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/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test18_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:52:05,187 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:52:05,188 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:52:05,197 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:52:05,197 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:52:05,198 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:52:05,199 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:52:05,200 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:52:05,202 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:52:05,203 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:52:05,204 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:52:05,204 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:52:05,205 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:52:05,206 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:52:05,207 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:52:05,209 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:52:05,210 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:52:05,212 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:52:05,213 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:52:05,214 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:52:05,216 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 04:52:05,220 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:52:05,220 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:52:05,220 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-02-04 04:52:05,230 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:52:05,230 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:52:05,231 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:52:05,231 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:52:05,232 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:52:05,232 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:52:05,232 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:52:05,232 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:52:05,232 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:52:05,232 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:52:05,232 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:52:05,233 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:52:05,233 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:52:05,233 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:52:05,233 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:52:05,233 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:52:05,233 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:52:05,233 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:52:05,234 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:52:05,234 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:52:05,234 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:52:05,234 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:52:05,234 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 04:52:05,234 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 04:52:05,234 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:52:05,262 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:52:05,269 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:52:05,272 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:52:05,273 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:52:05,274 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:52:05,274 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test18_true-valid-memsafety_true-termination.i [2018-02-04 04:52:05,420 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:52:05,420 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:52:05,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:52:05,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:52:05,425 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:52:05,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:52:05" (1/1) ... [2018-02-04 04:52:05,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9f4e9ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:05, skipping insertion in model container [2018-02-04 04:52:05,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:52:05" (1/1) ... [2018-02-04 04:52:05,438 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:52:05,471 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:52:05,554 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:52:05,568 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:52:05,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:05 WrapperNode [2018-02-04 04:52:05,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:52:05,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:52:05,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:52:05,573 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:52:05,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:05" (1/1) ... [2018-02-04 04:52:05,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:05" (1/1) ... [2018-02-04 04:52:05,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:05" (1/1) ... [2018-02-04 04:52:05,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:05" (1/1) ... [2018-02-04 04:52:05,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:05" (1/1) ... [2018-02-04 04:52:05,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:05" (1/1) ... [2018-02-04 04:52:05,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:05" (1/1) ... [2018-02-04 04:52:05,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:52:05,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:52:05,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:52:05,595 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:52:05,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:05" (1/1) ... No working directory specified, using /home/ultimate/work/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 [2018-02-04 04:52:05,630 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:52:05,630 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:52:05,630 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-04 04:52:05,630 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-04 04:52:05,630 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:52:05,631 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 04:52:05,631 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 04:52:05,631 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:52:05,631 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:52:05,631 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:52:05,631 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 04:52:05,631 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 04:52:05,631 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:52:05,631 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-04 04:52:05,631 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-04 04:52:05,631 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:52:05,631 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:52:05,631 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:52:05,786 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:52:05,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:52:05 BoogieIcfgContainer [2018-02-04 04:52:05,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:52:05,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:52:05,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:52:05,789 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:52:05,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:52:05" (1/3) ... [2018-02-04 04:52:05,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d59de9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:52:05, skipping insertion in model container [2018-02-04 04:52:05,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:52:05" (2/3) ... [2018-02-04 04:52:05,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d59de9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:52:05, skipping insertion in model container [2018-02-04 04:52:05,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:52:05" (3/3) ... [2018-02-04 04:52:05,791 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test18_true-valid-memsafety_true-termination.i [2018-02-04 04:52:05,796 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:52:05,801 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-02-04 04:52:05,834 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:52:05,834 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:52:05,834 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 04:52:05,834 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 04:52:05,834 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:52:05,834 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:52:05,834 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:52:05,835 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:52:05,835 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:52:05,847 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-02-04 04:52:05,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-04 04:52:05,855 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:52:05,856 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:52:05,856 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 04:52:05,860 INFO L82 PathProgramCache]: Analyzing trace with hash 932191006, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:52:05,869 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:52:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:05,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:06,010 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:52:06,010 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:52:06,011 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:52:06,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:06,012 INFO L182 omatonBuilderFactory]: Interpolants [49#true, 65#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 50#false, 66#(and (= |#valid| |old(#valid)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)), 54#(= |#valid| |old(#valid)|), 71#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|))] [2018-02-04 04:52:06,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:06,013 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:52:06,020 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:52:06,020 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:52:06,022 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 6 states. [2018-02-04 04:52:06,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:52:06,268 INFO L93 Difference]: Finished difference Result 95 states and 112 transitions. [2018-02-04 04:52:06,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:52:06,270 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-02-04 04:52:06,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:52:06,280 INFO L225 Difference]: With dead ends: 95 [2018-02-04 04:52:06,280 INFO L226 Difference]: Without dead ends: 88 [2018-02-04 04:52:06,281 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-02-04 04:52:06,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-02-04 04:52:06,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 47. [2018-02-04 04:52:06,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-02-04 04:52:06,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2018-02-04 04:52:06,371 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 17 [2018-02-04 04:52:06,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:52:06,371 INFO L432 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2018-02-04 04:52:06,371 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:52:06,371 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2018-02-04 04:52:06,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 04:52:06,372 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:52:06,372 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:52:06,372 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 04:52:06,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1509814464, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:52:06,375 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:52:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:06,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:06,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:06,465 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:52:06,465 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-02-04 04:52:06,465 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:52:06,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:06,466 INFO L182 omatonBuilderFactory]: Interpolants [243#(not (= 0 |entry_point_#t~ret2.base|)), 244#(not (= 0 entry_point_~array~0.base)), 245#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 246#(not (= 0 |ldv_malloc_#t~malloc1.base|)), 247#(not (= 0 |ldv_malloc_#res.base|)), 218#true, 219#false, 235#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 236#(and (= |#valid| |old(#valid)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))] [2018-02-04 04:52:06,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:06,467 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-04 04:52:06,467 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-04 04:52:06,467 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-02-04 04:52:06,467 INFO L87 Difference]: Start difference. First operand 47 states and 53 transitions. Second operand 9 states. [2018-02-04 04:52:06,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:52:06,768 INFO L93 Difference]: Finished difference Result 112 states and 133 transitions. [2018-02-04 04:52:06,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-04 04:52:06,769 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-02-04 04:52:06,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:52:06,770 INFO L225 Difference]: With dead ends: 112 [2018-02-04 04:52:06,770 INFO L226 Difference]: Without dead ends: 112 [2018-02-04 04:52:06,771 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-02-04 04:52:06,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-02-04 04:52:06,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 43. [2018-02-04 04:52:06,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-02-04 04:52:06,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2018-02-04 04:52:06,778 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 19 [2018-02-04 04:52:06,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:52:06,778 INFO L432 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2018-02-04 04:52:06,778 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-04 04:52:06,778 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2018-02-04 04:52:06,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 04:52:06,779 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:52:06,779 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:52:06,779 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 04:52:06,779 INFO L82 PathProgramCache]: Analyzing trace with hash 179879494, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:52:06,783 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:52:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:06,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:06,837 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:52:06,838 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 04:52:06,838 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:52:06,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:06,838 INFO L182 omatonBuilderFactory]: Interpolants [423#(= 0 |entry_point_#t~ret2.offset|), 424#(= 0 entry_point_~array~0.offset), 425#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 426#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 427#(= 0 |ldv_malloc_#res.offset|), 414#true, 415#false] [2018-02-04 04:52:06,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:06,838 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 04:52:06,839 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 04:52:06,839 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 04:52:06,839 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand 7 states. [2018-02-04 04:52:07,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:52:07,020 INFO L93 Difference]: Finished difference Result 89 states and 104 transitions. [2018-02-04 04:52:07,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 04:52:07,021 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-02-04 04:52:07,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:52:07,022 INFO L225 Difference]: With dead ends: 89 [2018-02-04 04:52:07,022 INFO L226 Difference]: Without dead ends: 89 [2018-02-04 04:52:07,022 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-02-04 04:52:07,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-02-04 04:52:07,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 62. [2018-02-04 04:52:07,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-02-04 04:52:07,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 79 transitions. [2018-02-04 04:52:07,028 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 79 transitions. Word has length 20 [2018-02-04 04:52:07,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:52:07,028 INFO L432 AbstractCegarLoop]: Abstraction has 62 states and 79 transitions. [2018-02-04 04:52:07,028 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 04:52:07,028 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 79 transitions. [2018-02-04 04:52:07,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 04:52:07,029 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:52:07,029 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:52:07,029 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 04:52:07,029 INFO L82 PathProgramCache]: Analyzing trace with hash 179879495, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:52:07,033 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:52:07,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:07,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:07,098 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:52:07,098 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 04:52:07,098 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:52:07,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:07,099 INFO L182 omatonBuilderFactory]: Interpolants [597#(= 0 |entry_point_#t~ret2.base|), 598#(= 0 entry_point_~array~0.base), 599#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 600#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 601#(= 0 |ldv_malloc_#res.base|), 588#true, 589#false] [2018-02-04 04:52:07,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:07,099 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 04:52:07,099 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 04:52:07,099 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 04:52:07,099 INFO L87 Difference]: Start difference. First operand 62 states and 79 transitions. Second operand 7 states. [2018-02-04 04:52:07,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:52:07,255 INFO L93 Difference]: Finished difference Result 92 states and 106 transitions. [2018-02-04 04:52:07,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 04:52:07,256 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-02-04 04:52:07,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:52:07,256 INFO L225 Difference]: With dead ends: 92 [2018-02-04 04:52:07,257 INFO L226 Difference]: Without dead ends: 88 [2018-02-04 04:52:07,257 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-02-04 04:52:07,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-02-04 04:52:07,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 72. [2018-02-04 04:52:07,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-02-04 04:52:07,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 94 transitions. [2018-02-04 04:52:07,260 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 94 transitions. Word has length 20 [2018-02-04 04:52:07,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:52:07,261 INFO L432 AbstractCegarLoop]: Abstraction has 72 states and 94 transitions. [2018-02-04 04:52:07,261 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 04:52:07,261 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 94 transitions. [2018-02-04 04:52:07,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 04:52:07,261 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:52:07,261 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:52:07,261 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 04:52:07,261 INFO L82 PathProgramCache]: Analyzing trace with hash 179879544, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:52:07,264 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:52:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:07,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:07,313 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:52:07,313 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 04:52:07,313 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:52:07,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:07,313 INFO L182 omatonBuilderFactory]: Interpolants [784#(= 0 entry_point_~i~0), 785#(< entry_point_~j~0 0), 786#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 787#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 775#true, 776#false] [2018-02-04 04:52:07,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:07,314 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:52:07,314 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:52:07,314 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:52:07,314 INFO L87 Difference]: Start difference. First operand 72 states and 94 transitions. Second operand 6 states. [2018-02-04 04:52:07,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:52:07,411 INFO L93 Difference]: Finished difference Result 117 states and 147 transitions. [2018-02-04 04:52:07,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 04:52:07,412 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-02-04 04:52:07,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:52:07,412 INFO L225 Difference]: With dead ends: 117 [2018-02-04 04:52:07,412 INFO L226 Difference]: Without dead ends: 114 [2018-02-04 04:52:07,413 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-02-04 04:52:07,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-02-04 04:52:07,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 90. [2018-02-04 04:52:07,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-02-04 04:52:07,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 119 transitions. [2018-02-04 04:52:07,417 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 119 transitions. Word has length 20 [2018-02-04 04:52:07,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:52:07,417 INFO L432 AbstractCegarLoop]: Abstraction has 90 states and 119 transitions. [2018-02-04 04:52:07,417 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:52:07,417 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 119 transitions. [2018-02-04 04:52:07,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 04:52:07,418 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:52:07,418 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:52:07,418 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 04:52:07,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1773638300, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:52:07,422 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:52:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:07,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:07,496 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:52:07,497 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 04:52:07,497 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:52:07,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:07,497 INFO L182 omatonBuilderFactory]: Interpolants [1015#(= 0 |entry_point_#t~ret2.offset|), 1016#(= 0 entry_point_~array~0.offset), 1017#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 1018#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 1019#(= 0 |ldv_malloc_#t~malloc1.offset|), 1004#true, 1020#(= 0 |ldv_malloc_#res.offset|), 1005#false] [2018-02-04 04:52:07,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:07,497 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 04:52:07,497 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 04:52:07,497 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-02-04 04:52:07,498 INFO L87 Difference]: Start difference. First operand 90 states and 119 transitions. Second operand 8 states. [2018-02-04 04:52:07,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:52:07,624 INFO L93 Difference]: Finished difference Result 97 states and 124 transitions. [2018-02-04 04:52:07,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-04 04:52:07,624 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2018-02-04 04:52:07,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:52:07,625 INFO L225 Difference]: With dead ends: 97 [2018-02-04 04:52:07,625 INFO L226 Difference]: Without dead ends: 97 [2018-02-04 04:52:07,625 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-02-04 04:52:07,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-02-04 04:52:07,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 89. [2018-02-04 04:52:07,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-02-04 04:52:07,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 118 transitions. [2018-02-04 04:52:07,632 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 118 transitions. Word has length 22 [2018-02-04 04:52:07,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:52:07,632 INFO L432 AbstractCegarLoop]: Abstraction has 89 states and 118 transitions. [2018-02-04 04:52:07,632 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 04:52:07,633 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 118 transitions. [2018-02-04 04:52:07,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 04:52:07,633 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:52:07,633 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:52:07,633 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 04:52:07,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1773638299, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:52:07,637 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:52:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:07,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:07,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:07,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:07,681 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:52:07,681 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 04:52:07,681 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:52:07,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:07,681 INFO L182 omatonBuilderFactory]: Interpolants [1232#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 1218#true, 1219#false, 1223#(= entry_point_~len~0 10), 1230#(< entry_point_~i~0 entry_point_~len~0), 1231#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:52:07,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:52:07,681 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:52:07,681 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:52:07,682 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:52:07,682 INFO L87 Difference]: Start difference. First operand 89 states and 118 transitions. Second operand 6 states. [2018-02-04 04:52:07,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:52:07,828 INFO L93 Difference]: Finished difference Result 129 states and 161 transitions. [2018-02-04 04:52:07,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 04:52:07,829 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-02-04 04:52:07,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:52:07,830 INFO L225 Difference]: With dead ends: 129 [2018-02-04 04:52:07,830 INFO L226 Difference]: Without dead ends: 129 [2018-02-04 04:52:07,830 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-02-04 04:52:07,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-02-04 04:52:07,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 89. [2018-02-04 04:52:07,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-02-04 04:52:07,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 117 transitions. [2018-02-04 04:52:07,847 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 117 transitions. Word has length 22 [2018-02-04 04:52:07,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:52:07,847 INFO L432 AbstractCegarLoop]: Abstraction has 89 states and 117 transitions. [2018-02-04 04:52:07,848 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:52:07,848 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 117 transitions. [2018-02-04 04:52:07,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-02-04 04:52:07,848 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:52:07,848 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:52:07,848 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 04:52:07,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1884968333, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:52:07,854 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:52:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:07,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:07,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:07,908 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 04:52:07,925 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:52:07,925 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 04:52:07,925 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:52:07,925 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 04:52:07,925 INFO L182 omatonBuilderFactory]: Interpolants [1473#(and (= 0 |entry_point_#t~ret4.base|) (= 0 |entry_point_#t~ret4.offset|)), 1474#(and (= entry_point_~p~0.offset 0) (= entry_point_~p~0.base 0)), 1475#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 1460#true, 1476#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 1461#false, 1477#(and (= 0 |ldv_malloc_#res.offset|) (= 0 |ldv_malloc_#res.base|))] [2018-02-04 04:52:07,925 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 04:52:07,926 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 04:52:07,926 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 04:52:07,926 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 04:52:07,926 INFO L87 Difference]: Start difference. First operand 89 states and 117 transitions. Second operand 7 states. [2018-02-04 04:52:08,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:52:08,043 INFO L93 Difference]: Finished difference Result 108 states and 135 transitions. [2018-02-04 04:52:08,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 04:52:08,043 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-02-04 04:52:08,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:52:08,044 INFO L225 Difference]: With dead ends: 108 [2018-02-04 04:52:08,044 INFO L226 Difference]: Without dead ends: 106 [2018-02-04 04:52:08,044 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-02-04 04:52:08,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-02-04 04:52:08,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 83. [2018-02-04 04:52:08,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-02-04 04:52:08,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 104 transitions. [2018-02-04 04:52:08,048 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 104 transitions. Word has length 24 [2018-02-04 04:52:08,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:52:08,048 INFO L432 AbstractCegarLoop]: Abstraction has 83 states and 104 transitions. [2018-02-04 04:52:08,048 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 04:52:08,048 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 104 transitions. [2018-02-04 04:52:08,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-02-04 04:52:08,049 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:52:08,049 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:52:08,049 INFO L371 AbstractCegarLoop]: === Iteration 9 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 04:52:08,049 INFO L82 PathProgramCache]: Analyzing trace with hash -474114859, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:52:08,051 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:52:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:08,096 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 04:52:08,113 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 04:52:08,113 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-02-04 04:52:08,113 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:52:08,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 04:52:08,114 INFO L182 omatonBuilderFactory]: Interpolants [1696#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 1697#(and (= 0 |ldv_malloc_#res.offset|) (= 0 |ldv_malloc_#res.base|)), 1687#(and (= 0 |entry_point_#t~ret2.offset|) (= 0 |entry_point_#t~ret2.base|)), 1688#(and (= entry_point_~array~0.base 0) (= entry_point_~array~0.offset 0)), 1678#true, 1679#false, 1695#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:52:08,114 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-02-04 04:52:08,114 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 04:52:08,114 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 04:52:08,115 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 04:52:08,115 INFO L87 Difference]: Start difference. First operand 83 states and 104 transitions. Second operand 7 states. [2018-02-04 04:52:08,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:52:08,192 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2018-02-04 04:52:08,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:52:08,193 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-02-04 04:52:08,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:52:08,193 INFO L225 Difference]: With dead ends: 58 [2018-02-04 04:52:08,193 INFO L226 Difference]: Without dead ends: 56 [2018-02-04 04:52:08,194 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-02-04 04:52:08,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-02-04 04:52:08,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-02-04 04:52:08,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-02-04 04:52:08,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2018-02-04 04:52:08,196 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 26 [2018-02-04 04:52:08,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:52:08,196 INFO L432 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2018-02-04 04:52:08,197 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 04:52:08,197 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2018-02-04 04:52:08,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-02-04 04:52:08,197 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:52:08,197 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:52:08,198 INFO L371 AbstractCegarLoop]: === Iteration 10 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 04:52:08,198 INFO L82 PathProgramCache]: Analyzing trace with hash -578226829, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:52:08,200 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:52:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:08,226 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier [2018-02-04 04:52:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:08,263 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:52:08,264 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-02-04 04:52:08,268 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:52:08,268 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-04 04:52:08,268 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:52:08,268 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-02-04 04:52:08,268 INFO L182 omatonBuilderFactory]: Interpolants [1841#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 1842#(and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)), 1843#(= |#valid| |old(#valid)|), 1844#(= |#valid| (store |old(#valid)| |ldv_malloc_#t~malloc1.base| 1)), 1845#(= |#valid| (store |old(#valid)| |ldv_malloc_#res.base| 1)), 1833#(= 1 (select |#valid| |entry_point_#t~ret2.base|)), 1834#(= 1 (select |#valid| entry_point_~array~0.base)), 1822#true, 1823#false] [2018-02-04 04:52:08,268 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-02-04 04:52:08,269 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-04 04:52:08,269 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-04 04:52:08,269 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-02-04 04:52:08,269 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand 9 states. [2018-02-04 04:52:08,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:52:08,366 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2018-02-04 04:52:08,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 04:52:08,366 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-02-04 04:52:08,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:52:08,366 INFO L225 Difference]: With dead ends: 60 [2018-02-04 04:52:08,366 INFO L226 Difference]: Without dead ends: 60 [2018-02-04 04:52:08,367 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-02-04 04:52:08,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-02-04 04:52:08,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 59. [2018-02-04 04:52:08,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-02-04 04:52:08,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 68 transitions. [2018-02-04 04:52:08,368 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 68 transitions. Word has length 28 [2018-02-04 04:52:08,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:52:08,369 INFO L432 AbstractCegarLoop]: Abstraction has 59 states and 68 transitions. [2018-02-04 04:52:08,369 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-04 04:52:08,369 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 68 transitions. [2018-02-04 04:52:08,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-02-04 04:52:08,369 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:52:08,369 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:52:08,369 INFO L371 AbstractCegarLoop]: === Iteration 11 === [mainErr0EnsuresViolation, entry_pointErr7RequiresViolation, entry_pointErr5RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr3RequiresViolation]=== [2018-02-04 04:52:08,370 INFO L82 PathProgramCache]: Analyzing trace with hash -578226828, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:52:08,376 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:52:08,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:52:08,405 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier Unsupported proof rule: (let ((a!1 (= (+ 0 0 (* (- 1) (select |#length_21| |ldv_malloc_#t~malloc1.base_10|))) (* (- 1) (select |#length_21| |ldv_malloc_#t~malloc1.base_10|))))) (rewrite a!1)) [2018-02-04 04:52:08,406 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 140 column 591: theory not supported by interpolation or bad proof at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1420) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseInterpolants(Executor.java:255) at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.readInterpolants(ScriptorWithGetInterpolants.java:136) at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.getInterpolants(ScriptorWithGetInterpolants.java:64) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.getInterpolants(DiffWrapperScript.java:260) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:186) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:196) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedTraceAbstractionRefinementStrategy.getTraceCheck(FixedTraceAbstractionRefinementStrategy.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:397) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-02-04 04:52:08,408 INFO L168 Benchmark]: Toolchain (without parser) took 2988.30 ms. Allocated memory was 396.9 MB in the beginning and 665.3 MB in the end (delta: 268.4 MB). Free memory was 353.8 MB in the beginning and 527.5 MB in the end (delta: -173.7 MB). Peak memory consumption was 94.7 MB. Max. memory is 5.3 GB. [2018-02-04 04:52:08,409 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 396.9 MB. Free memory is still 360.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:52:08,409 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.77 ms. Allocated memory is still 396.9 MB. Free memory was 353.8 MB in the beginning and 340.5 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. [2018-02-04 04:52:08,410 INFO L168 Benchmark]: Boogie Preprocessor took 21.85 ms. Allocated memory is still 396.9 MB. Free memory was 340.5 MB in the beginning and 339.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:52:08,410 INFO L168 Benchmark]: RCFGBuilder took 191.72 ms. Allocated memory is still 396.9 MB. Free memory was 339.2 MB in the beginning and 321.2 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 5.3 GB. [2018-02-04 04:52:08,410 INFO L168 Benchmark]: TraceAbstraction took 2620.53 ms. Allocated memory was 396.9 MB in the beginning and 665.3 MB in the end (delta: 268.4 MB). Free memory was 319.9 MB in the beginning and 527.5 MB in the end (delta: -207.6 MB). Peak memory consumption was 60.8 MB. Max. memory is 5.3 GB. [2018-02-04 04:52:08,412 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 396.9 MB. Free memory is still 360.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 151.77 ms. Allocated memory is still 396.9 MB. Free memory was 353.8 MB in the beginning and 340.5 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 21.85 ms. Allocated memory is still 396.9 MB. Free memory was 340.5 MB in the beginning and 339.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 191.72 ms. Allocated memory is still 396.9 MB. Free memory was 339.2 MB in the beginning and 321.2 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2620.53 ms. Allocated memory was 396.9 MB in the beginning and 665.3 MB in the end (delta: 268.4 MB). Free memory was 319.9 MB in the beginning and 527.5 MB in the end (delta: -207.6 MB). Peak memory consumption was 60.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 140 column 591: theory not supported by interpolation or bad proof de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 140 column 591: theory not supported by interpolation or bad proof: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1420) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test18_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-52-08-420.csv Received shutdown request...