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 0.1.23-453dfda-m [2018-04-10 03:00:34,824 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-10 03:00:34,826 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-10 03:00:34,841 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-10 03:00:34,841 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-10 03:00:34,842 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-10 03:00:34,844 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-10 03:00:34,846 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-10 03:00:34,848 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-10 03:00:34,849 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-10 03:00:34,850 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-10 03:00:34,851 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-10 03:00:34,852 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-10 03:00:34,854 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-10 03:00:34,855 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-10 03:00:34,857 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-10 03:00:34,859 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-10 03:00:34,861 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-10 03:00:34,863 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-10 03:00:34,864 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-10 03:00:34,867 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-10 03:00:34,867 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-10 03:00:34,868 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-10 03:00:34,869 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-10 03:00:34,870 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-10 03:00:34,871 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-10 03:00:34,872 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-10 03:00:34,873 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-10 03:00:34,874 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-10 03:00:34,874 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-10 03:00:34,875 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-10 03:00:34,875 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 [2018-04-10 03:00:34,901 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-10 03:00:34,901 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-10 03:00:34,902 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-10 03:00:34,902 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-10 03:00:34,903 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-10 03:00:34,903 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-10 03:00:34,903 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-10 03:00:34,903 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-10 03:00:34,903 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-04-10 03:00:34,903 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-10 03:00:34,904 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-10 03:00:34,904 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-10 03:00:34,904 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-10 03:00:34,905 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-10 03:00:34,905 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-10 03:00:34,905 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-10 03:00:34,905 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-10 03:00:34,905 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-10 03:00:34,905 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-10 03:00:34,906 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-10 03:00:34,906 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-10 03:00:34,906 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-10 03:00:34,906 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-10 03:00:34,906 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-10 03:00:34,906 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-10 03:00:34,907 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-10 03:00:34,907 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-10 03:00:34,907 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-10 03:00:34,907 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-10 03:00:34,907 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-10 03:00:34,908 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-10 03:00:34,908 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-10 03:00:34,908 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-10 03:00:34,908 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-10 03:00:34,909 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-10 03:00:34,909 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-10 03:00:34,909 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-10 03:00:34,910 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-10 03:00:34,948 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-10 03:00:34,963 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-10 03:00:34,968 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-10 03:00:34,970 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-10 03:00:34,970 INFO L276 PluginConnector]: CDTParser initialized [2018-04-10 03:00:34,971 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength5_true-valid-memsafety.c [2018-04-10 03:00:35,339 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGd3b660927 [2018-04-10 03:00:35,481 INFO L287 CDTParser]: IsIndexed: true [2018-04-10 03:00:35,481 INFO L288 CDTParser]: Found 1 translation units. [2018-04-10 03:00:35,482 INFO L168 CDTParser]: Scanning ArraysOfVariableLength5_true-valid-memsafety.c [2018-04-10 03:00:35,483 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-10 03:00:35,483 INFO L215 ultiparseSymbolTable]: [2018-04-10 03:00:35,483 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-10 03:00:35,483 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo ('foo') in ArraysOfVariableLength5_true-valid-memsafety.c [2018-04-10 03:00:35,484 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength5_true-valid-memsafety.c [2018-04-10 03:00:35,484 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-10 03:00:35,484 INFO L233 ultiparseSymbolTable]: [2018-04-10 03:00:35,509 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGd3b660927 [2018-04-10 03:00:35,514 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-10 03:00:35,517 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-04-10 03:00:35,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-10 03:00:35,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-10 03:00:35,527 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-10 03:00:35,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 03:00:35" (1/1) ... [2018-04-10 03:00:35,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@101547fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 03:00:35, skipping insertion in model container [2018-04-10 03:00:35,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.04 03:00:35" (1/1) ... [2018-04-10 03:00:35,550 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 03:00:35,584 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-10 03:00:35,764 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 03:00:35,791 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-10 03:00:35,798 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-10 03:00:35,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 03:00:35 WrapperNode [2018-04-10 03:00:35,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-10 03:00:35,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-10 03:00:35,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-10 03:00:35,811 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-10 03:00:35,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 03:00:35" (1/1) ... [2018-04-10 03:00:35,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 03:00:35" (1/1) ... [2018-04-10 03:00:35,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 03:00:35" (1/1) ... [2018-04-10 03:00:35,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 03:00:35" (1/1) ... [2018-04-10 03:00:35,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 03:00:35" (1/1) ... [2018-04-10 03:00:35,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 03:00:35" (1/1) ... [2018-04-10 03:00:35,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 03:00:35" (1/1) ... [2018-04-10 03:00:35,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-10 03:00:35,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-10 03:00:35,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-10 03:00:35,856 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-10 03:00:35,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 03:00:35" (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 [2018-04-10 03:00:35,920 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-10 03:00:35,920 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-10 03:00:35,920 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo [2018-04-10 03:00:35,920 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-10 03:00:35,920 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo [2018-04-10 03:00:35,920 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-10 03:00:35,921 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-10 03:00:35,921 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-10 03:00:35,921 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-10 03:00:35,921 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-10 03:00:35,921 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-10 03:00:35,921 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-10 03:00:35,921 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-10 03:00:36,201 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-10 03:00:36,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 03:00:36 BoogieIcfgContainer [2018-04-10 03:00:36,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-10 03:00:36,202 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-04-10 03:00:36,202 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-04-10 03:00:36,203 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-04-10 03:00:36,206 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 03:00:36" (1/1) ... [2018-04-10 03:00:36,214 INFO L139 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-04-10 03:00:36,215 INFO L140 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-04-10 03:00:36,232 INFO L299 apSepIcfgTransformer]: Heap separator: starting memloc-array-style preprocessing [2018-04-10 03:00:36,245 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-10 03:00:36,247 INFO L332 apSepIcfgTransformer]: finished MemlocArrayUpdater, created 0 location literals (each corresponds to one heap write) [2018-04-10 03:00:36,254 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-10 03:00:36,259 INFO L412 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-04-10 03:00:36,259 DEBUG L416 apSepIcfgTransformer]: storeIndexInfoToLocLiteral: Map: [2018-04-10 03:00:36,261 DEBUG L418 apSepIcfgTransformer]: edgeToIndexToStoreIndexInfo: NestedMap2: [2018-04-10 03:00:36,314 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-04-10 03:00:39,624 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. [2018-04-10 03:00:39,627 INFO L424 apSepIcfgTransformer]: finished equality analysis [2018-04-10 03:00:39,636 INFO L195 HeapSepPreAnalysis]: Number of read from array group [#memory_int] : 1 [2018-04-10 03:00:39,637 INFO L434 apSepIcfgTransformer]: Finished pre analysis before partitioning [2018-04-10 03:00:39,637 INFO L435 apSepIcfgTransformer]: array groups: Set: [#memory_int] [2018-04-10 03:00:39,638 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')) [2018-04-10 03:00:39,642 DEBUG L373 HeapPartitionManager]: creating LocationBlock locs_30 [2018-04-10 03:00:39,643 DEBUG L374 HeapPartitionManager]: with contents [NoStoreIndexInfo] [2018-04-10 03:00:39,643 DEBUG L323 HeapPartitionManager]: adding LocationBlock locs_30 [2018-04-10 03:00:39,643 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')) [2018-04-10 03:00:39,643 DEBUG L325 HeapPartitionManager]: write locations: [NoStoreIndexInfo] [2018-04-10 03:00:39,643 DEBUG L373 HeapPartitionManager]: creating LocationBlock locs_30 [2018-04-10 03:00:39,644 DEBUG L374 HeapPartitionManager]: with contents [NoStoreIndexInfo] [2018-04-10 03:00:39,644 DEBUG L323 HeapPartitionManager]: adding LocationBlock locs_30 [2018-04-10 03:00:39,644 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')) [2018-04-10 03:00:39,644 DEBUG L325 HeapPartitionManager]: write locations: [NoStoreIndexInfo] [2018-04-10 03:00:39,644 INFO L330 HeapPartitionManager]: partitioning result: [2018-04-10 03:00:39,645 INFO L335 HeapPartitionManager]: location blocks for array group [#memory_int] [2018-04-10 03:00:39,645 INFO L344 HeapPartitionManager]: at dimension 0 [2018-04-10 03:00:39,645 INFO L345 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-04-10 03:00:39,645 INFO L346 HeapPartitionManager]: # location blocks :1 [2018-04-10 03:00:39,646 DEBUG L353 HeapPartitionManager]: location block contents: [2018-04-10 03:00:39,646 DEBUG L356 HeapPartitionManager]: [NoStoreIndexInfo] [2018-04-10 03:00:39,646 INFO L344 HeapPartitionManager]: at dimension 1 [2018-04-10 03:00:39,646 INFO L345 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-04-10 03:00:39,646 INFO L346 HeapPartitionManager]: # location blocks :1 [2018-04-10 03:00:39,647 DEBUG L353 HeapPartitionManager]: location block contents: [2018-04-10 03:00:39,647 DEBUG L356 HeapPartitionManager]: [NoStoreIndexInfo] [2018-04-10 03:00:39,648 INFO L134 ransitionTransformer]: executing heap partitioning transformation [2018-04-10 03:00:39,653 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,654 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,654 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,654 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,655 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,655 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,655 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,655 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,656 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,656 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] [2018-04-10 03:00:39,657 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,657 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,657 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,658 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,658 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,658 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,658 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,659 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,659 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-10 03:00:39,659 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-10 03:00:39,659 DEBUG L356 ransitionTransformer]: {main_~i~1=v_main_~i~1_9} [2018-04-10 03:00:39,659 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-10 03:00:39,660 DEBUG L358 ransitionTransformer]: {} [2018-04-10 03:00:39,660 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,660 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,660 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] [2018-04-10 03:00:39,661 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,661 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,661 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,661 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,661 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-10 03:00:39,661 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-10 03:00:39,662 DEBUG L356 ransitionTransformer]: {main_~b~0=v_main_~b~0_3} [2018-04-10 03:00:39,662 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-10 03:00:39,662 DEBUG L358 ransitionTransformer]: {} [2018-04-10 03:00:39,662 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,662 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,663 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,663 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,663 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,663 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,663 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,664 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-10 03:00:39,664 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-10 03:00:39,664 DEBUG L356 ransitionTransformer]: {main_~buffer~0=v_main_~buffer~0_1} [2018-04-10 03:00:39,664 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-10 03:00:39,664 DEBUG L358 ransitionTransformer]: {} [2018-04-10 03:00:39,664 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,665 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,665 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] [2018-04-10 03:00:39,665 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,666 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,666 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,666 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,666 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-10 03:00:39,666 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-10 03:00:39,667 DEBUG L356 ransitionTransformer]: {main_~c~0.base=v_main_~c~0.base_1, main_~c~0.offset=v_main_~c~0.offset_1} [2018-04-10 03:00:39,667 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-10 03:00:39,667 DEBUG L358 ransitionTransformer]: {} [2018-04-10 03:00:39,667 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,667 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,668 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] [2018-04-10 03:00:39,668 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,668 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,668 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,668 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,669 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,669 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,669 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,669 DEBUG L331 ransitionTransformer]: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,669 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,670 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,670 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,670 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[] [2018-04-10 03:00:39,670 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,670 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,671 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,671 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[] [2018-04-10 03:00:39,671 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,671 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,672 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,672 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] [2018-04-10 03:00:39,672 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,672 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,672 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,673 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] [2018-04-10 03:00:39,673 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,673 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,673 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,673 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,674 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,674 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,674 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,674 DEBUG L331 ransitionTransformer]: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,674 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,675 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,675 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,675 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[] [2018-04-10 03:00:39,675 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,675 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,676 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,676 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,676 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,676 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,677 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,677 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[] [2018-04-10 03:00:39,677 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,677 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,677 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,678 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[] [2018-04-10 03:00:39,678 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,678 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,678 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,678 DEBUG L331 ransitionTransformer]: Formula: (= |v_main_#res_2| 0) InVars {} OutVars{main_#res=|v_main_#res_2|} AuxVars[] AssignedVars[main_#res] [2018-04-10 03:00:39,678 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,679 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,679 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,679 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] [2018-04-10 03:00:39,679 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-10 03:00:39,680 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-10 03:00:39,680 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|} [2018-04-10 03:00:39,680 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-10 03:00:39,680 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} [2018-04-10 03:00:39,680 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,681 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,681 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[] [2018-04-10 03:00:39,681 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,681 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,682 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,682 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,682 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,682 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,682 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,683 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] [2018-04-10 03:00:39,683 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,683 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,683 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,684 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[] [2018-04-10 03:00:39,684 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,684 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,684 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,684 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] [2018-04-10 03:00:39,685 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,685 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,685 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,685 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[] [2018-04-10 03:00:39,686 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,686 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,686 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,686 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[] [2018-04-10 03:00:39,686 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,687 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,687 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,687 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,687 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-10 03:00:39,687 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-10 03:00:39,687 DEBUG L356 ransitionTransformer]: {main_~#mask~0.base=|v_main_~#mask~0.base_4|, main_~#mask~0.offset=|v_main_~#mask~0.offset_4|} [2018-04-10 03:00:39,688 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-10 03:00:39,688 DEBUG L358 ransitionTransformer]: {} [2018-04-10 03:00:39,688 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,688 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,689 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] [2018-04-10 03:00:39,689 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,689 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,689 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,690 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] [2018-04-10 03:00:39,690 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,690 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,690 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,690 DEBUG L331 ransitionTransformer]: Formula: (= |v_main_#res_1| 1) InVars {} OutVars{main_#res=|v_main_#res_1|} AuxVars[] AssignedVars[main_#res] [2018-04-10 03:00:39,690 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,691 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,691 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,691 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] [2018-04-10 03:00:39,691 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,691 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,692 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,692 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[] [2018-04-10 03:00:39,692 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,692 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,693 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,693 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[] [2018-04-10 03:00:39,693 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,693 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,693 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,694 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,694 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-10 03:00:39,694 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-10 03:00:39,694 DEBUG L356 ransitionTransformer]: {main_#t~ret3=|v_main_#t~ret3_4|} [2018-04-10 03:00:39,694 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-10 03:00:39,694 DEBUG L358 ransitionTransformer]: {} [2018-04-10 03:00:39,695 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,695 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,695 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,695 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-10 03:00:39,695 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-10 03:00:39,695 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} [2018-04-10 03:00:39,696 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-10 03:00:39,696 DEBUG L358 ransitionTransformer]: {} [2018-04-10 03:00:39,696 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,696 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,697 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] [2018-04-10 03:00:39,697 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,697 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,697 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,697 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] [2018-04-10 03:00:39,698 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,698 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,698 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,698 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] [2018-04-10 03:00:39,698 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,699 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,699 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,699 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,699 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-10 03:00:39,699 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-10 03:00:39,699 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} [2018-04-10 03:00:39,700 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-10 03:00:39,700 DEBUG L358 ransitionTransformer]: {} [2018-04-10 03:00:39,700 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,700 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,700 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,701 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-10 03:00:39,701 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-10 03:00:39,701 DEBUG L356 ransitionTransformer]: {main_~#mask~0.base=|v_main_~#mask~0.base_2|, main_~#mask~0.offset=|v_main_~#mask~0.offset_2|} [2018-04-10 03:00:39,701 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-10 03:00:39,701 DEBUG L358 ransitionTransformer]: {} [2018-04-10 03:00:39,701 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,702 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,702 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,702 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-10 03:00:39,702 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-10 03:00:39,702 DEBUG L356 ransitionTransformer]: {main_#t~post4=|v_main_#t~post4_3|} [2018-04-10 03:00:39,703 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-10 03:00:39,703 DEBUG L358 ransitionTransformer]: {} [2018-04-10 03:00:39,703 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,703 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,703 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] [2018-04-10 03:00:39,704 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,704 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,704 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,704 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] [2018-04-10 03:00:39,704 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,705 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,705 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,705 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,705 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-10 03:00:39,705 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-10 03:00:39,705 DEBUG L356 ransitionTransformer]: {main_#t~post2=|v_main_#t~post2_3|} [2018-04-10 03:00:39,706 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-10 03:00:39,706 DEBUG L358 ransitionTransformer]: {} [2018-04-10 03:00:39,706 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,706 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,706 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,706 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,707 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,707 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,707 DEBUG L331 ransitionTransformer]: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,707 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,707 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,708 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,708 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[] [2018-04-10 03:00:39,708 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,708 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,708 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,709 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[] [2018-04-10 03:00:39,709 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,709 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,709 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,710 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] [2018-04-10 03:00:39,710 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,710 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,710 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,710 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[] [2018-04-10 03:00:39,711 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,711 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,711 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,711 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,711 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,711 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,712 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,712 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,712 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,712 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,715 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,716 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] [2018-04-10 03:00:39,716 DEBUG L338 ransitionTransformer]: formula has changed [2018-04-10 03:00:39,716 DEBUG L339 ransitionTransformer]: old formula: [2018-04-10 03:00:39,716 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)))) [2018-04-10 03:00:39,717 DEBUG L341 ransitionTransformer]: new formula: [2018-04-10 03:00:39,717 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)))) [2018-04-10 03:00:39,717 DEBUG L346 ransitionTransformer]: invars have changed [2018-04-10 03:00:39,717 DEBUG L347 ransitionTransformer]: old invars: [2018-04-10 03:00:39,717 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} [2018-04-10 03:00:39,717 DEBUG L349 ransitionTransformer]: new invars: [2018-04-10 03:00:39,718 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|} [2018-04-10 03:00:39,718 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-10 03:00:39,718 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-10 03:00:39,718 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} [2018-04-10 03:00:39,718 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-10 03:00:39,718 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|} [2018-04-10 03:00:39,719 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,719 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,719 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[] [2018-04-10 03:00:39,719 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,720 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,720 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,720 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[] [2018-04-10 03:00:39,720 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,720 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,721 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,721 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] [2018-04-10 03:00:39,721 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,721 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,722 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,722 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,722 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-10 03:00:39,722 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-10 03:00:39,722 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|} [2018-04-10 03:00:39,722 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-10 03:00:39,723 DEBUG L358 ransitionTransformer]: {} [2018-04-10 03:00:39,723 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,723 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,723 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] [2018-04-10 03:00:39,723 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,724 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,724 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,724 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] [2018-04-10 03:00:39,724 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,724 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,725 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,725 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,725 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-10 03:00:39,725 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-10 03:00:39,725 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|} [2018-04-10 03:00:39,726 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-10 03:00:39,726 DEBUG L358 ransitionTransformer]: {} [2018-04-10 03:00:39,726 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,726 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,726 DEBUG L331 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-04-10 03:00:39,726 DEBUG L334 ransitionTransformer]: transformula unchanged [2018-04-10 03:00:39,727 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,727 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,727 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] [2018-04-10 03:00:39,727 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-10 03:00:39,727 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-10 03:00:39,728 DEBUG L356 ransitionTransformer]: {ULTIMATE.start_#t~ret5=|v_ULTIMATE.start_#t~ret5_2|} [2018-04-10 03:00:39,728 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-10 03:00:39,728 DEBUG L358 ransitionTransformer]: {ULTIMATE.start_#t~ret5=|v_ULTIMATE.start_#t~ret5_2|, main_#res=|v_main_#resOutParam_1|} [2018-04-10 03:00:39,728 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,728 DEBUG L330 ransitionTransformer]: transformed transition [2018-04-10 03:00:39,729 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] [2018-04-10 03:00:39,729 DEBUG L354 ransitionTransformer]: outvars have changed [2018-04-10 03:00:39,729 DEBUG L355 ransitionTransformer]: old outvars: [2018-04-10 03:00:39,729 DEBUG L356 ransitionTransformer]: {main_#t~ret3=|v_main_#t~ret3_5|} [2018-04-10 03:00:39,729 DEBUG L357 ransitionTransformer]: new outvars: [2018-04-10 03:00:39,729 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|} [2018-04-10 03:00:39,730 DEBUG L360 ransitionTransformer]: [2018-04-10 03:00:39,730 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-10 03:00:39,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.04 03:00:39 BasicIcfg [2018-04-10 03:00:39,732 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-04-10 03:00:39,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-10 03:00:39,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-10 03:00:39,737 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-10 03:00:39,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.04 03:00:35" (1/4) ... [2018-04-10 03:00:39,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bdda8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 03:00:39, skipping insertion in model container [2018-04-10 03:00:39,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.04 03:00:35" (2/4) ... [2018-04-10 03:00:39,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bdda8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.04 03:00:39, skipping insertion in model container [2018-04-10 03:00:39,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.04 03:00:36" (3/4) ... [2018-04-10 03:00:39,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bdda8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.04 03:00:39, skipping insertion in model container [2018-04-10 03:00:39,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.04 03:00:39" (4/4) ... [2018-04-10 03:00:39,742 INFO L107 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-04-10 03:00:39,754 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-10 03:00:39,764 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-04-10 03:00:39,813 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-10 03:00:39,814 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-10 03:00:39,814 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-10 03:00:39,814 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-10 03:00:39,814 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-10 03:00:39,815 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-10 03:00:39,815 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-10 03:00:39,815 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-10 03:00:39,815 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-10 03:00:39,816 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-10 03:00:39,832 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-04-10 03:00:39,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-04-10 03:00:39,839 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:39,840 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-10 03:00:39,840 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]=== [2018-04-10 03:00:39,846 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 [2018-04-10 03:00:39,865 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:39,910 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:39,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 03:00:39,975 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:39,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 03:00:40,042 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-10 03:00:40,043 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-10 03:00:40,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-10 03:00:40,058 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-10 03:00:40,059 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-10 03:00:40,062 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 4 states. [2018-04-10 03:00:40,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:40,209 INFO L93 Difference]: Finished difference Result 141 states and 163 transitions. [2018-04-10 03:00:40,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-10 03:00:40,211 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-04-10 03:00:40,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:40,226 INFO L225 Difference]: With dead ends: 141 [2018-04-10 03:00:40,226 INFO L226 Difference]: Without dead ends: 84 [2018-04-10 03:00:40,231 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 [2018-04-10 03:00:40,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-04-10 03:00:40,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 68. [2018-04-10 03:00:40,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-04-10 03:00:40,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2018-04-10 03:00:40,284 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 16 [2018-04-10 03:00:40,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:40,284 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2018-04-10 03:00:40,284 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-10 03:00:40,285 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2018-04-10 03:00:40,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-10 03:00:40,286 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:40,286 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] [2018-04-10 03:00:40,286 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]=== [2018-04-10 03:00:40,286 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 [2018-04-10 03:00:40,301 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:40,321 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:40,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 03:00:40,334 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:40,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 03:00:40,409 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-10 03:00:40,410 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2018-04-10 03:00:40,411 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-10 03:00:40,412 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-10 03:00:40,412 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-04-10 03:00:40,412 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand 4 states. [2018-04-10 03:00:40,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:40,481 INFO L93 Difference]: Finished difference Result 82 states and 86 transitions. [2018-04-10 03:00:40,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-10 03:00:40,482 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-04-10 03:00:40,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:40,485 INFO L225 Difference]: With dead ends: 82 [2018-04-10 03:00:40,486 INFO L226 Difference]: Without dead ends: 81 [2018-04-10 03:00:40,494 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 [2018-04-10 03:00:40,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-04-10 03:00:40,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 71. [2018-04-10 03:00:40,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-04-10 03:00:40,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2018-04-10 03:00:40,503 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 25 [2018-04-10 03:00:40,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:40,504 INFO L459 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2018-04-10 03:00:40,504 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-10 03:00:40,504 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2018-04-10 03:00:40,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-10 03:00:40,505 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:40,505 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] [2018-04-10 03:00:40,505 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]=== [2018-04-10 03:00:40,505 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 [2018-04-10 03:00:40,512 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:40,529 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:40,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 03:00:40,630 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:40,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 03:00:40,736 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-10 03:00:40,737 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2018-04-10 03:00:40,737 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-10 03:00:40,737 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-10 03:00:40,738 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-04-10 03:00:40,738 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand 7 states. [2018-04-10 03:00:40,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:40,999 INFO L93 Difference]: Finished difference Result 150 states and 160 transitions. [2018-04-10 03:00:40,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-10 03:00:40,999 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-04-10 03:00:41,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:41,001 INFO L225 Difference]: With dead ends: 150 [2018-04-10 03:00:41,001 INFO L226 Difference]: Without dead ends: 95 [2018-04-10 03:00:41,002 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-04-10 03:00:41,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-04-10 03:00:41,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 82. [2018-04-10 03:00:41,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-04-10 03:00:41,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 86 transitions. [2018-04-10 03:00:41,011 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 86 transitions. Word has length 26 [2018-04-10 03:00:41,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:41,011 INFO L459 AbstractCegarLoop]: Abstraction has 82 states and 86 transitions. [2018-04-10 03:00:41,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-10 03:00:41,012 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 86 transitions. [2018-04-10 03:00:41,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-10 03:00:41,013 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:41,013 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] [2018-04-10 03:00:41,013 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]=== [2018-04-10 03:00:41,014 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 [2018-04-10 03:00:41,020 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:41,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:41,040 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:41,074 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 03:00:41,075 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:41,125 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 03:00:41,149 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-10 03:00:41,149 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-04-10 03:00:41,150 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-10 03:00:41,150 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-10 03:00:41,150 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-04-10 03:00:41,151 INFO L87 Difference]: Start difference. First operand 82 states and 86 transitions. Second operand 9 states. [2018-04-10 03:00:41,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:41,392 INFO L93 Difference]: Finished difference Result 97 states and 100 transitions. [2018-04-10 03:00:41,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-10 03:00:41,392 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2018-04-10 03:00:41,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:41,393 INFO L225 Difference]: With dead ends: 97 [2018-04-10 03:00:41,393 INFO L226 Difference]: Without dead ends: 96 [2018-04-10 03:00:41,394 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2018-04-10 03:00:41,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-04-10 03:00:41,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 81. [2018-04-10 03:00:41,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-04-10 03:00:41,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 85 transitions. [2018-04-10 03:00:41,403 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 85 transitions. Word has length 37 [2018-04-10 03:00:41,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:41,404 INFO L459 AbstractCegarLoop]: Abstraction has 81 states and 85 transitions. [2018-04-10 03:00:41,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-10 03:00:41,404 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 85 transitions. [2018-04-10 03:00:41,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-04-10 03:00:41,405 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:41,406 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] [2018-04-10 03:00:41,406 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]=== [2018-04-10 03:00:41,406 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 [2018-04-10 03:00:41,415 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:41,463 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:41,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 03:00:41,542 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:41,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 03:00:41,625 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:00:41,625 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-04-10 03:00:41,625 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-10 03:00:41,626 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-10 03:00:41,626 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-04-10 03:00:41,626 INFO L87 Difference]: Start difference. First operand 81 states and 85 transitions. Second operand 8 states. [2018-04-10 03:00:41,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:41,840 INFO L93 Difference]: Finished difference Result 137 states and 145 transitions. [2018-04-10 03:00:41,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-10 03:00:41,841 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 44 [2018-04-10 03:00:41,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:41,842 INFO L225 Difference]: With dead ends: 137 [2018-04-10 03:00:41,842 INFO L226 Difference]: Without dead ends: 117 [2018-04-10 03:00:41,843 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2018-04-10 03:00:41,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-04-10 03:00:41,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 100. [2018-04-10 03:00:41,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-04-10 03:00:41,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 105 transitions. [2018-04-10 03:00:41,859 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 105 transitions. Word has length 44 [2018-04-10 03:00:41,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:41,859 INFO L459 AbstractCegarLoop]: Abstraction has 100 states and 105 transitions. [2018-04-10 03:00:41,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-10 03:00:41,859 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 105 transitions. [2018-04-10 03:00:41,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-10 03:00:41,862 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:41,862 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] [2018-04-10 03:00:41,862 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]=== [2018-04-10 03:00:41,863 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 [2018-04-10 03:00:41,883 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:41,920 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:41,960 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 [2018-04-10 03:00:41,961 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 03:00:41,966 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 03:00:41,966 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-10 03:00:42,050 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 03:00:42,051 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:42,108 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 03:00:42,133 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:00:42,133 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 6 [2018-04-10 03:00:42,133 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-10 03:00:42,133 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-10 03:00:42,134 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-10 03:00:42,134 INFO L87 Difference]: Start difference. First operand 100 states and 105 transitions. Second operand 7 states. [2018-04-10 03:00:42,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:42,178 INFO L93 Difference]: Finished difference Result 100 states and 105 transitions. [2018-04-10 03:00:42,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-10 03:00:42,178 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2018-04-10 03:00:42,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:42,180 INFO L225 Difference]: With dead ends: 100 [2018-04-10 03:00:42,180 INFO L226 Difference]: Without dead ends: 99 [2018-04-10 03:00:42,180 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 [2018-04-10 03:00:42,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-04-10 03:00:42,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2018-04-10 03:00:42,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-04-10 03:00:42,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 104 transitions. [2018-04-10 03:00:42,191 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 104 transitions. Word has length 47 [2018-04-10 03:00:42,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:42,192 INFO L459 AbstractCegarLoop]: Abstraction has 99 states and 104 transitions. [2018-04-10 03:00:42,192 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-10 03:00:42,192 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 104 transitions. [2018-04-10 03:00:42,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-10 03:00:42,193 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:42,193 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] [2018-04-10 03:00:42,193 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]=== [2018-04-10 03:00:42,194 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 [2018-04-10 03:00:42,208 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:42,236 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:42,249 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 [2018-04-10 03:00:42,249 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 03:00:42,256 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 03:00:42,256 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-10 03:00:42,348 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 03:00:42,348 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:42,430 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-10 03:00:42,453 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:00:42,453 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2018-04-10 03:00:42,454 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-10 03:00:42,454 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-10 03:00:42,454 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-04-10 03:00:42,454 INFO L87 Difference]: Start difference. First operand 99 states and 104 transitions. Second operand 13 states. [2018-04-10 03:00:42,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:42,589 INFO L93 Difference]: Finished difference Result 108 states and 114 transitions. [2018-04-10 03:00:42,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-10 03:00:42,589 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 47 [2018-04-10 03:00:42,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:42,591 INFO L225 Difference]: With dead ends: 108 [2018-04-10 03:00:42,591 INFO L226 Difference]: Without dead ends: 107 [2018-04-10 03:00:42,592 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 [2018-04-10 03:00:42,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-04-10 03:00:42,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 100. [2018-04-10 03:00:42,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-04-10 03:00:42,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 105 transitions. [2018-04-10 03:00:42,605 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 105 transitions. Word has length 47 [2018-04-10 03:00:42,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:42,605 INFO L459 AbstractCegarLoop]: Abstraction has 100 states and 105 transitions. [2018-04-10 03:00:42,605 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-10 03:00:42,605 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 105 transitions. [2018-04-10 03:00:42,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-04-10 03:00:42,607 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:42,607 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] [2018-04-10 03:00:42,607 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]=== [2018-04-10 03:00:42,607 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 [2018-04-10 03:00:42,614 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:42,645 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:42,711 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 03:00:42,711 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:42,760 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-10 03:00:42,783 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:00:42,783 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 13 [2018-04-10 03:00:42,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-10 03:00:42,784 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-10 03:00:42,784 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-04-10 03:00:42,784 INFO L87 Difference]: Start difference. First operand 100 states and 105 transitions. Second operand 13 states. [2018-04-10 03:00:42,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:42,978 INFO L93 Difference]: Finished difference Result 192 states and 203 transitions. [2018-04-10 03:00:42,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-10 03:00:42,979 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2018-04-10 03:00:42,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:42,980 INFO L225 Difference]: With dead ends: 192 [2018-04-10 03:00:42,980 INFO L226 Difference]: Without dead ends: 130 [2018-04-10 03:00:42,981 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 [2018-04-10 03:00:42,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-04-10 03:00:42,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 119. [2018-04-10 03:00:42,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-04-10 03:00:42,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 124 transitions. [2018-04-10 03:00:42,990 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 124 transitions. Word has length 55 [2018-04-10 03:00:42,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:42,991 INFO L459 AbstractCegarLoop]: Abstraction has 119 states and 124 transitions. [2018-04-10 03:00:42,991 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-10 03:00:42,991 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 124 transitions. [2018-04-10 03:00:42,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-04-10 03:00:42,992 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:42,992 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] [2018-04-10 03:00:42,993 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]=== [2018-04-10 03:00:42,993 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 [2018-04-10 03:00:43,001 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:43,028 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:43,069 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-04-10 03:00:43,069 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:43,134 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-04-10 03:00:43,157 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-10 03:00:43,158 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 10 [2018-04-10 03:00:43,158 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-10 03:00:43,158 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-10 03:00:43,158 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-04-10 03:00:43,159 INFO L87 Difference]: Start difference. First operand 119 states and 124 transitions. Second operand 10 states. [2018-04-10 03:00:43,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:43,311 INFO L93 Difference]: Finished difference Result 201 states and 209 transitions. [2018-04-10 03:00:43,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-10 03:00:43,311 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 76 [2018-04-10 03:00:43,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:43,312 INFO L225 Difference]: With dead ends: 201 [2018-04-10 03:00:43,312 INFO L226 Difference]: Without dead ends: 133 [2018-04-10 03:00:43,313 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 [2018-04-10 03:00:43,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-04-10 03:00:43,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 119. [2018-04-10 03:00:43,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-04-10 03:00:43,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 122 transitions. [2018-04-10 03:00:43,321 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 122 transitions. Word has length 76 [2018-04-10 03:00:43,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:43,322 INFO L459 AbstractCegarLoop]: Abstraction has 119 states and 122 transitions. [2018-04-10 03:00:43,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-10 03:00:43,322 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 122 transitions. [2018-04-10 03:00:43,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-04-10 03:00:43,323 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:43,323 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] [2018-04-10 03:00:43,323 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]=== [2018-04-10 03:00:43,323 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 [2018-04-10 03:00:43,335 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:43,362 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:43,380 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-04-10 03:00:43,380 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:43,407 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-04-10 03:00:43,441 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:00:43,442 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-04-10 03:00:43,442 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-10 03:00:43,442 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-10 03:00:43,442 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-04-10 03:00:43,442 INFO L87 Difference]: Start difference. First operand 119 states and 122 transitions. Second operand 8 states. [2018-04-10 03:00:43,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:43,512 INFO L93 Difference]: Finished difference Result 150 states and 156 transitions. [2018-04-10 03:00:43,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-10 03:00:43,512 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 85 [2018-04-10 03:00:43,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:43,513 INFO L225 Difference]: With dead ends: 150 [2018-04-10 03:00:43,513 INFO L226 Difference]: Without dead ends: 149 [2018-04-10 03:00:43,514 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 [2018-04-10 03:00:43,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-04-10 03:00:43,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 136. [2018-04-10 03:00:43,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-04-10 03:00:43,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 142 transitions. [2018-04-10 03:00:43,521 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 142 transitions. Word has length 85 [2018-04-10 03:00:43,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:43,521 INFO L459 AbstractCegarLoop]: Abstraction has 136 states and 142 transitions. [2018-04-10 03:00:43,521 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-10 03:00:43,521 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 142 transitions. [2018-04-10 03:00:43,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-04-10 03:00:43,522 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:43,522 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] [2018-04-10 03:00:43,522 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]=== [2018-04-10 03:00:43,523 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 [2018-04-10 03:00:43,529 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:43,549 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:43,552 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 [2018-04-10 03:00:43,552 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 03:00:43,555 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 03:00:43,555 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-10 03:00:43,675 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 31 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-04-10 03:00:43,675 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:43,828 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 31 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-04-10 03:00:43,851 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:00:43,851 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2018-04-10 03:00:43,852 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-10 03:00:43,852 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-10 03:00:43,852 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2018-04-10 03:00:43,852 INFO L87 Difference]: Start difference. First operand 136 states and 142 transitions. Second operand 17 states. [2018-04-10 03:00:44,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:44,181 INFO L93 Difference]: Finished difference Result 147 states and 153 transitions. [2018-04-10 03:00:44,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-10 03:00:44,182 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 86 [2018-04-10 03:00:44,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:44,183 INFO L225 Difference]: With dead ends: 147 [2018-04-10 03:00:44,183 INFO L226 Difference]: Without dead ends: 146 [2018-04-10 03:00:44,184 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 154 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=455, Unknown=0, NotChecked=0, Total=600 [2018-04-10 03:00:44,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-04-10 03:00:44,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 137. [2018-04-10 03:00:44,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-04-10 03:00:44,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 142 transitions. [2018-04-10 03:00:44,194 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 142 transitions. Word has length 86 [2018-04-10 03:00:44,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:44,194 INFO L459 AbstractCegarLoop]: Abstraction has 137 states and 142 transitions. [2018-04-10 03:00:44,194 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-10 03:00:44,194 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 142 transitions. [2018-04-10 03:00:44,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-04-10 03:00:44,196 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:44,196 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] [2018-04-10 03:00:44,196 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]=== [2018-04-10 03:00:44,197 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 [2018-04-10 03:00:44,212 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:44,243 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:44,394 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 91 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-04-10 03:00:44,394 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:44,489 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 91 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-04-10 03:00:44,512 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:00:44,512 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 19 [2018-04-10 03:00:44,512 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-10 03:00:44,512 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-10 03:00:44,513 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2018-04-10 03:00:44,513 INFO L87 Difference]: Start difference. First operand 137 states and 142 transitions. Second operand 19 states. [2018-04-10 03:00:44,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:44,805 INFO L93 Difference]: Finished difference Result 256 states and 269 transitions. [2018-04-10 03:00:44,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-10 03:00:44,805 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 103 [2018-04-10 03:00:44,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:44,807 INFO L225 Difference]: With dead ends: 256 [2018-04-10 03:00:44,807 INFO L226 Difference]: Without dead ends: 184 [2018-04-10 03:00:44,808 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 181 SyntacticMatches, 7 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=186, Invalid=744, Unknown=0, NotChecked=0, Total=930 [2018-04-10 03:00:44,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-04-10 03:00:44,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 168. [2018-04-10 03:00:44,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-04-10 03:00:44,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 174 transitions. [2018-04-10 03:00:44,820 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 174 transitions. Word has length 103 [2018-04-10 03:00:44,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:44,821 INFO L459 AbstractCegarLoop]: Abstraction has 168 states and 174 transitions. [2018-04-10 03:00:44,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-10 03:00:44,821 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 174 transitions. [2018-04-10 03:00:44,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-04-10 03:00:44,822 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:44,823 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] [2018-04-10 03:00:44,823 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]=== [2018-04-10 03:00:44,823 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 [2018-04-10 03:00:44,831 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:44,863 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:44,954 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 70 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-04-10 03:00:44,955 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:45,114 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 70 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-04-10 03:00:45,136 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:00:45,137 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 16 [2018-04-10 03:00:45,137 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-10 03:00:45,137 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-10 03:00:45,137 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2018-04-10 03:00:45,138 INFO L87 Difference]: Start difference. First operand 168 states and 174 transitions. Second operand 16 states. [2018-04-10 03:00:45,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:45,374 INFO L93 Difference]: Finished difference Result 256 states and 266 transitions. [2018-04-10 03:00:45,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-10 03:00:45,374 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 104 [2018-04-10 03:00:45,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:45,375 INFO L225 Difference]: With dead ends: 256 [2018-04-10 03:00:45,376 INFO L226 Difference]: Without dead ends: 178 [2018-04-10 03:00:45,377 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 [2018-04-10 03:00:45,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-04-10 03:00:45,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 168. [2018-04-10 03:00:45,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-04-10 03:00:45,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 172 transitions. [2018-04-10 03:00:45,388 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 172 transitions. Word has length 104 [2018-04-10 03:00:45,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:45,388 INFO L459 AbstractCegarLoop]: Abstraction has 168 states and 172 transitions. [2018-04-10 03:00:45,389 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-10 03:00:45,389 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 172 transitions. [2018-04-10 03:00:45,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-04-10 03:00:45,390 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:45,390 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] [2018-04-10 03:00:45,390 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]=== [2018-04-10 03:00:45,391 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 [2018-04-10 03:00:45,399 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:45,437 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:45,550 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-04-10 03:00:45,550 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:45,632 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-04-10 03:00:45,667 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:00:45,667 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2018-04-10 03:00:45,667 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-10 03:00:45,667 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-10 03:00:45,668 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2018-04-10 03:00:45,668 INFO L87 Difference]: Start difference. First operand 168 states and 172 transitions. Second operand 16 states. [2018-04-10 03:00:45,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:45,867 INFO L93 Difference]: Finished difference Result 246 states and 258 transitions. [2018-04-10 03:00:45,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-10 03:00:45,868 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 113 [2018-04-10 03:00:45,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:45,869 INFO L225 Difference]: With dead ends: 246 [2018-04-10 03:00:45,869 INFO L226 Difference]: Without dead ends: 226 [2018-04-10 03:00:45,870 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 [2018-04-10 03:00:45,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2018-04-10 03:00:45,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 209. [2018-04-10 03:00:45,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2018-04-10 03:00:45,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 216 transitions. [2018-04-10 03:00:45,890 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 216 transitions. Word has length 113 [2018-04-10 03:00:45,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:45,890 INFO L459 AbstractCegarLoop]: Abstraction has 209 states and 216 transitions. [2018-04-10 03:00:45,890 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-10 03:00:45,891 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 216 transitions. [2018-04-10 03:00:45,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-04-10 03:00:45,892 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:45,892 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] [2018-04-10 03:00:45,892 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]=== [2018-04-10 03:00:45,893 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 [2018-04-10 03:00:45,902 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:45,939 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:46,056 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 165 proven. 48 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-04-10 03:00:46,056 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:46,175 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 165 proven. 48 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-04-10 03:00:46,198 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:00:46,198 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 25 [2018-04-10 03:00:46,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-10 03:00:46,199 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-10 03:00:46,199 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600 [2018-04-10 03:00:46,200 INFO L87 Difference]: Start difference. First operand 209 states and 216 transitions. Second operand 25 states. [2018-04-10 03:00:47,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:47,039 INFO L93 Difference]: Finished difference Result 359 states and 374 transitions. [2018-04-10 03:00:47,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-10 03:00:47,040 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 142 [2018-04-10 03:00:47,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:47,042 INFO L225 Difference]: With dead ends: 359 [2018-04-10 03:00:47,042 INFO L226 Difference]: Without dead ends: 257 [2018-04-10 03:00:47,044 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 251 SyntacticMatches, 9 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=321, Invalid=1401, Unknown=0, NotChecked=0, Total=1722 [2018-04-10 03:00:47,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2018-04-10 03:00:47,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 246. [2018-04-10 03:00:47,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2018-04-10 03:00:47,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 253 transitions. [2018-04-10 03:00:47,056 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 253 transitions. Word has length 142 [2018-04-10 03:00:47,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:47,056 INFO L459 AbstractCegarLoop]: Abstraction has 246 states and 253 transitions. [2018-04-10 03:00:47,056 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-10 03:00:47,056 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 253 transitions. [2018-04-10 03:00:47,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-04-10 03:00:47,057 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:47,058 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] [2018-04-10 03:00:47,058 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]=== [2018-04-10 03:00:47,058 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 [2018-04-10 03:00:47,065 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:47,110 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:47,372 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 384 proven. 13 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-04-10 03:00:47,372 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:47,559 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 384 proven. 13 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-04-10 03:00:47,582 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:00:47,583 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 22 [2018-04-10 03:00:47,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-10 03:00:47,583 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-10 03:00:47,584 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2018-04-10 03:00:47,584 INFO L87 Difference]: Start difference. First operand 246 states and 253 transitions. Second operand 22 states. [2018-04-10 03:00:47,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:47,944 INFO L93 Difference]: Finished difference Result 368 states and 382 transitions. [2018-04-10 03:00:47,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-10 03:00:47,944 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 181 [2018-04-10 03:00:47,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:47,946 INFO L225 Difference]: With dead ends: 368 [2018-04-10 03:00:47,946 INFO L226 Difference]: Without dead ends: 260 [2018-04-10 03:00:47,948 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 333 SyntacticMatches, 9 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=256, Invalid=1076, Unknown=0, NotChecked=0, Total=1332 [2018-04-10 03:00:47,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2018-04-10 03:00:47,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 246. [2018-04-10 03:00:47,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2018-04-10 03:00:47,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 251 transitions. [2018-04-10 03:00:47,963 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 251 transitions. Word has length 181 [2018-04-10 03:00:47,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:47,964 INFO L459 AbstractCegarLoop]: Abstraction has 246 states and 251 transitions. [2018-04-10 03:00:47,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-10 03:00:47,964 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 251 transitions. [2018-04-10 03:00:47,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-04-10 03:00:47,966 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:47,966 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] [2018-04-10 03:00:47,966 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]=== [2018-04-10 03:00:47,967 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 [2018-04-10 03:00:47,976 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:48,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:48,024 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:48,067 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 212 proven. 36 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2018-04-10 03:00:48,067 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:48,169 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 212 proven. 36 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2018-04-10 03:00:48,192 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:00:48,192 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2018-04-10 03:00:48,193 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-10 03:00:48,193 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-10 03:00:48,193 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-04-10 03:00:48,193 INFO L87 Difference]: Start difference. First operand 246 states and 251 transitions. Second operand 16 states. [2018-04-10 03:00:48,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:48,455 INFO L93 Difference]: Finished difference Result 303 states and 323 transitions. [2018-04-10 03:00:48,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-10 03:00:48,456 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 190 [2018-04-10 03:00:48,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:48,459 INFO L225 Difference]: With dead ends: 303 [2018-04-10 03:00:48,459 INFO L226 Difference]: Without dead ends: 302 [2018-04-10 03:00:48,460 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 [2018-04-10 03:00:48,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2018-04-10 03:00:48,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 281. [2018-04-10 03:00:48,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2018-04-10 03:00:48,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 293 transitions. [2018-04-10 03:00:48,477 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 293 transitions. Word has length 190 [2018-04-10 03:00:48,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:48,478 INFO L459 AbstractCegarLoop]: Abstraction has 281 states and 293 transitions. [2018-04-10 03:00:48,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-10 03:00:48,478 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 293 transitions. [2018-04-10 03:00:48,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-04-10 03:00:48,479 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:48,480 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] [2018-04-10 03:00:48,480 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]=== [2018-04-10 03:00:48,480 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 [2018-04-10 03:00:48,488 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:48,533 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:48,549 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 [2018-04-10 03:00:48,550 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 03:00:48,599 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 03:00:48,599 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-10 03:00:49,130 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 238 proven. 47 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2018-04-10 03:00:49,130 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:49,429 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 238 proven. 47 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2018-04-10 03:00:49,452 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:00:49,453 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2018-04-10 03:00:49,453 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-10 03:00:49,454 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-10 03:00:49,454 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2018-04-10 03:00:49,454 INFO L87 Difference]: Start difference. First operand 281 states and 293 transitions. Second operand 25 states. [2018-04-10 03:00:50,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:50,114 INFO L93 Difference]: Finished difference Result 298 states and 318 transitions. [2018-04-10 03:00:50,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-10 03:00:50,114 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 191 [2018-04-10 03:00:50,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:50,116 INFO L225 Difference]: With dead ends: 298 [2018-04-10 03:00:50,116 INFO L226 Difference]: Without dead ends: 297 [2018-04-10 03:00:50,116 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 352 SyntacticMatches, 7 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=375, Invalid=1265, Unknown=0, NotChecked=0, Total=1640 [2018-04-10 03:00:50,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2018-04-10 03:00:50,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 282. [2018-04-10 03:00:50,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2018-04-10 03:00:50,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 291 transitions. [2018-04-10 03:00:50,131 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 291 transitions. Word has length 191 [2018-04-10 03:00:50,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:50,132 INFO L459 AbstractCegarLoop]: Abstraction has 282 states and 291 transitions. [2018-04-10 03:00:50,132 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-10 03:00:50,132 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 291 transitions. [2018-04-10 03:00:50,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-04-10 03:00:50,134 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:50,134 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] [2018-04-10 03:00:50,135 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]=== [2018-04-10 03:00:50,135 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 [2018-04-10 03:00:50,145 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:50,202 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:50,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 660 proven. 86 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2018-04-10 03:00:50,443 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:50,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 660 proven. 86 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2018-04-10 03:00:50,767 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:00:50,767 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 31 [2018-04-10 03:00:50,768 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-04-10 03:00:50,768 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-04-10 03:00:50,769 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=789, Unknown=0, NotChecked=0, Total=930 [2018-04-10 03:00:50,769 INFO L87 Difference]: Start difference. First operand 282 states and 291 transitions. Second operand 31 states. [2018-04-10 03:00:51,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:51,203 INFO L93 Difference]: Finished difference Result 466 states and 485 transitions. [2018-04-10 03:00:51,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-10 03:00:51,203 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 226 [2018-04-10 03:00:51,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:51,206 INFO L225 Difference]: With dead ends: 466 [2018-04-10 03:00:51,206 INFO L226 Difference]: Without dead ends: 339 [2018-04-10 03:00:51,208 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 411 SyntacticMatches, 11 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=492, Invalid=2264, Unknown=0, NotChecked=0, Total=2756 [2018-04-10 03:00:51,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2018-04-10 03:00:51,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 328. [2018-04-10 03:00:51,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2018-04-10 03:00:51,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 337 transitions. [2018-04-10 03:00:51,226 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 337 transitions. Word has length 226 [2018-04-10 03:00:51,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:51,227 INFO L459 AbstractCegarLoop]: Abstraction has 328 states and 337 transitions. [2018-04-10 03:00:51,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-04-10 03:00:51,227 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 337 transitions. [2018-04-10 03:00:51,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2018-04-10 03:00:51,230 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:51,230 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] [2018-04-10 03:00:51,230 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]=== [2018-04-10 03:00:51,231 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 [2018-04-10 03:00:51,248 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:51,304 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:51,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1558 backedges. 1064 proven. 33 refuted. 0 times theorem prover too weak. 461 trivial. 0 not checked. [2018-04-10 03:00:51,508 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:51,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1558 backedges. 1064 proven. 33 refuted. 0 times theorem prover too weak. 461 trivial. 0 not checked. [2018-04-10 03:00:51,965 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:00:51,965 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 28 [2018-04-10 03:00:51,966 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-10 03:00:51,966 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-10 03:00:51,967 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=630, Unknown=0, NotChecked=0, Total=756 [2018-04-10 03:00:51,967 INFO L87 Difference]: Start difference. First operand 328 states and 337 transitions. Second operand 28 states. [2018-04-10 03:00:52,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:52,411 INFO L93 Difference]: Finished difference Result 471 states and 488 transitions. [2018-04-10 03:00:52,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-10 03:00:52,411 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 274 [2018-04-10 03:00:52,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:52,413 INFO L225 Difference]: With dead ends: 471 [2018-04-10 03:00:52,413 INFO L226 Difference]: Without dead ends: 338 [2018-04-10 03:00:52,414 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 511 SyntacticMatches, 11 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=412, Invalid=1844, Unknown=0, NotChecked=0, Total=2256 [2018-04-10 03:00:52,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2018-04-10 03:00:52,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 328. [2018-04-10 03:00:52,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2018-04-10 03:00:52,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 335 transitions. [2018-04-10 03:00:52,424 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 335 transitions. Word has length 274 [2018-04-10 03:00:52,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:52,424 INFO L459 AbstractCegarLoop]: Abstraction has 328 states and 335 transitions. [2018-04-10 03:00:52,424 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-10 03:00:52,424 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 335 transitions. [2018-04-10 03:00:52,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2018-04-10 03:00:52,425 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:52,425 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] [2018-04-10 03:00:52,425 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]=== [2018-04-10 03:00:52,426 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 [2018-04-10 03:00:52,433 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:52,493 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:52,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1715 backedges. 964 proven. 135 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2018-04-10 03:00:52,727 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:53,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1715 backedges. 964 proven. 135 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2018-04-10 03:00:53,055 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:00:53,055 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 37 [2018-04-10 03:00:53,055 INFO L442 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-04-10 03:00:53,056 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-04-10 03:00:53,056 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=1139, Unknown=0, NotChecked=0, Total=1332 [2018-04-10 03:00:53,056 INFO L87 Difference]: Start difference. First operand 328 states and 335 transitions. Second operand 37 states. [2018-04-10 03:00:53,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:53,698 INFO L93 Difference]: Finished difference Result 510 states and 525 transitions. [2018-04-10 03:00:53,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-10 03:00:53,698 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 283 [2018-04-10 03:00:53,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:53,700 INFO L225 Difference]: With dead ends: 510 [2018-04-10 03:00:53,700 INFO L226 Difference]: Without dead ends: 394 [2018-04-10 03:00:53,701 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 [2018-04-10 03:00:53,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2018-04-10 03:00:53,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 383. [2018-04-10 03:00:53,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2018-04-10 03:00:53,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 390 transitions. [2018-04-10 03:00:53,726 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 390 transitions. Word has length 283 [2018-04-10 03:00:53,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:53,727 INFO L459 AbstractCegarLoop]: Abstraction has 383 states and 390 transitions. [2018-04-10 03:00:53,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-04-10 03:00:53,727 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 390 transitions. [2018-04-10 03:00:53,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2018-04-10 03:00:53,729 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:53,729 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] [2018-04-10 03:00:53,730 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]=== [2018-04-10 03:00:53,730 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 [2018-04-10 03:00:53,736 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:53,812 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:54,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 1337 proven. 62 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2018-04-10 03:00:54,072 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:54,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 697 proven. 230 refuted. 0 times theorem prover too weak. 1157 trivial. 0 not checked. [2018-04-10 03:00:54,430 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:00:54,430 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 34 [2018-04-10 03:00:54,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-10 03:00:54,431 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-10 03:00:54,431 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=946, Unknown=0, NotChecked=0, Total=1122 [2018-04-10 03:00:54,431 INFO L87 Difference]: Start difference. First operand 383 states and 390 transitions. Second operand 34 states. [2018-04-10 03:00:55,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:55,061 INFO L93 Difference]: Finished difference Result 515 states and 527 transitions. [2018-04-10 03:00:55,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-10 03:00:55,063 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 332 [2018-04-10 03:00:55,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:55,066 INFO L225 Difference]: With dead ends: 515 [2018-04-10 03:00:55,066 INFO L226 Difference]: Without dead ends: 393 [2018-04-10 03:00:55,068 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 [2018-04-10 03:00:55,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2018-04-10 03:00:55,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 383. [2018-04-10 03:00:55,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2018-04-10 03:00:55,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 388 transitions. [2018-04-10 03:00:55,085 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 388 transitions. Word has length 332 [2018-04-10 03:00:55,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:55,086 INFO L459 AbstractCegarLoop]: Abstraction has 383 states and 388 transitions. [2018-04-10 03:00:55,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-04-10 03:00:55,086 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 388 transitions. [2018-04-10 03:00:55,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2018-04-10 03:00:55,089 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:55,089 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] [2018-04-10 03:00:55,089 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]=== [2018-04-10 03:00:55,089 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 [2018-04-10 03:00:55,108 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:55,191 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:55,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2796 backedges. 1325 proven. 195 refuted. 0 times theorem prover too weak. 1276 trivial. 0 not checked. [2018-04-10 03:00:55,757 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:56,193 INFO L134 CoverageAnalysis]: Checked inductivity of 2796 backedges. 1325 proven. 195 refuted. 0 times theorem prover too weak. 1276 trivial. 0 not checked. [2018-04-10 03:00:56,214 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:00:56,215 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 43 [2018-04-10 03:00:56,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-04-10 03:00:56,215 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-04-10 03:00:56,216 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=1553, Unknown=0, NotChecked=0, Total=1806 [2018-04-10 03:00:56,216 INFO L87 Difference]: Start difference. First operand 383 states and 388 transitions. Second operand 43 states. [2018-04-10 03:00:57,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:57,302 INFO L93 Difference]: Finished difference Result 574 states and 587 transitions. [2018-04-10 03:00:57,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-04-10 03:00:57,303 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 349 [2018-04-10 03:00:57,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:57,306 INFO L225 Difference]: With dead ends: 574 [2018-04-10 03:00:57,306 INFO L226 Difference]: Without dead ends: 466 [2018-04-10 03:00:57,308 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 729 GetRequests, 641 SyntacticMatches, 15 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1346 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=942, Invalid=4608, Unknown=0, NotChecked=0, Total=5550 [2018-04-10 03:00:57,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2018-04-10 03:00:57,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 450. [2018-04-10 03:00:57,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2018-04-10 03:00:57,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 456 transitions. [2018-04-10 03:00:57,331 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 456 transitions. Word has length 349 [2018-04-10 03:00:57,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:57,332 INFO L459 AbstractCegarLoop]: Abstraction has 450 states and 456 transitions. [2018-04-10 03:00:57,332 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-04-10 03:00:57,332 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 456 transitions. [2018-04-10 03:00:57,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2018-04-10 03:00:57,335 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:57,335 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] [2018-04-10 03:00:57,335 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]=== [2018-04-10 03:00:57,335 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 [2018-04-10 03:00:57,343 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:57,419 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:58,180 INFO L134 CoverageAnalysis]: Checked inductivity of 2445 backedges. 1058 proven. 100 refuted. 0 times theorem prover too weak. 1287 trivial. 0 not checked. [2018-04-10 03:00:58,180 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:58,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2445 backedges. 1058 proven. 100 refuted. 0 times theorem prover too weak. 1287 trivial. 0 not checked. [2018-04-10 03:00:58,562 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:00:58,563 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 40 [2018-04-10 03:00:58,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-04-10 03:00:58,564 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-04-10 03:00:58,564 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=1326, Unknown=0, NotChecked=0, Total=1560 [2018-04-10 03:00:58,564 INFO L87 Difference]: Start difference. First operand 450 states and 456 transitions. Second operand 40 states. [2018-04-10 03:00:59,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:00:59,229 INFO L93 Difference]: Finished difference Result 574 states and 584 transitions. [2018-04-10 03:00:59,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-04-10 03:00:59,230 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 350 [2018-04-10 03:00:59,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:00:59,232 INFO L225 Difference]: With dead ends: 574 [2018-04-10 03:00:59,232 INFO L226 Difference]: Without dead ends: 460 [2018-04-10 03:00:59,233 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 730 GetRequests, 647 SyntacticMatches, 15 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1703 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=835, Invalid=3995, Unknown=0, NotChecked=0, Total=4830 [2018-04-10 03:00:59,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2018-04-10 03:00:59,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 450. [2018-04-10 03:00:59,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2018-04-10 03:00:59,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 454 transitions. [2018-04-10 03:00:59,255 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 454 transitions. Word has length 350 [2018-04-10 03:00:59,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:00:59,256 INFO L459 AbstractCegarLoop]: Abstraction has 450 states and 454 transitions. [2018-04-10 03:00:59,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-04-10 03:00:59,256 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 454 transitions. [2018-04-10 03:00:59,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2018-04-10 03:00:59,258 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:00:59,259 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] [2018-04-10 03:00:59,259 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]=== [2018-04-10 03:00:59,259 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 [2018-04-10 03:00:59,273 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:00:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:00:59,374 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:00:59,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2639 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 2394 trivial. 0 not checked. [2018-04-10 03:00:59,586 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:00:59,874 INFO L134 CoverageAnalysis]: Checked inductivity of 2639 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 2394 trivial. 0 not checked. [2018-04-10 03:00:59,897 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:00:59,898 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2018-04-10 03:00:59,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-10 03:00:59,899 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-10 03:00:59,899 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2018-04-10 03:00:59,899 INFO L87 Difference]: Start difference. First operand 450 states and 454 transitions. Second operand 32 states. [2018-04-10 03:01:00,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:01:00,343 INFO L93 Difference]: Finished difference Result 572 states and 592 transitions. [2018-04-10 03:01:00,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-10 03:01:00,343 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 359 [2018-04-10 03:01:00,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:01:00,345 INFO L225 Difference]: With dead ends: 572 [2018-04-10 03:01:00,345 INFO L226 Difference]: Without dead ends: 552 [2018-04-10 03:01:00,346 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 745 GetRequests, 687 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1155, Invalid=2385, Unknown=0, NotChecked=0, Total=3540 [2018-04-10 03:01:00,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2018-04-10 03:01:00,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 535. [2018-04-10 03:01:00,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 535 states. [2018-04-10 03:01:00,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 546 transitions. [2018-04-10 03:01:00,366 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 546 transitions. Word has length 359 [2018-04-10 03:01:00,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:01:00,366 INFO L459 AbstractCegarLoop]: Abstraction has 535 states and 546 transitions. [2018-04-10 03:01:00,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-10 03:01:00,367 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 546 transitions. [2018-04-10 03:01:00,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2018-04-10 03:01:00,369 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:01:00,369 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] [2018-04-10 03:01:00,369 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]=== [2018-04-10 03:01:00,369 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 [2018-04-10 03:01:00,377 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:01:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:01:00,482 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:01:01,016 INFO L134 CoverageAnalysis]: Checked inductivity of 4403 backedges. 1743 proven. 266 refuted. 0 times theorem prover too weak. 2394 trivial. 0 not checked. [2018-04-10 03:01:01,016 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:01:01,657 INFO L134 CoverageAnalysis]: Checked inductivity of 4403 backedges. 1743 proven. 266 refuted. 0 times theorem prover too weak. 2394 trivial. 0 not checked. [2018-04-10 03:01:01,691 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:01:01,691 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 49 [2018-04-10 03:01:01,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-04-10 03:01:01,692 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-04-10 03:01:01,693 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=2031, Unknown=0, NotChecked=0, Total=2352 [2018-04-10 03:01:01,693 INFO L87 Difference]: Start difference. First operand 535 states and 546 transitions. Second operand 49 states. [2018-04-10 03:01:02,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:01:02,647 INFO L93 Difference]: Finished difference Result 801 states and 824 transitions. [2018-04-10 03:01:02,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-04-10 03:01:02,647 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 424 [2018-04-10 03:01:02,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:01:02,651 INFO L225 Difference]: With dead ends: 801 [2018-04-10 03:01:02,651 INFO L226 Difference]: Without dead ends: 619 [2018-04-10 03:01:02,654 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 884 GetRequests, 783 SyntacticMatches, 17 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1816 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1221, Invalid=6089, Unknown=0, NotChecked=0, Total=7310 [2018-04-10 03:01:02,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2018-04-10 03:01:02,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 608. [2018-04-10 03:01:02,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2018-04-10 03:01:02,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 619 transitions. [2018-04-10 03:01:02,684 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 619 transitions. Word has length 424 [2018-04-10 03:01:02,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:01:02,685 INFO L459 AbstractCegarLoop]: Abstraction has 608 states and 619 transitions. [2018-04-10 03:01:02,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-04-10 03:01:02,685 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 619 transitions. [2018-04-10 03:01:02,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2018-04-10 03:01:02,689 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:01:02,689 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] [2018-04-10 03:01:02,689 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]=== [2018-04-10 03:01:02,690 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 [2018-04-10 03:01:02,699 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:01:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:01:02,819 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:01:03,230 INFO L134 CoverageAnalysis]: Checked inductivity of 6379 backedges. 3614 proven. 147 refuted. 0 times theorem prover too weak. 2618 trivial. 0 not checked. [2018-04-10 03:01:03,230 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:01:03,842 INFO L134 CoverageAnalysis]: Checked inductivity of 6379 backedges. 3614 proven. 147 refuted. 0 times theorem prover too weak. 2618 trivial. 0 not checked. [2018-04-10 03:01:03,865 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:01:03,865 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 46 [2018-04-10 03:01:03,866 INFO L442 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-04-10 03:01:03,866 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-04-10 03:01:03,866 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=1770, Unknown=0, NotChecked=0, Total=2070 [2018-04-10 03:01:03,866 INFO L87 Difference]: Start difference. First operand 608 states and 619 transitions. Second operand 46 states. [2018-04-10 03:01:04,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:01:04,555 INFO L93 Difference]: Finished difference Result 810 states and 836 transitions. [2018-04-10 03:01:04,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-04-10 03:01:04,556 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 499 [2018-04-10 03:01:04,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:01:04,558 INFO L225 Difference]: With dead ends: 810 [2018-04-10 03:01:04,558 INFO L226 Difference]: Without dead ends: 622 [2018-04-10 03:01:04,560 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1033 GetRequests, 937 SyntacticMatches, 17 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2354 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1102, Invalid=5378, Unknown=0, NotChecked=0, Total=6480 [2018-04-10 03:01:04,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2018-04-10 03:01:04,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 608. [2018-04-10 03:01:04,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2018-04-10 03:01:04,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 617 transitions. [2018-04-10 03:01:04,607 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 617 transitions. Word has length 499 [2018-04-10 03:01:04,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:01:04,608 INFO L459 AbstractCegarLoop]: Abstraction has 608 states and 617 transitions. [2018-04-10 03:01:04,608 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-04-10 03:01:04,608 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 617 transitions. [2018-04-10 03:01:04,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2018-04-10 03:01:04,612 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:01:04,612 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] [2018-04-10 03:01:04,612 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]=== [2018-04-10 03:01:04,612 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 [2018-04-10 03:01:04,621 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:01:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:01:04,766 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:01:05,032 INFO L134 CoverageAnalysis]: Checked inductivity of 6704 backedges. 1976 proven. 210 refuted. 0 times theorem prover too weak. 4518 trivial. 0 not checked. [2018-04-10 03:01:05,032 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:01:05,433 INFO L134 CoverageAnalysis]: Checked inductivity of 6704 backedges. 1976 proven. 210 refuted. 0 times theorem prover too weak. 4518 trivial. 0 not checked. [2018-04-10 03:01:05,456 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:01:05,456 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2018-04-10 03:01:05,456 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-10 03:01:05,457 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-10 03:01:05,457 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=818, Unknown=0, NotChecked=0, Total=992 [2018-04-10 03:01:05,457 INFO L87 Difference]: Start difference. First operand 608 states and 617 transitions. Second operand 32 states. [2018-04-10 03:01:06,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:01:06,733 INFO L93 Difference]: Finished difference Result 717 states and 789 transitions. [2018-04-10 03:01:06,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-10 03:01:06,734 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 508 [2018-04-10 03:01:06,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:01:06,738 INFO L225 Difference]: With dead ends: 717 [2018-04-10 03:01:06,739 INFO L226 Difference]: Without dead ends: 716 [2018-04-10 03:01:06,740 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1051 GetRequests, 993 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=862, Invalid=2678, Unknown=0, NotChecked=0, Total=3540 [2018-04-10 03:01:06,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2018-04-10 03:01:06,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 679. [2018-04-10 03:01:06,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 679 states. [2018-04-10 03:01:06,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 703 transitions. [2018-04-10 03:01:06,772 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 703 transitions. Word has length 508 [2018-04-10 03:01:06,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:01:06,773 INFO L459 AbstractCegarLoop]: Abstraction has 679 states and 703 transitions. [2018-04-10 03:01:06,773 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-10 03:01:06,773 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 703 transitions. [2018-04-10 03:01:06,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2018-04-10 03:01:06,777 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:01:06,778 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] [2018-04-10 03:01:06,778 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]=== [2018-04-10 03:01:06,778 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 [2018-04-10 03:01:06,787 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:01:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:01:06,935 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:01:06,939 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 [2018-04-10 03:01:06,940 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 03:01:06,965 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 03:01:06,965 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-10 03:01:08,057 INFO L134 CoverageAnalysis]: Checked inductivity of 6739 backedges. 2044 proven. 233 refuted. 0 times theorem prover too weak. 4462 trivial. 0 not checked. [2018-04-10 03:01:08,057 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:01:08,735 INFO L134 CoverageAnalysis]: Checked inductivity of 6739 backedges. 2044 proven. 233 refuted. 0 times theorem prover too weak. 4462 trivial. 0 not checked. [2018-04-10 03:01:08,758 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:01:08,758 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20] total 40 [2018-04-10 03:01:08,759 INFO L442 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-04-10 03:01:08,759 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-04-10 03:01:08,759 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=1395, Unknown=0, NotChecked=0, Total=1640 [2018-04-10 03:01:08,759 INFO L87 Difference]: Start difference. First operand 679 states and 703 transitions. Second operand 41 states. [2018-04-10 03:01:10,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:01:10,778 INFO L93 Difference]: Finished difference Result 708 states and 780 transitions. [2018-04-10 03:01:10,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-10 03:01:10,779 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 509 [2018-04-10 03:01:10,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:01:10,781 INFO L225 Difference]: With dead ends: 708 [2018-04-10 03:01:10,781 INFO L226 Difference]: Without dead ends: 707 [2018-04-10 03:01:10,782 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1050 GetRequests, 964 SyntacticMatches, 15 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 989 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1171, Invalid=4085, Unknown=0, NotChecked=0, Total=5256 [2018-04-10 03:01:10,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2018-04-10 03:01:10,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 680. [2018-04-10 03:01:10,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 680 states. [2018-04-10 03:01:10,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 697 transitions. [2018-04-10 03:01:10,805 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 697 transitions. Word has length 509 [2018-04-10 03:01:10,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:01:10,805 INFO L459 AbstractCegarLoop]: Abstraction has 680 states and 697 transitions. [2018-04-10 03:01:10,805 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-04-10 03:01:10,805 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 697 transitions. [2018-04-10 03:01:10,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2018-04-10 03:01:10,808 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:01:10,808 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] [2018-04-10 03:01:10,808 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]=== [2018-04-10 03:01:10,809 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 [2018-04-10 03:01:10,824 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:01:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:01:10,965 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:01:11,737 INFO L134 CoverageAnalysis]: Checked inductivity of 9628 backedges. 4954 proven. 348 refuted. 0 times theorem prover too weak. 4326 trivial. 0 not checked. [2018-04-10 03:01:11,737 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:01:12,312 INFO L134 CoverageAnalysis]: Checked inductivity of 9628 backedges. 4954 proven. 348 refuted. 0 times theorem prover too weak. 4326 trivial. 0 not checked. [2018-04-10 03:01:12,336 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:01:12,337 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 55 [2018-04-10 03:01:12,337 INFO L442 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-04-10 03:01:12,338 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-04-10 03:01:12,338 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=2573, Unknown=0, NotChecked=0, Total=2970 [2018-04-10 03:01:12,338 INFO L87 Difference]: Start difference. First operand 680 states and 697 transitions. Second operand 55 states. [2018-04-10 03:01:13,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:01:13,605 INFO L93 Difference]: Finished difference Result 1016 states and 1051 transitions. [2018-04-10 03:01:13,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-04-10 03:01:13,606 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 580 [2018-04-10 03:01:13,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:01:13,609 INFO L225 Difference]: With dead ends: 1016 [2018-04-10 03:01:13,610 INFO L226 Difference]: Without dead ends: 773 [2018-04-10 03:01:13,613 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1201 GetRequests, 1087 SyntacticMatches, 19 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2356 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1536, Invalid=7776, Unknown=0, NotChecked=0, Total=9312 [2018-04-10 03:01:13,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2018-04-10 03:01:13,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 762. [2018-04-10 03:01:13,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-04-10 03:01:13,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 779 transitions. [2018-04-10 03:01:13,645 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 779 transitions. Word has length 580 [2018-04-10 03:01:13,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:01:13,646 INFO L459 AbstractCegarLoop]: Abstraction has 762 states and 779 transitions. [2018-04-10 03:01:13,646 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-04-10 03:01:13,646 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 779 transitions. [2018-04-10 03:01:13,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2018-04-10 03:01:13,652 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:01:13,652 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] [2018-04-10 03:01:13,652 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]=== [2018-04-10 03:01:13,652 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 [2018-04-10 03:01:13,659 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:01:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:01:13,770 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:01:14,424 INFO L134 CoverageAnalysis]: Checked inductivity of 12939 backedges. 7600 proven. 203 refuted. 0 times theorem prover too weak. 5136 trivial. 0 not checked. [2018-04-10 03:01:14,425 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:01:15,060 INFO L134 CoverageAnalysis]: Checked inductivity of 12939 backedges. 7600 proven. 203 refuted. 0 times theorem prover too weak. 5136 trivial. 0 not checked. [2018-04-10 03:01:15,083 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:01:15,084 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 52 [2018-04-10 03:01:15,085 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-04-10 03:01:15,085 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-04-10 03:01:15,085 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=374, Invalid=2278, Unknown=0, NotChecked=0, Total=2652 [2018-04-10 03:01:15,086 INFO L87 Difference]: Start difference. First operand 762 states and 779 transitions. Second operand 52 states. [2018-04-10 03:01:16,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:01:16,121 INFO L93 Difference]: Finished difference Result 1021 states and 1058 transitions. [2018-04-10 03:01:16,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-04-10 03:01:16,121 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 664 [2018-04-10 03:01:16,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:01:16,124 INFO L225 Difference]: With dead ends: 1021 [2018-04-10 03:01:16,125 INFO L226 Difference]: Without dead ends: 772 [2018-04-10 03:01:16,126 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1368 GetRequests, 1259 SyntacticMatches, 19 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3110 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1406, Invalid=6966, Unknown=0, NotChecked=0, Total=8372 [2018-04-10 03:01:16,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2018-04-10 03:01:16,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 762. [2018-04-10 03:01:16,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-04-10 03:01:16,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 777 transitions. [2018-04-10 03:01:16,148 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 777 transitions. Word has length 664 [2018-04-10 03:01:16,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:01:16,149 INFO L459 AbstractCegarLoop]: Abstraction has 762 states and 777 transitions. [2018-04-10 03:01:16,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-04-10 03:01:16,149 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 777 transitions. [2018-04-10 03:01:16,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2018-04-10 03:01:16,155 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:01:16,156 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] [2018-04-10 03:01:16,156 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]=== [2018-04-10 03:01:16,156 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 [2018-04-10 03:01:16,165 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:01:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:01:16,332 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:01:17,073 INFO L134 CoverageAnalysis]: Checked inductivity of 13410 backedges. 6150 proven. 441 refuted. 0 times theorem prover too weak. 6819 trivial. 0 not checked. [2018-04-10 03:01:17,074 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:01:17,755 INFO L134 CoverageAnalysis]: Checked inductivity of 13410 backedges. 6150 proven. 441 refuted. 0 times theorem prover too weak. 6819 trivial. 0 not checked. [2018-04-10 03:01:17,778 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:01:17,779 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 61 [2018-04-10 03:01:17,779 INFO L442 AbstractCegarLoop]: Interpolant automaton has 61 states [2018-04-10 03:01:17,780 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2018-04-10 03:01:17,780 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=481, Invalid=3179, Unknown=0, NotChecked=0, Total=3660 [2018-04-10 03:01:17,780 INFO L87 Difference]: Start difference. First operand 762 states and 777 transitions. Second operand 61 states. [2018-04-10 03:01:19,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:01:19,277 INFO L93 Difference]: Finished difference Result 1096 states and 1127 transitions. [2018-04-10 03:01:19,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-04-10 03:01:19,278 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 673 [2018-04-10 03:01:19,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:01:19,280 INFO L225 Difference]: With dead ends: 1096 [2018-04-10 03:01:19,280 INFO L226 Difference]: Without dead ends: 864 [2018-04-10 03:01:19,284 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1392 GetRequests, 1265 SyntacticMatches, 21 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2966 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1887, Invalid=9669, Unknown=0, NotChecked=0, Total=11556 [2018-04-10 03:01:19,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2018-04-10 03:01:19,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 853. [2018-04-10 03:01:19,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 853 states. [2018-04-10 03:01:19,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 868 transitions. [2018-04-10 03:01:19,317 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 868 transitions. Word has length 673 [2018-04-10 03:01:19,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:01:19,318 INFO L459 AbstractCegarLoop]: Abstraction has 853 states and 868 transitions. [2018-04-10 03:01:19,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 61 states. [2018-04-10 03:01:19,318 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 868 transitions. [2018-04-10 03:01:19,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 767 [2018-04-10 03:01:19,324 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:01:19,325 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] [2018-04-10 03:01:19,325 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]=== [2018-04-10 03:01:19,325 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 [2018-04-10 03:01:19,335 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:01:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:01:19,475 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:01:20,117 INFO L134 CoverageAnalysis]: Checked inductivity of 17821 backedges. 9867 proven. 268 refuted. 0 times theorem prover too weak. 7686 trivial. 0 not checked. [2018-04-10 03:01:20,117 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:01:20,913 INFO L134 CoverageAnalysis]: Checked inductivity of 17821 backedges. 9867 proven. 268 refuted. 0 times theorem prover too weak. 7686 trivial. 0 not checked. [2018-04-10 03:01:20,936 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:01:20,937 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 58 [2018-04-10 03:01:20,938 INFO L442 AbstractCegarLoop]: Interpolant automaton has 58 states [2018-04-10 03:01:20,938 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2018-04-10 03:01:20,939 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=456, Invalid=2850, Unknown=0, NotChecked=0, Total=3306 [2018-04-10 03:01:20,939 INFO L87 Difference]: Start difference. First operand 853 states and 868 transitions. Second operand 58 states. [2018-04-10 03:01:22,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:01:22,208 INFO L93 Difference]: Finished difference Result 1101 states and 1133 transitions. [2018-04-10 03:01:22,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-04-10 03:01:22,209 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 766 [2018-04-10 03:01:22,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:01:22,212 INFO L225 Difference]: With dead ends: 1101 [2018-04-10 03:01:22,213 INFO L226 Difference]: Without dead ends: 863 [2018-04-10 03:01:22,216 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1577 GetRequests, 1455 SyntacticMatches, 21 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3971 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1747, Invalid=8759, Unknown=0, NotChecked=0, Total=10506 [2018-04-10 03:01:22,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2018-04-10 03:01:22,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 853. [2018-04-10 03:01:22,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 853 states. [2018-04-10 03:01:22,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 866 transitions. [2018-04-10 03:01:22,245 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 866 transitions. Word has length 766 [2018-04-10 03:01:22,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:01:22,246 INFO L459 AbstractCegarLoop]: Abstraction has 853 states and 866 transitions. [2018-04-10 03:01:22,246 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states. [2018-04-10 03:01:22,246 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 866 transitions. [2018-04-10 03:01:22,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 776 [2018-04-10 03:01:22,266 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:01:22,266 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] [2018-04-10 03:01:22,266 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]=== [2018-04-10 03:01:22,271 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 [2018-04-10 03:01:22,280 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:01:22,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:01:22,437 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:01:23,267 INFO L134 CoverageAnalysis]: Checked inductivity of 18375 backedges. 7475 proven. 545 refuted. 0 times theorem prover too weak. 10355 trivial. 0 not checked. [2018-04-10 03:01:23,267 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:01:24,098 INFO L134 CoverageAnalysis]: Checked inductivity of 18375 backedges. 7475 proven. 545 refuted. 0 times theorem prover too weak. 10355 trivial. 0 not checked. [2018-04-10 03:01:24,121 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:01:24,122 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 67 [2018-04-10 03:01:24,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 67 states [2018-04-10 03:01:24,122 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2018-04-10 03:01:24,123 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=573, Invalid=3849, Unknown=0, NotChecked=0, Total=4422 [2018-04-10 03:01:24,123 INFO L87 Difference]: Start difference. First operand 853 states and 866 transitions. Second operand 67 states. [2018-04-10 03:01:25,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:01:25,682 INFO L93 Difference]: Finished difference Result 1185 states and 1212 transitions. [2018-04-10 03:01:25,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2018-04-10 03:01:25,682 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 775 [2018-04-10 03:01:25,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:01:25,684 INFO L225 Difference]: With dead ends: 1185 [2018-04-10 03:01:25,685 INFO L226 Difference]: Without dead ends: 964 [2018-04-10 03:01:25,686 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1601 GetRequests, 1461 SyntacticMatches, 23 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3646 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2274, Invalid=11768, Unknown=0, NotChecked=0, Total=14042 [2018-04-10 03:01:25,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2018-04-10 03:01:25,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 953. [2018-04-10 03:01:25,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 953 states. [2018-04-10 03:01:25,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 966 transitions. [2018-04-10 03:01:25,708 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 966 transitions. Word has length 775 [2018-04-10 03:01:25,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:01:25,708 INFO L459 AbstractCegarLoop]: Abstraction has 953 states and 966 transitions. [2018-04-10 03:01:25,708 INFO L460 AbstractCegarLoop]: Interpolant automaton has 67 states. [2018-04-10 03:01:25,709 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 966 transitions. [2018-04-10 03:01:25,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 878 [2018-04-10 03:01:25,714 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:01:25,714 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] [2018-04-10 03:01:25,714 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]=== [2018-04-10 03:01:25,715 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 [2018-04-10 03:01:25,720 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:01:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:01:25,863 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:01:26,637 INFO L134 CoverageAnalysis]: Checked inductivity of 24126 backedges. 12514 proven. 342 refuted. 0 times theorem prover too weak. 11270 trivial. 0 not checked. [2018-04-10 03:01:26,637 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:01:27,602 INFO L134 CoverageAnalysis]: Checked inductivity of 24126 backedges. 12514 proven. 342 refuted. 0 times theorem prover too weak. 11270 trivial. 0 not checked. [2018-04-10 03:01:27,625 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:01:27,626 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 64 [2018-04-10 03:01:27,626 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-04-10 03:01:27,627 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-04-10 03:01:27,627 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=546, Invalid=3486, Unknown=0, NotChecked=0, Total=4032 [2018-04-10 03:01:27,627 INFO L87 Difference]: Start difference. First operand 953 states and 966 transitions. Second operand 64 states. [2018-04-10 03:01:28,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:01:28,795 INFO L93 Difference]: Finished difference Result 1190 states and 1217 transitions. [2018-04-10 03:01:28,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-04-10 03:01:28,795 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 877 [2018-04-10 03:01:28,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:01:28,797 INFO L225 Difference]: With dead ends: 1190 [2018-04-10 03:01:28,798 INFO L226 Difference]: Without dead ends: 963 [2018-04-10 03:01:28,799 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1804 GetRequests, 1669 SyntacticMatches, 23 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4937 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2125, Invalid=10757, Unknown=0, NotChecked=0, Total=12882 [2018-04-10 03:01:28,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2018-04-10 03:01:28,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 953. [2018-04-10 03:01:28,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 953 states. [2018-04-10 03:01:28,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 964 transitions. [2018-04-10 03:01:28,820 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 964 transitions. Word has length 877 [2018-04-10 03:01:28,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:01:28,820 INFO L459 AbstractCegarLoop]: Abstraction has 953 states and 964 transitions. [2018-04-10 03:01:28,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-04-10 03:01:28,820 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 964 transitions. [2018-04-10 03:01:28,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 887 [2018-04-10 03:01:28,825 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:01:28,826 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] [2018-04-10 03:01:28,826 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]=== [2018-04-10 03:01:28,826 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 [2018-04-10 03:01:28,832 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:01:28,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:01:28,972 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:01:29,839 INFO L134 CoverageAnalysis]: Checked inductivity of 24772 backedges. 8929 proven. 660 refuted. 0 times theorem prover too weak. 15183 trivial. 0 not checked. [2018-04-10 03:01:29,839 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:01:30,910 INFO L134 CoverageAnalysis]: Checked inductivity of 24772 backedges. 8929 proven. 660 refuted. 0 times theorem prover too weak. 15183 trivial. 0 not checked. [2018-04-10 03:01:30,932 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:01:30,932 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 73 [2018-04-10 03:01:30,933 INFO L442 AbstractCegarLoop]: Interpolant automaton has 73 states [2018-04-10 03:01:30,933 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2018-04-10 03:01:30,933 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=673, Invalid=4583, Unknown=0, NotChecked=0, Total=5256 [2018-04-10 03:01:30,933 INFO L87 Difference]: Start difference. First operand 953 states and 964 transitions. Second operand 73 states. [2018-04-10 03:01:33,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:01:33,215 INFO L93 Difference]: Finished difference Result 1283 states and 1306 transitions. [2018-04-10 03:01:33,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-04-10 03:01:33,215 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 886 [2018-04-10 03:01:33,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:01:33,218 INFO L225 Difference]: With dead ends: 1283 [2018-04-10 03:01:33,218 INFO L226 Difference]: Without dead ends: 1073 [2018-04-10 03:01:33,219 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1828 GetRequests, 1675 SyntacticMatches, 25 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4396 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=2697, Invalid=14073, Unknown=0, NotChecked=0, Total=16770 [2018-04-10 03:01:33,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2018-04-10 03:01:33,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1062. [2018-04-10 03:01:33,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1062 states. [2018-04-10 03:01:33,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1073 transitions. [2018-04-10 03:01:33,242 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1073 transitions. Word has length 886 [2018-04-10 03:01:33,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:01:33,243 INFO L459 AbstractCegarLoop]: Abstraction has 1062 states and 1073 transitions. [2018-04-10 03:01:33,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 73 states. [2018-04-10 03:01:33,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1073 transitions. [2018-04-10 03:01:33,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 998 [2018-04-10 03:01:33,249 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:01:33,249 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] [2018-04-10 03:01:33,249 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]=== [2018-04-10 03:01:33,250 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 [2018-04-10 03:01:33,256 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:01:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:01:33,411 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:01:34,591 INFO L134 CoverageAnalysis]: Checked inductivity of 32130 backedges. 15568 proven. 425 refuted. 0 times theorem prover too weak. 16137 trivial. 0 not checked. [2018-04-10 03:01:34,592 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:01:35,967 INFO L134 CoverageAnalysis]: Checked inductivity of 32130 backedges. 15568 proven. 425 refuted. 0 times theorem prover too weak. 16137 trivial. 0 not checked. [2018-04-10 03:01:36,002 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:01:36,003 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 70 [2018-04-10 03:01:36,004 INFO L442 AbstractCegarLoop]: Interpolant automaton has 70 states [2018-04-10 03:01:36,004 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2018-04-10 03:01:36,004 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=644, Invalid=4186, Unknown=0, NotChecked=0, Total=4830 [2018-04-10 03:01:36,004 INFO L87 Difference]: Start difference. First operand 1062 states and 1073 transitions. Second operand 70 states. [2018-04-10 03:01:37,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:01:37,424 INFO L93 Difference]: Finished difference Result 1288 states and 1310 transitions. [2018-04-10 03:01:37,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2018-04-10 03:01:37,425 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 997 [2018-04-10 03:01:37,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:01:37,430 INFO L225 Difference]: With dead ends: 1288 [2018-04-10 03:01:37,430 INFO L226 Difference]: Without dead ends: 1072 [2018-04-10 03:01:37,432 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2049 GetRequests, 1901 SyntacticMatches, 25 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6008 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2540, Invalid=12960, Unknown=0, NotChecked=0, Total=15500 [2018-04-10 03:01:37,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2018-04-10 03:01:37,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1062. [2018-04-10 03:01:37,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1062 states. [2018-04-10 03:01:37,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1071 transitions. [2018-04-10 03:01:37,466 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1071 transitions. Word has length 997 [2018-04-10 03:01:37,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:01:37,466 INFO L459 AbstractCegarLoop]: Abstraction has 1062 states and 1071 transitions. [2018-04-10 03:01:37,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 70 states. [2018-04-10 03:01:37,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1071 transitions. [2018-04-10 03:01:37,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1007 [2018-04-10 03:01:37,472 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:01:37,473 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] [2018-04-10 03:01:37,473 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]=== [2018-04-10 03:01:37,473 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 [2018-04-10 03:01:37,479 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:01:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:01:37,675 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:01:38,850 INFO L134 CoverageAnalysis]: Checked inductivity of 32877 backedges. 10512 proven. 786 refuted. 0 times theorem prover too weak. 21579 trivial. 0 not checked. [2018-04-10 03:01:38,850 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:01:40,318 INFO L134 CoverageAnalysis]: Checked inductivity of 32877 backedges. 10512 proven. 786 refuted. 0 times theorem prover too weak. 21579 trivial. 0 not checked. [2018-04-10 03:01:40,353 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:01:40,353 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 79 [2018-04-10 03:01:40,354 INFO L442 AbstractCegarLoop]: Interpolant automaton has 79 states [2018-04-10 03:01:40,354 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2018-04-10 03:01:40,354 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=781, Invalid=5381, Unknown=0, NotChecked=0, Total=6162 [2018-04-10 03:01:40,355 INFO L87 Difference]: Start difference. First operand 1062 states and 1071 transitions. Second operand 79 states. [2018-04-10 03:01:42,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:01:42,734 INFO L93 Difference]: Finished difference Result 1390 states and 1409 transitions. [2018-04-10 03:01:42,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-04-10 03:01:42,735 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 1006 [2018-04-10 03:01:42,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:01:42,738 INFO L225 Difference]: With dead ends: 1390 [2018-04-10 03:01:42,738 INFO L226 Difference]: Without dead ends: 1191 [2018-04-10 03:01:42,739 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2073 GetRequests, 1907 SyntacticMatches, 27 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5216 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=3156, Invalid=16584, Unknown=0, NotChecked=0, Total=19740 [2018-04-10 03:01:42,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2018-04-10 03:01:42,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 1180. [2018-04-10 03:01:42,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1180 states. [2018-04-10 03:01:42,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1189 transitions. [2018-04-10 03:01:42,764 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1189 transitions. Word has length 1006 [2018-04-10 03:01:42,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:01:42,765 INFO L459 AbstractCegarLoop]: Abstraction has 1180 states and 1189 transitions. [2018-04-10 03:01:42,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 79 states. [2018-04-10 03:01:42,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1189 transitions. [2018-04-10 03:01:42,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1127 [2018-04-10 03:01:42,772 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:01:42,772 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] [2018-04-10 03:01:42,772 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]=== [2018-04-10 03:01:42,772 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 [2018-04-10 03:01:42,784 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:01:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:01:42,960 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:01:44,393 INFO L134 CoverageAnalysis]: Checked inductivity of 42136 backedges. 19056 proven. 517 refuted. 0 times theorem prover too weak. 22563 trivial. 0 not checked. [2018-04-10 03:01:44,393 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:01:45,840 INFO L134 CoverageAnalysis]: Checked inductivity of 42136 backedges. 19056 proven. 517 refuted. 0 times theorem prover too weak. 22563 trivial. 0 not checked. [2018-04-10 03:01:45,862 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:01:45,863 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 76 [2018-04-10 03:01:45,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 76 states [2018-04-10 03:01:45,864 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2018-04-10 03:01:45,865 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=750, Invalid=4950, Unknown=0, NotChecked=0, Total=5700 [2018-04-10 03:01:45,865 INFO L87 Difference]: Start difference. First operand 1180 states and 1189 transitions. Second operand 76 states. [2018-04-10 03:01:47,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:01:47,460 INFO L93 Difference]: Finished difference Result 1395 states and 1412 transitions. [2018-04-10 03:01:47,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2018-04-10 03:01:47,460 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 1126 [2018-04-10 03:01:47,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:01:47,464 INFO L225 Difference]: With dead ends: 1395 [2018-04-10 03:01:47,465 INFO L226 Difference]: Without dead ends: 1190 [2018-04-10 03:01:47,466 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2312 GetRequests, 2151 SyntacticMatches, 27 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7184 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2992, Invalid=15368, Unknown=0, NotChecked=0, Total=18360 [2018-04-10 03:01:47,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2018-04-10 03:01:47,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 1180. [2018-04-10 03:01:47,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1180 states. [2018-04-10 03:01:47,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1187 transitions. [2018-04-10 03:01:47,498 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1187 transitions. Word has length 1126 [2018-04-10 03:01:47,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:01:47,499 INFO L459 AbstractCegarLoop]: Abstraction has 1180 states and 1187 transitions. [2018-04-10 03:01:47,499 INFO L460 AbstractCegarLoop]: Interpolant automaton has 76 states. [2018-04-10 03:01:47,499 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1187 transitions. [2018-04-10 03:01:47,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1136 [2018-04-10 03:01:47,507 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:01:47,507 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] [2018-04-10 03:01:47,507 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]=== [2018-04-10 03:01:47,507 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 [2018-04-10 03:01:47,518 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:01:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:01:47,703 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:01:48,977 INFO L134 CoverageAnalysis]: Checked inductivity of 42993 backedges. 12224 proven. 923 refuted. 0 times theorem prover too weak. 29846 trivial. 0 not checked. [2018-04-10 03:01:48,977 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:01:50,840 INFO L134 CoverageAnalysis]: Checked inductivity of 42993 backedges. 12224 proven. 923 refuted. 0 times theorem prover too weak. 29846 trivial. 0 not checked. [2018-04-10 03:01:50,877 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:01:50,877 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 85 [2018-04-10 03:01:50,878 INFO L442 AbstractCegarLoop]: Interpolant automaton has 85 states [2018-04-10 03:01:50,878 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2018-04-10 03:01:50,879 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=897, Invalid=6243, Unknown=0, NotChecked=0, Total=7140 [2018-04-10 03:01:50,879 INFO L87 Difference]: Start difference. First operand 1180 states and 1187 transitions. Second operand 85 states. [2018-04-10 03:01:53,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:01:53,463 INFO L93 Difference]: Finished difference Result 1506 states and 1521 transitions. [2018-04-10 03:01:53,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2018-04-10 03:01:53,465 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 1135 [2018-04-10 03:01:53,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:01:53,469 INFO L225 Difference]: With dead ends: 1506 [2018-04-10 03:01:53,469 INFO L226 Difference]: Without dead ends: 1318 [2018-04-10 03:01:53,471 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2336 GetRequests, 2157 SyntacticMatches, 29 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6106 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=3651, Invalid=19301, Unknown=0, NotChecked=0, Total=22952 [2018-04-10 03:01:53,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2018-04-10 03:01:53,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1307. [2018-04-10 03:01:53,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1307 states. [2018-04-10 03:01:53,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1314 transitions. [2018-04-10 03:01:53,498 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1314 transitions. Word has length 1135 [2018-04-10 03:01:53,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:01:53,499 INFO L459 AbstractCegarLoop]: Abstraction has 1307 states and 1314 transitions. [2018-04-10 03:01:53,499 INFO L460 AbstractCegarLoop]: Interpolant automaton has 85 states. [2018-04-10 03:01:53,499 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1314 transitions. [2018-04-10 03:01:53,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1257 [2018-04-10 03:01:53,507 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:01:53,507 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] [2018-04-10 03:01:53,508 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]=== [2018-04-10 03:01:53,508 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 [2018-04-10 03:01:53,517 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:01:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:01:53,747 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:01:55,441 INFO L134 CoverageAnalysis]: Checked inductivity of 51654 backedges. 20549 proven. 618 refuted. 0 times theorem prover too weak. 30487 trivial. 0 not checked. [2018-04-10 03:01:55,441 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:01:57,079 INFO L134 CoverageAnalysis]: Checked inductivity of 51654 backedges. 10173 proven. 1970 refuted. 0 times theorem prover too weak. 39511 trivial. 0 not checked. [2018-04-10 03:01:57,101 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:01:57,102 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56] total 82 [2018-04-10 03:01:57,104 INFO L442 AbstractCegarLoop]: Interpolant automaton has 82 states [2018-04-10 03:01:57,104 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2018-04-10 03:01:57,104 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=864, Invalid=5778, Unknown=0, NotChecked=0, Total=6642 [2018-04-10 03:01:57,104 INFO L87 Difference]: Start difference. First operand 1307 states and 1314 transitions. Second operand 82 states. [2018-04-10 03:01:58,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:01:58,782 INFO L93 Difference]: Finished difference Result 1511 states and 1523 transitions. [2018-04-10 03:01:58,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2018-04-10 03:01:58,783 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 1256 [2018-04-10 03:01:58,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:01:58,786 INFO L225 Difference]: With dead ends: 1511 [2018-04-10 03:01:58,786 INFO L226 Difference]: Without dead ends: 1317 [2018-04-10 03:01:58,788 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2577 GetRequests, 2403 SyntacticMatches, 29 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8465 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=3481, Invalid=17981, Unknown=0, NotChecked=0, Total=21462 [2018-04-10 03:01:58,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2018-04-10 03:01:58,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1307. [2018-04-10 03:01:58,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1307 states. [2018-04-10 03:01:58,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1312 transitions. [2018-04-10 03:01:58,814 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1312 transitions. Word has length 1256 [2018-04-10 03:01:58,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:01:58,815 INFO L459 AbstractCegarLoop]: Abstraction has 1307 states and 1312 transitions. [2018-04-10 03:01:58,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 82 states. [2018-04-10 03:01:58,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1312 transitions. [2018-04-10 03:01:58,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1274 [2018-04-10 03:01:58,823 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:01:58,824 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] [2018-04-10 03:01:58,824 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]=== [2018-04-10 03:01:58,824 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 [2018-04-10 03:01:58,832 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:01:59,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:01:59,052 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:02:00,506 INFO L134 CoverageAnalysis]: Checked inductivity of 55450 backedges. 14065 proven. 1071 refuted. 0 times theorem prover too weak. 40314 trivial. 0 not checked. [2018-04-10 03:02:00,507 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:02:02,367 INFO L134 CoverageAnalysis]: Checked inductivity of 55450 backedges. 14065 proven. 1071 refuted. 0 times theorem prover too weak. 40314 trivial. 0 not checked. [2018-04-10 03:02:02,400 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:02:02,401 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62] total 91 [2018-04-10 03:02:02,402 INFO L442 AbstractCegarLoop]: Interpolant automaton has 91 states [2018-04-10 03:02:02,402 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2018-04-10 03:02:02,403 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1021, Invalid=7169, Unknown=0, NotChecked=0, Total=8190 [2018-04-10 03:02:02,403 INFO L87 Difference]: Start difference. First operand 1307 states and 1312 transitions. Second operand 91 states. [2018-04-10 03:02:05,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:02:05,594 INFO L93 Difference]: Finished difference Result 1642 states and 1655 transitions. [2018-04-10 03:02:05,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2018-04-10 03:02:05,595 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 1273 [2018-04-10 03:02:05,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:02:05,598 INFO L225 Difference]: With dead ends: 1642 [2018-04-10 03:02:05,598 INFO L226 Difference]: Without dead ends: 1462 [2018-04-10 03:02:05,600 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2617 GetRequests, 2425 SyntacticMatches, 31 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7066 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=4182, Invalid=22224, Unknown=0, NotChecked=0, Total=26406 [2018-04-10 03:02:05,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2018-04-10 03:02:05,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1446. [2018-04-10 03:02:05,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1446 states. [2018-04-10 03:02:05,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 1452 transitions. [2018-04-10 03:02:05,630 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 1452 transitions. Word has length 1273 [2018-04-10 03:02:05,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:02:05,630 INFO L459 AbstractCegarLoop]: Abstraction has 1446 states and 1452 transitions. [2018-04-10 03:02:05,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 91 states. [2018-04-10 03:02:05,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 1452 transitions. [2018-04-10 03:02:05,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1275 [2018-04-10 03:02:05,638 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:02:05,639 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] [2018-04-10 03:02:05,639 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]=== [2018-04-10 03:02:05,639 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 [2018-04-10 03:02:05,645 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:02:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:02:05,842 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:02:07,288 INFO L134 CoverageAnalysis]: Checked inductivity of 53559 backedges. 12490 proven. 728 refuted. 0 times theorem prover too weak. 40341 trivial. 0 not checked. [2018-04-10 03:02:07,288 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:02:07,417 WARN L148 SmtUtils]: Spent 125ms on a formula simplification that was a NOOP. DAG size: 75 [2018-04-10 03:02:09,472 INFO L134 CoverageAnalysis]: Checked inductivity of 53559 backedges. 12490 proven. 728 refuted. 0 times theorem prover too weak. 40341 trivial. 0 not checked. [2018-04-10 03:02:09,495 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:02:09,496 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 60] total 88 [2018-04-10 03:02:09,497 INFO L442 AbstractCegarLoop]: Interpolant automaton has 88 states [2018-04-10 03:02:09,497 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2018-04-10 03:02:09,497 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=986, Invalid=6670, Unknown=0, NotChecked=0, Total=7656 [2018-04-10 03:02:09,497 INFO L87 Difference]: Start difference. First operand 1446 states and 1452 transitions. Second operand 88 states. [2018-04-10 03:02:11,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:02:11,293 INFO L93 Difference]: Finished difference Result 1642 states and 1652 transitions. [2018-04-10 03:02:11,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2018-04-10 03:02:11,293 INFO L78 Accepts]: Start accepts. Automaton has 88 states. Word has length 1274 [2018-04-10 03:02:11,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:02:11,297 INFO L225 Difference]: With dead ends: 1642 [2018-04-10 03:02:11,297 INFO L226 Difference]: Without dead ends: 1456 [2018-04-10 03:02:11,299 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2618 GetRequests, 2431 SyntacticMatches, 31 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9851 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=4007, Invalid=20799, Unknown=0, NotChecked=0, Total=24806 [2018-04-10 03:02:11,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2018-04-10 03:02:11,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1446. [2018-04-10 03:02:11,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1446 states. [2018-04-10 03:02:11,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 1450 transitions. [2018-04-10 03:02:11,329 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 1450 transitions. Word has length 1274 [2018-04-10 03:02:11,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:02:11,329 INFO L459 AbstractCegarLoop]: Abstraction has 1446 states and 1450 transitions. [2018-04-10 03:02:11,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 88 states. [2018-04-10 03:02:11,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 1450 transitions. [2018-04-10 03:02:11,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1284 [2018-04-10 03:02:11,337 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:02:11,338 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] [2018-04-10 03:02:11,338 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]=== [2018-04-10 03:02:11,338 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 [2018-04-10 03:02:11,344 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:02:11,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:02:11,603 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:02:12,347 INFO L134 CoverageAnalysis]: Checked inductivity of 54525 backedges. 0 proven. 1185 refuted. 0 times theorem prover too weak. 53340 trivial. 0 not checked. [2018-04-10 03:02:12,348 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:02:13,555 INFO L134 CoverageAnalysis]: Checked inductivity of 54525 backedges. 0 proven. 1185 refuted. 0 times theorem prover too weak. 53340 trivial. 0 not checked. [2018-04-10 03:02:13,591 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:02:13,592 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 64 [2018-04-10 03:02:13,593 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-04-10 03:02:13,593 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-04-10 03:02:13,593 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1056, Invalid=2976, Unknown=0, NotChecked=0, Total=4032 [2018-04-10 03:02:13,593 INFO L87 Difference]: Start difference. First operand 1446 states and 1450 transitions. Second operand 64 states. [2018-04-10 03:02:15,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:02:15,578 INFO L93 Difference]: Finished difference Result 1656 states and 1692 transitions. [2018-04-10 03:02:15,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2018-04-10 03:02:15,624 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 1283 [2018-04-10 03:02:15,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:02:15,632 INFO L225 Difference]: With dead ends: 1656 [2018-04-10 03:02:15,632 INFO L226 Difference]: Without dead ends: 1636 [2018-04-10 03:02:15,635 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2625 GetRequests, 2503 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3257 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=4867, Invalid=10385, Unknown=0, NotChecked=0, Total=15252 [2018-04-10 03:02:15,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2018-04-10 03:02:15,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1619. [2018-04-10 03:02:15,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1619 states. [2018-04-10 03:02:15,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 1638 transitions. [2018-04-10 03:02:15,712 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 1638 transitions. Word has length 1283 [2018-04-10 03:02:15,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:02:15,713 INFO L459 AbstractCegarLoop]: Abstraction has 1619 states and 1638 transitions. [2018-04-10 03:02:15,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-04-10 03:02:15,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 1638 transitions. [2018-04-10 03:02:15,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1421 [2018-04-10 03:02:15,729 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:02:15,729 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] [2018-04-10 03:02:15,729 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]=== [2018-04-10 03:02:15,730 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 [2018-04-10 03:02:15,770 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:02:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:02:16,076 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:02:17,903 INFO L134 CoverageAnalysis]: Checked inductivity of 70605 backedges. 16035 proven. 1230 refuted. 0 times theorem prover too weak. 53340 trivial. 0 not checked. [2018-04-10 03:02:17,903 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:02:19,723 INFO L134 CoverageAnalysis]: Checked inductivity of 70605 backedges. 16035 proven. 1230 refuted. 0 times theorem prover too weak. 53340 trivial. 0 not checked. [2018-04-10 03:02:19,759 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:02:19,760 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66] total 97 [2018-04-10 03:02:19,761 INFO L442 AbstractCegarLoop]: Interpolant automaton has 97 states [2018-04-10 03:02:19,761 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2018-04-10 03:02:19,762 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1153, Invalid=8159, Unknown=0, NotChecked=0, Total=9312 [2018-04-10 03:02:19,762 INFO L87 Difference]: Start difference. First operand 1619 states and 1638 transitions. Second operand 97 states. [2018-04-10 03:02:22,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:02:22,991 INFO L93 Difference]: Finished difference Result 2117 states and 2156 transitions. [2018-04-10 03:02:22,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2018-04-10 03:02:22,991 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 1420 [2018-04-10 03:02:22,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:02:22,996 INFO L225 Difference]: With dead ends: 2117 [2018-04-10 03:02:22,996 INFO L226 Difference]: Without dead ends: 1775 [2018-04-10 03:02:22,999 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2916 GetRequests, 2711 SyntacticMatches, 33 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8096 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=4749, Invalid=25353, Unknown=0, NotChecked=0, Total=30102 [2018-04-10 03:02:23,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2018-04-10 03:02:23,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1764. [2018-04-10 03:02:23,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1764 states. [2018-04-10 03:02:23,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 1783 transitions. [2018-04-10 03:02:23,040 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 1783 transitions. Word has length 1420 [2018-04-10 03:02:23,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:02:23,040 INFO L459 AbstractCegarLoop]: Abstraction has 1764 states and 1783 transitions. [2018-04-10 03:02:23,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 97 states. [2018-04-10 03:02:23,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 1783 transitions. [2018-04-10 03:02:23,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1568 [2018-04-10 03:02:23,052 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:02:23,053 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] [2018-04-10 03:02:23,053 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]=== [2018-04-10 03:02:23,053 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 [2018-04-10 03:02:23,063 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:02:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:02:23,341 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:02:25,395 INFO L134 CoverageAnalysis]: Checked inductivity of 87601 backedges. 32394 proven. 847 refuted. 0 times theorem prover too weak. 54360 trivial. 0 not checked. [2018-04-10 03:02:25,396 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:02:25,753 WARN L148 SmtUtils]: Spent 136ms on a formula simplification that was a NOOP. DAG size: 82 [2018-04-10 03:02:27,816 INFO L134 CoverageAnalysis]: Checked inductivity of 87601 backedges. 32394 proven. 847 refuted. 0 times theorem prover too weak. 54360 trivial. 0 not checked. [2018-04-10 03:02:27,839 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:02:27,840 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64] total 94 [2018-04-10 03:02:27,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 94 states [2018-04-10 03:02:27,841 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2018-04-10 03:02:27,841 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1116, Invalid=7626, Unknown=0, NotChecked=0, Total=8742 [2018-04-10 03:02:27,841 INFO L87 Difference]: Start difference. First operand 1764 states and 1783 transitions. Second operand 94 states. [2018-04-10 03:02:29,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:02:29,884 INFO L93 Difference]: Finished difference Result 2126 states and 2176 transitions. [2018-04-10 03:02:29,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2018-04-10 03:02:29,884 INFO L78 Accepts]: Start accepts. Automaton has 94 states. Word has length 1567 [2018-04-10 03:02:29,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:02:29,888 INFO L225 Difference]: With dead ends: 2126 [2018-04-10 03:02:29,889 INFO L226 Difference]: Without dead ends: 1778 [2018-04-10 03:02:29,891 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3209 GetRequests, 3009 SyntacticMatches, 33 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11342 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=4570, Invalid=23822, Unknown=0, NotChecked=0, Total=28392 [2018-04-10 03:02:29,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2018-04-10 03:02:29,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 1764. [2018-04-10 03:02:29,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1764 states. [2018-04-10 03:02:29,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 1781 transitions. [2018-04-10 03:02:29,931 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 1781 transitions. Word has length 1567 [2018-04-10 03:02:29,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:02:29,931 INFO L459 AbstractCegarLoop]: Abstraction has 1764 states and 1781 transitions. [2018-04-10 03:02:29,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 94 states. [2018-04-10 03:02:29,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 1781 transitions. [2018-04-10 03:02:29,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1577 [2018-04-10 03:02:29,943 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:02:29,944 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] [2018-04-10 03:02:29,944 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]=== [2018-04-10 03:02:29,944 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 [2018-04-10 03:02:29,950 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:02:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:02:30,245 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:02:31,329 INFO L134 CoverageAnalysis]: Checked inductivity of 88842 backedges. 17072 proven. 990 refuted. 0 times theorem prover too weak. 70780 trivial. 0 not checked. [2018-04-10 03:02:31,330 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:02:33,422 INFO L134 CoverageAnalysis]: Checked inductivity of 88842 backedges. 17072 proven. 990 refuted. 0 times theorem prover too weak. 70780 trivial. 0 not checked. [2018-04-10 03:02:33,458 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:02:33,459 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 63 [2018-04-10 03:02:33,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-04-10 03:02:33,460 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-04-10 03:02:33,461 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=606, Invalid=3426, Unknown=0, NotChecked=0, Total=4032 [2018-04-10 03:02:33,461 INFO L87 Difference]: Start difference. First operand 1764 states and 1781 transitions. Second operand 64 states. [2018-04-10 03:02:39,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:02:39,034 INFO L93 Difference]: Finished difference Result 1977 states and 2249 transitions. [2018-04-10 03:02:39,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2018-04-10 03:02:39,034 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 1576 [2018-04-10 03:02:39,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:02:39,043 INFO L225 Difference]: With dead ends: 1977 [2018-04-10 03:02:39,043 INFO L226 Difference]: Without dead ends: 1976 [2018-04-10 03:02:39,045 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3227 GetRequests, 3105 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2010 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=3518, Invalid=11734, Unknown=0, NotChecked=0, Total=15252 [2018-04-10 03:02:39,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1976 states. [2018-04-10 03:02:39,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1976 to 1907. [2018-04-10 03:02:39,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1907 states. [2018-04-10 03:02:39,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 1955 transitions. [2018-04-10 03:02:39,111 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 1955 transitions. Word has length 1576 [2018-04-10 03:02:39,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:02:39,112 INFO L459 AbstractCegarLoop]: Abstraction has 1907 states and 1955 transitions. [2018-04-10 03:02:39,112 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-04-10 03:02:39,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 1955 transitions. [2018-04-10 03:02:39,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1578 [2018-04-10 03:02:39,141 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:02:39,141 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] [2018-04-10 03:02:39,141 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]=== [2018-04-10 03:02:39,142 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 [2018-04-10 03:02:39,147 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:02:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:02:39,435 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:02:39,438 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 [2018-04-10 03:02:39,438 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-10 03:02:39,445 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-10 03:02:39,445 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-10 03:02:43,898 INFO L134 CoverageAnalysis]: Checked inductivity of 88977 backedges. 17272 proven. 1037 refuted. 0 times theorem prover too weak. 70668 trivial. 0 not checked. [2018-04-10 03:02:43,898 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:02:46,817 INFO L134 CoverageAnalysis]: Checked inductivity of 88977 backedges. 17272 proven. 1037 refuted. 0 times theorem prover too weak. 70668 trivial. 0 not checked. [2018-04-10 03:02:46,850 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:02:46,851 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 36] total 72 [2018-04-10 03:02:46,852 INFO L442 AbstractCegarLoop]: Interpolant automaton has 73 states [2018-04-10 03:02:46,852 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2018-04-10 03:02:46,853 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=725, Invalid=4531, Unknown=0, NotChecked=0, Total=5256 [2018-04-10 03:02:46,853 INFO L87 Difference]: Start difference. First operand 1907 states and 1955 transitions. Second operand 73 states. [2018-04-10 03:02:51,203 WARN L151 SmtUtils]: Spent 187ms on a formula simplification. DAG size of input: 124 DAG size of output 27 [2018-04-10 03:02:51,539 WARN L151 SmtUtils]: Spent 147ms on a formula simplification. DAG size of input: 120 DAG size of output 26 [2018-04-10 03:02:51,827 WARN L151 SmtUtils]: Spent 109ms on a formula simplification. DAG size of input: 117 DAG size of output 27 [2018-04-10 03:02:52,076 WARN L151 SmtUtils]: Spent 102ms on a formula simplification. DAG size of input: 113 DAG size of output 26 [2018-04-10 03:02:55,575 WARN L151 SmtUtils]: Spent 119ms on a formula simplification. DAG size of input: 54 DAG size of output 27 [2018-04-10 03:02:56,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:02:56,801 INFO L93 Difference]: Finished difference Result 1960 states and 2232 transitions. [2018-04-10 03:02:56,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-04-10 03:02:56,802 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 1577 [2018-04-10 03:02:56,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:02:56,809 INFO L225 Difference]: With dead ends: 1960 [2018-04-10 03:02:56,809 INFO L226 Difference]: Without dead ends: 1959 [2018-04-10 03:02:56,811 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3218 GetRequests, 3052 SyntacticMatches, 31 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3629 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=4107, Invalid=14525, Unknown=0, NotChecked=0, Total=18632 [2018-04-10 03:02:56,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1959 states. [2018-04-10 03:02:56,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1959 to 1908. [2018-04-10 03:02:56,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1908 states. [2018-04-10 03:02:56,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1908 states to 1908 states and 1941 transitions. [2018-04-10 03:02:56,889 INFO L78 Accepts]: Start accepts. Automaton has 1908 states and 1941 transitions. Word has length 1577 [2018-04-10 03:02:56,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:02:56,890 INFO L459 AbstractCegarLoop]: Abstraction has 1908 states and 1941 transitions. [2018-04-10 03:02:56,890 INFO L460 AbstractCegarLoop]: Interpolant automaton has 73 states. [2018-04-10 03:02:56,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1908 states and 1941 transitions. [2018-04-10 03:02:56,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1721 [2018-04-10 03:02:56,910 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:02:56,911 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] [2018-04-10 03:02:56,911 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]=== [2018-04-10 03:02:56,911 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 [2018-04-10 03:02:56,917 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:02:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:02:57,241 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:02:59,842 INFO L134 CoverageAnalysis]: Checked inductivity of 109922 backedges. 38262 proven. 1400 refuted. 0 times theorem prover too weak. 70260 trivial. 0 not checked. [2018-04-10 03:02:59,842 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:03:02,280 INFO L134 CoverageAnalysis]: Checked inductivity of 109922 backedges. 38262 proven. 1400 refuted. 0 times theorem prover too weak. 70260 trivial. 0 not checked. [2018-04-10 03:03:02,305 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:03:02,306 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70] total 103 [2018-04-10 03:03:02,307 INFO L442 AbstractCegarLoop]: Interpolant automaton has 103 states [2018-04-10 03:03:02,308 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2018-04-10 03:03:02,308 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1293, Invalid=9213, Unknown=0, NotChecked=0, Total=10506 [2018-04-10 03:03:02,309 INFO L87 Difference]: Start difference. First operand 1908 states and 1941 transitions. Second operand 103 states. [2018-04-10 03:03:05,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:03:05,686 INFO L93 Difference]: Finished difference Result 2548 states and 2615 transitions. [2018-04-10 03:03:05,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2018-04-10 03:03:05,686 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 1720 [2018-04-10 03:03:05,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:03:05,691 INFO L225 Difference]: With dead ends: 2548 [2018-04-10 03:03:05,691 INFO L226 Difference]: Without dead ends: 2073 [2018-04-10 03:03:05,696 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3521 GetRequests, 3303 SyntacticMatches, 35 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9196 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=5352, Invalid=28688, Unknown=0, NotChecked=0, Total=34040 [2018-04-10 03:03:05,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2018-04-10 03:03:05,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 2062. [2018-04-10 03:03:05,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2062 states. [2018-04-10 03:03:05,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2062 states to 2062 states and 2095 transitions. [2018-04-10 03:03:05,750 INFO L78 Accepts]: Start accepts. Automaton has 2062 states and 2095 transitions. Word has length 1720 [2018-04-10 03:03:05,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:03:05,751 INFO L459 AbstractCegarLoop]: Abstraction has 2062 states and 2095 transitions. [2018-04-10 03:03:05,751 INFO L460 AbstractCegarLoop]: Interpolant automaton has 103 states. [2018-04-10 03:03:05,751 INFO L276 IsEmpty]: Start isEmpty. Operand 2062 states and 2095 transitions. [2018-04-10 03:03:05,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1877 [2018-04-10 03:03:05,777 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:03:05,778 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] [2018-04-10 03:03:05,778 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]=== [2018-04-10 03:03:05,779 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 [2018-04-10 03:03:05,788 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:03:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:03:06,134 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:03:08,728 INFO L134 CoverageAnalysis]: Checked inductivity of 132457 backedges. 57872 proven. 975 refuted. 0 times theorem prover too weak. 73610 trivial. 0 not checked. [2018-04-10 03:03:08,728 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:03:08,848 WARN L148 SmtUtils]: Spent 114ms on a formula simplification that was a NOOP. DAG size: 85 [2018-04-10 03:03:08,994 WARN L148 SmtUtils]: Spent 144ms on a formula simplification that was a NOOP. DAG size: 85 [2018-04-10 03:03:09,114 WARN L148 SmtUtils]: Spent 116ms on a formula simplification that was a NOOP. DAG size: 87 [2018-04-10 03:03:09,271 WARN L148 SmtUtils]: Spent 155ms on a formula simplification that was a NOOP. DAG size: 87 [2018-04-10 03:03:11,750 INFO L134 CoverageAnalysis]: Checked inductivity of 132457 backedges. 57872 proven. 975 refuted. 0 times theorem prover too weak. 73610 trivial. 0 not checked. [2018-04-10 03:03:11,775 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:03:11,776 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 68] total 100 [2018-04-10 03:03:11,777 INFO L442 AbstractCegarLoop]: Interpolant automaton has 100 states [2018-04-10 03:03:11,777 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2018-04-10 03:03:11,778 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1254, Invalid=8646, Unknown=0, NotChecked=0, Total=9900 [2018-04-10 03:03:11,778 INFO L87 Difference]: Start difference. First operand 2062 states and 2095 transitions. Second operand 100 states. [2018-04-10 03:03:14,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:03:14,128 INFO L93 Difference]: Finished difference Result 2553 states and 2630 transitions. [2018-04-10 03:03:14,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2018-04-10 03:03:14,128 INFO L78 Accepts]: Start accepts. Automaton has 100 states. Word has length 1876 [2018-04-10 03:03:14,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:03:14,133 INFO L225 Difference]: With dead ends: 2553 [2018-04-10 03:03:14,133 INFO L226 Difference]: Without dead ends: 2072 [2018-04-10 03:03:14,138 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3832 GetRequests, 3619 SyntacticMatches, 35 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12938 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=5170, Invalid=27050, Unknown=0, NotChecked=0, Total=32220 [2018-04-10 03:03:14,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2072 states. [2018-04-10 03:03:14,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2072 to 2062. [2018-04-10 03:03:14,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2062 states. [2018-04-10 03:03:14,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2062 states to 2062 states and 2093 transitions. [2018-04-10 03:03:14,184 INFO L78 Accepts]: Start accepts. Automaton has 2062 states and 2093 transitions. Word has length 1876 [2018-04-10 03:03:14,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:03:14,185 INFO L459 AbstractCegarLoop]: Abstraction has 2062 states and 2093 transitions. [2018-04-10 03:03:14,185 INFO L460 AbstractCegarLoop]: Interpolant automaton has 100 states. [2018-04-10 03:03:14,185 INFO L276 IsEmpty]: Start isEmpty. Operand 2062 states and 2093 transitions. [2018-04-10 03:03:14,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1886 [2018-04-10 03:03:14,203 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:03:14,204 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] [2018-04-10 03:03:14,204 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]=== [2018-04-10 03:03:14,205 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 [2018-04-10 03:03:14,233 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:03:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:03:14,545 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:03:17,165 INFO L134 CoverageAnalysis]: Checked inductivity of 133988 backedges. 42970 proven. 1581 refuted. 0 times theorem prover too weak. 89437 trivial. 0 not checked. [2018-04-10 03:03:17,165 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:03:20,070 INFO L134 CoverageAnalysis]: Checked inductivity of 133988 backedges. 42970 proven. 1581 refuted. 0 times theorem prover too weak. 89437 trivial. 0 not checked. [2018-04-10 03:03:20,096 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:03:20,097 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 74] total 109 [2018-04-10 03:03:20,098 INFO L442 AbstractCegarLoop]: Interpolant automaton has 109 states [2018-04-10 03:03:20,099 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2018-04-10 03:03:20,100 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1441, Invalid=10331, Unknown=0, NotChecked=0, Total=11772 [2018-04-10 03:03:20,100 INFO L87 Difference]: Start difference. First operand 2062 states and 2093 transitions. Second operand 109 states. [2018-04-10 03:03:24,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:03:24,064 INFO L93 Difference]: Finished difference Result 2700 states and 2763 transitions. [2018-04-10 03:03:24,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2018-04-10 03:03:24,064 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 1885 [2018-04-10 03:03:24,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:03:24,069 INFO L225 Difference]: With dead ends: 2700 [2018-04-10 03:03:24,069 INFO L226 Difference]: Without dead ends: 2236 [2018-04-10 03:03:24,074 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3856 GetRequests, 3625 SyntacticMatches, 37 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10366 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=5991, Invalid=32229, Unknown=0, NotChecked=0, Total=38220 [2018-04-10 03:03:24,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2018-04-10 03:03:24,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 2225. [2018-04-10 03:03:24,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2225 states. [2018-04-10 03:03:24,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2225 states to 2225 states and 2256 transitions. [2018-04-10 03:03:24,123 INFO L78 Accepts]: Start accepts. Automaton has 2225 states and 2256 transitions. Word has length 1885 [2018-04-10 03:03:24,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:03:24,124 INFO L459 AbstractCegarLoop]: Abstraction has 2225 states and 2256 transitions. [2018-04-10 03:03:24,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 109 states. [2018-04-10 03:03:24,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2225 states and 2256 transitions. [2018-04-10 03:03:24,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2051 [2018-04-10 03:03:24,144 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:03:24,144 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] [2018-04-10 03:03:24,144 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]=== [2018-04-10 03:03:24,145 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 [2018-04-10 03:03:24,150 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:03:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:03:24,483 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:03:27,203 INFO L134 CoverageAnalysis]: Checked inductivity of 160443 backedges. 66415 proven. 1112 refuted. 0 times theorem prover too weak. 92916 trivial. 0 not checked. [2018-04-10 03:03:27,203 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:03:30,408 INFO L134 CoverageAnalysis]: Checked inductivity of 160443 backedges. 66415 proven. 1112 refuted. 0 times theorem prover too weak. 92916 trivial. 0 not checked. [2018-04-10 03:03:30,433 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:03:30,434 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [72, 72] total 106 [2018-04-10 03:03:30,436 INFO L442 AbstractCegarLoop]: Interpolant automaton has 106 states [2018-04-10 03:03:30,436 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2018-04-10 03:03:30,436 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1400, Invalid=9730, Unknown=0, NotChecked=0, Total=11130 [2018-04-10 03:03:30,437 INFO L87 Difference]: Start difference. First operand 2225 states and 2256 transitions. Second operand 106 states. [2018-04-10 03:03:33,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:03:33,185 INFO L93 Difference]: Finished difference Result 2705 states and 2777 transitions. [2018-04-10 03:03:33,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2018-04-10 03:03:33,186 INFO L78 Accepts]: Start accepts. Automaton has 106 states. Word has length 2050 [2018-04-10 03:03:33,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:03:33,190 INFO L225 Difference]: With dead ends: 2705 [2018-04-10 03:03:33,190 INFO L226 Difference]: Without dead ends: 2235 [2018-04-10 03:03:33,196 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4185 GetRequests, 3959 SyntacticMatches, 37 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14639 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=5807, Invalid=30483, Unknown=0, NotChecked=0, Total=36290 [2018-04-10 03:03:33,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2235 states. [2018-04-10 03:03:33,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2235 to 2225. [2018-04-10 03:03:33,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2225 states. [2018-04-10 03:03:33,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2225 states to 2225 states and 2254 transitions. [2018-04-10 03:03:33,248 INFO L78 Accepts]: Start accepts. Automaton has 2225 states and 2254 transitions. Word has length 2050 [2018-04-10 03:03:33,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:03:33,249 INFO L459 AbstractCegarLoop]: Abstraction has 2225 states and 2254 transitions. [2018-04-10 03:03:33,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 106 states. [2018-04-10 03:03:33,249 INFO L276 IsEmpty]: Start isEmpty. Operand 2225 states and 2254 transitions. [2018-04-10 03:03:33,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2060 [2018-04-10 03:03:33,270 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:03:33,271 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] [2018-04-10 03:03:33,271 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]=== [2018-04-10 03:03:33,272 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 [2018-04-10 03:03:33,278 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:03:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:03:33,632 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:03:36,529 INFO L134 CoverageAnalysis]: Checked inductivity of 162129 backedges. 47951 proven. 1773 refuted. 0 times theorem prover too weak. 112405 trivial. 0 not checked. [2018-04-10 03:03:36,530 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:03:39,767 INFO L134 CoverageAnalysis]: Checked inductivity of 162129 backedges. 47951 proven. 1773 refuted. 0 times theorem prover too weak. 112405 trivial. 0 not checked. [2018-04-10 03:03:39,793 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:03:39,793 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 78] total 115 [2018-04-10 03:03:39,795 INFO L442 AbstractCegarLoop]: Interpolant automaton has 115 states [2018-04-10 03:03:39,795 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2018-04-10 03:03:39,796 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1597, Invalid=11513, Unknown=0, NotChecked=0, Total=13110 [2018-04-10 03:03:39,796 INFO L87 Difference]: Start difference. First operand 2225 states and 2254 transitions. Second operand 115 states. [2018-04-10 03:03:44,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:03:44,344 INFO L93 Difference]: Finished difference Result 2861 states and 2920 transitions. [2018-04-10 03:03:44,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2018-04-10 03:03:44,344 INFO L78 Accepts]: Start accepts. Automaton has 115 states. Word has length 2059 [2018-04-10 03:03:44,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:03:44,351 INFO L225 Difference]: With dead ends: 2861 [2018-04-10 03:03:44,352 INFO L226 Difference]: Without dead ends: 2408 [2018-04-10 03:03:44,361 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4209 GetRequests, 3965 SyntacticMatches, 39 SemanticMatches, 205 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11606 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=6666, Invalid=35976, Unknown=0, NotChecked=0, Total=42642 [2018-04-10 03:03:44,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2408 states. [2018-04-10 03:03:44,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2408 to 2397. [2018-04-10 03:03:44,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2397 states. [2018-04-10 03:03:44,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2397 states to 2397 states and 2426 transitions. [2018-04-10 03:03:44,450 INFO L78 Accepts]: Start accepts. Automaton has 2397 states and 2426 transitions. Word has length 2059 [2018-04-10 03:03:44,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:03:44,452 INFO L459 AbstractCegarLoop]: Abstraction has 2397 states and 2426 transitions. [2018-04-10 03:03:44,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 115 states. [2018-04-10 03:03:44,452 INFO L276 IsEmpty]: Start isEmpty. Operand 2397 states and 2426 transitions. [2018-04-10 03:03:44,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2234 [2018-04-10 03:03:44,490 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:03:44,491 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] [2018-04-10 03:03:44,492 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]=== [2018-04-10 03:03:44,492 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 [2018-04-10 03:03:44,501 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:03:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:03:44,920 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:03:48,064 INFO L134 CoverageAnalysis]: Checked inductivity of 192960 backedges. 75698 proven. 1258 refuted. 0 times theorem prover too weak. 116004 trivial. 0 not checked. [2018-04-10 03:03:48,064 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:03:51,952 INFO L134 CoverageAnalysis]: Checked inductivity of 192960 backedges. 75698 proven. 1258 refuted. 0 times theorem prover too weak. 116004 trivial. 0 not checked. [2018-04-10 03:03:51,978 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:03:51,978 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 76] total 112 [2018-04-10 03:03:51,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 112 states [2018-04-10 03:03:51,980 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2018-04-10 03:03:51,981 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1554, Invalid=10878, Unknown=0, NotChecked=0, Total=12432 [2018-04-10 03:03:51,981 INFO L87 Difference]: Start difference. First operand 2397 states and 2426 transitions. Second operand 112 states. [2018-04-10 03:03:55,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:03:55,018 INFO L93 Difference]: Finished difference Result 2866 states and 2933 transitions. [2018-04-10 03:03:55,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2018-04-10 03:03:55,018 INFO L78 Accepts]: Start accepts. Automaton has 112 states. Word has length 2233 [2018-04-10 03:03:55,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:03:55,024 INFO L225 Difference]: With dead ends: 2866 [2018-04-10 03:03:55,024 INFO L226 Difference]: Without dead ends: 2407 [2018-04-10 03:03:55,030 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4556 GetRequests, 4317 SyntacticMatches, 39 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16445 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=6481, Invalid=34121, Unknown=0, NotChecked=0, Total=40602 [2018-04-10 03:03:55,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2407 states. [2018-04-10 03:03:55,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2407 to 2397. [2018-04-10 03:03:55,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2397 states. [2018-04-10 03:03:55,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2397 states to 2397 states and 2424 transitions. [2018-04-10 03:03:55,119 INFO L78 Accepts]: Start accepts. Automaton has 2397 states and 2424 transitions. Word has length 2233 [2018-04-10 03:03:55,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:03:55,120 INFO L459 AbstractCegarLoop]: Abstraction has 2397 states and 2424 transitions. [2018-04-10 03:03:55,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 112 states. [2018-04-10 03:03:55,121 INFO L276 IsEmpty]: Start isEmpty. Operand 2397 states and 2424 transitions. [2018-04-10 03:03:55,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2243 [2018-04-10 03:03:55,158 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:03:55,159 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] [2018-04-10 03:03:55,159 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]=== [2018-04-10 03:03:55,160 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 [2018-04-10 03:03:55,169 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:03:55,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:03:55,544 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:03:58,992 INFO L134 CoverageAnalysis]: Checked inductivity of 194810 backedges. 53205 proven. 1976 refuted. 0 times theorem prover too weak. 139629 trivial. 0 not checked. [2018-04-10 03:03:58,992 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:04:02,802 INFO L134 CoverageAnalysis]: Checked inductivity of 194810 backedges. 53205 proven. 1976 refuted. 0 times theorem prover too weak. 139629 trivial. 0 not checked. [2018-04-10 03:04:02,827 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:04:02,828 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 82] total 121 [2018-04-10 03:04:02,830 INFO L442 AbstractCegarLoop]: Interpolant automaton has 121 states [2018-04-10 03:04:02,830 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2018-04-10 03:04:02,831 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1761, Invalid=12759, Unknown=0, NotChecked=0, Total=14520 [2018-04-10 03:04:02,831 INFO L87 Difference]: Start difference. First operand 2397 states and 2424 transitions. Second operand 121 states. [2018-04-10 03:04:08,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:04:08,348 INFO L93 Difference]: Finished difference Result 3031 states and 3086 transitions. [2018-04-10 03:04:08,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2018-04-10 03:04:08,348 INFO L78 Accepts]: Start accepts. Automaton has 121 states. Word has length 2242 [2018-04-10 03:04:08,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:04:08,354 INFO L225 Difference]: With dead ends: 3031 [2018-04-10 03:04:08,355 INFO L226 Difference]: Without dead ends: 2589 [2018-04-10 03:04:08,364 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4580 GetRequests, 4323 SyntacticMatches, 41 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12916 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=7377, Invalid=39929, Unknown=0, NotChecked=0, Total=47306 [2018-04-10 03:04:08,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2589 states. [2018-04-10 03:04:08,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2589 to 2578. [2018-04-10 03:04:08,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2578 states. [2018-04-10 03:04:08,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 2605 transitions. [2018-04-10 03:04:08,430 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 2605 transitions. Word has length 2242 [2018-04-10 03:04:08,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:04:08,431 INFO L459 AbstractCegarLoop]: Abstraction has 2578 states and 2605 transitions. [2018-04-10 03:04:08,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 121 states. [2018-04-10 03:04:08,431 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 2605 transitions. [2018-04-10 03:04:08,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2426 [2018-04-10 03:04:08,508 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:04:08,509 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] [2018-04-10 03:04:08,509 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]=== [2018-04-10 03:04:08,510 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 [2018-04-10 03:04:08,518 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:04:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:04:08,915 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-10 03:04:12,588 INFO L134 CoverageAnalysis]: Checked inductivity of 230500 backedges. 85748 proven. 1413 refuted. 0 times theorem prover too weak. 143339 trivial. 0 not checked. [2018-04-10 03:04:12,589 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-10 03:04:16,938 INFO L134 CoverageAnalysis]: Checked inductivity of 230500 backedges. 85748 proven. 1413 refuted. 0 times theorem prover too weak. 143339 trivial. 0 not checked. [2018-04-10 03:04:16,966 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-10 03:04:16,967 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 80] total 118 [2018-04-10 03:04:16,969 INFO L442 AbstractCegarLoop]: Interpolant automaton has 118 states [2018-04-10 03:04:16,969 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2018-04-10 03:04:16,970 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1716, Invalid=12090, Unknown=0, NotChecked=0, Total=13806 [2018-04-10 03:04:16,970 INFO L87 Difference]: Start difference. First operand 2578 states and 2605 transitions. Second operand 118 states. [2018-04-10 03:04:20,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-10 03:04:20,099 INFO L93 Difference]: Finished difference Result 3036 states and 3098 transitions. [2018-04-10 03:04:20,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2018-04-10 03:04:20,099 INFO L78 Accepts]: Start accepts. Automaton has 118 states. Word has length 2425 [2018-04-10 03:04:20,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-10 03:04:20,103 INFO L225 Difference]: With dead ends: 3036 [2018-04-10 03:04:20,103 INFO L226 Difference]: Without dead ends: 2588 [2018-04-10 03:04:20,107 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4945 GetRequests, 4693 SyntacticMatches, 41 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18356 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=7192, Invalid=37964, Unknown=0, NotChecked=0, Total=45156 [2018-04-10 03:04:20,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states. [2018-04-10 03:04:20,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 2578. [2018-04-10 03:04:20,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2578 states. [2018-04-10 03:04:20,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 2603 transitions. [2018-04-10 03:04:20,160 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 2603 transitions. Word has length 2425 [2018-04-10 03:04:20,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-10 03:04:20,160 INFO L459 AbstractCegarLoop]: Abstraction has 2578 states and 2603 transitions. [2018-04-10 03:04:20,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 118 states. [2018-04-10 03:04:20,161 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 2603 transitions. [2018-04-10 03:04:20,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2435 [2018-04-10 03:04:20,205 INFO L347 BasicCegarLoop]: Found error trace [2018-04-10 03:04:20,206 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] [2018-04-10 03:04:20,206 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]=== [2018-04-10 03:04:20,206 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 [2018-04-10 03:04:20,212 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-10 03:04:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-10 03:04:20,590 INFO L270 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2018-04-10 03:04:21,966 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-04-10 03:04:21,967 WARN L519 AbstractCegarLoop]: Verification canceled [2018-04-10 03:04:21,970 WARN L197 ceAbstractionStarter]: Timeout [2018-04-10 03:04:21,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.04 03:04:21 BasicIcfg [2018-04-10 03:04:21,970 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-10 03:04:21,971 INFO L168 Benchmark]: Toolchain (without parser) took 226455.70 ms. Allocated memory was 305.7 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 248.5 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 796.2 MB. Max. memory is 5.3 GB. [2018-04-10 03:04:21,971 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 305.7 MB. Free memory is still 268.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-10 03:04:21,971 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.00 ms. Allocated memory is still 305.7 MB. Free memory was 248.5 MB in the beginning and 238.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-04-10 03:04:21,972 INFO L168 Benchmark]: Boogie Preprocessor took 44.78 ms. Allocated memory is still 305.7 MB. Free memory was 238.4 MB in the beginning and 236.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-04-10 03:04:21,972 INFO L168 Benchmark]: RCFGBuilder took 345.57 ms. Allocated memory was 305.7 MB in the beginning and 462.9 MB in the end (delta: 157.3 MB). Free memory was 236.4 MB in the beginning and 428.9 MB in the end (delta: -192.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 5.3 GB. [2018-04-10 03:04:21,972 INFO L168 Benchmark]: IcfgTransformer took 3530.19 ms. Allocated memory was 462.9 MB in the beginning and 520.6 MB in the end (delta: 57.7 MB). Free memory was 428.9 MB in the beginning and 353.5 MB in the end (delta: 75.3 MB). Peak memory consumption was 133.0 MB. Max. memory is 5.3 GB. [2018-04-10 03:04:21,973 INFO L168 Benchmark]: TraceAbstraction took 222237.08 ms. Allocated memory was 520.6 MB in the beginning and 2.3 GB in the end (delta: 1.8 GB). Free memory was 353.5 MB in the beginning and 1.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 686.3 MB. Max. memory is 5.3 GB. [2018-04-10 03:04:21,974 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 305.7 MB. Free memory is still 268.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 292.00 ms. Allocated memory is still 305.7 MB. Free memory was 248.5 MB in the beginning and 238.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 44.78 ms. Allocated memory is still 305.7 MB. Free memory was 238.4 MB in the beginning and 236.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 345.57 ms. Allocated memory was 305.7 MB in the beginning and 462.9 MB in the end (delta: 157.3 MB). Free memory was 236.4 MB in the beginning and 428.9 MB in the end (delta: -192.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 5.3 GB. * IcfgTransformer took 3530.19 ms. Allocated memory was 462.9 MB in the beginning and 520.6 MB in the end (delta: 57.7 MB). Free memory was 428.9 MB in the beginning and 353.5 MB in the end (delta: 75.3 MB). Peak memory consumption was 133.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 222237.08 ms. Allocated memory was 520.6 MB in the beginning and 2.3 GB in the end (delta: 1.8 GB). Free memory was 353.5 MB in the beginning and 1.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 686.3 MB. 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) : 831.81 RENAME_VARIABLES(MILLISECONDS) : 135.48 UNFREEZE(MILLISECONDS) : 0.00 CONJOIN(MILLISECONDS) : 824.44 PROJECTAWAY(MILLISECONDS) : 720.65 ADD_WEAK_EQUALITY(MILLISECONDS) : 13.64 DISJOIN(MILLISECONDS) : 39.35 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 149.52 ADD_EQUALITY(MILLISECONDS) : 11.49 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.00 ADD_DISEQUALITY(MILLISECONDS) : 0.27 #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) : 1661.11 ADDNODE(MILLISECONDS) : 0.00 MEET(MILLISECONDS) : 819.35 FILTERREDUNDANT(MILLISECONDS) : 0.00 REPORTWEQ(MILLISECONDS) : 13.48 JOIN(MILLISECONDS) : 36.42 RENAMEVARS(MILLISECONDS) : 128.48 FLATTENLABELS(MILLISECONDS) : 0.00 COPY(MILLISECONDS) : 0.00 ISSTRONGERTHAN(MILLISECONDS) : 1207.45 ISLABELSTRONGERTHAN(MILLISECONDS) : 122.55 ISWEQGRAPHSTRONGERTHAN(MILLISECONDS) : 17.79 UNFREEZE(MILLISECONDS) : 39.79 REPORTCONTAINS(MILLISECONDS) : 0.30 PROJECTAWAY(MILLISECONDS) : 649.85 MEETEDGELABELS(MILLISECONDS) : 94.84 REPORTEQUALITY(MILLISECONDS) : 196.31 ADDALLNODES(MILLISECONDS) : 138.17 REPORTDISEQUALITY(MILLISECONDS) : 3.67 WEQGRAPHJOIN(MILLISECONDS) : 15.95 #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) : 523.32 REPORT_EQUALITY(MILLISECONDS) : 152.12 FILTERREDUNDANT(MILLISECONDS) : 853.54 ADD_ALL_ELEMENTS(MILLISECONDS) : 304.66 JOIN(MILLISECONDS) : 15.33 ALIGN_ELEMENTS(MILLISECONDS) : 454.69 COPY(MILLISECONDS) : 0.00 REPORT_DISEQUALITY(MILLISECONDS) : 63.06 UNFREEZE(MILLISECONDS) : 0.00 OVERALL(MILLISECONDS) : 1538.74 REPORTCONTAINS(MILLISECONDS) : 6.15 IS_STRONGER_THAN_NO_CACHING(MILLISECONDS) : 605.85 REMOVE(MILLISECONDS) : 0.00 IS_STRONGER_THAN_W_CACHING(MILLISECONDS) : 0.00 PROJECT_TO_ELEMENTS(MILLISECONDS) : 257.50 #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 analyzing trace of length 2435 with TraceHistMax 242, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 80 known predicates. - TimeoutResultAtElement [Line: 16]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 16). Cancelled while BasicCegarLoop was analyzing trace of length 2435 with TraceHistMax 242, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 80 known predicates. - TimeoutResultAtElement [Line: 16]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 16). Cancelled while BasicCegarLoop was analyzing trace of length 2435 with TraceHistMax 242, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 80 known predicates. - TimeoutResultAtElement [Line: 30]: Timeout (TraceAbstraction) Unable to prove that array index is always in bounds (line 30). Cancelled while BasicCegarLoop was analyzing trace of length 2435 with TraceHistMax 242, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 80 known predicates. - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 21). Cancelled while BasicCegarLoop was analyzing trace of length 2435 with TraceHistMax 242, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 80 known predicates. - TimeoutResultAtElement [Line: 27]: Timeout (TraceAbstraction) Unable to prove that array index is always in bounds (line 27). Cancelled while BasicCegarLoop was analyzing trace of length 2435 with TraceHistMax 242, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 80 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 64 locations, 6 error locations. TIMEOUT Result, 222.1s OverallTime, 57 OverallIterations, 242 TraceHistogramMax, 90.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5435 SDtfs, 37284 SDslu, 72537 SDs, 0 SdLazy, 65788 SolverSat, 8010 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 26.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88041 GetRequests, 82011 SyntacticMatches, 937 SemanticMatches, 5093 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224623 ImplicationChecksByTransitivity, 111.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2578occurred in iteration=55, 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, 56 MinimizatonAttempts, 801 StatesRemovedByMinimization, 55 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 1.3s SsaConstructionTime, 6.2s SatisfiabilityAnalysisTime, 117.5s InterpolantComputationTime, 42882 NumberOfCodeBlocks, 42882 NumberOfCodeBlocksAsserted, 56 NumberOfCheckSat, 85652 ConstructedInterpolants, 1715 QuantifiedInterpolants, 226212045 SizeOfPredicates, 1788 NumberOfNonLiveVariables, 79120 ConjunctsInSsa, 2066 ConjunctsInUnsatCore, 112 InterpolantComputations, 10 PerfectInterpolantSequences, 4306662/4361366 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-0-2018-04-10_03-04-21-986.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-0-2018-04-10_03-04-21-986.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-0-2018-04-10_03-04-21-986.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-1-2018-04-10_03-04-21-986.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-2-2018-04-10_03-04-21-986.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-0-2018-04-10_03-04-21-986.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-0-2018-04-10_03-04-21-986.csv Completed graceful shutdown