/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 14:53:20,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 14:53:20,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 14:53:20,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 14:53:20,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 14:53:20,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 14:53:20,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 14:53:20,698 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2022-01-18 14:53:20,715 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 14:53:20,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 14:53:20,715 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 14:53:20,716 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 14:53:20,716 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 14:53:20,716 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 14:53:20,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 14:53:20,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 14:53:20,717 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 14:53:20,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 14:53:20,718 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 14:53:20,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 14:53:20,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 14:53:20,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 14:53:20,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 14:53:20,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 14:53:20,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 14:53:20,719 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 14:53:20,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 14:53:20,719 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 14:53:20,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 14:53:20,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 14:53:20,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 14:53:20,720 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 14:53:20,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 14:53:20,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 14:53:20,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 14:53:20,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 14:53:20,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 14:53:20,721 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 14:53:20,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 14:53:20,722 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 14:53:20,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 14:53:20,722 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 14:53:20,722 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 14:53:20,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 14:53:20,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 14:53:20,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 14:53:20,923 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-18 14:53:20,924 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-18 14:53:20,925 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl [2022-01-18 14:53:20,925 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl' [2022-01-18 14:53:20,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 14:53:20,947 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-18 14:53:20,948 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 14:53:20,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 14:53:20,948 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 14:53:20,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:53:20" (1/1) ... [2022-01-18 14:53:20,967 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:53:20" (1/1) ... [2022-01-18 14:53:20,973 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-18 14:53:20,974 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 14:53:20,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 14:53:20,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 14:53:20,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 14:53:20,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:53:20" (1/1) ... [2022-01-18 14:53:20,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:53:20" (1/1) ... [2022-01-18 14:53:20,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:53:20" (1/1) ... [2022-01-18 14:53:20,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:53:20" (1/1) ... [2022-01-18 14:53:20,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:53:20" (1/1) ... [2022-01-18 14:53:20,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:53:20" (1/1) ... [2022-01-18 14:53:20,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:53:20" (1/1) ... [2022-01-18 14:53:20,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 14:53:20,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 14:53:20,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 14:53:20,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 14:53:20,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:53:20" (1/1) ... [2022-01-18 14:53:20,998 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 14:53:21,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 14:53:21,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 14:53:21,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 14:53:21,062 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-01-18 14:53:21,063 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 14:53:21,063 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 14:53:21,063 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-01-18 14:53:21,063 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 14:53:21,063 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 14:53:21,063 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-01-18 14:53:21,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 14:53:21,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 14:53:21,064 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-01-18 14:53:21,064 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 14:53:21,064 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 14:53:21,064 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-01-18 14:53:21,064 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-18 14:53:21,064 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-18 14:53:21,065 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 14:53:21,105 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 14:53:21,106 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 14:53:21,272 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 14:53:21,292 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 14:53:21,293 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 14:53:21,294 INFO L202 PluginConnector]: Adding new model exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 02:53:21 BoogieIcfgContainer [2022-01-18 14:53:21,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 14:53:21,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 14:53:21,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 14:53:21,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 14:53:21,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 02:53:20" (1/2) ... [2022-01-18 14:53:21,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42140a3a and model type exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 02:53:21, skipping insertion in model container [2022-01-18 14:53:21,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 02:53:21" (2/2) ... [2022-01-18 14:53:21,304 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x9.wvr.bpl [2022-01-18 14:53:21,308 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 14:53:21,308 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 14:53:21,308 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 14:53:21,308 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 14:53:21,384 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-18 14:53:21,437 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 14:53:21,443 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 14:53:21,445 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 14:53:21,470 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 57 transitions, 146 flow [2022-01-18 14:53:22,070 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) [2022-01-18 14:53:22,121 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) [2022-01-18 14:53:22,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-18 14:53:22,195 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:53:22,195 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 14:53:22,196 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:53:22,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:53:22,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1817176082, now seen corresponding path program 1 times [2022-01-18 14:53:22,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:53:22,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263321839] [2022-01-18 14:53:22,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:53:22,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:53:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:53:22,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:53:22,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:53:22,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263321839] [2022-01-18 14:53:22,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263321839] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:53:22,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:53:22,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 14:53:22,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952920952] [2022-01-18 14:53:22,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:53:22,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 14:53:22,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:53:22,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 14:53:22,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 14:53:22,457 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) [2022-01-18 14:53:22,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:53:22,849 INFO L93 Difference]: Finished difference Result 12650 states and 50294 transitions. [2022-01-18 14:53:22,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 14:53:22,852 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 [2022-01-18 14:53:22,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:53:22,987 INFO L225 Difference]: With dead ends: 12650 [2022-01-18 14:53:22,988 INFO L226 Difference]: Without dead ends: 12619 [2022-01-18 14:53:22,990 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 [2022-01-18 14:53:22,995 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 [2022-01-18 14:53:22,996 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] [2022-01-18 14:53:23,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12619 states. [2022-01-18 14:53:23,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12619 to 12354. [2022-01-18 14:53:23,830 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) [2022-01-18 14:53:23,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12354 states to 12354 states and 49139 transitions. [2022-01-18 14:53:23,901 INFO L78 Accepts]: Start accepts. Automaton has 12354 states and 49139 transitions. Word has length 19 [2022-01-18 14:53:23,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:53:23,902 INFO L470 AbstractCegarLoop]: Abstraction has 12354 states and 49139 transitions. [2022-01-18 14:53:23,903 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) [2022-01-18 14:53:23,903 INFO L276 IsEmpty]: Start isEmpty. Operand 12354 states and 49139 transitions. [2022-01-18 14:53:23,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-18 14:53:23,948 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:53:23,948 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] [2022-01-18 14:53:23,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 14:53:23,949 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:53:23,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:53:23,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1924913497, now seen corresponding path program 1 times [2022-01-18 14:53:23,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:53:23,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654357241] [2022-01-18 14:53:23,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:53:23,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:53:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:53:24,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:53:24,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:53:24,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654357241] [2022-01-18 14:53:24,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654357241] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:53:24,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:53:24,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 14:53:24,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076497984] [2022-01-18 14:53:24,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:53:24,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 14:53:24,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:53:24,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 14:53:24,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 14:53:24,113 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) [2022-01-18 14:53:24,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:53:24,397 INFO L93 Difference]: Finished difference Result 19078 states and 74517 transitions. [2022-01-18 14:53:24,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 14:53:24,398 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 [2022-01-18 14:53:24,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:53:24,609 INFO L225 Difference]: With dead ends: 19078 [2022-01-18 14:53:24,609 INFO L226 Difference]: Without dead ends: 19078 [2022-01-18 14:53:24,610 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 [2022-01-18 14:53:24,611 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 [2022-01-18 14:53:24,612 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] [2022-01-18 14:53:24,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19078 states. [2022-01-18 14:53:25,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19078 to 13566. [2022-01-18 14:53:25,243 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) [2022-01-18 14:53:25,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13566 states to 13566 states and 54209 transitions. [2022-01-18 14:53:25,427 INFO L78 Accepts]: Start accepts. Automaton has 13566 states and 54209 transitions. Word has length 27 [2022-01-18 14:53:25,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:53:25,428 INFO L470 AbstractCegarLoop]: Abstraction has 13566 states and 54209 transitions. [2022-01-18 14:53:25,428 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) [2022-01-18 14:53:25,428 INFO L276 IsEmpty]: Start isEmpty. Operand 13566 states and 54209 transitions. [2022-01-18 14:53:25,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-18 14:53:25,513 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:53:25,513 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] [2022-01-18 14:53:25,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 14:53:25,513 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:53:25,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:53:25,514 INFO L85 PathProgramCache]: Analyzing trace with hash -961019923, now seen corresponding path program 1 times [2022-01-18 14:53:25,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:53:25,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682908017] [2022-01-18 14:53:25,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:53:25,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:53:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:53:25,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:53:25,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:53:25,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682908017] [2022-01-18 14:53:25,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682908017] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:53:25,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:53:25,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 14:53:25,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344182580] [2022-01-18 14:53:25,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:53:25,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 14:53:25,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:53:25,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 14:53:25,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 14:53:25,552 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) [2022-01-18 14:53:25,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:53:25,936 INFO L93 Difference]: Finished difference Result 19630 states and 77107 transitions. [2022-01-18 14:53:25,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 14:53:25,937 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 [2022-01-18 14:53:25,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:53:26,050 INFO L225 Difference]: With dead ends: 19630 [2022-01-18 14:53:26,051 INFO L226 Difference]: Without dead ends: 19630 [2022-01-18 14:53:26,051 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 [2022-01-18 14:53:26,052 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 83 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-01-18 14:53:26,053 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] [2022-01-18 14:53:26,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19630 states. [2022-01-18 14:53:26,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19630 to 15003. [2022-01-18 14:53:26,672 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) [2022-01-18 14:53:26,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15003 states to 15003 states and 60337 transitions. [2022-01-18 14:53:26,749 INFO L78 Accepts]: Start accepts. Automaton has 15003 states and 60337 transitions. Word has length 27 [2022-01-18 14:53:26,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:53:26,749 INFO L470 AbstractCegarLoop]: Abstraction has 15003 states and 60337 transitions. [2022-01-18 14:53:26,749 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) [2022-01-18 14:53:26,749 INFO L276 IsEmpty]: Start isEmpty. Operand 15003 states and 60337 transitions. [2022-01-18 14:53:26,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-18 14:53:26,808 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:53:26,808 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] [2022-01-18 14:53:26,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 14:53:26,808 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:53:26,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:53:26,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1657381619, now seen corresponding path program 1 times [2022-01-18 14:53:26,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:53:26,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111937607] [2022-01-18 14:53:26,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:53:26,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:53:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:53:26,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:53:26,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:53:26,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111937607] [2022-01-18 14:53:26,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111937607] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:53:26,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:53:26,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 14:53:26,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742491154] [2022-01-18 14:53:26,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:53:26,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 14:53:26,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:53:26,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 14:53:26,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 14:53:26,840 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) [2022-01-18 14:53:27,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:53:27,296 INFO L93 Difference]: Finished difference Result 17397 states and 69147 transitions. [2022-01-18 14:53:27,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 14:53:27,297 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 [2022-01-18 14:53:27,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:53:27,374 INFO L225 Difference]: With dead ends: 17397 [2022-01-18 14:53:27,374 INFO L226 Difference]: Without dead ends: 17389 [2022-01-18 14:53:27,375 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 [2022-01-18 14:53:27,376 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 [2022-01-18 14:53:27,376 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] [2022-01-18 14:53:27,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17389 states. [2022-01-18 14:53:27,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17389 to 15239. [2022-01-18 14:53:28,020 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) [2022-01-18 14:53:28,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15239 states to 15239 states and 61135 transitions. [2022-01-18 14:53:28,095 INFO L78 Accepts]: Start accepts. Automaton has 15239 states and 61135 transitions. Word has length 27 [2022-01-18 14:53:28,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:53:28,095 INFO L470 AbstractCegarLoop]: Abstraction has 15239 states and 61135 transitions. [2022-01-18 14:53:28,095 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) [2022-01-18 14:53:28,096 INFO L276 IsEmpty]: Start isEmpty. Operand 15239 states and 61135 transitions. [2022-01-18 14:53:28,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-18 14:53:28,143 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:53:28,144 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] [2022-01-18 14:53:28,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 14:53:28,144 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:53:28,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:53:28,144 INFO L85 PathProgramCache]: Analyzing trace with hash 531191895, now seen corresponding path program 1 times [2022-01-18 14:53:28,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:53:28,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212246324] [2022-01-18 14:53:28,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:53:28,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:53:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:53:28,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:53:28,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:53:28,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212246324] [2022-01-18 14:53:28,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212246324] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:53:28,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:53:28,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 14:53:28,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472928669] [2022-01-18 14:53:28,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:53:28,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 14:53:28,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:53:28,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 14:53:28,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 14:53:28,175 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) [2022-01-18 14:53:28,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:53:28,367 INFO L93 Difference]: Finished difference Result 17433 states and 69120 transitions. [2022-01-18 14:53:28,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 14:53:28,368 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 [2022-01-18 14:53:28,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:53:28,441 INFO L225 Difference]: With dead ends: 17433 [2022-01-18 14:53:28,441 INFO L226 Difference]: Without dead ends: 17415 [2022-01-18 14:53:28,442 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 [2022-01-18 14:53:28,442 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 [2022-01-18 14:53:28,443 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] [2022-01-18 14:53:28,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17415 states. [2022-01-18 14:53:28,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17415 to 15481. [2022-01-18 14:53:29,020 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) [2022-01-18 14:53:29,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15481 states to 15481 states and 61955 transitions. [2022-01-18 14:53:29,084 INFO L78 Accepts]: Start accepts. Automaton has 15481 states and 61955 transitions. Word has length 27 [2022-01-18 14:53:29,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:53:29,085 INFO L470 AbstractCegarLoop]: Abstraction has 15481 states and 61955 transitions. [2022-01-18 14:53:29,085 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) [2022-01-18 14:53:29,085 INFO L276 IsEmpty]: Start isEmpty. Operand 15481 states and 61955 transitions. [2022-01-18 14:53:29,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-18 14:53:29,274 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:53:29,274 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] [2022-01-18 14:53:29,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 14:53:29,274 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:53:29,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:53:29,301 INFO L85 PathProgramCache]: Analyzing trace with hash -253055853, now seen corresponding path program 2 times [2022-01-18 14:53:29,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:53:29,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541185399] [2022-01-18 14:53:29,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:53:29,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:53:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:53:29,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:53:29,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:53:29,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541185399] [2022-01-18 14:53:29,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541185399] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:53:29,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:53:29,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 14:53:29,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116992597] [2022-01-18 14:53:29,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:53:29,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 14:53:29,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:53:29,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 14:53:29,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 14:53:29,351 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) [2022-01-18 14:53:29,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:53:29,562 INFO L93 Difference]: Finished difference Result 18408 states and 73042 transitions. [2022-01-18 14:53:29,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 14:53:29,563 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 [2022-01-18 14:53:29,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:53:29,645 INFO L225 Difference]: With dead ends: 18408 [2022-01-18 14:53:29,645 INFO L226 Difference]: Without dead ends: 18408 [2022-01-18 14:53:29,646 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 [2022-01-18 14:53:29,647 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 [2022-01-18 14:53:29,647 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] [2022-01-18 14:53:29,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18408 states. [2022-01-18 14:53:30,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18408 to 16911. [2022-01-18 14:53:30,124 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) [2022-01-18 14:53:30,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16911 states to 16911 states and 67604 transitions. [2022-01-18 14:53:30,194 INFO L78 Accepts]: Start accepts. Automaton has 16911 states and 67604 transitions. Word has length 27 [2022-01-18 14:53:30,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:53:30,194 INFO L470 AbstractCegarLoop]: Abstraction has 16911 states and 67604 transitions. [2022-01-18 14:53:30,195 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) [2022-01-18 14:53:30,195 INFO L276 IsEmpty]: Start isEmpty. Operand 16911 states and 67604 transitions. [2022-01-18 14:53:30,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-18 14:53:30,229 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:53:30,229 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] [2022-01-18 14:53:30,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 14:53:30,230 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:53:30,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:53:30,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1382652649, now seen corresponding path program 2 times [2022-01-18 14:53:30,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:53:30,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674247884] [2022-01-18 14:53:30,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:53:30,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:53:30,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:53:30,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:53:30,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:53:30,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674247884] [2022-01-18 14:53:30,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674247884] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:53:30,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:53:30,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 14:53:30,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078789907] [2022-01-18 14:53:30,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:53:30,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 14:53:30,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:53:30,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 14:53:30,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 14:53:30,279 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) [2022-01-18 14:53:30,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:53:30,653 INFO L93 Difference]: Finished difference Result 18407 states and 72770 transitions. [2022-01-18 14:53:30,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 14:53:30,654 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 [2022-01-18 14:53:30,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:53:30,715 INFO L225 Difference]: With dead ends: 18407 [2022-01-18 14:53:30,715 INFO L226 Difference]: Without dead ends: 18376 [2022-01-18 14:53:30,715 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 [2022-01-18 14:53:30,716 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 [2022-01-18 14:53:30,716 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] [2022-01-18 14:53:30,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18376 states. [2022-01-18 14:53:31,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18376 to 17154. [2022-01-18 14:53:31,097 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) [2022-01-18 14:53:31,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17154 states to 17154 states and 68414 transitions. [2022-01-18 14:53:31,150 INFO L78 Accepts]: Start accepts. Automaton has 17154 states and 68414 transitions. Word has length 27 [2022-01-18 14:53:31,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:53:31,151 INFO L470 AbstractCegarLoop]: Abstraction has 17154 states and 68414 transitions. [2022-01-18 14:53:31,151 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) [2022-01-18 14:53:31,151 INFO L276 IsEmpty]: Start isEmpty. Operand 17154 states and 68414 transitions. [2022-01-18 14:53:31,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-18 14:53:31,186 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:53:31,186 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] [2022-01-18 14:53:31,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 14:53:31,187 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:53:31,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:53:31,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1664214835, now seen corresponding path program 2 times [2022-01-18 14:53:31,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:53:31,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553241542] [2022-01-18 14:53:31,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:53:31,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:53:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:53:31,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:53:31,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:53:31,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553241542] [2022-01-18 14:53:31,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553241542] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:53:31,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:53:31,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 14:53:31,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354101960] [2022-01-18 14:53:31,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:53:31,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 14:53:31,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:53:31,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 14:53:31,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 14:53:31,230 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) [2022-01-18 14:53:31,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:53:31,581 INFO L93 Difference]: Finished difference Result 20764 states and 82157 transitions. [2022-01-18 14:53:31,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 14:53:31,581 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 [2022-01-18 14:53:31,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:53:31,647 INFO L225 Difference]: With dead ends: 20764 [2022-01-18 14:53:31,647 INFO L226 Difference]: Without dead ends: 20764 [2022-01-18 14:53:31,647 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 [2022-01-18 14:53:31,648 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 [2022-01-18 14:53:31,648 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] [2022-01-18 14:53:31,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20764 states. [2022-01-18 14:53:32,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20764 to 18641. [2022-01-18 14:53:32,030 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) [2022-01-18 14:53:32,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18641 states to 18641 states and 74382 transitions. [2022-01-18 14:53:32,090 INFO L78 Accepts]: Start accepts. Automaton has 18641 states and 74382 transitions. Word has length 27 [2022-01-18 14:53:32,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:53:32,090 INFO L470 AbstractCegarLoop]: Abstraction has 18641 states and 74382 transitions. [2022-01-18 14:53:32,091 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) [2022-01-18 14:53:32,091 INFO L276 IsEmpty]: Start isEmpty. Operand 18641 states and 74382 transitions. [2022-01-18 14:53:32,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-18 14:53:32,131 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:53:32,131 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] [2022-01-18 14:53:32,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 14:53:32,131 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:53:32,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:53:32,132 INFO L85 PathProgramCache]: Analyzing trace with hash -2133714845, now seen corresponding path program 2 times [2022-01-18 14:53:32,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:53:32,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060813936] [2022-01-18 14:53:32,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:53:32,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:53:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:53:32,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:53:32,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:53:32,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060813936] [2022-01-18 14:53:32,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060813936] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 14:53:32,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 14:53:32,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 14:53:32,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106483650] [2022-01-18 14:53:32,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 14:53:32,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 14:53:32,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:53:32,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 14:53:32,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 14:53:32,155 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) [2022-01-18 14:53:32,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:53:32,512 INFO L93 Difference]: Finished difference Result 20639 states and 81242 transitions. [2022-01-18 14:53:32,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 14:53:32,512 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 [2022-01-18 14:53:32,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:53:32,585 INFO L225 Difference]: With dead ends: 20639 [2022-01-18 14:53:32,585 INFO L226 Difference]: Without dead ends: 20611 [2022-01-18 14:53:32,585 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 [2022-01-18 14:53:32,586 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 [2022-01-18 14:53:32,586 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] [2022-01-18 14:53:32,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20611 states. [2022-01-18 14:53:32,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20611 to 19021. [2022-01-18 14:53:32,945 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) [2022-01-18 14:53:33,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19021 states to 19021 states and 75747 transitions. [2022-01-18 14:53:33,007 INFO L78 Accepts]: Start accepts. Automaton has 19021 states and 75747 transitions. Word has length 27 [2022-01-18 14:53:33,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:53:33,007 INFO L470 AbstractCegarLoop]: Abstraction has 19021 states and 75747 transitions. [2022-01-18 14:53:33,008 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) [2022-01-18 14:53:33,008 INFO L276 IsEmpty]: Start isEmpty. Operand 19021 states and 75747 transitions. [2022-01-18 14:53:33,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-18 14:53:33,045 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:53:33,046 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] [2022-01-18 14:53:33,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 14:53:33,046 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:53:33,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:53:33,046 INFO L85 PathProgramCache]: Analyzing trace with hash 784676502, now seen corresponding path program 1 times [2022-01-18 14:53:33,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:53:33,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001209657] [2022-01-18 14:53:33,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:53:33,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:53:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:53:33,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:53:33,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:53:33,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001209657] [2022-01-18 14:53:33,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001209657] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 14:53:33,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103918317] [2022-01-18 14:53:33,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:53:33,259 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 14:53:33,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 14:53:33,275 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) [2022-01-18 14:53:33,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 14:53:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:53:33,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 33 conjunts are in the unsatisfiable core [2022-01-18 14:53:33,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 14:53:36,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:53:36,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 14:53:36,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 14:53:36,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103918317] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 14:53:36,803 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 14:53:36,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 16, 8] total 17 [2022-01-18 14:53:36,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885899764] [2022-01-18 14:53:36,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 14:53:36,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 14:53:36,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 14:53:36,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 14:53:36,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-01-18 14:53:36,805 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) [2022-01-18 14:53:44,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 14:53:44,270 INFO L93 Difference]: Finished difference Result 23319 states and 91627 transitions. [2022-01-18 14:53:44,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 14:53:44,271 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 [2022-01-18 14:53:44,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 14:53:44,343 INFO L225 Difference]: With dead ends: 23319 [2022-01-18 14:53:44,343 INFO L226 Difference]: Without dead ends: 23183 [2022-01-18 14:53:44,343 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 [2022-01-18 14:53:44,344 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 245 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 4333 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s 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, 7.3s IncrementalHoareTripleChecker+Time [2022-01-18 14:53:44,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 615 Invalid, 4539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 4333 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-01-18 14:53:44,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23183 states. [2022-01-18 14:53:44,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23183 to 20127. [2022-01-18 14:53:44,741 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) [2022-01-18 14:53:44,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20127 states to 20127 states and 79896 transitions. [2022-01-18 14:53:44,806 INFO L78 Accepts]: Start accepts. Automaton has 20127 states and 79896 transitions. Word has length 35 [2022-01-18 14:53:44,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 14:53:44,806 INFO L470 AbstractCegarLoop]: Abstraction has 20127 states and 79896 transitions. [2022-01-18 14:53:44,806 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) [2022-01-18 14:53:44,806 INFO L276 IsEmpty]: Start isEmpty. Operand 20127 states and 79896 transitions. [2022-01-18 14:53:44,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-18 14:53:44,847 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 14:53:44,847 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] [2022-01-18 14:53:44,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 14:53:45,048 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 [2022-01-18 14:53:45,048 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 14:53:45,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 14:53:45,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1146828290, now seen corresponding path program 2 times [2022-01-18 14:53:45,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 14:53:45,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485867487] [2022-01-18 14:53:45,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 14:53:45,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 14:53:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 14:53:45,229 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 14:53:45,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 14:53:45,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485867487] [2022-01-18 14:53:45,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485867487] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 14:53:45,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461457636] [2022-01-18 14:53:45,230 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 14:53:45,230 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 14:53:45,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 14:53:45,232 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) [2022-01-18 14:53:45,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 14:53:45,272 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 14:53:45,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 14:53:45,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 33 conjunts are in the unsatisfiable core [2022-01-18 14:53:45,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-01-18 15:07:52,311 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 15:07:52,337 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 [2022-01-18 15:07:53,320 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 [2022-01-18 15:07:53,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-18 15:07:53,917 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-01-18 15:07:53,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 15:07:53,918 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. [2022-01-18 15:07:53,919 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-01-18 15:07:53,919 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-01-18 15:07:53,920 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-01-18 15:07:53,920 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-01-18 15:07:53,922 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 1] [2022-01-18 15:07:53,924 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 15:07:53,924 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 15:07:53,927 INFO L202 PluginConnector]: Adding new model exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 03:07:53 BasicIcfg [2022-01-18 15:07:53,927 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 15:07:53,928 INFO L158 Benchmark]: Toolchain (without parser) took 872980.92ms. Allocated memory was 367.0MB in the beginning and 11.3GB in the end (delta: 10.9GB). Free memory was 326.2MB in the beginning and 6.7GB in the end (delta: -6.3GB). Peak memory consumption was 7.8GB. Max. memory is 16.0GB. [2022-01-18 15:07:53,928 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 367.0MB. Free memory is still 327.4MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 15:07:53,928 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.04ms. Allocated memory is still 367.0MB. Free memory was 326.2MB in the beginning and 324.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 15:07:53,928 INFO L158 Benchmark]: Boogie Preprocessor took 15.29ms. Allocated memory is still 367.0MB. Free memory was 324.7MB in the beginning and 323.6MB in the end (delta: 1.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2022-01-18 15:07:53,929 INFO L158 Benchmark]: RCFGBuilder took 303.83ms. Allocated memory is still 367.0MB. Free memory was 323.6MB in the beginning and 313.7MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. [2022-01-18 15:07:53,929 INFO L158 Benchmark]: TraceAbstraction took 872631.79ms. Allocated memory was 367.0MB in the beginning and 11.3GB in the end (delta: 10.9GB). Free memory was 313.2MB in the beginning and 6.7GB in the end (delta: -6.3GB). Peak memory consumption was 7.8GB. Max. memory is 16.0GB. [2022-01-18 15:07:53,930 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.14ms. Allocated memory is still 367.0MB. Free memory is still 327.4MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 26.04ms. Allocated memory is still 367.0MB. Free memory was 326.2MB in the beginning and 324.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 15.29ms. Allocated memory is still 367.0MB. Free memory was 324.7MB in the beginning and 323.6MB in the end (delta: 1.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 303.83ms. Allocated memory is still 367.0MB. Free memory was 323.6MB in the beginning and 313.7MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. * TraceAbstraction took 872631.79ms. Allocated memory was 367.0MB in the beginning and 11.3GB in the end (delta: 10.9GB). Free memory was 313.2MB in the beginning and 6.7GB in the end (delta: -6.3GB). Peak memory consumption was 7.8GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 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: 872.5s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.7s, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.6s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 970 SdHoareTripleChecker+Valid, 8.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 970 mSDsluCounter, 1585 SdHoareTripleChecker+Invalid, 7.3s 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: 6.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 23976 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.1s 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