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 0.1.23-8168ed2-m [2018-04-12 00:24:21,690 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-12 00:24:21,692 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-12 00:24:21,707 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-12 00:24:21,708 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-12 00:24:21,709 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-12 00:24:21,710 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-12 00:24:21,712 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-12 00:24:21,714 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-12 00:24:21,715 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-12 00:24:21,715 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-12 00:24:21,716 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-12 00:24:21,717 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-12 00:24:21,718 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-12 00:24:21,719 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-12 00:24:21,721 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-12 00:24:21,723 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-12 00:24:21,725 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-12 00:24:21,726 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-12 00:24:21,727 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-12 00:24:21,729 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-12 00:24:21,736 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 [2018-04-12 00:24:21,760 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-12 00:24:21,760 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-12 00:24:21,760 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-12 00:24:21,761 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-12 00:24:21,761 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-12 00:24:21,762 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-12 00:24:21,762 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-12 00:24:21,762 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-12 00:24:21,762 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-04-12 00:24:21,762 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-12 00:24:21,763 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-12 00:24:21,763 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-12 00:24:21,763 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-12 00:24:21,763 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-12 00:24:21,764 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-12 00:24:21,764 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-12 00:24:21,764 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-12 00:24:21,764 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-12 00:24:21,764 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-12 00:24:21,764 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-12 00:24:21,765 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-12 00:24:21,765 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-12 00:24:21,765 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-12 00:24:21,765 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-12 00:24:21,765 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-12 00:24:21,766 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-12 00:24:21,766 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-12 00:24:21,766 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-12 00:24:21,766 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-12 00:24:21,766 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-12 00:24:21,767 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-12 00:24:21,767 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-12 00:24:21,767 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-12 00:24:21,767 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-12 00:24:21,768 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-12 00:24:21,768 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-12 00:24:21,768 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-12 00:24:21,769 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-12 00:24:21,802 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-12 00:24:21,815 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-12 00:24:21,819 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-12 00:24:21,821 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-12 00:24:21,821 INFO L276 PluginConnector]: CDTParser initialized [2018-04-12 00:24:21,822 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/array3_false-valid-deref.i [2018-04-12 00:24:22,172 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGdfb4cbe4e [2018-04-12 00:24:22,283 INFO L287 CDTParser]: IsIndexed: true [2018-04-12 00:24:22,284 INFO L288 CDTParser]: Found 1 translation units. [2018-04-12 00:24:22,284 INFO L168 CDTParser]: Scanning array3_false-valid-deref.i [2018-04-12 00:24:22,285 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-12 00:24:22,286 INFO L215 ultiparseSymbolTable]: [2018-04-12 00:24:22,286 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-12 00:24:22,286 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_farray__false_valid_deref_i____VERIFIER_assert ('__VERIFIER_assert') in array3_false-valid-deref.i [2018-04-12 00:24:22,286 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in array3_false-valid-deref.i [2018-04-12 00:24:22,286 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-12 00:24:22,287 INFO L233 ultiparseSymbolTable]: [2018-04-12 00:24:22,301 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGdfb4cbe4e [2018-04-12 00:24:22,306 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-12 00:24:22,309 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-12 00:24:22,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-12 00:24:22,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-12 00:24:22,317 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-12 00:24:22,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.04 12:24:22" (1/1) ... [2018-04-12 00:24:22,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b79a243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 12:24:22, skipping insertion in model container [2018-04-12 00:24:22,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.04 12:24:22" (1/1) ... [2018-04-12 00:24:22,336 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-12 00:24:22,348 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-12 00:24:22,482 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-12 00:24:22,497 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-12 00:24:22,502 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 6 non ball SCCs. Number of states in SCCs 6. [2018-04-12 00:24:22,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 12:24:22 WrapperNode [2018-04-12 00:24:22,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-12 00:24:22,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-12 00:24:22,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-12 00:24:22,508 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-12 00:24:22,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 12:24:22" (1/1) ... [2018-04-12 00:24:22,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 12:24:22" (1/1) ... [2018-04-12 00:24:22,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 12:24:22" (1/1) ... [2018-04-12 00:24:22,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 12:24:22" (1/1) ... [2018-04-12 00:24:22,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 12:24:22" (1/1) ... [2018-04-12 00:24:22,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 12:24:22" (1/1) ... [2018-04-12 00:24:22,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 12:24:22" (1/1) ... [2018-04-12 00:24:22,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-12 00:24:22,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-12 00:24:22,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-12 00:24:22,532 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-12 00:24:22,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 12:24:22" (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 [2018-04-12 00:24:22,587 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-12 00:24:22,588 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-12 00:24:22,588 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_farray__false_valid_deref_i____VERIFIER_assert [2018-04-12 00:24:22,588 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-12 00:24:22,588 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-12 00:24:22,588 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-12 00:24:22,588 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_farray__false_valid_deref_i____VERIFIER_assert [2018-04-12 00:24:22,588 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-12 00:24:22,589 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-12 00:24:22,589 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-12 00:24:22,801 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-12 00:24:22,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.04 12:24:22 BoogieIcfgContainer [2018-04-12 00:24:22,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-12 00:24:22,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-12 00:24:22,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-12 00:24:22,807 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-12 00:24:22,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.04 12:24:22" (1/3) ... [2018-04-12 00:24:22,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4760aaf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.04 12:24:22, skipping insertion in model container [2018-04-12 00:24:22,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 12:24:22" (2/3) ... [2018-04-12 00:24:22,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4760aaf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.04 12:24:22, skipping insertion in model container [2018-04-12 00:24:22,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.04 12:24:22" (3/3) ... [2018-04-12 00:24:22,810 INFO L107 eAbstractionObserver]: Analyzing ICFG array3_false-valid-deref.i [2018-04-12 00:24:22,820 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-12 00:24:22,828 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-04-12 00:24:22,868 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-12 00:24:22,869 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-12 00:24:22,869 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-12 00:24:22,869 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-12 00:24:22,869 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-12 00:24:22,869 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-12 00:24:22,870 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-12 00:24:22,870 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-12 00:24:22,870 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-12 00:24:22,871 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-12 00:24:22,888 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-04-12 00:24:22,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-04-12 00:24:22,895 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 00:24:22,896 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 00:24:22,897 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 00:24:22,902 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 [2018-04-12 00:24:22,919 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 00:24:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 00:24:22,941 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 00:24:22,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 00:24:22,980 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 00:24:22,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 00:24:23,016 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-12 00:24:23,016 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-12 00:24:23,018 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-12 00:24:23,028 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-12 00:24:23,028 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-12 00:24:23,031 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 4 states. [2018-04-12 00:24:23,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 00:24:23,126 INFO L93 Difference]: Finished difference Result 76 states and 95 transitions. [2018-04-12 00:24:23,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-12 00:24:23,127 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-04-12 00:24:23,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 00:24:23,135 INFO L225 Difference]: With dead ends: 76 [2018-04-12 00:24:23,136 INFO L226 Difference]: Without dead ends: 40 [2018-04-12 00:24:23,140 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 [2018-04-12 00:24:23,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-04-12 00:24:23,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 31. [2018-04-12 00:24:23,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-04-12 00:24:23,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2018-04-12 00:24:23,172 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 10 [2018-04-12 00:24:23,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 00:24:23,173 INFO L459 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2018-04-12 00:24:23,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-12 00:24:23,173 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2018-04-12 00:24:23,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-12 00:24:23,174 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 00:24:23,174 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 00:24:23,174 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 00:24:23,175 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 [2018-04-12 00:24:23,187 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 00:24:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 00:24:23,198 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 00:24:23,278 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 00:24:23,279 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 00:24:23,337 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 00:24:23,357 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-12 00:24:23,357 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-04-12 00:24:23,359 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-12 00:24:23,359 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-12 00:24:23,360 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-04-12 00:24:23,360 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 9 states. [2018-04-12 00:24:23,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 00:24:23,485 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2018-04-12 00:24:23,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-12 00:24:23,485 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-04-12 00:24:23,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 00:24:23,486 INFO L225 Difference]: With dead ends: 40 [2018-04-12 00:24:23,486 INFO L226 Difference]: Without dead ends: 39 [2018-04-12 00:24:23,488 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 [2018-04-12 00:24:23,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-04-12 00:24:23,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 29. [2018-04-12 00:24:23,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-04-12 00:24:23,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2018-04-12 00:24:23,493 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 19 [2018-04-12 00:24:23,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 00:24:23,494 INFO L459 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2018-04-12 00:24:23,494 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-12 00:24:23,494 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2018-04-12 00:24:23,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-12 00:24:23,495 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 00:24:23,495 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] [2018-04-12 00:24:23,495 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 00:24:23,496 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 [2018-04-12 00:24:23,505 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 00:24:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 00:24:23,517 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 00:24:23,545 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-12 00:24:23,545 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 00:24:23,578 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-12 00:24:23,600 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 00:24:23,600 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-04-12 00:24:23,601 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-12 00:24:23,601 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-12 00:24:23,601 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-04-12 00:24:23,601 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 8 states. [2018-04-12 00:24:23,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 00:24:23,684 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2018-04-12 00:24:23,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-12 00:24:23,684 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2018-04-12 00:24:23,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 00:24:23,685 INFO L225 Difference]: With dead ends: 62 [2018-04-12 00:24:23,685 INFO L226 Difference]: Without dead ends: 51 [2018-04-12 00:24:23,686 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 [2018-04-12 00:24:23,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-04-12 00:24:23,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2018-04-12 00:24:23,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-04-12 00:24:23,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2018-04-12 00:24:23,693 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 28 [2018-04-12 00:24:23,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 00:24:23,694 INFO L459 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2018-04-12 00:24:23,694 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-12 00:24:23,694 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2018-04-12 00:24:23,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-04-12 00:24:23,695 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 00:24:23,695 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] [2018-04-12 00:24:23,696 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 00:24:23,696 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 [2018-04-12 00:24:23,702 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 00:24:23,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 00:24:23,719 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 00:24:23,793 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-12 00:24:23,793 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 00:24:23,889 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-12 00:24:23,909 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 00:24:23,910 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2018-04-12 00:24:23,910 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-12 00:24:23,911 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-12 00:24:23,911 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2018-04-12 00:24:23,911 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 16 states. [2018-04-12 00:24:24,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 00:24:24,209 INFO L93 Difference]: Finished difference Result 98 states and 103 transitions. [2018-04-12 00:24:24,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-12 00:24:24,210 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 46 [2018-04-12 00:24:24,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 00:24:24,211 INFO L225 Difference]: With dead ends: 98 [2018-04-12 00:24:24,211 INFO L226 Difference]: Without dead ends: 87 [2018-04-12 00:24:24,212 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 [2018-04-12 00:24:24,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-04-12 00:24:24,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 83. [2018-04-12 00:24:24,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-04-12 00:24:24,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 84 transitions. [2018-04-12 00:24:24,222 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 84 transitions. Word has length 46 [2018-04-12 00:24:24,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 00:24:24,222 INFO L459 AbstractCegarLoop]: Abstraction has 83 states and 84 transitions. [2018-04-12 00:24:24,222 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-12 00:24:24,222 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 84 transitions. [2018-04-12 00:24:24,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-04-12 00:24:24,225 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 00:24:24,225 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] [2018-04-12 00:24:24,225 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 00:24:24,226 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 [2018-04-12 00:24:24,232 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 00:24:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 00:24:24,263 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 00:24:24,392 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 203 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-12 00:24:24,393 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 00:24:24,583 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 203 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-12 00:24:24,602 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 00:24:24,603 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2018-04-12 00:24:24,603 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-12 00:24:24,603 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-12 00:24:24,604 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2018-04-12 00:24:24,604 INFO L87 Difference]: Start difference. First operand 83 states and 84 transitions. Second operand 32 states. [2018-04-12 00:24:25,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 00:24:25,367 INFO L93 Difference]: Finished difference Result 170 states and 179 transitions. [2018-04-12 00:24:25,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-04-12 00:24:25,368 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 82 [2018-04-12 00:24:25,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 00:24:25,370 INFO L225 Difference]: With dead ends: 170 [2018-04-12 00:24:25,370 INFO L226 Difference]: Without dead ends: 159 [2018-04-12 00:24:25,372 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 [2018-04-12 00:24:25,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-04-12 00:24:25,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 155. [2018-04-12 00:24:25,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-04-12 00:24:25,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 156 transitions. [2018-04-12 00:24:25,386 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 156 transitions. Word has length 82 [2018-04-12 00:24:25,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 00:24:25,387 INFO L459 AbstractCegarLoop]: Abstraction has 155 states and 156 transitions. [2018-04-12 00:24:25,387 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-12 00:24:25,387 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 156 transitions. [2018-04-12 00:24:25,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-04-12 00:24:25,392 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 00:24:25,392 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] [2018-04-12 00:24:25,392 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 00:24:25,392 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 [2018-04-12 00:24:25,403 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 00:24:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 00:24:25,432 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 00:24:25,722 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 0 proven. 975 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-12 00:24:25,722 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 00:24:26,344 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 0 proven. 975 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-12 00:24:26,364 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 00:24:26,364 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 64 [2018-04-12 00:24:26,365 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-04-12 00:24:26,365 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-04-12 00:24:26,367 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1056, Invalid=2976, Unknown=0, NotChecked=0, Total=4032 [2018-04-12 00:24:26,367 INFO L87 Difference]: Start difference. First operand 155 states and 156 transitions. Second operand 64 states. [2018-04-12 00:24:27,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 00:24:27,999 INFO L93 Difference]: Finished difference Result 314 states and 331 transitions. [2018-04-12 00:24:27,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2018-04-12 00:24:27,999 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 154 [2018-04-12 00:24:28,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 00:24:28,001 INFO L225 Difference]: With dead ends: 314 [2018-04-12 00:24:28,001 INFO L226 Difference]: Without dead ends: 303 [2018-04-12 00:24:28,004 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 [2018-04-12 00:24:28,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2018-04-12 00:24:28,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2018-04-12 00:24:28,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2018-04-12 00:24:28,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 300 transitions. [2018-04-12 00:24:28,025 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 300 transitions. Word has length 154 [2018-04-12 00:24:28,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 00:24:28,025 INFO L459 AbstractCegarLoop]: Abstraction has 299 states and 300 transitions. [2018-04-12 00:24:28,026 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-04-12 00:24:28,026 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 300 transitions. [2018-04-12 00:24:28,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2018-04-12 00:24:28,032 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 00:24:28,032 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] [2018-04-12 00:24:28,032 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 00:24:28,032 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 [2018-04-12 00:24:28,051 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 00:24:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 00:24:28,119 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 00:24:29,110 INFO L134 CoverageAnalysis]: Checked inductivity of 4249 backedges. 0 proven. 4247 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-12 00:24:29,110 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 00:24:31,386 INFO L134 CoverageAnalysis]: Checked inductivity of 4249 backedges. 0 proven. 4247 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-12 00:24:31,406 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 00:24:31,406 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65] total 128 [2018-04-12 00:24:31,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 128 states [2018-04-12 00:24:31,408 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2018-04-12 00:24:31,410 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4160, Invalid=12096, Unknown=0, NotChecked=0, Total=16256 [2018-04-12 00:24:31,410 INFO L87 Difference]: Start difference. First operand 299 states and 300 transitions. Second operand 128 states. [2018-04-12 00:24:35,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 00:24:35,846 INFO L93 Difference]: Finished difference Result 602 states and 635 transitions. [2018-04-12 00:24:35,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2018-04-12 00:24:35,846 INFO L78 Accepts]: Start accepts. Automaton has 128 states. Word has length 298 [2018-04-12 00:24:35,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 00:24:35,849 INFO L225 Difference]: With dead ends: 602 [2018-04-12 00:24:35,850 INFO L226 Difference]: Without dead ends: 591 [2018-04-12 00:24:35,856 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 719 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 250 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14169 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=19971, Invalid=43281, Unknown=0, NotChecked=0, Total=63252 [2018-04-12 00:24:35,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2018-04-12 00:24:35,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 587. [2018-04-12 00:24:35,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2018-04-12 00:24:35,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 588 transitions. [2018-04-12 00:24:35,881 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 588 transitions. Word has length 298 [2018-04-12 00:24:35,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 00:24:35,881 INFO L459 AbstractCegarLoop]: Abstraction has 587 states and 588 transitions. [2018-04-12 00:24:35,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 128 states. [2018-04-12 00:24:35,881 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 588 transitions. [2018-04-12 00:24:35,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2018-04-12 00:24:35,899 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 00:24:35,899 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] [2018-04-12 00:24:35,899 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 00:24:35,900 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 [2018-04-12 00:24:35,907 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 00:24:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 00:24:36,017 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 00:24:39,521 INFO L134 CoverageAnalysis]: Checked inductivity of 17705 backedges. 0 proven. 17703 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-12 00:24:39,521 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 00:24:48,144 INFO L134 CoverageAnalysis]: Checked inductivity of 17705 backedges. 0 proven. 17703 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-12 00:24:48,164 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 00:24:48,164 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129] total 256 [2018-04-12 00:24:48,165 INFO L442 AbstractCegarLoop]: Interpolant automaton has 256 states [2018-04-12 00:24:48,167 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 256 interpolants. [2018-04-12 00:24:48,169 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16512, Invalid=48768, Unknown=0, NotChecked=0, Total=65280 [2018-04-12 00:24:48,170 INFO L87 Difference]: Start difference. First operand 587 states and 588 transitions. Second operand 256 states. [2018-04-12 00:25:06,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 00:25:06,417 INFO L93 Difference]: Finished difference Result 1178 states and 1243 transitions. [2018-04-12 00:25:06,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 381 states. [2018-04-12 00:25:06,417 INFO L78 Accepts]: Start accepts. Automaton has 256 states. Word has length 586 [2018-04-12 00:25:06,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 00:25:06,421 INFO L225 Difference]: With dead ends: 1178 [2018-04-12 00:25:06,422 INFO L226 Difference]: Without dead ends: 1167 [2018-04-12 00:25:06,427 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 [2018-04-12 00:25:06,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2018-04-12 00:25:06,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 1163. [2018-04-12 00:25:06,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1163 states. [2018-04-12 00:25:06,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1164 transitions. [2018-04-12 00:25:06,453 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1164 transitions. Word has length 586 [2018-04-12 00:25:06,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 00:25:06,454 INFO L459 AbstractCegarLoop]: Abstraction has 1163 states and 1164 transitions. [2018-04-12 00:25:06,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 256 states. [2018-04-12 00:25:06,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1164 transitions. [2018-04-12 00:25:06,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1163 [2018-04-12 00:25:06,462 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 00:25:06,462 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] [2018-04-12 00:25:06,463 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 00:25:06,463 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 [2018-04-12 00:25:06,469 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 00:25:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 00:25:06,648 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 00:25:20,882 INFO L134 CoverageAnalysis]: Checked inductivity of 72265 backedges. 0 proven. 72263 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-12 00:25:20,882 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 00:25:57,680 INFO L134 CoverageAnalysis]: Checked inductivity of 72265 backedges. 0 proven. 72263 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-12 00:25:57,711 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 00:25:57,712 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [257, 257] total 512 [2018-04-12 00:25:57,713 INFO L442 AbstractCegarLoop]: Interpolant automaton has 512 states [2018-04-12 00:25:57,723 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 512 interpolants. [2018-04-12 00:25:57,729 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65792, Invalid=195840, Unknown=0, NotChecked=0, Total=261632 [2018-04-12 00:25:57,730 INFO L87 Difference]: Start difference. First operand 1163 states and 1164 transitions. Second operand 512 states. [2018-04-12 00:27:22,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 00:27:22,563 INFO L93 Difference]: Finished difference Result 2330 states and 2459 transitions. [2018-04-12 00:27:22,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 765 states. [2018-04-12 00:27:22,563 INFO L78 Accepts]: Start accepts. Automaton has 512 states. Word has length 1162 [2018-04-12 00:27:22,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 00:27:22,575 INFO L225 Difference]: With dead ends: 2330 [2018-04-12 00:27:22,575 INFO L226 Difference]: Without dead ends: 2319 [2018-04-12 00:27:22,609 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2831 GetRequests, 1813 SyntacticMatches, 0 SemanticMatches, 1018 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240921 ImplicationChecksByTransitivity, 114.5s TimeCoverageRelationStatistics Valid=325635, Invalid=713745, Unknown=0, NotChecked=0, Total=1039380 [2018-04-12 00:27:22,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2018-04-12 00:27:22,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 2315. [2018-04-12 00:27:22,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2315 states. [2018-04-12 00:27:22,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2315 states to 2315 states and 2316 transitions. [2018-04-12 00:27:22,675 INFO L78 Accepts]: Start accepts. Automaton has 2315 states and 2316 transitions. Word has length 1162 [2018-04-12 00:27:22,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 00:27:22,677 INFO L459 AbstractCegarLoop]: Abstraction has 2315 states and 2316 transitions. [2018-04-12 00:27:22,677 INFO L460 AbstractCegarLoop]: Interpolant automaton has 512 states. [2018-04-12 00:27:22,678 INFO L276 IsEmpty]: Start isEmpty. Operand 2315 states and 2316 transitions. [2018-04-12 00:27:22,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2315 [2018-04-12 00:27:22,702 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 00:27:22,703 INFO L355 BasicCegarLoop]: trace histogram [256, 255, 255, 255, 255, 255, 255, 255, 255, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 00:27:22,703 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 00:27:22,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1471954275, now seen corresponding path program 8 times No working directory specified, using /storage/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 [2018-04-12 00:27:22,710 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 00:27:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 00:27:23,037 INFO L270 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2018-04-12 00:28:13,644 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-04-12 00:28:13,645 WARN L519 AbstractCegarLoop]: Verification canceled [2018-04-12 00:28:13,649 WARN L197 ceAbstractionStarter]: Timeout [2018-04-12 00:28:13,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.04 12:28:13 BoogieIcfgContainer [2018-04-12 00:28:13,649 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-12 00:28:13,650 INFO L168 Benchmark]: Toolchain (without parser) took 231343.27 ms. Allocated memory was 300.9 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 242.9 MB in the beginning and 1.8 GB in the end (delta: -1.6 GB). Peak memory consumption was 317.8 MB. Max. memory is 5.3 GB. [2018-04-12 00:28:13,651 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 300.9 MB. Free memory is still 263.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-12 00:28:13,651 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.05 ms. Allocated memory is still 300.9 MB. Free memory was 242.9 MB in the beginning and 233.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 5.3 GB. [2018-04-12 00:28:13,652 INFO L168 Benchmark]: Boogie Preprocessor took 22.97 ms. Allocated memory is still 300.9 MB. Free memory was 233.8 MB in the beginning and 232.8 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-04-12 00:28:13,652 INFO L168 Benchmark]: RCFGBuilder took 270.52 ms. Allocated memory was 300.9 MB in the beginning and 462.4 MB in the end (delta: 161.5 MB). Free memory was 231.8 MB in the beginning and 433.3 MB in the end (delta: -201.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 5.3 GB. [2018-04-12 00:28:13,653 INFO L168 Benchmark]: TraceAbstraction took 230846.09 ms. Allocated memory was 462.4 MB in the beginning and 2.2 GB in the end (delta: 1.7 GB). Free memory was 433.3 MB in the beginning and 1.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 346.7 MB. Max. memory is 5.3 GB. [2018-04-12 00:28:13,655 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 300.9 MB. Free memory is still 263.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 198.05 ms. Allocated memory is still 300.9 MB. Free memory was 242.9 MB in the beginning and 233.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 22.97 ms. Allocated memory is still 300.9 MB. Free memory was 233.8 MB in the beginning and 232.8 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 270.52 ms. Allocated memory was 300.9 MB in the beginning and 462.4 MB in the end (delta: 161.5 MB). Free memory was 231.8 MB in the beginning and 433.3 MB in the end (delta: -201.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 230846.09 ms. Allocated memory was 462.4 MB in the beginning and 2.2 GB in the end (delta: 1.7 GB). Free memory was 433.3 MB in the beginning and 1.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 346.7 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 analyzing trace of length 2315 with TraceHistMax 256, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 512 known predicates. - TimeoutResultAtElement [Line: 13]: Timeout (TraceAbstraction) Unable to prove that array index is always in bounds (line 13). Cancelled while BasicCegarLoop was analyzing trace of length 2315 with TraceHistMax 256, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 512 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 36 locations, 2 error locations. TIMEOUT Result, 230.7s OverallTime, 10 OverallIterations, 256 TraceHistogramMax, 110.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 188 SDtfs, 7029 SDslu, 3115 SDs, 0 SdLazy, 3383 SolverSat, 4306 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5752 GetRequests, 3748 SyntacticMatches, 2 SemanticMatches, 2002 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318201 ImplicationChecksByTransitivity, 152.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2315occurred in iteration=9, 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, 9 MinimizatonAttempts, 47 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 68.1s 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-0-2018-04-12_00-28-13-663.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-0-2018-04-12_00-28-13-663.csv Completed graceful shutdown