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 0.1.23-453dfda-m [2018-04-09 23:19:15,368 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-09 23:19:15,369 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-09 23:19:15,383 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-09 23:19:15,384 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-09 23:19:15,384 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-09 23:19:15,385 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-09 23:19:15,387 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-09 23:19:15,389 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-09 23:19:15,390 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-09 23:19:15,391 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-09 23:19:15,391 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-09 23:19:15,392 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-09 23:19:15,393 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-09 23:19:15,394 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-09 23:19:15,396 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-09 23:19:15,399 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-09 23:19:15,400 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-09 23:19:15,402 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-09 23:19:15,403 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-09 23:19:15,405 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-09 23:19:15,406 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-09 23:19:15,406 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-09 23:19:15,407 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-09 23:19:15,408 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-09 23:19:15,409 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-09 23:19:15,409 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-09 23:19:15,410 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-09 23:19:15,411 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-09 23:19:15,411 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-09 23:19:15,412 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-09 23:19:15,412 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 [2018-04-09 23:19:15,434 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-09 23:19:15,435 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-09 23:19:15,435 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-09 23:19:15,435 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-09 23:19:15,435 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-09 23:19:15,436 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-09 23:19:15,436 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-09 23:19:15,436 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-09 23:19:15,436 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-04-09 23:19:15,436 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-09 23:19:15,437 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-09 23:19:15,437 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-09 23:19:15,437 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-09 23:19:15,437 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-09 23:19:15,437 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-09 23:19:15,437 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-09 23:19:15,438 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-09 23:19:15,438 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-09 23:19:15,438 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-09 23:19:15,438 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-09 23:19:15,438 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-09 23:19:15,438 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-09 23:19:15,439 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-09 23:19:15,439 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-09 23:19:15,439 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-09 23:19:15,439 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-09 23:19:15,439 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-09 23:19:15,440 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-09 23:19:15,440 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-09 23:19:15,440 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-09 23:19:15,440 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-09 23:19:15,440 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-09 23:19:15,440 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 23:19:15,441 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-09 23:19:15,441 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-09 23:19:15,441 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-09 23:19:15,442 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-09 23:19:15,442 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-09 23:19:15,474 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-09 23:19:15,483 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-09 23:19:15,486 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-09 23:19:15,488 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-09 23:19:15,488 INFO L276 PluginConnector]: CDTParser initialized [2018-04-09 23:19:15,489 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/array3_false-valid-deref.i [2018-04-09 23:19:15,834 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG72d54be93 [2018-04-09 23:19:15,951 INFO L287 CDTParser]: IsIndexed: true [2018-04-09 23:19:15,951 INFO L288 CDTParser]: Found 1 translation units. [2018-04-09 23:19:15,951 INFO L168 CDTParser]: Scanning array3_false-valid-deref.i [2018-04-09 23:19:15,952 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-09 23:19:15,952 INFO L215 ultiparseSymbolTable]: [2018-04-09 23:19:15,952 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-09 23:19:15,953 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_farray__false_valid_deref_i____VERIFIER_assert ('__VERIFIER_assert') in array3_false-valid-deref.i [2018-04-09 23:19:15,953 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in array3_false-valid-deref.i [2018-04-09 23:19:15,953 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-09 23:19:15,953 INFO L233 ultiparseSymbolTable]: [2018-04-09 23:19:15,967 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG72d54be93 [2018-04-09 23:19:15,971 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-09 23:19:15,973 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-09 23:19:15,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-09 23:19:15,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-09 23:19:15,979 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-09 23:19:15,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.04 11:19:15" (1/1) ... [2018-04-09 23:19:15,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@312746cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 11:19:15, skipping insertion in model container [2018-04-09 23:19:15,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.04 11:19:15" (1/1) ... [2018-04-09 23:19:15,997 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-09 23:19:16,009 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-09 23:19:16,130 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-09 23:19:16,146 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-09 23:19:16,150 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 6 non ball SCCs. Number of states in SCCs 6. [2018-04-09 23:19:16,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 11:19:16 WrapperNode [2018-04-09 23:19:16,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-09 23:19:16,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-09 23:19:16,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-09 23:19:16,156 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-09 23:19:16,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 11:19:16" (1/1) ... [2018-04-09 23:19:16,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 11:19:16" (1/1) ... [2018-04-09 23:19:16,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 11:19:16" (1/1) ... [2018-04-09 23:19:16,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 11:19:16" (1/1) ... [2018-04-09 23:19:16,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 11:19:16" (1/1) ... [2018-04-09 23:19:16,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 11:19:16" (1/1) ... [2018-04-09 23:19:16,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 11:19:16" (1/1) ... [2018-04-09 23:19:16,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-09 23:19:16,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-09 23:19:16,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-09 23:19:16,180 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-09 23:19:16,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 11:19:16" (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 [2018-04-09 23:19:16,233 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-09 23:19:16,234 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-09 23:19:16,234 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_farray__false_valid_deref_i____VERIFIER_assert [2018-04-09 23:19:16,234 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-09 23:19:16,234 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-04-09 23:19:16,234 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-09 23:19:16,234 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_farray__false_valid_deref_i____VERIFIER_assert [2018-04-09 23:19:16,235 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-09 23:19:16,235 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-09 23:19:16,235 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-09 23:19:16,462 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-09 23:19:16,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.04 11:19:16 BoogieIcfgContainer [2018-04-09 23:19:16,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-09 23:19:16,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-09 23:19:16,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-09 23:19:16,465 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-09 23:19:16,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.04 11:19:15" (1/3) ... [2018-04-09 23:19:16,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548e6171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.04 11:19:16, skipping insertion in model container [2018-04-09 23:19:16,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 11:19:16" (2/3) ... [2018-04-09 23:19:16,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548e6171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.04 11:19:16, skipping insertion in model container [2018-04-09 23:19:16,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.04 11:19:16" (3/3) ... [2018-04-09 23:19:16,468 INFO L107 eAbstractionObserver]: Analyzing ICFG array3_false-valid-deref.i [2018-04-09 23:19:16,475 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-09 23:19:16,482 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-04-09 23:19:16,516 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-09 23:19:16,517 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-09 23:19:16,517 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-09 23:19:16,517 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-09 23:19:16,517 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-09 23:19:16,518 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-09 23:19:16,518 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-09 23:19:16,518 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-09 23:19:16,518 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-09 23:19:16,519 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-09 23:19:16,536 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-04-09 23:19:16,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-04-09 23:19:16,543 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 23:19:16,545 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 23:19:16,545 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-09 23:19:16,551 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 [2018-04-09 23:19:16,569 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 23:19:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 23:19:16,593 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 23:19:16,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 23:19:16,642 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 23:19:16,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 23:19:16,680 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 23:19:16,680 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-09 23:19:16,681 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-09 23:19:16,691 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-09 23:19:16,692 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-09 23:19:16,694 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 4 states. [2018-04-09 23:19:16,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 23:19:16,793 INFO L93 Difference]: Finished difference Result 76 states and 95 transitions. [2018-04-09 23:19:16,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-09 23:19:16,795 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-04-09 23:19:16,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 23:19:16,803 INFO L225 Difference]: With dead ends: 76 [2018-04-09 23:19:16,804 INFO L226 Difference]: Without dead ends: 40 [2018-04-09 23:19:16,806 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 [2018-04-09 23:19:16,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-04-09 23:19:16,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 31. [2018-04-09 23:19:16,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-04-09 23:19:16,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2018-04-09 23:19:16,841 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 10 [2018-04-09 23:19:16,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 23:19:16,841 INFO L459 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2018-04-09 23:19:16,842 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-09 23:19:16,842 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2018-04-09 23:19:16,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-09 23:19:16,843 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 23:19:16,843 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 23:19:16,843 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-09 23:19:16,843 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 [2018-04-09 23:19:16,855 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 23:19:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 23:19:16,868 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 23:19:16,939 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 23:19:16,940 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 23:19:16,995 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 23:19:17,016 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 23:19:17,016 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-04-09 23:19:17,018 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-09 23:19:17,019 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-09 23:19:17,019 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-04-09 23:19:17,019 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 9 states. [2018-04-09 23:19:17,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 23:19:17,129 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2018-04-09 23:19:17,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-09 23:19:17,130 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-04-09 23:19:17,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 23:19:17,131 INFO L225 Difference]: With dead ends: 40 [2018-04-09 23:19:17,131 INFO L226 Difference]: Without dead ends: 39 [2018-04-09 23:19:17,132 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 [2018-04-09 23:19:17,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-04-09 23:19:17,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 29. [2018-04-09 23:19:17,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-04-09 23:19:17,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2018-04-09 23:19:17,138 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 19 [2018-04-09 23:19:17,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 23:19:17,138 INFO L459 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2018-04-09 23:19:17,138 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-09 23:19:17,138 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2018-04-09 23:19:17,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-09 23:19:17,139 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 23:19:17,140 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] [2018-04-09 23:19:17,140 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-09 23:19:17,140 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 [2018-04-09 23:19:17,150 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 23:19:17,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 23:19:17,163 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 23:19:17,207 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-09 23:19:17,207 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 23:19:17,248 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-09 23:19:17,281 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 23:19:17,281 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-04-09 23:19:17,282 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-09 23:19:17,282 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-09 23:19:17,282 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-04-09 23:19:17,282 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 8 states. [2018-04-09 23:19:17,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 23:19:17,381 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2018-04-09 23:19:17,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-09 23:19:17,382 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2018-04-09 23:19:17,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 23:19:17,383 INFO L225 Difference]: With dead ends: 62 [2018-04-09 23:19:17,383 INFO L226 Difference]: Without dead ends: 51 [2018-04-09 23:19:17,384 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 [2018-04-09 23:19:17,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-04-09 23:19:17,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2018-04-09 23:19:17,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-04-09 23:19:17,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2018-04-09 23:19:17,391 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 28 [2018-04-09 23:19:17,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 23:19:17,392 INFO L459 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2018-04-09 23:19:17,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-09 23:19:17,392 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2018-04-09 23:19:17,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-04-09 23:19:17,393 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 23:19:17,394 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] [2018-04-09 23:19:17,394 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-09 23:19:17,394 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 [2018-04-09 23:19:17,406 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 23:19:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 23:19:17,424 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 23:19:17,497 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-09 23:19:17,497 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 23:19:17,614 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-09 23:19:17,648 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 23:19:17,648 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2018-04-09 23:19:17,649 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-09 23:19:17,649 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-09 23:19:17,649 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2018-04-09 23:19:17,650 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 16 states. [2018-04-09 23:19:17,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 23:19:17,918 INFO L93 Difference]: Finished difference Result 98 states and 103 transitions. [2018-04-09 23:19:17,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-09 23:19:17,919 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 46 [2018-04-09 23:19:17,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 23:19:17,920 INFO L225 Difference]: With dead ends: 98 [2018-04-09 23:19:17,921 INFO L226 Difference]: Without dead ends: 87 [2018-04-09 23:19:17,921 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=259, Invalid=497, Unknown=0, NotChecked=0, Total=756 [2018-04-09 23:19:17,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-04-09 23:19:17,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 83. [2018-04-09 23:19:17,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-04-09 23:19:17,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 84 transitions. [2018-04-09 23:19:17,930 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 84 transitions. Word has length 46 [2018-04-09 23:19:17,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 23:19:17,931 INFO L459 AbstractCegarLoop]: Abstraction has 83 states and 84 transitions. [2018-04-09 23:19:17,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-09 23:19:17,931 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 84 transitions. [2018-04-09 23:19:17,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-04-09 23:19:17,934 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 23:19:17,934 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] [2018-04-09 23:19:17,934 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-09 23:19:17,934 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 [2018-04-09 23:19:17,940 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 23:19:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 23:19:17,967 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 23:19:18,096 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 203 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-09 23:19:18,097 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 23:19:18,279 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 203 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-09 23:19:18,300 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 23:19:18,300 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2018-04-09 23:19:18,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-09 23:19:18,301 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-09 23:19:18,302 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2018-04-09 23:19:18,302 INFO L87 Difference]: Start difference. First operand 83 states and 84 transitions. Second operand 32 states. [2018-04-09 23:19:18,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 23:19:18,911 INFO L93 Difference]: Finished difference Result 170 states and 179 transitions. [2018-04-09 23:19:18,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-04-09 23:19:18,911 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 82 [2018-04-09 23:19:18,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 23:19:18,913 INFO L225 Difference]: With dead ends: 170 [2018-04-09 23:19:18,914 INFO L226 Difference]: Without dead ends: 159 [2018-04-09 23:19:18,916 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 [2018-04-09 23:19:18,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-04-09 23:19:18,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 155. [2018-04-09 23:19:18,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-04-09 23:19:18,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 156 transitions. [2018-04-09 23:19:18,930 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 156 transitions. Word has length 82 [2018-04-09 23:19:18,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 23:19:18,931 INFO L459 AbstractCegarLoop]: Abstraction has 155 states and 156 transitions. [2018-04-09 23:19:18,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-09 23:19:18,931 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 156 transitions. [2018-04-09 23:19:18,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-04-09 23:19:18,936 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 23:19:18,936 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] [2018-04-09 23:19:18,936 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-09 23:19:18,936 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 [2018-04-09 23:19:18,952 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 23:19:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 23:19:18,994 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 23:19:19,321 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 0 proven. 975 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-09 23:19:19,322 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 23:19:19,942 INFO L134 CoverageAnalysis]: Checked inductivity of 977 backedges. 0 proven. 975 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-09 23:19:19,963 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 23:19:19,964 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 64 [2018-04-09 23:19:19,964 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-04-09 23:19:19,965 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-04-09 23:19:19,966 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1056, Invalid=2976, Unknown=0, NotChecked=0, Total=4032 [2018-04-09 23:19:19,967 INFO L87 Difference]: Start difference. First operand 155 states and 156 transitions. Second operand 64 states. [2018-04-09 23:19:21,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 23:19:21,564 INFO L93 Difference]: Finished difference Result 314 states and 331 transitions. [2018-04-09 23:19:21,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2018-04-09 23:19:21,564 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 154 [2018-04-09 23:19:21,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 23:19:21,567 INFO L225 Difference]: With dead ends: 314 [2018-04-09 23:19:21,567 INFO L226 Difference]: Without dead ends: 303 [2018-04-09 23:19:21,571 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 [2018-04-09 23:19:21,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2018-04-09 23:19:21,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2018-04-09 23:19:21,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2018-04-09 23:19:21,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 300 transitions. [2018-04-09 23:19:21,594 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 300 transitions. Word has length 154 [2018-04-09 23:19:21,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 23:19:21,595 INFO L459 AbstractCegarLoop]: Abstraction has 299 states and 300 transitions. [2018-04-09 23:19:21,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-04-09 23:19:21,595 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 300 transitions. [2018-04-09 23:19:21,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2018-04-09 23:19:21,601 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 23:19:21,602 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] [2018-04-09 23:19:21,602 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-09 23:19:21,602 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 [2018-04-09 23:19:21,625 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 23:19:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 23:19:21,693 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 23:19:22,670 INFO L134 CoverageAnalysis]: Checked inductivity of 4249 backedges. 0 proven. 4247 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-09 23:19:22,670 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 23:19:24,940 INFO L134 CoverageAnalysis]: Checked inductivity of 4249 backedges. 0 proven. 4247 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-09 23:19:24,961 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 23:19:24,962 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65] total 128 [2018-04-09 23:19:24,963 INFO L442 AbstractCegarLoop]: Interpolant automaton has 128 states [2018-04-09 23:19:24,964 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2018-04-09 23:19:24,966 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4160, Invalid=12096, Unknown=0, NotChecked=0, Total=16256 [2018-04-09 23:19:24,967 INFO L87 Difference]: Start difference. First operand 299 states and 300 transitions. Second operand 128 states. [2018-04-09 23:19:29,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 23:19:29,518 INFO L93 Difference]: Finished difference Result 602 states and 635 transitions. [2018-04-09 23:19:29,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2018-04-09 23:19:29,519 INFO L78 Accepts]: Start accepts. Automaton has 128 states. Word has length 298 [2018-04-09 23:19:29,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 23:19:29,521 INFO L225 Difference]: With dead ends: 602 [2018-04-09 23:19:29,521 INFO L226 Difference]: Without dead ends: 591 [2018-04-09 23:19:29,528 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 [2018-04-09 23:19:29,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2018-04-09 23:19:29,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 587. [2018-04-09 23:19:29,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2018-04-09 23:19:29,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 588 transitions. [2018-04-09 23:19:29,551 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 588 transitions. Word has length 298 [2018-04-09 23:19:29,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 23:19:29,552 INFO L459 AbstractCegarLoop]: Abstraction has 587 states and 588 transitions. [2018-04-09 23:19:29,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 128 states. [2018-04-09 23:19:29,552 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 588 transitions. [2018-04-09 23:19:29,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2018-04-09 23:19:29,568 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 23:19:29,569 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] [2018-04-09 23:19:29,569 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-09 23:19:29,569 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 [2018-04-09 23:19:29,577 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 23:19:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 23:19:29,671 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 23:19:33,236 INFO L134 CoverageAnalysis]: Checked inductivity of 17705 backedges. 0 proven. 17703 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-09 23:19:33,236 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 23:19:41,929 INFO L134 CoverageAnalysis]: Checked inductivity of 17705 backedges. 0 proven. 17703 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-09 23:19:41,950 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 23:19:41,951 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129] total 256 [2018-04-09 23:19:41,951 INFO L442 AbstractCegarLoop]: Interpolant automaton has 256 states [2018-04-09 23:19:41,953 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 256 interpolants. [2018-04-09 23:19:41,955 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16512, Invalid=48768, Unknown=0, NotChecked=0, Total=65280 [2018-04-09 23:19:41,956 INFO L87 Difference]: Start difference. First operand 587 states and 588 transitions. Second operand 256 states. [2018-04-09 23:20:00,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 23:20:00,263 INFO L93 Difference]: Finished difference Result 1178 states and 1243 transitions. [2018-04-09 23:20:00,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 381 states. [2018-04-09 23:20:00,263 INFO L78 Accepts]: Start accepts. Automaton has 256 states. Word has length 586 [2018-04-09 23:20:00,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 23:20:00,267 INFO L225 Difference]: With dead ends: 1178 [2018-04-09 23:20:00,267 INFO L226 Difference]: Without dead ends: 1167 [2018-04-09 23:20:00,273 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1423 GetRequests, 917 SyntacticMatches, 0 SemanticMatches, 506 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59033 ImplicationChecksByTransitivity, 27.8s TimeCoverageRelationStatistics Valid=80899, Invalid=176657, Unknown=0, NotChecked=0, Total=257556 [2018-04-09 23:20:00,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2018-04-09 23:20:00,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 1163. [2018-04-09 23:20:00,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1163 states. [2018-04-09 23:20:00,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1164 transitions. [2018-04-09 23:20:00,298 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1164 transitions. Word has length 586 [2018-04-09 23:20:00,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 23:20:00,299 INFO L459 AbstractCegarLoop]: Abstraction has 1163 states and 1164 transitions. [2018-04-09 23:20:00,299 INFO L460 AbstractCegarLoop]: Interpolant automaton has 256 states. [2018-04-09 23:20:00,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1164 transitions. [2018-04-09 23:20:00,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1163 [2018-04-09 23:20:00,307 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 23:20:00,308 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] [2018-04-09 23:20:00,308 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-09 23:20:00,308 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 [2018-04-09 23:20:00,315 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 23:20:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 23:20:00,491 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 23:20:14,949 INFO L134 CoverageAnalysis]: Checked inductivity of 72265 backedges. 0 proven. 72263 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-09 23:20:14,949 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 23:20:52,224 INFO L134 CoverageAnalysis]: Checked inductivity of 72265 backedges. 0 proven. 72263 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-09 23:20:52,261 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 23:20:52,261 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [257, 257] total 512 [2018-04-09 23:20:52,263 INFO L442 AbstractCegarLoop]: Interpolant automaton has 512 states [2018-04-09 23:20:52,272 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 512 interpolants. [2018-04-09 23:20:52,278 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65792, Invalid=195840, Unknown=0, NotChecked=0, Total=261632 [2018-04-09 23:20:52,279 INFO L87 Difference]: Start difference. First operand 1163 states and 1164 transitions. Second operand 512 states. [2018-04-09 23:22:19,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 23:22:19,263 INFO L93 Difference]: Finished difference Result 2330 states and 2459 transitions. [2018-04-09 23:22:19,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 765 states. [2018-04-09 23:22:19,263 INFO L78 Accepts]: Start accepts. Automaton has 512 states. Word has length 1162 [2018-04-09 23:22:19,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 23:22:19,270 INFO L225 Difference]: With dead ends: 2330 [2018-04-09 23:22:19,270 INFO L226 Difference]: Without dead ends: 2319 [2018-04-09 23:22:19,290 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2831 GetRequests, 1813 SyntacticMatches, 0 SemanticMatches, 1018 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240921 ImplicationChecksByTransitivity, 116.1s TimeCoverageRelationStatistics Valid=325635, Invalid=713745, Unknown=0, NotChecked=0, Total=1039380 [2018-04-09 23:22:19,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2018-04-09 23:22:19,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 2315. [2018-04-09 23:22:19,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2315 states. [2018-04-09 23:22:19,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2315 states to 2315 states and 2316 transitions. [2018-04-09 23:22:19,327 INFO L78 Accepts]: Start accepts. Automaton has 2315 states and 2316 transitions. Word has length 1162 [2018-04-09 23:22:19,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 23:22:19,328 INFO L459 AbstractCegarLoop]: Abstraction has 2315 states and 2316 transitions. [2018-04-09 23:22:19,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 512 states. [2018-04-09 23:22:19,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2315 states and 2316 transitions. [2018-04-09 23:22:19,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2315 [2018-04-09 23:22:19,352 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 23:22:19,352 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] [2018-04-09 23:22:19,352 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr1AssertViolationARRAY_INDEX, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-09 23:22:19,353 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 [2018-04-09 23:22:19,358 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 23:22:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 23:22:19,672 INFO L270 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2018-04-09 23:23:07,752 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-04-09 23:23:07,753 WARN L519 AbstractCegarLoop]: Verification canceled [2018-04-09 23:23:07,756 WARN L197 ceAbstractionStarter]: Timeout [2018-04-09 23:23:07,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.04 11:23:07 BoogieIcfgContainer [2018-04-09 23:23:07,756 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-09 23:23:07,757 INFO L168 Benchmark]: Toolchain (without parser) took 231785.07 ms. Allocated memory was 305.1 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 247.7 MB in the beginning and 1.2 GB in the end (delta: -944.0 MB). Peak memory consumption was 938.7 MB. Max. memory is 5.3 GB. [2018-04-09 23:23:07,758 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 305.1 MB. Free memory is still 267.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-09 23:23:07,758 INFO L168 Benchmark]: CACSL2BoogieTranslator took 181.62 ms. Allocated memory is still 305.1 MB. Free memory was 247.7 MB in the beginning and 238.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 5.3 GB. [2018-04-09 23:23:07,758 INFO L168 Benchmark]: Boogie Preprocessor took 23.24 ms. Allocated memory is still 305.1 MB. Free memory was 238.5 MB in the beginning and 237.5 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-04-09 23:23:07,759 INFO L168 Benchmark]: RCFGBuilder took 282.38 ms. Allocated memory was 305.1 MB in the beginning and 468.7 MB in the end (delta: 163.6 MB). Free memory was 237.5 MB in the beginning and 439.7 MB in the end (delta: -202.3 MB). Peak memory consumption was 23.6 MB. Max. memory is 5.3 GB. [2018-04-09 23:23:07,759 INFO L168 Benchmark]: TraceAbstraction took 231293.32 ms. Allocated memory was 468.7 MB in the beginning and 2.2 GB in the end (delta: 1.7 GB). Free memory was 439.7 MB in the beginning and 1.2 GB in the end (delta: -752.0 MB). Peak memory consumption was 967.2 MB. Max. memory is 5.3 GB. [2018-04-09 23:23:07,762 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 305.1 MB. Free memory is still 267.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 181.62 ms. Allocated memory is still 305.1 MB. Free memory was 247.7 MB in the beginning and 238.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 23.24 ms. Allocated memory is still 305.1 MB. Free memory was 238.5 MB in the beginning and 237.5 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 282.38 ms. Allocated memory was 305.1 MB in the beginning and 468.7 MB in the end (delta: 163.6 MB). Free memory was 237.5 MB in the beginning and 439.7 MB in the end (delta: -202.3 MB). Peak memory consumption was 23.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 231293.32 ms. Allocated memory was 468.7 MB in the beginning and 2.2 GB in the end (delta: 1.7 GB). Free memory was 439.7 MB in the beginning and 1.2 GB in the end (delta: -752.0 MB). Peak memory consumption was 967.2 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, 231.2s OverallTime, 10 OverallIterations, 256 TraceHistogramMax, 112.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 188 SDtfs, 7029 SDslu, 3115 SDs, 0 SdLazy, 3383 SolverSat, 4306 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5752 GetRequests, 3748 SyntacticMatches, 2 SemanticMatches, 2002 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318201 ImplicationChecksByTransitivity, 154.6s 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, 69.0s 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-0-2018-04-09_23-23-07-769.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-0-2018-04-09_23-23-07-769.csv Completed graceful shutdown