java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf -i ../../../trunk/examples/svcomp/memsafety/lockfree-3.1_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 16:58:00,099 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 16:58:00,101 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 16:58:00,114 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 16:58:00,115 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 16:58:00,115 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 16:58:00,116 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 16:58:00,118 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 16:58:00,120 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 16:58:00,120 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 16:58:00,121 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 16:58:00,121 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 16:58:00,122 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 16:58:00,124 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 16:58:00,124 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 16:58:00,127 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 16:58:00,129 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 16:58:00,130 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 16:58:00,131 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 16:58:00,132 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 16:58:00,135 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 16:58:00,135 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 16:58:00,135 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 16:58:00,136 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 16:58:00,137 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 16:58:00,138 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 16:58:00,138 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 16:58:00,139 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 16:58:00,139 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 16:58:00,139 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 16:58:00,139 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 16:58:00,140 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf [2018-01-24 16:58:00,149 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 16:58:00,149 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 16:58:00,150 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 16:58:00,150 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 16:58:00,150 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 16:58:00,150 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-24 16:58:00,151 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 16:58:00,151 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 16:58:00,151 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 16:58:00,152 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 16:58:00,152 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 16:58:00,152 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 16:58:00,152 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 16:58:00,152 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 16:58:00,153 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 16:58:00,153 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 16:58:00,153 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 16:58:00,153 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 16:58:00,153 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 16:58:00,154 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 16:58:00,154 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 16:58:00,154 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 16:58:00,154 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 16:58:00,154 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 16:58:00,155 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:58:00,155 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 16:58:00,155 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 16:58:00,155 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 16:58:00,155 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 16:58:00,156 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 16:58:00,156 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 16:58:00,156 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 16:58:00,156 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 16:58:00,156 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 16:58:00,157 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 16:58:00,157 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 16:58:00,191 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 16:58:00,202 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 16:58:00,206 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 16:58:00,208 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 16:58:00,208 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 16:58:00,209 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/lockfree-3.1_false-valid-memtrack.i [2018-01-24 16:58:00,387 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 16:58:00,394 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 16:58:00,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 16:58:00,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 16:58:00,402 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 16:58:00,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:58:00" (1/1) ... [2018-01-24 16:58:00,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4430c394 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:58:00, skipping insertion in model container [2018-01-24 16:58:00,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:58:00" (1/1) ... [2018-01-24 16:58:00,423 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:58:00,461 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:58:00,586 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:58:00,605 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:58:00,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:58:00 WrapperNode [2018-01-24 16:58:00,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 16:58:00,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 16:58:00,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 16:58:00,614 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 16:58:00,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:58:00" (1/1) ... [2018-01-24 16:58:00,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:58:00" (1/1) ... [2018-01-24 16:58:00,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:58:00" (1/1) ... [2018-01-24 16:58:00,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:58:00" (1/1) ... [2018-01-24 16:58:00,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:58:00" (1/1) ... [2018-01-24 16:58:00,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:58:00" (1/1) ... [2018-01-24 16:58:00,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:58:00" (1/1) ... [2018-01-24 16:58:00,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 16:58:00,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 16:58:00,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 16:58:00,652 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 16:58:00,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:58:00" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:58:00,707 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 16:58:00,707 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 16:58:00,708 INFO L136 BoogieDeclarations]: Found implementation of procedure push [2018-01-24 16:58:00,708 INFO L136 BoogieDeclarations]: Found implementation of procedure pop [2018-01-24 16:58:00,708 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 16:58:00,708 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 16:58:00,708 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 16:58:00,708 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 16:58:00,709 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 16:58:00,709 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 16:58:00,709 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 16:58:00,709 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 16:58:00,709 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 16:58:00,709 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 16:58:00,710 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 16:58:00,710 INFO L128 BoogieDeclarations]: Found specification of procedure push [2018-01-24 16:58:00,710 INFO L128 BoogieDeclarations]: Found specification of procedure pop [2018-01-24 16:58:00,710 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 16:58:00,710 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 16:58:00,710 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 16:58:01,063 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 16:58:01,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:58:01 BoogieIcfgContainer [2018-01-24 16:58:01,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 16:58:01,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 16:58:01,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 16:58:01,067 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 16:58:01,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 04:58:00" (1/3) ... [2018-01-24 16:58:01,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35da08a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 04:58:01, skipping insertion in model container [2018-01-24 16:58:01,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:58:00" (2/3) ... [2018-01-24 16:58:01,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35da08a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 04:58:01, skipping insertion in model container [2018-01-24 16:58:01,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:58:01" (3/3) ... [2018-01-24 16:58:01,070 INFO L105 eAbstractionObserver]: Analyzing ICFG lockfree-3.1_false-valid-memtrack.i [2018-01-24 16:58:01,077 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 16:58:01,084 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2018-01-24 16:58:01,122 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 16:58:01,122 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 16:58:01,122 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 16:58:01,122 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 16:58:01,122 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 16:58:01,122 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 16:58:01,123 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 16:58:01,123 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 16:58:01,123 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 16:58:01,139 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-01-24 16:58:01,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-01-24 16:58:01,146 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:58:01,147 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:58:01,147 INFO L371 AbstractCegarLoop]: === Iteration 1 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 16:58:01,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1799126466, now seen corresponding path program 1 times [2018-01-24 16:58:01,152 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:58:01,194 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:01,194 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:01,194 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:01,194 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:58:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:01,261 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:58:01,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:01,310 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:58:01,310 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 16:58:01,310 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:58:01,312 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-24 16:58:01,323 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-24 16:58:01,323 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-24 16:58:01,325 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2018-01-24 16:58:01,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:58:01,440 INFO L93 Difference]: Finished difference Result 92 states and 112 transitions. [2018-01-24 16:58:01,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-24 16:58:01,441 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-01-24 16:58:01,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:58:01,456 INFO L225 Difference]: With dead ends: 92 [2018-01-24 16:58:01,456 INFO L226 Difference]: Without dead ends: 73 [2018-01-24 16:58:01,460 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-24 16:58:01,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-01-24 16:58:01,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-01-24 16:58:01,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-01-24 16:58:01,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 90 transitions. [2018-01-24 16:58:01,502 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 90 transitions. Word has length 9 [2018-01-24 16:58:01,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:58:01,502 INFO L432 AbstractCegarLoop]: Abstraction has 73 states and 90 transitions. [2018-01-24 16:58:01,502 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-24 16:58:01,502 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 90 transitions. [2018-01-24 16:58:01,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-01-24 16:58:01,503 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:58:01,503 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:58:01,503 INFO L371 AbstractCegarLoop]: === Iteration 2 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 16:58:01,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1199640283, now seen corresponding path program 1 times [2018-01-24 16:58:01,503 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:58:01,504 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:01,505 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:01,505 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:01,505 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:58:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:01,529 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:58:01,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:01,569 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:58:01,570 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 16:58:01,570 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:58:01,571 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 16:58:01,572 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 16:58:01,572 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 16:58:01,572 INFO L87 Difference]: Start difference. First operand 73 states and 90 transitions. Second operand 3 states. [2018-01-24 16:58:01,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:58:01,596 INFO L93 Difference]: Finished difference Result 87 states and 105 transitions. [2018-01-24 16:58:01,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 16:58:01,597 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-01-24 16:58:01,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:58:01,599 INFO L225 Difference]: With dead ends: 87 [2018-01-24 16:58:01,599 INFO L226 Difference]: Without dead ends: 74 [2018-01-24 16:58:01,600 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 16:58:01,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-01-24 16:58:01,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-01-24 16:58:01,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-01-24 16:58:01,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 91 transitions. [2018-01-24 16:58:01,607 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 91 transitions. Word has length 12 [2018-01-24 16:58:01,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:58:01,607 INFO L432 AbstractCegarLoop]: Abstraction has 74 states and 91 transitions. [2018-01-24 16:58:01,607 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 16:58:01,607 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 91 transitions. [2018-01-24 16:58:01,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-01-24 16:58:01,608 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:58:01,608 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:58:01,608 INFO L371 AbstractCegarLoop]: === Iteration 3 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 16:58:01,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1201487325, now seen corresponding path program 1 times [2018-01-24 16:58:01,609 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:58:01,612 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:01,612 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:01,612 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:01,612 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:58:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:01,640 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:58:01,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:01,715 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:58:01,715 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 16:58:01,716 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:58:01,716 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 16:58:01,716 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 16:58:01,716 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 16:58:01,716 INFO L87 Difference]: Start difference. First operand 74 states and 91 transitions. Second operand 3 states. [2018-01-24 16:58:01,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:58:01,772 INFO L93 Difference]: Finished difference Result 145 states and 181 transitions. [2018-01-24 16:58:01,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 16:58:01,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-01-24 16:58:01,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:58:01,775 INFO L225 Difference]: With dead ends: 145 [2018-01-24 16:58:01,775 INFO L226 Difference]: Without dead ends: 132 [2018-01-24 16:58:01,776 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 16:58:01,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-01-24 16:58:01,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 114. [2018-01-24 16:58:01,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-01-24 16:58:01,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 159 transitions. [2018-01-24 16:58:01,794 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 159 transitions. Word has length 12 [2018-01-24 16:58:01,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:58:01,794 INFO L432 AbstractCegarLoop]: Abstraction has 114 states and 159 transitions. [2018-01-24 16:58:01,795 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 16:58:01,795 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 159 transitions. [2018-01-24 16:58:01,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-24 16:58:01,795 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:58:01,796 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:58:01,796 INFO L371 AbstractCegarLoop]: === Iteration 4 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 16:58:01,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1408600152, now seen corresponding path program 1 times [2018-01-24 16:58:01,796 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:58:01,797 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:01,797 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:01,797 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:01,798 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:58:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:01,816 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:58:01,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:01,849 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:58:01,850 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 16:58:01,850 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:58:01,850 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 16:58:01,850 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 16:58:01,851 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 16:58:01,851 INFO L87 Difference]: Start difference. First operand 114 states and 159 transitions. Second operand 3 states. [2018-01-24 16:58:01,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:58:01,952 INFO L93 Difference]: Finished difference Result 148 states and 206 transitions. [2018-01-24 16:58:01,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 16:58:01,952 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-01-24 16:58:01,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:58:01,955 INFO L225 Difference]: With dead ends: 148 [2018-01-24 16:58:01,955 INFO L226 Difference]: Without dead ends: 143 [2018-01-24 16:58:01,955 INFO L525 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 [2018-01-24 16:58:01,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-01-24 16:58:01,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 135. [2018-01-24 16:58:01,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-01-24 16:58:01,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 192 transitions. [2018-01-24 16:58:01,974 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 192 transitions. Word has length 13 [2018-01-24 16:58:01,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:58:01,975 INFO L432 AbstractCegarLoop]: Abstraction has 135 states and 192 transitions. [2018-01-24 16:58:01,975 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 16:58:01,975 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 192 transitions. [2018-01-24 16:58:01,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-24 16:58:01,976 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:58:01,976 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:58:01,976 INFO L371 AbstractCegarLoop]: === Iteration 5 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 16:58:01,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1628464921, now seen corresponding path program 1 times [2018-01-24 16:58:01,977 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:58:01,978 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:01,978 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:01,978 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:01,978 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:58:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:01,995 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:58:02,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:02,049 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:58:02,049 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 16:58:02,049 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:58:02,050 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 16:58:02,050 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 16:58:02,050 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 16:58:02,050 INFO L87 Difference]: Start difference. First operand 135 states and 192 transitions. Second operand 5 states. [2018-01-24 16:58:02,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:58:02,188 INFO L93 Difference]: Finished difference Result 385 states and 558 transitions. [2018-01-24 16:58:02,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 16:58:02,189 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-01-24 16:58:02,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:58:02,191 INFO L225 Difference]: With dead ends: 385 [2018-01-24 16:58:02,191 INFO L226 Difference]: Without dead ends: 255 [2018-01-24 16:58:02,192 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-24 16:58:02,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2018-01-24 16:58:02,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 226. [2018-01-24 16:58:02,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2018-01-24 16:58:02,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 338 transitions. [2018-01-24 16:58:02,216 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 338 transitions. Word has length 15 [2018-01-24 16:58:02,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:58:02,216 INFO L432 AbstractCegarLoop]: Abstraction has 226 states and 338 transitions. [2018-01-24 16:58:02,216 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 16:58:02,216 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 338 transitions. [2018-01-24 16:58:02,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-24 16:58:02,217 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:58:02,217 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:58:02,217 INFO L371 AbstractCegarLoop]: === Iteration 6 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 16:58:02,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1057474006, now seen corresponding path program 1 times [2018-01-24 16:58:02,217 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:58:02,218 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:02,218 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:02,218 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:02,219 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:58:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:02,234 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:58:02,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:02,268 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:58:02,268 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 16:58:02,268 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:58:02,269 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 16:58:02,269 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 16:58:02,269 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 16:58:02,269 INFO L87 Difference]: Start difference. First operand 226 states and 338 transitions. Second operand 4 states. [2018-01-24 16:58:02,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:58:02,413 INFO L93 Difference]: Finished difference Result 390 states and 581 transitions. [2018-01-24 16:58:02,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 16:58:02,413 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-24 16:58:02,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:58:02,416 INFO L225 Difference]: With dead ends: 390 [2018-01-24 16:58:02,416 INFO L226 Difference]: Without dead ends: 386 [2018-01-24 16:58:02,417 INFO L525 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 [2018-01-24 16:58:02,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2018-01-24 16:58:02,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 358. [2018-01-24 16:58:02,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2018-01-24 16:58:02,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 548 transitions. [2018-01-24 16:58:02,445 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 548 transitions. Word has length 16 [2018-01-24 16:58:02,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:58:02,445 INFO L432 AbstractCegarLoop]: Abstraction has 358 states and 548 transitions. [2018-01-24 16:58:02,445 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 16:58:02,445 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 548 transitions. [2018-01-24 16:58:02,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-24 16:58:02,446 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:58:02,446 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:58:02,447 INFO L371 AbstractCegarLoop]: === Iteration 7 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 16:58:02,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1057474005, now seen corresponding path program 1 times [2018-01-24 16:58:02,447 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:58:02,448 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:02,448 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:02,448 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:02,448 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:58:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:02,464 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:58:02,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:02,518 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:58:02,519 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 16:58:02,519 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:58:02,519 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 16:58:02,519 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 16:58:02,519 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 16:58:02,519 INFO L87 Difference]: Start difference. First operand 358 states and 548 transitions. Second operand 4 states. [2018-01-24 16:58:02,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:58:02,721 INFO L93 Difference]: Finished difference Result 489 states and 728 transitions. [2018-01-24 16:58:02,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 16:58:02,721 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-24 16:58:02,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:58:02,725 INFO L225 Difference]: With dead ends: 489 [2018-01-24 16:58:02,725 INFO L226 Difference]: Without dead ends: 485 [2018-01-24 16:58:02,726 INFO L525 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 [2018-01-24 16:58:02,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2018-01-24 16:58:02,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 460. [2018-01-24 16:58:02,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2018-01-24 16:58:02,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 696 transitions. [2018-01-24 16:58:02,758 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 696 transitions. Word has length 16 [2018-01-24 16:58:02,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:58:02,759 INFO L432 AbstractCegarLoop]: Abstraction has 460 states and 696 transitions. [2018-01-24 16:58:02,759 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 16:58:02,759 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 696 transitions. [2018-01-24 16:58:02,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-24 16:58:02,760 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:58:02,760 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:58:02,760 INFO L371 AbstractCegarLoop]: === Iteration 8 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 16:58:02,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1708141764, now seen corresponding path program 1 times [2018-01-24 16:58:02,761 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:58:02,762 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:02,762 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:02,762 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:02,762 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:58:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:02,774 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:58:02,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:02,828 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:58:02,828 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 16:58:02,829 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:58:02,829 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 16:58:02,829 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 16:58:02,829 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 16:58:02,829 INFO L87 Difference]: Start difference. First operand 460 states and 696 transitions. Second operand 5 states. [2018-01-24 16:58:02,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:58:02,909 INFO L93 Difference]: Finished difference Result 1316 states and 1982 transitions. [2018-01-24 16:58:02,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 16:58:02,909 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-01-24 16:58:02,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:58:02,914 INFO L225 Difference]: With dead ends: 1316 [2018-01-24 16:58:02,914 INFO L226 Difference]: Without dead ends: 861 [2018-01-24 16:58:02,916 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-24 16:58:02,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2018-01-24 16:58:02,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 828. [2018-01-24 16:58:02,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 828 states. [2018-01-24 16:58:02,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1196 transitions. [2018-01-24 16:58:02,962 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1196 transitions. Word has length 16 [2018-01-24 16:58:02,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:58:02,962 INFO L432 AbstractCegarLoop]: Abstraction has 828 states and 1196 transitions. [2018-01-24 16:58:02,962 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 16:58:02,963 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1196 transitions. [2018-01-24 16:58:02,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-24 16:58:02,964 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:58:02,964 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:58:02,964 INFO L371 AbstractCegarLoop]: === Iteration 9 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 16:58:02,965 INFO L82 PathProgramCache]: Analyzing trace with hash 750766986, now seen corresponding path program 1 times [2018-01-24 16:58:02,965 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:58:02,965 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:02,966 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:02,966 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:02,966 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:58:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:02,982 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:58:03,081 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:03,081 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:03,082 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 16:58:03,083 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 27 with the following transitions: [2018-01-24 16:58:03,085 INFO L201 CegarAbsIntRunner]: [2], [4], [7], [15], [21], [98], [101], [102], [112], [115], [117], [145], [146], [147], [153], [154], [155], [156], [157] [2018-01-24 16:58:03,151 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 16:58:03,151 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:58:03,292 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-24 16:58:03,294 INFO L268 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Never found a fixpoint. Largest state had 39 variables. [2018-01-24 16:58:03,310 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-24 16:58:03,408 INFO L232 lantSequenceWeakener]: Weakened 10 states. On average, predicates are now at 83.52% of their original sizes. [2018-01-24 16:58:03,409 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-24 16:58:03,442 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-24 16:58:03,443 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-24 16:58:03,444 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-01-24 16:58:03,444 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:58:03,444 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 16:58:03,444 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 16:58:03,445 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-01-24 16:58:03,445 INFO L87 Difference]: Start difference. First operand 828 states and 1196 transitions. Second operand 6 states. [2018-01-24 16:58:04,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:58:04,467 INFO L93 Difference]: Finished difference Result 1710 states and 2487 transitions. [2018-01-24 16:58:04,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 16:58:04,467 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-01-24 16:58:04,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:58:04,473 INFO L225 Difference]: With dead ends: 1710 [2018-01-24 16:58:04,473 INFO L226 Difference]: Without dead ends: 887 [2018-01-24 16:58:04,476 INFO L525 BasicCegarLoop]: 2 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-01-24 16:58:04,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2018-01-24 16:58:04,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 864. [2018-01-24 16:58:04,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 864 states. [2018-01-24 16:58:04,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1256 transitions. [2018-01-24 16:58:04,543 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1256 transitions. Word has length 26 [2018-01-24 16:58:04,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:58:04,544 INFO L432 AbstractCegarLoop]: Abstraction has 864 states and 1256 transitions. [2018-01-24 16:58:04,544 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 16:58:04,544 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1256 transitions. [2018-01-24 16:58:04,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-24 16:58:04,545 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:58:04,545 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:58:04,545 INFO L371 AbstractCegarLoop]: === Iteration 10 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 16:58:04,545 INFO L82 PathProgramCache]: Analyzing trace with hash -938176756, now seen corresponding path program 1 times [2018-01-24 16:58:04,546 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:58:04,548 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:04,548 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:04,548 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:04,548 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:58:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:04,566 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:58:04,627 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:04,627 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:04,628 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 16:58:04,628 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 27 with the following transitions: [2018-01-24 16:58:04,628 INFO L201 CegarAbsIntRunner]: [2], [4], [7], [9], [15], [21], [98], [101], [102], [112], [115], [117], [145], [146], [147], [153], [154], [155], [156], [157] [2018-01-24 16:58:04,629 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 16:58:04,629 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:58:04,784 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:58:04,784 INFO L268 AbstractInterpreter]: Visited 20 different actions 43 times. Merged at 7 different actions 9 times. Never widened. Found 2 fixpoints after 1 different actions. Largest state had 39 variables. [2018-01-24 16:58:04,789 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-24 16:58:04,789 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:04,789 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 16:58:04,804 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:04,804 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 16:58:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:04,878 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 16:58:05,023 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:05,024 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 16:58:05,256 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:05,291 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:05,291 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-24 16:58:05,301 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:05,301 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 16:58:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:05,423 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 16:58:05,440 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:05,441 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 16:58:05,555 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:05,558 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-24 16:58:05,558 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9, 6, 6] total 15 [2018-01-24 16:58:05,558 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-24 16:58:05,559 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-24 16:58:05,559 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-24 16:58:05,559 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2018-01-24 16:58:05,559 INFO L87 Difference]: Start difference. First operand 864 states and 1256 transitions. Second operand 10 states. [2018-01-24 16:58:06,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:58:06,984 INFO L93 Difference]: Finished difference Result 2609 states and 4001 transitions. [2018-01-24 16:58:06,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-01-24 16:58:06,985 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2018-01-24 16:58:06,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:58:06,994 INFO L225 Difference]: With dead ends: 2609 [2018-01-24 16:58:06,994 INFO L226 Difference]: Without dead ends: 1786 [2018-01-24 16:58:06,997 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 97 SyntacticMatches, 5 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=198, Invalid=614, Unknown=0, NotChecked=0, Total=812 [2018-01-24 16:58:06,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2018-01-24 16:58:07,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1584. [2018-01-24 16:58:07,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1584 states. [2018-01-24 16:58:07,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2296 transitions. [2018-01-24 16:58:07,080 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2296 transitions. Word has length 26 [2018-01-24 16:58:07,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:58:07,080 INFO L432 AbstractCegarLoop]: Abstraction has 1584 states and 2296 transitions. [2018-01-24 16:58:07,080 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-24 16:58:07,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2296 transitions. [2018-01-24 16:58:07,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-24 16:58:07,081 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:58:07,082 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:58:07,082 INFO L371 AbstractCegarLoop]: === Iteration 11 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 16:58:07,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1524460851, now seen corresponding path program 1 times [2018-01-24 16:58:07,082 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:58:07,083 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:07,083 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:07,083 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:07,083 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:58:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:07,098 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:58:07,291 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:07,291 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:07,291 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 16:58:07,291 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 28 with the following transitions: [2018-01-24 16:58:07,291 INFO L201 CegarAbsIntRunner]: [2], [4], [9], [13], [15], [18], [29], [33], [47], [49], [50], [53], [54], [55], [56], [59], [97], [146], [147], [151], [152], [155], [156], [157] [2018-01-24 16:58:07,292 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 16:58:07,293 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:58:07,485 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:58:07,485 INFO L268 AbstractInterpreter]: Visited 24 different actions 43 times. Merged at 10 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 48 variables. [2018-01-24 16:58:07,490 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-24 16:58:07,490 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:07,490 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 16:58:07,501 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:07,502 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 16:58:07,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:07,544 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 16:58:07,667 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:07,668 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 16:58:07,849 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:07,880 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-01-24 16:58:07,880 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [9] total 12 [2018-01-24 16:58:07,880 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:58:07,881 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 16:58:07,881 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 16:58:07,881 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-01-24 16:58:07,881 INFO L87 Difference]: Start difference. First operand 1584 states and 2296 transitions. Second operand 5 states. [2018-01-24 16:58:08,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:58:08,086 INFO L93 Difference]: Finished difference Result 3928 states and 5820 transitions. [2018-01-24 16:58:08,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 16:58:08,087 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-01-24 16:58:08,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:58:08,096 INFO L225 Difference]: With dead ends: 3928 [2018-01-24 16:58:08,096 INFO L226 Difference]: Without dead ends: 2340 [2018-01-24 16:58:08,100 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-01-24 16:58:08,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2340 states. [2018-01-24 16:58:08,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2340 to 2322. [2018-01-24 16:58:08,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2322 states. [2018-01-24 16:58:08,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2322 states to 2322 states and 3482 transitions. [2018-01-24 16:58:08,203 INFO L78 Accepts]: Start accepts. Automaton has 2322 states and 3482 transitions. Word has length 27 [2018-01-24 16:58:08,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:58:08,203 INFO L432 AbstractCegarLoop]: Abstraction has 2322 states and 3482 transitions. [2018-01-24 16:58:08,203 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 16:58:08,203 INFO L276 IsEmpty]: Start isEmpty. Operand 2322 states and 3482 transitions. [2018-01-24 16:58:08,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-01-24 16:58:08,204 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:58:08,204 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:58:08,204 INFO L371 AbstractCegarLoop]: === Iteration 12 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 16:58:08,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1355764439, now seen corresponding path program 1 times [2018-01-24 16:58:08,205 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:58:08,206 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:08,206 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:08,206 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:08,206 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:58:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:08,217 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:58:08,326 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:08,326 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:58:08,327 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 16:58:08,327 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:58:08,327 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 16:58:08,327 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 16:58:08,327 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-24 16:58:08,327 INFO L87 Difference]: Start difference. First operand 2322 states and 3482 transitions. Second operand 7 states. [2018-01-24 16:58:08,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:58:08,940 INFO L93 Difference]: Finished difference Result 3183 states and 4598 transitions. [2018-01-24 16:58:08,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-24 16:58:08,940 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2018-01-24 16:58:08,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:58:08,943 INFO L225 Difference]: With dead ends: 3183 [2018-01-24 16:58:08,943 INFO L226 Difference]: Without dead ends: 737 [2018-01-24 16:58:08,947 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-01-24 16:58:08,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2018-01-24 16:58:08,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 678. [2018-01-24 16:58:08,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 678 states. [2018-01-24 16:58:08,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 913 transitions. [2018-01-24 16:58:08,980 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 913 transitions. Word has length 31 [2018-01-24 16:58:08,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:58:08,980 INFO L432 AbstractCegarLoop]: Abstraction has 678 states and 913 transitions. [2018-01-24 16:58:08,980 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 16:58:08,980 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 913 transitions. [2018-01-24 16:58:08,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-01-24 16:58:08,981 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:58:08,982 INFO L322 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:58:08,982 INFO L371 AbstractCegarLoop]: === Iteration 13 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 16:58:08,982 INFO L82 PathProgramCache]: Analyzing trace with hash 38071788, now seen corresponding path program 1 times [2018-01-24 16:58:08,982 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:58:08,983 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:08,983 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:08,983 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:08,983 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:58:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:08,996 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:58:09,098 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:09,098 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:09,098 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 16:58:09,098 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 39 with the following transitions: [2018-01-24 16:58:09,099 INFO L201 CegarAbsIntRunner]: [2], [4], [7], [9], [15], [21], [98], [101], [102], [105], [110], [112], [115], [117], [145], [146], [147], [153], [154], [155], [156], [157] [2018-01-24 16:58:09,100 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 16:58:09,100 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:58:09,204 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:58:09,204 INFO L268 AbstractInterpreter]: Visited 22 different actions 47 times. Merged at 7 different actions 9 times. Never widened. Found 2 fixpoints after 1 different actions. Largest state had 39 variables. [2018-01-24 16:58:09,208 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-24 16:58:09,208 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:09,209 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 16:58:09,229 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:09,229 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 16:58:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:09,279 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 16:58:09,585 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:09,586 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 16:58:09,918 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:09,940 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:09,940 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-24 16:58:09,947 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:09,947 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 16:58:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:10,042 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 16:58:10,162 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:10,163 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 16:58:10,266 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:10,268 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-24 16:58:10,268 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8] total 13 [2018-01-24 16:58:10,268 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-24 16:58:10,269 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-24 16:58:10,269 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-24 16:58:10,269 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-01-24 16:58:10,269 INFO L87 Difference]: Start difference. First operand 678 states and 913 transitions. Second operand 10 states. [2018-01-24 16:58:11,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:58:11,073 INFO L93 Difference]: Finished difference Result 2902 states and 4079 transitions. [2018-01-24 16:58:11,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-24 16:58:11,074 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 38 [2018-01-24 16:58:11,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:58:11,088 INFO L225 Difference]: With dead ends: 2902 [2018-01-24 16:58:11,088 INFO L226 Difference]: Without dead ends: 2234 [2018-01-24 16:58:11,091 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 131 SyntacticMatches, 18 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2018-01-24 16:58:11,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2018-01-24 16:58:11,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 1960. [2018-01-24 16:58:11,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1960 states. [2018-01-24 16:58:11,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1960 states to 1960 states and 2659 transitions. [2018-01-24 16:58:11,221 INFO L78 Accepts]: Start accepts. Automaton has 1960 states and 2659 transitions. Word has length 38 [2018-01-24 16:58:11,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:58:11,221 INFO L432 AbstractCegarLoop]: Abstraction has 1960 states and 2659 transitions. [2018-01-24 16:58:11,221 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-24 16:58:11,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1960 states and 2659 transitions. [2018-01-24 16:58:11,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-01-24 16:58:11,223 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:58:11,223 INFO L322 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:58:11,223 INFO L371 AbstractCegarLoop]: === Iteration 14 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 16:58:11,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1056748287, now seen corresponding path program 1 times [2018-01-24 16:58:11,224 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:58:11,225 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:11,225 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:11,225 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:11,225 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:58:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:11,242 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:58:11,444 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-01-24 16:58:11,445 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:11,445 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 16:58:11,445 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 42 with the following transitions: [2018-01-24 16:58:11,445 INFO L201 CegarAbsIntRunner]: [2], [4], [7], [9], [15], [21], [98], [101], [102], [112], [115], [117], [120], [130], [142], [144], [145], [146], [147], [153], [154], [155], [156], [157] [2018-01-24 16:58:11,446 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 16:58:11,447 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:58:11,650 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:58:11,650 INFO L268 AbstractInterpreter]: Visited 24 different actions 55 times. Merged at 9 different actions 13 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 39 variables. [2018-01-24 16:58:11,665 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-24 16:58:11,665 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:11,666 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 16:58:11,674 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:11,674 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 16:58:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:11,738 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 16:58:11,920 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-01-24 16:58:11,921 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 16:58:12,042 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:12,070 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:12,071 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-24 16:58:12,074 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:12,074 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 16:58:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:12,179 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 16:58:12,317 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 25 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:12,317 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 16:58:12,489 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 25 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:58:12,491 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-24 16:58:12,491 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 11, 8, 8] total 29 [2018-01-24 16:58:12,492 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-24 16:58:12,492 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-01-24 16:58:12,493 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-01-24 16:58:12,493 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=710, Unknown=0, NotChecked=0, Total=812 [2018-01-24 16:58:12,493 INFO L87 Difference]: Start difference. First operand 1960 states and 2659 transitions. Second operand 16 states. [2018-01-24 16:58:13,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:58:13,725 INFO L93 Difference]: Finished difference Result 3291 states and 4395 transitions. [2018-01-24 16:58:13,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-01-24 16:58:13,728 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 41 [2018-01-24 16:58:13,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:58:13,736 INFO L225 Difference]: With dead ends: 3291 [2018-01-24 16:58:13,736 INFO L226 Difference]: Without dead ends: 1287 [2018-01-24 16:58:13,742 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=525, Invalid=2555, Unknown=0, NotChecked=0, Total=3080 [2018-01-24 16:58:13,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2018-01-24 16:58:13,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1213. [2018-01-24 16:58:13,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1213 states. [2018-01-24 16:58:13,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1523 transitions. [2018-01-24 16:58:13,841 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1523 transitions. Word has length 41 [2018-01-24 16:58:13,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:58:13,842 INFO L432 AbstractCegarLoop]: Abstraction has 1213 states and 1523 transitions. [2018-01-24 16:58:13,842 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-01-24 16:58:13,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1523 transitions. [2018-01-24 16:58:13,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-01-24 16:58:13,843 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:58:13,843 INFO L322 BasicCegarLoop]: trace histogram [5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:58:13,844 INFO L371 AbstractCegarLoop]: === Iteration 15 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 16:58:13,844 INFO L82 PathProgramCache]: Analyzing trace with hash -729807276, now seen corresponding path program 1 times [2018-01-24 16:58:13,844 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:58:13,845 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:13,845 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:13,845 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:13,845 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:58:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:13,871 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:58:14,071 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 28 proven. 19 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-01-24 16:58:14,071 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:14,071 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 16:58:14,071 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 65 with the following transitions: [2018-01-24 16:58:14,072 INFO L201 CegarAbsIntRunner]: [2], [4], [7], [9], [13], [15], [18], [21], [29], [33], [47], [49], [50], [53], [54], [55], [56], [59], [62], [69], [73], [80], [90], [93], [97], [98], [101], [102], [105], [108], [145], [146], [147], [151], [152], [153], [154], [155], [156], [157] [2018-01-24 16:58:14,073 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 16:58:14,073 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:58:15,786 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:58:15,787 INFO L268 AbstractInterpreter]: Visited 40 different actions 247 times. Merged at 18 different actions 80 times. Widened at 1 different actions 1 times. Found 29 fixpoints after 8 different actions. Largest state had 48 variables. [2018-01-24 16:58:15,789 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-24 16:58:15,789 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:15,789 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 16:58:15,799 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:15,799 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 16:58:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:15,860 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 16:58:15,906 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 44 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-01-24 16:58:15,906 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 16:58:16,005 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 40 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-01-24 16:58:16,026 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:16,026 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-24 16:58:16,029 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:16,029 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 16:58:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:16,157 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 16:58:16,179 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 44 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-01-24 16:58:16,180 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 16:58:16,266 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 40 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-01-24 16:58:16,268 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-24 16:58:16,268 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8, 8, 8] total 19 [2018-01-24 16:58:16,268 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-24 16:58:16,268 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-01-24 16:58:16,269 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-01-24 16:58:16,269 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2018-01-24 16:58:16,269 INFO L87 Difference]: Start difference. First operand 1213 states and 1523 transitions. Second operand 15 states. [2018-01-24 16:58:17,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:58:17,019 INFO L93 Difference]: Finished difference Result 2887 states and 3684 transitions. [2018-01-24 16:58:17,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-01-24 16:58:17,019 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 64 [2018-01-24 16:58:17,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:58:17,030 INFO L225 Difference]: With dead ends: 2887 [2018-01-24 16:58:17,030 INFO L226 Difference]: Without dead ends: 1711 [2018-01-24 16:58:17,035 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 256 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=445, Invalid=1717, Unknown=0, NotChecked=0, Total=2162 [2018-01-24 16:58:17,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1711 states. [2018-01-24 16:58:17,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1711 to 1578. [2018-01-24 16:58:17,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1578 states. [2018-01-24 16:58:17,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 2009 transitions. [2018-01-24 16:58:17,134 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 2009 transitions. Word has length 64 [2018-01-24 16:58:17,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:58:17,134 INFO L432 AbstractCegarLoop]: Abstraction has 1578 states and 2009 transitions. [2018-01-24 16:58:17,134 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-01-24 16:58:17,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 2009 transitions. [2018-01-24 16:58:17,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-01-24 16:58:17,136 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:58:17,137 INFO L322 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:58:17,137 INFO L371 AbstractCegarLoop]: === Iteration 16 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 16:58:17,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1411010367, now seen corresponding path program 1 times [2018-01-24 16:58:17,137 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:58:17,138 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:17,138 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:17,138 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:17,138 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:58:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:17,166 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:58:17,329 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 62 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-01-24 16:58:17,329 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:17,329 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 16:58:17,329 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 77 with the following transitions: [2018-01-24 16:58:17,329 INFO L201 CegarAbsIntRunner]: [2], [4], [7], [9], [13], [15], [18], [21], [29], [33], [47], [49], [50], [53], [54], [55], [56], [59], [62], [65], [66], [69], [73], [80], [90], [93], [97], [98], [101], [102], [105], [108], [145], [146], [147], [151], [152], [153], [154], [155], [156], [157] [2018-01-24 16:58:17,331 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 16:58:17,331 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:58:19,033 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:58:19,033 INFO L268 AbstractInterpreter]: Visited 42 different actions 302 times. Merged at 19 different actions 101 times. Widened at 1 different actions 2 times. Found 39 fixpoints after 8 different actions. Largest state had 48 variables. [2018-01-24 16:58:19,036 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-24 16:58:19,036 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:19,036 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 16:58:19,049 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:19,049 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 16:58:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:19,128 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 16:58:19,189 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 66 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-01-24 16:58:19,189 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 16:58:19,343 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 62 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-01-24 16:58:19,364 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:19,364 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-24 16:58:19,368 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:19,368 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 16:58:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:19,479 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 16:58:19,506 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 66 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-01-24 16:58:19,507 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 16:58:19,577 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 62 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-01-24 16:58:19,578 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-24 16:58:19,579 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9] total 16 [2018-01-24 16:58:19,579 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-24 16:58:19,579 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-24 16:58:19,579 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-24 16:58:19,580 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2018-01-24 16:58:19,580 INFO L87 Difference]: Start difference. First operand 1578 states and 2009 transitions. Second operand 11 states. [2018-01-24 16:58:19,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:58:19,938 INFO L93 Difference]: Finished difference Result 3582 states and 4683 transitions. [2018-01-24 16:58:19,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-24 16:58:19,966 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 76 [2018-01-24 16:58:19,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:58:19,977 INFO L225 Difference]: With dead ends: 3582 [2018-01-24 16:58:19,977 INFO L226 Difference]: Without dead ends: 2041 [2018-01-24 16:58:19,983 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 297 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2018-01-24 16:58:19,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2041 states. [2018-01-24 16:58:20,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2041 to 1578. [2018-01-24 16:58:20,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1578 states. [2018-01-24 16:58:20,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 2009 transitions. [2018-01-24 16:58:20,102 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 2009 transitions. Word has length 76 [2018-01-24 16:58:20,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:58:20,102 INFO L432 AbstractCegarLoop]: Abstraction has 1578 states and 2009 transitions. [2018-01-24 16:58:20,102 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-24 16:58:20,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 2009 transitions. [2018-01-24 16:58:20,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-01-24 16:58:20,104 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:58:20,104 INFO L322 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:58:20,104 INFO L371 AbstractCegarLoop]: === Iteration 17 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 16:58:20,105 INFO L82 PathProgramCache]: Analyzing trace with hash 400111999, now seen corresponding path program 1 times [2018-01-24 16:58:20,105 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:58:20,105 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:20,106 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:20,106 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:20,106 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:58:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:20,130 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:58:20,259 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 62 proven. 5 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-01-24 16:58:20,259 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:20,259 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 16:58:20,260 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 77 with the following transitions: [2018-01-24 16:58:20,260 INFO L201 CegarAbsIntRunner]: [2], [4], [7], [9], [13], [15], [18], [21], [29], [33], [47], [49], [50], [53], [54], [55], [56], [59], [62], [69], [72], [73], [80], [90], [93], [97], [98], [101], [102], [105], [108], [145], [146], [147], [151], [152], [153], [154], [155], [156], [157] [2018-01-24 16:58:20,264 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 16:58:20,264 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:58:21,695 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:58:21,695 INFO L268 AbstractInterpreter]: Visited 41 different actions 297 times. Merged at 19 different actions 101 times. Widened at 1 different actions 2 times. Found 39 fixpoints after 8 different actions. Largest state had 48 variables. [2018-01-24 16:58:21,702 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-24 16:58:21,702 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:21,702 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 16:58:21,712 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:21,713 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 16:58:21,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:21,774 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 16:58:21,860 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 71 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-01-24 16:58:21,861 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 16:58:21,951 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 57 proven. 12 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-01-24 16:58:21,972 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:21,972 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-24 16:58:21,975 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:21,975 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 16:58:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:22,117 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 16:58:22,130 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 71 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-01-24 16:58:22,130 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 16:58:22,202 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 57 proven. 12 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-01-24 16:58:22,204 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-24 16:58:22,205 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8, 8, 8] total 17 [2018-01-24 16:58:22,205 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-24 16:58:22,205 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-01-24 16:58:22,205 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-01-24 16:58:22,206 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2018-01-24 16:58:22,206 INFO L87 Difference]: Start difference. First operand 1578 states and 2009 transitions. Second operand 15 states. [2018-01-24 16:58:22,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:58:22,774 INFO L93 Difference]: Finished difference Result 4173 states and 5585 transitions. [2018-01-24 16:58:22,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-01-24 16:58:22,775 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 76 [2018-01-24 16:58:22,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:58:22,787 INFO L225 Difference]: With dead ends: 4173 [2018-01-24 16:58:22,787 INFO L226 Difference]: Without dead ends: 2592 [2018-01-24 16:58:22,792 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 299 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=289, Invalid=901, Unknown=0, NotChecked=0, Total=1190 [2018-01-24 16:58:22,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2592 states. [2018-01-24 16:58:22,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2592 to 2159. [2018-01-24 16:58:22,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2159 states. [2018-01-24 16:58:22,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2159 states to 2159 states and 2817 transitions. [2018-01-24 16:58:22,944 INFO L78 Accepts]: Start accepts. Automaton has 2159 states and 2817 transitions. Word has length 76 [2018-01-24 16:58:22,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:58:22,944 INFO L432 AbstractCegarLoop]: Abstraction has 2159 states and 2817 transitions. [2018-01-24 16:58:22,944 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-01-24 16:58:22,945 INFO L276 IsEmpty]: Start isEmpty. Operand 2159 states and 2817 transitions. [2018-01-24 16:58:22,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-01-24 16:58:22,947 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:58:22,947 INFO L322 BasicCegarLoop]: trace histogram [7, 7, 6, 5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:58:22,947 INFO L371 AbstractCegarLoop]: === Iteration 18 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 16:58:22,947 INFO L82 PathProgramCache]: Analyzing trace with hash -857392918, now seen corresponding path program 1 times [2018-01-24 16:58:22,947 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:58:22,948 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:22,948 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:22,948 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:22,948 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:58:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:22,974 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:58:23,103 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 85 proven. 15 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-01-24 16:58:23,103 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:23,103 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 16:58:23,103 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 91 with the following transitions: [2018-01-24 16:58:23,104 INFO L201 CegarAbsIntRunner]: [2], [4], [7], [9], [13], [15], [18], [21], [29], [33], [47], [49], [50], [53], [54], [55], [56], [59], [62], [65], [66], [69], [73], [76], [77], [80], [90], [93], [97], [98], [101], [102], [105], [108], [145], [146], [147], [151], [152], [153], [154], [155], [156], [157] [2018-01-24 16:58:23,105 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 16:58:23,105 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:58:24,740 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:58:24,740 INFO L268 AbstractInterpreter]: Visited 44 different actions 365 times. Merged at 20 different actions 126 times. Widened at 1 different actions 3 times. Found 51 fixpoints after 8 different actions. Largest state had 48 variables. [2018-01-24 16:58:24,742 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-24 16:58:24,742 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:24,742 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 16:58:24,746 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:24,746 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 16:58:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:24,801 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 16:58:24,831 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 105 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-01-24 16:58:24,831 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 16:58:24,926 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 85 proven. 15 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-01-24 16:58:24,947 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:24,968 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 16 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-24 16:58:24,971 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:24,972 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 16:58:25,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:25,097 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 16:58:25,120 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 105 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-01-24 16:58:25,120 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 16:58:25,192 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 85 proven. 15 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-01-24 16:58:25,194 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-24 16:58:25,194 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9] total 14 [2018-01-24 16:58:25,194 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-24 16:58:25,195 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-24 16:58:25,195 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-24 16:58:25,195 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-01-24 16:58:25,195 INFO L87 Difference]: Start difference. First operand 2159 states and 2817 transitions. Second operand 11 states. [2018-01-24 16:58:25,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:58:25,552 INFO L93 Difference]: Finished difference Result 4708 states and 6245 transitions. [2018-01-24 16:58:25,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-24 16:58:25,552 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 90 [2018-01-24 16:58:25,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:58:25,566 INFO L225 Difference]: With dead ends: 4708 [2018-01-24 16:58:25,566 INFO L226 Difference]: Without dead ends: 2586 [2018-01-24 16:58:25,571 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 352 SyntacticMatches, 8 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=126, Invalid=336, Unknown=0, NotChecked=0, Total=462 [2018-01-24 16:58:25,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2586 states. [2018-01-24 16:58:25,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2586 to 2560. [2018-01-24 16:58:25,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2560 states. [2018-01-24 16:58:25,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 3409 transitions. [2018-01-24 16:58:25,734 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 3409 transitions. Word has length 90 [2018-01-24 16:58:25,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:58:25,735 INFO L432 AbstractCegarLoop]: Abstraction has 2560 states and 3409 transitions. [2018-01-24 16:58:25,735 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-24 16:58:25,735 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 3409 transitions. [2018-01-24 16:58:25,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-01-24 16:58:25,736 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:58:25,736 INFO L322 BasicCegarLoop]: trace histogram [7, 7, 6, 5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:58:25,736 INFO L371 AbstractCegarLoop]: === Iteration 19 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 16:58:25,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1737909569, now seen corresponding path program 1 times [2018-01-24 16:58:25,737 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:58:25,737 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:25,737 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:25,737 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:25,737 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:58:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:25,762 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:58:25,950 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 86 proven. 8 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2018-01-24 16:58:25,950 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:25,951 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 16:58:25,951 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 93 with the following transitions: [2018-01-24 16:58:25,951 INFO L201 CegarAbsIntRunner]: [2], [4], [7], [9], [13], [15], [18], [21], [29], [33], [47], [49], [50], [53], [54], [55], [56], [59], [62], [65], [66], [69], [73], [80], [90], [93], [94], [96], [97], [98], [101], [102], [105], [108], [145], [146], [147], [151], [152], [153], [154], [155], [156], [157] [2018-01-24 16:58:25,952 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 16:58:25,952 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:58:27,466 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:58:27,467 INFO L268 AbstractInterpreter]: Visited 44 different actions 370 times. Merged at 20 different actions 130 times. Widened at 2 different actions 4 times. Found 52 fixpoints after 8 different actions. Largest state had 48 variables. [2018-01-24 16:58:27,469 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-24 16:58:27,469 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:27,470 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 16:58:27,474 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:27,475 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 16:58:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:27,532 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 16:58:27,619 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 97 proven. 22 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-01-24 16:58:27,619 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 16:58:27,801 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 95 proven. 21 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-01-24 16:58:27,823 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:27,823 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 18 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-24 16:58:27,826 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:27,826 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 16:58:27,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:27,957 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 16:58:27,971 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 97 proven. 22 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-01-24 16:58:27,971 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 16:58:28,070 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 95 proven. 21 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-01-24 16:58:28,071 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-24 16:58:28,072 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 12, 11, 12] total 25 [2018-01-24 16:58:28,072 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-24 16:58:28,072 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-01-24 16:58:28,072 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-01-24 16:58:28,073 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600 [2018-01-24 16:58:28,073 INFO L87 Difference]: Start difference. First operand 2560 states and 3409 transitions. Second operand 18 states. [2018-01-24 16:58:29,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:58:29,140 INFO L93 Difference]: Finished difference Result 6919 states and 9555 transitions. [2018-01-24 16:58:29,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-01-24 16:58:29,140 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 92 [2018-01-24 16:58:29,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:58:29,157 INFO L225 Difference]: With dead ends: 6919 [2018-01-24 16:58:29,157 INFO L226 Difference]: Without dead ends: 4342 [2018-01-24 16:58:29,165 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 358 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=441, Invalid=1451, Unknown=0, NotChecked=0, Total=1892 [2018-01-24 16:58:29,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4342 states. [2018-01-24 16:58:29,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4342 to 3249. [2018-01-24 16:58:29,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3249 states. [2018-01-24 16:58:29,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3249 states to 3249 states and 4307 transitions. [2018-01-24 16:58:29,389 INFO L78 Accepts]: Start accepts. Automaton has 3249 states and 4307 transitions. Word has length 92 [2018-01-24 16:58:29,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:58:29,389 INFO L432 AbstractCegarLoop]: Abstraction has 3249 states and 4307 transitions. [2018-01-24 16:58:29,389 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-01-24 16:58:29,389 INFO L276 IsEmpty]: Start isEmpty. Operand 3249 states and 4307 transitions. [2018-01-24 16:58:29,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-01-24 16:58:29,391 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:58:29,391 INFO L322 BasicCegarLoop]: trace histogram [8, 8, 7, 6, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:58:29,391 INFO L371 AbstractCegarLoop]: === Iteration 20 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 16:58:29,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1351671718, now seen corresponding path program 1 times [2018-01-24 16:58:29,391 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:58:29,392 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:29,392 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:29,392 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:29,392 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:58:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:29,418 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:58:29,631 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 118 proven. 6 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-01-24 16:58:29,632 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:29,632 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 16:58:29,632 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 107 with the following transitions: [2018-01-24 16:58:29,632 INFO L201 CegarAbsIntRunner]: [2], [4], [7], [9], [13], [15], [18], [21], [29], [33], [47], [49], [50], [53], [54], [55], [56], [59], [62], [69], [72], [73], [76], [77], [80], [90], [93], [94], [96], [97], [98], [101], [102], [105], [108], [145], [146], [147], [151], [152], [153], [154], [155], [156], [157] [2018-01-24 16:58:29,633 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 16:58:29,633 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:58:31,098 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:58:31,098 INFO L268 AbstractInterpreter]: Visited 45 different actions 342 times. Merged at 21 different actions 125 times. Widened at 2 different actions 3 times. Found 50 fixpoints after 8 different actions. Largest state had 48 variables. [2018-01-24 16:58:31,101 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-24 16:58:31,101 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:31,101 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 16:58:31,106 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:31,106 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 16:58:31,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:31,165 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 16:58:31,201 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 122 proven. 6 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-01-24 16:58:31,201 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 16:58:31,296 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 118 proven. 6 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-01-24 16:58:31,317 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:31,317 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 20 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-24 16:58:31,320 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:31,320 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 16:58:31,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:31,457 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 16:58:31,475 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 122 proven. 6 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-01-24 16:58:31,475 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 16:58:31,561 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 118 proven. 6 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-01-24 16:58:31,563 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-24 16:58:31,563 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9] total 14 [2018-01-24 16:58:31,563 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-24 16:58:31,564 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-24 16:58:31,564 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-24 16:58:31,564 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-01-24 16:58:31,564 INFO L87 Difference]: Start difference. First operand 3249 states and 4307 transitions. Second operand 11 states. [2018-01-24 16:58:31,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:58:31,972 INFO L93 Difference]: Finished difference Result 7483 states and 10172 transitions. [2018-01-24 16:58:31,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-24 16:58:31,973 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 106 [2018-01-24 16:58:31,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:58:31,985 INFO L225 Difference]: With dead ends: 7483 [2018-01-24 16:58:31,985 INFO L226 Difference]: Without dead ends: 4267 [2018-01-24 16:58:31,991 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 416 SyntacticMatches, 8 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2018-01-24 16:58:31,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4267 states. [2018-01-24 16:58:32,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4267 to 3180. [2018-01-24 16:58:32,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3180 states. [2018-01-24 16:58:32,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3180 states to 3180 states and 4214 transitions. [2018-01-24 16:58:32,162 INFO L78 Accepts]: Start accepts. Automaton has 3180 states and 4214 transitions. Word has length 106 [2018-01-24 16:58:32,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:58:32,162 INFO L432 AbstractCegarLoop]: Abstraction has 3180 states and 4214 transitions. [2018-01-24 16:58:32,162 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-24 16:58:32,162 INFO L276 IsEmpty]: Start isEmpty. Operand 3180 states and 4214 transitions. [2018-01-24 16:58:32,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-01-24 16:58:32,164 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:58:32,164 INFO L322 BasicCegarLoop]: trace histogram [8, 8, 7, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:58:32,164 INFO L371 AbstractCegarLoop]: === Iteration 21 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 16:58:32,165 INFO L82 PathProgramCache]: Analyzing trace with hash 31841730, now seen corresponding path program 1 times [2018-01-24 16:58:32,165 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:58:32,165 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:32,165 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:32,165 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:32,165 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:58:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:32,188 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:58:32,340 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 119 proven. 18 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-01-24 16:58:32,341 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:32,341 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 16:58:32,341 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 108 with the following transitions: [2018-01-24 16:58:32,341 INFO L201 CegarAbsIntRunner]: [2], [4], [7], [9], [13], [15], [18], [21], [29], [33], [47], [49], [50], [53], [54], [55], [56], [59], [62], [69], [72], [73], [80], [83], [86], [90], [93], [94], [96], [97], [98], [101], [102], [105], [108], [145], [146], [147], [151], [152], [153], [154], [155], [156], [157] [2018-01-24 16:58:32,342 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 16:58:32,342 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:58:35,169 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:58:35,169 INFO L268 AbstractInterpreter]: Visited 45 different actions 587 times. Merged at 21 different actions 222 times. Widened at 3 different actions 11 times. Found 93 fixpoints after 8 different actions. Largest state had 48 variables. [2018-01-24 16:58:35,173 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-24 16:58:35,173 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:35,173 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 16:58:35,179 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:35,179 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 16:58:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:35,243 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 16:58:35,322 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 150 proven. 5 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-01-24 16:58:35,323 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 16:58:35,454 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 119 proven. 18 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-01-24 16:58:35,475 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:35,475 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 22 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-24 16:58:35,481 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:35,481 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 16:58:35,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:35,637 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 16:58:35,711 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 150 proven. 5 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-01-24 16:58:35,711 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 16:58:35,806 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 119 proven. 18 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-01-24 16:58:35,808 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-24 16:58:35,808 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9] total 14 [2018-01-24 16:58:35,808 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-24 16:58:35,809 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-24 16:58:35,809 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-24 16:58:35,809 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-01-24 16:58:35,809 INFO L87 Difference]: Start difference. First operand 3180 states and 4214 transitions. Second operand 11 states. [2018-01-24 16:58:36,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:58:36,261 INFO L93 Difference]: Finished difference Result 7099 states and 9555 transitions. [2018-01-24 16:58:36,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-24 16:58:36,262 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 107 [2018-01-24 16:58:36,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:58:36,272 INFO L225 Difference]: With dead ends: 7099 [2018-01-24 16:58:36,272 INFO L226 Difference]: Without dead ends: 3974 [2018-01-24 16:58:36,280 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 420 SyntacticMatches, 8 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=336, Unknown=0, NotChecked=0, Total=462 [2018-01-24 16:58:36,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3974 states. [2018-01-24 16:58:36,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3974 to 3579. [2018-01-24 16:58:36,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3579 states. [2018-01-24 16:58:36,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3579 states to 3579 states and 4802 transitions. [2018-01-24 16:58:36,466 INFO L78 Accepts]: Start accepts. Automaton has 3579 states and 4802 transitions. Word has length 107 [2018-01-24 16:58:36,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:58:36,466 INFO L432 AbstractCegarLoop]: Abstraction has 3579 states and 4802 transitions. [2018-01-24 16:58:36,466 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-24 16:58:36,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3579 states and 4802 transitions. [2018-01-24 16:58:36,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-01-24 16:58:36,470 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:58:36,470 INFO L322 BasicCegarLoop]: trace histogram [8, 8, 7, 6, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:58:36,470 INFO L371 AbstractCegarLoop]: === Iteration 22 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 16:58:36,470 INFO L82 PathProgramCache]: Analyzing trace with hash 78498244, now seen corresponding path program 1 times [2018-01-24 16:58:36,471 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:58:36,471 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:36,471 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:36,471 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:58:36,472 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:58:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:36,494 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:58:36,663 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 108 proven. 35 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-01-24 16:58:36,663 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:36,664 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 16:58:36,664 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 110 with the following transitions: [2018-01-24 16:58:36,664 INFO L201 CegarAbsIntRunner]: [2], [4], [7], [9], [13], [15], [18], [21], [29], [33], [47], [49], [50], [53], [54], [55], [56], [59], [62], [69], [73], [76], [77], [80], [83], [86], [90], [93], [94], [96], [97], [98], [101], [102], [105], [108], [145], [146], [147], [151], [152], [153], [154], [155], [156], [157] [2018-01-24 16:58:36,665 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 16:58:36,665 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-01-24 16:58:37,289 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-01-24 16:58:37,290 WARN L157 AbstractInterpreter]: Abstract interpretation run out of time [2018-01-24 16:58:37,290 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-24 16:58:37,290 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:58:37,290 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 16:58:37,295 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:58:37,296 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 16:58:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:58:37,355 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 16:58:37,356 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-01-24 16:58:37,356 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-24 16:58:37,359 WARN L187 ceAbstractionStarter]: Timeout [2018-01-24 16:58:37,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 04:58:37 BoogieIcfgContainer [2018-01-24 16:58:37,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 16:58:37,361 INFO L168 Benchmark]: Toolchain (without parser) took 36973.40 ms. Allocated memory was 304.1 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 264.0 MB in the beginning and 1.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 305.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:58:37,361 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 304.1 MB. Free memory is still 270.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 16:58:37,361 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.96 ms. Allocated memory is still 304.1 MB. Free memory was 262.9 MB in the beginning and 252.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:58:37,362 INFO L168 Benchmark]: Boogie Preprocessor took 37.64 ms. Allocated memory is still 304.1 MB. Free memory was 252.0 MB in the beginning and 250.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:58:37,362 INFO L168 Benchmark]: RCFGBuilder took 412.09 ms. Allocated memory is still 304.1 MB. Free memory was 250.0 MB in the beginning and 224.0 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:58:37,362 INFO L168 Benchmark]: TraceAbstraction took 36295.14 ms. Allocated memory was 304.1 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 224.0 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 265.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:58:37,363 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 304.1 MB. Free memory is still 270.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 218.96 ms. Allocated memory is still 304.1 MB. Free memory was 262.9 MB in the beginning and 252.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 37.64 ms. Allocated memory is still 304.1 MB. Free memory was 252.0 MB in the beginning and 250.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 412.09 ms. Allocated memory is still 304.1 MB. Free memory was 250.0 MB in the beginning and 224.0 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 36295.14 ms. Allocated memory was 304.1 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 224.0 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 265.0 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 7 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 175 LocStat_NO_SUPPORTING_DISEQUALITIES : 0 LocStat_NO_DISJUNCTIONS : -14 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 12 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 92 TransStat_NO_SUPPORTING_DISEQUALITIES : 2 TransStat_NO_DISJUNCTIONS : 14 TransStat_MAX_NO_DISJUNCTIONS : 3 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 1.204589 RENAME_VARIABLES(MILLISECONDS) : 0.219602 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 1.141377 PROJECTAWAY(MILLISECONDS) : 0.045682 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.021058 DISJOIN(MILLISECONDS) : 0.000000 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.266260 ADD_EQUALITY(MILLISECONDS) : 0.062721 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.017591 #CONJOIN_DISJUNCTIVE : 15 #RENAME_VARIABLES : 25 #UNFREEZE : 0 #CONJOIN : 103 #PROJECTAWAY : 24 #ADD_WEAK_EQUALITY : 1 #DISJOIN : 0 #RENAME_VARIABLES_DISJUNCTIVE : 23 #ADD_EQUALITY : 91 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 2 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 18 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 406 LocStat_NO_SUPPORTING_DISEQUALITIES : 3 LocStat_NO_DISJUNCTIONS : -36 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 26 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 140 TransStat_NO_SUPPORTING_DISEQUALITIES : 7 TransStat_NO_DISJUNCTIONS : 32 TransStat_MAX_NO_DISJUNCTIONS : 3 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.595218 RENAME_VARIABLES(MILLISECONDS) : 0.104394 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.565752 PROJECTAWAY(MILLISECONDS) : 0.084572 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.002711 DISJOIN(MILLISECONDS) : 0.208336 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.128674 ADD_EQUALITY(MILLISECONDS) : 0.029447 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.033873 #CONJOIN_DISJUNCTIVE : 85 #RENAME_VARIABLES : 175 #UNFREEZE : 0 #CONJOIN : 253 #PROJECTAWAY : 111 #ADD_WEAK_EQUALITY : 1 #DISJOIN : 24 #RENAME_VARIABLES_DISJUNCTIVE : 155 #ADD_EQUALITY : 138 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 7 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 23 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 485 LocStat_NO_SUPPORTING_DISEQUALITIES : 38 LocStat_NO_DISJUNCTIONS : -46 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 30 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 162 TransStat_NO_SUPPORTING_DISEQUALITIES : 10 TransStat_NO_DISJUNCTIONS : 34 TransStat_MAX_NO_DISJUNCTIONS : 3 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 1.010133 RENAME_VARIABLES(MILLISECONDS) : 0.005491 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.607454 PROJECTAWAY(MILLISECONDS) : 1.596896 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001077 DISJOIN(MILLISECONDS) : 0.193544 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.014440 ADD_EQUALITY(MILLISECONDS) : 0.019722 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.019346 #CONJOIN_DISJUNCTIVE : 82 #RENAME_VARIABLES : 158 #UNFREEZE : 0 #CONJOIN : 265 #PROJECTAWAY : 113 #ADD_WEAK_EQUALITY : 15 #DISJOIN : 29 #RENAME_VARIABLES_DISJUNCTIVE : 146 #ADD_EQUALITY : 167 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 7 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 19 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 436 LocStat_NO_SUPPORTING_DISEQUALITIES : 3 LocStat_NO_DISJUNCTIONS : -38 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 28 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 141 TransStat_NO_SUPPORTING_DISEQUALITIES : 9 TransStat_NO_DISJUNCTIONS : 35 TransStat_MAX_NO_DISJUNCTIONS : 3 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.349906 RENAME_VARIABLES(MILLISECONDS) : 0.072180 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.327885 PROJECTAWAY(MILLISECONDS) : 0.054787 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.002634 DISJOIN(MILLISECONDS) : 0.120368 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.096550 ADD_EQUALITY(MILLISECONDS) : 0.015470 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.024273 #CONJOIN_DISJUNCTIVE : 91 #RENAME_VARIABLES : 189 #UNFREEZE : 0 #CONJOIN : 261 #PROJECTAWAY : 116 #ADD_WEAK_EQUALITY : 1 #DISJOIN : 25 #RENAME_VARIABLES_DISJUNCTIVE : 167 #ADD_EQUALITY : 139 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 9 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 21 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 483 LocStat_NO_SUPPORTING_DISEQUALITIES : 23 LocStat_NO_DISJUNCTIONS : -42 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 30 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 151 TransStat_NO_SUPPORTING_DISEQUALITIES : 9 TransStat_NO_DISJUNCTIONS : 38 TransStat_MAX_NO_DISJUNCTIONS : 3 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.515109 RENAME_VARIABLES(MILLISECONDS) : 0.004608 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.190024 PROJECTAWAY(MILLISECONDS) : 0.827906 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.003287 DISJOIN(MILLISECONDS) : 0.171236 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.019146 ADD_EQUALITY(MILLISECONDS) : 0.028703 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.012593 #CONJOIN_DISJUNCTIVE : 115 #RENAME_VARIABLES : 249 #UNFREEZE : 0 #CONJOIN : 323 #PROJECTAWAY : 161 #ADD_WEAK_EQUALITY : 1 #DISJOIN : 35 #RENAME_VARIABLES_DISJUNCTIVE : 221 #ADD_EQUALITY : 151 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 9 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 35 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 764 LocStat_NO_SUPPORTING_DISEQUALITIES : 76 LocStat_NO_DISJUNCTIONS : -70 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 48 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 236 TransStat_NO_SUPPORTING_DISEQUALITIES : 17 TransStat_NO_DISJUNCTIONS : 59 TransStat_MAX_NO_DISJUNCTIONS : 3 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 1.004927 RENAME_VARIABLES(MILLISECONDS) : 0.004407 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.617165 PROJECTAWAY(MILLISECONDS) : 1.928460 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001296 DISJOIN(MILLISECONDS) : 0.429358 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.017722 ADD_EQUALITY(MILLISECONDS) : 0.011316 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.008570 #CONJOIN_DISJUNCTIVE : 567 #RENAME_VARIABLES : 1497 #UNFREEZE : 0 #CONJOIN : 1295 #PROJECTAWAY : 893 #ADD_WEAK_EQUALITY : 15 #DISJOIN : 282 #RENAME_VARIABLES_DISJUNCTIVE : 1353 #ADD_EQUALITY : 245 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 14 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 36 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 793 LocStat_NO_SUPPORTING_DISEQUALITIES : 69 LocStat_NO_DISJUNCTIONS : -72 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 50 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 239 TransStat_NO_SUPPORTING_DISEQUALITIES : 17 TransStat_NO_DISJUNCTIONS : 61 TransStat_MAX_NO_DISJUNCTIONS : 3 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.466424 RENAME_VARIABLES(MILLISECONDS) : 0.002585 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.261344 PROJECTAWAY(MILLISECONDS) : 1.082715 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001287 DISJOIN(MILLISECONDS) : 0.186821 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.008747 ADD_EQUALITY(MILLISECONDS) : 0.008326 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.010854 #CONJOIN_DISJUNCTIVE : 712 #RENAME_VARIABLES : 1919 #UNFREEZE : 0 #CONJOIN : 1609 #PROJECTAWAY : 1145 #ADD_WEAK_EQUALITY : 21 #DISJOIN : 371 #RENAME_VARIABLES_DISJUNCTIVE : 1741 #ADD_EQUALITY : 253 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 14 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 35 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 764 LocStat_NO_SUPPORTING_DISEQUALITIES : 68 LocStat_NO_DISJUNCTIONS : -70 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 49 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 239 TransStat_NO_SUPPORTING_DISEQUALITIES : 17 TransStat_NO_DISJUNCTIONS : 60 TransStat_MAX_NO_DISJUNCTIONS : 3 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.412709 RENAME_VARIABLES(MILLISECONDS) : 0.001625 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.193519 PROJECTAWAY(MILLISECONDS) : 0.996498 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001439 DISJOIN(MILLISECONDS) : 0.179987 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.007093 ADD_EQUALITY(MILLISECONDS) : 0.007736 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.013877 #CONJOIN_DISJUNCTIVE : 713 #RENAME_VARIABLES : 1939 #UNFREEZE : 0 #CONJOIN : 1628 #PROJECTAWAY : 1169 #ADD_WEAK_EQUALITY : 15 #DISJOIN : 366 #RENAME_VARIABLES_DISJUNCTIVE : 1761 #ADD_EQUALITY : 248 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 14 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 37 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 822 LocStat_NO_SUPPORTING_DISEQUALITIES : 69 LocStat_NO_DISJUNCTIONS : -74 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 52 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 243 TransStat_NO_SUPPORTING_DISEQUALITIES : 17 TransStat_NO_DISJUNCTIONS : 63 TransStat_MAX_NO_DISJUNCTIONS : 3 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.474762 RENAME_VARIABLES(MILLISECONDS) : 0.001572 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.239429 PROJECTAWAY(MILLISECONDS) : 1.016094 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001062 DISJOIN(MILLISECONDS) : 0.183879 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.006855 ADD_EQUALITY(MILLISECONDS) : 0.005262 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.036863 #CONJOIN_DISJUNCTIVE : 890 #RENAME_VARIABLES : 2449 #UNFREEZE : 0 #CONJOIN : 2012 #PROJECTAWAY : 1482 #ADD_WEAK_EQUALITY : 27 #DISJOIN : 465 #RENAME_VARIABLES_DISJUNCTIVE : 2237 #ADD_EQUALITY : 261 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 14 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 37 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 817 LocStat_NO_SUPPORTING_DISEQUALITIES : 73 LocStat_NO_DISJUNCTIONS : -74 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 52 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 240 TransStat_NO_SUPPORTING_DISEQUALITIES : 17 TransStat_NO_DISJUNCTIONS : 63 TransStat_MAX_NO_DISJUNCTIONS : 3 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.405750 RENAME_VARIABLES(MILLISECONDS) : 0.001511 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.188516 PROJECTAWAY(MILLISECONDS) : 1.181228 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001053 DISJOIN(MILLISECONDS) : 0.160799 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.006927 ADD_EQUALITY(MILLISECONDS) : 0.010181 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.010772 #CONJOIN_DISJUNCTIVE : 899 #RENAME_VARIABLES : 2469 #UNFREEZE : 0 #CONJOIN : 2014 #PROJECTAWAY : 1493 #ADD_WEAK_EQUALITY : 21 #DISJOIN : 481 #RENAME_VARIABLES_DISJUNCTIVE : 2257 #ADD_EQUALITY : 254 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 14 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 37 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 817 LocStat_NO_SUPPORTING_DISEQUALITIES : 73 LocStat_NO_DISJUNCTIONS : -74 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 53 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 244 TransStat_NO_SUPPORTING_DISEQUALITIES : 17 TransStat_NO_DISJUNCTIONS : 64 TransStat_MAX_NO_DISJUNCTIONS : 3 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.378424 RENAME_VARIABLES(MILLISECONDS) : 0.001648 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.185852 PROJECTAWAY(MILLISECONDS) : 0.899432 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001043 DISJOIN(MILLISECONDS) : 0.163085 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.007082 ADD_EQUALITY(MILLISECONDS) : 0.011757 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.007018 #CONJOIN_DISJUNCTIVE : 832 #RENAME_VARIABLES : 2295 #UNFREEZE : 0 #CONJOIN : 1914 #PROJECTAWAY : 1434 #ADD_WEAK_EQUALITY : 21 #DISJOIN : 411 #RENAME_VARIABLES_DISJUNCTIVE : 2117 #ADD_EQUALITY : 257 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 14 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 37 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 718 LocStat_NO_SUPPORTING_DISEQUALITIES : 73 LocStat_NO_DISJUNCTIONS : -74 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 53 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 245 TransStat_NO_SUPPORTING_DISEQUALITIES : 17 TransStat_NO_DISJUNCTIONS : 64 TransStat_MAX_NO_DISJUNCTIONS : 3 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.400124 RENAME_VARIABLES(MILLISECONDS) : 0.002788 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.203286 PROJECTAWAY(MILLISECONDS) : 43.637917 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.000930 DISJOIN(MILLISECONDS) : 0.198371 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.008356 ADD_EQUALITY(MILLISECONDS) : 0.011679 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.005677 #CONJOIN_DISJUNCTIVE : 1542 #RENAME_VARIABLES : 4385 #UNFREEZE : 0 #CONJOIN : 3429 #PROJECTAWAY : 2688 #ADD_WEAK_EQUALITY : 15 #DISJOIN : 853 #RENAME_VARIABLES_DISJUNCTIVE : 4037 #ADD_EQUALITY : 254 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 14 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 681). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 8, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 682). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 8, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 682). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 8, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 681). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 8, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 672). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 8, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 672). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 8, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 698). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 8, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 697). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 8, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 698). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 8, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 697). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 8, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - TimeoutResultAtElement [Line: 688]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 688). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 8, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 638). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 8, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 635). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 8, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 634). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 8, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 634). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 8, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 644). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 8, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 644). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 8, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 635). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 8, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 638). Cancelled while BasicCegarLoop was analyzing trace of length 110 with TraceHistMax 8, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 76 locations, 19 error locations. TIMEOUT Result, 36.2s OverallTime, 22 OverallIterations, 8 TraceHistogramMax, 10.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2059 SDtfs, 4792 SDslu, 3997 SDs, 0 SdLazy, 5173 SolverSat, 1058 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 3290 GetRequests, 2881 SyntacticMatches, 66 SemanticMatches, 343 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2413 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3579occurred in iteration=21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 13.8s AbstIntTime, 13 AbstIntIterations, 1 AbstIntStrong, 0.9787581699346404 AbsIntWeakeningRatio, 1.08 AbsIntAvgWeakeningVarsNumRemoved, 9.36 AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 21 MinimizatonAttempts, 4421 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 2368 NumberOfCodeBlocks, 2368 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 3764 ConstructedInterpolants, 0 QuantifiedInterpolants, 583009 SizeOfPredicates, 120 NumberOfNonLiveVariables, 11052 ConjunctsInSsa, 268 ConjunctsInUnsatCore, 63 InterpolantComputations, 11 PerfectInterpolantSequences, 4580/4999 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-0-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-1-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-1-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-2-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-2-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-3-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-3-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-4-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-4-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-5-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-5-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-6-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-6-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-7-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-7-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-8-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-8-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-9-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-9-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-10-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-10-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-11-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-11-2018-01-24_16-58-37-382.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.1_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_16-58-37-382.csv Completed graceful shutdown