:53:59" (1/1) ... [2022-03-03 18:53:59,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 18:53:59,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 18:53:59,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-03 18:53:59,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-03 18:53:59,181 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-03 18:53:59,181 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-03 18:53:59,181 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-03 18:53:59,182 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-03 18:53:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-03 18:53:59,182 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-03 18:53:59,182 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-03 18:53:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 18:53:59,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 18:53:59,183 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-03 18:53:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-03 18:53:59,183 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-03 18:53:59,183 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-03 18:53:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-03 18:53:59,184 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-03 18:53:59,185 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 18:53:59,225 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 18:53:59,226 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 18:53:59,329 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 18:53:59,336 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 18:53:59,337 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-03 18:53:59,339 INFO L202 PluginConnector]: Adding new model exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 06:53:59 BoogieIcfgContainer [2022-03-03 18:53:59,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 18:53:59,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 18:53:59,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 18:53:59,344 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 18:53:59,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:53:59" (1/2) ... [2022-03-03 18:53:59,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@688e954d and model type exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 06:53:59, skipping insertion in model container [2022-03-03 18:53:59,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 06:53:59" (2/2) ... [2022-03-03 18:53:59,346 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x9.wvr.bpl [2022-03-03 18:53:59,351 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 18:53:59,352 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 18:53:59,352 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 18:53:59,352 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 18:53:59,401 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-03 18:53:59,479 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 18:53:59,503 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 18:53:59,503 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-03 18:53:59,527 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 57 transitions, 146 flow [2022-03-03 18:54:00,165 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 12225 states, 12224 states have (on average 3.9794666230366493) internal successors, (48645), 12224 states have internal predecessors, (48645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:00,210 INFO L276 IsEmpty]: Start isEmpty. Operand has 12225 states, 12224 states have (on average 3.9794666230366493) internal successors, (48645), 12224 states have internal predecessors, (48645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:00,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-03 18:54:00,359 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:54:00,360 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:54:00,361 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:54:00,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:54:00,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1817176082, now seen corresponding path program 1 times [2022-03-03 18:54:00,379 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:54:00,381 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324081811] [2022-03-03 18:54:00,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:54:00,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:54:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:54:00,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:54:00,649 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:54:00,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324081811] [2022-03-03 18:54:00,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324081811] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:54:00,650 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:54:00,651 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-03 18:54:00,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611846241] [2022-03-03 18:54:00,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:54:00,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:54:00,657 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:54:00,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:54:00,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:54:00,751 INFO L87 Difference]: Start difference. First operand has 12225 states, 12224 states have (on average 3.9794666230366493) internal successors, (48645), 12224 states have internal predecessors, (48645), 0 states have call successors, (0), 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 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:01,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:54:01,187 INFO L93 Difference]: Finished difference Result 12650 states and 50294 transitions. [2022-03-03 18:54:01,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:54:01,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2022-03-03 18:54:01,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:54:01,493 INFO L225 Difference]: With dead ends: 12650 [2022-03-03 18:54:01,493 INFO L226 Difference]: Without dead ends: 12619 [2022-03-03 18:54:01,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:54:01,504 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 4 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:54:01,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 36 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:54:01,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12619 states. [2022-03-03 18:54:02,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12619 to 12354. [2022-03-03 18:54:02,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12354 states, 12353 states have (on average 3.977900105237594) internal successors, (49139), 12353 states have internal predecessors, (49139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:02,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12354 states to 12354 states and 49139 transitions. [2022-03-03 18:54:02,252 INFO L78 Accepts]: Start accepts. Automaton has 12354 states and 49139 transitions. Word has length 19 [2022-03-03 18:54:02,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:54:02,254 INFO L470 AbstractCegarLoop]: Abstraction has 12354 states and 49139 transitions. [2022-03-03 18:54:02,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:02,256 INFO L276 IsEmpty]: Start isEmpty. Operand 12354 states and 49139 transitions. [2022-03-03 18:54:02,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-03 18:54:02,569 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:54:02,569 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] [2022-03-03 18:54:02,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 18:54:02,570 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:54:02,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:54:02,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1924913497, now seen corresponding path program 1 times [2022-03-03 18:54:02,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:54:02,575 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935205143] [2022-03-03 18:54:02,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:54:02,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:54:02,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:54:02,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:54:02,685 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:54:02,685 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935205143] [2022-03-03 18:54:02,686 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935205143] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:54:02,686 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:54:02,686 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:54:02,686 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788100513] [2022-03-03 18:54:02,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:54:02,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-03 18:54:02,689 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:54:02,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-03 18:54:02,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-03 18:54:02,691 INFO L87 Difference]: Start difference. First operand 12354 states and 49139 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:03,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:54:03,223 INFO L93 Difference]: Finished difference Result 19078 states and 74517 transitions. [2022-03-03 18:54:03,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-03 18:54:03,235 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2022-03-03 18:54:03,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:54:03,352 INFO L225 Difference]: With dead ends: 19078 [2022-03-03 18:54:03,352 INFO L226 Difference]: Without dead ends: 19078 [2022-03-03 18:54:03,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-03 18:54:03,360 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 89 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:54:03,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 101 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:54:03,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19078 states. [2022-03-03 18:54:04,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19078 to 13566. [2022-03-03 18:54:04,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13566 states, 13565 states have (on average 3.9962403243641726) internal successors, (54209), 13565 states have internal predecessors, (54209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:04,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13566 states to 13566 states and 54209 transitions. [2022-03-03 18:54:04,308 INFO L78 Accepts]: Start accepts. Automaton has 13566 states and 54209 transitions. Word has length 27 [2022-03-03 18:54:04,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:54:04,309 INFO L470 AbstractCegarLoop]: Abstraction has 13566 states and 54209 transitions. [2022-03-03 18:54:04,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:04,309 INFO L276 IsEmpty]: Start isEmpty. Operand 13566 states and 54209 transitions. [2022-03-03 18:54:04,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-03 18:54:04,415 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:54:04,415 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] [2022-03-03 18:54:04,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 18:54:04,416 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:54:04,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:54:04,417 INFO L85 PathProgramCache]: Analyzing trace with hash -961019923, now seen corresponding path program 1 times [2022-03-03 18:54:04,417 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:54:04,417 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224034664] [2022-03-03 18:54:04,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:54:04,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:54:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:54:04,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:54:04,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:54:04,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224034664] [2022-03-03 18:54:04,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224034664] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:54:04,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:54:04,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:54:04,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689331833] [2022-03-03 18:54:04,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:54:04,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-03 18:54:04,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:54:04,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-03 18:54:04,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-03 18:54:04,455 INFO L87 Difference]: Start difference. First operand 13566 states and 54209 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:04,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:54:04,868 INFO L93 Difference]: Finished difference Result 19630 states and 77107 transitions. [2022-03-03 18:54:04,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-03 18:54:04,869 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2022-03-03 18:54:04,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:54:05,003 INFO L225 Difference]: With dead ends: 19630 [2022-03-03 18:54:05,004 INFO L226 Difference]: Without dead ends: 19630 [2022-03-03 18:54:05,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-03 18:54:05,005 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 83 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:54:05,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 121 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:54:05,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19630 states. [2022-03-03 18:54:05,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19630 to 15003. [2022-03-03 18:54:05,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15003 states, 15002 states have (on average 4.021930409278763) internal successors, (60337), 15002 states have internal predecessors, (60337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:05,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15003 states to 15003 states and 60337 transitions. [2022-03-03 18:54:05,739 INFO L78 Accepts]: Start accepts. Automaton has 15003 states and 60337 transitions. Word has length 27 [2022-03-03 18:54:05,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:54:05,740 INFO L470 AbstractCegarLoop]: Abstraction has 15003 states and 60337 transitions. [2022-03-03 18:54:05,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:05,741 INFO L276 IsEmpty]: Start isEmpty. Operand 15003 states and 60337 transitions. [2022-03-03 18:54:05,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-03 18:54:05,795 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:54:05,795 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] [2022-03-03 18:54:05,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-03 18:54:05,796 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:54:05,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:54:05,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1657381619, now seen corresponding path program 1 times [2022-03-03 18:54:05,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:54:05,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409054147] [2022-03-03 18:54:05,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:54:05,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:54:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:54:05,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:54:05,846 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:54:05,846 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409054147] [2022-03-03 18:54:05,846 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409054147] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:54:05,846 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:54:05,847 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:54:05,847 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509961670] [2022-03-03 18:54:05,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:54:05,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-03 18:54:05,847 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:54:05,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-03 18:54:05,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-03 18:54:05,848 INFO L87 Difference]: Start difference. First operand 15003 states and 60337 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:06,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:54:06,098 INFO L93 Difference]: Finished difference Result 17397 states and 69147 transitions. [2022-03-03 18:54:06,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-03 18:54:06,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2022-03-03 18:54:06,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:54:06,309 INFO L225 Difference]: With dead ends: 17397 [2022-03-03 18:54:06,309 INFO L226 Difference]: Without dead ends: 17389 [2022-03-03 18:54:06,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-03 18:54:06,311 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 98 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:54:06,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 121 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:54:06,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17389 states. [2022-03-03 18:54:06,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17389 to 15239. [2022-03-03 18:54:06,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15239 states, 15238 states have (on average 4.012009450059063) internal successors, (61135), 15238 states have internal predecessors, (61135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:06,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15239 states to 15239 states and 61135 transitions. [2022-03-03 18:54:06,906 INFO L78 Accepts]: Start accepts. Automaton has 15239 states and 61135 transitions. Word has length 27 [2022-03-03 18:54:06,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:54:06,907 INFO L470 AbstractCegarLoop]: Abstraction has 15239 states and 61135 transitions. [2022-03-03 18:54:06,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:06,907 INFO L276 IsEmpty]: Start isEmpty. Operand 15239 states and 61135 transitions. [2022-03-03 18:54:06,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-03 18:54:06,961 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:54:06,961 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] [2022-03-03 18:54:06,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-03 18:54:06,962 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:54:06,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:54:06,962 INFO L85 PathProgramCache]: Analyzing trace with hash 531191895, now seen corresponding path program 1 times [2022-03-03 18:54:06,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:54:06,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74892859] [2022-03-03 18:54:06,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:54:06,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:54:06,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:54:07,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:54:07,018 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:54:07,018 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74892859] [2022-03-03 18:54:07,018 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74892859] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:54:07,018 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:54:07,018 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:54:07,018 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056248725] [2022-03-03 18:54:07,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:54:07,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-03 18:54:07,019 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:54:07,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-03 18:54:07,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-03 18:54:07,019 INFO L87 Difference]: Start difference. First operand 15239 states and 61135 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:07,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:54:07,247 INFO L93 Difference]: Finished difference Result 17433 states and 69120 transitions. [2022-03-03 18:54:07,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-03 18:54:07,248 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2022-03-03 18:54:07,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:54:07,594 INFO L225 Difference]: With dead ends: 17433 [2022-03-03 18:54:07,594 INFO L226 Difference]: Without dead ends: 17415 [2022-03-03 18:54:07,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-03 18:54:07,607 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 85 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:54:07,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 122 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:54:07,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17415 states. [2022-03-03 18:54:08,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17415 to 15481. [2022-03-03 18:54:08,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15481 states, 15480 states have (on average 4.002260981912145) internal successors, (61955), 15480 states have internal predecessors, (61955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:08,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15481 states to 15481 states and 61955 transitions. [2022-03-03 18:54:08,245 INFO L78 Accepts]: Start accepts. Automaton has 15481 states and 61955 transitions. Word has length 27 [2022-03-03 18:54:08,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:54:08,246 INFO L470 AbstractCegarLoop]: Abstraction has 15481 states and 61955 transitions. [2022-03-03 18:54:08,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:08,246 INFO L276 IsEmpty]: Start isEmpty. Operand 15481 states and 61955 transitions. [2022-03-03 18:54:08,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-03 18:54:08,290 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:54:08,290 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] [2022-03-03 18:54:08,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-03 18:54:08,291 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:54:08,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:54:08,292 INFO L85 PathProgramCache]: Analyzing trace with hash -253055853, now seen corresponding path program 2 times [2022-03-03 18:54:08,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:54:08,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798432536] [2022-03-03 18:54:08,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:54:08,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:54:08,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:54:08,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:54:08,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:54:08,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798432536] [2022-03-03 18:54:08,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798432536] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:54:08,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:54:08,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:54:08,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22129435] [2022-03-03 18:54:08,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:54:08,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-03 18:54:08,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:54:08,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-03 18:54:08,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-03 18:54:08,323 INFO L87 Difference]: Start difference. First operand 15481 states and 61955 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:08,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:54:08,568 INFO L93 Difference]: Finished difference Result 18408 states and 73042 transitions. [2022-03-03 18:54:08,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-03 18:54:08,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2022-03-03 18:54:08,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:54:08,645 INFO L225 Difference]: With dead ends: 18408 [2022-03-03 18:54:08,645 INFO L226 Difference]: Without dead ends: 18408 [2022-03-03 18:54:08,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-03 18:54:08,647 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 86 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:54:08,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 102 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:54:08,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18408 states. [2022-03-03 18:54:09,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18408 to 16911. [2022-03-03 18:54:09,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16911 states, 16910 states have (on average 3.9978710821998815) internal successors, (67604), 16910 states have internal predecessors, (67604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:09,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16911 states to 16911 states and 67604 transitions. [2022-03-03 18:54:09,610 INFO L78 Accepts]: Start accepts. Automaton has 16911 states and 67604 transitions. Word has length 27 [2022-03-03 18:54:09,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:54:09,610 INFO L470 AbstractCegarLoop]: Abstraction has 16911 states and 67604 transitions. [2022-03-03 18:54:09,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:09,610 INFO L276 IsEmpty]: Start isEmpty. Operand 16911 states and 67604 transitions. [2022-03-03 18:54:09,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-03 18:54:09,654 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:54:09,654 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] [2022-03-03 18:54:09,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-03 18:54:09,655 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:54:09,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:54:09,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1382652649, now seen corresponding path program 2 times [2022-03-03 18:54:09,656 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:54:09,656 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271245733] [2022-03-03 18:54:09,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:54:09,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:54:09,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:54:09,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:54:09,690 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:54:09,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271245733] [2022-03-03 18:54:09,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271245733] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:54:09,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:54:09,690 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:54:09,691 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020979437] [2022-03-03 18:54:09,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:54:09,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-03 18:54:09,691 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:54:09,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-03 18:54:09,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-03 18:54:09,692 INFO L87 Difference]: Start difference. First operand 16911 states and 67604 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:09,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:54:09,914 INFO L93 Difference]: Finished difference Result 18407 states and 72770 transitions. [2022-03-03 18:54:09,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-03 18:54:09,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2022-03-03 18:54:09,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:54:09,984 INFO L225 Difference]: With dead ends: 18407 [2022-03-03 18:54:09,985 INFO L226 Difference]: Without dead ends: 18376 [2022-03-03 18:54:09,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-03 18:54:09,986 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 92 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:54:09,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 122 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:54:10,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18376 states. [2022-03-03 18:54:10,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18376 to 17154. [2022-03-03 18:54:10,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17154 states, 17153 states have (on average 3.9884568297090888) internal successors, (68414), 17153 states have internal predecessors, (68414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:10,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17154 states to 17154 states and 68414 transitions. [2022-03-03 18:54:10,614 INFO L78 Accepts]: Start accepts. Automaton has 17154 states and 68414 transitions. Word has length 27 [2022-03-03 18:54:10,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:54:10,614 INFO L470 AbstractCegarLoop]: Abstraction has 17154 states and 68414 transitions. [2022-03-03 18:54:10,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:10,614 INFO L276 IsEmpty]: Start isEmpty. Operand 17154 states and 68414 transitions. [2022-03-03 18:54:10,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-03 18:54:10,658 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:54:10,658 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] [2022-03-03 18:54:10,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-03 18:54:10,658 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:54:10,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:54:10,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1664214835, now seen corresponding path program 2 times [2022-03-03 18:54:10,659 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:54:10,659 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346774593] [2022-03-03 18:54:10,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:54:10,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:54:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:54:10,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:54:10,695 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:54:10,695 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346774593] [2022-03-03 18:54:10,695 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346774593] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:54:10,696 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:54:10,696 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:54:10,696 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903024594] [2022-03-03 18:54:10,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:54:10,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-03 18:54:10,696 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:54:10,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-03 18:54:10,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-03 18:54:10,697 INFO L87 Difference]: Start difference. First operand 17154 states and 68414 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:11,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:54:11,091 INFO L93 Difference]: Finished difference Result 20764 states and 82157 transitions. [2022-03-03 18:54:11,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-03 18:54:11,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2022-03-03 18:54:11,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:54:11,181 INFO L225 Difference]: With dead ends: 20764 [2022-03-03 18:54:11,181 INFO L226 Difference]: Without dead ends: 20764 [2022-03-03 18:54:11,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-03 18:54:11,182 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 91 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:54:11,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 122 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:54:11,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20764 states. [2022-03-03 18:54:11,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20764 to 18641. [2022-03-03 18:54:11,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18641 states, 18640 states have (on average 3.990450643776824) internal successors, (74382), 18640 states have internal predecessors, (74382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:11,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18641 states to 18641 states and 74382 transitions. [2022-03-03 18:54:11,903 INFO L78 Accepts]: Start accepts. Automaton has 18641 states and 74382 transitions. Word has length 27 [2022-03-03 18:54:11,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:54:11,904 INFO L470 AbstractCegarLoop]: Abstraction has 18641 states and 74382 transitions. [2022-03-03 18:54:11,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:11,904 INFO L276 IsEmpty]: Start isEmpty. Operand 18641 states and 74382 transitions. [2022-03-03 18:54:11,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-03 18:54:11,954 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:54:11,954 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] [2022-03-03 18:54:11,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-03 18:54:11,954 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:54:11,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:54:11,954 INFO L85 PathProgramCache]: Analyzing trace with hash -2133714845, now seen corresponding path program 2 times [2022-03-03 18:54:11,955 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:54:11,955 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018285688] [2022-03-03 18:54:11,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:54:11,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:54:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:54:11,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:54:11,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:54:11,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018285688] [2022-03-03 18:54:11,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018285688] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:54:11,988 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:54:11,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:54:11,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444739537] [2022-03-03 18:54:11,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:54:11,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-03 18:54:11,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:54:11,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-03 18:54:11,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-03 18:54:11,990 INFO L87 Difference]: Start difference. First operand 18641 states and 74382 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:12,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:54:12,210 INFO L93 Difference]: Finished difference Result 20639 states and 81242 transitions. [2022-03-03 18:54:12,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-03 18:54:12,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2022-03-03 18:54:12,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:54:12,286 INFO L225 Difference]: With dead ends: 20639 [2022-03-03 18:54:12,286 INFO L226 Difference]: Without dead ends: 20611 [2022-03-03 18:54:12,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-03 18:54:12,287 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 97 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 18:54:12,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 123 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 18:54:12,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20611 states. [2022-03-03 18:54:12,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20611 to 19021. [2022-03-03 18:54:12,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19021 states, 19020 states have (on average 3.982492113564669) internal successors, (75747), 19020 states have internal predecessors, (75747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:13,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19021 states to 19021 states and 75747 transitions. [2022-03-03 18:54:13,236 INFO L78 Accepts]: Start accepts. Automaton has 19021 states and 75747 transitions. Word has length 27 [2022-03-03 18:54:13,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:54:13,237 INFO L470 AbstractCegarLoop]: Abstraction has 19021 states and 75747 transitions. [2022-03-03 18:54:13,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:13,237 INFO L276 IsEmpty]: Start isEmpty. Operand 19021 states and 75747 transitions. [2022-03-03 18:54:13,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-03 18:54:13,286 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:54:13,286 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] [2022-03-03 18:54:13,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-03 18:54:13,287 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:54:13,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:54:13,287 INFO L85 PathProgramCache]: Analyzing trace with hash 784676502, now seen corresponding path program 1 times [2022-03-03 18:54:13,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:54:13,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932902601] [2022-03-03 18:54:13,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:54:13,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:54:13,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:54:13,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:54:13,596 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:54:13,596 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932902601] [2022-03-03 18:54:13,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932902601] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 18:54:13,596 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741936561] [2022-03-03 18:54:13,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:54:13,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 18:54:13,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 18:54:13,599 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 18:54:13,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-03 18:54:13,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:54:13,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 33 conjunts are in the unsatisfiable core [2022-03-03 18:54:13,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 18:54:17,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:54:17,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 18:54:17,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:54:17,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741936561] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 18:54:17,463 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 18:54:17,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 16, 8] total 17 [2022-03-03 18:54:17,463 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486902815] [2022-03-03 18:54:17,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 18:54:17,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-03 18:54:17,464 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:54:17,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-03 18:54:17,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-03-03 18:54:17,465 INFO L87 Difference]: Start difference. First operand 19021 states and 75747 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:25,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:54:25,320 INFO L93 Difference]: Finished difference Result 23319 states and 91627 transitions. [2022-03-03 18:54:25,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 18:54:25,320 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 states have internal predecessors, (55), 0 states have call successors, (0), 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 35 [2022-03-03 18:54:25,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:54:25,496 INFO L225 Difference]: With dead ends: 23319 [2022-03-03 18:54:25,496 INFO L226 Difference]: Without dead ends: 23183 [2022-03-03 18:54:25,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 53 SyntacticMatches, 15 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-03-03 18:54:25,497 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 245 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 4333 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 4539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 4333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-03 18:54:25,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 615 Invalid, 4539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 4333 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2022-03-03 18:54:25,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23183 states. [2022-03-03 18:54:25,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23183 to 20127. [2022-03-03 18:54:25,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20127 states, 20126 states have (on average 3.9697903209778396) internal successors, (79896), 20126 states have internal predecessors, (79896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:25,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20127 states to 20127 states and 79896 transitions. [2022-03-03 18:54:25,980 INFO L78 Accepts]: Start accepts. Automaton has 20127 states and 79896 transitions. Word has length 35 [2022-03-03 18:54:25,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:54:25,980 INFO L470 AbstractCegarLoop]: Abstraction has 20127 states and 79896 transitions. [2022-03-03 18:54:25,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:54:25,981 INFO L276 IsEmpty]: Start isEmpty. Operand 20127 states and 79896 transitions. [2022-03-03 18:54:26,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-03 18:54:26,024 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:54:26,024 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] [2022-03-03 18:54:26,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-03 18:54:26,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-03 18:54:26,225 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 18:54:26,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:54:26,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1146828290, now seen corresponding path program 2 times [2022-03-03 18:54:26,226 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:54:26,226 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194060503] [2022-03-03 18:54:26,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:54:26,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:54:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:54:26,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 18:54:26,423 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:54:26,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194060503] [2022-03-03 18:54:26,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194060503] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 18:54:26,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637265313] [2022-03-03 18:54:26,423 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-03 18:54:26,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 18:54:26,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 18:54:26,425 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 18:54:26,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-03 18:54:26,463 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-03 18:54:26,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 18:54:26,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 33 conjunts are in the unsatisfiable core [2022-03-03 18:54:26,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-03-03 19:08:26,723 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-03 19:08:26,723 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-03 19:08:27,752 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 [2022-03-03 19:08:27,753 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-03 19:08:28,711 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-03 19:08:28,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-03 19:08:28,711 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 36 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2022-03-03 19:08:28,713 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-03 19:08:28,713 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-03 19:08:28,713 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-03 19:08:28,713 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-03 19:08:28,719 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 1] [2022-03-03 19:08:28,723 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-03 19:08:28,723 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-03 19:08:28,731 INFO L202 PluginConnector]: Adding new model exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 07:08:28 BasicIcfg [2022-03-03 19:08:28,731 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-03 19:08:28,731 INFO L158 Benchmark]: Toolchain (without parser) took 869688.70ms. Allocated memory was 170.9MB in the beginning and 6.6GB in the end (delta: 6.5GB). Free memory was 128.9MB in the beginning and 4.0GB in the end (delta: -3.9GB). Peak memory consumption was 5.2GB. Max. memory is 8.0GB. [2022-03-03 19:08:28,732 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.19ms. Allocated memory is still 170.9MB. Free memory is still 130.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-03 19:08:28,732 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.74ms. Allocated memory is still 170.9MB. Free memory was 128.8MB in the beginning and 127.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-03 19:08:28,733 INFO L158 Benchmark]: Boogie Preprocessor took 22.56ms. Allocated memory is still 170.9MB. Free memory was 127.3MB in the beginning and 126.3MB in the end (delta: 927.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-03 19:08:28,733 INFO L158 Benchmark]: RCFGBuilder took 239.84ms. Allocated memory is still 170.9MB. Free memory was 126.2MB in the beginning and 116.4MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-03 19:08:28,733 INFO L158 Benchmark]: TraceAbstraction took 869390.37ms. Allocated memory was 170.9MB in the beginning and 6.6GB in the end (delta: 6.5GB). Free memory was 115.9MB in the beginning and 4.0GB in the end (delta: -3.9GB). Peak memory consumption was 5.2GB. Max. memory is 8.0GB. [2022-03-03 19:08:28,735 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 0.19ms. Allocated memory is still 170.9MB. Free memory is still 130.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.74ms. Allocated memory is still 170.9MB. Free memory was 128.8MB in the beginning and 127.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.56ms. Allocated memory is still 170.9MB. Free memory was 127.3MB in the beginning and 126.3MB in the end (delta: 927.4kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 239.84ms. Allocated memory is still 170.9MB. Free memory was 126.2MB in the beginning and 116.4MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 869390.37ms. Allocated memory was 170.9MB in the beginning and 6.6GB in the end (delta: 6.5GB). Free memory was 115.9MB in the beginning and 4.0GB in the end (delta: -3.9GB). Peak memory consumption was 5.2GB. 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 - TimeoutResultAtElement [Line: 84]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while BasicCegarLoop was analyzing trace of length 36 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 36 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 77]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 36 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 36 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 36 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 98 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 869.2s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 1.0s, AutomataDifference: 12.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.7s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 970 SdHoareTripleChecker+Valid, 8.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 970 mSDsluCounter, 1585 SdHoareTripleChecker+Invalid, 7.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1682 mSDsCounter, 234 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5099 IncrementalHoareTripleChecker+Invalid, 5333 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 234 mSolverCounterUnsat, 556 mSDtfsCounter, 5099 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 62 SyntacticMatches, 15 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20127occurred in iteration=10, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 23976 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 305 NumberOfCodeBlocks, 305 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 328 ConstructedInterpolants, 0 QuantifiedInterpolants, 4119 SizeOfPredicates, 4 NumberOfNonLiveVariables, 88 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 8/14 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown