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/ldv-memsafety/ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-4cf2d92 [2018-03-28 13:14:54,633 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-28 13:14:54,635 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-28 13:14:54,649 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-28 13:14:54,650 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-28 13:14:54,651 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-28 13:14:54,652 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-28 13:14:54,654 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-28 13:14:54,656 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-28 13:14:54,657 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-28 13:14:54,658 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-28 13:14:54,658 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-28 13:14:54,659 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-28 13:14:54,660 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-28 13:14:54,661 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-28 13:14:54,664 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-28 13:14:54,666 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-28 13:14:54,668 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-28 13:14:54,669 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-28 13:14:54,671 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-28 13:14:54,673 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-03-28 13:14:54,679 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-28 13:14:54,679 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-28 13:14:54,680 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-03-28 13:14:54,705 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-28 13:14:54,705 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-28 13:14:54,706 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-03-28 13:14:54,706 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-03-28 13:14:54,706 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-28 13:14:54,707 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-28 13:14:54,707 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-28 13:14:54,707 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-28 13:14:54,707 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-28 13:14:54,708 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-03-28 13:14:54,708 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-03-28 13:14:54,708 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-28 13:14:54,708 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-28 13:14:54,708 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-28 13:14:54,709 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-28 13:14:54,709 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-28 13:14:54,709 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-28 13:14:54,709 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-28 13:14:54,709 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-28 13:14:54,709 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-28 13:14:54,710 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-28 13:14:54,710 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-28 13:14:54,710 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-28 13:14:54,710 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-28 13:14:54,710 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-28 13:14:54,711 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-28 13:14:54,711 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-28 13:14:54,711 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-28 13:14:54,711 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-28 13:14:54,711 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-28 13:14:54,712 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-28 13:14:54,712 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:14:54,712 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-28 13:14:54,713 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-28 13:14:54,713 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-28 13:14:54,713 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-03-28 13:14:54,713 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-03-28 13:14:54,750 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-28 13:14:54,763 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-28 13:14:54,768 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-28 13:14:54,769 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-28 13:14:54,770 INFO L276 PluginConnector]: CDTParser initialized [2018-03-28 13:14:54,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c [2018-03-28 13:14:55,106 INFO L228 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGd8873d47d [2018-03-28 13:14:55,230 INFO L291 CDTParser]: IsIndexed: true [2018-03-28 13:14:55,230 INFO L292 CDTParser]: Found 1 translation units. [2018-03-28 13:14:55,231 INFO L171 CDTParser]: Scanning ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c [2018-03-28 13:14:55,232 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-28 13:14:55,232 INFO L215 ultiparseSymbolTable]: [2018-03-28 13:14:55,232 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-28 13:14:55,232 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c [2018-03-28 13:14:55,232 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__foo ('foo') in ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c [2018-03-28 13:14:55,232 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-28 13:14:55,232 INFO L233 ultiparseSymbolTable]: [2018-03-28 13:14:55,249 INFO L334 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGd8873d47d [2018-03-28 13:14:55,254 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-28 13:14:55,258 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-28 13:14:55,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-28 13:14:55,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-28 13:14:55,265 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-28 13:14:55,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 01:14:55" (1/1) ... [2018-03-28 13:14:55,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b63d89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:14:55, skipping insertion in model container [2018-03-28 13:14:55,268 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 01:14:55" (1/1) ... [2018-03-28 13:14:55,283 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-28 13:14:55,294 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-28 13:14:55,424 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-28 13:14:55,443 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-28 13:14:55,447 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-03-28 13:14:55,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:14:55 WrapperNode [2018-03-28 13:14:55,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-28 13:14:55,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-28 13:14:55,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-28 13:14:55,456 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-28 13:14:55,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:14:55" (1/1) ... [2018-03-28 13:14:55,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:14:55" (1/1) ... [2018-03-28 13:14:55,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:14:55" (1/1) ... [2018-03-28 13:14:55,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:14:55" (1/1) ... [2018-03-28 13:14:55,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:14:55" (1/1) ... [2018-03-28 13:14:55,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:14:55" (1/1) ... [2018-03-28 13:14:55,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:14:55" (1/1) ... [2018-03-28 13:14:55,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-28 13:14:55,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-28 13:14:55,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-28 13:14:55,486 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-28 13:14:55,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:14:55" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-28 13:14:55,536 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-28 13:14:55,536 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-28 13:14:55,536 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__foo [2018-03-28 13:14:55,536 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-28 13:14:55,536 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__foo [2018-03-28 13:14:55,536 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-28 13:14:55,536 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-28 13:14:55,537 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-28 13:14:55,537 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-28 13:14:55,537 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-28 13:14:55,537 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-28 13:14:55,537 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-28 13:14:55,537 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-28 13:14:55,806 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-28 13:14:55,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 01:14:55 BoogieIcfgContainer [2018-03-28 13:14:55,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-28 13:14:55,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-28 13:14:55,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-28 13:14:55,810 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-28 13:14:55,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 01:14:55" (1/3) ... [2018-03-28 13:14:55,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ef8676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 01:14:55, skipping insertion in model container [2018-03-28 13:14:55,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:14:55" (2/3) ... [2018-03-28 13:14:55,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ef8676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 01:14:55, skipping insertion in model container [2018-03-28 13:14:55,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 01:14:55" (3/3) ... [2018-03-28 13:14:55,812 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c [2018-03-28 13:14:55,819 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-28 13:14:55,824 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-03-28 13:14:55,867 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-28 13:14:55,868 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-28 13:14:55,868 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-28 13:14:55,868 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-28 13:14:55,868 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-28 13:14:55,868 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-28 13:14:55,868 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-28 13:14:55,869 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-28 13:14:55,869 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-28 13:14:55,869 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-28 13:14:55,882 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2018-03-28 13:14:55,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-03-28 13:14:55,886 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:14:55,887 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:14:55,887 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:14:55,890 INFO L82 PathProgramCache]: Analyzing trace with hash 924065095, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:14:55,902 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:14:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:14:55,943 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:14:56,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:14:56,006 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:14:56,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:14:56,051 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:14:56,051 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-28 13:14:56,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-28 13:14:56,062 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-28 13:14:56,063 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-03-28 13:14:56,064 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 4 states. [2018-03-28 13:14:56,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:14:56,161 INFO L93 Difference]: Finished difference Result 136 states and 158 transitions. [2018-03-28 13:14:56,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-28 13:14:56,163 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-03-28 13:14:56,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:14:56,174 INFO L225 Difference]: With dead ends: 136 [2018-03-28 13:14:56,175 INFO L226 Difference]: Without dead ends: 80 [2018-03-28 13:14:56,179 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-03-28 13:14:56,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-03-28 13:14:56,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 64. [2018-03-28 13:14:56,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-03-28 13:14:56,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2018-03-28 13:14:56,225 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 13 [2018-03-28 13:14:56,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:14:56,225 INFO L459 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2018-03-28 13:14:56,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-28 13:14:56,226 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2018-03-28 13:14:56,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-03-28 13:14:56,226 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:14:56,227 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:14:56,227 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:14:56,227 INFO L82 PathProgramCache]: Analyzing trace with hash 591861313, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:14:56,240 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:14:56,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:14:56,262 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:14:56,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:14:56,276 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:14:56,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:14:56,346 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:14:56,346 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2018-03-28 13:14:56,348 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-28 13:14:56,348 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-28 13:14:56,348 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-03-28 13:14:56,348 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand 4 states. [2018-03-28 13:14:56,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:14:56,386 INFO L93 Difference]: Finished difference Result 78 states and 82 transitions. [2018-03-28 13:14:56,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-28 13:14:56,387 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-03-28 13:14:56,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:14:56,390 INFO L225 Difference]: With dead ends: 78 [2018-03-28 13:14:56,390 INFO L226 Difference]: Without dead ends: 77 [2018-03-28 13:14:56,391 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-03-28 13:14:56,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-03-28 13:14:56,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 67. [2018-03-28 13:14:56,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-03-28 13:14:56,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2018-03-28 13:14:56,400 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 22 [2018-03-28 13:14:56,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:14:56,400 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2018-03-28 13:14:56,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-28 13:14:56,400 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2018-03-28 13:14:56,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-03-28 13:14:56,401 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:14:56,401 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:14:56,401 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:14:56,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1167831631, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:14:56,408 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:14:56,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:14:56,429 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:14:56,456 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 13:14:56,457 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:14:56,459 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:14:56,460 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-28 13:14:56,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:14:56,472 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:14:56,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:14:56,500 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:14:56,501 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2018-03-28 13:14:56,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-03-28 13:14:56,501 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-03-28 13:14:56,501 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-03-28 13:14:56,502 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand 5 states. [2018-03-28 13:14:56,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:14:56,577 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2018-03-28 13:14:56,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-28 13:14:56,577 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-03-28 13:14:56,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:14:56,578 INFO L225 Difference]: With dead ends: 67 [2018-03-28 13:14:56,579 INFO L226 Difference]: Without dead ends: 66 [2018-03-28 13:14:56,579 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-03-28 13:14:56,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-03-28 13:14:56,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-03-28 13:14:56,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-03-28 13:14:56,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2018-03-28 13:14:56,587 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 23 [2018-03-28 13:14:56,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:14:56,588 INFO L459 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2018-03-28 13:14:56,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-03-28 13:14:56,588 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2018-03-28 13:14:56,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-03-28 13:14:56,589 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:14:56,589 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:14:56,589 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:14:56,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1167831632, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:14:56,598 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:14:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:14:56,613 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:14:56,619 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 13:14:56,619 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:14:56,625 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:14:56,626 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-28 13:14:56,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:14:56,659 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:14:56,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:14:56,771 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:14:56,771 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2018-03-28 13:14:56,772 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-03-28 13:14:56,772 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-03-28 13:14:56,772 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-03-28 13:14:56,772 INFO L87 Difference]: Start difference. First operand 66 states and 70 transitions. Second operand 10 states. [2018-03-28 13:14:56,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:14:56,936 INFO L93 Difference]: Finished difference Result 75 states and 79 transitions. [2018-03-28 13:14:56,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-28 13:14:56,937 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2018-03-28 13:14:56,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:14:56,938 INFO L225 Difference]: With dead ends: 75 [2018-03-28 13:14:56,938 INFO L226 Difference]: Without dead ends: 74 [2018-03-28 13:14:56,939 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-03-28 13:14:56,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-03-28 13:14:56,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 67. [2018-03-28 13:14:56,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-03-28 13:14:56,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2018-03-28 13:14:56,948 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 23 [2018-03-28 13:14:56,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:14:56,949 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2018-03-28 13:14:56,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-03-28 13:14:56,949 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2018-03-28 13:14:56,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-03-28 13:14:56,950 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:14:56,950 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, 1, 1, 1] [2018-03-28 13:14:56,951 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:14:56,951 INFO L82 PathProgramCache]: Analyzing trace with hash -572236607, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:14:56,965 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:14:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:14:56,983 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:14:57,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:14:57,120 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:14:57,195 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:14:57,229 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:14:57,229 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 11 [2018-03-28 13:14:57,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-03-28 13:14:57,230 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-03-28 13:14:57,230 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-03-28 13:14:57,231 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand 11 states. [2018-03-28 13:14:57,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:14:57,463 INFO L93 Difference]: Finished difference Result 157 states and 168 transitions. [2018-03-28 13:14:57,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-28 13:14:57,464 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 31 [2018-03-28 13:14:57,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:14:57,466 INFO L225 Difference]: With dead ends: 157 [2018-03-28 13:14:57,466 INFO L226 Difference]: Without dead ends: 103 [2018-03-28 13:14:57,467 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 49 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2018-03-28 13:14:57,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-03-28 13:14:57,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 87. [2018-03-28 13:14:57,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-03-28 13:14:57,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 92 transitions. [2018-03-28 13:14:57,480 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 92 transitions. Word has length 31 [2018-03-28 13:14:57,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:14:57,480 INFO L459 AbstractCegarLoop]: Abstraction has 87 states and 92 transitions. [2018-03-28 13:14:57,481 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-03-28 13:14:57,481 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 92 transitions. [2018-03-28 13:14:57,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-03-28 13:14:57,482 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:14:57,482 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, 1, 1, 1, 1, 1] [2018-03-28 13:14:57,483 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:14:57,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1735417043, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:14:57,491 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:14:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:14:57,511 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:14:57,543 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:14:57,543 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:14:57,591 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:14:57,624 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:14:57,624 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2018-03-28 13:14:57,625 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-03-28 13:14:57,625 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-03-28 13:14:57,625 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-03-28 13:14:57,626 INFO L87 Difference]: Start difference. First operand 87 states and 92 transitions. Second operand 8 states. [2018-03-28 13:14:57,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:14:57,757 INFO L93 Difference]: Finished difference Result 164 states and 173 transitions. [2018-03-28 13:14:57,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-28 13:14:57,757 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2018-03-28 13:14:57,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:14:57,758 INFO L225 Difference]: With dead ends: 164 [2018-03-28 13:14:57,759 INFO L226 Difference]: Without dead ends: 107 [2018-03-28 13:14:57,760 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-03-28 13:14:57,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-03-28 13:14:57,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 87. [2018-03-28 13:14:57,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-03-28 13:14:57,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2018-03-28 13:14:57,770 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 33 [2018-03-28 13:14:57,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:14:57,770 INFO L459 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2018-03-28 13:14:57,770 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-03-28 13:14:57,770 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2018-03-28 13:14:57,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-03-28 13:14:57,771 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:14:57,771 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:14:57,772 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:14:57,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1153304147, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:14:57,782 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:14:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:14:57,798 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:14:57,815 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-28 13:14:57,815 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:14:57,837 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-28 13:14:57,858 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:14:57,858 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-03-28 13:14:57,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-28 13:14:57,859 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-28 13:14:57,859 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-03-28 13:14:57,859 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand 9 states. [2018-03-28 13:14:57,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:14:57,933 INFO L93 Difference]: Finished difference Result 102 states and 105 transitions. [2018-03-28 13:14:57,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-03-28 13:14:57,934 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2018-03-28 13:14:57,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:14:57,935 INFO L225 Difference]: With dead ends: 102 [2018-03-28 13:14:57,935 INFO L226 Difference]: Without dead ends: 101 [2018-03-28 13:14:57,936 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2018-03-28 13:14:57,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-03-28 13:14:57,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 86. [2018-03-28 13:14:57,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-03-28 13:14:57,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 90 transitions. [2018-03-28 13:14:57,945 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 90 transitions. Word has length 42 [2018-03-28 13:14:57,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:14:57,945 INFO L459 AbstractCegarLoop]: Abstraction has 86 states and 90 transitions. [2018-03-28 13:14:57,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-28 13:14:57,945 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 90 transitions. [2018-03-28 13:14:57,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-03-28 13:14:57,947 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:14:57,947 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:14:57,947 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:14:57,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1391967448, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:14:57,953 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:14:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:14:57,975 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:14:58,009 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-28 13:14:58,010 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:14:58,033 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-03-28 13:14:58,054 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:14:58,054 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-03-28 13:14:58,055 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-03-28 13:14:58,055 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-03-28 13:14:58,055 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-03-28 13:14:58,055 INFO L87 Difference]: Start difference. First operand 86 states and 90 transitions. Second operand 8 states. [2018-03-28 13:14:58,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:14:58,129 INFO L93 Difference]: Finished difference Result 134 states and 141 transitions. [2018-03-28 13:14:58,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-03-28 13:14:58,130 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2018-03-28 13:14:58,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:14:58,131 INFO L225 Difference]: With dead ends: 134 [2018-03-28 13:14:58,131 INFO L226 Difference]: Without dead ends: 114 [2018-03-28 13:14:58,132 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2018-03-28 13:14:58,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-03-28 13:14:58,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 104. [2018-03-28 13:14:58,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-03-28 13:14:58,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 109 transitions. [2018-03-28 13:14:58,138 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 109 transitions. Word has length 50 [2018-03-28 13:14:58,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:14:58,138 INFO L459 AbstractCegarLoop]: Abstraction has 104 states and 109 transitions. [2018-03-28 13:14:58,138 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-03-28 13:14:58,138 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 109 transitions. [2018-03-28 13:14:58,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-03-28 13:14:58,141 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:14:58,141 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:14:58,141 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:14:58,141 INFO L82 PathProgramCache]: Analyzing trace with hash -364733747, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:14:58,147 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:14:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:14:58,165 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:14:58,180 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-03-28 13:14:58,180 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:14:58,211 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-03-28 13:14:58,232 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:14:58,232 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-03-28 13:14:58,232 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-03-28 13:14:58,232 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-03-28 13:14:58,232 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-03-28 13:14:58,233 INFO L87 Difference]: Start difference. First operand 104 states and 109 transitions. Second operand 8 states. [2018-03-28 13:14:58,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:14:58,308 INFO L93 Difference]: Finished difference Result 138 states and 149 transitions. [2018-03-28 13:14:58,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-03-28 13:14:58,309 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 60 [2018-03-28 13:14:58,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:14:58,311 INFO L225 Difference]: With dead ends: 138 [2018-03-28 13:14:58,311 INFO L226 Difference]: Without dead ends: 137 [2018-03-28 13:14:58,312 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-03-28 13:14:58,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-03-28 13:14:58,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 121. [2018-03-28 13:14:58,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-03-28 13:14:58,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 129 transitions. [2018-03-28 13:14:58,322 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 129 transitions. Word has length 60 [2018-03-28 13:14:58,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:14:58,322 INFO L459 AbstractCegarLoop]: Abstraction has 121 states and 129 transitions. [2018-03-28 13:14:58,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-03-28 13:14:58,323 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 129 transitions. [2018-03-28 13:14:58,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-03-28 13:14:58,324 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:14:58,324 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:14:58,324 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:14:58,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1578155844, now seen corresponding path program 1 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 [2018-03-28 13:14:58,333 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:14:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:14:58,353 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:14:58,364 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 13:14:58,364 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:14:58,372 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:14:58,372 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-28 13:14:58,463 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-03-28 13:14:58,463 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:14:58,554 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-03-28 13:14:58,576 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:14:58,577 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2018-03-28 13:14:58,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-03-28 13:14:58,577 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-03-28 13:14:58,577 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2018-03-28 13:14:58,578 INFO L87 Difference]: Start difference. First operand 121 states and 129 transitions. Second operand 15 states. [2018-03-28 13:14:58,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:14:58,864 INFO L93 Difference]: Finished difference Result 132 states and 143 transitions. [2018-03-28 13:14:58,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-03-28 13:14:58,864 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 61 [2018-03-28 13:14:58,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:14:58,866 INFO L225 Difference]: With dead ends: 132 [2018-03-28 13:14:58,866 INFO L226 Difference]: Without dead ends: 131 [2018-03-28 13:14:58,867 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=360, Unknown=0, NotChecked=0, Total=506 [2018-03-28 13:14:58,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-03-28 13:14:58,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 122. [2018-03-28 13:14:58,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-03-28 13:14:58,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 129 transitions. [2018-03-28 13:14:58,875 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 129 transitions. Word has length 61 [2018-03-28 13:14:58,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:14:58,876 INFO L459 AbstractCegarLoop]: Abstraction has 122 states and 129 transitions. [2018-03-28 13:14:58,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-03-28 13:14:58,876 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 129 transitions. [2018-03-28 13:14:58,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-03-28 13:14:58,878 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:14:58,878 INFO L355 BasicCegarLoop]: trace histogram [6, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:14:58,878 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:14:58,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1868455885, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:14:58,887 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:14:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:14:58,911 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:14:59,001 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 78 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-03-28 13:14:59,002 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:14:59,102 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 78 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-03-28 13:14:59,122 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:14:59,123 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2018-03-28 13:14:59,123 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-03-28 13:14:59,123 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-03-28 13:14:59,123 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2018-03-28 13:14:59,124 INFO L87 Difference]: Start difference. First operand 122 states and 129 transitions. Second operand 17 states. [2018-03-28 13:14:59,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:14:59,354 INFO L93 Difference]: Finished difference Result 243 states and 259 transitions. [2018-03-28 13:14:59,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-03-28 13:14:59,355 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 78 [2018-03-28 13:14:59,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:14:59,356 INFO L225 Difference]: With dead ends: 243 [2018-03-28 13:14:59,356 INFO L226 Difference]: Without dead ends: 164 [2018-03-28 13:14:59,358 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 135 SyntacticMatches, 5 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=187, Invalid=625, Unknown=0, NotChecked=0, Total=812 [2018-03-28 13:14:59,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2018-03-28 13:14:59,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 150. [2018-03-28 13:14:59,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-03-28 13:14:59,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 158 transitions. [2018-03-28 13:14:59,365 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 158 transitions. Word has length 78 [2018-03-28 13:14:59,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:14:59,365 INFO L459 AbstractCegarLoop]: Abstraction has 150 states and 158 transitions. [2018-03-28 13:14:59,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-03-28 13:14:59,365 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 158 transitions. [2018-03-28 13:14:59,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-03-28 13:14:59,366 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:14:59,366 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:14:59,366 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:14:59,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1102801392, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:14:59,376 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:14:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:14:59,402 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:14:59,442 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-03-28 13:14:59,442 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:14:59,533 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 38 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-03-28 13:14:59,555 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-03-28 13:14:59,556 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 12 [2018-03-28 13:14:59,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-28 13:14:59,556 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-28 13:14:59,556 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-03-28 13:14:59,556 INFO L87 Difference]: Start difference. First operand 150 states and 158 transitions. Second operand 12 states. [2018-03-28 13:14:59,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:14:59,679 INFO L93 Difference]: Finished difference Result 245 states and 258 transitions. [2018-03-28 13:14:59,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-03-28 13:14:59,679 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 90 [2018-03-28 13:14:59,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:14:59,681 INFO L225 Difference]: With dead ends: 245 [2018-03-28 13:14:59,681 INFO L226 Difference]: Without dead ends: 160 [2018-03-28 13:14:59,681 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 167 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-03-28 13:14:59,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2018-03-28 13:14:59,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 150. [2018-03-28 13:14:59,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-03-28 13:14:59,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 156 transitions. [2018-03-28 13:14:59,697 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 156 transitions. Word has length 90 [2018-03-28 13:14:59,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:14:59,698 INFO L459 AbstractCegarLoop]: Abstraction has 150 states and 156 transitions. [2018-03-28 13:14:59,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-28 13:14:59,698 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 156 transitions. [2018-03-28 13:14:59,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-03-28 13:14:59,699 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:14:59,699 INFO L355 BasicCegarLoop]: trace histogram [8, 6, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:14:59,700 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:14:59,700 INFO L82 PathProgramCache]: Analyzing trace with hash 468973633, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:14:59,708 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:14:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:14:59,735 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:14:59,835 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-03-28 13:14:59,835 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:14:59,917 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-03-28 13:14:59,938 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:14:59,939 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2018-03-28 13:14:59,939 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-03-28 13:14:59,939 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-03-28 13:14:59,939 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-03-28 13:14:59,940 INFO L87 Difference]: Start difference. First operand 150 states and 156 transitions. Second operand 14 states. [2018-03-28 13:15:00,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:00,146 INFO L93 Difference]: Finished difference Result 245 states and 255 transitions. [2018-03-28 13:15:00,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-03-28 13:15:00,146 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 107 [2018-03-28 13:15:00,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:00,148 INFO L225 Difference]: With dead ends: 245 [2018-03-28 13:15:00,148 INFO L226 Difference]: Without dead ends: 160 [2018-03-28 13:15:00,149 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 197 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-03-28 13:15:00,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2018-03-28 13:15:00,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 150. [2018-03-28 13:15:00,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-03-28 13:15:00,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 154 transitions. [2018-03-28 13:15:00,159 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 154 transitions. Word has length 107 [2018-03-28 13:15:00,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:00,159 INFO L459 AbstractCegarLoop]: Abstraction has 150 states and 154 transitions. [2018-03-28 13:15:00,159 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-03-28 13:15:00,159 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 154 transitions. [2018-03-28 13:15:00,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-03-28 13:15:00,161 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:00,161 INFO L355 BasicCegarLoop]: trace histogram [9, 7, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:00,161 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:00,161 INFO L82 PathProgramCache]: Analyzing trace with hash -353185703, now seen corresponding path program 4 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:00,171 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:00,201 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:00,352 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 152 proven. 18 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-03-28 13:15:00,352 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:00,517 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 152 proven. 18 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-03-28 13:15:00,538 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:00,538 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 23 [2018-03-28 13:15:00,539 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-03-28 13:15:00,539 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-03-28 13:15:00,539 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2018-03-28 13:15:00,539 INFO L87 Difference]: Start difference. First operand 150 states and 154 transitions. Second operand 23 states. [2018-03-28 13:15:00,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:00,929 INFO L93 Difference]: Finished difference Result 276 states and 287 transitions. [2018-03-28 13:15:00,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-03-28 13:15:00,930 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 116 [2018-03-28 13:15:00,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:00,931 INFO L225 Difference]: With dead ends: 276 [2018-03-28 13:15:00,931 INFO L226 Difference]: Without dead ends: 205 [2018-03-28 13:15:00,932 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 203 SyntacticMatches, 7 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=313, Invalid=1247, Unknown=0, NotChecked=0, Total=1560 [2018-03-28 13:15:00,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2018-03-28 13:15:00,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 189. [2018-03-28 13:15:00,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2018-03-28 13:15:00,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 194 transitions. [2018-03-28 13:15:00,941 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 194 transitions. Word has length 116 [2018-03-28 13:15:00,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:00,942 INFO L459 AbstractCegarLoop]: Abstraction has 189 states and 194 transitions. [2018-03-28 13:15:00,942 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-03-28 13:15:00,942 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 194 transitions. [2018-03-28 13:15:00,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-03-28 13:15:00,943 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:00,944 INFO L355 BasicCegarLoop]: trace histogram [8, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:00,944 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:00,944 INFO L82 PathProgramCache]: Analyzing trace with hash 2060478704, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:00,952 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:00,977 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:01,052 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 120 proven. 13 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-03-28 13:15:01,052 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:01,187 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 120 proven. 13 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-03-28 13:15:01,208 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:01,209 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 20 [2018-03-28 13:15:01,209 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-03-28 13:15:01,209 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-03-28 13:15:01,210 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2018-03-28 13:15:01,210 INFO L87 Difference]: Start difference. First operand 189 states and 194 transitions. Second operand 20 states. [2018-03-28 13:15:01,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:01,448 INFO L93 Difference]: Finished difference Result 280 states and 288 transitions. [2018-03-28 13:15:01,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-03-28 13:15:01,449 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 126 [2018-03-28 13:15:01,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:01,450 INFO L225 Difference]: With dead ends: 280 [2018-03-28 13:15:01,450 INFO L226 Difference]: Without dead ends: 203 [2018-03-28 13:15:01,451 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 227 SyntacticMatches, 7 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=191, Invalid=739, Unknown=0, NotChecked=0, Total=930 [2018-03-28 13:15:01,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2018-03-28 13:15:01,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 189. [2018-03-28 13:15:01,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2018-03-28 13:15:01,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 192 transitions. [2018-03-28 13:15:01,462 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 192 transitions. Word has length 126 [2018-03-28 13:15:01,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:01,462 INFO L459 AbstractCegarLoop]: Abstraction has 189 states and 192 transitions. [2018-03-28 13:15:01,462 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-03-28 13:15:01,463 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 192 transitions. [2018-03-28 13:15:01,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-03-28 13:15:01,464 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:01,464 INFO L355 BasicCegarLoop]: trace histogram [9, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:01,464 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:01,465 INFO L82 PathProgramCache]: Analyzing trace with hash 445493824, now seen corresponding path program 4 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:01,473 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:01,512 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:01,570 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2018-03-28 13:15:01,571 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:01,660 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2018-03-28 13:15:01,681 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:01,681 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2018-03-28 13:15:01,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-28 13:15:01,682 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-28 13:15:01,682 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2018-03-28 13:15:01,682 INFO L87 Difference]: Start difference. First operand 189 states and 192 transitions. Second operand 16 states. [2018-03-28 13:15:01,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:01,845 INFO L93 Difference]: Finished difference Result 257 states and 267 transitions. [2018-03-28 13:15:01,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-03-28 13:15:01,845 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 135 [2018-03-28 13:15:01,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:01,847 INFO L225 Difference]: With dead ends: 257 [2018-03-28 13:15:01,847 INFO L226 Difference]: Without dead ends: 237 [2018-03-28 13:15:01,847 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=259, Invalid=497, Unknown=0, NotChecked=0, Total=756 [2018-03-28 13:15:01,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2018-03-28 13:15:01,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 227. [2018-03-28 13:15:01,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2018-03-28 13:15:01,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 233 transitions. [2018-03-28 13:15:01,858 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 233 transitions. Word has length 135 [2018-03-28 13:15:01,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:01,859 INFO L459 AbstractCegarLoop]: Abstraction has 227 states and 233 transitions. [2018-03-28 13:15:01,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-28 13:15:01,859 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 233 transitions. [2018-03-28 13:15:01,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-03-28 13:15:01,861 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:01,861 INFO L355 BasicCegarLoop]: trace histogram [13, 10, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:01,861 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:01,861 INFO L82 PathProgramCache]: Analyzing trace with hash -208164555, now seen corresponding path program 5 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:01,873 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:01,910 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:01,952 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 204 proven. 36 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2018-03-28 13:15:01,953 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:02,052 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 204 proven. 36 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2018-03-28 13:15:02,073 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:02,074 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2018-03-28 13:15:02,074 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-28 13:15:02,074 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-28 13:15:02,074 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-03-28 13:15:02,075 INFO L87 Difference]: Start difference. First operand 227 states and 233 transitions. Second operand 16 states. [2018-03-28 13:15:02,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:02,427 INFO L93 Difference]: Finished difference Result 284 states and 309 transitions. [2018-03-28 13:15:02,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-03-28 13:15:02,428 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 163 [2018-03-28 13:15:02,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:02,429 INFO L225 Difference]: With dead ends: 284 [2018-03-28 13:15:02,430 INFO L226 Difference]: Without dead ends: 283 [2018-03-28 13:15:02,430 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2018-03-28 13:15:02,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2018-03-28 13:15:02,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 262. [2018-03-28 13:15:02,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2018-03-28 13:15:02,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 275 transitions. [2018-03-28 13:15:02,442 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 275 transitions. Word has length 163 [2018-03-28 13:15:02,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:02,442 INFO L459 AbstractCegarLoop]: Abstraction has 262 states and 275 transitions. [2018-03-28 13:15:02,442 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-28 13:15:02,443 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 275 transitions. [2018-03-28 13:15:02,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-03-28 13:15:02,444 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:02,444 INFO L355 BasicCegarLoop]: trace histogram [13, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:02,444 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:02,444 INFO L82 PathProgramCache]: Analyzing trace with hash 2136833500, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:02,450 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:02,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:02,488 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:02,503 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 13:15:02,504 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:15:02,525 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:15:02,525 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-28 13:15:02,938 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 225 proven. 39 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2018-03-28 13:15:02,938 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:03,124 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 225 proven. 39 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2018-03-28 13:15:03,146 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:03,147 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 22 [2018-03-28 13:15:03,234 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-03-28 13:15:03,235 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-03-28 13:15:03,235 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2018-03-28 13:15:03,235 INFO L87 Difference]: Start difference. First operand 262 states and 275 transitions. Second operand 23 states. [2018-03-28 13:15:03,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:03,887 INFO L93 Difference]: Finished difference Result 276 states and 301 transitions. [2018-03-28 13:15:03,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-03-28 13:15:03,887 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 164 [2018-03-28 13:15:03,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:03,888 INFO L225 Difference]: With dead ends: 276 [2018-03-28 13:15:03,888 INFO L226 Difference]: Without dead ends: 275 [2018-03-28 13:15:03,889 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 302 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=462, Invalid=1344, Unknown=0, NotChecked=0, Total=1806 [2018-03-28 13:15:03,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2018-03-28 13:15:03,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 263. [2018-03-28 13:15:03,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2018-03-28 13:15:03,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 273 transitions. [2018-03-28 13:15:03,901 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 273 transitions. Word has length 164 [2018-03-28 13:15:03,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:03,901 INFO L459 AbstractCegarLoop]: Abstraction has 263 states and 273 transitions. [2018-03-28 13:15:03,901 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-03-28 13:15:03,901 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 273 transitions. [2018-03-28 13:15:03,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-03-28 13:15:03,902 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:03,902 INFO L355 BasicCegarLoop]: trace histogram [17, 14, 13, 13, 13, 13, 13, 13, 13, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:03,902 INFO L408 AbstractCegarLoop]: === Iteration 19 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:03,902 INFO L82 PathProgramCache]: Analyzing trace with hash 226942773, now seen corresponding path program 6 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:03,908 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:03,953 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:04,220 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 639 proven. 42 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2018-03-28 13:15:04,220 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:04,440 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 639 proven. 42 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2018-03-28 13:15:04,461 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:04,462 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 29 [2018-03-28 13:15:04,462 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-03-28 13:15:04,462 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-03-28 13:15:04,463 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=682, Unknown=0, NotChecked=0, Total=812 [2018-03-28 13:15:04,463 INFO L87 Difference]: Start difference. First operand 263 states and 273 transitions. Second operand 29 states. [2018-03-28 13:15:05,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:05,058 INFO L93 Difference]: Finished difference Result 455 states and 476 transitions. [2018-03-28 13:15:05,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-03-28 13:15:05,059 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 199 [2018-03-28 13:15:05,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:05,061 INFO L225 Difference]: With dead ends: 455 [2018-03-28 13:15:05,062 INFO L226 Difference]: Without dead ends: 320 [2018-03-28 13:15:05,063 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 361 SyntacticMatches, 9 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=490, Invalid=2162, Unknown=0, NotChecked=0, Total=2652 [2018-03-28 13:15:05,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2018-03-28 13:15:05,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 309. [2018-03-28 13:15:05,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2018-03-28 13:15:05,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 319 transitions. [2018-03-28 13:15:05,080 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 319 transitions. Word has length 199 [2018-03-28 13:15:05,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:05,081 INFO L459 AbstractCegarLoop]: Abstraction has 309 states and 319 transitions. [2018-03-28 13:15:05,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-03-28 13:15:05,081 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 319 transitions. [2018-03-28 13:15:05,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2018-03-28 13:15:05,082 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:05,083 INFO L355 BasicCegarLoop]: trace histogram [21, 17, 16, 16, 16, 16, 16, 16, 16, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:05,083 INFO L408 AbstractCegarLoop]: === Iteration 20 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:05,083 INFO L82 PathProgramCache]: Analyzing trace with hash -780656423, now seen corresponding path program 7 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:05,095 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:05,149 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:05,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 970 proven. 33 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2018-03-28 13:15:05,378 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:05,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 970 proven. 33 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2018-03-28 13:15:05,726 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:05,726 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 26 [2018-03-28 13:15:05,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-03-28 13:15:05,727 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-03-28 13:15:05,727 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650 [2018-03-28 13:15:05,727 INFO L87 Difference]: Start difference. First operand 309 states and 319 transitions. Second operand 26 states. [2018-03-28 13:15:06,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:06,124 INFO L93 Difference]: Finished difference Result 460 states and 480 transitions. [2018-03-28 13:15:06,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-03-28 13:15:06,125 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 246 [2018-03-28 13:15:06,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:06,126 INFO L225 Difference]: With dead ends: 460 [2018-03-28 13:15:06,126 INFO L226 Difference]: Without dead ends: 319 [2018-03-28 13:15:06,127 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 459 SyntacticMatches, 9 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=325, Invalid=1397, Unknown=0, NotChecked=0, Total=1722 [2018-03-28 13:15:06,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2018-03-28 13:15:06,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 309. [2018-03-28 13:15:06,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2018-03-28 13:15:06,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 317 transitions. [2018-03-28 13:15:06,136 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 317 transitions. Word has length 246 [2018-03-28 13:15:06,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:06,136 INFO L459 AbstractCegarLoop]: Abstraction has 309 states and 317 transitions. [2018-03-28 13:15:06,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-03-28 13:15:06,137 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 317 transitions. [2018-03-28 13:15:06,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2018-03-28 13:15:06,137 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:06,138 INFO L355 BasicCegarLoop]: trace histogram [22, 18, 17, 17, 17, 17, 17, 17, 17, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:06,138 INFO L408 AbstractCegarLoop]: === Iteration 21 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:06,138 INFO L82 PathProgramCache]: Analyzing trace with hash -189405503, now seen corresponding path program 8 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:06,148 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:06,203 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:06,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 943 proven. 76 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2018-03-28 13:15:06,472 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:06,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 943 proven. 76 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2018-03-28 13:15:06,728 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:06,729 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 35 [2018-03-28 13:15:06,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-03-28 13:15:06,729 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-03-28 13:15:06,730 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1010, Unknown=0, NotChecked=0, Total=1190 [2018-03-28 13:15:06,730 INFO L87 Difference]: Start difference. First operand 309 states and 317 transitions. Second operand 35 states. [2018-03-28 13:15:08,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:08,004 INFO L93 Difference]: Finished difference Result 500 states and 517 transitions. [2018-03-28 13:15:08,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-03-28 13:15:08,004 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 255 [2018-03-28 13:15:08,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:08,007 INFO L225 Difference]: With dead ends: 500 [2018-03-28 13:15:08,008 INFO L226 Difference]: Without dead ends: 375 [2018-03-28 13:15:08,010 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 538 GetRequests, 465 SyntacticMatches, 11 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 914 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=705, Invalid=3327, Unknown=0, NotChecked=0, Total=4032 [2018-03-28 13:15:08,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2018-03-28 13:15:08,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 364. [2018-03-28 13:15:08,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2018-03-28 13:15:08,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 372 transitions. [2018-03-28 13:15:08,044 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 372 transitions. Word has length 255 [2018-03-28 13:15:08,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:08,044 INFO L459 AbstractCegarLoop]: Abstraction has 364 states and 372 transitions. [2018-03-28 13:15:08,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-03-28 13:15:08,045 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 372 transitions. [2018-03-28 13:15:08,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2018-03-28 13:15:08,047 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:08,047 INFO L355 BasicCegarLoop]: trace histogram [27, 22, 21, 21, 21, 21, 21, 21, 21, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:08,047 INFO L408 AbstractCegarLoop]: === Iteration 22 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:08,047 INFO L82 PathProgramCache]: Analyzing trace with hash 471390797, now seen corresponding path program 9 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:08,056 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:08,147 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:08,541 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 1593 proven. 62 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked. [2018-03-28 13:15:08,541 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:08,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 1593 proven. 62 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked. [2018-03-28 13:15:08,830 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:08,830 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 32 [2018-03-28 13:15:08,831 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-03-28 13:15:08,831 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-03-28 13:15:08,831 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=829, Unknown=0, NotChecked=0, Total=992 [2018-03-28 13:15:08,831 INFO L87 Difference]: Start difference. First operand 364 states and 372 transitions. Second operand 32 states. [2018-03-28 13:15:09,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:09,284 INFO L93 Difference]: Finished difference Result 505 states and 520 transitions. [2018-03-28 13:15:09,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-03-28 13:15:09,285 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 311 [2018-03-28 13:15:09,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:09,287 INFO L225 Difference]: With dead ends: 505 [2018-03-28 13:15:09,287 INFO L226 Difference]: Without dead ends: 374 [2018-03-28 13:15:09,288 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 643 GetRequests, 581 SyntacticMatches, 11 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 897 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=493, Invalid=2263, Unknown=0, NotChecked=0, Total=2756 [2018-03-28 13:15:09,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2018-03-28 13:15:09,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 364. [2018-03-28 13:15:09,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2018-03-28 13:15:09,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 370 transitions. [2018-03-28 13:15:09,298 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 370 transitions. Word has length 311 [2018-03-28 13:15:09,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:09,299 INFO L459 AbstractCegarLoop]: Abstraction has 364 states and 370 transitions. [2018-03-28 13:15:09,299 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-03-28 13:15:09,299 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 370 transitions. [2018-03-28 13:15:09,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2018-03-28 13:15:09,300 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:09,300 INFO L355 BasicCegarLoop]: trace histogram [28, 23, 22, 22, 22, 22, 22, 22, 22, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:09,300 INFO L408 AbstractCegarLoop]: === Iteration 23 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:09,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1646038989, now seen corresponding path program 10 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:09,308 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:09,369 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:09,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2620 backedges. 1304 proven. 120 refuted. 0 times theorem prover too weak. 1196 trivial. 0 not checked. [2018-03-28 13:15:09,660 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:10,065 INFO L134 CoverageAnalysis]: Checked inductivity of 2620 backedges. 1304 proven. 120 refuted. 0 times theorem prover too weak. 1196 trivial. 0 not checked. [2018-03-28 13:15:10,087 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:10,087 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 41 [2018-03-28 13:15:10,087 INFO L442 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-03-28 13:15:10,088 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-03-28 13:15:10,088 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=1402, Unknown=0, NotChecked=0, Total=1640 [2018-03-28 13:15:10,088 INFO L87 Difference]: Start difference. First operand 364 states and 370 transitions. Second operand 41 states. [2018-03-28 13:15:11,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:11,519 INFO L93 Difference]: Finished difference Result 554 states and 567 transitions. [2018-03-28 13:15:11,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-03-28 13:15:11,519 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 320 [2018-03-28 13:15:11,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:11,522 INFO L225 Difference]: With dead ends: 554 [2018-03-28 13:15:11,522 INFO L226 Difference]: Without dead ends: 439 [2018-03-28 13:15:11,524 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 674 GetRequests, 587 SyntacticMatches, 13 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1353 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=958, Invalid=4742, Unknown=0, NotChecked=0, Total=5700 [2018-03-28 13:15:11,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2018-03-28 13:15:11,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 428. [2018-03-28 13:15:11,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2018-03-28 13:15:11,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 434 transitions. [2018-03-28 13:15:11,535 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 434 transitions. Word has length 320 [2018-03-28 13:15:11,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:11,535 INFO L459 AbstractCegarLoop]: Abstraction has 428 states and 434 transitions. [2018-03-28 13:15:11,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-03-28 13:15:11,535 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 434 transitions. [2018-03-28 13:15:11,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2018-03-28 13:15:11,537 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:11,538 INFO L355 BasicCegarLoop]: trace histogram [34, 28, 27, 27, 27, 27, 27, 27, 27, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:11,538 INFO L408 AbstractCegarLoop]: === Iteration 24 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:11,538 INFO L82 PathProgramCache]: Analyzing trace with hash 747464769, now seen corresponding path program 11 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:11,544 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:11,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:11,632 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:12,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3930 backedges. 2415 proven. 100 refuted. 0 times theorem prover too weak. 1415 trivial. 0 not checked. [2018-03-28 13:15:12,150 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:12,509 INFO L134 CoverageAnalysis]: Checked inductivity of 3930 backedges. 2415 proven. 100 refuted. 0 times theorem prover too weak. 1415 trivial. 0 not checked. [2018-03-28 13:15:12,530 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:12,530 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 38 [2018-03-28 13:15:12,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-03-28 13:15:12,531 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-03-28 13:15:12,532 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=1187, Unknown=0, NotChecked=0, Total=1406 [2018-03-28 13:15:12,532 INFO L87 Difference]: Start difference. First operand 428 states and 434 transitions. Second operand 38 states. [2018-03-28 13:15:13,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:13,058 INFO L93 Difference]: Finished difference Result 559 states and 569 transitions. [2018-03-28 13:15:13,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-03-28 13:15:13,058 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 385 [2018-03-28 13:15:13,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:13,060 INFO L225 Difference]: With dead ends: 559 [2018-03-28 13:15:13,061 INFO L226 Difference]: Without dead ends: 438 [2018-03-28 13:15:13,062 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 796 GetRequests, 721 SyntacticMatches, 13 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1379 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=695, Invalid=3337, Unknown=0, NotChecked=0, Total=4032 [2018-03-28 13:15:13,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2018-03-28 13:15:13,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 428. [2018-03-28 13:15:13,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2018-03-28 13:15:13,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 432 transitions. [2018-03-28 13:15:13,072 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 432 transitions. Word has length 385 [2018-03-28 13:15:13,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:13,072 INFO L459 AbstractCegarLoop]: Abstraction has 428 states and 432 transitions. [2018-03-28 13:15:13,072 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-03-28 13:15:13,072 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 432 transitions. [2018-03-28 13:15:13,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2018-03-28 13:15:13,075 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:13,076 INFO L355 BasicCegarLoop]: trace histogram [35, 29, 28, 28, 28, 28, 28, 28, 28, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:13,076 INFO L408 AbstractCegarLoop]: === Iteration 25 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:13,076 INFO L82 PathProgramCache]: Analyzing trace with hash -579439527, now seen corresponding path program 12 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:13,086 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:13,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:13,168 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:13,541 INFO L134 CoverageAnalysis]: Checked inductivity of 4188 backedges. 1722 proven. 174 refuted. 0 times theorem prover too weak. 2292 trivial. 0 not checked. [2018-03-28 13:15:13,541 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:13,965 INFO L134 CoverageAnalysis]: Checked inductivity of 4188 backedges. 1722 proven. 174 refuted. 0 times theorem prover too weak. 2292 trivial. 0 not checked. [2018-03-28 13:15:13,986 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:13,986 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 47 [2018-03-28 13:15:13,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-03-28 13:15:13,987 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-03-28 13:15:13,988 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=1858, Unknown=0, NotChecked=0, Total=2162 [2018-03-28 13:15:13,988 INFO L87 Difference]: Start difference. First operand 428 states and 432 transitions. Second operand 47 states. [2018-03-28 13:15:14,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:14,890 INFO L93 Difference]: Finished difference Result 626 states and 637 transitions. [2018-03-28 13:15:14,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-03-28 13:15:14,891 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 394 [2018-03-28 13:15:14,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:14,894 INFO L225 Difference]: With dead ends: 626 [2018-03-28 13:15:14,894 INFO L226 Difference]: Without dead ends: 519 [2018-03-28 13:15:14,897 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 828 GetRequests, 727 SyntacticMatches, 15 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1877 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1249, Invalid=6407, Unknown=0, NotChecked=0, Total=7656 [2018-03-28 13:15:14,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2018-03-28 13:15:14,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 503. [2018-03-28 13:15:14,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2018-03-28 13:15:14,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 508 transitions. [2018-03-28 13:15:14,916 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 508 transitions. Word has length 394 [2018-03-28 13:15:14,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:14,917 INFO L459 AbstractCegarLoop]: Abstraction has 503 states and 508 transitions. [2018-03-28 13:15:14,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-03-28 13:15:14,917 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 508 transitions. [2018-03-28 13:15:14,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2018-03-28 13:15:14,920 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:14,920 INFO L355 BasicCegarLoop]: trace histogram [34, 27, 27, 27, 27, 27, 27, 27, 27, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:14,920 INFO L408 AbstractCegarLoop]: === Iteration 26 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:14,921 INFO L82 PathProgramCache]: Analyzing trace with hash -401142544, now seen corresponding path program 5 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:14,935 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:15,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:15,016 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:15,377 INFO L134 CoverageAnalysis]: Checked inductivity of 3971 backedges. 1520 proven. 147 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2018-03-28 13:15:15,377 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:15,826 INFO L134 CoverageAnalysis]: Checked inductivity of 3971 backedges. 1520 proven. 147 refuted. 0 times theorem prover too weak. 2304 trivial. 0 not checked. [2018-03-28 13:15:15,848 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:15,848 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 44 [2018-03-28 13:15:15,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-03-28 13:15:15,849 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-03-28 13:15:15,849 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=1609, Unknown=0, NotChecked=0, Total=1892 [2018-03-28 13:15:15,850 INFO L87 Difference]: Start difference. First operand 503 states and 508 transitions. Second operand 44 states. [2018-03-28 13:15:16,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:16,479 INFO L93 Difference]: Finished difference Result 630 states and 638 transitions. [2018-03-28 13:15:16,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-03-28 13:15:16,479 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 404 [2018-03-28 13:15:16,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:16,481 INFO L225 Difference]: With dead ends: 630 [2018-03-28 13:15:16,481 INFO L226 Difference]: Without dead ends: 517 [2018-03-28 13:15:16,482 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 839 GetRequests, 751 SyntacticMatches, 15 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1964 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=931, Invalid=4619, Unknown=0, NotChecked=0, Total=5550 [2018-03-28 13:15:16,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2018-03-28 13:15:16,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 503. [2018-03-28 13:15:16,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2018-03-28 13:15:16,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 506 transitions. [2018-03-28 13:15:16,501 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 506 transitions. Word has length 404 [2018-03-28 13:15:16,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:16,502 INFO L459 AbstractCegarLoop]: Abstraction has 503 states and 506 transitions. [2018-03-28 13:15:16,502 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-03-28 13:15:16,502 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 506 transitions. [2018-03-28 13:15:16,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2018-03-28 13:15:16,505 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:16,505 INFO L355 BasicCegarLoop]: trace histogram [35, 28, 28, 28, 28, 28, 28, 28, 28, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:16,505 INFO L408 AbstractCegarLoop]: === Iteration 27 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:16,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1216319040, now seen corresponding path program 6 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:16,515 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:16,599 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:16,869 INFO L134 CoverageAnalysis]: Checked inductivity of 4228 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 4004 trivial. 0 not checked. [2018-03-28 13:15:16,869 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:17,168 INFO L134 CoverageAnalysis]: Checked inductivity of 4228 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 4004 trivial. 0 not checked. [2018-03-28 13:15:17,189 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:17,189 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2018-03-28 13:15:17,190 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-03-28 13:15:17,190 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-03-28 13:15:17,190 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2018-03-28 13:15:17,191 INFO L87 Difference]: Start difference. First operand 503 states and 506 transitions. Second operand 32 states. [2018-03-28 13:15:17,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:17,646 INFO L93 Difference]: Finished difference Result 611 states and 629 transitions. [2018-03-28 13:15:17,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-03-28 13:15:17,646 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 413 [2018-03-28 13:15:17,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:17,648 INFO L225 Difference]: With dead ends: 611 [2018-03-28 13:15:17,648 INFO L226 Difference]: Without dead ends: 591 [2018-03-28 13:15:17,649 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 853 GetRequests, 795 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1155, Invalid=2385, Unknown=0, NotChecked=0, Total=3540 [2018-03-28 13:15:17,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2018-03-28 13:15:17,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 581. [2018-03-28 13:15:17,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 581 states. [2018-03-28 13:15:17,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 591 transitions. [2018-03-28 13:15:17,664 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 591 transitions. Word has length 413 [2018-03-28 13:15:17,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:17,665 INFO L459 AbstractCegarLoop]: Abstraction has 581 states and 591 transitions. [2018-03-28 13:15:17,665 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-03-28 13:15:17,665 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 591 transitions. [2018-03-28 13:15:17,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2018-03-28 13:15:17,667 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:17,668 INFO L355 BasicCegarLoop]: trace histogram [43, 36, 35, 35, 35, 35, 35, 35, 35, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:17,668 INFO L408 AbstractCegarLoop]: === Iteration 28 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:17,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1097286859, now seen corresponding path program 13 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:17,675 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:17,772 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:18,027 INFO L134 CoverageAnalysis]: Checked inductivity of 6447 backedges. 1960 proven. 210 refuted. 0 times theorem prover too weak. 4277 trivial. 0 not checked. [2018-03-28 13:15:18,028 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:18,438 INFO L134 CoverageAnalysis]: Checked inductivity of 6447 backedges. 1960 proven. 210 refuted. 0 times theorem prover too weak. 4277 trivial. 0 not checked. [2018-03-28 13:15:18,459 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:18,459 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2018-03-28 13:15:18,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-03-28 13:15:18,460 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-03-28 13:15:18,460 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=818, Unknown=0, NotChecked=0, Total=992 [2018-03-28 13:15:18,460 INFO L87 Difference]: Start difference. First operand 581 states and 591 transitions. Second operand 32 states. [2018-03-28 13:15:19,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:19,646 INFO L93 Difference]: Finished difference Result 690 states and 771 transitions. [2018-03-28 13:15:19,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-03-28 13:15:19,647 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 477 [2018-03-28 13:15:19,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:19,649 INFO L225 Difference]: With dead ends: 690 [2018-03-28 13:15:19,649 INFO L226 Difference]: Without dead ends: 689 [2018-03-28 13:15:19,650 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 993 GetRequests, 929 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1096, Invalid=3194, Unknown=0, NotChecked=0, Total=4290 [2018-03-28 13:15:19,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2018-03-28 13:15:19,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 652. [2018-03-28 13:15:19,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2018-03-28 13:15:19,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 677 transitions. [2018-03-28 13:15:19,676 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 677 transitions. Word has length 477 [2018-03-28 13:15:19,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:19,677 INFO L459 AbstractCegarLoop]: Abstraction has 652 states and 677 transitions. [2018-03-28 13:15:19,677 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-03-28 13:15:19,677 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 677 transitions. [2018-03-28 13:15:19,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2018-03-28 13:15:19,680 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:19,681 INFO L355 BasicCegarLoop]: trace histogram [43, 36, 36, 35, 35, 35, 35, 35, 35, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:19,681 INFO L408 AbstractCegarLoop]: === Iteration 29 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:19,681 INFO L82 PathProgramCache]: Analyzing trace with hash 343845852, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:19,700 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:19,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:19,821 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:19,827 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 13:15:19,827 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:15:19,836 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:15:19,837 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-28 13:15:20,669 INFO L134 CoverageAnalysis]: Checked inductivity of 6482 backedges. 2023 proven. 217 refuted. 0 times theorem prover too weak. 4242 trivial. 0 not checked. [2018-03-28 13:15:20,669 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:21,195 INFO L134 CoverageAnalysis]: Checked inductivity of 6482 backedges. 2023 proven. 217 refuted. 0 times theorem prover too weak. 4242 trivial. 0 not checked. [2018-03-28 13:15:21,216 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:21,216 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19] total 38 [2018-03-28 13:15:21,216 INFO L442 AbstractCegarLoop]: Interpolant automaton has 39 states [2018-03-28 13:15:21,217 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2018-03-28 13:15:21,217 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=1243, Unknown=0, NotChecked=0, Total=1482 [2018-03-28 13:15:21,217 INFO L87 Difference]: Start difference. First operand 652 states and 677 transitions. Second operand 39 states. [2018-03-28 13:15:23,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:23,525 INFO L93 Difference]: Finished difference Result 678 states and 759 transitions. [2018-03-28 13:15:23,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-03-28 13:15:23,525 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 478 [2018-03-28 13:15:23,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:23,527 INFO L225 Difference]: With dead ends: 678 [2018-03-28 13:15:23,528 INFO L226 Difference]: Without dead ends: 677 [2018-03-28 13:15:23,528 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1000 GetRequests, 906 SyntacticMatches, 13 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1417 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1574, Invalid=5232, Unknown=0, NotChecked=0, Total=6806 [2018-03-28 13:15:23,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2018-03-28 13:15:23,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 653. [2018-03-28 13:15:23,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 653 states. [2018-03-28 13:15:23,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 671 transitions. [2018-03-28 13:15:23,553 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 671 transitions. Word has length 478 [2018-03-28 13:15:23,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:23,553 INFO L459 AbstractCegarLoop]: Abstraction has 653 states and 671 transitions. [2018-03-28 13:15:23,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states. [2018-03-28 13:15:23,553 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 671 transitions. [2018-03-28 13:15:23,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2018-03-28 13:15:23,556 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:23,556 INFO L355 BasicCegarLoop]: trace histogram [51, 44, 43, 43, 43, 43, 43, 43, 43, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:23,556 INFO L408 AbstractCegarLoop]: === Iteration 30 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:23,557 INFO L82 PathProgramCache]: Analyzing trace with hash 181544757, now seen corresponding path program 14 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:23,571 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:23,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:23,683 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:24,206 INFO L134 CoverageAnalysis]: Checked inductivity of 9355 backedges. 4917 proven. 238 refuted. 0 times theorem prover too weak. 4200 trivial. 0 not checked. [2018-03-28 13:15:24,206 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:24,912 INFO L134 CoverageAnalysis]: Checked inductivity of 9355 backedges. 4917 proven. 238 refuted. 0 times theorem prover too weak. 4200 trivial. 0 not checked. [2018-03-28 13:15:24,947 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:24,947 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 53 [2018-03-28 13:15:24,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-03-28 13:15:24,948 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-03-28 13:15:24,948 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=2378, Unknown=0, NotChecked=0, Total=2756 [2018-03-28 13:15:24,949 INFO L87 Difference]: Start difference. First operand 653 states and 671 transitions. Second operand 53 states. [2018-03-28 13:15:26,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:26,167 INFO L93 Difference]: Finished difference Result 993 states and 1030 transitions. [2018-03-28 13:15:26,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-03-28 13:15:26,168 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 549 [2018-03-28 13:15:26,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:26,170 INFO L225 Difference]: With dead ends: 993 [2018-03-28 13:15:26,170 INFO L226 Difference]: Without dead ends: 746 [2018-03-28 13:15:26,173 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1144 GetRequests, 1029 SyntacticMatches, 17 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2486 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1578, Invalid=8322, Unknown=0, NotChecked=0, Total=9900 [2018-03-28 13:15:26,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-03-28 13:15:26,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 735. [2018-03-28 13:15:26,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2018-03-28 13:15:26,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 753 transitions. [2018-03-28 13:15:26,190 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 753 transitions. Word has length 549 [2018-03-28 13:15:26,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:26,190 INFO L459 AbstractCegarLoop]: Abstraction has 735 states and 753 transitions. [2018-03-28 13:15:26,190 INFO L460 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-03-28 13:15:26,190 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 753 transitions. [2018-03-28 13:15:26,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2018-03-28 13:15:26,193 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:26,194 INFO L355 BasicCegarLoop]: trace histogram [59, 51, 50, 50, 50, 50, 50, 50, 50, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:26,194 INFO L408 AbstractCegarLoop]: === Iteration 31 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:26,194 INFO L82 PathProgramCache]: Analyzing trace with hash 846739161, now seen corresponding path program 15 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:26,216 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:26,337 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:26,954 INFO L134 CoverageAnalysis]: Checked inductivity of 12623 backedges. 7412 proven. 203 refuted. 0 times theorem prover too weak. 5008 trivial. 0 not checked. [2018-03-28 13:15:26,954 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:27,564 INFO L134 CoverageAnalysis]: Checked inductivity of 12623 backedges. 7412 proven. 203 refuted. 0 times theorem prover too weak. 5008 trivial. 0 not checked. [2018-03-28 13:15:27,585 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:27,586 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 50 [2018-03-28 13:15:27,586 INFO L442 AbstractCegarLoop]: Interpolant automaton has 50 states [2018-03-28 13:15:27,587 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2018-03-28 13:15:27,587 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=355, Invalid=2095, Unknown=0, NotChecked=0, Total=2450 [2018-03-28 13:15:27,587 INFO L87 Difference]: Start difference. First operand 735 states and 753 transitions. Second operand 50 states. [2018-03-28 13:15:28,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:28,272 INFO L93 Difference]: Finished difference Result 998 states and 1038 transitions. [2018-03-28 13:15:28,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2018-03-28 13:15:28,272 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 632 [2018-03-28 13:15:28,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:28,275 INFO L225 Difference]: With dead ends: 998 [2018-03-28 13:15:28,276 INFO L226 Difference]: Without dead ends: 745 [2018-03-28 13:15:28,279 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1300 GetRequests, 1199 SyntacticMatches, 17 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2652 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1201, Invalid=6109, Unknown=0, NotChecked=0, Total=7310 [2018-03-28 13:15:28,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2018-03-28 13:15:28,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 735. [2018-03-28 13:15:28,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2018-03-28 13:15:28,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 751 transitions. [2018-03-28 13:15:28,303 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 751 transitions. Word has length 632 [2018-03-28 13:15:28,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:28,304 INFO L459 AbstractCegarLoop]: Abstraction has 735 states and 751 transitions. [2018-03-28 13:15:28,304 INFO L460 AbstractCegarLoop]: Interpolant automaton has 50 states. [2018-03-28 13:15:28,304 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 751 transitions. [2018-03-28 13:15:28,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2018-03-28 13:15:28,309 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:28,310 INFO L355 BasicCegarLoop]: trace histogram [60, 52, 51, 51, 51, 51, 51, 51, 51, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:28,310 INFO L408 AbstractCegarLoop]: === Iteration 32 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:28,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1635862335, now seen corresponding path program 16 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:28,319 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:28,482 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:29,198 INFO L134 CoverageAnalysis]: Checked inductivity of 13092 backedges. 6113 proven. 312 refuted. 0 times theorem prover too weak. 6667 trivial. 0 not checked. [2018-03-28 13:15:29,198 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:29,801 INFO L134 CoverageAnalysis]: Checked inductivity of 13092 backedges. 6113 proven. 312 refuted. 0 times theorem prover too weak. 6667 trivial. 0 not checked. [2018-03-28 13:15:29,822 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:29,822 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 59 [2018-03-28 13:15:29,823 INFO L442 AbstractCegarLoop]: Interpolant automaton has 59 states [2018-03-28 13:15:29,823 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2018-03-28 13:15:29,823 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=460, Invalid=2962, Unknown=0, NotChecked=0, Total=3422 [2018-03-28 13:15:29,823 INFO L87 Difference]: Start difference. First operand 735 states and 751 transitions. Second operand 59 states. [2018-03-28 13:15:31,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:31,284 INFO L93 Difference]: Finished difference Result 1074 states and 1107 transitions. [2018-03-28 13:15:31,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-03-28 13:15:31,284 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 641 [2018-03-28 13:15:31,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:31,287 INFO L225 Difference]: With dead ends: 1074 [2018-03-28 13:15:31,287 INFO L226 Difference]: Without dead ends: 837 [2018-03-28 13:15:31,289 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1334 GetRequests, 1205 SyntacticMatches, 19 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3180 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1945, Invalid=10487, Unknown=0, NotChecked=0, Total=12432 [2018-03-28 13:15:31,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2018-03-28 13:15:31,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 826. [2018-03-28 13:15:31,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 826 states. [2018-03-28 13:15:31,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 842 transitions. [2018-03-28 13:15:31,318 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 842 transitions. Word has length 641 [2018-03-28 13:15:31,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:31,319 INFO L459 AbstractCegarLoop]: Abstraction has 826 states and 842 transitions. [2018-03-28 13:15:31,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 59 states. [2018-03-28 13:15:31,319 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 842 transitions. [2018-03-28 13:15:31,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 734 [2018-03-28 13:15:31,325 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:31,325 INFO L355 BasicCegarLoop]: trace histogram [69, 60, 59, 59, 59, 59, 59, 59, 59, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:31,325 INFO L408 AbstractCegarLoop]: === Iteration 33 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:31,325 INFO L82 PathProgramCache]: Analyzing trace with hash -2126094259, now seen corresponding path program 17 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:31,338 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:31,487 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:32,147 INFO L134 CoverageAnalysis]: Checked inductivity of 17457 backedges. 9657 proven. 268 refuted. 0 times theorem prover too weak. 7532 trivial. 0 not checked. [2018-03-28 13:15:32,147 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:33,010 INFO L134 CoverageAnalysis]: Checked inductivity of 17457 backedges. 9657 proven. 268 refuted. 0 times theorem prover too weak. 7532 trivial. 0 not checked. [2018-03-28 13:15:33,031 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:33,032 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 56 [2018-03-28 13:15:33,033 INFO L442 AbstractCegarLoop]: Interpolant automaton has 56 states [2018-03-28 13:15:33,033 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2018-03-28 13:15:33,034 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=2645, Unknown=0, NotChecked=0, Total=3080 [2018-03-28 13:15:33,034 INFO L87 Difference]: Start difference. First operand 826 states and 842 transitions. Second operand 56 states. [2018-03-28 13:15:33,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:33,950 INFO L93 Difference]: Finished difference Result 1079 states and 1114 transitions. [2018-03-28 13:15:33,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2018-03-28 13:15:33,950 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 733 [2018-03-28 13:15:33,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:33,953 INFO L225 Difference]: With dead ends: 1079 [2018-03-28 13:15:33,953 INFO L226 Difference]: Without dead ends: 836 [2018-03-28 13:15:33,955 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1507 GetRequests, 1393 SyntacticMatches, 19 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3443 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1505, Invalid=7807, Unknown=0, NotChecked=0, Total=9312 [2018-03-28 13:15:33,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2018-03-28 13:15:33,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 826. [2018-03-28 13:15:33,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 826 states. [2018-03-28 13:15:33,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 840 transitions. [2018-03-28 13:15:33,974 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 840 transitions. Word has length 733 [2018-03-28 13:15:33,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:33,975 INFO L459 AbstractCegarLoop]: Abstraction has 826 states and 840 transitions. [2018-03-28 13:15:33,975 INFO L460 AbstractCegarLoop]: Interpolant automaton has 56 states. [2018-03-28 13:15:33,975 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 840 transitions. [2018-03-28 13:15:33,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 743 [2018-03-28 13:15:33,981 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:33,982 INFO L355 BasicCegarLoop]: trace histogram [70, 61, 60, 60, 60, 60, 60, 60, 60, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:33,982 INFO L408 AbstractCegarLoop]: === Iteration 34 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:33,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1948913203, now seen corresponding path program 18 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:33,991 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:34,118 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:34,783 INFO L134 CoverageAnalysis]: Checked inductivity of 18009 backedges. 7438 proven. 396 refuted. 0 times theorem prover too weak. 10175 trivial. 0 not checked. [2018-03-28 13:15:34,783 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:35,532 INFO L134 CoverageAnalysis]: Checked inductivity of 18009 backedges. 7438 proven. 396 refuted. 0 times theorem prover too weak. 10175 trivial. 0 not checked. [2018-03-28 13:15:35,553 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:35,553 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 65 [2018-03-28 13:15:35,554 INFO L442 AbstractCegarLoop]: Interpolant automaton has 65 states [2018-03-28 13:15:35,554 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2018-03-28 13:15:35,554 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=550, Invalid=3610, Unknown=0, NotChecked=0, Total=4160 [2018-03-28 13:15:35,555 INFO L87 Difference]: Start difference. First operand 826 states and 840 transitions. Second operand 65 states. [2018-03-28 13:15:37,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:37,280 INFO L93 Difference]: Finished difference Result 1164 states and 1193 transitions. [2018-03-28 13:15:37,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2018-03-28 13:15:37,280 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 742 [2018-03-28 13:15:37,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:37,283 INFO L225 Difference]: With dead ends: 1164 [2018-03-28 13:15:37,283 INFO L226 Difference]: Without dead ends: 937 [2018-03-28 13:15:37,285 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1542 GetRequests, 1399 SyntacticMatches, 21 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3959 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2350, Invalid=12902, Unknown=0, NotChecked=0, Total=15252 [2018-03-28 13:15:37,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2018-03-28 13:15:37,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 926. [2018-03-28 13:15:37,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 926 states. [2018-03-28 13:15:37,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 940 transitions. [2018-03-28 13:15:37,303 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 940 transitions. Word has length 742 [2018-03-28 13:15:37,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:37,303 INFO L459 AbstractCegarLoop]: Abstraction has 926 states and 940 transitions. [2018-03-28 13:15:37,303 INFO L460 AbstractCegarLoop]: Interpolant automaton has 65 states. [2018-03-28 13:15:37,304 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 940 transitions. [2018-03-28 13:15:37,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 844 [2018-03-28 13:15:37,308 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:37,308 INFO L355 BasicCegarLoop]: trace histogram [80, 70, 69, 69, 69, 69, 69, 69, 69, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:37,308 INFO L408 AbstractCegarLoop]: === Iteration 35 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:37,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1955590079, now seen corresponding path program 19 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:37,314 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:37,455 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:38,145 INFO L134 CoverageAnalysis]: Checked inductivity of 23711 backedges. 12281 proven. 342 refuted. 0 times theorem prover too weak. 11088 trivial. 0 not checked. [2018-03-28 13:15:38,146 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:39,232 INFO L134 CoverageAnalysis]: Checked inductivity of 23711 backedges. 12281 proven. 342 refuted. 0 times theorem prover too weak. 11088 trivial. 0 not checked. [2018-03-28 13:15:39,265 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:39,266 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 62 [2018-03-28 13:15:39,267 INFO L442 AbstractCegarLoop]: Interpolant automaton has 62 states [2018-03-28 13:15:39,267 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2018-03-28 13:15:39,268 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=523, Invalid=3259, Unknown=0, NotChecked=0, Total=3782 [2018-03-28 13:15:39,268 INFO L87 Difference]: Start difference. First operand 926 states and 940 transitions. Second operand 62 states. [2018-03-28 13:15:40,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:40,315 INFO L93 Difference]: Finished difference Result 1169 states and 1199 transitions. [2018-03-28 13:15:40,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-03-28 13:15:40,316 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 843 [2018-03-28 13:15:40,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:40,318 INFO L225 Difference]: With dead ends: 1169 [2018-03-28 13:15:40,318 INFO L226 Difference]: Without dead ends: 936 [2018-03-28 13:15:40,320 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1732 GetRequests, 1605 SyntacticMatches, 21 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4337 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1843, Invalid=9713, Unknown=0, NotChecked=0, Total=11556 [2018-03-28 13:15:40,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2018-03-28 13:15:40,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 926. [2018-03-28 13:15:40,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 926 states. [2018-03-28 13:15:40,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 938 transitions. [2018-03-28 13:15:40,338 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 938 transitions. Word has length 843 [2018-03-28 13:15:40,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:40,338 INFO L459 AbstractCegarLoop]: Abstraction has 926 states and 938 transitions. [2018-03-28 13:15:40,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 62 states. [2018-03-28 13:15:40,339 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 938 transitions. [2018-03-28 13:15:40,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 853 [2018-03-28 13:15:40,343 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:40,343 INFO L355 BasicCegarLoop]: trace histogram [81, 71, 70, 70, 70, 70, 70, 70, 70, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:40,343 INFO L408 AbstractCegarLoop]: === Iteration 36 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:40,343 INFO L82 PathProgramCache]: Analyzing trace with hash -366939047, now seen corresponding path program 20 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:40,349 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:40,487 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:41,348 INFO L134 CoverageAnalysis]: Checked inductivity of 24355 backedges. 8892 proven. 490 refuted. 0 times theorem prover too weak. 14973 trivial. 0 not checked. [2018-03-28 13:15:41,348 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:42,251 INFO L134 CoverageAnalysis]: Checked inductivity of 24355 backedges. 8892 proven. 490 refuted. 0 times theorem prover too weak. 14973 trivial. 0 not checked. [2018-03-28 13:15:42,272 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:42,273 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 71 [2018-03-28 13:15:42,274 INFO L442 AbstractCegarLoop]: Interpolant automaton has 71 states [2018-03-28 13:15:42,274 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2018-03-28 13:15:42,274 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=648, Invalid=4322, Unknown=0, NotChecked=0, Total=4970 [2018-03-28 13:15:42,274 INFO L87 Difference]: Start difference. First operand 926 states and 938 transitions. Second operand 71 states. [2018-03-28 13:15:44,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:44,101 INFO L93 Difference]: Finished difference Result 1263 states and 1288 transitions. [2018-03-28 13:15:44,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2018-03-28 13:15:44,101 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 852 [2018-03-28 13:15:44,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:44,104 INFO L225 Difference]: With dead ends: 1263 [2018-03-28 13:15:44,104 INFO L226 Difference]: Without dead ends: 1046 [2018-03-28 13:15:44,105 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1768 GetRequests, 1611 SyntacticMatches, 23 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4823 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=2793, Invalid=15567, Unknown=0, NotChecked=0, Total=18360 [2018-03-28 13:15:44,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2018-03-28 13:15:44,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 1035. [2018-03-28 13:15:44,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2018-03-28 13:15:44,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1047 transitions. [2018-03-28 13:15:44,123 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1047 transitions. Word has length 852 [2018-03-28 13:15:44,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:44,123 INFO L459 AbstractCegarLoop]: Abstraction has 1035 states and 1047 transitions. [2018-03-28 13:15:44,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 71 states. [2018-03-28 13:15:44,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1047 transitions. [2018-03-28 13:15:44,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 963 [2018-03-28 13:15:44,129 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:44,129 INFO L355 BasicCegarLoop]: trace histogram [92, 81, 80, 80, 80, 80, 80, 80, 80, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:44,129 INFO L408 AbstractCegarLoop]: === Iteration 37 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:44,129 INFO L82 PathProgramCache]: Analyzing trace with hash 454230501, now seen corresponding path program 21 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:44,135 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:44,287 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:45,155 INFO L134 CoverageAnalysis]: Checked inductivity of 31661 backedges. 15311 proven. 425 refuted. 0 times theorem prover too weak. 15925 trivial. 0 not checked. [2018-03-28 13:15:45,155 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:46,203 INFO L134 CoverageAnalysis]: Checked inductivity of 31661 backedges. 15311 proven. 425 refuted. 0 times theorem prover too weak. 15925 trivial. 0 not checked. [2018-03-28 13:15:46,225 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:46,225 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 68 [2018-03-28 13:15:46,226 INFO L442 AbstractCegarLoop]: Interpolant automaton has 68 states [2018-03-28 13:15:46,226 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2018-03-28 13:15:46,226 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=619, Invalid=3937, Unknown=0, NotChecked=0, Total=4556 [2018-03-28 13:15:46,226 INFO L87 Difference]: Start difference. First operand 1035 states and 1047 transitions. Second operand 68 states. [2018-03-28 13:15:47,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:47,310 INFO L93 Difference]: Finished difference Result 1268 states and 1293 transitions. [2018-03-28 13:15:47,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2018-03-28 13:15:47,310 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 962 [2018-03-28 13:15:47,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:47,313 INFO L225 Difference]: With dead ends: 1268 [2018-03-28 13:15:47,313 INFO L226 Difference]: Without dead ends: 1045 [2018-03-28 13:15:47,315 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1975 GetRequests, 1835 SyntacticMatches, 23 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5334 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2215, Invalid=11827, Unknown=0, NotChecked=0, Total=14042 [2018-03-28 13:15:47,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2018-03-28 13:15:47,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1035. [2018-03-28 13:15:47,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2018-03-28 13:15:47,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1045 transitions. [2018-03-28 13:15:47,333 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1045 transitions. Word has length 962 [2018-03-28 13:15:47,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:47,333 INFO L459 AbstractCegarLoop]: Abstraction has 1035 states and 1045 transitions. [2018-03-28 13:15:47,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 68 states. [2018-03-28 13:15:47,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1045 transitions. [2018-03-28 13:15:47,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 972 [2018-03-28 13:15:47,338 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:47,339 INFO L355 BasicCegarLoop]: trace histogram [93, 82, 81, 81, 81, 81, 81, 81, 81, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:47,339 INFO L408 AbstractCegarLoop]: === Iteration 38 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:47,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1934203701, now seen corresponding path program 22 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:47,344 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:47,497 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:48,498 INFO L134 CoverageAnalysis]: Checked inductivity of 32406 backedges. 10475 proven. 594 refuted. 0 times theorem prover too weak. 21337 trivial. 0 not checked. [2018-03-28 13:15:48,498 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:49,585 INFO L134 CoverageAnalysis]: Checked inductivity of 32406 backedges. 10475 proven. 594 refuted. 0 times theorem prover too weak. 21337 trivial. 0 not checked. [2018-03-28 13:15:49,607 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:49,608 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 77 [2018-03-28 13:15:49,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 77 states [2018-03-28 13:15:49,609 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2018-03-28 13:15:49,609 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=754, Invalid=5098, Unknown=0, NotChecked=0, Total=5852 [2018-03-28 13:15:49,609 INFO L87 Difference]: Start difference. First operand 1035 states and 1045 transitions. Second operand 77 states. [2018-03-28 13:15:51,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:51,587 INFO L93 Difference]: Finished difference Result 1371 states and 1392 transitions. [2018-03-28 13:15:51,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2018-03-28 13:15:51,588 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 971 [2018-03-28 13:15:51,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:51,590 INFO L225 Difference]: With dead ends: 1371 [2018-03-28 13:15:51,591 INFO L226 Difference]: Without dead ends: 1164 [2018-03-28 13:15:51,592 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2012 GetRequests, 1841 SyntacticMatches, 25 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5772 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=3274, Invalid=18482, Unknown=0, NotChecked=0, Total=21756 [2018-03-28 13:15:51,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1164 states. [2018-03-28 13:15:51,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1164 to 1153. [2018-03-28 13:15:51,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1153 states. [2018-03-28 13:15:51,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1163 transitions. [2018-03-28 13:15:51,612 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1163 transitions. Word has length 971 [2018-03-28 13:15:51,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:51,613 INFO L459 AbstractCegarLoop]: Abstraction has 1153 states and 1163 transitions. [2018-03-28 13:15:51,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 77 states. [2018-03-28 13:15:51,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1163 transitions. [2018-03-28 13:15:51,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1091 [2018-03-28 13:15:51,620 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:51,620 INFO L355 BasicCegarLoop]: trace histogram [105, 93, 92, 92, 92, 92, 92, 92, 92, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:51,620 INFO L408 AbstractCegarLoop]: === Iteration 39 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:51,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1993454375, now seen corresponding path program 23 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:51,626 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:51,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:51,800 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:52,820 INFO L134 CoverageAnalysis]: Checked inductivity of 41610 backedges. 18774 proven. 517 refuted. 0 times theorem prover too weak. 22319 trivial. 0 not checked. [2018-03-28 13:15:52,820 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:54,069 INFO L134 CoverageAnalysis]: Checked inductivity of 41610 backedges. 18774 proven. 517 refuted. 0 times theorem prover too weak. 22319 trivial. 0 not checked. [2018-03-28 13:15:54,090 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:54,091 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 74 [2018-03-28 13:15:54,091 INFO L442 AbstractCegarLoop]: Interpolant automaton has 74 states [2018-03-28 13:15:54,092 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2018-03-28 13:15:54,092 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=723, Invalid=4679, Unknown=0, NotChecked=0, Total=5402 [2018-03-28 13:15:54,092 INFO L87 Difference]: Start difference. First operand 1153 states and 1163 transitions. Second operand 74 states. [2018-03-28 13:15:55,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:15:55,313 INFO L93 Difference]: Finished difference Result 1376 states and 1396 transitions. [2018-03-28 13:15:55,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2018-03-28 13:15:55,313 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 1090 [2018-03-28 13:15:55,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:15:55,316 INFO L225 Difference]: With dead ends: 1376 [2018-03-28 13:15:55,317 INFO L226 Difference]: Without dead ends: 1163 [2018-03-28 13:15:55,318 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2236 GetRequests, 2083 SyntacticMatches, 25 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6434 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2621, Invalid=14149, Unknown=0, NotChecked=0, Total=16770 [2018-03-28 13:15:55,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2018-03-28 13:15:55,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 1153. [2018-03-28 13:15:55,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1153 states. [2018-03-28 13:15:55,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1161 transitions. [2018-03-28 13:15:55,338 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1161 transitions. Word has length 1090 [2018-03-28 13:15:55,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:15:55,339 INFO L459 AbstractCegarLoop]: Abstraction has 1153 states and 1161 transitions. [2018-03-28 13:15:55,339 INFO L460 AbstractCegarLoop]: Interpolant automaton has 74 states. [2018-03-28 13:15:55,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1161 transitions. [2018-03-28 13:15:55,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1100 [2018-03-28 13:15:55,345 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:15:55,346 INFO L355 BasicCegarLoop]: trace histogram [106, 94, 93, 93, 93, 93, 93, 93, 93, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:15:55,346 INFO L408 AbstractCegarLoop]: === Iteration 40 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:15:55,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1002347839, now seen corresponding path program 24 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:15:55,351 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:15:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:15:55,524 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:15:56,683 INFO L134 CoverageAnalysis]: Checked inductivity of 42465 backedges. 12187 proven. 708 refuted. 0 times theorem prover too weak. 29570 trivial. 0 not checked. [2018-03-28 13:15:56,684 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:15:58,023 INFO L134 CoverageAnalysis]: Checked inductivity of 42465 backedges. 12187 proven. 708 refuted. 0 times theorem prover too weak. 29570 trivial. 0 not checked. [2018-03-28 13:15:58,056 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:15:58,057 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56] total 83 [2018-03-28 13:15:58,058 INFO L442 AbstractCegarLoop]: Interpolant automaton has 83 states [2018-03-28 13:15:58,058 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2018-03-28 13:15:58,058 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=868, Invalid=5938, Unknown=0, NotChecked=0, Total=6806 [2018-03-28 13:15:58,058 INFO L87 Difference]: Start difference. First operand 1153 states and 1161 transitions. Second operand 83 states. [2018-03-28 13:16:00,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:16:00,806 INFO L93 Difference]: Finished difference Result 1488 states and 1505 transitions. [2018-03-28 13:16:00,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2018-03-28 13:16:00,806 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 1099 [2018-03-28 13:16:00,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:16:00,810 INFO L225 Difference]: With dead ends: 1488 [2018-03-28 13:16:00,810 INFO L226 Difference]: Without dead ends: 1291 [2018-03-28 13:16:00,812 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2274 GetRequests, 2089 SyntacticMatches, 27 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6806 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=3793, Invalid=21647, Unknown=0, NotChecked=0, Total=25440 [2018-03-28 13:16:00,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2018-03-28 13:16:00,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 1280. [2018-03-28 13:16:00,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1280 states. [2018-03-28 13:16:00,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1288 transitions. [2018-03-28 13:16:00,836 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1288 transitions. Word has length 1099 [2018-03-28 13:16:00,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:16:00,836 INFO L459 AbstractCegarLoop]: Abstraction has 1280 states and 1288 transitions. [2018-03-28 13:16:00,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 83 states. [2018-03-28 13:16:00,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1288 transitions. [2018-03-28 13:16:00,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1228 [2018-03-28 13:16:00,844 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:16:00,845 INFO L355 BasicCegarLoop]: trace histogram [119, 106, 105, 105, 105, 105, 105, 105, 105, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:16:00,845 INFO L408 AbstractCegarLoop]: === Iteration 41 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:16:00,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1640732083, now seen corresponding path program 25 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:16:00,851 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:16:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:16:01,052 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:16:02,279 INFO L134 CoverageAnalysis]: Checked inductivity of 53888 backedges. 22697 proven. 618 refuted. 0 times theorem prover too weak. 30573 trivial. 0 not checked. [2018-03-28 13:16:02,294 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:16:04,053 INFO L134 CoverageAnalysis]: Checked inductivity of 53888 backedges. 22697 proven. 618 refuted. 0 times theorem prover too weak. 30573 trivial. 0 not checked. [2018-03-28 13:16:04,075 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:16:04,075 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 80 [2018-03-28 13:16:04,077 INFO L442 AbstractCegarLoop]: Interpolant automaton has 80 states [2018-03-28 13:16:04,077 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2018-03-28 13:16:04,077 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=835, Invalid=5485, Unknown=0, NotChecked=0, Total=6320 [2018-03-28 13:16:04,078 INFO L87 Difference]: Start difference. First operand 1280 states and 1288 transitions. Second operand 80 states. [2018-03-28 13:16:05,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:16:05,725 INFO L93 Difference]: Finished difference Result 1493 states and 1508 transitions. [2018-03-28 13:16:05,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2018-03-28 13:16:05,725 INFO L78 Accepts]: Start accepts. Automaton has 80 states. Word has length 1227 [2018-03-28 13:16:05,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:16:05,728 INFO L225 Difference]: With dead ends: 1493 [2018-03-28 13:16:05,728 INFO L226 Difference]: Without dead ends: 1290 [2018-03-28 13:16:05,730 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2515 GetRequests, 2349 SyntacticMatches, 27 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7637 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=3061, Invalid=16679, Unknown=0, NotChecked=0, Total=19740 [2018-03-28 13:16:05,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2018-03-28 13:16:05,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 1280. [2018-03-28 13:16:05,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1280 states. [2018-03-28 13:16:05,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1286 transitions. [2018-03-28 13:16:05,753 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1286 transitions. Word has length 1227 [2018-03-28 13:16:05,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:16:05,754 INFO L459 AbstractCegarLoop]: Abstraction has 1280 states and 1286 transitions. [2018-03-28 13:16:05,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 80 states. [2018-03-28 13:16:05,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1286 transitions. [2018-03-28 13:16:05,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1237 [2018-03-28 13:16:05,764 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:16:05,765 INFO L355 BasicCegarLoop]: trace histogram [120, 107, 106, 106, 106, 106, 106, 106, 106, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:16:05,765 INFO L408 AbstractCegarLoop]: === Iteration 42 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:16:05,765 INFO L82 PathProgramCache]: Analyzing trace with hash -116185139, now seen corresponding path program 26 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:16:05,771 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:16:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:16:05,970 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:16:07,315 INFO L134 CoverageAnalysis]: Checked inductivity of 54862 backedges. 14028 proven. 832 refuted. 0 times theorem prover too weak. 40002 trivial. 0 not checked. [2018-03-28 13:16:07,315 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:16:08,866 INFO L134 CoverageAnalysis]: Checked inductivity of 54862 backedges. 14028 proven. 832 refuted. 0 times theorem prover too weak. 40002 trivial. 0 not checked. [2018-03-28 13:16:08,888 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:16:08,888 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 60] total 89 [2018-03-28 13:16:08,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 89 states [2018-03-28 13:16:08,890 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2018-03-28 13:16:08,890 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=6842, Unknown=0, NotChecked=0, Total=7832 [2018-03-28 13:16:08,890 INFO L87 Difference]: Start difference. First operand 1280 states and 1286 transitions. Second operand 89 states. [2018-03-28 13:16:11,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:16:11,475 INFO L93 Difference]: Finished difference Result 1614 states and 1627 transitions. [2018-03-28 13:16:11,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2018-03-28 13:16:11,476 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 1236 [2018-03-28 13:16:11,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:16:11,479 INFO L225 Difference]: With dead ends: 1614 [2018-03-28 13:16:11,479 INFO L226 Difference]: Without dead ends: 1427 [2018-03-28 13:16:11,481 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2554 GetRequests, 2355 SyntacticMatches, 29 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7925 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=4350, Invalid=25062, Unknown=0, NotChecked=0, Total=29412 [2018-03-28 13:16:11,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2018-03-28 13:16:11,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1416. [2018-03-28 13:16:11,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1416 states. [2018-03-28 13:16:11,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 1422 transitions. [2018-03-28 13:16:11,505 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 1422 transitions. Word has length 1236 [2018-03-28 13:16:11,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:16:11,506 INFO L459 AbstractCegarLoop]: Abstraction has 1416 states and 1422 transitions. [2018-03-28 13:16:11,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 89 states. [2018-03-28 13:16:11,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 1422 transitions. [2018-03-28 13:16:11,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1374 [2018-03-28 13:16:11,515 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:16:11,516 INFO L355 BasicCegarLoop]: trace histogram [134, 120, 119, 119, 119, 119, 119, 119, 119, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:16:11,516 INFO L408 AbstractCegarLoop]: === Iteration 43 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:16:11,516 INFO L82 PathProgramCache]: Analyzing trace with hash -823848895, now seen corresponding path program 27 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:16:11,522 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:16:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:16:11,744 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:16:13,169 INFO L134 CoverageAnalysis]: Checked inductivity of 68852 backedges. 27107 proven. 728 refuted. 0 times theorem prover too weak. 41017 trivial. 0 not checked. [2018-03-28 13:16:13,169 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:16:14,957 INFO L134 CoverageAnalysis]: Checked inductivity of 68852 backedges. 27107 proven. 728 refuted. 0 times theorem prover too weak. 41017 trivial. 0 not checked. [2018-03-28 13:16:14,978 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:16:14,979 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 86 [2018-03-28 13:16:14,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 86 states [2018-03-28 13:16:14,980 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2018-03-28 13:16:14,981 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=955, Invalid=6355, Unknown=0, NotChecked=0, Total=7310 [2018-03-28 13:16:14,981 INFO L87 Difference]: Start difference. First operand 1416 states and 1422 transitions. Second operand 86 states. [2018-03-28 13:16:16,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:16:16,621 INFO L93 Difference]: Finished difference Result 1619 states and 1629 transitions. [2018-03-28 13:16:16,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2018-03-28 13:16:16,622 INFO L78 Accepts]: Start accepts. Automaton has 86 states. Word has length 1373 [2018-03-28 13:16:16,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:16:16,625 INFO L225 Difference]: With dead ends: 1619 [2018-03-28 13:16:16,626 INFO L226 Difference]: Without dead ends: 1426 [2018-03-28 13:16:16,628 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2812 GetRequests, 2633 SyntacticMatches, 29 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8943 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=3535, Invalid=19417, Unknown=0, NotChecked=0, Total=22952 [2018-03-28 13:16:16,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2018-03-28 13:16:16,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1416. [2018-03-28 13:16:16,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1416 states. [2018-03-28 13:16:16,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 1420 transitions. [2018-03-28 13:16:16,652 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 1420 transitions. Word has length 1373 [2018-03-28 13:16:16,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:16:16,653 INFO L459 AbstractCegarLoop]: Abstraction has 1416 states and 1420 transitions. [2018-03-28 13:16:16,653 INFO L460 AbstractCegarLoop]: Interpolant automaton has 86 states. [2018-03-28 13:16:16,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 1420 transitions. [2018-03-28 13:16:16,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1383 [2018-03-28 13:16:16,662 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:16:16,663 INFO L355 BasicCegarLoop]: trace histogram [135, 121, 120, 120, 120, 120, 120, 120, 120, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:16:16,663 INFO L408 AbstractCegarLoop]: === Iteration 44 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:16:16,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1169427367, now seen corresponding path program 28 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:16:16,669 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:16:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:16:16,906 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:16:18,472 INFO L134 CoverageAnalysis]: Checked inductivity of 69954 backedges. 15998 proven. 966 refuted. 0 times theorem prover too weak. 52990 trivial. 0 not checked. [2018-03-28 13:16:18,472 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:16:20,265 INFO L134 CoverageAnalysis]: Checked inductivity of 69954 backedges. 15998 proven. 966 refuted. 0 times theorem prover too weak. 52990 trivial. 0 not checked. [2018-03-28 13:16:20,287 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:16:20,287 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64] total 95 [2018-03-28 13:16:20,288 INFO L442 AbstractCegarLoop]: Interpolant automaton has 95 states [2018-03-28 13:16:20,289 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2018-03-28 13:16:20,289 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1120, Invalid=7810, Unknown=0, NotChecked=0, Total=8930 [2018-03-28 13:16:20,289 INFO L87 Difference]: Start difference. First operand 1416 states and 1420 transitions. Second operand 95 states. [2018-03-28 13:16:23,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:16:23,349 INFO L93 Difference]: Finished difference Result 1758 states and 1769 transitions. [2018-03-28 13:16:23,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2018-03-28 13:16:23,349 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 1382 [2018-03-28 13:16:23,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:16:23,353 INFO L225 Difference]: With dead ends: 1758 [2018-03-28 13:16:23,353 INFO L226 Difference]: Without dead ends: 1579 [2018-03-28 13:16:23,355 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2852 GetRequests, 2639 SyntacticMatches, 31 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9129 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=4945, Invalid=28727, Unknown=0, NotChecked=0, Total=33672 [2018-03-28 13:16:23,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2018-03-28 13:16:23,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1563. [2018-03-28 13:16:23,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1563 states. [2018-03-28 13:16:23,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 1568 transitions. [2018-03-28 13:16:23,384 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 1568 transitions. Word has length 1382 [2018-03-28 13:16:23,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:16:23,384 INFO L459 AbstractCegarLoop]: Abstraction has 1563 states and 1568 transitions. [2018-03-28 13:16:23,384 INFO L460 AbstractCegarLoop]: Interpolant automaton has 95 states. [2018-03-28 13:16:23,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 1568 transitions. [2018-03-28 13:16:23,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1393 [2018-03-28 13:16:23,394 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:16:23,394 INFO L355 BasicCegarLoop]: trace histogram [134, 119, 119, 119, 119, 119, 119, 119, 119, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:16:23,394 INFO L408 AbstractCegarLoop]: === Iteration 45 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:16:23,395 INFO L82 PathProgramCache]: Analyzing trace with hash -670266128, now seen corresponding path program 7 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:16:23,400 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:16:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:16:23,619 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:16:25,201 INFO L134 CoverageAnalysis]: Checked inductivity of 68889 backedges. 15024 proven. 847 refuted. 0 times theorem prover too weak. 53018 trivial. 0 not checked. [2018-03-28 13:16:25,201 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:16:27,069 INFO L134 CoverageAnalysis]: Checked inductivity of 68889 backedges. 15024 proven. 847 refuted. 0 times theorem prover too weak. 53018 trivial. 0 not checked. [2018-03-28 13:16:27,092 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:16:27,092 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62] total 92 [2018-03-28 13:16:27,093 INFO L442 AbstractCegarLoop]: Interpolant automaton has 92 states [2018-03-28 13:16:27,093 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2018-03-28 13:16:27,094 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1083, Invalid=7289, Unknown=0, NotChecked=0, Total=8372 [2018-03-28 13:16:27,094 INFO L87 Difference]: Start difference. First operand 1563 states and 1568 transitions. Second operand 92 states. [2018-03-28 13:16:28,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:16:28,738 INFO L93 Difference]: Finished difference Result 1762 states and 1770 transitions. [2018-03-28 13:16:28,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2018-03-28 13:16:28,739 INFO L78 Accepts]: Start accepts. Automaton has 92 states. Word has length 1392 [2018-03-28 13:16:28,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:16:28,742 INFO L225 Difference]: With dead ends: 1762 [2018-03-28 13:16:28,743 INFO L226 Difference]: Without dead ends: 1577 [2018-03-28 13:16:28,744 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2855 GetRequests, 2663 SyntacticMatches, 31 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10352 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=4043, Invalid=22363, Unknown=0, NotChecked=0, Total=26406 [2018-03-28 13:16:28,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1577 states. [2018-03-28 13:16:28,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1577 to 1563. [2018-03-28 13:16:28,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1563 states. [2018-03-28 13:16:28,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 1566 transitions. [2018-03-28 13:16:28,773 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 1566 transitions. Word has length 1392 [2018-03-28 13:16:28,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:16:28,773 INFO L459 AbstractCegarLoop]: Abstraction has 1563 states and 1566 transitions. [2018-03-28 13:16:28,773 INFO L460 AbstractCegarLoop]: Interpolant automaton has 92 states. [2018-03-28 13:16:28,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 1566 transitions. [2018-03-28 13:16:28,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1402 [2018-03-28 13:16:28,783 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:16:28,784 INFO L355 BasicCegarLoop]: trace histogram [135, 120, 120, 120, 120, 120, 120, 120, 120, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:16:28,784 INFO L408 AbstractCegarLoop]: === Iteration 46 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:16:28,784 INFO L82 PathProgramCache]: Analyzing trace with hash 884608576, now seen corresponding path program 8 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:16:28,790 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:16:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:16:29,013 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:16:29,813 INFO L134 CoverageAnalysis]: Checked inductivity of 69990 backedges. 0 proven. 1080 refuted. 0 times theorem prover too weak. 68910 trivial. 0 not checked. [2018-03-28 13:16:29,813 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:16:30,967 INFO L134 CoverageAnalysis]: Checked inductivity of 69990 backedges. 0 proven. 1080 refuted. 0 times theorem prover too weak. 68910 trivial. 0 not checked. [2018-03-28 13:16:31,009 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:16:31,010 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 64 [2018-03-28 13:16:31,012 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-03-28 13:16:31,012 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-03-28 13:16:31,013 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1056, Invalid=2976, Unknown=0, NotChecked=0, Total=4032 [2018-03-28 13:16:31,013 INFO L87 Difference]: Start difference. First operand 1563 states and 1566 transitions. Second operand 64 states. [2018-03-28 13:16:32,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:16:32,376 INFO L93 Difference]: Finished difference Result 1751 states and 1785 transitions. [2018-03-28 13:16:32,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2018-03-28 13:16:32,376 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 1401 [2018-03-28 13:16:32,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:16:32,384 INFO L225 Difference]: With dead ends: 1751 [2018-03-28 13:16:32,384 INFO L226 Difference]: Without dead ends: 1731 [2018-03-28 13:16:32,385 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2861 GetRequests, 2739 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3257 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=4867, Invalid=10385, Unknown=0, NotChecked=0, Total=15252 [2018-03-28 13:16:32,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2018-03-28 13:16:32,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1721. [2018-03-28 13:16:32,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1721 states. [2018-03-28 13:16:32,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 1739 transitions. [2018-03-28 13:16:32,422 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 1739 transitions. Word has length 1401 [2018-03-28 13:16:32,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:16:32,423 INFO L459 AbstractCegarLoop]: Abstraction has 1721 states and 1739 transitions. [2018-03-28 13:16:32,423 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-03-28 13:16:32,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 1739 transitions. [2018-03-28 13:16:32,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1538 [2018-03-28 13:16:32,435 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:16:32,436 INFO L355 BasicCegarLoop]: trace histogram [151, 136, 135, 135, 135, 135, 135, 135, 135, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:16:32,436 INFO L408 AbstractCegarLoop]: === Iteration 47 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:16:32,437 INFO L82 PathProgramCache]: Analyzing trace with hash 747415349, now seen corresponding path program 29 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:16:32,457 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:16:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:16:32,725 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:16:33,715 INFO L134 CoverageAnalysis]: Checked inductivity of 88125 backedges. 17040 proven. 990 refuted. 0 times theorem prover too weak. 70095 trivial. 0 not checked. [2018-03-28 13:16:33,715 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:16:35,486 INFO L134 CoverageAnalysis]: Checked inductivity of 88125 backedges. 17040 proven. 990 refuted. 0 times theorem prover too weak. 70095 trivial. 0 not checked. [2018-03-28 13:16:35,509 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:16:35,509 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 63 [2018-03-28 13:16:35,510 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-03-28 13:16:35,510 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-03-28 13:16:35,511 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=606, Invalid=3426, Unknown=0, NotChecked=0, Total=4032 [2018-03-28 13:16:35,511 INFO L87 Difference]: Start difference. First operand 1721 states and 1739 transitions. Second operand 64 states. [2018-03-28 13:16:37,420 WARN L151 SmtUtils]: Spent 100ms on a formula simplification. DAG size of input: 124 DAG size of output 12 [2018-03-28 13:16:41,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:16:41,368 INFO L93 Difference]: Finished difference Result 1934 states and 2223 transitions. [2018-03-28 13:16:41,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2018-03-28 13:16:41,368 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 1537 [2018-03-28 13:16:41,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:16:41,373 INFO L225 Difference]: With dead ends: 1934 [2018-03-28 13:16:41,374 INFO L226 Difference]: Without dead ends: 1933 [2018-03-28 13:16:41,375 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3161 GetRequests, 3025 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3452 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=4624, Invalid=14282, Unknown=0, NotChecked=0, Total=18906 [2018-03-28 13:16:41,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1933 states. [2018-03-28 13:16:41,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1933 to 1864. [2018-03-28 13:16:41,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1864 states. [2018-03-28 13:16:41,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1864 states to 1864 states and 1913 transitions. [2018-03-28 13:16:41,432 INFO L78 Accepts]: Start accepts. Automaton has 1864 states and 1913 transitions. Word has length 1537 [2018-03-28 13:16:41,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:16:41,433 INFO L459 AbstractCegarLoop]: Abstraction has 1864 states and 1913 transitions. [2018-03-28 13:16:41,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-03-28 13:16:41,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1864 states and 1913 transitions. [2018-03-28 13:16:41,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1539 [2018-03-28 13:16:41,446 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:16:41,446 INFO L355 BasicCegarLoop]: trace histogram [151, 136, 136, 135, 135, 135, 135, 135, 135, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:16:41,446 INFO L408 AbstractCegarLoop]: === Iteration 48 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-03-28 13:16:41,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1695039452, now seen corresponding path program 4 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:16:41,454 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:16:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:16:41,742 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:16:41,745 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 13:16:41,745 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:16:41,748 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:16:41,748 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-28 13:16:45,617 INFO L134 CoverageAnalysis]: Checked inductivity of 88260 backedges. 17235 proven. 1005 refuted. 0 times theorem prover too weak. 70020 trivial. 0 not checked. [2018-03-28 13:16:45,617 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:16:48,014 INFO L134 CoverageAnalysis]: Checked inductivity of 88260 backedges. 17235 proven. 1005 refuted. 0 times theorem prover too weak. 70020 trivial. 0 not checked. [2018-03-28 13:16:48,036 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:16:48,037 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 35] total 70 [2018-03-28 13:16:48,038 INFO L442 AbstractCegarLoop]: Interpolant automaton has 71 states [2018-03-28 13:16:48,038 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2018-03-28 13:16:48,038 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=719, Invalid=4251, Unknown=0, NotChecked=0, Total=4970 [2018-03-28 13:16:48,039 INFO L87 Difference]: Start difference. First operand 1864 states and 1913 transitions. Second operand 71 states. [2018-03-28 13:16:51,331 WARN L151 SmtUtils]: Spent 107ms on a formula simplification. DAG size of input: 130 DAG size of output 27 [2018-03-28 13:16:51,732 WARN L151 SmtUtils]: Spent 137ms on a formula simplification. DAG size of input: 126 DAG size of output 26 Received shutdown request... [2018-03-28 13:16:56,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2018-03-28 13:16:56,605 WARN L519 AbstractCegarLoop]: Verification canceled [2018-03-28 13:16:56,608 WARN L197 ceAbstractionStarter]: Timeout [2018-03-28 13:16:56,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 01:16:56 BoogieIcfgContainer [2018-03-28 13:16:56,609 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-28 13:16:56,609 INFO L168 Benchmark]: Toolchain (without parser) took 121354.40 ms. Allocated memory was 306.7 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 250.3 MB in the beginning and 1.9 GB in the end (delta: -1.7 GB). Peak memory consumption was 309.5 MB. Max. memory is 5.3 GB. [2018-03-28 13:16:56,610 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 306.7 MB. Free memory is still 268.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-28 13:16:56,611 INFO L168 Benchmark]: CACSL2BoogieTranslator took 197.07 ms. Allocated memory is still 306.7 MB. Free memory was 249.3 MB in the beginning and 240.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 5.3 GB. [2018-03-28 13:16:56,611 INFO L168 Benchmark]: Boogie Preprocessor took 29.14 ms. Allocated memory is still 306.7 MB. Free memory was 240.3 MB in the beginning and 238.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-03-28 13:16:56,611 INFO L168 Benchmark]: RCFGBuilder took 321.18 ms. Allocated memory was 306.7 MB in the beginning and 464.0 MB in the end (delta: 157.3 MB). Free memory was 238.4 MB in the beginning and 429.5 MB in the end (delta: -191.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 5.3 GB. [2018-03-28 13:16:56,612 INFO L168 Benchmark]: TraceAbstraction took 120801.11 ms. Allocated memory was 464.0 MB in the beginning and 2.3 GB in the end (delta: 1.8 GB). Free memory was 429.5 MB in the beginning and 1.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 331.4 MB. Max. memory is 5.3 GB. [2018-03-28 13:16:56,615 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 306.7 MB. Free memory is still 268.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 197.07 ms. Allocated memory is still 306.7 MB. Free memory was 249.3 MB in the beginning and 240.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 29.14 ms. Allocated memory is still 306.7 MB. Free memory was 240.3 MB in the beginning and 238.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 321.18 ms. Allocated memory was 306.7 MB in the beginning and 464.0 MB in the end (delta: 157.3 MB). Free memory was 238.4 MB in the beginning and 429.5 MB in the end (delta: -191.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 120801.11 ms. Allocated memory was 464.0 MB in the beginning and 2.3 GB in the end (delta: 1.8 GB). Free memory was 429.5 MB in the beginning and 1.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 331.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 30]: Timeout (TraceAbstraction) Unable to prove that array index is always in bounds (line 30). Cancelled while BasicCegarLoop was constructing difference of abstraction (1864states) and interpolant automaton (currently 84 states, 71 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 53. - TimeoutResultAtElement [Line: 23]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 23). Cancelled while BasicCegarLoop was constructing difference of abstraction (1864states) and interpolant automaton (currently 84 states, 71 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 53. - TimeoutResultAtElement [Line: 27]: Timeout (TraceAbstraction) Unable to prove that array index is always in bounds (line 27). Cancelled while BasicCegarLoop was constructing difference of abstraction (1864states) and interpolant automaton (currently 84 states, 71 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 53. - TimeoutResultAtElement [Line: 18]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 18). Cancelled while BasicCegarLoop was constructing difference of abstraction (1864states) and interpolant automaton (currently 84 states, 71 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 53. - TimeoutResultAtElement [Line: 18]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 18). Cancelled while BasicCegarLoop was constructing difference of abstraction (1864states) and interpolant automaton (currently 84 states, 71 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 53. - TimeoutResultAtElement [Line: 18]: Timeout (TraceAbstraction) Unable to prove that array index is always in bounds (line 18). Cancelled while BasicCegarLoop was constructing difference of abstraction (1864states) and interpolant automaton (currently 84 states, 71 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 53. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 61 locations, 6 error locations. TIMEOUT Result, 120.7s OverallTime, 48 OverallIterations, 151 TraceHistogramMax, 56.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3638 SDtfs, 13044 SDslu, 44236 SDs, 0 SdLazy, 43446 SolverSat, 3002 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52472 GetRequests, 48386 SyntacticMatches, 563 SemanticMatches, 3522 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118556 ImplicationChecksByTransitivity, 65.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1864occurred in iteration=47, 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: 0.8s AutomataMinimizationTime, 47 MinimizatonAttempts, 646 StatesRemovedByMinimization, 46 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.9s SsaConstructionTime, 3.4s SatisfiabilityAnalysisTime, 57.1s InterpolantComputationTime, 25419 NumberOfCodeBlocks, 25419 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 50742 ConstructedInterpolants, 1655 QuantifiedInterpolants, 105387694 SizeOfPredicates, 1143 NumberOfNonLiveVariables, 46542 ConjunctsInSsa, 1394 ConjunctsInUnsatCore, 96 InterpolantComputations, 15 PerfectInterpolantSequences, 1713356/1739606 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/ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-28_13-16-56-624.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-03-28_13-16-56-624.csv Completed graceful shutdown