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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength5_true-valid-memsafety.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8168ed2-m [2018-04-12 04:08:12,881 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-12 04:08:12,883 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-12 04:08:12,896 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-12 04:08:12,897 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-12 04:08:12,898 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-12 04:08:12,899 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-12 04:08:12,901 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-12 04:08:12,903 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-12 04:08:12,904 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-12 04:08:12,905 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-12 04:08:12,905 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-12 04:08:12,906 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-12 04:08:12,908 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-12 04:08:12,909 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-12 04:08:12,911 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-12 04:08:12,913 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-12 04:08:12,915 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-12 04:08:12,917 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-12 04:08:12,918 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-12 04:08:12,921 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-12 04:08:12,921 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-12 04:08:12,921 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-12 04:08:12,922 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-12 04:08:12,923 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-12 04:08:12,925 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-12 04:08:12,925 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-12 04:08:12,926 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-12 04:08:12,927 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-12 04:08:12,927 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-12 04:08:12,928 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-12 04:08:12,928 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-04-12 04:08:12,954 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-12 04:08:12,954 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-12 04:08:12,955 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-12 04:08:12,955 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-12 04:08:12,956 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-12 04:08:12,956 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-12 04:08:12,956 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-12 04:08:12,956 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-12 04:08:12,956 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-04-12 04:08:12,957 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-12 04:08:12,957 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-12 04:08:12,957 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-12 04:08:12,958 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-12 04:08:12,958 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-12 04:08:12,958 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-12 04:08:12,958 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-12 04:08:12,958 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-12 04:08:12,959 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-12 04:08:12,959 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-12 04:08:12,959 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-12 04:08:12,959 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-12 04:08:12,959 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-12 04:08:12,960 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-12 04:08:12,960 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-12 04:08:12,960 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-12 04:08:12,960 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-12 04:08:12,960 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-12 04:08:12,961 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-12 04:08:12,961 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-12 04:08:12,961 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-12 04:08:12,961 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-12 04:08:12,961 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-12 04:08:12,961 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-12 04:08:12,961 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-12 04:08:12,962 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-12 04:08:12,963 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-12 04:08:12,963 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-12 04:08:12,963 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-12 04:08:13,002 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-12 04:08:13,016 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-12 04:08:13,021 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-12 04:08:13,023 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-12 04:08:13,023 INFO L276 PluginConnector]: CDTParser initialized [2018-04-12 04:08:13,024 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength5_true-valid-memsafety.c [2018-04-12 04:08:13,402 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGdcb0ea68a [2018-04-12 04:08:13,550 INFO L287 CDTParser]: IsIndexed: true [2018-04-12 04:08:13,550 INFO L288 CDTParser]: Found 1 translation units. [2018-04-12 04:08:13,551 INFO L168 CDTParser]: Scanning ArraysOfVariableLength5_true-valid-memsafety.c [2018-04-12 04:08:13,552 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-12 04:08:13,552 INFO L215 ultiparseSymbolTable]: [2018-04-12 04:08:13,552 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-12 04:08:13,552 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo ('foo') in ArraysOfVariableLength5_true-valid-memsafety.c [2018-04-12 04:08:13,552 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength5_true-valid-memsafety.c [2018-04-12 04:08:13,553 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-12 04:08:13,553 INFO L233 ultiparseSymbolTable]: [2018-04-12 04:08:13,713 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGdcb0ea68a [2018-04-12 04:08:13,719 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-12 04:08:13,721 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-04-12 04:08:13,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-12 04:08:13,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-12 04:08:13,728 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-12 04:08:13,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.04 04:08:13" (1/1) ... [2018-04-12 04:08:13,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f04b09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 04:08:13, skipping insertion in model container [2018-04-12 04:08:13,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.04 04:08:13" (1/1) ... [2018-04-12 04:08:13,748 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-12 04:08:13,762 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-12 04:08:13,904 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-12 04:08:13,932 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-12 04:08:13,938 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-12 04:08:13,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 04:08:13 WrapperNode [2018-04-12 04:08:13,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-12 04:08:13,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-12 04:08:13,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-12 04:08:13,949 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-12 04:08:13,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 04:08:13" (1/1) ... [2018-04-12 04:08:13,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 04:08:13" (1/1) ... [2018-04-12 04:08:13,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 04:08:13" (1/1) ... [2018-04-12 04:08:13,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 04:08:13" (1/1) ... [2018-04-12 04:08:13,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 04:08:13" (1/1) ... [2018-04-12 04:08:13,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 04:08:13" (1/1) ... [2018-04-12 04:08:13,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 04:08:13" (1/1) ... [2018-04-12 04:08:13,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-12 04:08:13,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-12 04:08:13,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-12 04:08:13,986 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-12 04:08:13,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 04:08:13" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-12 04:08:14,052 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-12 04:08:14,052 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-12 04:08:14,052 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo [2018-04-12 04:08:14,053 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-12 04:08:14,053 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo [2018-04-12 04:08:14,053 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-12 04:08:14,053 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-12 04:08:14,053 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-12 04:08:14,053 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-12 04:08:14,053 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-12 04:08:14,053 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-12 04:08:14,054 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-12 04:08:14,054 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-12 04:08:14,345 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-12 04:08:14,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.04 04:08:14 BoogieIcfgContainer [2018-04-12 04:08:14,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-12 04:08:14,346 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-04-12 04:08:14,347 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-04-12 04:08:14,348 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-04-12 04:08:14,352 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.04 04:08:14" (1/1) ... [2018-04-12 04:08:14,362 INFO L139 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-04-12 04:08:14,362 INFO L140 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-04-12 04:08:14,383 INFO L299 apSepIcfgTransformer]: Heap separator: starting memloc-array-style preprocessing [2018-04-12 04:08:14,396 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-12 04:08:14,397 INFO L332 apSepIcfgTransformer]: finished MemlocArrayUpdater, created 0 location literals (each corresponds to one heap write) [2018-04-12 04:08:14,404 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-12 04:08:14,407 INFO L412 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-04-12 04:08:14,408 DEBUG L416 apSepIcfgTransformer]: storeIndexInfoToLocLiteral: Map: [2018-04-12 04:08:14,409 DEBUG L418 apSepIcfgTransformer]: edgeToIndexToStoreIndexInfo: NestedMap2: [2018-04-12 04:08:14,461 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-04-12 04:08:17,831 INFO L314 AbstractInterpreter]: Visited 71 different actions 195 times. Merged at 47 different actions 85 times. Never widened. Found 11 fixpoints after 6 different actions. Largest state had 21 variables. [2018-04-12 04:08:17,834 INFO L424 apSepIcfgTransformer]: finished equality analysis [2018-04-12 04:08:17,844 INFO L195 HeapSepPreAnalysis]: Number of read from array group [#memory_int] : 1 [2018-04-12 04:08:17,844 INFO L434 apSepIcfgTransformer]: Finished pre analysis before partitioning [2018-04-12 04:08:17,845 INFO L435 apSepIcfgTransformer]: array groups: Set: [#memory_int] [2018-04-12 04:08:17,845 INFO L437 apSepIcfgTransformer]: select infos: Set: ((select (select |v_#memory_int_1| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_2) (+ v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset_2 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_6)), at (SUMMARY for call #t~mem1 := read~int(~b.base, ~b.offset + ~i~0 * 1, 1); srcloc: L16')) [2018-04-12 04:08:17,849 DEBUG L373 HeapPartitionManager]: creating LocationBlock locs_30 [2018-04-12 04:08:17,850 DEBUG L374 HeapPartitionManager]: with contents [NoStoreIndexInfo] [2018-04-12 04:08:17,850 DEBUG L323 HeapPartitionManager]: adding LocationBlock locs_30 [2018-04-12 04:08:17,850 DEBUG L324 HeapPartitionManager]: at dimension 0 for ((select (select |v_#memory_int_1| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_2) (+ v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset_2 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_6)), at (SUMMARY for call #t~mem1 := read~int(~b.base, ~b.offset + ~i~0 * 1, 1); srcloc: L16')) [2018-04-12 04:08:17,850 DEBUG L325 HeapPartitionManager]: write locations: [NoStoreIndexInfo] [2018-04-12 04:08:17,850 DEBUG L373 HeapPartitionManager]: creating LocationBlock locs_30 [2018-04-12 04:08:17,850 DEBUG L374 HeapPartitionManager]: with contents [NoStoreIndexInfo] [2018-04-12 04:08:17,850 DEBUG L323 HeapPartitionManager]: adding LocationBlock locs_30 [2018-04-12 04:08:17,851 DEBUG L324 HeapPartitionManager]: at dimension 1 for ((select (select |v_#memory_int_1| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_2) (+ v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset_2 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_6)), at (SUMMARY for call #t~mem1 := read~int(~b.base, ~b.offset + ~i~0 * 1, 1); srcloc: L16')) [2018-04-12 04:08:17,851 DEBUG L325 HeapPartitionManager]: write locations: [NoStoreIndexInfo] [2018-04-12 04:08:17,851 INFO L330 HeapPartitionManager]: partitioning result: [2018-04-12 04:08:17,851 INFO L335 HeapPartitionManager]: location blocks for array group [#memory_int] [2018-04-12 04:08:17,851 INFO L344 HeapPartitionManager]: at dimension 0 [2018-04-12 04:08:17,851 INFO L345 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-04-12 04:08:17,852 INFO L346 HeapPartitionManager]: # location blocks :1 [2018-04-12 04:08:17,852 DEBUG L353 HeapPartitionManager]: location block contents: [2018-04-12 04:08:17,852 DEBUG L356 HeapPartitionManager]: [NoStoreIndexInfo] [2018-04-12 04:08:17,852 INFO L344 HeapPartitionManager]: at dimension 1 [2018-04-12 04:08:17,852 INFO L345 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-04-12 04:08:17,852 INFO L346 HeapPartitionManager]: # location blocks :1 [2018-04-12 04:08:17,852 DEBUG L353 HeapPartitionManager]: location block contents: [2018-04-12 04:08:17,852 DEBUG L356 HeapPartitionManager]: [NoStoreIndexInfo] [2018-04-12 04:08:17,853 INFO L134 ransitionTransformer]: executing heap partitioning transformation [2018-04-12 04:08:17,857 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,857 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,857 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,857 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,858 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,858 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,858 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,858 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,859 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,859 DEBUG L331 ransitionTransformer]: Formula: (and (= |v_#NULL.offset_1| 0) (= |v_#NULL.base_1| 0)) InVars {} OutVars{#NULL.offset=|v_#NULL.offset_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] [2018-04-12 04:08:17,859 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,860 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,860 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,860 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,861 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,861 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,861 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,861 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,861 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-12 04:08:17,862 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-12 04:08:17,862 DEBUG L356 ransitionTransformer]: {main_~i~1=v_main_~i~1_9} [2018-04-12 04:08:17,862 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-12 04:08:17,862 DEBUG L358 ransitionTransformer]: {} [2018-04-12 04:08:17,862 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,863 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,863 DEBUG L331 ransitionTransformer]: Formula: (= |v_#valid_1| (store |v_#valid_2| 0 0)) InVars {#valid=|v_#valid_2|} OutVars{#valid=|v_#valid_1|} AuxVars[] AssignedVars[#valid] [2018-04-12 04:08:17,863 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,863 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,864 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,864 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,864 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-12 04:08:17,864 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-12 04:08:17,864 DEBUG L356 ransitionTransformer]: {main_~b~0=v_main_~b~0_3} [2018-04-12 04:08:17,865 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-12 04:08:17,865 DEBUG L358 ransitionTransformer]: {} [2018-04-12 04:08:17,865 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,865 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,865 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,866 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,866 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,866 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,866 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,866 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-12 04:08:17,867 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-12 04:08:17,867 DEBUG L356 ransitionTransformer]: {main_~buffer~0=v_main_~buffer~0_1} [2018-04-12 04:08:17,867 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-12 04:08:17,867 DEBUG L358 ransitionTransformer]: {} [2018-04-12 04:08:17,867 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,868 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,868 DEBUG L331 ransitionTransformer]: Formula: (and (= 0 (select |v_#valid_16| |v_main_~#mask~0.base_5|)) (= |v_#length_5| (store |v_#length_6| |v_main_~#mask~0.base_5| 32)) (= 0 |v_main_~#mask~0.offset_5|) (not (= 0 |v_main_~#mask~0.base_5|)) (= |v_#valid_15| (store |v_#valid_16| |v_main_~#mask~0.base_5| 1))) InVars {#length=|v_#length_6|, #valid=|v_#valid_16|} OutVars{#length=|v_#length_5|, main_~#mask~0.base=|v_main_~#mask~0.base_5|, main_~#mask~0.offset=|v_main_~#mask~0.offset_5|, #valid=|v_#valid_15|} AuxVars[] AssignedVars[main_~#mask~0.base, main_~#mask~0.offset, #valid, #length] [2018-04-12 04:08:17,868 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,869 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,869 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,869 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,869 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-12 04:08:17,869 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-12 04:08:17,870 DEBUG L356 ransitionTransformer]: {main_~c~0.base=v_main_~c~0.base_1, main_~c~0.offset=v_main_~c~0.offset_1} [2018-04-12 04:08:17,870 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-12 04:08:17,870 DEBUG L358 ransitionTransformer]: {} [2018-04-12 04:08:17,870 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,871 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,871 DEBUG L331 ransitionTransformer]: Formula: (= v_main_~i~1_10 0) InVars {} OutVars{main_~i~1=v_main_~i~1_10} AuxVars[] AssignedVars[main_~i~1] [2018-04-12 04:08:17,871 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,871 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,871 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,872 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,872 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,872 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,872 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,872 DEBUG L331 ransitionTransformer]: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,873 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,873 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,874 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,874 DEBUG L331 ransitionTransformer]: Formula: (not (< v_main_~i~1_11 32)) InVars {main_~i~1=v_main_~i~1_11} OutVars{main_~i~1=v_main_~i~1_11} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,874 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,874 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,875 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,875 DEBUG L331 ransitionTransformer]: Formula: (< v_main_~i~1_12 32) InVars {main_~i~1=v_main_~i~1_12} OutVars{main_~i~1=v_main_~i~1_12} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,875 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,875 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,876 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,876 DEBUG L331 ransitionTransformer]: Formula: (= v_main_~i~1_1 0) InVars {} OutVars{main_~i~1=v_main_~i~1_1} AuxVars[] AssignedVars[main_~i~1] [2018-04-12 04:08:17,876 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,876 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,877 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,877 DEBUG L331 ransitionTransformer]: Formula: (and (= v_main_~c~0.offset_2 |v_main_~#mask~0.offset_6|) (= v_main_~c~0.base_2 |v_main_~#mask~0.base_6|)) InVars {main_~#mask~0.offset=|v_main_~#mask~0.offset_6|, main_~#mask~0.base=|v_main_~#mask~0.base_6|} OutVars{main_~c~0.offset=v_main_~c~0.offset_2, main_~c~0.base=v_main_~c~0.base_2, main_~#mask~0.offset=|v_main_~#mask~0.offset_6|, main_~#mask~0.base=|v_main_~#mask~0.base_6|} AuxVars[] AssignedVars[main_~c~0.base, main_~c~0.offset] [2018-04-12 04:08:17,877 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,877 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,878 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,878 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,878 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,878 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,878 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,879 DEBUG L331 ransitionTransformer]: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,879 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,879 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,879 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,880 DEBUG L331 ransitionTransformer]: Formula: (or (not (< v_main_~i~1_13 32)) (not (<= 0 v_main_~i~1_13))) InVars {main_~i~1=v_main_~i~1_13} OutVars{main_~i~1=v_main_~i~1_13} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,880 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,880 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,880 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,880 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,881 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,881 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,881 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,881 DEBUG L331 ransitionTransformer]: Formula: (not (< v_main_~i~1_2 32)) InVars {main_~i~1=v_main_~i~1_2} OutVars{main_~i~1=v_main_~i~1_2} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,881 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,882 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,882 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,882 DEBUG L331 ransitionTransformer]: Formula: (< v_main_~i~1_3 32) InVars {main_~i~1=v_main_~i~1_3} OutVars{main_~i~1=v_main_~i~1_3} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,882 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,882 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,883 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,883 DEBUG L331 ransitionTransformer]: Formula: (= |v_main_#res_2| 0) InVars {} OutVars{main_#res=|v_main_#res_2|} AuxVars[] AssignedVars[main_#res] [2018-04-12 04:08:17,883 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,883 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,884 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,884 DEBUG L331 ransitionTransformer]: Formula: (and (= |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~sizeInParam_1| v_main_~i~1_18) (= |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.offsetInParam_1| v_main_~c~0.offset_4) (= |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.baseInParam_1| v_main_~c~0.base_4)) InVars {main_~c~0.offset=v_main_~c~0.offset_4, main_~i~1=v_main_~i~1_18, main_~c~0.base=v_main_~c~0.base_4} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.base=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.baseInParam_1|, main_~c~0.base=v_main_~c~0.base_4, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.offset=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.offsetInParam_1|, main_~c~0.offset=v_main_~c~0.offset_4, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~size=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~sizeInParam_1|, main_~i~1=v_main_~i~1_18} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.base, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.offset, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~size] [2018-04-12 04:08:17,884 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-12 04:08:17,884 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-12 04:08:17,884 DEBUG L356 ransitionTransformer]: {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.base=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.baseInParam_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.offset=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.offsetInParam_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~size=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~sizeInParam_1|} [2018-04-12 04:08:17,885 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-12 04:08:17,885 DEBUG L358 ransitionTransformer]: {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.base=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.baseInParam_1|, main_~c~0.base=v_main_~c~0.base_4, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.offset=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.offsetInParam_1|, main_~c~0.offset=v_main_~c~0.offset_4, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~size=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~sizeInParam_1|, main_~i~1=v_main_~i~1_18} [2018-04-12 04:08:17,885 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,885 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,886 DEBUG L331 ransitionTransformer]: Formula: (or (not (< v_main_~i~1_4 32)) (not (<= 0 v_main_~i~1_4))) InVars {main_~i~1=v_main_~i~1_4} OutVars{main_~i~1=v_main_~i~1_4} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,886 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,886 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,886 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,886 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,886 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,887 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,887 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,887 DEBUG L331 ransitionTransformer]: Formula: (= |v_#valid_11| (store |v_#valid_12| |v_main_~#mask~0.base_3| 0)) InVars {main_~#mask~0.base=|v_main_~#mask~0.base_3|, #valid=|v_#valid_12|} OutVars{main_~#mask~0.base=|v_main_~#mask~0.base_3|, #valid=|v_#valid_11|} AuxVars[] AssignedVars[#valid] [2018-04-12 04:08:17,887 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,888 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,888 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,888 DEBUG L331 ransitionTransformer]: Formula: (and (<= |v_main_#t~ret3_2| 2147483647) (<= 0 (+ |v_main_#t~ret3_2| 2147483648))) InVars {main_#t~ret3=|v_main_#t~ret3_2|} OutVars{main_#t~ret3=|v_main_#t~ret3_2|} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,888 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,889 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,889 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,889 DEBUG L331 ransitionTransformer]: Formula: (and (= v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_1 |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.base_1|) (= v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset_1 |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.offset_1|)) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.offset=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.offset_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.base=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.base_1|} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_1, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset_1, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.base=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.base_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.offset=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.offset_1|} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset] [2018-04-12 04:08:17,889 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,890 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,890 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,890 DEBUG L331 ransitionTransformer]: Formula: (not (= v_main_~i~1_5 (select v_main_~b~0_1 v_main_~i~1_5))) InVars {main_~b~0=v_main_~b~0_1, main_~i~1=v_main_~i~1_5} OutVars{main_~b~0=v_main_~b~0_1, main_~i~1=v_main_~i~1_5} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,890 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,890 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,891 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,891 DEBUG L331 ransitionTransformer]: Formula: (= v_main_~i~1_6 (select v_main_~b~0_2 v_main_~i~1_6)) InVars {main_~b~0=v_main_~b~0_2, main_~i~1=v_main_~i~1_6} OutVars{main_~b~0=v_main_~b~0_2, main_~i~1=v_main_~i~1_6} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,891 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,891 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,892 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,892 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,892 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-12 04:08:17,892 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-12 04:08:17,892 DEBUG L356 ransitionTransformer]: {main_~#mask~0.base=|v_main_~#mask~0.base_4|, main_~#mask~0.offset=|v_main_~#mask~0.offset_4|} [2018-04-12 04:08:17,892 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-12 04:08:17,893 DEBUG L358 ransitionTransformer]: {} [2018-04-12 04:08:17,893 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,893 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,893 DEBUG L331 ransitionTransformer]: Formula: (= v_main_~b~0_4 (store v_main_~b~0_5 v_main_~i~1_15 |v_main_#t~ret3_3|)) InVars {main_~i~1=v_main_~i~1_15, main_~b~0=v_main_~b~0_5, main_#t~ret3=|v_main_#t~ret3_3|} OutVars{main_~i~1=v_main_~i~1_15, main_~b~0=v_main_~b~0_4, main_#t~ret3=|v_main_#t~ret3_3|} AuxVars[] AssignedVars[main_~b~0] [2018-04-12 04:08:17,894 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,894 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,894 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,894 DEBUG L331 ransitionTransformer]: Formula: (= v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~size_1 |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~size_1|) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~size=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~size_1|} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~size=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~size_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~size=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~size_1} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~size] [2018-04-12 04:08:17,895 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,895 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,895 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,895 DEBUG L331 ransitionTransformer]: Formula: (= |v_main_#res_1| 1) InVars {} OutVars{main_#res=|v_main_#res_1|} AuxVars[] AssignedVars[main_#res] [2018-04-12 04:08:17,895 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,895 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,896 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,896 DEBUG L331 ransitionTransformer]: Formula: (= |v_main_#t~post4_1| v_main_~i~1_7) InVars {main_~i~1=v_main_~i~1_7} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~i~1=v_main_~i~1_7} AuxVars[] AssignedVars[main_#t~post4] [2018-04-12 04:08:17,896 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,896 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,897 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,897 DEBUG L331 ransitionTransformer]: Formula: (= |v_#valid_13| |old(#valid)|) InVars {#valid=|v_#valid_13|, old(#valid)=|old(#valid)|} OutVars{#valid=|v_#valid_13|, old(#valid)=|old(#valid)|} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,897 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,897 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,897 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,898 DEBUG L331 ransitionTransformer]: Formula: (not (= |v_#valid_14| |old(#valid)|)) InVars {#valid=|v_#valid_14|, old(#valid)=|old(#valid)|} OutVars{#valid=|v_#valid_14|, old(#valid)=|old(#valid)|} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,898 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,898 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,898 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,898 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,899 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-12 04:08:17,899 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-12 04:08:17,899 DEBUG L356 ransitionTransformer]: {main_#t~ret3=|v_main_#t~ret3_4|} [2018-04-12 04:08:17,899 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-12 04:08:17,899 DEBUG L358 ransitionTransformer]: {} [2018-04-12 04:08:17,899 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,900 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,900 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,900 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-12 04:08:17,900 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-12 04:08:17,900 DEBUG L356 ransitionTransformer]: {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~a~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~a~0_1} [2018-04-12 04:08:17,900 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-12 04:08:17,900 DEBUG L358 ransitionTransformer]: {} [2018-04-12 04:08:17,901 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,901 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,901 DEBUG L331 ransitionTransformer]: Formula: (= (store |v_#valid_10| |v_main_~#mask~0.base_1| 0) |v_#valid_9|) InVars {main_~#mask~0.base=|v_main_~#mask~0.base_1|, #valid=|v_#valid_10|} OutVars{main_~#mask~0.base=|v_main_~#mask~0.base_1|, #valid=|v_#valid_9|} AuxVars[] AssignedVars[#valid] [2018-04-12 04:08:17,901 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,902 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,902 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,902 DEBUG L331 ransitionTransformer]: Formula: (= v_main_~i~1_8 (+ |v_main_#t~post4_2| 1)) InVars {main_#t~post4=|v_main_#t~post4_2|} OutVars{main_#t~post4=|v_main_#t~post4_2|, main_~i~1=v_main_~i~1_8} AuxVars[] AssignedVars[main_~i~1] [2018-04-12 04:08:17,902 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,902 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,903 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,903 DEBUG L331 ransitionTransformer]: Formula: (= |v_main_#t~post2_1| v_main_~i~1_16) InVars {main_~i~1=v_main_~i~1_16} OutVars{main_~i~1=v_main_~i~1_16, main_#t~post2=|v_main_#t~post2_1|} AuxVars[] AssignedVars[main_#t~post2] [2018-04-12 04:08:17,903 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,903 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,903 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,904 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,904 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-12 04:08:17,904 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-12 04:08:17,904 DEBUG L356 ransitionTransformer]: {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_1} [2018-04-12 04:08:17,904 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-12 04:08:17,904 DEBUG L358 ransitionTransformer]: {} [2018-04-12 04:08:17,905 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,905 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,905 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,905 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-12 04:08:17,905 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-12 04:08:17,905 DEBUG L356 ransitionTransformer]: {main_~#mask~0.base=|v_main_~#mask~0.base_2|, main_~#mask~0.offset=|v_main_~#mask~0.offset_2|} [2018-04-12 04:08:17,906 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-12 04:08:17,906 DEBUG L358 ransitionTransformer]: {} [2018-04-12 04:08:17,906 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,906 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,906 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,907 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-12 04:08:17,907 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-12 04:08:17,907 DEBUG L356 ransitionTransformer]: {main_#t~post4=|v_main_#t~post4_3|} [2018-04-12 04:08:17,907 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-12 04:08:17,907 DEBUG L358 ransitionTransformer]: {} [2018-04-12 04:08:17,907 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,908 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,908 DEBUG L331 ransitionTransformer]: Formula: (= v_main_~i~1_17 (+ |v_main_#t~post2_2| 1)) InVars {main_#t~post2=|v_main_#t~post2_2|} OutVars{main_~i~1=v_main_~i~1_17, main_#t~post2=|v_main_#t~post2_2|} AuxVars[] AssignedVars[main_~i~1] [2018-04-12 04:08:17,908 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,908 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,909 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,909 DEBUG L331 ransitionTransformer]: Formula: (= v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_2 0) InVars {} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_2} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0] [2018-04-12 04:08:17,909 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,909 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,909 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,910 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,910 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-12 04:08:17,910 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-12 04:08:17,910 DEBUG L356 ransitionTransformer]: {main_#t~post2=|v_main_#t~post2_3|} [2018-04-12 04:08:17,910 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-12 04:08:17,910 DEBUG L358 ransitionTransformer]: {} [2018-04-12 04:08:17,911 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,911 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,911 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,911 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,911 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,912 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,912 DEBUG L331 ransitionTransformer]: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,912 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,912 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,912 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,913 DEBUG L331 ransitionTransformer]: Formula: (not (< v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_3 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~size_2)) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~size=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~size_2, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_3} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~size=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~size_2, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_3} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,913 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,913 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,913 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,913 DEBUG L331 ransitionTransformer]: Formula: (< v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_4 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~size_3) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~size=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~size_3, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_4} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~size=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~size_3, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_4} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,914 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,914 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,914 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,914 DEBUG L331 ransitionTransformer]: Formula: (= |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#res_1| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_11) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_11} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_11, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#res=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#res_1|} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#res] [2018-04-12 04:08:17,914 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,915 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,915 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,915 DEBUG L331 ransitionTransformer]: Formula: (or (not (< v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_5 32)) (not (<= 0 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_5))) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_5} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_5} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,915 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,915 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,916 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,916 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,916 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,916 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,916 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,917 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,917 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,917 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,920 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,921 DEBUG L331 ransitionTransformer]: Formula: (let ((.cse0 (+ v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset_2 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_6))) (and (= 1 (select |v_#valid_3| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_2)) (<= 0 .cse0) (= |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~mem1_1| (select (select |v_#memory_int_part_locs_30_locs_30_1| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_2) .cse0)) (<= (+ v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset_2 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_6 1) (select |v_#length_1| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_2)))) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_2, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset_2, #valid=|v_#valid_3|, #length=|v_#length_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_6, #memory_int_part_locs_30_locs_30=|v_#memory_int_part_locs_30_locs_30_1|} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~mem1=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~mem1_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_2, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset_2, #valid=|v_#valid_3|, #length=|v_#length_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_6, #memory_int_part_locs_30_locs_30=|v_#memory_int_part_locs_30_locs_30_1|} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~mem1] [2018-04-12 04:08:17,921 DEBUG L338 ransitionTransformer]: formula has changed [2018-04-12 04:08:17,921 DEBUG L339 ransitionTransformer]: old formula: [2018-04-12 04:08:17,921 DEBUG L340 ransitionTransformer]: (let ((.cse0 (+ v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset_2 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_6))) (and (= 1 (select |v_#valid_3| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_2)) (<= 0 .cse0) (= |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~mem1_1| (select (select |v_#memory_int_1| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_2) .cse0)) (<= (+ v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset_2 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_6 1) (select |v_#length_1| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_2)))) [2018-04-12 04:08:17,922 DEBUG L341 ransitionTransformer]: new formula: [2018-04-12 04:08:17,922 DEBUG L342 ransitionTransformer]: (let ((.cse0 (+ v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset_2 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_6))) (and (= 1 (select |v_#valid_3| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_2)) (<= 0 .cse0) (= |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~mem1_1| (select (select |v_#memory_int_part_locs_30_locs_30_1| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_2) .cse0)) (<= (+ v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset_2 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_6 1) (select |v_#length_1| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_2)))) [2018-04-12 04:08:17,922 DEBUG L346 ransitionTransformer]: invars have changed [2018-04-12 04:08:17,922 DEBUG L347 ransitionTransformer]: old invars: [2018-04-12 04:08:17,922 DEBUG L348 ransitionTransformer]: {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_2, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset_2, #valid=|v_#valid_3|, #memory_int=|v_#memory_int_1|, #length=|v_#length_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_6} [2018-04-12 04:08:17,923 DEBUG L349 ransitionTransformer]: new invars: [2018-04-12 04:08:17,923 DEBUG L350 ransitionTransformer]: {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_2, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset_2, #valid=|v_#valid_3|, #length=|v_#length_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_6, #memory_int_part_locs_30_locs_30=|v_#memory_int_part_locs_30_locs_30_1|} [2018-04-12 04:08:17,923 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-12 04:08:17,923 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-12 04:08:17,923 DEBUG L356 ransitionTransformer]: {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~mem1=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~mem1_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_2, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset_2, #valid=|v_#valid_3|, #memory_int=|v_#memory_int_1|, #length=|v_#length_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_6} [2018-04-12 04:08:17,924 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-12 04:08:17,924 DEBUG L358 ransitionTransformer]: {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~mem1=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~mem1_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_2, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset_2, #valid=|v_#valid_3|, #length=|v_#length_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_6, #memory_int_part_locs_30_locs_30=|v_#memory_int_part_locs_30_locs_30_1|} [2018-04-12 04:08:17,924 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,924 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,925 DEBUG L331 ransitionTransformer]: Formula: (not (= (select |v_#valid_4| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_3) 1)) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_3, #valid=|v_#valid_4|} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_3, #valid=|v_#valid_4|} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,925 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,925 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,925 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,925 DEBUG L331 ransitionTransformer]: Formula: (or (not (<= 0 (+ v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset_3 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_7))) (not (<= (+ v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset_3 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_7 1) (select |v_#length_2| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_4)))) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset_3, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_4, #length=|v_#length_2|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_7} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset_3, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_4, #length=|v_#length_2|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_7} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,926 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,926 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,926 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,926 DEBUG L331 ransitionTransformer]: Formula: (= v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~a~0_2 (store v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~a~0_3 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_8 |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~mem1_2|)) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~mem1=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~mem1_2|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~a~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~a~0_3, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_8} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~mem1=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~mem1_2|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~a~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~a~0_2, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_8} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~a~0] [2018-04-12 04:08:17,926 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,927 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,927 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,927 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,927 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-12 04:08:17,927 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-12 04:08:17,928 DEBUG L356 ransitionTransformer]: {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~mem1=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~mem1_3|} [2018-04-12 04:08:17,928 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-12 04:08:17,928 DEBUG L358 ransitionTransformer]: {} [2018-04-12 04:08:17,928 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,928 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,929 DEBUG L331 ransitionTransformer]: Formula: (= |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~post0_1| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_9) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_9} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~post0=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~post0_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_9} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~post0] [2018-04-12 04:08:17,929 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,929 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,929 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,930 DEBUG L331 ransitionTransformer]: Formula: (= v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_10 (+ |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~post0_2| 1)) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~post0=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~post0_2|} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~post0=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~post0_2|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_10} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0] [2018-04-12 04:08:17,930 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,930 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,930 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,930 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,931 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-12 04:08:17,931 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-12 04:08:17,931 DEBUG L356 ransitionTransformer]: {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~post0=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~post0_3|} [2018-04-12 04:08:17,931 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-12 04:08:17,931 DEBUG L358 ransitionTransformer]: {} [2018-04-12 04:08:17,931 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,932 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,932 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-12 04:08:17,932 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-12 04:08:17,932 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,933 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,933 DEBUG L331 ransitionTransformer]: Formula: (= |v_ULTIMATE.start_#t~ret5_2| |v_main_#resOutParam_1|) InVars {main_#res=|v_main_#resOutParam_1|} OutVars{ULTIMATE.start_#t~ret5=|v_ULTIMATE.start_#t~ret5_2|, main_#res=|v_main_#resOutParam_1|} AuxVars[] AssignedVars[ULTIMATE.start_#t~ret5] [2018-04-12 04:08:17,933 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-12 04:08:17,933 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-12 04:08:17,933 DEBUG L356 ransitionTransformer]: {ULTIMATE.start_#t~ret5=|v_ULTIMATE.start_#t~ret5_2|} [2018-04-12 04:08:17,933 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-12 04:08:17,934 DEBUG L358 ransitionTransformer]: {ULTIMATE.start_#t~ret5=|v_ULTIMATE.start_#t~ret5_2|, main_#res=|v_main_#resOutParam_1|} [2018-04-12 04:08:17,934 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,934 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-12 04:08:17,934 DEBUG L331 ransitionTransformer]: Formula: (= |v_main_#t~ret3_5| |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#resOutParam_1|) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#res=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#resOutParam_1|} OutVars{main_#t~ret3=|v_main_#t~ret3_5|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#res=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#resOutParam_1|} AuxVars[] AssignedVars[main_#t~ret3] [2018-04-12 04:08:17,935 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-12 04:08:17,935 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-12 04:08:17,935 DEBUG L356 ransitionTransformer]: {main_#t~ret3=|v_main_#t~ret3_5|} [2018-04-12 04:08:17,935 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-12 04:08:17,935 DEBUG L358 ransitionTransformer]: {main_#t~ret3=|v_main_#t~ret3_5|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#res=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#resOutParam_1|} [2018-04-12 04:08:17,935 DEBUG L360 ransitionTransformer]: [2018-04-12 04:08:17,936 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-12 04:08:17,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 12.04 04:08:17 BasicIcfg [2018-04-12 04:08:17,938 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-04-12 04:08:17,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-12 04:08:17,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-12 04:08:17,943 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-12 04:08:17,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.04 04:08:13" (1/4) ... [2018-04-12 04:08:17,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f2cedc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.04 04:08:17, skipping insertion in model container [2018-04-12 04:08:17,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 04:08:13" (2/4) ... [2018-04-12 04:08:17,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f2cedc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.04 04:08:17, skipping insertion in model container [2018-04-12 04:08:17,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.04 04:08:14" (3/4) ... [2018-04-12 04:08:17,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f2cedc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.04 04:08:17, skipping insertion in model container [2018-04-12 04:08:17,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 12.04 04:08:17" (4/4) ... [2018-04-12 04:08:17,947 INFO L107 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-04-12 04:08:17,958 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-12 04:08:17,965 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-04-12 04:08:17,998 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-12 04:08:17,999 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-12 04:08:17,999 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-12 04:08:17,999 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-12 04:08:17,999 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-12 04:08:17,999 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-12 04:08:17,999 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-12 04:08:18,000 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-12 04:08:18,000 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-12 04:08:18,000 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-12 04:08:18,011 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-04-12 04:08:18,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-04-12 04:08:18,018 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:18,020 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 04:08:18,020 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:18,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1261173293, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-12 04:08:18,041 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:18,080 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:18,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 04:08:18,138 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:18,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 04:08:18,175 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-12 04:08:18,175 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-12 04:08:18,177 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-12 04:08:18,185 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-12 04:08:18,185 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-12 04:08:18,187 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 4 states. [2018-04-12 04:08:18,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:18,325 INFO L93 Difference]: Finished difference Result 141 states and 163 transitions. [2018-04-12 04:08:18,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-12 04:08:18,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-04-12 04:08:18,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:18,337 INFO L225 Difference]: With dead ends: 141 [2018-04-12 04:08:18,337 INFO L226 Difference]: Without dead ends: 84 [2018-04-12 04:08:18,341 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-12 04:08:18,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-04-12 04:08:18,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 68. [2018-04-12 04:08:18,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-04-12 04:08:18,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2018-04-12 04:08:18,380 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 16 [2018-04-12 04:08:18,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:18,380 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2018-04-12 04:08:18,380 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-12 04:08:18,380 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2018-04-12 04:08:18,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-12 04:08:18,381 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:18,381 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, 1, 1] [2018-04-12 04:08:18,381 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:18,381 INFO L82 PathProgramCache]: Analyzing trace with hash -635853243, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-12 04:08:18,389 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:18,406 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:18,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 04:08:18,421 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:18,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 04:08:18,552 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-12 04:08:18,553 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2018-04-12 04:08:18,554 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-12 04:08:18,555 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-12 04:08:18,555 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-12 04:08:18,555 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand 4 states. [2018-04-12 04:08:18,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:18,624 INFO L93 Difference]: Finished difference Result 82 states and 86 transitions. [2018-04-12 04:08:18,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-12 04:08:18,624 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-04-12 04:08:18,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:18,627 INFO L225 Difference]: With dead ends: 82 [2018-04-12 04:08:18,627 INFO L226 Difference]: Without dead ends: 81 [2018-04-12 04:08:18,635 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-12 04:08:18,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-04-12 04:08:18,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 71. [2018-04-12 04:08:18,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-04-12 04:08:18,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2018-04-12 04:08:18,643 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 25 [2018-04-12 04:08:18,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:18,644 INFO L459 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2018-04-12 04:08:18,644 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-12 04:08:18,644 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2018-04-12 04:08:18,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-12 04:08:18,645 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:18,645 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, 1, 1, 1] [2018-04-12 04:08:18,645 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:18,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1763386179, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-12 04:08:18,651 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:18,663 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:18,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 04:08:18,709 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:18,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 04:08:18,783 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-12 04:08:18,784 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2018-04-12 04:08:18,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-12 04:08:18,784 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-12 04:08:18,784 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-04-12 04:08:18,785 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand 7 states. [2018-04-12 04:08:18,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:18,879 INFO L93 Difference]: Finished difference Result 150 states and 160 transitions. [2018-04-12 04:08:18,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-12 04:08:18,880 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-04-12 04:08:18,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:18,881 INFO L225 Difference]: With dead ends: 150 [2018-04-12 04:08:18,881 INFO L226 Difference]: Without dead ends: 95 [2018-04-12 04:08:18,881 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-04-12 04:08:18,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-04-12 04:08:18,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 82. [2018-04-12 04:08:18,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-04-12 04:08:18,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 86 transitions. [2018-04-12 04:08:18,887 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 86 transitions. Word has length 26 [2018-04-12 04:08:18,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:18,887 INFO L459 AbstractCegarLoop]: Abstraction has 82 states and 86 transitions. [2018-04-12 04:08:18,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-12 04:08:18,887 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 86 transitions. [2018-04-12 04:08:18,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-12 04:08:18,888 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:18,888 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] [2018-04-12 04:08:18,888 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:18,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1746619775, 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 [2018-04-12 04:08:18,894 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:18,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:18,912 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:18,942 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 04:08:18,942 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:18,984 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 04:08:19,017 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-12 04:08:19,017 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-04-12 04:08:19,018 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-12 04:08:19,018 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-12 04:08:19,018 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-04-12 04:08:19,018 INFO L87 Difference]: Start difference. First operand 82 states and 86 transitions. Second operand 9 states. [2018-04-12 04:08:19,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:19,102 INFO L93 Difference]: Finished difference Result 97 states and 100 transitions. [2018-04-12 04:08:19,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-12 04:08:19,103 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2018-04-12 04:08:19,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:19,104 INFO L225 Difference]: With dead ends: 97 [2018-04-12 04:08:19,104 INFO L226 Difference]: Without dead ends: 96 [2018-04-12 04:08:19,104 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2018-04-12 04:08:19,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-04-12 04:08:19,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 81. [2018-04-12 04:08:19,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-04-12 04:08:19,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 85 transitions. [2018-04-12 04:08:19,110 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 85 transitions. Word has length 37 [2018-04-12 04:08:19,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:19,110 INFO L459 AbstractCegarLoop]: Abstraction has 81 states and 85 transitions. [2018-04-12 04:08:19,110 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-12 04:08:19,110 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 85 transitions. [2018-04-12 04:08:19,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-04-12 04:08:19,111 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:19,111 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-12 04:08:19,111 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:19,111 INFO L82 PathProgramCache]: Analyzing trace with hash 485332264, 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 [2018-04-12 04:08:19,117 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:19,134 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:19,173 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 04:08:19,173 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:19,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 04:08:19,237 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:19,237 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-04-12 04:08:19,237 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-12 04:08:19,237 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-12 04:08:19,237 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-04-12 04:08:19,237 INFO L87 Difference]: Start difference. First operand 81 states and 85 transitions. Second operand 8 states. [2018-04-12 04:08:19,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:19,337 INFO L93 Difference]: Finished difference Result 137 states and 145 transitions. [2018-04-12 04:08:19,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-12 04:08:19,337 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 44 [2018-04-12 04:08:19,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:19,338 INFO L225 Difference]: With dead ends: 137 [2018-04-12 04:08:19,339 INFO L226 Difference]: Without dead ends: 117 [2018-04-12 04:08:19,339 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2018-04-12 04:08:19,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-04-12 04:08:19,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 100. [2018-04-12 04:08:19,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-04-12 04:08:19,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 105 transitions. [2018-04-12 04:08:19,350 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 105 transitions. Word has length 44 [2018-04-12 04:08:19,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:19,350 INFO L459 AbstractCegarLoop]: Abstraction has 100 states and 105 transitions. [2018-04-12 04:08:19,350 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-12 04:08:19,350 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 105 transitions. [2018-04-12 04:08:19,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-12 04:08:19,353 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:19,353 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2018-04-12 04:08:19,353 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:19,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1800962711, 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 [2018-04-12 04:08:19,361 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:19,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:19,376 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:19,393 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 [2018-04-12 04:08:19,394 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 04:08:19,398 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 04:08:19,398 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-12 04:08:19,457 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-12 04:08:19,457 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:19,485 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-12 04:08:19,508 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:19,508 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 6 [2018-04-12 04:08:19,508 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-12 04:08:19,508 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-12 04:08:19,509 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-12 04:08:19,509 INFO L87 Difference]: Start difference. First operand 100 states and 105 transitions. Second operand 7 states. [2018-04-12 04:08:19,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:19,578 INFO L93 Difference]: Finished difference Result 100 states and 105 transitions. [2018-04-12 04:08:19,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-12 04:08:19,579 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2018-04-12 04:08:19,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:19,580 INFO L225 Difference]: With dead ends: 100 [2018-04-12 04:08:19,580 INFO L226 Difference]: Without dead ends: 99 [2018-04-12 04:08:19,580 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-04-12 04:08:19,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-04-12 04:08:19,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2018-04-12 04:08:19,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-04-12 04:08:19,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 104 transitions. [2018-04-12 04:08:19,589 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 104 transitions. Word has length 47 [2018-04-12 04:08:19,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:19,590 INFO L459 AbstractCegarLoop]: Abstraction has 99 states and 104 transitions. [2018-04-12 04:08:19,590 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-12 04:08:19,590 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 104 transitions. [2018-04-12 04:08:19,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-12 04:08:19,591 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:19,591 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2018-04-12 04:08:19,592 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:19,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1800962712, 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 [2018-04-12 04:08:19,604 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:19,625 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:19,634 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 [2018-04-12 04:08:19,635 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 04:08:19,641 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 04:08:19,641 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-12 04:08:19,696 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-12 04:08:19,696 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:19,769 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-12 04:08:19,790 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:19,791 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2018-04-12 04:08:19,791 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-12 04:08:19,791 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-12 04:08:19,791 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-04-12 04:08:19,792 INFO L87 Difference]: Start difference. First operand 99 states and 104 transitions. Second operand 13 states. [2018-04-12 04:08:19,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:19,913 INFO L93 Difference]: Finished difference Result 108 states and 114 transitions. [2018-04-12 04:08:19,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-12 04:08:19,913 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 47 [2018-04-12 04:08:19,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:19,914 INFO L225 Difference]: With dead ends: 108 [2018-04-12 04:08:19,914 INFO L226 Difference]: Without dead ends: 107 [2018-04-12 04:08:19,915 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2018-04-12 04:08:19,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-04-12 04:08:19,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 100. [2018-04-12 04:08:19,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-04-12 04:08:19,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 105 transitions. [2018-04-12 04:08:19,926 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 105 transitions. Word has length 47 [2018-04-12 04:08:19,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:19,927 INFO L459 AbstractCegarLoop]: Abstraction has 100 states and 105 transitions. [2018-04-12 04:08:19,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-12 04:08:19,927 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 105 transitions. [2018-04-12 04:08:19,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-04-12 04:08:19,928 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:19,928 INFO L355 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 04:08:19,928 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:19,929 INFO L82 PathProgramCache]: Analyzing trace with hash 610188363, 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 [2018-04-12 04:08:19,939 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:19,964 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:20,032 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 04:08:20,032 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:20,071 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 04:08:20,092 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:20,092 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 13 [2018-04-12 04:08:20,093 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-12 04:08:20,093 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-12 04:08:20,093 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-04-12 04:08:20,093 INFO L87 Difference]: Start difference. First operand 100 states and 105 transitions. Second operand 13 states. [2018-04-12 04:08:20,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:20,281 INFO L93 Difference]: Finished difference Result 192 states and 203 transitions. [2018-04-12 04:08:20,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-12 04:08:20,281 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2018-04-12 04:08:20,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:20,283 INFO L225 Difference]: With dead ends: 192 [2018-04-12 04:08:20,283 INFO L226 Difference]: Without dead ends: 130 [2018-04-12 04:08:20,284 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 95 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2018-04-12 04:08:20,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-04-12 04:08:20,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 119. [2018-04-12 04:08:20,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-04-12 04:08:20,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 124 transitions. [2018-04-12 04:08:20,293 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 124 transitions. Word has length 55 [2018-04-12 04:08:20,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:20,293 INFO L459 AbstractCegarLoop]: Abstraction has 119 states and 124 transitions. [2018-04-12 04:08:20,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-12 04:08:20,293 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 124 transitions. [2018-04-12 04:08:20,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-04-12 04:08:20,295 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:20,295 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-04-12 04:08:20,295 INFO L408 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:20,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1818620553, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-12 04:08:20,305 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:20,330 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:20,363 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-04-12 04:08:20,363 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:20,419 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-04-12 04:08:20,440 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-12 04:08:20,440 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 10 [2018-04-12 04:08:20,440 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-12 04:08:20,441 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-12 04:08:20,441 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-04-12 04:08:20,441 INFO L87 Difference]: Start difference. First operand 119 states and 124 transitions. Second operand 10 states. [2018-04-12 04:08:20,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:20,581 INFO L93 Difference]: Finished difference Result 201 states and 209 transitions. [2018-04-12 04:08:20,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-12 04:08:20,582 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 76 [2018-04-12 04:08:20,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:20,583 INFO L225 Difference]: With dead ends: 201 [2018-04-12 04:08:20,583 INFO L226 Difference]: Without dead ends: 133 [2018-04-12 04:08:20,583 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 138 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2018-04-12 04:08:20,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-04-12 04:08:20,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 119. [2018-04-12 04:08:20,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-04-12 04:08:20,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 122 transitions. [2018-04-12 04:08:20,591 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 122 transitions. Word has length 76 [2018-04-12 04:08:20,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:20,591 INFO L459 AbstractCegarLoop]: Abstraction has 119 states and 122 transitions. [2018-04-12 04:08:20,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-12 04:08:20,591 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 122 transitions. [2018-04-12 04:08:20,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-04-12 04:08:20,593 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:20,593 INFO L355 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2018-04-12 04:08:20,593 INFO L408 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:20,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1720583121, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-12 04:08:20,603 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:20,628 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:20,649 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-04-12 04:08:20,650 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:20,678 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-04-12 04:08:20,709 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:20,709 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-04-12 04:08:20,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-12 04:08:20,710 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-12 04:08:20,710 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-04-12 04:08:20,710 INFO L87 Difference]: Start difference. First operand 119 states and 122 transitions. Second operand 8 states. [2018-04-12 04:08:20,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:20,780 INFO L93 Difference]: Finished difference Result 150 states and 156 transitions. [2018-04-12 04:08:20,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-12 04:08:20,781 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 85 [2018-04-12 04:08:20,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:20,782 INFO L225 Difference]: With dead ends: 150 [2018-04-12 04:08:20,782 INFO L226 Difference]: Without dead ends: 149 [2018-04-12 04:08:20,783 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-04-12 04:08:20,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-04-12 04:08:20,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 136. [2018-04-12 04:08:20,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-04-12 04:08:20,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 142 transitions. [2018-04-12 04:08:20,790 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 142 transitions. Word has length 85 [2018-04-12 04:08:20,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:20,791 INFO L459 AbstractCegarLoop]: Abstraction has 136 states and 142 transitions. [2018-04-12 04:08:20,791 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-12 04:08:20,791 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 142 transitions. [2018-04-12 04:08:20,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-04-12 04:08:20,792 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:20,792 INFO L355 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-04-12 04:08:20,792 INFO L408 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:20,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1798469432, now seen corresponding path program 1 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 [2018-04-12 04:08:20,800 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:20,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:20,828 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:20,832 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 [2018-04-12 04:08:20,832 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 04:08:20,836 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 04:08:20,836 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-12 04:08:20,959 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 31 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-04-12 04:08:20,959 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:21,103 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 31 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-04-12 04:08:21,124 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:21,124 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2018-04-12 04:08:21,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-12 04:08:21,125 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-12 04:08:21,125 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2018-04-12 04:08:21,125 INFO L87 Difference]: Start difference. First operand 136 states and 142 transitions. Second operand 17 states. [2018-04-12 04:08:21,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:21,339 INFO L93 Difference]: Finished difference Result 147 states and 153 transitions. [2018-04-12 04:08:21,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-12 04:08:21,340 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 86 [2018-04-12 04:08:21,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:21,341 INFO L225 Difference]: With dead ends: 147 [2018-04-12 04:08:21,341 INFO L226 Difference]: Without dead ends: 146 [2018-04-12 04:08:21,341 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 154 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=145, Invalid=455, Unknown=0, NotChecked=0, Total=600 [2018-04-12 04:08:21,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-04-12 04:08:21,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 137. [2018-04-12 04:08:21,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-04-12 04:08:21,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 142 transitions. [2018-04-12 04:08:21,351 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 142 transitions. Word has length 86 [2018-04-12 04:08:21,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:21,351 INFO L459 AbstractCegarLoop]: Abstraction has 137 states and 142 transitions. [2018-04-12 04:08:21,351 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-12 04:08:21,351 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 142 transitions. [2018-04-12 04:08:21,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-04-12 04:08:21,352 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:21,353 INFO L355 BasicCegarLoop]: trace histogram [7, 5, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1] [2018-04-12 04:08:21,353 INFO L408 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:21,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1807605487, now seen corresponding path program 4 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 [2018-04-12 04:08:21,363 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:21,398 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:21,475 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 91 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-04-12 04:08:21,476 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:21,545 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 91 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-04-12 04:08:21,564 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:21,564 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 19 [2018-04-12 04:08:21,565 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-12 04:08:21,565 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-12 04:08:21,565 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2018-04-12 04:08:21,565 INFO L87 Difference]: Start difference. First operand 137 states and 142 transitions. Second operand 19 states. [2018-04-12 04:08:21,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:21,812 INFO L93 Difference]: Finished difference Result 256 states and 269 transitions. [2018-04-12 04:08:21,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-12 04:08:21,812 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 103 [2018-04-12 04:08:21,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:21,814 INFO L225 Difference]: With dead ends: 256 [2018-04-12 04:08:21,814 INFO L226 Difference]: Without dead ends: 184 [2018-04-12 04:08:21,815 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 181 SyntacticMatches, 7 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=186, Invalid=744, Unknown=0, NotChecked=0, Total=930 [2018-04-12 04:08:21,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-04-12 04:08:21,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 168. [2018-04-12 04:08:21,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-04-12 04:08:21,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 174 transitions. [2018-04-12 04:08:21,822 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 174 transitions. Word has length 103 [2018-04-12 04:08:21,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:21,823 INFO L459 AbstractCegarLoop]: Abstraction has 168 states and 174 transitions. [2018-04-12 04:08:21,823 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-12 04:08:21,823 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 174 transitions. [2018-04-12 04:08:21,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-04-12 04:08:21,824 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:21,824 INFO L355 BasicCegarLoop]: trace histogram [5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1] [2018-04-12 04:08:21,824 INFO L408 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:21,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1420078052, now seen corresponding path program 1 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 [2018-04-12 04:08:21,832 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:21,867 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:21,960 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 70 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-04-12 04:08:21,961 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:22,081 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 70 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-04-12 04:08:22,102 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:22,102 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 16 [2018-04-12 04:08:22,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-12 04:08:22,103 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-12 04:08:22,103 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2018-04-12 04:08:22,103 INFO L87 Difference]: Start difference. First operand 168 states and 174 transitions. Second operand 16 states. [2018-04-12 04:08:22,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:22,346 INFO L93 Difference]: Finished difference Result 256 states and 266 transitions. [2018-04-12 04:08:22,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-12 04:08:22,346 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 104 [2018-04-12 04:08:22,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:22,347 INFO L225 Difference]: With dead ends: 256 [2018-04-12 04:08:22,347 INFO L226 Difference]: Without dead ends: 178 [2018-04-12 04:08:22,348 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 187 SyntacticMatches, 7 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=513, Unknown=0, NotChecked=0, Total=650 [2018-04-12 04:08:22,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-04-12 04:08:22,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 168. [2018-04-12 04:08:22,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-04-12 04:08:22,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 172 transitions. [2018-04-12 04:08:22,360 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 172 transitions. Word has length 104 [2018-04-12 04:08:22,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:22,360 INFO L459 AbstractCegarLoop]: Abstraction has 168 states and 172 transitions. [2018-04-12 04:08:22,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-12 04:08:22,360 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 172 transitions. [2018-04-12 04:08:22,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-04-12 04:08:22,362 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:22,362 INFO L355 BasicCegarLoop]: trace histogram [6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-04-12 04:08:22,362 INFO L408 AbstractCegarLoop]: === Iteration 14 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:22,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1324477634, now seen corresponding path program 2 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 [2018-04-12 04:08:22,371 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:22,404 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:22,484 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-04-12 04:08:22,484 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:22,605 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-04-12 04:08:22,626 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:22,626 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2018-04-12 04:08:22,627 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-12 04:08:22,627 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-12 04:08:22,627 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2018-04-12 04:08:22,627 INFO L87 Difference]: Start difference. First operand 168 states and 172 transitions. Second operand 16 states. [2018-04-12 04:08:22,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:22,825 INFO L93 Difference]: Finished difference Result 246 states and 258 transitions. [2018-04-12 04:08:22,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-12 04:08:22,825 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 113 [2018-04-12 04:08:22,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:22,826 INFO L225 Difference]: With dead ends: 246 [2018-04-12 04:08:22,826 INFO L226 Difference]: Without dead ends: 226 [2018-04-12 04:08:22,827 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=259, Invalid=497, Unknown=0, NotChecked=0, Total=756 [2018-04-12 04:08:22,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2018-04-12 04:08:22,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 209. [2018-04-12 04:08:22,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2018-04-12 04:08:22,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 216 transitions. [2018-04-12 04:08:22,836 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 216 transitions. Word has length 113 [2018-04-12 04:08:22,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:22,836 INFO L459 AbstractCegarLoop]: Abstraction has 209 states and 216 transitions. [2018-04-12 04:08:22,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-12 04:08:22,836 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 216 transitions. [2018-04-12 04:08:22,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-04-12 04:08:22,837 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:22,837 INFO L355 BasicCegarLoop]: trace histogram [10, 7, 6, 6, 6, 6, 6, 6, 6, 4, 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, 1, 1] [2018-04-12 04:08:22,838 INFO L408 AbstractCegarLoop]: === Iteration 15 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:22,838 INFO L82 PathProgramCache]: Analyzing trace with hash -902449743, now seen corresponding path program 5 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 [2018-04-12 04:08:22,846 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:22,874 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:22,988 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 165 proven. 48 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-04-12 04:08:22,988 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:23,124 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 165 proven. 48 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-04-12 04:08:23,153 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:23,153 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 25 [2018-04-12 04:08:23,154 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-12 04:08:23,154 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-12 04:08:23,154 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600 [2018-04-12 04:08:23,154 INFO L87 Difference]: Start difference. First operand 209 states and 216 transitions. Second operand 25 states. [2018-04-12 04:08:23,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:23,611 INFO L93 Difference]: Finished difference Result 359 states and 374 transitions. [2018-04-12 04:08:23,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-12 04:08:23,612 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 142 [2018-04-12 04:08:23,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:23,614 INFO L225 Difference]: With dead ends: 359 [2018-04-12 04:08:23,614 INFO L226 Difference]: Without dead ends: 257 [2018-04-12 04:08:23,615 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 251 SyntacticMatches, 9 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1401, Unknown=0, NotChecked=0, Total=1722 [2018-04-12 04:08:23,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2018-04-12 04:08:23,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 246. [2018-04-12 04:08:23,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2018-04-12 04:08:23,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 253 transitions. [2018-04-12 04:08:23,626 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 253 transitions. Word has length 142 [2018-04-12 04:08:23,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:23,626 INFO L459 AbstractCegarLoop]: Abstraction has 246 states and 253 transitions. [2018-04-12 04:08:23,626 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-12 04:08:23,626 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 253 transitions. [2018-04-12 04:08:23,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-04-12 04:08:23,628 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:23,628 INFO L355 BasicCegarLoop]: trace histogram [13, 9, 8, 8, 8, 8, 8, 8, 8, 5, 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, 1, 1] [2018-04-12 04:08:23,628 INFO L408 AbstractCegarLoop]: === Iteration 16 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:23,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1524247825, now seen corresponding path program 6 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 [2018-04-12 04:08:23,635 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:23,689 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:23,862 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 384 proven. 13 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-04-12 04:08:23,862 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:24,045 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 384 proven. 13 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-04-12 04:08:24,075 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:24,075 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 22 [2018-04-12 04:08:24,076 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-12 04:08:24,076 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-12 04:08:24,076 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2018-04-12 04:08:24,077 INFO L87 Difference]: Start difference. First operand 246 states and 253 transitions. Second operand 22 states. [2018-04-12 04:08:24,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:24,411 INFO L93 Difference]: Finished difference Result 368 states and 382 transitions. [2018-04-12 04:08:24,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-12 04:08:24,411 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 181 [2018-04-12 04:08:24,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:24,413 INFO L225 Difference]: With dead ends: 368 [2018-04-12 04:08:24,413 INFO L226 Difference]: Without dead ends: 260 [2018-04-12 04:08:24,414 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 333 SyntacticMatches, 9 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=256, Invalid=1076, Unknown=0, NotChecked=0, Total=1332 [2018-04-12 04:08:24,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2018-04-12 04:08:24,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 246. [2018-04-12 04:08:24,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2018-04-12 04:08:24,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 251 transitions. [2018-04-12 04:08:24,424 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 251 transitions. Word has length 181 [2018-04-12 04:08:24,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:24,424 INFO L459 AbstractCegarLoop]: Abstraction has 246 states and 251 transitions. [2018-04-12 04:08:24,424 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-12 04:08:24,424 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 251 transitions. [2018-04-12 04:08:24,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-04-12 04:08:24,425 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:24,425 INFO L355 BasicCegarLoop]: trace histogram [14, 10, 9, 9, 9, 9, 9, 9, 9, 5, 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, 1, 1] [2018-04-12 04:08:24,425 INFO L408 AbstractCegarLoop]: === Iteration 17 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:24,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1648986505, now seen corresponding path program 7 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 [2018-04-12 04:08:24,435 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:24,477 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:24,532 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 212 proven. 36 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2018-04-12 04:08:24,532 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:24,619 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 212 proven. 36 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2018-04-12 04:08:24,651 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:24,652 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2018-04-12 04:08:24,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-12 04:08:24,652 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-12 04:08:24,653 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-04-12 04:08:24,653 INFO L87 Difference]: Start difference. First operand 246 states and 251 transitions. Second operand 16 states. [2018-04-12 04:08:24,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:24,922 INFO L93 Difference]: Finished difference Result 303 states and 323 transitions. [2018-04-12 04:08:24,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-12 04:08:24,922 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 190 [2018-04-12 04:08:24,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:24,925 INFO L225 Difference]: With dead ends: 303 [2018-04-12 04:08:24,925 INFO L226 Difference]: Without dead ends: 302 [2018-04-12 04:08:24,926 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=206, Invalid=550, Unknown=0, NotChecked=0, Total=756 [2018-04-12 04:08:24,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2018-04-12 04:08:24,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 281. [2018-04-12 04:08:24,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2018-04-12 04:08:24,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 293 transitions. [2018-04-12 04:08:24,943 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 293 transitions. Word has length 190 [2018-04-12 04:08:24,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:24,944 INFO L459 AbstractCegarLoop]: Abstraction has 281 states and 293 transitions. [2018-04-12 04:08:24,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-12 04:08:24,944 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 293 transitions. [2018-04-12 04:08:24,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-04-12 04:08:24,945 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:24,946 INFO L355 BasicCegarLoop]: trace histogram [14, 10, 10, 9, 9, 9, 9, 9, 9, 5, 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, 1, 1] [2018-04-12 04:08:24,946 INFO L408 AbstractCegarLoop]: === Iteration 18 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:24,946 INFO L82 PathProgramCache]: Analyzing trace with hash 421026130, 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 [2018-04-12 04:08:24,955 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:25,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:25,004 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:25,007 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 [2018-04-12 04:08:25,007 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 04:08:25,010 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 04:08:25,010 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-12 04:08:25,238 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 238 proven. 47 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2018-04-12 04:08:25,239 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:25,430 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 238 proven. 47 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2018-04-12 04:08:25,450 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:25,451 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2018-04-12 04:08:25,451 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-12 04:08:25,451 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-12 04:08:25,451 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2018-04-12 04:08:25,451 INFO L87 Difference]: Start difference. First operand 281 states and 293 transitions. Second operand 25 states. [2018-04-12 04:08:26,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:26,055 INFO L93 Difference]: Finished difference Result 298 states and 318 transitions. [2018-04-12 04:08:26,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-12 04:08:26,055 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 191 [2018-04-12 04:08:26,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:26,056 INFO L225 Difference]: With dead ends: 298 [2018-04-12 04:08:26,057 INFO L226 Difference]: Without dead ends: 297 [2018-04-12 04:08:26,057 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 352 SyntacticMatches, 7 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=375, Invalid=1265, Unknown=0, NotChecked=0, Total=1640 [2018-04-12 04:08:26,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2018-04-12 04:08:26,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 282. [2018-04-12 04:08:26,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2018-04-12 04:08:26,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 291 transitions. [2018-04-12 04:08:26,073 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 291 transitions. Word has length 191 [2018-04-12 04:08:26,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:26,073 INFO L459 AbstractCegarLoop]: Abstraction has 282 states and 291 transitions. [2018-04-12 04:08:26,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-12 04:08:26,074 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 291 transitions. [2018-04-12 04:08:26,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-04-12 04:08:26,075 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:26,076 INFO L355 BasicCegarLoop]: trace histogram [18, 14, 13, 13, 13, 13, 13, 13, 13, 5, 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, 1, 1] [2018-04-12 04:08:26,076 INFO L408 AbstractCegarLoop]: === Iteration 19 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:26,076 INFO L82 PathProgramCache]: Analyzing trace with hash 852231671, now seen corresponding path program 8 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 [2018-04-12 04:08:26,083 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:26,133 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:26,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 660 proven. 86 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2018-04-12 04:08:26,528 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:26,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 660 proven. 86 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2018-04-12 04:08:26,722 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:26,722 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 31 [2018-04-12 04:08:26,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-04-12 04:08:26,723 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-04-12 04:08:26,724 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=789, Unknown=0, NotChecked=0, Total=930 [2018-04-12 04:08:26,724 INFO L87 Difference]: Start difference. First operand 282 states and 291 transitions. Second operand 31 states. [2018-04-12 04:08:27,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:27,199 INFO L93 Difference]: Finished difference Result 466 states and 485 transitions. [2018-04-12 04:08:27,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-12 04:08:27,200 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 226 [2018-04-12 04:08:27,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:27,203 INFO L225 Difference]: With dead ends: 466 [2018-04-12 04:08:27,203 INFO L226 Difference]: Without dead ends: 339 [2018-04-12 04:08:27,205 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 411 SyntacticMatches, 11 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=492, Invalid=2264, Unknown=0, NotChecked=0, Total=2756 [2018-04-12 04:08:27,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2018-04-12 04:08:27,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 328. [2018-04-12 04:08:27,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2018-04-12 04:08:27,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 337 transitions. [2018-04-12 04:08:27,223 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 337 transitions. Word has length 226 [2018-04-12 04:08:27,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:27,224 INFO L459 AbstractCegarLoop]: Abstraction has 328 states and 337 transitions. [2018-04-12 04:08:27,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-04-12 04:08:27,224 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 337 transitions. [2018-04-12 04:08:27,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2018-04-12 04:08:27,226 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:27,226 INFO L355 BasicCegarLoop]: trace histogram [22, 17, 16, 16, 16, 16, 16, 16, 16, 6, 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, 1, 1] [2018-04-12 04:08:27,226 INFO L408 AbstractCegarLoop]: === Iteration 20 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:27,226 INFO L82 PathProgramCache]: Analyzing trace with hash -649496643, now seen corresponding path program 9 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 [2018-04-12 04:08:27,235 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:27,289 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:27,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1558 backedges. 1064 proven. 33 refuted. 0 times theorem prover too weak. 461 trivial. 0 not checked. [2018-04-12 04:08:27,461 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:27,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1558 backedges. 1064 proven. 33 refuted. 0 times theorem prover too weak. 461 trivial. 0 not checked. [2018-04-12 04:08:27,756 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:27,756 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 28 [2018-04-12 04:08:27,757 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-12 04:08:27,757 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-12 04:08:27,757 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=630, Unknown=0, NotChecked=0, Total=756 [2018-04-12 04:08:27,757 INFO L87 Difference]: Start difference. First operand 328 states and 337 transitions. Second operand 28 states. [2018-04-12 04:08:28,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:28,542 INFO L93 Difference]: Finished difference Result 471 states and 488 transitions. [2018-04-12 04:08:28,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-12 04:08:28,542 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 274 [2018-04-12 04:08:28,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:28,544 INFO L225 Difference]: With dead ends: 471 [2018-04-12 04:08:28,544 INFO L226 Difference]: Without dead ends: 338 [2018-04-12 04:08:28,546 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 511 SyntacticMatches, 11 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=412, Invalid=1844, Unknown=0, NotChecked=0, Total=2256 [2018-04-12 04:08:28,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2018-04-12 04:08:28,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 328. [2018-04-12 04:08:28,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2018-04-12 04:08:28,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 335 transitions. [2018-04-12 04:08:28,562 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 335 transitions. Word has length 274 [2018-04-12 04:08:28,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:28,562 INFO L459 AbstractCegarLoop]: Abstraction has 328 states and 335 transitions. [2018-04-12 04:08:28,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-12 04:08:28,563 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 335 transitions. [2018-04-12 04:08:28,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2018-04-12 04:08:28,564 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:28,565 INFO L355 BasicCegarLoop]: trace histogram [23, 18, 17, 17, 17, 17, 17, 17, 17, 6, 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, 1, 1] [2018-04-12 04:08:28,565 INFO L408 AbstractCegarLoop]: === Iteration 21 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:28,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1806436533, now seen corresponding path program 10 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 [2018-04-12 04:08:28,571 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:28,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:28,634 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:28,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1715 backedges. 964 proven. 135 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2018-04-12 04:08:28,922 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:29,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1715 backedges. 964 proven. 135 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2018-04-12 04:08:29,182 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:29,182 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 37 [2018-04-12 04:08:29,183 INFO L442 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-04-12 04:08:29,183 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-04-12 04:08:29,183 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=1139, Unknown=0, NotChecked=0, Total=1332 [2018-04-12 04:08:29,183 INFO L87 Difference]: Start difference. First operand 328 states and 335 transitions. Second operand 37 states. [2018-04-12 04:08:29,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:29,770 INFO L93 Difference]: Finished difference Result 510 states and 525 transitions. [2018-04-12 04:08:29,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-12 04:08:29,770 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 283 [2018-04-12 04:08:29,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:29,772 INFO L225 Difference]: With dead ends: 510 [2018-04-12 04:08:29,772 INFO L226 Difference]: Without dead ends: 394 [2018-04-12 04:08:29,773 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 517 SyntacticMatches, 13 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 946 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=699, Invalid=3333, Unknown=0, NotChecked=0, Total=4032 [2018-04-12 04:08:29,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2018-04-12 04:08:29,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 383. [2018-04-12 04:08:29,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2018-04-12 04:08:29,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 390 transitions. [2018-04-12 04:08:29,788 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 390 transitions. Word has length 283 [2018-04-12 04:08:29,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:29,789 INFO L459 AbstractCegarLoop]: Abstraction has 383 states and 390 transitions. [2018-04-12 04:08:29,789 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-04-12 04:08:29,789 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 390 transitions. [2018-04-12 04:08:29,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2018-04-12 04:08:29,791 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:29,792 INFO L355 BasicCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 18, 18, 8, 7, 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, 1, 1] [2018-04-12 04:08:29,792 INFO L408 AbstractCegarLoop]: === Iteration 22 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:29,792 INFO L82 PathProgramCache]: Analyzing trace with hash -2022129432, now seen corresponding path program 3 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 [2018-04-12 04:08:29,801 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:29,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:29,861 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:30,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 1337 proven. 62 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2018-04-12 04:08:30,104 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:30,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 697 proven. 230 refuted. 0 times theorem prover too weak. 1157 trivial. 0 not checked. [2018-04-12 04:08:30,513 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:30,513 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 34 [2018-04-12 04:08:30,513 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-12 04:08:30,513 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-12 04:08:30,514 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=946, Unknown=0, NotChecked=0, Total=1122 [2018-04-12 04:08:30,514 INFO L87 Difference]: Start difference. First operand 383 states and 390 transitions. Second operand 34 states. [2018-04-12 04:08:31,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:31,094 INFO L93 Difference]: Finished difference Result 515 states and 527 transitions. [2018-04-12 04:08:31,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-12 04:08:31,094 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 332 [2018-04-12 04:08:31,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:31,096 INFO L225 Difference]: With dead ends: 515 [2018-04-12 04:08:31,096 INFO L226 Difference]: Without dead ends: 393 [2018-04-12 04:08:31,097 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 689 GetRequests, 619 SyntacticMatches, 13 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1157 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=605, Invalid=2817, Unknown=0, NotChecked=0, Total=3422 [2018-04-12 04:08:31,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2018-04-12 04:08:31,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 383. [2018-04-12 04:08:31,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2018-04-12 04:08:31,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 388 transitions. [2018-04-12 04:08:31,107 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 388 transitions. Word has length 332 [2018-04-12 04:08:31,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:31,108 INFO L459 AbstractCegarLoop]: Abstraction has 383 states and 388 transitions. [2018-04-12 04:08:31,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-04-12 04:08:31,108 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 388 transitions. [2018-04-12 04:08:31,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2018-04-12 04:08:31,110 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:31,110 INFO L355 BasicCegarLoop]: trace histogram [29, 23, 22, 22, 22, 22, 22, 22, 22, 7, 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, 1, 1] [2018-04-12 04:08:31,110 INFO L408 AbstractCegarLoop]: === Iteration 23 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:31,111 INFO L82 PathProgramCache]: Analyzing trace with hash 959013841, now seen corresponding path program 11 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 [2018-04-12 04:08:31,117 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:31,180 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:32,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2796 backedges. 1325 proven. 195 refuted. 0 times theorem prover too weak. 1276 trivial. 0 not checked. [2018-04-12 04:08:32,344 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:32,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2796 backedges. 1325 proven. 195 refuted. 0 times theorem prover too weak. 1276 trivial. 0 not checked. [2018-04-12 04:08:32,659 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:32,660 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 43 [2018-04-12 04:08:32,660 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-04-12 04:08:32,660 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-04-12 04:08:32,661 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=1553, Unknown=0, NotChecked=0, Total=1806 [2018-04-12 04:08:32,661 INFO L87 Difference]: Start difference. First operand 383 states and 388 transitions. Second operand 43 states. [2018-04-12 04:08:33,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:33,452 INFO L93 Difference]: Finished difference Result 574 states and 587 transitions. [2018-04-12 04:08:33,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-04-12 04:08:33,453 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 349 [2018-04-12 04:08:33,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:33,454 INFO L225 Difference]: With dead ends: 574 [2018-04-12 04:08:33,454 INFO L226 Difference]: Without dead ends: 466 [2018-04-12 04:08:33,456 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 729 GetRequests, 641 SyntacticMatches, 15 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1346 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=942, Invalid=4608, Unknown=0, NotChecked=0, Total=5550 [2018-04-12 04:08:33,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2018-04-12 04:08:33,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 450. [2018-04-12 04:08:33,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2018-04-12 04:08:33,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 456 transitions. [2018-04-12 04:08:33,470 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 456 transitions. Word has length 349 [2018-04-12 04:08:33,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:33,470 INFO L459 AbstractCegarLoop]: Abstraction has 450 states and 456 transitions. [2018-04-12 04:08:33,471 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-04-12 04:08:33,471 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 456 transitions. [2018-04-12 04:08:33,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2018-04-12 04:08:33,473 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:33,473 INFO L355 BasicCegarLoop]: trace histogram [27, 20, 20, 20, 20, 20, 20, 20, 20, 8, 7, 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, 1, 1] [2018-04-12 04:08:33,474 INFO L408 AbstractCegarLoop]: === Iteration 24 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:33,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1554224804, now seen corresponding path program 4 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 [2018-04-12 04:08:33,482 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:33,567 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:33,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2445 backedges. 1058 proven. 100 refuted. 0 times theorem prover too weak. 1287 trivial. 0 not checked. [2018-04-12 04:08:33,824 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:34,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2445 backedges. 1058 proven. 100 refuted. 0 times theorem prover too weak. 1287 trivial. 0 not checked. [2018-04-12 04:08:34,206 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:34,206 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 40 [2018-04-12 04:08:34,207 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-04-12 04:08:34,207 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-04-12 04:08:34,207 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=1326, Unknown=0, NotChecked=0, Total=1560 [2018-04-12 04:08:34,207 INFO L87 Difference]: Start difference. First operand 450 states and 456 transitions. Second operand 40 states. [2018-04-12 04:08:34,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:34,795 INFO L93 Difference]: Finished difference Result 574 states and 584 transitions. [2018-04-12 04:08:34,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-04-12 04:08:34,795 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 350 [2018-04-12 04:08:34,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:34,798 INFO L225 Difference]: With dead ends: 574 [2018-04-12 04:08:34,798 INFO L226 Difference]: Without dead ends: 460 [2018-04-12 04:08:34,800 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 730 GetRequests, 647 SyntacticMatches, 15 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1703 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=835, Invalid=3995, Unknown=0, NotChecked=0, Total=4830 [2018-04-12 04:08:34,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2018-04-12 04:08:34,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 450. [2018-04-12 04:08:34,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2018-04-12 04:08:34,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 454 transitions. [2018-04-12 04:08:34,820 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 454 transitions. Word has length 350 [2018-04-12 04:08:34,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:34,821 INFO L459 AbstractCegarLoop]: Abstraction has 450 states and 454 transitions. [2018-04-12 04:08:34,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-04-12 04:08:34,821 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 454 transitions. [2018-04-12 04:08:34,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2018-04-12 04:08:34,824 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:34,824 INFO L355 BasicCegarLoop]: trace histogram [28, 21, 21, 21, 21, 21, 21, 21, 21, 8, 7, 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, 1, 1] [2018-04-12 04:08:34,824 INFO L408 AbstractCegarLoop]: === Iteration 25 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:34,824 INFO L82 PathProgramCache]: Analyzing trace with hash -525025406, now seen corresponding path program 5 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 [2018-04-12 04:08:34,833 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:34,928 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:35,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2639 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 2394 trivial. 0 not checked. [2018-04-12 04:08:35,167 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:35,388 INFO L134 CoverageAnalysis]: Checked inductivity of 2639 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 2394 trivial. 0 not checked. [2018-04-12 04:08:35,408 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:35,408 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2018-04-12 04:08:35,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-12 04:08:35,409 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-12 04:08:35,409 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2018-04-12 04:08:35,409 INFO L87 Difference]: Start difference. First operand 450 states and 454 transitions. Second operand 32 states. [2018-04-12 04:08:35,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:35,839 INFO L93 Difference]: Finished difference Result 572 states and 592 transitions. [2018-04-12 04:08:35,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-12 04:08:35,839 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 359 [2018-04-12 04:08:35,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:35,841 INFO L225 Difference]: With dead ends: 572 [2018-04-12 04:08:35,842 INFO L226 Difference]: Without dead ends: 552 [2018-04-12 04:08:35,843 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 745 GetRequests, 687 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1155, Invalid=2385, Unknown=0, NotChecked=0, Total=3540 [2018-04-12 04:08:35,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2018-04-12 04:08:35,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 535. [2018-04-12 04:08:35,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 535 states. [2018-04-12 04:08:35,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 546 transitions. [2018-04-12 04:08:35,871 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 546 transitions. Word has length 359 [2018-04-12 04:08:35,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:35,872 INFO L459 AbstractCegarLoop]: Abstraction has 535 states and 546 transitions. [2018-04-12 04:08:35,872 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-12 04:08:35,872 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 546 transitions. [2018-04-12 04:08:35,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2018-04-12 04:08:35,875 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:35,875 INFO L355 BasicCegarLoop]: trace histogram [36, 29, 28, 28, 28, 28, 28, 28, 28, 8, 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, 1, 1] [2018-04-12 04:08:35,875 INFO L408 AbstractCegarLoop]: === Iteration 26 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:35,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1688941937, now seen corresponding path program 12 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 [2018-04-12 04:08:35,884 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:35,992 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:36,455 INFO L134 CoverageAnalysis]: Checked inductivity of 4403 backedges. 1743 proven. 266 refuted. 0 times theorem prover too weak. 2394 trivial. 0 not checked. [2018-04-12 04:08:36,456 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:36,865 INFO L134 CoverageAnalysis]: Checked inductivity of 4403 backedges. 1743 proven. 266 refuted. 0 times theorem prover too weak. 2394 trivial. 0 not checked. [2018-04-12 04:08:36,886 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:36,886 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 49 [2018-04-12 04:08:36,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-04-12 04:08:36,887 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-04-12 04:08:36,888 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=2031, Unknown=0, NotChecked=0, Total=2352 [2018-04-12 04:08:36,888 INFO L87 Difference]: Start difference. First operand 535 states and 546 transitions. Second operand 49 states. [2018-04-12 04:08:37,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:37,755 INFO L93 Difference]: Finished difference Result 801 states and 824 transitions. [2018-04-12 04:08:37,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-04-12 04:08:37,755 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 424 [2018-04-12 04:08:37,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:37,758 INFO L225 Difference]: With dead ends: 801 [2018-04-12 04:08:37,758 INFO L226 Difference]: Without dead ends: 619 [2018-04-12 04:08:37,760 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 884 GetRequests, 783 SyntacticMatches, 17 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1816 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1221, Invalid=6089, Unknown=0, NotChecked=0, Total=7310 [2018-04-12 04:08:37,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2018-04-12 04:08:37,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 608. [2018-04-12 04:08:37,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2018-04-12 04:08:37,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 619 transitions. [2018-04-12 04:08:37,789 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 619 transitions. Word has length 424 [2018-04-12 04:08:37,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:37,790 INFO L459 AbstractCegarLoop]: Abstraction has 608 states and 619 transitions. [2018-04-12 04:08:37,790 INFO L460 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-04-12 04:08:37,790 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 619 transitions. [2018-04-12 04:08:37,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2018-04-12 04:08:37,794 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:37,794 INFO L355 BasicCegarLoop]: trace histogram [43, 35, 34, 34, 34, 34, 34, 34, 34, 9, 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, 1, 1] [2018-04-12 04:08:37,794 INFO L408 AbstractCegarLoop]: === Iteration 27 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:37,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1896947665, now seen corresponding path program 13 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 [2018-04-12 04:08:37,803 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:37,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:37,919 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:38,277 INFO L134 CoverageAnalysis]: Checked inductivity of 6379 backedges. 3614 proven. 147 refuted. 0 times theorem prover too weak. 2618 trivial. 0 not checked. [2018-04-12 04:08:38,277 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:38,774 INFO L134 CoverageAnalysis]: Checked inductivity of 6379 backedges. 3614 proven. 147 refuted. 0 times theorem prover too weak. 2618 trivial. 0 not checked. [2018-04-12 04:08:38,794 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:38,926 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 46 [2018-04-12 04:08:38,927 INFO L442 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-04-12 04:08:38,927 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-04-12 04:08:38,928 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=1770, Unknown=0, NotChecked=0, Total=2070 [2018-04-12 04:08:38,928 INFO L87 Difference]: Start difference. First operand 608 states and 619 transitions. Second operand 46 states. [2018-04-12 04:08:39,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:39,633 INFO L93 Difference]: Finished difference Result 810 states and 836 transitions. [2018-04-12 04:08:39,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-04-12 04:08:39,633 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 499 [2018-04-12 04:08:39,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:39,635 INFO L225 Difference]: With dead ends: 810 [2018-04-12 04:08:39,635 INFO L226 Difference]: Without dead ends: 622 [2018-04-12 04:08:39,637 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1033 GetRequests, 937 SyntacticMatches, 17 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2354 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1102, Invalid=5378, Unknown=0, NotChecked=0, Total=6480 [2018-04-12 04:08:39,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2018-04-12 04:08:39,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 608. [2018-04-12 04:08:39,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2018-04-12 04:08:39,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 617 transitions. [2018-04-12 04:08:39,661 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 617 transitions. Word has length 499 [2018-04-12 04:08:39,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:39,662 INFO L459 AbstractCegarLoop]: Abstraction has 608 states and 617 transitions. [2018-04-12 04:08:39,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-04-12 04:08:39,662 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 617 transitions. [2018-04-12 04:08:39,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2018-04-12 04:08:39,666 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:39,666 INFO L355 BasicCegarLoop]: trace histogram [44, 36, 35, 35, 35, 35, 35, 35, 35, 9, 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, 1, 1] [2018-04-12 04:08:39,666 INFO L408 AbstractCegarLoop]: === Iteration 28 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:39,667 INFO L82 PathProgramCache]: Analyzing trace with hash 342238647, now seen corresponding path program 14 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 [2018-04-12 04:08:39,681 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:39,799 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:40,047 INFO L134 CoverageAnalysis]: Checked inductivity of 6704 backedges. 1976 proven. 210 refuted. 0 times theorem prover too weak. 4518 trivial. 0 not checked. [2018-04-12 04:08:40,047 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:40,445 INFO L134 CoverageAnalysis]: Checked inductivity of 6704 backedges. 1976 proven. 210 refuted. 0 times theorem prover too weak. 4518 trivial. 0 not checked. [2018-04-12 04:08:40,465 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:40,465 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2018-04-12 04:08:40,466 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-12 04:08:40,466 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-12 04:08:40,466 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=818, Unknown=0, NotChecked=0, Total=992 [2018-04-12 04:08:40,466 INFO L87 Difference]: Start difference. First operand 608 states and 617 transitions. Second operand 32 states. [2018-04-12 04:08:41,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:41,459 INFO L93 Difference]: Finished difference Result 717 states and 789 transitions. [2018-04-12 04:08:41,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-12 04:08:41,460 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 508 [2018-04-12 04:08:41,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:41,462 INFO L225 Difference]: With dead ends: 717 [2018-04-12 04:08:41,462 INFO L226 Difference]: Without dead ends: 716 [2018-04-12 04:08:41,463 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1051 GetRequests, 993 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=862, Invalid=2678, Unknown=0, NotChecked=0, Total=3540 [2018-04-12 04:08:41,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2018-04-12 04:08:41,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 679. [2018-04-12 04:08:41,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 679 states. [2018-04-12 04:08:41,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 703 transitions. [2018-04-12 04:08:41,486 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 703 transitions. Word has length 508 [2018-04-12 04:08:41,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:41,486 INFO L459 AbstractCegarLoop]: Abstraction has 679 states and 703 transitions. [2018-04-12 04:08:41,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-12 04:08:41,486 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 703 transitions. [2018-04-12 04:08:41,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2018-04-12 04:08:41,489 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:41,489 INFO L355 BasicCegarLoop]: trace histogram [44, 36, 36, 35, 35, 35, 35, 35, 35, 9, 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, 1, 1] [2018-04-12 04:08:41,489 INFO L408 AbstractCegarLoop]: === Iteration 29 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:41,489 INFO L82 PathProgramCache]: Analyzing trace with hash 2019463698, 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 [2018-04-12 04:08:41,495 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:41,602 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:41,617 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 [2018-04-12 04:08:41,618 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 04:08:41,644 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 04:08:41,644 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-12 04:08:42,526 INFO L134 CoverageAnalysis]: Checked inductivity of 6739 backedges. 2044 proven. 233 refuted. 0 times theorem prover too weak. 4462 trivial. 0 not checked. [2018-04-12 04:08:42,526 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:43,151 INFO L134 CoverageAnalysis]: Checked inductivity of 6739 backedges. 2044 proven. 233 refuted. 0 times theorem prover too weak. 4462 trivial. 0 not checked. [2018-04-12 04:08:43,171 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:43,172 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20] total 40 [2018-04-12 04:08:43,173 INFO L442 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-04-12 04:08:43,173 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-04-12 04:08:43,173 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=1395, Unknown=0, NotChecked=0, Total=1640 [2018-04-12 04:08:43,173 INFO L87 Difference]: Start difference. First operand 679 states and 703 transitions. Second operand 41 states. [2018-04-12 04:08:45,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:45,167 INFO L93 Difference]: Finished difference Result 708 states and 780 transitions. [2018-04-12 04:08:45,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-12 04:08:45,167 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 509 [2018-04-12 04:08:45,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:45,170 INFO L225 Difference]: With dead ends: 708 [2018-04-12 04:08:45,170 INFO L226 Difference]: Without dead ends: 707 [2018-04-12 04:08:45,171 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1050 GetRequests, 964 SyntacticMatches, 15 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 989 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1171, Invalid=4085, Unknown=0, NotChecked=0, Total=5256 [2018-04-12 04:08:45,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2018-04-12 04:08:45,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 680. [2018-04-12 04:08:45,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 680 states. [2018-04-12 04:08:45,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 697 transitions. [2018-04-12 04:08:45,201 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 697 transitions. Word has length 509 [2018-04-12 04:08:45,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:45,202 INFO L459 AbstractCegarLoop]: Abstraction has 680 states and 697 transitions. [2018-04-12 04:08:45,202 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-04-12 04:08:45,202 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 697 transitions. [2018-04-12 04:08:45,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2018-04-12 04:08:45,206 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:45,207 INFO L355 BasicCegarLoop]: trace histogram [52, 44, 43, 43, 43, 43, 43, 43, 43, 9, 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, 1, 1] [2018-04-12 04:08:45,207 INFO L408 AbstractCegarLoop]: === Iteration 30 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:45,207 INFO L82 PathProgramCache]: Analyzing trace with hash 2046969015, now seen corresponding path program 15 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 [2018-04-12 04:08:45,216 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:45,324 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:45,813 INFO L134 CoverageAnalysis]: Checked inductivity of 9628 backedges. 4954 proven. 348 refuted. 0 times theorem prover too weak. 4326 trivial. 0 not checked. [2018-04-12 04:08:45,814 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:46,357 INFO L134 CoverageAnalysis]: Checked inductivity of 9628 backedges. 4954 proven. 348 refuted. 0 times theorem prover too weak. 4326 trivial. 0 not checked. [2018-04-12 04:08:46,378 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:46,378 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 55 [2018-04-12 04:08:46,378 INFO L442 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-04-12 04:08:46,379 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-04-12 04:08:46,379 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=2573, Unknown=0, NotChecked=0, Total=2970 [2018-04-12 04:08:46,379 INFO L87 Difference]: Start difference. First operand 680 states and 697 transitions. Second operand 55 states. [2018-04-12 04:08:47,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:47,446 INFO L93 Difference]: Finished difference Result 1016 states and 1051 transitions. [2018-04-12 04:08:47,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-04-12 04:08:47,446 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 580 [2018-04-12 04:08:47,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:47,449 INFO L225 Difference]: With dead ends: 1016 [2018-04-12 04:08:47,449 INFO L226 Difference]: Without dead ends: 773 [2018-04-12 04:08:47,451 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1201 GetRequests, 1087 SyntacticMatches, 19 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2356 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1536, Invalid=7776, Unknown=0, NotChecked=0, Total=9312 [2018-04-12 04:08:47,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2018-04-12 04:08:47,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 762. [2018-04-12 04:08:47,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-04-12 04:08:47,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 779 transitions. [2018-04-12 04:08:47,482 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 779 transitions. Word has length 580 [2018-04-12 04:08:47,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:47,482 INFO L459 AbstractCegarLoop]: Abstraction has 762 states and 779 transitions. [2018-04-12 04:08:47,482 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-04-12 04:08:47,482 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 779 transitions. [2018-04-12 04:08:47,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2018-04-12 04:08:47,488 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:47,488 INFO L355 BasicCegarLoop]: trace histogram [60, 51, 50, 50, 50, 50, 50, 50, 50, 10, 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, 1, 1] [2018-04-12 04:08:47,488 INFO L408 AbstractCegarLoop]: === Iteration 31 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:47,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1163087869, now seen corresponding path program 16 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 [2018-04-12 04:08:47,496 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:47,599 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:48,121 INFO L134 CoverageAnalysis]: Checked inductivity of 12939 backedges. 7600 proven. 203 refuted. 0 times theorem prover too weak. 5136 trivial. 0 not checked. [2018-04-12 04:08:48,121 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:48,726 INFO L134 CoverageAnalysis]: Checked inductivity of 12939 backedges. 7600 proven. 203 refuted. 0 times theorem prover too weak. 5136 trivial. 0 not checked. [2018-04-12 04:08:48,746 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:48,747 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 52 [2018-04-12 04:08:48,747 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-04-12 04:08:48,747 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-04-12 04:08:48,747 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=374, Invalid=2278, Unknown=0, NotChecked=0, Total=2652 [2018-04-12 04:08:48,748 INFO L87 Difference]: Start difference. First operand 762 states and 779 transitions. Second operand 52 states. [2018-04-12 04:08:49,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:49,621 INFO L93 Difference]: Finished difference Result 1021 states and 1058 transitions. [2018-04-12 04:08:49,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-04-12 04:08:49,621 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 664 [2018-04-12 04:08:49,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:49,624 INFO L225 Difference]: With dead ends: 1021 [2018-04-12 04:08:49,624 INFO L226 Difference]: Without dead ends: 772 [2018-04-12 04:08:49,627 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1368 GetRequests, 1259 SyntacticMatches, 19 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3110 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1406, Invalid=6966, Unknown=0, NotChecked=0, Total=8372 [2018-04-12 04:08:49,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2018-04-12 04:08:49,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 762. [2018-04-12 04:08:49,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-04-12 04:08:49,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 777 transitions. [2018-04-12 04:08:49,655 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 777 transitions. Word has length 664 [2018-04-12 04:08:49,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:49,656 INFO L459 AbstractCegarLoop]: Abstraction has 762 states and 777 transitions. [2018-04-12 04:08:49,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-04-12 04:08:49,656 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 777 transitions. [2018-04-12 04:08:49,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2018-04-12 04:08:49,662 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:49,662 INFO L355 BasicCegarLoop]: trace histogram [61, 52, 51, 51, 51, 51, 51, 51, 51, 10, 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, 1, 1] [2018-04-12 04:08:49,662 INFO L408 AbstractCegarLoop]: === Iteration 32 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:49,663 INFO L82 PathProgramCache]: Analyzing trace with hash 830831371, now seen corresponding path program 17 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 [2018-04-12 04:08:49,671 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:49,814 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:50,388 INFO L134 CoverageAnalysis]: Checked inductivity of 13410 backedges. 6150 proven. 441 refuted. 0 times theorem prover too weak. 6819 trivial. 0 not checked. [2018-04-12 04:08:50,389 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:51,039 INFO L134 CoverageAnalysis]: Checked inductivity of 13410 backedges. 6150 proven. 441 refuted. 0 times theorem prover too weak. 6819 trivial. 0 not checked. [2018-04-12 04:08:51,059 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:51,059 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 61 [2018-04-12 04:08:51,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 61 states [2018-04-12 04:08:51,060 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2018-04-12 04:08:51,061 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=481, Invalid=3179, Unknown=0, NotChecked=0, Total=3660 [2018-04-12 04:08:51,061 INFO L87 Difference]: Start difference. First operand 762 states and 777 transitions. Second operand 61 states. [2018-04-12 04:08:52,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:52,363 INFO L93 Difference]: Finished difference Result 1096 states and 1127 transitions. [2018-04-12 04:08:52,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-04-12 04:08:52,363 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 673 [2018-04-12 04:08:52,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:52,366 INFO L225 Difference]: With dead ends: 1096 [2018-04-12 04:08:52,366 INFO L226 Difference]: Without dead ends: 864 [2018-04-12 04:08:52,368 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1392 GetRequests, 1265 SyntacticMatches, 21 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2966 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1887, Invalid=9669, Unknown=0, NotChecked=0, Total=11556 [2018-04-12 04:08:52,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2018-04-12 04:08:52,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 853. [2018-04-12 04:08:52,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 853 states. [2018-04-12 04:08:52,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 868 transitions. [2018-04-12 04:08:52,389 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 868 transitions. Word has length 673 [2018-04-12 04:08:52,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:52,389 INFO L459 AbstractCegarLoop]: Abstraction has 853 states and 868 transitions. [2018-04-12 04:08:52,389 INFO L460 AbstractCegarLoop]: Interpolant automaton has 61 states. [2018-04-12 04:08:52,389 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 868 transitions. [2018-04-12 04:08:52,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 767 [2018-04-12 04:08:52,394 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:52,394 INFO L355 BasicCegarLoop]: trace histogram [70, 60, 59, 59, 59, 59, 59, 59, 59, 11, 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, 1, 1] [2018-04-12 04:08:52,394 INFO L408 AbstractCegarLoop]: === Iteration 33 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:52,394 INFO L82 PathProgramCache]: Analyzing trace with hash -86575817, now seen corresponding path program 18 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 [2018-04-12 04:08:52,407 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:52,545 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:53,147 INFO L134 CoverageAnalysis]: Checked inductivity of 17821 backedges. 9867 proven. 268 refuted. 0 times theorem prover too weak. 7686 trivial. 0 not checked. [2018-04-12 04:08:53,148 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:53,910 INFO L134 CoverageAnalysis]: Checked inductivity of 17821 backedges. 9867 proven. 268 refuted. 0 times theorem prover too weak. 7686 trivial. 0 not checked. [2018-04-12 04:08:53,929 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:53,930 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 58 [2018-04-12 04:08:53,930 INFO L442 AbstractCegarLoop]: Interpolant automaton has 58 states [2018-04-12 04:08:53,930 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2018-04-12 04:08:53,931 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=456, Invalid=2850, Unknown=0, NotChecked=0, Total=3306 [2018-04-12 04:08:53,931 INFO L87 Difference]: Start difference. First operand 853 states and 868 transitions. Second operand 58 states. [2018-04-12 04:08:54,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:54,825 INFO L93 Difference]: Finished difference Result 1101 states and 1133 transitions. [2018-04-12 04:08:54,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-04-12 04:08:54,872 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 766 [2018-04-12 04:08:54,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:54,874 INFO L225 Difference]: With dead ends: 1101 [2018-04-12 04:08:54,874 INFO L226 Difference]: Without dead ends: 863 [2018-04-12 04:08:54,876 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1577 GetRequests, 1455 SyntacticMatches, 21 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3971 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1747, Invalid=8759, Unknown=0, NotChecked=0, Total=10506 [2018-04-12 04:08:54,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2018-04-12 04:08:54,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 853. [2018-04-12 04:08:54,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 853 states. [2018-04-12 04:08:54,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 866 transitions. [2018-04-12 04:08:54,896 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 866 transitions. Word has length 766 [2018-04-12 04:08:54,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:54,896 INFO L459 AbstractCegarLoop]: Abstraction has 853 states and 866 transitions. [2018-04-12 04:08:54,896 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states. [2018-04-12 04:08:54,897 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 866 transitions. [2018-04-12 04:08:54,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 776 [2018-04-12 04:08:54,900 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:54,901 INFO L355 BasicCegarLoop]: trace histogram [71, 61, 60, 60, 60, 60, 60, 60, 60, 11, 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, 1, 1] [2018-04-12 04:08:54,901 INFO L408 AbstractCegarLoop]: === Iteration 34 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:54,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1376839919, now seen corresponding path program 19 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 [2018-04-12 04:08:54,907 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:55,052 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:55,792 INFO L134 CoverageAnalysis]: Checked inductivity of 18375 backedges. 7475 proven. 545 refuted. 0 times theorem prover too weak. 10355 trivial. 0 not checked. [2018-04-12 04:08:55,792 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:56,597 INFO L134 CoverageAnalysis]: Checked inductivity of 18375 backedges. 7475 proven. 545 refuted. 0 times theorem prover too weak. 10355 trivial. 0 not checked. [2018-04-12 04:08:56,616 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:56,617 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 67 [2018-04-12 04:08:56,617 INFO L442 AbstractCegarLoop]: Interpolant automaton has 67 states [2018-04-12 04:08:56,618 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2018-04-12 04:08:56,618 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=573, Invalid=3849, Unknown=0, NotChecked=0, Total=4422 [2018-04-12 04:08:56,618 INFO L87 Difference]: Start difference. First operand 853 states and 866 transitions. Second operand 67 states. [2018-04-12 04:08:58,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:08:58,051 INFO L93 Difference]: Finished difference Result 1185 states and 1212 transitions. [2018-04-12 04:08:58,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2018-04-12 04:08:58,051 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 775 [2018-04-12 04:08:58,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:08:58,054 INFO L225 Difference]: With dead ends: 1185 [2018-04-12 04:08:58,055 INFO L226 Difference]: Without dead ends: 964 [2018-04-12 04:08:58,057 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1601 GetRequests, 1461 SyntacticMatches, 23 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3646 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2274, Invalid=11768, Unknown=0, NotChecked=0, Total=14042 [2018-04-12 04:08:58,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2018-04-12 04:08:58,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 953. [2018-04-12 04:08:58,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 953 states. [2018-04-12 04:08:58,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 966 transitions. [2018-04-12 04:08:58,084 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 966 transitions. Word has length 775 [2018-04-12 04:08:58,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:08:58,084 INFO L459 AbstractCegarLoop]: Abstraction has 953 states and 966 transitions. [2018-04-12 04:08:58,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 67 states. [2018-04-12 04:08:58,085 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 966 transitions. [2018-04-12 04:08:58,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 878 [2018-04-12 04:08:58,089 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:08:58,090 INFO L355 BasicCegarLoop]: trace histogram [81, 70, 69, 69, 69, 69, 69, 69, 69, 12, 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, 1, 1] [2018-04-12 04:08:58,090 INFO L408 AbstractCegarLoop]: === Iteration 35 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:08:58,090 INFO L82 PathProgramCache]: Analyzing trace with hash -875934057, now seen corresponding path program 20 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 [2018-04-12 04:08:58,096 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:08:58,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:08:58,241 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:08:58,987 INFO L134 CoverageAnalysis]: Checked inductivity of 24126 backedges. 12514 proven. 342 refuted. 0 times theorem prover too weak. 11270 trivial. 0 not checked. [2018-04-12 04:08:58,987 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:08:59,909 INFO L134 CoverageAnalysis]: Checked inductivity of 24126 backedges. 12514 proven. 342 refuted. 0 times theorem prover too weak. 11270 trivial. 0 not checked. [2018-04-12 04:08:59,929 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:08:59,930 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 64 [2018-04-12 04:08:59,930 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-04-12 04:08:59,931 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-04-12 04:08:59,931 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=546, Invalid=3486, Unknown=0, NotChecked=0, Total=4032 [2018-04-12 04:08:59,931 INFO L87 Difference]: Start difference. First operand 953 states and 966 transitions. Second operand 64 states. [2018-04-12 04:09:00,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:09:00,935 INFO L93 Difference]: Finished difference Result 1190 states and 1217 transitions. [2018-04-12 04:09:00,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-04-12 04:09:00,935 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 877 [2018-04-12 04:09:00,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:09:00,938 INFO L225 Difference]: With dead ends: 1190 [2018-04-12 04:09:00,938 INFO L226 Difference]: Without dead ends: 963 [2018-04-12 04:09:00,939 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1804 GetRequests, 1669 SyntacticMatches, 23 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4937 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2125, Invalid=10757, Unknown=0, NotChecked=0, Total=12882 [2018-04-12 04:09:00,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2018-04-12 04:09:00,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 953. [2018-04-12 04:09:00,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 953 states. [2018-04-12 04:09:00,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 964 transitions. [2018-04-12 04:09:00,959 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 964 transitions. Word has length 877 [2018-04-12 04:09:00,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:09:00,960 INFO L459 AbstractCegarLoop]: Abstraction has 953 states and 964 transitions. [2018-04-12 04:09:00,960 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-04-12 04:09:00,960 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 964 transitions. [2018-04-12 04:09:00,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 887 [2018-04-12 04:09:00,964 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:09:00,965 INFO L355 BasicCegarLoop]: trace histogram [82, 71, 70, 70, 70, 70, 70, 70, 70, 12, 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, 1, 1] [2018-04-12 04:09:00,965 INFO L408 AbstractCegarLoop]: === Iteration 36 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:09:00,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1647987121, now seen corresponding path program 21 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 [2018-04-12 04:09:00,971 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:09:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:09:01,104 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:09:01,978 INFO L134 CoverageAnalysis]: Checked inductivity of 24772 backedges. 8929 proven. 660 refuted. 0 times theorem prover too weak. 15183 trivial. 0 not checked. [2018-04-12 04:09:01,979 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:09:02,931 INFO L134 CoverageAnalysis]: Checked inductivity of 24772 backedges. 8929 proven. 660 refuted. 0 times theorem prover too weak. 15183 trivial. 0 not checked. [2018-04-12 04:09:02,956 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:09:02,956 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 73 [2018-04-12 04:09:02,957 INFO L442 AbstractCegarLoop]: Interpolant automaton has 73 states [2018-04-12 04:09:02,957 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2018-04-12 04:09:02,957 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=673, Invalid=4583, Unknown=0, NotChecked=0, Total=5256 [2018-04-12 04:09:02,957 INFO L87 Difference]: Start difference. First operand 953 states and 964 transitions. Second operand 73 states. [2018-04-12 04:09:04,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:09:04,727 INFO L93 Difference]: Finished difference Result 1283 states and 1306 transitions. [2018-04-12 04:09:04,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-04-12 04:09:04,727 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 886 [2018-04-12 04:09:04,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:09:04,730 INFO L225 Difference]: With dead ends: 1283 [2018-04-12 04:09:04,730 INFO L226 Difference]: Without dead ends: 1073 [2018-04-12 04:09:04,731 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1828 GetRequests, 1675 SyntacticMatches, 25 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4396 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2697, Invalid=14073, Unknown=0, NotChecked=0, Total=16770 [2018-04-12 04:09:04,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2018-04-12 04:09:04,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1062. [2018-04-12 04:09:04,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1062 states. [2018-04-12 04:09:04,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1073 transitions. [2018-04-12 04:09:04,756 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1073 transitions. Word has length 886 [2018-04-12 04:09:04,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:09:04,756 INFO L459 AbstractCegarLoop]: Abstraction has 1062 states and 1073 transitions. [2018-04-12 04:09:04,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 73 states. [2018-04-12 04:09:04,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1073 transitions. [2018-04-12 04:09:04,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 998 [2018-04-12 04:09:04,762 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:09:04,762 INFO L355 BasicCegarLoop]: trace histogram [93, 81, 80, 80, 80, 80, 80, 80, 80, 13, 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, 1, 1] [2018-04-12 04:09:04,762 INFO L408 AbstractCegarLoop]: === Iteration 37 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:09:04,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1705573615, now seen corresponding path program 22 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 [2018-04-12 04:09:04,769 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:09:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:09:04,918 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:09:05,948 INFO L134 CoverageAnalysis]: Checked inductivity of 32130 backedges. 15568 proven. 425 refuted. 0 times theorem prover too weak. 16137 trivial. 0 not checked. [2018-04-12 04:09:05,948 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:09:07,052 INFO L134 CoverageAnalysis]: Checked inductivity of 32130 backedges. 15568 proven. 425 refuted. 0 times theorem prover too weak. 16137 trivial. 0 not checked. [2018-04-12 04:09:07,073 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:09:07,073 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 70 [2018-04-12 04:09:07,074 INFO L442 AbstractCegarLoop]: Interpolant automaton has 70 states [2018-04-12 04:09:07,074 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2018-04-12 04:09:07,074 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=644, Invalid=4186, Unknown=0, NotChecked=0, Total=4830 [2018-04-12 04:09:07,074 INFO L87 Difference]: Start difference. First operand 1062 states and 1073 transitions. Second operand 70 states. [2018-04-12 04:09:08,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:09:08,193 INFO L93 Difference]: Finished difference Result 1288 states and 1310 transitions. [2018-04-12 04:09:08,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2018-04-12 04:09:08,193 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 997 [2018-04-12 04:09:08,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:09:08,196 INFO L225 Difference]: With dead ends: 1288 [2018-04-12 04:09:08,196 INFO L226 Difference]: Without dead ends: 1072 [2018-04-12 04:09:08,198 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2049 GetRequests, 1901 SyntacticMatches, 25 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6008 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2540, Invalid=12960, Unknown=0, NotChecked=0, Total=15500 [2018-04-12 04:09:08,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2018-04-12 04:09:08,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1062. [2018-04-12 04:09:08,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1062 states. [2018-04-12 04:09:08,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1071 transitions. [2018-04-12 04:09:08,232 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1071 transitions. Word has length 997 [2018-04-12 04:09:08,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:09:08,233 INFO L459 AbstractCegarLoop]: Abstraction has 1062 states and 1071 transitions. [2018-04-12 04:09:08,233 INFO L460 AbstractCegarLoop]: Interpolant automaton has 70 states. [2018-04-12 04:09:08,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1071 transitions. [2018-04-12 04:09:08,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1007 [2018-04-12 04:09:08,239 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:09:08,239 INFO L355 BasicCegarLoop]: trace histogram [94, 82, 81, 81, 81, 81, 81, 81, 81, 13, 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, 1, 1] [2018-04-12 04:09:08,239 INFO L408 AbstractCegarLoop]: === Iteration 38 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:09:08,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1069022839, now seen corresponding path program 23 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 [2018-04-12 04:09:08,247 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:09:08,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:09:08,415 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:09:09,439 INFO L134 CoverageAnalysis]: Checked inductivity of 32877 backedges. 10512 proven. 786 refuted. 0 times theorem prover too weak. 21579 trivial. 0 not checked. [2018-04-12 04:09:09,439 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:09:10,565 INFO L134 CoverageAnalysis]: Checked inductivity of 32877 backedges. 10512 proven. 786 refuted. 0 times theorem prover too weak. 21579 trivial. 0 not checked. [2018-04-12 04:09:10,585 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:09:10,586 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 79 [2018-04-12 04:09:10,586 INFO L442 AbstractCegarLoop]: Interpolant automaton has 79 states [2018-04-12 04:09:10,587 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2018-04-12 04:09:10,587 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=781, Invalid=5381, Unknown=0, NotChecked=0, Total=6162 [2018-04-12 04:09:10,587 INFO L87 Difference]: Start difference. First operand 1062 states and 1071 transitions. Second operand 79 states. [2018-04-12 04:09:12,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:09:12,492 INFO L93 Difference]: Finished difference Result 1390 states and 1409 transitions. [2018-04-12 04:09:12,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-04-12 04:09:12,493 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 1006 [2018-04-12 04:09:12,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:09:12,496 INFO L225 Difference]: With dead ends: 1390 [2018-04-12 04:09:12,496 INFO L226 Difference]: Without dead ends: 1191 [2018-04-12 04:09:12,497 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2073 GetRequests, 1907 SyntacticMatches, 27 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5216 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=3156, Invalid=16584, Unknown=0, NotChecked=0, Total=19740 [2018-04-12 04:09:12,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2018-04-12 04:09:12,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 1180. [2018-04-12 04:09:12,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1180 states. [2018-04-12 04:09:12,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1189 transitions. [2018-04-12 04:09:12,522 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1189 transitions. Word has length 1006 [2018-04-12 04:09:12,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:09:12,523 INFO L459 AbstractCegarLoop]: Abstraction has 1180 states and 1189 transitions. [2018-04-12 04:09:12,523 INFO L460 AbstractCegarLoop]: Interpolant automaton has 79 states. [2018-04-12 04:09:12,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1189 transitions. [2018-04-12 04:09:12,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1127 [2018-04-12 04:09:12,530 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:09:12,530 INFO L355 BasicCegarLoop]: trace histogram [106, 93, 92, 92, 92, 92, 92, 92, 92, 14, 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, 1, 1] [2018-04-12 04:09:12,530 INFO L408 AbstractCegarLoop]: === Iteration 39 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:09:12,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1892645181, now seen corresponding path program 24 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 [2018-04-12 04:09:12,536 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:09:12,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:09:12,724 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:09:13,802 INFO L134 CoverageAnalysis]: Checked inductivity of 42136 backedges. 19056 proven. 517 refuted. 0 times theorem prover too weak. 22563 trivial. 0 not checked. [2018-04-12 04:09:13,802 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:09:15,155 INFO L134 CoverageAnalysis]: Checked inductivity of 42136 backedges. 19056 proven. 517 refuted. 0 times theorem prover too weak. 22563 trivial. 0 not checked. [2018-04-12 04:09:15,188 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:09:15,189 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 76 [2018-04-12 04:09:15,190 INFO L442 AbstractCegarLoop]: Interpolant automaton has 76 states [2018-04-12 04:09:15,191 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2018-04-12 04:09:15,191 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=750, Invalid=4950, Unknown=0, NotChecked=0, Total=5700 [2018-04-12 04:09:15,191 INFO L87 Difference]: Start difference. First operand 1180 states and 1189 transitions. Second operand 76 states. [2018-04-12 04:09:16,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:09:16,873 INFO L93 Difference]: Finished difference Result 1395 states and 1412 transitions. [2018-04-12 04:09:16,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2018-04-12 04:09:16,873 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 1126 [2018-04-12 04:09:16,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:09:16,876 INFO L225 Difference]: With dead ends: 1395 [2018-04-12 04:09:16,876 INFO L226 Difference]: Without dead ends: 1190 [2018-04-12 04:09:16,877 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2312 GetRequests, 2151 SyntacticMatches, 27 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7184 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2992, Invalid=15368, Unknown=0, NotChecked=0, Total=18360 [2018-04-12 04:09:16,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2018-04-12 04:09:16,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 1180. [2018-04-12 04:09:16,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1180 states. [2018-04-12 04:09:16,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1187 transitions. [2018-04-12 04:09:16,904 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1187 transitions. Word has length 1126 [2018-04-12 04:09:16,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:09:16,905 INFO L459 AbstractCegarLoop]: Abstraction has 1180 states and 1187 transitions. [2018-04-12 04:09:16,905 INFO L460 AbstractCegarLoop]: Interpolant automaton has 76 states. [2018-04-12 04:09:16,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1187 transitions. [2018-04-12 04:09:16,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1136 [2018-04-12 04:09:16,912 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:09:16,913 INFO L355 BasicCegarLoop]: trace histogram [107, 94, 93, 93, 93, 93, 93, 93, 93, 14, 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, 1, 1] [2018-04-12 04:09:16,913 INFO L408 AbstractCegarLoop]: === Iteration 40 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:09:16,913 INFO L82 PathProgramCache]: Analyzing trace with hash 117684683, now seen corresponding path program 25 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 [2018-04-12 04:09:16,922 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:09:17,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:09:17,092 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:09:18,288 INFO L134 CoverageAnalysis]: Checked inductivity of 42993 backedges. 12224 proven. 923 refuted. 0 times theorem prover too weak. 29846 trivial. 0 not checked. [2018-04-12 04:09:18,289 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:09:19,651 INFO L134 CoverageAnalysis]: Checked inductivity of 42993 backedges. 12224 proven. 923 refuted. 0 times theorem prover too weak. 29846 trivial. 0 not checked. [2018-04-12 04:09:19,673 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:09:19,674 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 85 [2018-04-12 04:09:19,675 INFO L442 AbstractCegarLoop]: Interpolant automaton has 85 states [2018-04-12 04:09:19,675 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2018-04-12 04:09:19,676 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=897, Invalid=6243, Unknown=0, NotChecked=0, Total=7140 [2018-04-12 04:09:19,676 INFO L87 Difference]: Start difference. First operand 1180 states and 1187 transitions. Second operand 85 states. [2018-04-12 04:09:21,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:09:21,808 INFO L93 Difference]: Finished difference Result 1506 states and 1521 transitions. [2018-04-12 04:09:21,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2018-04-12 04:09:21,808 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 1135 [2018-04-12 04:09:21,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:09:21,811 INFO L225 Difference]: With dead ends: 1506 [2018-04-12 04:09:21,811 INFO L226 Difference]: Without dead ends: 1318 [2018-04-12 04:09:21,813 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2336 GetRequests, 2157 SyntacticMatches, 29 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6106 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=3651, Invalid=19301, Unknown=0, NotChecked=0, Total=22952 [2018-04-12 04:09:21,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2018-04-12 04:09:21,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1307. [2018-04-12 04:09:21,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1307 states. [2018-04-12 04:09:21,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1314 transitions. [2018-04-12 04:09:21,839 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1314 transitions. Word has length 1135 [2018-04-12 04:09:21,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:09:21,840 INFO L459 AbstractCegarLoop]: Abstraction has 1307 states and 1314 transitions. [2018-04-12 04:09:21,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 85 states. [2018-04-12 04:09:21,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1314 transitions. [2018-04-12 04:09:21,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1257 [2018-04-12 04:09:21,848 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:09:21,848 INFO L355 BasicCegarLoop]: trace histogram [117, 102, 102, 102, 102, 102, 102, 102, 102, 16, 15, 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, 1, 1] [2018-04-12 04:09:21,848 INFO L408 AbstractCegarLoop]: === Iteration 41 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:09:21,849 INFO L82 PathProgramCache]: Analyzing trace with hash -46060184, now seen corresponding path program 6 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 [2018-04-12 04:09:21,854 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:09:22,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:09:22,043 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:09:23,373 INFO L134 CoverageAnalysis]: Checked inductivity of 51654 backedges. 20549 proven. 618 refuted. 0 times theorem prover too weak. 30487 trivial. 0 not checked. [2018-04-12 04:09:23,374 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:09:24,989 INFO L134 CoverageAnalysis]: Checked inductivity of 51654 backedges. 10173 proven. 1970 refuted. 0 times theorem prover too weak. 39511 trivial. 0 not checked. [2018-04-12 04:09:25,009 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:09:25,010 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56] total 82 [2018-04-12 04:09:25,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 82 states [2018-04-12 04:09:25,011 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2018-04-12 04:09:25,011 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=864, Invalid=5778, Unknown=0, NotChecked=0, Total=6642 [2018-04-12 04:09:25,011 INFO L87 Difference]: Start difference. First operand 1307 states and 1314 transitions. Second operand 82 states. [2018-04-12 04:09:26,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:09:26,606 INFO L93 Difference]: Finished difference Result 1511 states and 1523 transitions. [2018-04-12 04:09:26,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2018-04-12 04:09:26,607 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 1256 [2018-04-12 04:09:26,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:09:26,610 INFO L225 Difference]: With dead ends: 1511 [2018-04-12 04:09:26,610 INFO L226 Difference]: Without dead ends: 1317 [2018-04-12 04:09:26,612 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2577 GetRequests, 2403 SyntacticMatches, 29 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8465 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=3481, Invalid=17981, Unknown=0, NotChecked=0, Total=21462 [2018-04-12 04:09:26,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2018-04-12 04:09:26,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1307. [2018-04-12 04:09:26,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1307 states. [2018-04-12 04:09:26,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1312 transitions. [2018-04-12 04:09:26,639 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1312 transitions. Word has length 1256 [2018-04-12 04:09:26,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:09:26,640 INFO L459 AbstractCegarLoop]: Abstraction has 1307 states and 1312 transitions. [2018-04-12 04:09:26,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 82 states. [2018-04-12 04:09:26,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1312 transitions. [2018-04-12 04:09:26,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1274 [2018-04-12 04:09:26,649 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:09:26,649 INFO L355 BasicCegarLoop]: trace histogram [121, 107, 106, 106, 106, 106, 106, 106, 106, 15, 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, 1, 1] [2018-04-12 04:09:26,650 INFO L408 AbstractCegarLoop]: === Iteration 42 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:09:26,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1711512401, 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 [2018-04-12 04:09:26,667 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:09:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:09:26,857 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:09:28,269 INFO L134 CoverageAnalysis]: Checked inductivity of 55450 backedges. 14065 proven. 1071 refuted. 0 times theorem prover too weak. 40314 trivial. 0 not checked. [2018-04-12 04:09:28,269 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:09:29,864 INFO L134 CoverageAnalysis]: Checked inductivity of 55450 backedges. 14065 proven. 1071 refuted. 0 times theorem prover too weak. 40314 trivial. 0 not checked. [2018-04-12 04:09:29,884 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:09:29,885 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62] total 91 [2018-04-12 04:09:29,886 INFO L442 AbstractCegarLoop]: Interpolant automaton has 91 states [2018-04-12 04:09:29,886 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2018-04-12 04:09:29,886 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1021, Invalid=7169, Unknown=0, NotChecked=0, Total=8190 [2018-04-12 04:09:29,886 INFO L87 Difference]: Start difference. First operand 1307 states and 1312 transitions. Second operand 91 states. [2018-04-12 04:09:32,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:09:32,464 INFO L93 Difference]: Finished difference Result 1642 states and 1655 transitions. [2018-04-12 04:09:32,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2018-04-12 04:09:32,465 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 1273 [2018-04-12 04:09:32,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:09:32,469 INFO L225 Difference]: With dead ends: 1642 [2018-04-12 04:09:32,469 INFO L226 Difference]: Without dead ends: 1462 [2018-04-12 04:09:32,471 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2617 GetRequests, 2425 SyntacticMatches, 31 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7066 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=4182, Invalid=22224, Unknown=0, NotChecked=0, Total=26406 [2018-04-12 04:09:32,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2018-04-12 04:09:32,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1446. [2018-04-12 04:09:32,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1446 states. [2018-04-12 04:09:32,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 1452 transitions. [2018-04-12 04:09:32,502 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 1452 transitions. Word has length 1273 [2018-04-12 04:09:32,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:09:32,502 INFO L459 AbstractCegarLoop]: Abstraction has 1446 states and 1452 transitions. [2018-04-12 04:09:32,502 INFO L460 AbstractCegarLoop]: Interpolant automaton has 91 states. [2018-04-12 04:09:32,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 1452 transitions. [2018-04-12 04:09:32,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1275 [2018-04-12 04:09:32,511 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:09:32,512 INFO L355 BasicCegarLoop]: trace histogram [119, 104, 104, 104, 104, 104, 104, 104, 104, 16, 15, 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, 1, 1] [2018-04-12 04:09:32,512 INFO L408 AbstractCegarLoop]: === Iteration 43 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:09:32,512 INFO L82 PathProgramCache]: Analyzing trace with hash 298394076, now seen corresponding path program 7 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 [2018-04-12 04:09:32,518 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:09:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:09:32,720 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:09:34,149 INFO L134 CoverageAnalysis]: Checked inductivity of 53559 backedges. 12490 proven. 728 refuted. 0 times theorem prover too weak. 40341 trivial. 0 not checked. [2018-04-12 04:09:34,150 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:09:36,003 INFO L134 CoverageAnalysis]: Checked inductivity of 53559 backedges. 12490 proven. 728 refuted. 0 times theorem prover too weak. 40341 trivial. 0 not checked. [2018-04-12 04:09:36,026 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:09:36,027 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 60] total 88 [2018-04-12 04:09:36,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 88 states [2018-04-12 04:09:36,029 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2018-04-12 04:09:36,029 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=986, Invalid=6670, Unknown=0, NotChecked=0, Total=7656 [2018-04-12 04:09:36,029 INFO L87 Difference]: Start difference. First operand 1446 states and 1452 transitions. Second operand 88 states. [2018-04-12 04:09:37,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:09:37,839 INFO L93 Difference]: Finished difference Result 1642 states and 1652 transitions. [2018-04-12 04:09:37,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2018-04-12 04:09:37,839 INFO L78 Accepts]: Start accepts. Automaton has 88 states. Word has length 1274 [2018-04-12 04:09:37,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:09:37,843 INFO L225 Difference]: With dead ends: 1642 [2018-04-12 04:09:37,843 INFO L226 Difference]: Without dead ends: 1456 [2018-04-12 04:09:37,845 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2618 GetRequests, 2431 SyntacticMatches, 31 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9851 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=4007, Invalid=20799, Unknown=0, NotChecked=0, Total=24806 [2018-04-12 04:09:37,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2018-04-12 04:09:37,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1446. [2018-04-12 04:09:37,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1446 states. [2018-04-12 04:09:37,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 1450 transitions. [2018-04-12 04:09:37,875 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 1450 transitions. Word has length 1274 [2018-04-12 04:09:37,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:09:37,875 INFO L459 AbstractCegarLoop]: Abstraction has 1446 states and 1450 transitions. [2018-04-12 04:09:37,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 88 states. [2018-04-12 04:09:37,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 1450 transitions. [2018-04-12 04:09:37,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1284 [2018-04-12 04:09:37,884 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:09:37,884 INFO L355 BasicCegarLoop]: trace histogram [120, 105, 105, 105, 105, 105, 105, 105, 105, 16, 15, 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, 1, 1] [2018-04-12 04:09:37,884 INFO L408 AbstractCegarLoop]: === Iteration 44 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:09:37,884 INFO L82 PathProgramCache]: Analyzing trace with hash -640706814, now seen corresponding path program 8 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 [2018-04-12 04:09:37,890 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:09:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:09:38,087 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:09:38,794 INFO L134 CoverageAnalysis]: Checked inductivity of 54525 backedges. 0 proven. 1185 refuted. 0 times theorem prover too weak. 53340 trivial. 0 not checked. [2018-04-12 04:09:38,795 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:09:39,910 INFO L134 CoverageAnalysis]: Checked inductivity of 54525 backedges. 0 proven. 1185 refuted. 0 times theorem prover too weak. 53340 trivial. 0 not checked. [2018-04-12 04:09:39,932 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:09:39,933 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 64 [2018-04-12 04:09:39,934 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-04-12 04:09:39,934 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-04-12 04:09:39,934 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1056, Invalid=2976, Unknown=0, NotChecked=0, Total=4032 [2018-04-12 04:09:39,934 INFO L87 Difference]: Start difference. First operand 1446 states and 1450 transitions. Second operand 64 states. [2018-04-12 04:09:41,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:09:41,436 INFO L93 Difference]: Finished difference Result 1656 states and 1692 transitions. [2018-04-12 04:09:41,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2018-04-12 04:09:41,436 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 1283 [2018-04-12 04:09:41,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:09:41,440 INFO L225 Difference]: With dead ends: 1656 [2018-04-12 04:09:41,440 INFO L226 Difference]: Without dead ends: 1636 [2018-04-12 04:09:41,441 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2625 GetRequests, 2503 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3257 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=4867, Invalid=10385, Unknown=0, NotChecked=0, Total=15252 [2018-04-12 04:09:41,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2018-04-12 04:09:41,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1619. [2018-04-12 04:09:41,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1619 states. [2018-04-12 04:09:41,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 1638 transitions. [2018-04-12 04:09:41,479 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 1638 transitions. Word has length 1283 [2018-04-12 04:09:41,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:09:41,479 INFO L459 AbstractCegarLoop]: Abstraction has 1619 states and 1638 transitions. [2018-04-12 04:09:41,479 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-04-12 04:09:41,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 1638 transitions. [2018-04-12 04:09:41,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1421 [2018-04-12 04:09:41,490 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:09:41,490 INFO L355 BasicCegarLoop]: trace histogram [136, 121, 120, 120, 120, 120, 120, 120, 120, 16, 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, 1, 1] [2018-04-12 04:09:41,490 INFO L408 AbstractCegarLoop]: === Iteration 45 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:09:41,491 INFO L82 PathProgramCache]: Analyzing trace with hash 592298737, now seen corresponding path program 27 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 [2018-04-12 04:09:41,497 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:09:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:09:41,721 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:09:43,406 INFO L134 CoverageAnalysis]: Checked inductivity of 70605 backedges. 16035 proven. 1230 refuted. 0 times theorem prover too weak. 53340 trivial. 0 not checked. [2018-04-12 04:09:43,406 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:09:45,271 INFO L134 CoverageAnalysis]: Checked inductivity of 70605 backedges. 16035 proven. 1230 refuted. 0 times theorem prover too weak. 53340 trivial. 0 not checked. [2018-04-12 04:09:45,291 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:09:45,292 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66] total 97 [2018-04-12 04:09:45,293 INFO L442 AbstractCegarLoop]: Interpolant automaton has 97 states [2018-04-12 04:09:45,293 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2018-04-12 04:09:45,293 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1153, Invalid=8159, Unknown=0, NotChecked=0, Total=9312 [2018-04-12 04:09:45,294 INFO L87 Difference]: Start difference. First operand 1619 states and 1638 transitions. Second operand 97 states. [2018-04-12 04:09:48,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:09:48,135 INFO L93 Difference]: Finished difference Result 2117 states and 2156 transitions. [2018-04-12 04:09:48,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2018-04-12 04:09:48,135 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 1420 [2018-04-12 04:09:48,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:09:48,140 INFO L225 Difference]: With dead ends: 2117 [2018-04-12 04:09:48,140 INFO L226 Difference]: Without dead ends: 1775 [2018-04-12 04:09:48,144 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2916 GetRequests, 2711 SyntacticMatches, 33 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8096 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=4749, Invalid=25353, Unknown=0, NotChecked=0, Total=30102 [2018-04-12 04:09:48,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2018-04-12 04:09:48,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1764. [2018-04-12 04:09:48,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1764 states. [2018-04-12 04:09:48,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 1783 transitions. [2018-04-12 04:09:48,186 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 1783 transitions. Word has length 1420 [2018-04-12 04:09:48,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:09:48,187 INFO L459 AbstractCegarLoop]: Abstraction has 1764 states and 1783 transitions. [2018-04-12 04:09:48,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 97 states. [2018-04-12 04:09:48,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 1783 transitions. [2018-04-12 04:09:48,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1568 [2018-04-12 04:09:48,200 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:09:48,200 INFO L355 BasicCegarLoop]: trace histogram [151, 135, 134, 134, 134, 134, 134, 134, 134, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 04:09:48,200 INFO L408 AbstractCegarLoop]: === Iteration 46 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:09:48,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1458321233, now seen corresponding path program 28 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 [2018-04-12 04:09:48,233 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:09:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:09:48,484 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:09:50,320 INFO L134 CoverageAnalysis]: Checked inductivity of 87601 backedges. 32394 proven. 847 refuted. 0 times theorem prover too weak. 54360 trivial. 0 not checked. [2018-04-12 04:09:50,320 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:09:52,378 INFO L134 CoverageAnalysis]: Checked inductivity of 87601 backedges. 32394 proven. 847 refuted. 0 times theorem prover too weak. 54360 trivial. 0 not checked. [2018-04-12 04:09:52,398 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:09:52,399 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64] total 94 [2018-04-12 04:09:52,400 INFO L442 AbstractCegarLoop]: Interpolant automaton has 94 states [2018-04-12 04:09:52,400 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2018-04-12 04:09:52,400 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1116, Invalid=7626, Unknown=0, NotChecked=0, Total=8742 [2018-04-12 04:09:52,401 INFO L87 Difference]: Start difference. First operand 1764 states and 1783 transitions. Second operand 94 states. [2018-04-12 04:09:54,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:09:54,165 INFO L93 Difference]: Finished difference Result 2126 states and 2176 transitions. [2018-04-12 04:09:54,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2018-04-12 04:09:54,166 INFO L78 Accepts]: Start accepts. Automaton has 94 states. Word has length 1567 [2018-04-12 04:09:54,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:09:54,170 INFO L225 Difference]: With dead ends: 2126 [2018-04-12 04:09:54,170 INFO L226 Difference]: Without dead ends: 1778 [2018-04-12 04:09:54,174 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3209 GetRequests, 3009 SyntacticMatches, 33 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11342 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=4570, Invalid=23822, Unknown=0, NotChecked=0, Total=28392 [2018-04-12 04:09:54,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2018-04-12 04:09:54,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 1764. [2018-04-12 04:09:54,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1764 states. [2018-04-12 04:09:54,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 1781 transitions. [2018-04-12 04:09:54,230 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 1781 transitions. Word has length 1567 [2018-04-12 04:09:54,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:09:54,230 INFO L459 AbstractCegarLoop]: Abstraction has 1764 states and 1781 transitions. [2018-04-12 04:09:54,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 94 states. [2018-04-12 04:09:54,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 1781 transitions. [2018-04-12 04:09:54,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1577 [2018-04-12 04:09:54,242 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:09:54,243 INFO L355 BasicCegarLoop]: trace histogram [152, 136, 135, 135, 135, 135, 135, 135, 135, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 04:09:54,243 INFO L408 AbstractCegarLoop]: === Iteration 47 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:09:54,243 INFO L82 PathProgramCache]: Analyzing trace with hash -669412809, 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 [2018-04-12 04:09:54,248 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:09:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:09:54,494 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:09:55,493 INFO L134 CoverageAnalysis]: Checked inductivity of 88842 backedges. 17072 proven. 990 refuted. 0 times theorem prover too weak. 70780 trivial. 0 not checked. [2018-04-12 04:09:55,493 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:09:57,347 INFO L134 CoverageAnalysis]: Checked inductivity of 88842 backedges. 17072 proven. 990 refuted. 0 times theorem prover too weak. 70780 trivial. 0 not checked. [2018-04-12 04:09:57,369 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:09:57,370 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 63 [2018-04-12 04:09:57,371 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-04-12 04:09:57,371 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-04-12 04:09:57,371 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=606, Invalid=3426, Unknown=0, NotChecked=0, Total=4032 [2018-04-12 04:09:57,372 INFO L87 Difference]: Start difference. First operand 1764 states and 1781 transitions. Second operand 64 states. [2018-04-12 04:10:02,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:10:02,108 INFO L93 Difference]: Finished difference Result 1977 states and 2249 transitions. [2018-04-12 04:10:02,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2018-04-12 04:10:02,108 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 1576 [2018-04-12 04:10:02,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:10:02,117 INFO L225 Difference]: With dead ends: 1977 [2018-04-12 04:10:02,117 INFO L226 Difference]: Without dead ends: 1976 [2018-04-12 04:10:02,119 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3227 GetRequests, 3105 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2010 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=3518, Invalid=11734, Unknown=0, NotChecked=0, Total=15252 [2018-04-12 04:10:02,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1976 states. [2018-04-12 04:10:02,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1976 to 1907. [2018-04-12 04:10:02,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1907 states. [2018-04-12 04:10:02,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 1955 transitions. [2018-04-12 04:10:02,183 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 1955 transitions. Word has length 1576 [2018-04-12 04:10:02,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:10:02,184 INFO L459 AbstractCegarLoop]: Abstraction has 1907 states and 1955 transitions. [2018-04-12 04:10:02,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-04-12 04:10:02,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 1955 transitions. [2018-04-12 04:10:02,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1578 [2018-04-12 04:10:02,197 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:10:02,198 INFO L355 BasicCegarLoop]: trace histogram [152, 136, 136, 135, 135, 135, 135, 135, 135, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 04:10:02,198 INFO L408 AbstractCegarLoop]: === Iteration 48 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:10:02,198 INFO L82 PathProgramCache]: Analyzing trace with hash 723039634, 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 [2018-04-12 04:10:02,204 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:10:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:10:02,473 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:10:02,476 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 [2018-04-12 04:10:02,476 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 04:10:02,485 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 04:10:02,485 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-12 04:10:06,856 INFO L134 CoverageAnalysis]: Checked inductivity of 88977 backedges. 17272 proven. 1037 refuted. 0 times theorem prover too weak. 70668 trivial. 0 not checked. [2018-04-12 04:10:06,856 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:10:09,518 INFO L134 CoverageAnalysis]: Checked inductivity of 88977 backedges. 17272 proven. 1037 refuted. 0 times theorem prover too weak. 70668 trivial. 0 not checked. [2018-04-12 04:10:09,541 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:10:09,541 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 36] total 72 [2018-04-12 04:10:09,542 INFO L442 AbstractCegarLoop]: Interpolant automaton has 73 states [2018-04-12 04:10:09,543 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2018-04-12 04:10:09,543 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=725, Invalid=4531, Unknown=0, NotChecked=0, Total=5256 [2018-04-12 04:10:09,543 INFO L87 Difference]: Start difference. First operand 1907 states and 1955 transitions. Second operand 73 states. [2018-04-12 04:10:12,877 WARN L151 SmtUtils]: Spent 132ms on a formula simplification. DAG size of input: 124 DAG size of output 27 [2018-04-12 04:10:13,319 WARN L151 SmtUtils]: Spent 123ms on a formula simplification. DAG size of input: 120 DAG size of output 26 [2018-04-12 04:10:13,634 WARN L151 SmtUtils]: Spent 117ms on a formula simplification. DAG size of input: 117 DAG size of output 27 [2018-04-12 04:10:13,956 WARN L151 SmtUtils]: Spent 100ms on a formula simplification. DAG size of input: 113 DAG size of output 26 [2018-04-12 04:10:18,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:10:18,009 INFO L93 Difference]: Finished difference Result 1960 states and 2232 transitions. [2018-04-12 04:10:18,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-04-12 04:10:18,009 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 1577 [2018-04-12 04:10:18,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:10:18,016 INFO L225 Difference]: With dead ends: 1960 [2018-04-12 04:10:18,016 INFO L226 Difference]: Without dead ends: 1959 [2018-04-12 04:10:18,018 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3218 GetRequests, 3052 SyntacticMatches, 31 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3629 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=4107, Invalid=14525, Unknown=0, NotChecked=0, Total=18632 [2018-04-12 04:10:18,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1959 states. [2018-04-12 04:10:18,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1959 to 1908. [2018-04-12 04:10:18,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1908 states. [2018-04-12 04:10:18,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1908 states to 1908 states and 1941 transitions. [2018-04-12 04:10:18,099 INFO L78 Accepts]: Start accepts. Automaton has 1908 states and 1941 transitions. Word has length 1577 [2018-04-12 04:10:18,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:10:18,101 INFO L459 AbstractCegarLoop]: Abstraction has 1908 states and 1941 transitions. [2018-04-12 04:10:18,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 73 states. [2018-04-12 04:10:18,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1908 states and 1941 transitions. [2018-04-12 04:10:18,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1721 [2018-04-12 04:10:18,121 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:10:18,122 INFO L355 BasicCegarLoop]: trace histogram [168, 152, 151, 151, 151, 151, 151, 151, 151, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 04:10:18,122 INFO L408 AbstractCegarLoop]: === Iteration 49 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:10:18,123 INFO L82 PathProgramCache]: Analyzing trace with hash -577122249, now seen corresponding path program 30 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-12 04:10:18,129 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:10:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:10:18,440 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:10:20,527 INFO L134 CoverageAnalysis]: Checked inductivity of 109922 backedges. 38262 proven. 1400 refuted. 0 times theorem prover too weak. 70260 trivial. 0 not checked. [2018-04-12 04:10:20,527 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:10:22,914 INFO L134 CoverageAnalysis]: Checked inductivity of 109922 backedges. 38262 proven. 1400 refuted. 0 times theorem prover too weak. 70260 trivial. 0 not checked. [2018-04-12 04:10:22,936 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:10:22,937 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70] total 103 [2018-04-12 04:10:22,938 INFO L442 AbstractCegarLoop]: Interpolant automaton has 103 states [2018-04-12 04:10:22,938 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2018-04-12 04:10:22,939 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1293, Invalid=9213, Unknown=0, NotChecked=0, Total=10506 [2018-04-12 04:10:22,939 INFO L87 Difference]: Start difference. First operand 1908 states and 1941 transitions. Second operand 103 states. [2018-04-12 04:10:26,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:10:26,143 INFO L93 Difference]: Finished difference Result 2548 states and 2615 transitions. [2018-04-12 04:10:26,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2018-04-12 04:10:26,143 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 1720 [2018-04-12 04:10:26,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:10:26,147 INFO L225 Difference]: With dead ends: 2548 [2018-04-12 04:10:26,148 INFO L226 Difference]: Without dead ends: 2073 [2018-04-12 04:10:26,153 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3521 GetRequests, 3303 SyntacticMatches, 35 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9196 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=5352, Invalid=28688, Unknown=0, NotChecked=0, Total=34040 [2018-04-12 04:10:26,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2018-04-12 04:10:26,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 2062. [2018-04-12 04:10:26,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2062 states. [2018-04-12 04:10:26,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2062 states to 2062 states and 2095 transitions. [2018-04-12 04:10:26,214 INFO L78 Accepts]: Start accepts. Automaton has 2062 states and 2095 transitions. Word has length 1720 [2018-04-12 04:10:26,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:10:26,215 INFO L459 AbstractCegarLoop]: Abstraction has 2062 states and 2095 transitions. [2018-04-12 04:10:26,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 103 states. [2018-04-12 04:10:26,215 INFO L276 IsEmpty]: Start isEmpty. Operand 2062 states and 2095 transitions. [2018-04-12 04:10:26,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1877 [2018-04-12 04:10:26,233 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:10:26,234 INFO L355 BasicCegarLoop]: trace histogram [184, 167, 166, 166, 166, 166, 166, 166, 166, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 04:10:26,234 INFO L408 AbstractCegarLoop]: === Iteration 50 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:10:26,235 INFO L82 PathProgramCache]: Analyzing trace with hash -640971139, now seen corresponding path program 31 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-12 04:10:26,242 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:10:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:10:26,571 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:10:28,830 INFO L134 CoverageAnalysis]: Checked inductivity of 132457 backedges. 57872 proven. 975 refuted. 0 times theorem prover too weak. 73610 trivial. 0 not checked. [2018-04-12 04:10:28,830 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:10:31,437 INFO L134 CoverageAnalysis]: Checked inductivity of 132457 backedges. 57872 proven. 975 refuted. 0 times theorem prover too weak. 73610 trivial. 0 not checked. [2018-04-12 04:10:31,461 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:10:31,487 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 68] total 100 [2018-04-12 04:10:31,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 100 states [2018-04-12 04:10:31,489 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2018-04-12 04:10:31,489 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1254, Invalid=8646, Unknown=0, NotChecked=0, Total=9900 [2018-04-12 04:10:31,490 INFO L87 Difference]: Start difference. First operand 2062 states and 2095 transitions. Second operand 100 states. [2018-04-12 04:10:33,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:10:33,503 INFO L93 Difference]: Finished difference Result 2553 states and 2630 transitions. [2018-04-12 04:10:33,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2018-04-12 04:10:33,503 INFO L78 Accepts]: Start accepts. Automaton has 100 states. Word has length 1876 [2018-04-12 04:10:33,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:10:33,508 INFO L225 Difference]: With dead ends: 2553 [2018-04-12 04:10:33,508 INFO L226 Difference]: Without dead ends: 2072 [2018-04-12 04:10:33,513 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3832 GetRequests, 3619 SyntacticMatches, 35 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12938 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=5170, Invalid=27050, Unknown=0, NotChecked=0, Total=32220 [2018-04-12 04:10:33,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2072 states. [2018-04-12 04:10:33,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2072 to 2062. [2018-04-12 04:10:33,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2062 states. [2018-04-12 04:10:33,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2062 states to 2062 states and 2093 transitions. [2018-04-12 04:10:33,561 INFO L78 Accepts]: Start accepts. Automaton has 2062 states and 2093 transitions. Word has length 1876 [2018-04-12 04:10:33,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:10:33,562 INFO L459 AbstractCegarLoop]: Abstraction has 2062 states and 2093 transitions. [2018-04-12 04:10:33,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 100 states. [2018-04-12 04:10:33,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2062 states and 2093 transitions. [2018-04-12 04:10:33,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1886 [2018-04-12 04:10:33,580 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:10:33,581 INFO L355 BasicCegarLoop]: trace histogram [185, 168, 167, 167, 167, 167, 167, 167, 167, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 04:10:33,581 INFO L408 AbstractCegarLoop]: === Iteration 51 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:10:33,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1994896523, now seen corresponding path program 32 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-12 04:10:33,588 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:10:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:10:33,884 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:10:36,335 INFO L134 CoverageAnalysis]: Checked inductivity of 133988 backedges. 42970 proven. 1581 refuted. 0 times theorem prover too weak. 89437 trivial. 0 not checked. [2018-04-12 04:10:36,335 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:10:38,971 INFO L134 CoverageAnalysis]: Checked inductivity of 133988 backedges. 42970 proven. 1581 refuted. 0 times theorem prover too weak. 89437 trivial. 0 not checked. [2018-04-12 04:10:38,994 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:10:38,994 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 74] total 109 [2018-04-12 04:10:38,995 INFO L442 AbstractCegarLoop]: Interpolant automaton has 109 states [2018-04-12 04:10:38,996 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2018-04-12 04:10:38,996 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1441, Invalid=10331, Unknown=0, NotChecked=0, Total=11772 [2018-04-12 04:10:38,996 INFO L87 Difference]: Start difference. First operand 2062 states and 2093 transitions. Second operand 109 states. [2018-04-12 04:10:42,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:10:42,547 INFO L93 Difference]: Finished difference Result 2700 states and 2763 transitions. [2018-04-12 04:10:42,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2018-04-12 04:10:42,547 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 1885 [2018-04-12 04:10:42,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:10:42,552 INFO L225 Difference]: With dead ends: 2700 [2018-04-12 04:10:42,552 INFO L226 Difference]: Without dead ends: 2236 [2018-04-12 04:10:42,558 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3856 GetRequests, 3625 SyntacticMatches, 37 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10366 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=5991, Invalid=32229, Unknown=0, NotChecked=0, Total=38220 [2018-04-12 04:10:42,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2018-04-12 04:10:42,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 2225. [2018-04-12 04:10:42,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2225 states. [2018-04-12 04:10:42,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2225 states to 2225 states and 2256 transitions. [2018-04-12 04:10:42,625 INFO L78 Accepts]: Start accepts. Automaton has 2225 states and 2256 transitions. Word has length 1885 [2018-04-12 04:10:42,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:10:42,626 INFO L459 AbstractCegarLoop]: Abstraction has 2225 states and 2256 transitions. [2018-04-12 04:10:42,626 INFO L460 AbstractCegarLoop]: Interpolant automaton has 109 states. [2018-04-12 04:10:42,627 INFO L276 IsEmpty]: Start isEmpty. Operand 2225 states and 2256 transitions. [2018-04-12 04:10:42,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2051 [2018-04-12 04:10:42,660 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:10:42,661 INFO L355 BasicCegarLoop]: trace histogram [202, 184, 183, 183, 183, 183, 183, 183, 183, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 04:10:42,661 INFO L408 AbstractCegarLoop]: === Iteration 52 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:10:42,661 INFO L82 PathProgramCache]: Analyzing trace with hash -2128284489, now seen corresponding path program 33 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-12 04:10:42,674 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:10:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:10:43,018 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:10:45,594 INFO L134 CoverageAnalysis]: Checked inductivity of 160443 backedges. 66415 proven. 1112 refuted. 0 times theorem prover too weak. 92916 trivial. 0 not checked. [2018-04-12 04:10:45,594 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:10:48,461 INFO L134 CoverageAnalysis]: Checked inductivity of 160443 backedges. 66415 proven. 1112 refuted. 0 times theorem prover too weak. 92916 trivial. 0 not checked. [2018-04-12 04:10:48,483 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:10:48,483 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [72, 72] total 106 [2018-04-12 04:10:48,484 INFO L442 AbstractCegarLoop]: Interpolant automaton has 106 states [2018-04-12 04:10:48,485 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2018-04-12 04:10:48,485 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1400, Invalid=9730, Unknown=0, NotChecked=0, Total=11130 [2018-04-12 04:10:48,485 INFO L87 Difference]: Start difference. First operand 2225 states and 2256 transitions. Second operand 106 states. [2018-04-12 04:10:50,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:10:50,704 INFO L93 Difference]: Finished difference Result 2705 states and 2777 transitions. [2018-04-12 04:10:50,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2018-04-12 04:10:50,705 INFO L78 Accepts]: Start accepts. Automaton has 106 states. Word has length 2050 [2018-04-12 04:10:50,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:10:50,709 INFO L225 Difference]: With dead ends: 2705 [2018-04-12 04:10:50,709 INFO L226 Difference]: Without dead ends: 2235 [2018-04-12 04:10:50,714 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4185 GetRequests, 3959 SyntacticMatches, 37 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14639 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=5807, Invalid=30483, Unknown=0, NotChecked=0, Total=36290 [2018-04-12 04:10:50,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2235 states. [2018-04-12 04:10:50,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2235 to 2225. [2018-04-12 04:10:50,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2225 states. [2018-04-12 04:10:50,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2225 states to 2225 states and 2254 transitions. [2018-04-12 04:10:50,763 INFO L78 Accepts]: Start accepts. Automaton has 2225 states and 2254 transitions. Word has length 2050 [2018-04-12 04:10:50,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:10:50,764 INFO L459 AbstractCegarLoop]: Abstraction has 2225 states and 2254 transitions. [2018-04-12 04:10:50,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 106 states. [2018-04-12 04:10:50,764 INFO L276 IsEmpty]: Start isEmpty. Operand 2225 states and 2254 transitions. [2018-04-12 04:10:50,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2060 [2018-04-12 04:10:50,784 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:10:50,784 INFO L355 BasicCegarLoop]: trace histogram [203, 185, 184, 184, 184, 184, 184, 184, 184, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 04:10:50,784 INFO L408 AbstractCegarLoop]: === Iteration 53 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:10:50,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1620791407, now seen corresponding path program 34 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-12 04:10:50,792 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:10:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:10:51,116 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:10:53,847 INFO L134 CoverageAnalysis]: Checked inductivity of 162129 backedges. 47951 proven. 1773 refuted. 0 times theorem prover too weak. 112405 trivial. 0 not checked. [2018-04-12 04:10:53,847 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:10:56,876 INFO L134 CoverageAnalysis]: Checked inductivity of 162129 backedges. 47951 proven. 1773 refuted. 0 times theorem prover too weak. 112405 trivial. 0 not checked. [2018-04-12 04:10:56,899 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:10:56,900 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 78] total 115 [2018-04-12 04:10:56,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 115 states [2018-04-12 04:10:56,901 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2018-04-12 04:10:56,902 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1597, Invalid=11513, Unknown=0, NotChecked=0, Total=13110 [2018-04-12 04:10:56,902 INFO L87 Difference]: Start difference. First operand 2225 states and 2254 transitions. Second operand 115 states. [2018-04-12 04:11:00,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:11:00,802 INFO L93 Difference]: Finished difference Result 2861 states and 2920 transitions. [2018-04-12 04:11:00,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2018-04-12 04:11:00,844 INFO L78 Accepts]: Start accepts. Automaton has 115 states. Word has length 2059 [2018-04-12 04:11:00,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:11:00,849 INFO L225 Difference]: With dead ends: 2861 [2018-04-12 04:11:00,849 INFO L226 Difference]: Without dead ends: 2408 [2018-04-12 04:11:00,855 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4209 GetRequests, 3965 SyntacticMatches, 39 SemanticMatches, 205 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11606 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=6666, Invalid=35976, Unknown=0, NotChecked=0, Total=42642 [2018-04-12 04:11:00,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2408 states. [2018-04-12 04:11:00,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2408 to 2397. [2018-04-12 04:11:00,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2397 states. [2018-04-12 04:11:00,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2397 states to 2397 states and 2426 transitions. [2018-04-12 04:11:00,940 INFO L78 Accepts]: Start accepts. Automaton has 2397 states and 2426 transitions. Word has length 2059 [2018-04-12 04:11:00,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:11:00,941 INFO L459 AbstractCegarLoop]: Abstraction has 2397 states and 2426 transitions. [2018-04-12 04:11:00,941 INFO L460 AbstractCegarLoop]: Interpolant automaton has 115 states. [2018-04-12 04:11:00,941 INFO L276 IsEmpty]: Start isEmpty. Operand 2397 states and 2426 transitions. [2018-04-12 04:11:00,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2234 [2018-04-12 04:11:00,980 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:11:00,981 INFO L355 BasicCegarLoop]: trace histogram [221, 202, 201, 201, 201, 201, 201, 201, 201, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 04:11:00,981 INFO L408 AbstractCegarLoop]: === Iteration 54 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:11:00,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1087311849, now seen corresponding path program 35 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-12 04:11:00,992 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:11:01,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:11:01,374 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:11:04,379 INFO L134 CoverageAnalysis]: Checked inductivity of 192960 backedges. 75698 proven. 1258 refuted. 0 times theorem prover too weak. 116004 trivial. 0 not checked. [2018-04-12 04:11:04,380 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:11:07,752 INFO L134 CoverageAnalysis]: Checked inductivity of 192960 backedges. 75698 proven. 1258 refuted. 0 times theorem prover too weak. 116004 trivial. 0 not checked. [2018-04-12 04:11:07,775 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:11:07,775 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 76] total 112 [2018-04-12 04:11:07,777 INFO L442 AbstractCegarLoop]: Interpolant automaton has 112 states [2018-04-12 04:11:07,777 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2018-04-12 04:11:07,778 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1554, Invalid=10878, Unknown=0, NotChecked=0, Total=12432 [2018-04-12 04:11:07,778 INFO L87 Difference]: Start difference. First operand 2397 states and 2426 transitions. Second operand 112 states. [2018-04-12 04:11:10,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:11:10,192 INFO L93 Difference]: Finished difference Result 2866 states and 2933 transitions. [2018-04-12 04:11:10,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2018-04-12 04:11:10,193 INFO L78 Accepts]: Start accepts. Automaton has 112 states. Word has length 2233 [2018-04-12 04:11:10,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:11:10,198 INFO L225 Difference]: With dead ends: 2866 [2018-04-12 04:11:10,198 INFO L226 Difference]: Without dead ends: 2407 [2018-04-12 04:11:10,203 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4556 GetRequests, 4317 SyntacticMatches, 39 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16445 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=6481, Invalid=34121, Unknown=0, NotChecked=0, Total=40602 [2018-04-12 04:11:10,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2407 states. [2018-04-12 04:11:10,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2407 to 2397. [2018-04-12 04:11:10,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2397 states. [2018-04-12 04:11:10,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2397 states to 2397 states and 2424 transitions. [2018-04-12 04:11:10,289 INFO L78 Accepts]: Start accepts. Automaton has 2397 states and 2424 transitions. Word has length 2233 [2018-04-12 04:11:10,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:11:10,291 INFO L459 AbstractCegarLoop]: Abstraction has 2397 states and 2424 transitions. [2018-04-12 04:11:10,291 INFO L460 AbstractCegarLoop]: Interpolant automaton has 112 states. [2018-04-12 04:11:10,291 INFO L276 IsEmpty]: Start isEmpty. Operand 2397 states and 2424 transitions. [2018-04-12 04:11:10,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2243 [2018-04-12 04:11:10,322 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:11:10,323 INFO L355 BasicCegarLoop]: trace histogram [222, 203, 202, 202, 202, 202, 202, 202, 202, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 04:11:10,323 INFO L408 AbstractCegarLoop]: === Iteration 55 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:11:10,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1691516879, now seen corresponding path program 36 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-12 04:11:10,330 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:11:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:11:10,685 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:11:13,856 INFO L134 CoverageAnalysis]: Checked inductivity of 194810 backedges. 53205 proven. 1976 refuted. 0 times theorem prover too weak. 139629 trivial. 0 not checked. [2018-04-12 04:11:13,857 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:11:17,278 INFO L134 CoverageAnalysis]: Checked inductivity of 194810 backedges. 53205 proven. 1976 refuted. 0 times theorem prover too weak. 139629 trivial. 0 not checked. [2018-04-12 04:11:17,301 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:11:17,302 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 82] total 121 [2018-04-12 04:11:17,303 INFO L442 AbstractCegarLoop]: Interpolant automaton has 121 states [2018-04-12 04:11:17,304 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2018-04-12 04:11:17,304 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1761, Invalid=12759, Unknown=0, NotChecked=0, Total=14520 [2018-04-12 04:11:17,304 INFO L87 Difference]: Start difference. First operand 2397 states and 2424 transitions. Second operand 121 states. [2018-04-12 04:11:21,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:11:21,962 INFO L93 Difference]: Finished difference Result 3031 states and 3086 transitions. [2018-04-12 04:11:21,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2018-04-12 04:11:21,962 INFO L78 Accepts]: Start accepts. Automaton has 121 states. Word has length 2242 [2018-04-12 04:11:21,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:11:21,968 INFO L225 Difference]: With dead ends: 3031 [2018-04-12 04:11:21,968 INFO L226 Difference]: Without dead ends: 2589 [2018-04-12 04:11:21,974 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4580 GetRequests, 4323 SyntacticMatches, 41 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12916 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=7377, Invalid=39929, Unknown=0, NotChecked=0, Total=47306 [2018-04-12 04:11:21,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2589 states. [2018-04-12 04:11:22,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2589 to 2578. [2018-04-12 04:11:22,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2578 states. [2018-04-12 04:11:22,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 2605 transitions. [2018-04-12 04:11:22,033 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 2605 transitions. Word has length 2242 [2018-04-12 04:11:22,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:11:22,034 INFO L459 AbstractCegarLoop]: Abstraction has 2578 states and 2605 transitions. [2018-04-12 04:11:22,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 121 states. [2018-04-12 04:11:22,034 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 2605 transitions. [2018-04-12 04:11:22,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2426 [2018-04-12 04:11:22,060 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:11:22,061 INFO L355 BasicCegarLoop]: trace histogram [241, 221, 220, 220, 220, 220, 220, 220, 220, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 04:11:22,061 INFO L408 AbstractCegarLoop]: === Iteration 56 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:11:22,061 INFO L82 PathProgramCache]: Analyzing trace with hash -2137490543, now seen corresponding path program 37 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-12 04:11:22,084 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:11:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:11:22,454 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:11:25,768 INFO L134 CoverageAnalysis]: Checked inductivity of 230500 backedges. 85748 proven. 1413 refuted. 0 times theorem prover too weak. 143339 trivial. 0 not checked. [2018-04-12 04:11:25,769 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:11:29,562 INFO L134 CoverageAnalysis]: Checked inductivity of 230500 backedges. 85748 proven. 1413 refuted. 0 times theorem prover too weak. 143339 trivial. 0 not checked. [2018-04-12 04:11:29,596 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:11:29,597 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 80] total 118 [2018-04-12 04:11:29,599 INFO L442 AbstractCegarLoop]: Interpolant automaton has 118 states [2018-04-12 04:11:29,600 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2018-04-12 04:11:29,601 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1716, Invalid=12090, Unknown=0, NotChecked=0, Total=13806 [2018-04-12 04:11:29,601 INFO L87 Difference]: Start difference. First operand 2578 states and 2605 transitions. Second operand 118 states. [2018-04-12 04:11:32,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:11:32,411 INFO L93 Difference]: Finished difference Result 3036 states and 3098 transitions. [2018-04-12 04:11:32,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2018-04-12 04:11:32,467 INFO L78 Accepts]: Start accepts. Automaton has 118 states. Word has length 2425 [2018-04-12 04:11:32,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:11:32,471 INFO L225 Difference]: With dead ends: 3036 [2018-04-12 04:11:32,471 INFO L226 Difference]: Without dead ends: 2588 [2018-04-12 04:11:32,477 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4945 GetRequests, 4693 SyntacticMatches, 41 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18356 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=7192, Invalid=37964, Unknown=0, NotChecked=0, Total=45156 [2018-04-12 04:11:32,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states. [2018-04-12 04:11:32,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 2578. [2018-04-12 04:11:32,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2578 states. [2018-04-12 04:11:32,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 2603 transitions. [2018-04-12 04:11:32,532 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 2603 transitions. Word has length 2425 [2018-04-12 04:11:32,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:11:32,533 INFO L459 AbstractCegarLoop]: Abstraction has 2578 states and 2603 transitions. [2018-04-12 04:11:32,533 INFO L460 AbstractCegarLoop]: Interpolant automaton has 118 states. [2018-04-12 04:11:32,533 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 2603 transitions. [2018-04-12 04:11:32,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2435 [2018-04-12 04:11:32,560 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:11:32,561 INFO L355 BasicCegarLoop]: trace histogram [242, 222, 221, 221, 221, 221, 221, 221, 221, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 04:11:32,561 INFO L408 AbstractCegarLoop]: === Iteration 57 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:11:32,562 INFO L82 PathProgramCache]: Analyzing trace with hash -921551369, now seen corresponding path program 38 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-12 04:11:32,588 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:11:32,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:11:32,993 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:11:36,587 INFO L134 CoverageAnalysis]: Checked inductivity of 232523 backedges. 58732 proven. 2190 refuted. 0 times theorem prover too weak. 171601 trivial. 0 not checked. [2018-04-12 04:11:36,588 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:11:40,478 INFO L134 CoverageAnalysis]: Checked inductivity of 232523 backedges. 58732 proven. 2190 refuted. 0 times theorem prover too weak. 171601 trivial. 0 not checked. [2018-04-12 04:11:40,501 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:11:40,502 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [86, 86] total 127 [2018-04-12 04:11:40,503 INFO L442 AbstractCegarLoop]: Interpolant automaton has 127 states [2018-04-12 04:11:40,504 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2018-04-12 04:11:40,504 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1933, Invalid=14069, Unknown=0, NotChecked=0, Total=16002 [2018-04-12 04:11:40,504 INFO L87 Difference]: Start difference. First operand 2578 states and 2603 transitions. Second operand 127 states. [2018-04-12 04:11:45,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 04:11:45,160 INFO L93 Difference]: Finished difference Result 3210 states and 3261 transitions. [2018-04-12 04:11:45,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2018-04-12 04:11:45,160 INFO L78 Accepts]: Start accepts. Automaton has 127 states. Word has length 2434 [2018-04-12 04:11:45,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 04:11:45,164 INFO L225 Difference]: With dead ends: 3210 [2018-04-12 04:11:45,164 INFO L226 Difference]: Without dead ends: 2779 [2018-04-12 04:11:45,169 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4969 GetRequests, 4699 SyntacticMatches, 43 SemanticMatches, 227 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14296 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=8124, Invalid=44088, Unknown=0, NotChecked=0, Total=52212 [2018-04-12 04:11:45,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2018-04-12 04:11:45,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 2768. [2018-04-12 04:11:45,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2768 states. [2018-04-12 04:11:45,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2768 states to 2768 states and 2793 transitions. [2018-04-12 04:11:45,229 INFO L78 Accepts]: Start accepts. Automaton has 2768 states and 2793 transitions. Word has length 2434 [2018-04-12 04:11:45,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 04:11:45,230 INFO L459 AbstractCegarLoop]: Abstraction has 2768 states and 2793 transitions. [2018-04-12 04:11:45,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 127 states. [2018-04-12 04:11:45,231 INFO L276 IsEmpty]: Start isEmpty. Operand 2768 states and 2793 transitions. [2018-04-12 04:11:45,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2627 [2018-04-12 04:11:45,263 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 04:11:45,264 INFO L355 BasicCegarLoop]: trace histogram [262, 241, 240, 240, 240, 240, 240, 240, 240, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 04:11:45,264 INFO L408 AbstractCegarLoop]: === Iteration 58 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-04-12 04:11:45,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1954769853, now seen corresponding path program 39 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-12 04:11:45,270 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-12 04:11:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 04:11:45,682 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 04:11:49,578 INFO L134 CoverageAnalysis]: Checked inductivity of 273582 backedges. 96592 proven. 1577 refuted. 0 times theorem prover too weak. 175413 trivial. 0 not checked. [2018-04-12 04:11:49,578 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-12 04:11:53,936 INFO L134 CoverageAnalysis]: Checked inductivity of 273582 backedges. 96592 proven. 1577 refuted. 0 times theorem prover too weak. 175413 trivial. 0 not checked. [2018-04-12 04:11:53,959 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 04:11:53,960 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [84, 84] total 124 [2018-04-12 04:11:53,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 124 states [2018-04-12 04:11:53,962 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2018-04-12 04:11:53,962 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1886, Invalid=13366, Unknown=0, NotChecked=0, Total=15252 [2018-04-12 04:11:53,963 INFO L87 Difference]: Start difference. First operand 2768 states and 2793 transitions. Second operand 124 states. Received shutdown request... [2018-04-12 04:11:56,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2018-04-12 04:11:56,565 WARN L519 AbstractCegarLoop]: Verification canceled [2018-04-12 04:11:56,568 WARN L197 ceAbstractionStarter]: Timeout [2018-04-12 04:11:56,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.04 04:11:56 BasicIcfg [2018-04-12 04:11:56,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-12 04:11:56,569 INFO L168 Benchmark]: Toolchain (without parser) took 222849.42 ms. Allocated memory was 305.7 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 245.7 MB in the beginning and 1.1 GB in the end (delta: -878.1 MB). Peak memory consumption was 1.1 GB. Max. memory is 5.3 GB. [2018-04-12 04:11:56,570 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 305.7 MB. Free memory is still 267.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-12 04:11:56,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.13 ms. Allocated memory is still 305.7 MB. Free memory was 245.7 MB in the beginning and 235.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-04-12 04:11:56,570 INFO L168 Benchmark]: Boogie Preprocessor took 36.90 ms. Allocated memory is still 305.7 MB. Free memory was 235.6 MB in the beginning and 234.6 MB in the end (delta: 996.2 kB). Peak memory consumption was 996.2 kB. Max. memory is 5.3 GB. [2018-04-12 04:11:56,570 INFO L168 Benchmark]: RCFGBuilder took 359.97 ms. Allocated memory was 305.7 MB in the beginning and 461.4 MB in the end (delta: 155.7 MB). Free memory was 234.6 MB in the beginning and 427.4 MB in the end (delta: -192.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 5.3 GB. [2018-04-12 04:11:56,571 INFO L168 Benchmark]: IcfgTransformer took 3591.57 ms. Allocated memory was 461.4 MB in the beginning and 519.6 MB in the end (delta: 58.2 MB). Free memory was 427.4 MB in the beginning and 355.8 MB in the end (delta: 71.6 MB). Peak memory consumption was 129.8 MB. Max. memory is 5.3 GB. [2018-04-12 04:11:56,571 INFO L168 Benchmark]: TraceAbstraction took 218629.46 ms. Allocated memory was 519.6 MB in the beginning and 2.3 GB in the end (delta: 1.8 GB). Free memory was 355.8 MB in the beginning and 1.1 GB in the end (delta: -768.0 MB). Peak memory consumption was 1.0 GB. Max. memory is 5.3 GB. [2018-04-12 04:11:56,573 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 305.7 MB. Free memory is still 267.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 226.13 ms. Allocated memory is still 305.7 MB. Free memory was 245.7 MB in the beginning and 235.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 36.90 ms. Allocated memory is still 305.7 MB. Free memory was 235.6 MB in the beginning and 234.6 MB in the end (delta: 996.2 kB). Peak memory consumption was 996.2 kB. Max. memory is 5.3 GB. * RCFGBuilder took 359.97 ms. Allocated memory was 305.7 MB in the beginning and 461.4 MB in the end (delta: 155.7 MB). Free memory was 234.6 MB in the beginning and 427.4 MB in the end (delta: -192.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 5.3 GB. * IcfgTransformer took 3591.57 ms. Allocated memory was 461.4 MB in the beginning and 519.6 MB in the end (delta: 58.2 MB). Free memory was 427.4 MB in the beginning and 355.8 MB in the end (delta: 71.6 MB). Peak memory consumption was 129.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 218629.46 ms. Allocated memory was 519.6 MB in the beginning and 2.3 GB in the end (delta: 1.8 GB). Free memory was 355.8 MB in the beginning and 1.1 GB in the end (delta: -768.0 MB). Peak memory consumption was 1.0 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 63 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 426 LocStat_NO_SUPPORTING_DISEQUALITIES : 114 LocStat_NO_DISJUNCTIONS : -126 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 77 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 58 TransStat_NO_SUPPORTING_DISEQUALITIES : 7 TransStat_NO_DISJUNCTIONS : 78 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 821.13 RENAME_VARIABLES(MILLISECONDS) : 132.62 UNFREEZE(MILLISECONDS) : 0.00 CONJOIN(MILLISECONDS) : 813.13 PROJECTAWAY(MILLISECONDS) : 676.39 ADD_WEAK_EQUALITY(MILLISECONDS) : 7.52 DISJOIN(MILLISECONDS) : 40.93 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 145.91 ADD_EQUALITY(MILLISECONDS) : 11.34 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.00 ADD_DISEQUALITY(MILLISECONDS) : 0.22 #CONJOIN_DISJUNCTIVE : 206 #RENAME_VARIABLES : 432 #UNFREEZE : 0 #CONJOIN : 266 #PROJECTAWAY : 312 #ADD_WEAK_EQUALITY : 7 #DISJOIN : 35 #RENAME_VARIABLES_DISJUNCTIVE : 428 #ADD_EQUALITY : 58 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 4 - StatisticsResult: WeqCcManagerStatistics FREEZE(MILLISECONDS) : 1788.47 ADDNODE(MILLISECONDS) : 0.00 MEET(MILLISECONDS) : 807.76 FILTERREDUNDANT(MILLISECONDS) : 0.00 REPORTWEQ(MILLISECONDS) : 7.32 JOIN(MILLISECONDS) : 38.05 RENAMEVARS(MILLISECONDS) : 125.81 FLATTENLABELS(MILLISECONDS) : 0.00 COPY(MILLISECONDS) : 0.00 ISSTRONGERTHAN(MILLISECONDS) : 1358.70 ISLABELSTRONGERTHAN(MILLISECONDS) : 116.73 ISWEQGRAPHSTRONGERTHAN(MILLISECONDS) : 20.77 UNFREEZE(MILLISECONDS) : 27.88 REPORTCONTAINS(MILLISECONDS) : 0.34 PROJECTAWAY(MILLISECONDS) : 609.45 MEETEDGELABELS(MILLISECONDS) : 96.81 REPORTEQUALITY(MILLISECONDS) : 194.61 ADDALLNODES(MILLISECONDS) : 132.77 REPORTDISEQUALITY(MILLISECONDS) : 2.15 WEQGRAPHJOIN(MILLISECONDS) : 16.97 #FREEZE : 1377 #ADDNODE : 0 #MEET : 169 #FILTERREDUNDANT : 0 #REPORTWEQ : 7 #JOIN : 35 #RENAMEVARS : 432 #FLATTENLABELS : 0 #COPY : 0 #ISSTRONGERTHAN : 370 #ISLABELSTRONGERTHAN : 3389 #ISWEQGRAPHSTRONGERTHAN : 110 #UNFREEZE : 994 #REPORTCONTAINS : 9 #PROJECTAWAY : 393 #MEETEDGELABELS : 608 #REPORTEQUALITY : 1216 #ADDALLNODES : 169 #REPORTDISEQUALITY : 323 #WEQGRAPHJOIN : 35 - StatisticsResult: CcManagerStatistics ADDNODE(MILLISECONDS) : 0.00 MEET(MILLISECONDS) : 539.98 REPORT_EQUALITY(MILLISECONDS) : 156.96 FILTERREDUNDANT(MILLISECONDS) : 981.76 ADD_ALL_ELEMENTS(MILLISECONDS) : 354.85 JOIN(MILLISECONDS) : 15.94 ALIGN_ELEMENTS(MILLISECONDS) : 528.67 COPY(MILLISECONDS) : 0.00 REPORT_DISEQUALITY(MILLISECONDS) : 55.63 UNFREEZE(MILLISECONDS) : 0.00 OVERALL(MILLISECONDS) : 1672.73 REPORTCONTAINS(MILLISECONDS) : 6.52 IS_STRONGER_THAN_NO_CACHING(MILLISECONDS) : 700.95 REMOVE(MILLISECONDS) : 0.00 IS_STRONGER_THAN_W_CACHING(MILLISECONDS) : 0.00 PROJECT_TO_ELEMENTS(MILLISECONDS) : 248.16 #ADDNODE : 0 #MEET : 2044 #REPORT_EQUALITY : 12299 #FILTERREDUNDANT : 10308 #ADD_ALL_ELEMENTS : 8444 #JOIN : 35 #ALIGN_ELEMENTS : 3107 #COPY : 0 #REPORT_DISEQUALITY : 5116 #UNFREEZE : 0 #OVERALL : 56398 #REPORTCONTAINS : 282 #IS_STRONGER_THAN_NO_CACHING : 12620 #REMOVE : 0 #IS_STRONGER_THAN_W_CACHING : 0 #PROJECT_TO_ELEMENTS : 2143 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: HeapSeparatorStatistics #COUNT_NEW_ARRAY_VARS_[#memory_int] : 1 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_0 : 1 COUNT_BLOCKS_for_[#memory_int]_at_dim_0 : 1 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_1 : 1 COUNT_BLOCKS_for_[#memory_int]_at_dim_1 : 1 COUNT_ARRAY_READS for [#memory_int] : 1 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 16]: Timeout (TraceAbstraction) Unable to prove that array index is always in bounds (line 16). Cancelled while BasicCegarLoop was constructing difference of abstraction (2768states) and interpolant automaton (currently 97 states, 124 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 216 known predicates. - TimeoutResultAtElement [Line: 16]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 16). Cancelled while BasicCegarLoop was constructing difference of abstraction (2768states) and interpolant automaton (currently 97 states, 124 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 216 known predicates. - TimeoutResultAtElement [Line: 16]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 16). Cancelled while BasicCegarLoop was constructing difference of abstraction (2768states) and interpolant automaton (currently 97 states, 124 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 216 known predicates. - 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 (2768states) and interpolant automaton (currently 97 states, 124 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 216 known predicates. - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 21). Cancelled while BasicCegarLoop was constructing difference of abstraction (2768states) and interpolant automaton (currently 97 states, 124 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 216 known predicates. - 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 (2768states) and interpolant automaton (currently 97 states, 124 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 216 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 64 locations, 6 error locations. TIMEOUT Result, 218.5s OverallTime, 58 OverallIterations, 262 TraceHistogramMax, 85.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5742 SDtfs, 39772 SDslu, 78201 SDs, 0 SdLazy, 71658 SolverSat, 8744 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98354 GetRequests, 91796 SyntacticMatches, 1023 SemanticMatches, 5534 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257964 ImplicationChecksByTransitivity, 107.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2768occurred in iteration=57, 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: 1.6s AutomataMinimizationTime, 57 MinimizatonAttempts, 812 StatesRemovedByMinimization, 56 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 1.3s SsaConstructionTime, 6.4s SatisfiabilityAnalysisTime, 121.0s InterpolantComputationTime, 47942 NumberOfCodeBlocks, 47942 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 95768 ConstructedInterpolants, 1715 QuantifiedInterpolants, 267283095 SizeOfPredicates, 1952 NumberOfNonLiveVariables, 88309 ConjunctsInSsa, 2234 ConjunctsInUnsatCore, 116 InterpolantComputations, 10 PerfectInterpolantSequences, 5311338/5373576 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/ArraysOfVariableLength5_true-valid-memsafety.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-Benchmark-0-2018-04-12_04-11-56-586.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength5_true-valid-memsafety.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-VPDomainBenchmark-0-2018-04-12_04-11-56-586.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength5_true-valid-memsafety.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-BenchmarkWithCounters-0-2018-04-12_04-11-56-586.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength5_true-valid-memsafety.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-BenchmarkWithCounters-1-2018-04-12_04-11-56-586.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength5_true-valid-memsafety.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-BenchmarkWithCounters-2-2018-04-12_04-11-56-586.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength5_true-valid-memsafety.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-HeapSeparatorBenchmark-0-2018-04-12_04-11-56-586.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength5_true-valid-memsafety.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-12_04-11-56-586.csv Completed graceful shutdown