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_Fixed_noBitfields+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/loop-acceleration/array3_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cf7e2d-m [2018-03-29 21:47:26,026 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-29 21:47:26,028 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-29 21:47:26,042 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-29 21:47:26,042 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-29 21:47:26,043 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-29 21:47:26,044 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-29 21:47:26,045 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-29 21:47:26,048 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-29 21:47:26,049 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-29 21:47:26,050 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-29 21:47:26,050 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-29 21:47:26,051 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-29 21:47:26,052 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-29 21:47:26,053 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-29 21:47:26,055 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-29 21:47:26,058 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-29 21:47:26,059 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-29 21:47:26,061 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-29 21:47:26,062 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-29 21:47:26,065 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-03-29 21:47:26,071 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-29 21:47:26,072 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-29 21:47:26,072 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-03-29 21:47:26,098 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-29 21:47:26,098 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-29 21:47:26,098 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-03-29 21:47:26,099 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-03-29 21:47:26,099 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-29 21:47:26,099 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-29 21:47:26,099 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-29 21:47:26,099 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-29 21:47:26,100 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-29 21:47:26,100 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-03-29 21:47:26,100 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-03-29 21:47:26,100 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-29 21:47:26,100 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-29 21:47:26,100 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-29 21:47:26,101 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-29 21:47:26,101 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-29 21:47:26,101 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-29 21:47:26,101 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-29 21:47:26,101 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-29 21:47:26,101 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-29 21:47:26,101 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-29 21:47:26,102 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-29 21:47:26,102 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-29 21:47:26,102 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-29 21:47:26,102 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-29 21:47:26,102 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-29 21:47:26,103 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-29 21:47:26,103 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-29 21:47:26,103 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-29 21:47:26,103 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-29 21:47:26,103 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-29 21:47:26,103 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:47:26,103 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-29 21:47:26,104 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-29 21:47:26,105 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-29 21:47:26,105 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-03-29 21:47:26,105 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-03-29 21:47:26,138 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-29 21:47:26,149 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-29 21:47:26,152 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-29 21:47:26,154 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-29 21:47:26,154 INFO L276 PluginConnector]: CDTParser initialized [2018-03-29 21:47:26,155 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/array3_false-valid-deref.i [2018-03-29 21:47:26,468 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG992bff38c [2018-03-29 21:47:26,598 INFO L287 CDTParser]: IsIndexed: true [2018-03-29 21:47:26,598 INFO L288 CDTParser]: Found 1 translation units. [2018-03-29 21:47:26,598 INFO L168 CDTParser]: Scanning array3_false-valid-deref.i [2018-03-29 21:47:26,599 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-29 21:47:26,600 INFO L215 ultiparseSymbolTable]: [2018-03-29 21:47:26,600 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-29 21:47:26,600 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_farray__false_valid_deref_i____VERIFIER_assert ('__VERIFIER_assert') in array3_false-valid-deref.i [2018-03-29 21:47:26,600 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in array3_false-valid-deref.i [2018-03-29 21:47:26,600 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-29 21:47:26,600 INFO L233 ultiparseSymbolTable]: [2018-03-29 21:47:26,616 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG992bff38c [2018-03-29 21:47:26,621 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-29 21:47:26,624 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-29 21:47:26,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-29 21:47:26,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-29 21:47:26,632 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-29 21:47:26,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 09:47:26" (1/1) ... [2018-03-29 21:47:26,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aca3a67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:47:26, skipping insertion in model container [2018-03-29 21:47:26,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 09:47:26" (1/1) ... [2018-03-29 21:47:26,654 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 21:47:26,665 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 21:47:26,807 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 21:47:26,822 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 21:47:26,825 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 6 non ball SCCs. Number of states in SCCs 6. [2018-03-29 21:47:26,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:47:26 WrapperNode [2018-03-29 21:47:26,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-29 21:47:26,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-29 21:47:26,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-29 21:47:26,831 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-29 21:47:26,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:47:26" (1/1) ... [2018-03-29 21:47:26,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:47:26" (1/1) ... [2018-03-29 21:47:26,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:47:26" (1/1) ... [2018-03-29 21:47:26,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:47:26" (1/1) ... [2018-03-29 21:47:26,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:47:26" (1/1) ... [2018-03-29 21:47:26,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:47:26" (1/1) ... [2018-03-29 21:47:26,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:47:26" (1/1) ... [2018-03-29 21:47:26,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-29 21:47:26,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-29 21:47:26,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-29 21:47:26,858 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-29 21:47:26,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:47:26" (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 [2018-03-29 21:47:26,923 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-29 21:47:26,924 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-29 21:47:26,924 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_farray__false_valid_deref_i____VERIFIER_assert [2018-03-29 21:47:26,924 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-29 21:47:26,924 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-03-29 21:47:26,924 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-03-29 21:47:26,925 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_farray__false_valid_deref_i____VERIFIER_assert [2018-03-29 21:47:26,925 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-29 21:47:26,925 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-29 21:47:26,925 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-29 21:47:27,136 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-29 21:47:27,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 09:47:27 BoogieIcfgContainer [2018-03-29 21:47:27,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-29 21:47:27,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-29 21:47:27,137 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-29 21:47:27,140 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-29 21:47:27,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.03 09:47:26" (1/3) ... [2018-03-29 21:47:27,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552ac437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 09:47:27, skipping insertion in model container [2018-03-29 21:47:27,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:47:26" (2/3) ... [2018-03-29 21:47:27,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552ac437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 09:47:27, skipping insertion in model container [2018-03-29 21:47:27,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 09:47:27" (3/3) ... [2018-03-29 21:47:27,143 INFO L107 eAbstractionObserver]: Analyzing ICFG array3_false-valid-deref.i [2018-03-29 21:47:27,151 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-29 21:47:27,157 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-03-29 21:47:27,194 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-29 21:47:27,195 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-29 21:47:27,195 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-29 21:47:27,195 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-29 21:47:27,195 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-29 21:47:27,195 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-29 21:47:27,195 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-29 21:47:27,196 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-29 21:47:27,196 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-29 21:47:27,197 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-29 21:47:27,215 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-03-29 21:47:27,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-03-29 21:47:27,221 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:47:27,222 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:47:27,222 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 21:47:27,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1014533304, now seen corresponding path program 1 times No working directory specified, using /storage/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 [2018-03-29 21:47:27,240 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:47:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:47:27,262 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:47:27,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:47:27,302 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:47:27,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:47:27,340 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 21:47:27,340 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-29 21:47:27,343 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-29 21:47:27,354 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-29 21:47:27,355 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-03-29 21:47:27,356 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 4 states. [2018-03-29 21:47:27,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:47:27,444 INFO L93 Difference]: Finished difference Result 76 states and 95 transitions. [2018-03-29 21:47:27,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-29 21:47:27,446 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-03-29 21:47:27,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:47:27,454 INFO L225 Difference]: With dead ends: 76 [2018-03-29 21:47:27,455 INFO L226 Difference]: Without dead ends: 40 [2018-03-29 21:47:27,458 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-03-29 21:47:27,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-03-29 21:47:27,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 31. [2018-03-29 21:47:27,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-03-29 21:47:27,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2018-03-29 21:47:27,494 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 10 [2018-03-29 21:47:27,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:47:27,495 INFO L459 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2018-03-29 21:47:27,495 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-29 21:47:27,495 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2018-03-29 21:47:27,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-03-29 21:47:27,496 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:47:27,496 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:47:27,496 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 21:47:27,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1385183272, now seen corresponding path program 1 times No working directory specified, using /storage/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 [2018-03-29 21:47:27,505 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:47:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:47:27,517 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:47:27,595 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:47:27,595 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:47:27,659 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:47:27,683 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 21:47:27,683 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-03-29 21:47:27,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-29 21:47:27,685 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-29 21:47:27,686 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-03-29 21:47:27,686 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 9 states. [2018-03-29 21:47:27,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:47:27,841 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2018-03-29 21:47:27,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-03-29 21:47:27,842 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-03-29 21:47:27,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:47:27,843 INFO L225 Difference]: With dead ends: 40 [2018-03-29 21:47:27,843 INFO L226 Difference]: Without dead ends: 39 [2018-03-29 21:47:27,844 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2018-03-29 21:47:27,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-03-29 21:47:27,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 29. [2018-03-29 21:47:27,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-03-29 21:47:27,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2018-03-29 21:47:27,849 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 19 [2018-03-29 21:47:27,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:47:27,850 INFO L459 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2018-03-29 21:47:27,850 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-29 21:47:27,850 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2018-03-29 21:47:27,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-03-29 21:47:27,851 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:47:27,851 INFO L355 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, 1, 1] [2018-03-29 21:47:27,851 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 21:47:27,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1029357923, now seen corresponding path program 1 times No working directory specified, using /storage/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 [2018-03-29 21:47:27,860 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:47:27,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:47:27,873 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:47:27,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:47:27,906 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:47:27,927 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:47:27,947 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:47:27,948 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-03-29 21:47:27,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-03-29 21:47:27,948 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-03-29 21:47:27,948 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-03-29 21:47:27,949 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 8 states. [2018-03-29 21:47:28,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:47:28,067 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2018-03-29 21:47:28,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-03-29 21:47:28,068 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2018-03-29 21:47:28,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:47:28,070 INFO L225 Difference]: With dead ends: 62 [2018-03-29 21:47:28,070 INFO L226 Difference]: Without dead ends: 51 [2018-03-29 21:47:28,070 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2018-03-29 21:47:28,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-03-29 21:47:28,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2018-03-29 21:47:28,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-03-29 21:47:28,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2018-03-29 21:47:28,077 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 28 [2018-03-29 21:47:28,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:47:28,078 INFO L459 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2018-03-29 21:47:28,078 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-03-29 21:47:28,078 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2018-03-29 21:47:28,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-03-29 21:47:28,079 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:47:28,080 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:47:28,080 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 21:47:28,080 INFO L82 PathProgramCache]: Analyzing trace with hash 337492637, now seen corresponding path program 2 times No working directory specified, using /storage/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 [2018-03-29 21:47:28,089 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:47:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:47:28,103 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:47:28,187 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:47:28,187 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:47:28,280 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:47:28,313 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:47:28,313 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2018-03-29 21:47:28,314 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-29 21:47:28,314 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-29 21:47:28,314 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2018-03-29 21:47:28,314 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 16 states. [2018-03-29 21:47:28,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:47:28,606 INFO L93 Difference]: Finished difference Result 98 states and 103 transitions. [2018-03-29 21:47:28,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-03-29 21:47:28,608 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 46 [2018-03-29 21:47:28,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:47:28,609 INFO L225 Difference]: With dead ends: 98 [2018-03-29 21:47:28,609 INFO L226 Difference]: Without dead ends: 87 [2018-03-29 21:47:28,610 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=259, Invalid=497, Unknown=0, NotChecked=0, Total=756 [2018-03-29 21:47:28,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-03-29 21:47:28,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 83. [2018-03-29 21:47:28,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-03-29 21:47:28,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 84 transitions. [2018-03-29 21:47:28,618 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 84 transitions. Word has length 46 [2018-03-29 21:47:28,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:47:28,618 INFO L459 AbstractCegarLoop]: Abstraction has 83 states and 84 transitions. [2018-03-29 21:47:28,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-29 21:47:28,618 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 84 transitions. [2018-03-29 21:47:28,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-03-29 21:47:28,620 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:47:28,620 INFO L355 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:47:28,620 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 21:47:28,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1093029219, now seen corresponding path program 3 times No working directory specified, using /storage/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 [2018-03-29 21:47:28,627 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:47:28,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:47:28,650 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:47:28,825 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 203 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:47:28,825 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:47:29,020 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 203 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:47:29,041 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:47:29,041 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2018-03-29 21:47:29,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-03-29 21:47:29,042 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-03-29 21:47:29,042 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2018-03-29 21:47:29,043 INFO L87 Difference]: Start difference. First operand 83 states and 84 transitions. Second operand 32 states. [2018-03-29 21:47:29,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:47:29,648 INFO L93 Difference]: Finished difference Result 170 states and 179 transitions. [2018-03-29 21:47:29,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-03-29 21:47:29,649 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 82 [2018-03-29 21:47:29,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:47:29,651 INFO L225 Difference]: With dead ends: 170 [2018-03-29 21:47:29,651 INFO L226 Difference]: Without dead ends: 159 [2018-03-29 21:47:29,653 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1155, Invalid=2385, Unknown=0, NotChecked=0, Total=3540 [2018-03-29 21:47:29,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-03-29 21:47:29,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 155. [2018-03-29 21:47:29,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-03-29 21:47:29,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 156 transitions. [2018-03-29 21:47:29,667 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 156 transitions. Word has length 82 [2018-03-29 21:47:29,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:47:29,668 INFO L459 AbstractCegarLoop]: Abstraction has 155 states and 156 transitions. [2018-03-29 21:47:29,668 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-03-29 21:47:29,669 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 156 transitions. [2018-03-29 21:47:29,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-03-29 21:47:29,673 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:47:29,673 INFO L355 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 15, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:47:29,674 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 21:47:29,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1820172957, now seen corresponding path program 4 times No working directory specified, using /storage/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 [2018-03-29 21:47:29,691 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:47:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:47:29,731 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:47:30,073 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 0 proven. 975 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:47:30,073 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:47:30,682 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 0 proven. 975 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:47:30,703 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:47:30,704 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 64 [2018-03-29 21:47:30,704 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-03-29 21:47:30,705 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-03-29 21:47:30,706 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1056, Invalid=2976, Unknown=0, NotChecked=0, Total=4032 [2018-03-29 21:47:30,707 INFO L87 Difference]: Start difference. First operand 155 states and 156 transitions. Second operand 64 states. [2018-03-29 21:47:32,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:47:32,308 INFO L93 Difference]: Finished difference Result 314 states and 331 transitions. [2018-03-29 21:47:32,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2018-03-29 21:47:32,308 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 154 [2018-03-29 21:47:32,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:47:32,311 INFO L225 Difference]: With dead ends: 314 [2018-03-29 21:47:32,311 INFO L226 Difference]: Without dead ends: 303 [2018-03-29 21:47:32,315 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3257 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=4867, Invalid=10385, Unknown=0, NotChecked=0, Total=15252 [2018-03-29 21:47:32,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2018-03-29 21:47:32,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2018-03-29 21:47:32,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2018-03-29 21:47:32,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 300 transitions. [2018-03-29 21:47:32,339 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 300 transitions. Word has length 154 [2018-03-29 21:47:32,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:47:32,340 INFO L459 AbstractCegarLoop]: Abstraction has 299 states and 300 transitions. [2018-03-29 21:47:32,340 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-03-29 21:47:32,340 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 300 transitions. [2018-03-29 21:47:32,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2018-03-29 21:47:32,346 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:47:32,347 INFO L355 BasicCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 31, 31, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:47:32,347 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 21:47:32,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1886749341, now seen corresponding path program 5 times No working directory specified, using /storage/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 [2018-03-29 21:47:32,361 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:47:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:47:32,419 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:47:33,442 INFO L134 CoverageAnalysis]: Checked inductivity of 4249 backedges. 0 proven. 4247 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:47:33,442 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:47:35,736 INFO L134 CoverageAnalysis]: Checked inductivity of 4249 backedges. 0 proven. 4247 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:47:35,758 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:47:35,758 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65] total 128 [2018-03-29 21:47:35,758 INFO L442 AbstractCegarLoop]: Interpolant automaton has 128 states [2018-03-29 21:47:35,759 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2018-03-29 21:47:35,762 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4160, Invalid=12096, Unknown=0, NotChecked=0, Total=16256 [2018-03-29 21:47:35,762 INFO L87 Difference]: Start difference. First operand 299 states and 300 transitions. Second operand 128 states. [2018-03-29 21:47:40,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:47:40,283 INFO L93 Difference]: Finished difference Result 602 states and 635 transitions. [2018-03-29 21:47:40,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2018-03-29 21:47:40,284 INFO L78 Accepts]: Start accepts. Automaton has 128 states. Word has length 298 [2018-03-29 21:47:40,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:47:40,287 INFO L225 Difference]: With dead ends: 602 [2018-03-29 21:47:40,287 INFO L226 Difference]: Without dead ends: 591 [2018-03-29 21:47:40,293 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 719 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 250 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14169 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=19971, Invalid=43281, Unknown=0, NotChecked=0, Total=63252 [2018-03-29 21:47:40,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2018-03-29 21:47:40,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 587. [2018-03-29 21:47:40,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2018-03-29 21:47:40,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 588 transitions. [2018-03-29 21:47:40,316 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 588 transitions. Word has length 298 [2018-03-29 21:47:40,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:47:40,317 INFO L459 AbstractCegarLoop]: Abstraction has 587 states and 588 transitions. [2018-03-29 21:47:40,317 INFO L460 AbstractCegarLoop]: Interpolant automaton has 128 states. [2018-03-29 21:47:40,317 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 588 transitions. [2018-03-29 21:47:40,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2018-03-29 21:47:40,333 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:47:40,333 INFO L355 BasicCegarLoop]: trace histogram [64, 63, 63, 63, 63, 63, 63, 63, 63, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:47:40,333 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 21:47:40,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1529168541, now seen corresponding path program 6 times No working directory specified, using /storage/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 [2018-03-29 21:47:40,342 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:47:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:47:40,448 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:47:44,013 INFO L134 CoverageAnalysis]: Checked inductivity of 17705 backedges. 0 proven. 17703 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:47:44,013 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:47:52,659 INFO L134 CoverageAnalysis]: Checked inductivity of 17705 backedges. 0 proven. 17703 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:47:52,680 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:47:52,681 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129] total 256 [2018-03-29 21:47:52,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 256 states [2018-03-29 21:47:52,684 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 256 interpolants. [2018-03-29 21:47:52,685 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16512, Invalid=48768, Unknown=0, NotChecked=0, Total=65280 [2018-03-29 21:47:52,685 INFO L87 Difference]: Start difference. First operand 587 states and 588 transitions. Second operand 256 states. [2018-03-29 21:48:10,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:48:10,766 INFO L93 Difference]: Finished difference Result 1178 states and 1243 transitions. [2018-03-29 21:48:10,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 381 states. [2018-03-29 21:48:10,766 INFO L78 Accepts]: Start accepts. Automaton has 256 states. Word has length 586 [2018-03-29 21:48:10,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:48:10,771 INFO L225 Difference]: With dead ends: 1178 [2018-03-29 21:48:10,771 INFO L226 Difference]: Without dead ends: 1167 [2018-03-29 21:48:10,776 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1423 GetRequests, 917 SyntacticMatches, 0 SemanticMatches, 506 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59033 ImplicationChecksByTransitivity, 27.6s TimeCoverageRelationStatistics Valid=80899, Invalid=176657, Unknown=0, NotChecked=0, Total=257556 [2018-03-29 21:48:10,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2018-03-29 21:48:10,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 1163. [2018-03-29 21:48:10,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1163 states. [2018-03-29 21:48:10,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1164 transitions. [2018-03-29 21:48:10,814 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1164 transitions. Word has length 586 [2018-03-29 21:48:10,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:48:10,815 INFO L459 AbstractCegarLoop]: Abstraction has 1163 states and 1164 transitions. [2018-03-29 21:48:10,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 256 states. [2018-03-29 21:48:10,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1164 transitions. [2018-03-29 21:48:10,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1163 [2018-03-29 21:48:10,829 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:48:10,829 INFO L355 BasicCegarLoop]: trace histogram [128, 127, 127, 127, 127, 127, 127, 127, 127, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:48:10,829 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 21:48:10,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1148927331, now seen corresponding path program 7 times No working directory specified, using /storage/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 [2018-03-29 21:48:10,839 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:48:11,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:48:11,027 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:48:25,254 INFO L134 CoverageAnalysis]: Checked inductivity of 72265 backedges. 0 proven. 72263 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:48:25,255 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:49:01,625 INFO L134 CoverageAnalysis]: Checked inductivity of 72265 backedges. 0 proven. 72263 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-29 21:49:01,648 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:49:01,648 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [257, 257] total 512 [2018-03-29 21:49:01,651 INFO L442 AbstractCegarLoop]: Interpolant automaton has 512 states [2018-03-29 21:49:01,660 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 512 interpolants. [2018-03-29 21:49:01,666 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65792, Invalid=195840, Unknown=0, NotChecked=0, Total=261632 [2018-03-29 21:49:01,667 INFO L87 Difference]: Start difference. First operand 1163 states and 1164 transitions. Second operand 512 states. Received shutdown request... [2018-03-29 21:49:41,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 453 states. [2018-03-29 21:49:41,417 WARN L519 AbstractCegarLoop]: Verification canceled [2018-03-29 21:49:41,420 WARN L197 ceAbstractionStarter]: Timeout [2018-03-29 21:49:41,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 09:49:41 BoogieIcfgContainer [2018-03-29 21:49:41,420 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-29 21:49:41,421 INFO L168 Benchmark]: Toolchain (without parser) took 134799.56 ms. Allocated memory was 307.8 MB in the beginning and 1.7 GB in the end (delta: 1.4 GB). Free memory was 249.3 MB in the beginning and 688.6 MB in the end (delta: -439.3 MB). Peak memory consumption was 916.0 MB. Max. memory is 5.3 GB. [2018-03-29 21:49:41,422 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 307.8 MB. Free memory is still 270.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-29 21:49:41,422 INFO L168 Benchmark]: CACSL2BoogieTranslator took 205.08 ms. Allocated memory is still 307.8 MB. Free memory was 249.3 MB in the beginning and 240.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 5.3 GB. [2018-03-29 21:49:41,422 INFO L168 Benchmark]: Boogie Preprocessor took 26.82 ms. Allocated memory is still 307.8 MB. Free memory was 240.3 MB in the beginning and 238.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-03-29 21:49:41,423 INFO L168 Benchmark]: RCFGBuilder took 278.93 ms. Allocated memory was 307.8 MB in the beginning and 469.2 MB in the end (delta: 161.5 MB). Free memory was 238.3 MB in the beginning and 440.5 MB in the end (delta: -202.1 MB). Peak memory consumption was 23.2 MB. Max. memory is 5.3 GB. [2018-03-29 21:49:41,423 INFO L168 Benchmark]: TraceAbstraction took 134282.73 ms. Allocated memory was 469.2 MB in the beginning and 1.7 GB in the end (delta: 1.2 GB). Free memory was 439.2 MB in the beginning and 688.6 MB in the end (delta: -249.4 MB). Peak memory consumption was 944.4 MB. Max. memory is 5.3 GB. [2018-03-29 21:49:41,425 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 307.8 MB. Free memory is still 270.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 205.08 ms. Allocated memory is still 307.8 MB. Free memory was 249.3 MB in the beginning and 240.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 26.82 ms. Allocated memory is still 307.8 MB. Free memory was 240.3 MB in the beginning and 238.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 278.93 ms. Allocated memory was 307.8 MB in the beginning and 469.2 MB in the end (delta: 161.5 MB). Free memory was 238.3 MB in the beginning and 440.5 MB in the end (delta: -202.1 MB). Peak memory consumption was 23.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 134282.73 ms. Allocated memory was 469.2 MB in the beginning and 1.7 GB in the end (delta: 1.2 GB). Free memory was 439.2 MB in the beginning and 688.6 MB in the end (delta: -249.4 MB). Peak memory consumption was 944.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 15]: Timeout (TraceAbstraction) Unable to prove that array index is always in bounds (line 15). Cancelled while BasicCegarLoop was constructing difference of abstraction (1163states) and interpolant automaton (currently 453 states, 512 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 812 known predicates. - TimeoutResultAtElement [Line: 13]: Timeout (TraceAbstraction) Unable to prove that array index is always in bounds (line 13). Cancelled while BasicCegarLoop was constructing difference of abstraction (1163states) and interpolant automaton (currently 453 states, 512 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 812 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 36 locations, 2 error locations. TIMEOUT Result, 134.2s OverallTime, 9 OverallIterations, 128 TraceHistogramMax, 65.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 181 SDtfs, 4838 SDslu, 2563 SDs, 0 SdLazy, 2727 SolverSat, 2635 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5545 GetRequests, 3748 SyntacticMatches, 2 SemanticMatches, 1794 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203593 ImplicationChecksByTransitivity, 113.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1163occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 43 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 67.9s InterpolantComputationTime, 2385 NumberOfCodeBlocks, 2385 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 4752 ConstructedInterpolants, 0 QuantifiedInterpolants, 10718424 SizeOfPredicates, 503 NumberOfNonLiveVariables, 3213 ConjunctsInSsa, 516 ConjunctsInUnsatCore, 18 InterpolantComputations, 4 PerfectInterpolantSequences, 34/190886 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: 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/array3_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-29_21-49-41-433.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/array3_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-03-29_21-49-41-433.csv Completed graceful shutdown