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 0.1.23-1cf7e2d-m [2018-03-29 23:50:50,159 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-29 23:50:50,161 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-29 23:50:50,176 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-29 23:50:50,176 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-29 23:50:50,177 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-29 23:50:50,178 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-29 23:50:50,180 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-29 23:50:50,182 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-29 23:50:50,182 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-29 23:50:50,183 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-29 23:50:50,184 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-29 23:50:50,184 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-29 23:50:50,186 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-29 23:50:50,187 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-29 23:50:50,189 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-29 23:50:50,191 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-29 23:50:50,193 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-29 23:50:50,194 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-29 23:50:50,195 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-29 23:50:50,197 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-29 23:50:50,197 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-29 23:50:50,198 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-29 23:50:50,199 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-29 23:50:50,199 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-29 23:50:50,201 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-29 23:50:50,201 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-29 23:50:50,202 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-29 23:50:50,202 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-29 23:50:50,203 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-29 23:50:50,203 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-29 23:50:50,203 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-03-29 23:50:50,229 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-29 23:50:50,230 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-29 23:50:50,230 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-03-29 23:50:50,230 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-03-29 23:50:50,231 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-29 23:50:50,231 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-29 23:50:50,231 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-29 23:50:50,231 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-29 23:50:50,232 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-29 23:50:50,232 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-03-29 23:50:50,232 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-03-29 23:50:50,232 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-29 23:50:50,233 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-29 23:50:50,233 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-29 23:50:50,233 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-29 23:50:50,233 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-29 23:50:50,233 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-29 23:50:50,233 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-29 23:50:50,234 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-29 23:50:50,234 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-29 23:50:50,234 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-29 23:50:50,234 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-29 23:50:50,234 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-29 23:50:50,235 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-29 23:50:50,235 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-29 23:50:50,235 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-29 23:50:50,235 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-29 23:50:50,235 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-29 23:50:50,236 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-29 23:50:50,236 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-29 23:50:50,236 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-29 23:50:50,236 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 23:50:50,236 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-29 23:50:50,237 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-29 23:50:50,237 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-29 23:50:50,238 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-03-29 23:50:50,238 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-03-29 23:50:50,271 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-29 23:50:50,283 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-29 23:50:50,286 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-29 23:50:50,288 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-29 23:50:50,289 INFO L276 PluginConnector]: CDTParser initialized [2018-03-29 23:50:50,289 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength5_true-valid-memsafety.c [2018-03-29 23:50:50,618 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGdf2c6ada8 [2018-03-29 23:50:50,723 INFO L287 CDTParser]: IsIndexed: true [2018-03-29 23:50:50,723 INFO L288 CDTParser]: Found 1 translation units. [2018-03-29 23:50:50,724 INFO L168 CDTParser]: Scanning ArraysOfVariableLength5_true-valid-memsafety.c [2018-03-29 23:50:50,725 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-29 23:50:50,725 INFO L215 ultiparseSymbolTable]: [2018-03-29 23:50:50,725 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-29 23:50:50,726 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo ('foo') in ArraysOfVariableLength5_true-valid-memsafety.c [2018-03-29 23:50:50,726 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength5_true-valid-memsafety.c [2018-03-29 23:50:50,726 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-29 23:50:50,726 INFO L233 ultiparseSymbolTable]: [2018-03-29 23:50:50,741 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGdf2c6ada8 [2018-03-29 23:50:50,745 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-29 23:50:50,749 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-03-29 23:50:50,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-29 23:50:50,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-29 23:50:50,756 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-29 23:50:50,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 11:50:50" (1/1) ... [2018-03-29 23:50:50,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@612d815f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 11:50:50, skipping insertion in model container [2018-03-29 23:50:50,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 11:50:50" (1/1) ... [2018-03-29 23:50:50,773 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 23:50:50,785 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 23:50:50,922 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 23:50:50,944 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 23:50:50,948 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-03-29 23:50:50,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 11:50:50 WrapperNode [2018-03-29 23:50:50,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-29 23:50:50,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-29 23:50:50,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-29 23:50:50,956 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-29 23:50:50,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 11:50:50" (1/1) ... [2018-03-29 23:50:50,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 11:50:50" (1/1) ... [2018-03-29 23:50:50,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 11:50:50" (1/1) ... [2018-03-29 23:50:50,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 11:50:50" (1/1) ... [2018-03-29 23:50:50,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 11:50:50" (1/1) ... [2018-03-29 23:50:50,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 11:50:50" (1/1) ... [2018-03-29 23:50:50,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 11:50:50" (1/1) ... [2018-03-29 23:50:50,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-29 23:50:50,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-29 23:50:50,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-29 23:50:50,984 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-29 23:50:50,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 11:50:50" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-29 23:50:51,037 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-29 23:50:51,038 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-29 23:50:51,038 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo [2018-03-29 23:50:51,038 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-29 23:50:51,038 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo [2018-03-29 23:50:51,038 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-29 23:50:51,038 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-29 23:50:51,038 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-29 23:50:51,039 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-29 23:50:51,039 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-29 23:50:51,039 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-29 23:50:51,039 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-29 23:50:51,039 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-29 23:50:51,277 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-29 23:50:51,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 11:50:51 BoogieIcfgContainer [2018-03-29 23:50:51,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-29 23:50:51,278 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-03-29 23:50:51,278 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-03-29 23:50:51,279 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-03-29 23:50:51,281 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 11:50:51" (1/1) ... [2018-03-29 23:50:51,287 INFO L139 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-03-29 23:50:51,287 INFO L140 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-03-29 23:50:51,301 INFO L298 apSepIcfgTransformer]: Heap separator: starting memloc-array-style preprocessing [2018-03-29 23:50:51,310 INFO L333 apSepIcfgTransformer]: finished MemlocArrayUpdater, created 0 location literals (each corresponds to one heap write) [2018-03-29 23:50:51,318 INFO L393 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-03-29 23:50:51,319 DEBUG L397 apSepIcfgTransformer]: storeIndexInfoToLocLiteral: Map: [2018-03-29 23:50:51,320 DEBUG L399 apSepIcfgTransformer]: edgeToIndexToStoreIndexInfo: NestedMap2: [2018-03-29 23:50:51,369 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-03-29 23:50:59,914 INFO L314 AbstractInterpreter]: Visited 70 different actions 297 times. Merged at 48 different actions 154 times. Never widened. Found 19 fixpoints after 9 different actions. Largest state had 21 variables. [2018-03-29 23:50:59,916 INFO L405 apSepIcfgTransformer]: finished equality analysis [2018-03-29 23:50:59,922 INFO L195 HeapSepPreAnalysis]: Number of read from array group [#memory_int] : 1 [2018-03-29 23:50:59,923 INFO L415 apSepIcfgTransformer]: Finished pre analysis before partitioning [2018-03-29 23:50:59,923 INFO L416 apSepIcfgTransformer]: array groups: Set: [#memory_int] [2018-03-29 23:50:59,924 INFO L418 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')) [2018-03-29 23:50:59,927 DEBUG L379 HeapPartitionManager]: creating LocationBlock locs_30 [2018-03-29 23:50:59,927 DEBUG L380 HeapPartitionManager]: with contents [NoStoreIndexInfo] [2018-03-29 23:50:59,927 DEBUG L329 HeapPartitionManager]: adding LocationBlock locs_30 [2018-03-29 23:50:59,927 DEBUG L330 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')) [2018-03-29 23:50:59,927 DEBUG L331 HeapPartitionManager]: write locations: [NoStoreIndexInfo] [2018-03-29 23:50:59,928 DEBUG L379 HeapPartitionManager]: creating LocationBlock locs_30 [2018-03-29 23:50:59,928 DEBUG L380 HeapPartitionManager]: with contents [NoStoreIndexInfo] [2018-03-29 23:50:59,928 DEBUG L329 HeapPartitionManager]: adding LocationBlock locs_30 [2018-03-29 23:50:59,928 DEBUG L330 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')) [2018-03-29 23:50:59,928 DEBUG L331 HeapPartitionManager]: write locations: [NoStoreIndexInfo] [2018-03-29 23:50:59,928 INFO L336 HeapPartitionManager]: partitioning result: [2018-03-29 23:50:59,928 INFO L341 HeapPartitionManager]: location blocks for array group [#memory_int] [2018-03-29 23:50:59,928 INFO L350 HeapPartitionManager]: at dimension 0 [2018-03-29 23:50:59,929 INFO L351 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-03-29 23:50:59,929 INFO L352 HeapPartitionManager]: # location blocks :1 [2018-03-29 23:50:59,929 DEBUG L359 HeapPartitionManager]: location block contents: [2018-03-29 23:50:59,929 DEBUG L362 HeapPartitionManager]: [NoStoreIndexInfo] [2018-03-29 23:50:59,929 INFO L350 HeapPartitionManager]: at dimension 1 [2018-03-29 23:50:59,929 INFO L351 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-03-29 23:50:59,929 INFO L352 HeapPartitionManager]: # location blocks :1 [2018-03-29 23:50:59,929 DEBUG L359 HeapPartitionManager]: location block contents: [2018-03-29 23:50:59,930 DEBUG L362 HeapPartitionManager]: [NoStoreIndexInfo] [2018-03-29 23:50:59,930 INFO L124 ransitionTransformer]: executing heap partitioning transformation [2018-03-29 23:50:59,933 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,933 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:50:59,933 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,933 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,933 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,934 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:50:59,934 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,934 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,934 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,934 DEBUG L259 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] [2018-03-29 23:50:59,934 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,935 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,935 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,935 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:50:59,935 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,935 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,936 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,936 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{main_~i~1=v_main_~i~1_9} AuxVars[] AssignedVars[main_~i~1] [2018-03-29 23:50:59,936 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,936 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,936 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,937 DEBUG L259 ransitionTransformer]: Formula: (= |v_#valid_1| (store |v_#valid_2| 0 0)) InVars {#valid=|v_#valid_2|} OutVars{#valid=|v_#valid_1|} AuxVars[] AssignedVars[#valid] [2018-03-29 23:50:59,937 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,937 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,937 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,937 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{main_~b~0=v_main_~b~0_3} AuxVars[] AssignedVars[main_~b~0] [2018-03-29 23:50:59,937 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,938 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,938 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,938 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:50:59,938 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,938 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,938 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,938 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{main_~buffer~0=v_main_~buffer~0_1} AuxVars[] AssignedVars[main_~buffer~0] [2018-03-29 23:50:59,938 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,938 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,939 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,939 DEBUG L259 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] [2018-03-29 23:50:59,939 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,939 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,939 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,939 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{main_~c~0.offset=v_main_~c~0.offset_1, main_~c~0.base=v_main_~c~0.base_1} AuxVars[] AssignedVars[main_~c~0.base, main_~c~0.offset] [2018-03-29 23:50:59,939 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,939 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,940 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,940 DEBUG L259 ransitionTransformer]: Formula: (= v_main_~i~1_10 0) InVars {} OutVars{main_~i~1=v_main_~i~1_10} AuxVars[] AssignedVars[main_~i~1] [2018-03-29 23:50:59,940 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,940 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,940 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,940 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:50:59,940 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,940 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,941 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,941 DEBUG L259 ransitionTransformer]: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:50:59,941 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,941 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,941 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,941 DEBUG L259 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[] [2018-03-29 23:50:59,942 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,942 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,942 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,942 DEBUG L259 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[] [2018-03-29 23:50:59,942 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,942 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,942 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,943 DEBUG L259 ransitionTransformer]: Formula: (= v_main_~i~1_1 0) InVars {} OutVars{main_~i~1=v_main_~i~1_1} AuxVars[] AssignedVars[main_~i~1] [2018-03-29 23:50:59,943 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,943 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,943 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,944 DEBUG L259 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] [2018-03-29 23:50:59,944 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,944 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,944 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,944 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:50:59,944 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,944 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,945 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,945 DEBUG L259 ransitionTransformer]: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:50:59,945 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,945 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,945 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,945 DEBUG L259 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[] [2018-03-29 23:50:59,946 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,946 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,946 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,946 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:50:59,946 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,946 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,947 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,947 DEBUG L259 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[] [2018-03-29 23:50:59,947 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,947 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,947 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,948 DEBUG L259 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[] [2018-03-29 23:50:59,948 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,948 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,948 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,948 DEBUG L259 ransitionTransformer]: Formula: (= |v_main_#res_2| 0) InVars {} OutVars{main_#res=|v_main_#res_2|} AuxVars[] AssignedVars[main_#res] [2018-03-29 23:50:59,948 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,949 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,949 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,949 DEBUG L259 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~size=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~sizeInParam_1|, __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|} 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] [2018-03-29 23:50:59,949 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,949 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,949 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,949 DEBUG L259 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[] [2018-03-29 23:50:59,950 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,950 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,950 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,950 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:50:59,950 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,950 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,951 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,951 DEBUG L259 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] [2018-03-29 23:50:59,951 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,951 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,951 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,952 DEBUG L259 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[] [2018-03-29 23:50:59,952 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,952 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,952 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,952 DEBUG L259 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] [2018-03-29 23:50:59,952 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,953 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,953 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,953 DEBUG L259 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[] [2018-03-29 23:50:59,953 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,953 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,954 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,954 DEBUG L259 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[] [2018-03-29 23:50:59,954 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,954 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,954 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,954 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{main_~#mask~0.base=|v_main_~#mask~0.base_4|, main_~#mask~0.offset=|v_main_~#mask~0.offset_4|} AuxVars[] AssignedVars[main_~#mask~0.base, main_~#mask~0.offset] [2018-03-29 23:50:59,954 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,955 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,955 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,955 DEBUG L259 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] [2018-03-29 23:50:59,955 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,955 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,955 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,955 DEBUG L259 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] [2018-03-29 23:50:59,956 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,956 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,956 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,956 DEBUG L259 ransitionTransformer]: Formula: (= |v_main_#res_1| 1) InVars {} OutVars{main_#res=|v_main_#res_1|} AuxVars[] AssignedVars[main_#res] [2018-03-29 23:50:59,956 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,956 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,956 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,957 DEBUG L259 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] [2018-03-29 23:50:59,957 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,957 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,957 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,957 DEBUG L259 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[] [2018-03-29 23:50:59,957 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,958 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,958 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,958 DEBUG L259 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[] [2018-03-29 23:50:59,958 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,958 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,959 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,959 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{main_#t~ret3=|v_main_#t~ret3_4|} AuxVars[] AssignedVars[main_#t~ret3] [2018-03-29 23:50:59,959 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,959 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,959 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,959 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~a~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~a~0_1} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~a~0] [2018-03-29 23:50:59,960 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,960 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,960 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,960 DEBUG L259 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] [2018-03-29 23:50:59,960 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,960 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,960 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,960 DEBUG L259 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] [2018-03-29 23:50:59,960 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,961 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,961 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,961 DEBUG L259 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] [2018-03-29 23:50:59,961 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,961 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,961 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,961 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_1} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0] [2018-03-29 23:50:59,961 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,961 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,962 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,962 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{main_~#mask~0.base=|v_main_~#mask~0.base_2|, main_~#mask~0.offset=|v_main_~#mask~0.offset_2|} AuxVars[] AssignedVars[main_~#mask~0.base, main_~#mask~0.offset] [2018-03-29 23:50:59,962 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,962 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,962 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,962 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{main_#t~post4=|v_main_#t~post4_3|} AuxVars[] AssignedVars[main_#t~post4] [2018-03-29 23:50:59,962 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,962 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,962 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,963 DEBUG L259 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] [2018-03-29 23:50:59,963 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,963 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,963 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,963 DEBUG L259 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] [2018-03-29 23:50:59,963 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,963 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,963 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,963 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{main_#t~post2=|v_main_#t~post2_3|} AuxVars[] AssignedVars[main_#t~post2] [2018-03-29 23:50:59,964 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,964 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,964 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,964 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:50:59,964 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,964 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,964 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,964 DEBUG L259 ransitionTransformer]: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:50:59,965 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,965 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,965 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,965 DEBUG L259 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[] [2018-03-29 23:50:59,965 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,965 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,966 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,966 DEBUG L259 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[] [2018-03-29 23:50:59,966 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,966 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,966 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,967 DEBUG L259 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] [2018-03-29 23:50:59,967 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,967 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,967 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,967 DEBUG L259 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[] [2018-03-29 23:50:59,968 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,968 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,968 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,968 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:50:59,968 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,968 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,969 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,969 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:50:59,969 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,969 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,972 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,972 DEBUG L259 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] [2018-03-29 23:50:59,972 DEBUG L266 ransitionTransformer]: formula has changed [2018-03-29 23:50:59,973 DEBUG L267 ransitionTransformer]: old formula: [2018-03-29 23:50:59,973 DEBUG L268 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)))) [2018-03-29 23:50:59,973 DEBUG L269 ransitionTransformer]: new formula: [2018-03-29 23:50:59,973 DEBUG L270 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)))) [2018-03-29 23:50:59,973 DEBUG L274 ransitionTransformer]: invars have changed [2018-03-29 23:50:59,974 DEBUG L275 ransitionTransformer]: old invars: [2018-03-29 23:50:59,974 DEBUG L276 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} [2018-03-29 23:50:59,974 DEBUG L277 ransitionTransformer]: new invars: [2018-03-29 23:50:59,974 DEBUG L278 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|} [2018-03-29 23:50:59,974 DEBUG L282 ransitionTransformer]: outvars have changed [2018-03-29 23:50:59,974 DEBUG L283 ransitionTransformer]: old outvars: [2018-03-29 23:50:59,975 DEBUG L284 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} [2018-03-29 23:50:59,975 DEBUG L285 ransitionTransformer]: new outvars: [2018-03-29 23:50:59,975 DEBUG L286 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|} [2018-03-29 23:50:59,975 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,976 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,976 DEBUG L259 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[] [2018-03-29 23:50:59,976 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,976 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,976 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,977 DEBUG L259 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[] [2018-03-29 23:50:59,977 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,977 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,977 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,977 DEBUG L259 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] [2018-03-29 23:50:59,978 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,978 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,978 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,978 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~mem1=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~mem1_3|} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~mem1] [2018-03-29 23:50:59,978 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,978 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,979 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,979 DEBUG L259 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] [2018-03-29 23:50:59,979 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,979 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,979 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,980 DEBUG L259 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] [2018-03-29 23:50:59,980 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,980 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,980 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,980 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~post0=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~post0_3|} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#t~post0] [2018-03-29 23:50:59,980 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,980 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,981 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,981 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:50:59,981 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,981 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,981 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,981 DEBUG L259 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|} AuxVars[] AssignedVars[ULTIMATE.start_#t~ret5] [2018-03-29 23:50:59,982 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,982 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,982 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:50:59,982 DEBUG L259 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|} AuxVars[] AssignedVars[main_#t~ret3] [2018-03-29 23:50:59,982 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:50:59,982 DEBUG L288 ransitionTransformer]: [2018-03-29 23:50:59,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 29.03 11:50:59 BasicIcfg [2018-03-29 23:50:59,984 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-03-29 23:50:59,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-29 23:50:59,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-29 23:50:59,988 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-29 23:50:59,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.03 11:50:50" (1/4) ... [2018-03-29 23:50:59,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30d0e60a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 11:50:59, skipping insertion in model container [2018-03-29 23:50:59,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 11:50:50" (2/4) ... [2018-03-29 23:50:59,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30d0e60a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 11:50:59, skipping insertion in model container [2018-03-29 23:50:59,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 11:50:51" (3/4) ... [2018-03-29 23:50:59,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30d0e60a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 11:50:59, skipping insertion in model container [2018-03-29 23:50:59,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 29.03 11:50:59" (4/4) ... [2018-03-29 23:50:59,991 INFO L107 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-03-29 23:51:00,000 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-29 23:51:00,008 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-03-29 23:51:00,038 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-29 23:51:00,039 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-29 23:51:00,039 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-29 23:51:00,039 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-29 23:51:00,039 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-29 23:51:00,039 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-29 23:51:00,039 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-29 23:51:00,039 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-29 23:51:00,039 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-29 23:51:00,040 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-29 23:51:00,050 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-03-29 23:51:00,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-03-29 23:51:00,055 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:00,055 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 23:51:00,056 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]=== [2018-03-29 23:51:00,059 INFO L82 PathProgramCache]: Analyzing trace with hash 2075056429, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 23:51:00,084 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:00,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:00,121 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:00,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:00,216 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:00,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:00,275 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 23:51:00,276 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-29 23:51:00,277 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-29 23:51:00,284 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-29 23:51:00,285 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-03-29 23:51:00,287 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 4 states. [2018-03-29 23:51:00,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:00,427 INFO L93 Difference]: Finished difference Result 141 states and 163 transitions. [2018-03-29 23:51:00,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-29 23:51:00,429 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-03-29 23:51:00,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:00,439 INFO L225 Difference]: With dead ends: 141 [2018-03-29 23:51:00,440 INFO L226 Difference]: Without dead ends: 84 [2018-03-29 23:51:00,443 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 [2018-03-29 23:51:00,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-03-29 23:51:00,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 68. [2018-03-29 23:51:00,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-03-29 23:51:00,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2018-03-29 23:51:00,482 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 16 [2018-03-29 23:51:00,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:00,483 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2018-03-29 23:51:00,483 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-29 23:51:00,483 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2018-03-29 23:51:00,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-03-29 23:51:00,484 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:00,484 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] [2018-03-29 23:51:00,484 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]=== [2018-03-29 23:51:00,484 INFO L82 PathProgramCache]: Analyzing trace with hash -493721660, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 23:51:00,494 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:00,517 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:00,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:00,554 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:00,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:00,607 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 23:51:00,607 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2018-03-29 23:51:00,609 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-29 23:51:00,609 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-29 23:51:00,609 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-03-29 23:51:00,609 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand 4 states. [2018-03-29 23:51:00,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:00,665 INFO L93 Difference]: Finished difference Result 82 states and 86 transitions. [2018-03-29 23:51:00,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-29 23:51:00,666 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-03-29 23:51:00,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:00,669 INFO L225 Difference]: With dead ends: 82 [2018-03-29 23:51:00,669 INFO L226 Difference]: Without dead ends: 81 [2018-03-29 23:51:00,670 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 [2018-03-29 23:51:00,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-03-29 23:51:00,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 71. [2018-03-29 23:51:00,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-03-29 23:51:00,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2018-03-29 23:51:00,678 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 25 [2018-03-29 23:51:00,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:00,678 INFO L459 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2018-03-29 23:51:00,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-29 23:51:00,679 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2018-03-29 23:51:00,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-03-29 23:51:00,679 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:00,680 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] [2018-03-29 23:51:00,680 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]=== [2018-03-29 23:51:00,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1874497955, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 23:51:00,689 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:00,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:00,707 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:00,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:00,734 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:00,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:00,781 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 23:51:00,781 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2018-03-29 23:51:00,781 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-29 23:51:00,781 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-29 23:51:00,782 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-03-29 23:51:00,782 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand 7 states. [2018-03-29 23:51:00,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:00,869 INFO L93 Difference]: Finished difference Result 150 states and 160 transitions. [2018-03-29 23:51:00,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-29 23:51:00,869 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-03-29 23:51:00,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:00,870 INFO L225 Difference]: With dead ends: 150 [2018-03-29 23:51:00,870 INFO L226 Difference]: Without dead ends: 95 [2018-03-29 23:51:00,871 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-03-29 23:51:00,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-03-29 23:51:00,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 82. [2018-03-29 23:51:00,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-03-29 23:51:00,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 86 transitions. [2018-03-29 23:51:00,880 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 86 transitions. Word has length 26 [2018-03-29 23:51:00,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:00,880 INFO L459 AbstractCegarLoop]: Abstraction has 82 states and 86 transitions. [2018-03-29 23:51:00,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-29 23:51:00,881 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 86 transitions. [2018-03-29 23:51:00,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-03-29 23:51:00,882 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:00,882 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] [2018-03-29 23:51:00,882 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]=== [2018-03-29 23:51:00,883 INFO L82 PathProgramCache]: Analyzing trace with hash 60105920, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 23:51:00,890 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:00,910 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:00,939 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:00,939 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:00,998 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:01,032 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 23:51:01,032 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-03-29 23:51:01,032 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-29 23:51:01,033 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-29 23:51:01,033 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-03-29 23:51:01,033 INFO L87 Difference]: Start difference. First operand 82 states and 86 transitions. Second operand 9 states. [2018-03-29 23:51:01,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:01,193 INFO L93 Difference]: Finished difference Result 97 states and 100 transitions. [2018-03-29 23:51:01,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-03-29 23:51:01,193 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2018-03-29 23:51:01,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:01,194 INFO L225 Difference]: With dead ends: 97 [2018-03-29 23:51:01,194 INFO L226 Difference]: Without dead ends: 96 [2018-03-29 23:51:01,195 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 [2018-03-29 23:51:01,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-03-29 23:51:01,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 81. [2018-03-29 23:51:01,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-03-29 23:51:01,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 85 transitions. [2018-03-29 23:51:01,202 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 85 transitions. Word has length 37 [2018-03-29 23:51:01,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:01,203 INFO L459 AbstractCegarLoop]: Abstraction has 81 states and 85 transitions. [2018-03-29 23:51:01,203 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-29 23:51:01,203 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 85 transitions. [2018-03-29 23:51:01,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-03-29 23:51:01,204 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:01,204 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] [2018-03-29 23:51:01,204 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]=== [2018-03-29 23:51:01,204 INFO L82 PathProgramCache]: Analyzing trace with hash -889632152, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 23:51:01,210 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:01,227 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:01,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:01,242 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:01,277 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:01,299 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:01,299 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-03-29 23:51:01,299 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-03-29 23:51:01,299 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-03-29 23:51:01,300 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-03-29 23:51:01,300 INFO L87 Difference]: Start difference. First operand 81 states and 85 transitions. Second operand 8 states. [2018-03-29 23:51:01,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:01,410 INFO L93 Difference]: Finished difference Result 130 states and 137 transitions. [2018-03-29 23:51:01,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-03-29 23:51:01,411 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 44 [2018-03-29 23:51:01,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:01,412 INFO L225 Difference]: With dead ends: 130 [2018-03-29 23:51:01,412 INFO L226 Difference]: Without dead ends: 110 [2018-03-29 23:51:01,412 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2018-03-29 23:51:01,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-03-29 23:51:01,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 100. [2018-03-29 23:51:01,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-03-29 23:51:01,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 105 transitions. [2018-03-29 23:51:01,422 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 105 transitions. Word has length 44 [2018-03-29 23:51:01,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:01,423 INFO L459 AbstractCegarLoop]: Abstraction has 100 states and 105 transitions. [2018-03-29 23:51:01,423 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-03-29 23:51:01,423 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 105 transitions. [2018-03-29 23:51:01,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-03-29 23:51:01,425 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:01,426 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] [2018-03-29 23:51:01,426 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]=== [2018-03-29 23:51:01,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1339146614, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 23:51:01,442 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:01,462 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:01,492 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-29 23:51:01,492 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 23:51:01,514 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 23:51:01,514 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-29 23:51:01,583 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-03-29 23:51:01,583 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:01,599 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-03-29 23:51:01,633 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:01,634 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 6 [2018-03-29 23:51:01,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-29 23:51:01,634 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-29 23:51:01,634 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-03-29 23:51:01,635 INFO L87 Difference]: Start difference. First operand 100 states and 105 transitions. Second operand 7 states. [2018-03-29 23:51:01,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:01,674 INFO L93 Difference]: Finished difference Result 100 states and 105 transitions. [2018-03-29 23:51:01,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-29 23:51:01,674 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2018-03-29 23:51:01,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:01,675 INFO L225 Difference]: With dead ends: 100 [2018-03-29 23:51:01,675 INFO L226 Difference]: Without dead ends: 99 [2018-03-29 23:51:01,676 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 [2018-03-29 23:51:01,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-03-29 23:51:01,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2018-03-29 23:51:01,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-03-29 23:51:01,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 104 transitions. [2018-03-29 23:51:01,685 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 104 transitions. Word has length 47 [2018-03-29 23:51:01,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:01,686 INFO L459 AbstractCegarLoop]: Abstraction has 99 states and 104 transitions. [2018-03-29 23:51:01,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-29 23:51:01,686 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 104 transitions. [2018-03-29 23:51:01,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-03-29 23:51:01,687 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:01,687 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] [2018-03-29 23:51:01,687 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]=== [2018-03-29 23:51:01,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1339146615, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 23:51:01,694 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:01,718 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:01,728 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-29 23:51:01,728 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 23:51:01,733 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 23:51:01,733 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-29 23:51:01,783 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-03-29 23:51:01,783 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:01,839 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-03-29 23:51:01,859 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:01,859 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2018-03-29 23:51:01,859 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-03-29 23:51:01,860 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-03-29 23:51:01,860 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-03-29 23:51:01,860 INFO L87 Difference]: Start difference. First operand 99 states and 104 transitions. Second operand 13 states. [2018-03-29 23:51:01,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:01,995 INFO L93 Difference]: Finished difference Result 108 states and 114 transitions. [2018-03-29 23:51:01,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-03-29 23:51:01,995 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 47 [2018-03-29 23:51:01,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:01,996 INFO L225 Difference]: With dead ends: 108 [2018-03-29 23:51:01,996 INFO L226 Difference]: Without dead ends: 107 [2018-03-29 23:51:01,997 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 [2018-03-29 23:51:01,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-03-29 23:51:02,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 100. [2018-03-29 23:51:02,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-03-29 23:51:02,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 105 transitions. [2018-03-29 23:51:02,007 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 105 transitions. Word has length 47 [2018-03-29 23:51:02,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:02,007 INFO L459 AbstractCegarLoop]: Abstraction has 100 states and 105 transitions. [2018-03-29 23:51:02,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-03-29 23:51:02,008 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 105 transitions. [2018-03-29 23:51:02,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-03-29 23:51:02,008 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:02,009 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] [2018-03-29 23:51:02,009 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]=== [2018-03-29 23:51:02,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1681138774, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 23:51:02,017 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:02,034 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:02,074 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:02,074 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:02,114 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:02,135 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:02,135 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 13 [2018-03-29 23:51:02,135 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-03-29 23:51:02,135 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-03-29 23:51:02,136 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-03-29 23:51:02,136 INFO L87 Difference]: Start difference. First operand 100 states and 105 transitions. Second operand 13 states. [2018-03-29 23:51:02,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:02,264 INFO L93 Difference]: Finished difference Result 192 states and 203 transitions. [2018-03-29 23:51:02,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-03-29 23:51:02,264 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2018-03-29 23:51:02,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:02,266 INFO L225 Difference]: With dead ends: 192 [2018-03-29 23:51:02,266 INFO L226 Difference]: Without dead ends: 130 [2018-03-29 23:51:02,267 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 95 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2018-03-29 23:51:02,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-03-29 23:51:02,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 119. [2018-03-29 23:51:02,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-03-29 23:51:02,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 124 transitions. [2018-03-29 23:51:02,274 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 124 transitions. Word has length 55 [2018-03-29 23:51:02,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:02,274 INFO L459 AbstractCegarLoop]: Abstraction has 119 states and 124 transitions. [2018-03-29 23:51:02,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-03-29 23:51:02,275 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 124 transitions. [2018-03-29 23:51:02,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-03-29 23:51:02,275 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:02,276 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] [2018-03-29 23:51:02,276 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]=== [2018-03-29 23:51:02,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1760067767, 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 [2018-03-29 23:51:02,282 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:02,305 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:02,352 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-03-29 23:51:02,352 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:02,411 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-03-29 23:51:02,432 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 23:51:02,432 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 10 [2018-03-29 23:51:02,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-03-29 23:51:02,432 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-03-29 23:51:02,433 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-03-29 23:51:02,433 INFO L87 Difference]: Start difference. First operand 119 states and 124 transitions. Second operand 10 states. [2018-03-29 23:51:02,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:02,546 INFO L93 Difference]: Finished difference Result 201 states and 209 transitions. [2018-03-29 23:51:02,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-03-29 23:51:02,546 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 76 [2018-03-29 23:51:02,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:02,547 INFO L225 Difference]: With dead ends: 201 [2018-03-29 23:51:02,547 INFO L226 Difference]: Without dead ends: 133 [2018-03-29 23:51:02,547 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 [2018-03-29 23:51:02,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-03-29 23:51:02,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 119. [2018-03-29 23:51:02,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-03-29 23:51:02,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 122 transitions. [2018-03-29 23:51:02,555 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 122 transitions. Word has length 76 [2018-03-29 23:51:02,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:02,556 INFO L459 AbstractCegarLoop]: Abstraction has 119 states and 122 transitions. [2018-03-29 23:51:02,556 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-03-29 23:51:02,556 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 122 transitions. [2018-03-29 23:51:02,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-03-29 23:51:02,557 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:02,558 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] [2018-03-29 23:51:02,558 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]=== [2018-03-29 23:51:02,558 INFO L82 PathProgramCache]: Analyzing trace with hash -2040661744, 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 [2018-03-29 23:51:02,571 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:02,594 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:02,609 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-03-29 23:51:02,609 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:02,645 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-03-29 23:51:02,666 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:02,666 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-03-29 23:51:02,666 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-03-29 23:51:02,666 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-03-29 23:51:02,666 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-03-29 23:51:02,666 INFO L87 Difference]: Start difference. First operand 119 states and 122 transitions. Second operand 8 states. [2018-03-29 23:51:02,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:02,741 INFO L93 Difference]: Finished difference Result 150 states and 156 transitions. [2018-03-29 23:51:02,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-03-29 23:51:02,741 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 85 [2018-03-29 23:51:02,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:02,743 INFO L225 Difference]: With dead ends: 150 [2018-03-29 23:51:02,743 INFO L226 Difference]: Without dead ends: 149 [2018-03-29 23:51:02,743 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-03-29 23:51:02,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-03-29 23:51:02,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 136. [2018-03-29 23:51:02,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-03-29 23:51:02,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 142 transitions. [2018-03-29 23:51:02,751 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 142 transitions. Word has length 85 [2018-03-29 23:51:02,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:02,751 INFO L459 AbstractCegarLoop]: Abstraction has 136 states and 142 transitions. [2018-03-29 23:51:02,751 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-03-29 23:51:02,752 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 142 transitions. [2018-03-29 23:51:02,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-03-29 23:51:02,753 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:02,753 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] [2018-03-29 23:51:02,753 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]=== [2018-03-29 23:51:02,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1163995608, 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 [2018-03-29 23:51:02,761 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:02,783 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:02,785 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-29 23:51:02,785 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 23:51:02,788 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 23:51:02,788 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-29 23:51:02,915 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 31 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-03-29 23:51:02,915 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:03,061 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 31 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-03-29 23:51:03,082 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:03,082 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2018-03-29 23:51:03,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-03-29 23:51:03,083 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-03-29 23:51:03,083 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2018-03-29 23:51:03,083 INFO L87 Difference]: Start difference. First operand 136 states and 142 transitions. Second operand 17 states. [2018-03-29 23:51:03,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:03,295 INFO L93 Difference]: Finished difference Result 144 states and 150 transitions. [2018-03-29 23:51:03,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-03-29 23:51:03,295 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 86 [2018-03-29 23:51:03,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:03,296 INFO L225 Difference]: With dead ends: 144 [2018-03-29 23:51:03,296 INFO L226 Difference]: Without dead ends: 143 [2018-03-29 23:51:03,297 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 154 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2018-03-29 23:51:03,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-03-29 23:51:03,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 137. [2018-03-29 23:51:03,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-03-29 23:51:03,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 142 transitions. [2018-03-29 23:51:03,302 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 142 transitions. Word has length 86 [2018-03-29 23:51:03,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:03,302 INFO L459 AbstractCegarLoop]: Abstraction has 137 states and 142 transitions. [2018-03-29 23:51:03,303 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-03-29 23:51:03,303 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 142 transitions. [2018-03-29 23:51:03,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-03-29 23:51:03,303 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:03,303 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] [2018-03-29 23:51:03,303 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]=== [2018-03-29 23:51:03,304 INFO L82 PathProgramCache]: Analyzing trace with hash -971766928, 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 [2018-03-29 23:51:03,310 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:03,331 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:03,411 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 91 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-03-29 23:51:03,412 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:03,487 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 91 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-03-29 23:51:03,510 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:03,510 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 19 [2018-03-29 23:51:03,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-03-29 23:51:03,511 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-03-29 23:51:03,511 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2018-03-29 23:51:03,511 INFO L87 Difference]: Start difference. First operand 137 states and 142 transitions. Second operand 19 states. [2018-03-29 23:51:03,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:03,781 INFO L93 Difference]: Finished difference Result 256 states and 269 transitions. [2018-03-29 23:51:03,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-03-29 23:51:03,782 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 103 [2018-03-29 23:51:03,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:03,784 INFO L225 Difference]: With dead ends: 256 [2018-03-29 23:51:03,784 INFO L226 Difference]: Without dead ends: 184 [2018-03-29 23:51:03,785 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 181 SyntacticMatches, 7 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=212, Invalid=844, Unknown=0, NotChecked=0, Total=1056 [2018-03-29 23:51:03,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-03-29 23:51:03,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 168. [2018-03-29 23:51:03,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-03-29 23:51:03,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 174 transitions. [2018-03-29 23:51:03,796 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 174 transitions. Word has length 103 [2018-03-29 23:51:03,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:03,797 INFO L459 AbstractCegarLoop]: Abstraction has 168 states and 174 transitions. [2018-03-29 23:51:03,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-03-29 23:51:03,797 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 174 transitions. [2018-03-29 23:51:03,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-03-29 23:51:03,798 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:03,798 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] [2018-03-29 23:51:03,798 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]=== [2018-03-29 23:51:03,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1278886500, 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 [2018-03-29 23:51:03,809 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:03,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:03,839 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:03,899 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 70 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-03-29 23:51:03,900 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:03,986 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 70 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-03-29 23:51:04,007 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:04,007 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 16 [2018-03-29 23:51:04,007 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-29 23:51:04,008 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-29 23:51:04,008 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2018-03-29 23:51:04,008 INFO L87 Difference]: Start difference. First operand 168 states and 174 transitions. Second operand 16 states. [2018-03-29 23:51:04,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:04,273 INFO L93 Difference]: Finished difference Result 256 states and 266 transitions. [2018-03-29 23:51:04,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-03-29 23:51:04,273 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 104 [2018-03-29 23:51:04,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:04,275 INFO L225 Difference]: With dead ends: 256 [2018-03-29 23:51:04,275 INFO L226 Difference]: Without dead ends: 178 [2018-03-29 23:51:04,275 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 187 SyntacticMatches, 7 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2018-03-29 23:51:04,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-03-29 23:51:04,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 168. [2018-03-29 23:51:04,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-03-29 23:51:04,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 172 transitions. [2018-03-29 23:51:04,285 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 172 transitions. Word has length 104 [2018-03-29 23:51:04,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:04,285 INFO L459 AbstractCegarLoop]: Abstraction has 168 states and 172 transitions. [2018-03-29 23:51:04,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-29 23:51:04,285 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 172 transitions. [2018-03-29 23:51:04,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-03-29 23:51:04,286 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:04,286 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] [2018-03-29 23:51:04,286 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]=== [2018-03-29 23:51:04,286 INFO L82 PathProgramCache]: Analyzing trace with hash 790033345, 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 [2018-03-29 23:51:04,292 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:04,328 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:04,411 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-03-29 23:51:04,411 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:04,522 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-03-29 23:51:04,544 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:04,545 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2018-03-29 23:51:04,545 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-29 23:51:04,545 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-29 23:51:04,546 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2018-03-29 23:51:04,546 INFO L87 Difference]: Start difference. First operand 168 states and 172 transitions. Second operand 16 states. [2018-03-29 23:51:04,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:04,702 INFO L93 Difference]: Finished difference Result 239 states and 250 transitions. [2018-03-29 23:51:04,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-03-29 23:51:04,704 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 113 [2018-03-29 23:51:04,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:04,706 INFO L225 Difference]: With dead ends: 239 [2018-03-29 23:51:04,706 INFO L226 Difference]: Without dead ends: 219 [2018-03-29 23:51:04,707 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 [2018-03-29 23:51:04,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2018-03-29 23:51:04,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 209. [2018-03-29 23:51:04,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2018-03-29 23:51:04,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 216 transitions. [2018-03-29 23:51:04,719 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 216 transitions. Word has length 113 [2018-03-29 23:51:04,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:04,719 INFO L459 AbstractCegarLoop]: Abstraction has 209 states and 216 transitions. [2018-03-29 23:51:04,719 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-29 23:51:04,719 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 216 transitions. [2018-03-29 23:51:04,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-03-29 23:51:04,721 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:04,721 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] [2018-03-29 23:51:04,721 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]=== [2018-03-29 23:51:04,721 INFO L82 PathProgramCache]: Analyzing trace with hash 593679569, 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 [2018-03-29 23:51:04,737 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:04,771 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:04,884 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 165 proven. 48 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-03-29 23:51:04,884 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:05,057 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 165 proven. 48 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-03-29 23:51:05,078 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:05,078 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 25 [2018-03-29 23:51:05,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-03-29 23:51:05,078 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-03-29 23:51:05,079 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600 [2018-03-29 23:51:05,079 INFO L87 Difference]: Start difference. First operand 209 states and 216 transitions. Second operand 25 states. [2018-03-29 23:51:05,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:05,478 INFO L93 Difference]: Finished difference Result 359 states and 374 transitions. [2018-03-29 23:51:05,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-03-29 23:51:05,478 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 142 [2018-03-29 23:51:05,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:05,480 INFO L225 Difference]: With dead ends: 359 [2018-03-29 23:51:05,480 INFO L226 Difference]: Without dead ends: 257 [2018-03-29 23:51:05,481 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 251 SyntacticMatches, 9 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=363, Invalid=1617, Unknown=0, NotChecked=0, Total=1980 [2018-03-29 23:51:05,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2018-03-29 23:51:05,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 246. [2018-03-29 23:51:05,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2018-03-29 23:51:05,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 253 transitions. [2018-03-29 23:51:05,491 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 253 transitions. Word has length 142 [2018-03-29 23:51:05,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:05,492 INFO L459 AbstractCegarLoop]: Abstraction has 246 states and 253 transitions. [2018-03-29 23:51:05,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-03-29 23:51:05,492 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 253 transitions. [2018-03-29 23:51:05,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-03-29 23:51:05,493 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:05,493 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] [2018-03-29 23:51:05,493 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]=== [2018-03-29 23:51:05,493 INFO L82 PathProgramCache]: Analyzing trace with hash -28104624, 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 [2018-03-29 23:51:05,499 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:05,535 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:05,664 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 384 proven. 13 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-03-29 23:51:05,664 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:05,852 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 384 proven. 13 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-03-29 23:51:05,874 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:05,874 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 22 [2018-03-29 23:51:05,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-03-29 23:51:05,874 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-03-29 23:51:05,875 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2018-03-29 23:51:05,875 INFO L87 Difference]: Start difference. First operand 246 states and 253 transitions. Second operand 22 states. [2018-03-29 23:51:06,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:06,194 INFO L93 Difference]: Finished difference Result 368 states and 382 transitions. [2018-03-29 23:51:06,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-03-29 23:51:06,194 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 181 [2018-03-29 23:51:06,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:06,196 INFO L225 Difference]: With dead ends: 368 [2018-03-29 23:51:06,196 INFO L226 Difference]: Without dead ends: 260 [2018-03-29 23:51:06,197 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 333 SyntacticMatches, 9 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=242, Invalid=1018, Unknown=0, NotChecked=0, Total=1260 [2018-03-29 23:51:06,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2018-03-29 23:51:06,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 246. [2018-03-29 23:51:06,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2018-03-29 23:51:06,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 251 transitions. [2018-03-29 23:51:06,206 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 251 transitions. Word has length 181 [2018-03-29 23:51:06,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:06,207 INFO L459 AbstractCegarLoop]: Abstraction has 246 states and 251 transitions. [2018-03-29 23:51:06,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-03-29 23:51:06,207 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 251 transitions. [2018-03-29 23:51:06,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-03-29 23:51:06,209 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:06,209 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] [2018-03-29 23:51:06,209 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]=== [2018-03-29 23:51:06,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1315664535, 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 [2018-03-29 23:51:06,224 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:06,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:06,268 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:06,326 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 212 proven. 36 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2018-03-29 23:51:06,326 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:06,422 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 212 proven. 36 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2018-03-29 23:51:06,444 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:06,444 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2018-03-29 23:51:06,444 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-29 23:51:06,444 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-29 23:51:06,445 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-03-29 23:51:06,445 INFO L87 Difference]: Start difference. First operand 246 states and 251 transitions. Second operand 16 states. [2018-03-29 23:51:06,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:06,763 INFO L93 Difference]: Finished difference Result 303 states and 323 transitions. [2018-03-29 23:51:06,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-03-29 23:51:06,763 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 190 [2018-03-29 23:51:06,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:06,764 INFO L225 Difference]: With dead ends: 303 [2018-03-29 23:51:06,765 INFO L226 Difference]: Without dead ends: 302 [2018-03-29 23:51:06,765 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2018-03-29 23:51:06,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2018-03-29 23:51:06,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 281. [2018-03-29 23:51:06,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2018-03-29 23:51:06,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 293 transitions. [2018-03-29 23:51:06,775 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 293 transitions. Word has length 190 [2018-03-29 23:51:06,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:06,775 INFO L459 AbstractCegarLoop]: Abstraction has 281 states and 293 transitions. [2018-03-29 23:51:06,775 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-29 23:51:06,776 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 293 transitions. [2018-03-29 23:51:06,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-03-29 23:51:06,776 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:06,776 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] [2018-03-29 23:51:06,777 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]=== [2018-03-29 23:51:06,777 INFO L82 PathProgramCache]: Analyzing trace with hash 2130895153, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 23:51:06,783 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:06,828 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:06,844 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-29 23:51:06,844 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 23:51:06,887 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 23:51:06,887 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-29 23:51:07,194 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 238 proven. 47 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2018-03-29 23:51:07,194 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:07,447 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 238 proven. 47 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2018-03-29 23:51:07,469 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:07,469 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2018-03-29 23:51:07,470 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-03-29 23:51:07,470 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-03-29 23:51:07,470 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2018-03-29 23:51:07,470 INFO L87 Difference]: Start difference. First operand 281 states and 293 transitions. Second operand 25 states. [2018-03-29 23:51:08,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:08,266 INFO L93 Difference]: Finished difference Result 295 states and 315 transitions. [2018-03-29 23:51:08,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-03-29 23:51:08,266 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 191 [2018-03-29 23:51:08,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:08,269 INFO L225 Difference]: With dead ends: 295 [2018-03-29 23:51:08,269 INFO L226 Difference]: Without dead ends: 294 [2018-03-29 23:51:08,270 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 352 SyntacticMatches, 7 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=475, Invalid=1595, Unknown=0, NotChecked=0, Total=2070 [2018-03-29 23:51:08,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2018-03-29 23:51:08,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 282. [2018-03-29 23:51:08,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2018-03-29 23:51:08,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 291 transitions. [2018-03-29 23:51:08,285 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 291 transitions. Word has length 191 [2018-03-29 23:51:08,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:08,285 INFO L459 AbstractCegarLoop]: Abstraction has 282 states and 291 transitions. [2018-03-29 23:51:08,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-03-29 23:51:08,286 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 291 transitions. [2018-03-29 23:51:08,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-03-29 23:51:08,287 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:08,287 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] [2018-03-29 23:51:08,287 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]=== [2018-03-29 23:51:08,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1039812649, 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 [2018-03-29 23:51:08,296 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:08,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:08,355 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:08,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 660 proven. 86 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2018-03-29 23:51:08,570 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:08,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 660 proven. 86 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2018-03-29 23:51:08,895 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:08,895 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 31 [2018-03-29 23:51:08,895 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-03-29 23:51:08,896 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-03-29 23:51:08,896 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=789, Unknown=0, NotChecked=0, Total=930 [2018-03-29 23:51:08,896 INFO L87 Difference]: Start difference. First operand 282 states and 291 transitions. Second operand 31 states. [2018-03-29 23:51:09,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:09,403 INFO L93 Difference]: Finished difference Result 466 states and 485 transitions. [2018-03-29 23:51:09,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-03-29 23:51:09,403 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 226 [2018-03-29 23:51:09,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:09,406 INFO L225 Difference]: With dead ends: 466 [2018-03-29 23:51:09,406 INFO L226 Difference]: Without dead ends: 339 [2018-03-29 23:51:09,407 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 411 SyntacticMatches, 11 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=552, Invalid=2640, Unknown=0, NotChecked=0, Total=3192 [2018-03-29 23:51:09,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2018-03-29 23:51:09,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 328. [2018-03-29 23:51:09,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2018-03-29 23:51:09,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 337 transitions. [2018-03-29 23:51:09,423 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 337 transitions. Word has length 226 [2018-03-29 23:51:09,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:09,424 INFO L459 AbstractCegarLoop]: Abstraction has 328 states and 337 transitions. [2018-03-29 23:51:09,424 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-03-29 23:51:09,424 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 337 transitions. [2018-03-29 23:51:09,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2018-03-29 23:51:09,426 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:09,426 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] [2018-03-29 23:51:09,426 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]=== [2018-03-29 23:51:09,427 INFO L82 PathProgramCache]: Analyzing trace with hash 420644509, 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 [2018-03-29 23:51:09,437 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:09,494 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:09,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1558 backedges. 1064 proven. 33 refuted. 0 times theorem prover too weak. 461 trivial. 0 not checked. [2018-03-29 23:51:09,640 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:09,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1558 backedges. 1064 proven. 33 refuted. 0 times theorem prover too weak. 461 trivial. 0 not checked. [2018-03-29 23:51:09,873 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:09,873 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 28 [2018-03-29 23:51:09,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-03-29 23:51:09,874 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-03-29 23:51:09,874 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=630, Unknown=0, NotChecked=0, Total=756 [2018-03-29 23:51:09,874 INFO L87 Difference]: Start difference. First operand 328 states and 337 transitions. Second operand 28 states. [2018-03-29 23:51:10,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:10,230 INFO L93 Difference]: Finished difference Result 471 states and 488 transitions. [2018-03-29 23:51:10,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-03-29 23:51:10,230 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 274 [2018-03-29 23:51:10,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:10,231 INFO L225 Difference]: With dead ends: 471 [2018-03-29 23:51:10,231 INFO L226 Difference]: Without dead ends: 338 [2018-03-29 23:51:10,232 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 511 SyntacticMatches, 11 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 679 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=390, Invalid=1772, Unknown=0, NotChecked=0, Total=2162 [2018-03-29 23:51:10,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2018-03-29 23:51:10,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 328. [2018-03-29 23:51:10,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2018-03-29 23:51:10,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 335 transitions. [2018-03-29 23:51:10,242 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 335 transitions. Word has length 274 [2018-03-29 23:51:10,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:10,243 INFO L459 AbstractCegarLoop]: Abstraction has 328 states and 335 transitions. [2018-03-29 23:51:10,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-03-29 23:51:10,243 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 335 transitions. [2018-03-29 23:51:10,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2018-03-29 23:51:10,244 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:10,244 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] [2018-03-29 23:51:10,244 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]=== [2018-03-29 23:51:10,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1739692822, 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 [2018-03-29 23:51:10,250 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:10,303 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:10,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1715 backedges. 964 proven. 135 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2018-03-29 23:51:10,531 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:10,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1715 backedges. 964 proven. 135 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2018-03-29 23:51:10,808 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:10,808 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 37 [2018-03-29 23:51:10,808 INFO L442 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-03-29 23:51:10,809 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-03-29 23:51:10,809 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=1139, Unknown=0, NotChecked=0, Total=1332 [2018-03-29 23:51:10,809 INFO L87 Difference]: Start difference. First operand 328 states and 335 transitions. Second operand 37 states. [2018-03-29 23:51:11,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:11,539 INFO L93 Difference]: Finished difference Result 510 states and 525 transitions. [2018-03-29 23:51:11,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-03-29 23:51:11,539 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 283 [2018-03-29 23:51:11,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:11,541 INFO L225 Difference]: With dead ends: 510 [2018-03-29 23:51:11,541 INFO L226 Difference]: Without dead ends: 394 [2018-03-29 23:51:11,542 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 597 GetRequests, 517 SyntacticMatches, 13 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1112 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=779, Invalid=3913, Unknown=0, NotChecked=0, Total=4692 [2018-03-29 23:51:11,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2018-03-29 23:51:11,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 383. [2018-03-29 23:51:11,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2018-03-29 23:51:11,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 390 transitions. [2018-03-29 23:51:11,554 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 390 transitions. Word has length 283 [2018-03-29 23:51:11,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:11,554 INFO L459 AbstractCegarLoop]: Abstraction has 383 states and 390 transitions. [2018-03-29 23:51:11,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-03-29 23:51:11,555 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 390 transitions. [2018-03-29 23:51:11,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2018-03-29 23:51:11,556 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:11,556 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] [2018-03-29 23:51:11,556 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]=== [2018-03-29 23:51:11,556 INFO L82 PathProgramCache]: Analyzing trace with hash 503129128, 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 [2018-03-29 23:51:11,562 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:11,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:11,626 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:11,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 1337 proven. 62 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2018-03-29 23:51:11,839 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:12,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 697 proven. 230 refuted. 0 times theorem prover too weak. 1157 trivial. 0 not checked. [2018-03-29 23:51:12,249 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:12,249 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 34 [2018-03-29 23:51:12,250 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-03-29 23:51:12,250 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-03-29 23:51:12,250 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=946, Unknown=0, NotChecked=0, Total=1122 [2018-03-29 23:51:12,250 INFO L87 Difference]: Start difference. First operand 383 states and 390 transitions. Second operand 34 states. [2018-03-29 23:51:13,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:13,138 INFO L93 Difference]: Finished difference Result 515 states and 527 transitions. [2018-03-29 23:51:13,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-03-29 23:51:13,138 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 332 [2018-03-29 23:51:13,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:13,141 INFO L225 Difference]: With dead ends: 515 [2018-03-29 23:51:13,141 INFO L226 Difference]: Without dead ends: 393 [2018-03-29 23:51:13,143 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 688 GetRequests, 619 SyntacticMatches, 13 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1105 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=572, Invalid=2734, Unknown=0, NotChecked=0, Total=3306 [2018-03-29 23:51:13,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2018-03-29 23:51:13,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 383. [2018-03-29 23:51:13,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2018-03-29 23:51:13,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 388 transitions. [2018-03-29 23:51:13,160 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 388 transitions. Word has length 332 [2018-03-29 23:51:13,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:13,161 INFO L459 AbstractCegarLoop]: Abstraction has 383 states and 388 transitions. [2018-03-29 23:51:13,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-03-29 23:51:13,161 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 388 transitions. [2018-03-29 23:51:13,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2018-03-29 23:51:13,163 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:13,164 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] [2018-03-29 23:51:13,164 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]=== [2018-03-29 23:51:13,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1776871824, 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 [2018-03-29 23:51:13,173 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:13,251 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:13,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2796 backedges. 1325 proven. 195 refuted. 0 times theorem prover too weak. 1276 trivial. 0 not checked. [2018-03-29 23:51:13,990 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:14,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2796 backedges. 1325 proven. 195 refuted. 0 times theorem prover too weak. 1276 trivial. 0 not checked. [2018-03-29 23:51:14,492 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:14,493 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 43 [2018-03-29 23:51:14,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-03-29 23:51:14,493 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-03-29 23:51:14,494 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=1553, Unknown=0, NotChecked=0, Total=1806 [2018-03-29 23:51:14,494 INFO L87 Difference]: Start difference. First operand 383 states and 388 transitions. Second operand 43 states. [2018-03-29 23:51:15,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:15,486 INFO L93 Difference]: Finished difference Result 574 states and 587 transitions. [2018-03-29 23:51:15,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-03-29 23:51:15,487 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 349 [2018-03-29 23:51:15,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:15,490 INFO L225 Difference]: With dead ends: 574 [2018-03-29 23:51:15,490 INFO L226 Difference]: Without dead ends: 466 [2018-03-29 23:51:15,491 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 735 GetRequests, 641 SyntacticMatches, 15 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1590 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1044, Invalid=5436, Unknown=0, NotChecked=0, Total=6480 [2018-03-29 23:51:15,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2018-03-29 23:51:15,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 450. [2018-03-29 23:51:15,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2018-03-29 23:51:15,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 456 transitions. [2018-03-29 23:51:15,508 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 456 transitions. Word has length 349 [2018-03-29 23:51:15,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:15,509 INFO L459 AbstractCegarLoop]: Abstraction has 450 states and 456 transitions. [2018-03-29 23:51:15,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-03-29 23:51:15,509 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 456 transitions. [2018-03-29 23:51:15,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2018-03-29 23:51:15,512 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:15,512 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] [2018-03-29 23:51:15,512 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]=== [2018-03-29 23:51:15,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1970431108, 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 [2018-03-29 23:51:15,521 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:15,607 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:15,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2445 backedges. 1058 proven. 100 refuted. 0 times theorem prover too weak. 1287 trivial. 0 not checked. [2018-03-29 23:51:15,884 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:16,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2445 backedges. 1058 proven. 100 refuted. 0 times theorem prover too weak. 1287 trivial. 0 not checked. [2018-03-29 23:51:16,373 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:16,373 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 40 [2018-03-29 23:51:16,374 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-03-29 23:51:16,374 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-03-29 23:51:16,374 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=1326, Unknown=0, NotChecked=0, Total=1560 [2018-03-29 23:51:16,374 INFO L87 Difference]: Start difference. First operand 450 states and 456 transitions. Second operand 40 states. [2018-03-29 23:51:16,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:16,878 INFO L93 Difference]: Finished difference Result 574 states and 584 transitions. [2018-03-29 23:51:16,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-03-29 23:51:16,878 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 350 [2018-03-29 23:51:16,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:16,880 INFO L225 Difference]: With dead ends: 574 [2018-03-29 23:51:16,881 INFO L226 Difference]: Without dead ends: 460 [2018-03-29 23:51:16,882 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 729 GetRequests, 647 SyntacticMatches, 15 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1634 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=788, Invalid=3904, Unknown=0, NotChecked=0, Total=4692 [2018-03-29 23:51:16,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2018-03-29 23:51:16,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 450. [2018-03-29 23:51:16,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2018-03-29 23:51:16,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 454 transitions. [2018-03-29 23:51:16,893 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 454 transitions. Word has length 350 [2018-03-29 23:51:16,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:16,894 INFO L459 AbstractCegarLoop]: Abstraction has 450 states and 454 transitions. [2018-03-29 23:51:16,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-03-29 23:51:16,894 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 454 transitions. [2018-03-29 23:51:16,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2018-03-29 23:51:16,895 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:16,895 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] [2018-03-29 23:51:16,896 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]=== [2018-03-29 23:51:16,896 INFO L82 PathProgramCache]: Analyzing trace with hash 790278625, 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 [2018-03-29 23:51:16,914 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:16,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:16,989 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:17,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2639 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 2394 trivial. 0 not checked. [2018-03-29 23:51:17,329 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:17,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2639 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 2394 trivial. 0 not checked. [2018-03-29 23:51:17,562 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:17,563 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2018-03-29 23:51:17,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-03-29 23:51:17,563 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-03-29 23:51:17,564 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2018-03-29 23:51:17,564 INFO L87 Difference]: Start difference. First operand 450 states and 454 transitions. Second operand 32 states. [2018-03-29 23:51:17,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:17,990 INFO L93 Difference]: Finished difference Result 565 states and 584 transitions. [2018-03-29 23:51:17,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-03-29 23:51:17,990 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 359 [2018-03-29 23:51:17,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:17,992 INFO L225 Difference]: With dead ends: 565 [2018-03-29 23:51:17,992 INFO L226 Difference]: Without dead ends: 545 [2018-03-29 23:51:17,993 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 745 GetRequests, 687 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1155, Invalid=2385, Unknown=0, NotChecked=0, Total=3540 [2018-03-29 23:51:17,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2018-03-29 23:51:18,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 535. [2018-03-29 23:51:18,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 535 states. [2018-03-29 23:51:18,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 546 transitions. [2018-03-29 23:51:18,008 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 546 transitions. Word has length 359 [2018-03-29 23:51:18,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:18,008 INFO L459 AbstractCegarLoop]: Abstraction has 535 states and 546 transitions. [2018-03-29 23:51:18,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-03-29 23:51:18,008 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 546 transitions. [2018-03-29 23:51:18,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2018-03-29 23:51:18,010 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:18,010 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] [2018-03-29 23:51:18,011 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]=== [2018-03-29 23:51:18,011 INFO L82 PathProgramCache]: Analyzing trace with hash 2144275185, 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 [2018-03-29 23:51:18,021 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:18,110 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:18,567 INFO L134 CoverageAnalysis]: Checked inductivity of 4403 backedges. 1743 proven. 266 refuted. 0 times theorem prover too weak. 2394 trivial. 0 not checked. [2018-03-29 23:51:18,567 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:18,963 INFO L134 CoverageAnalysis]: Checked inductivity of 4403 backedges. 1743 proven. 266 refuted. 0 times theorem prover too weak. 2394 trivial. 0 not checked. [2018-03-29 23:51:18,984 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:18,984 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 49 [2018-03-29 23:51:18,985 INFO L442 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-03-29 23:51:18,985 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-03-29 23:51:18,985 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=2031, Unknown=0, NotChecked=0, Total=2352 [2018-03-29 23:51:18,986 INFO L87 Difference]: Start difference. First operand 535 states and 546 transitions. Second operand 49 states. [2018-03-29 23:51:20,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:20,032 INFO L93 Difference]: Finished difference Result 801 states and 824 transitions. [2018-03-29 23:51:20,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-03-29 23:51:20,032 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 424 [2018-03-29 23:51:20,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:20,034 INFO L225 Difference]: With dead ends: 801 [2018-03-29 23:51:20,034 INFO L226 Difference]: Without dead ends: 619 [2018-03-29 23:51:20,036 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 891 GetRequests, 783 SyntacticMatches, 17 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2153 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1347, Invalid=7209, Unknown=0, NotChecked=0, Total=8556 [2018-03-29 23:51:20,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2018-03-29 23:51:20,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 608. [2018-03-29 23:51:20,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2018-03-29 23:51:20,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 619 transitions. [2018-03-29 23:51:20,053 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 619 transitions. Word has length 424 [2018-03-29 23:51:20,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:20,053 INFO L459 AbstractCegarLoop]: Abstraction has 608 states and 619 transitions. [2018-03-29 23:51:20,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-03-29 23:51:20,054 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 619 transitions. [2018-03-29 23:51:20,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2018-03-29 23:51:20,057 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:20,057 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] [2018-03-29 23:51:20,057 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]=== [2018-03-29 23:51:20,057 INFO L82 PathProgramCache]: Analyzing trace with hash 365591280, 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 [2018-03-29 23:51:20,064 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:20,162 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:20,572 INFO L134 CoverageAnalysis]: Checked inductivity of 6379 backedges. 3614 proven. 147 refuted. 0 times theorem prover too weak. 2618 trivial. 0 not checked. [2018-03-29 23:51:20,572 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:21,160 INFO L134 CoverageAnalysis]: Checked inductivity of 6379 backedges. 3614 proven. 147 refuted. 0 times theorem prover too weak. 2618 trivial. 0 not checked. [2018-03-29 23:51:21,182 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:21,182 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 46 [2018-03-29 23:51:21,183 INFO L442 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-03-29 23:51:21,183 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-03-29 23:51:21,184 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=1770, Unknown=0, NotChecked=0, Total=2070 [2018-03-29 23:51:21,184 INFO L87 Difference]: Start difference. First operand 608 states and 619 transitions. Second operand 46 states. [2018-03-29 23:51:21,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:21,903 INFO L93 Difference]: Finished difference Result 810 states and 836 transitions. [2018-03-29 23:51:21,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-03-29 23:51:21,904 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 499 [2018-03-29 23:51:21,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:21,905 INFO L225 Difference]: With dead ends: 810 [2018-03-29 23:51:21,906 INFO L226 Difference]: Without dead ends: 622 [2018-03-29 23:51:21,907 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1032 GetRequests, 937 SyntacticMatches, 17 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2266 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1038, Invalid=5282, Unknown=0, NotChecked=0, Total=6320 [2018-03-29 23:51:21,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2018-03-29 23:51:21,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 608. [2018-03-29 23:51:21,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2018-03-29 23:51:21,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 617 transitions. [2018-03-29 23:51:21,921 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 617 transitions. Word has length 499 [2018-03-29 23:51:21,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:21,921 INFO L459 AbstractCegarLoop]: Abstraction has 608 states and 617 transitions. [2018-03-29 23:51:21,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-03-29 23:51:21,921 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 617 transitions. [2018-03-29 23:51:21,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2018-03-29 23:51:21,923 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:21,923 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] [2018-03-29 23:51:21,924 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]=== [2018-03-29 23:51:21,924 INFO L82 PathProgramCache]: Analyzing trace with hash 756588023, 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 [2018-03-29 23:51:21,936 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:22,042 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:22,422 INFO L134 CoverageAnalysis]: Checked inductivity of 6704 backedges. 1976 proven. 210 refuted. 0 times theorem prover too weak. 4518 trivial. 0 not checked. [2018-03-29 23:51:22,422 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:22,797 INFO L134 CoverageAnalysis]: Checked inductivity of 6704 backedges. 1976 proven. 210 refuted. 0 times theorem prover too weak. 4518 trivial. 0 not checked. [2018-03-29 23:51:22,818 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:22,818 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2018-03-29 23:51:22,819 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-03-29 23:51:22,819 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-03-29 23:51:22,819 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=818, Unknown=0, NotChecked=0, Total=992 [2018-03-29 23:51:22,819 INFO L87 Difference]: Start difference. First operand 608 states and 617 transitions. Second operand 32 states. [2018-03-29 23:51:24,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:24,001 INFO L93 Difference]: Finished difference Result 717 states and 789 transitions. [2018-03-29 23:51:24,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-03-29 23:51:24,001 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 508 [2018-03-29 23:51:24,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:24,003 INFO L225 Difference]: With dead ends: 717 [2018-03-29 23:51:24,004 INFO L226 Difference]: Without dead ends: 716 [2018-03-29 23:51:24,004 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1055 GetRequests, 991 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1096, Invalid=3194, Unknown=0, NotChecked=0, Total=4290 [2018-03-29 23:51:24,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2018-03-29 23:51:24,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 679. [2018-03-29 23:51:24,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 679 states. [2018-03-29 23:51:24,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 703 transitions. [2018-03-29 23:51:24,032 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 703 transitions. Word has length 508 [2018-03-29 23:51:24,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:24,033 INFO L459 AbstractCegarLoop]: Abstraction has 679 states and 703 transitions. [2018-03-29 23:51:24,033 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-03-29 23:51:24,033 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 703 transitions. [2018-03-29 23:51:24,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2018-03-29 23:51:24,037 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:24,037 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] [2018-03-29 23:51:24,037 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]=== [2018-03-29 23:51:24,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1979392465, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 23:51:24,043 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:24,153 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:24,157 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-29 23:51:24,157 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 23:51:24,161 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 23:51:24,161 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-29 23:51:25,078 INFO L134 CoverageAnalysis]: Checked inductivity of 6739 backedges. 2044 proven. 233 refuted. 0 times theorem prover too weak. 4462 trivial. 0 not checked. [2018-03-29 23:51:25,078 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:25,691 INFO L134 CoverageAnalysis]: Checked inductivity of 6739 backedges. 2044 proven. 233 refuted. 0 times theorem prover too weak. 4462 trivial. 0 not checked. [2018-03-29 23:51:25,712 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:25,712 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20] total 40 [2018-03-29 23:51:25,712 INFO L442 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-03-29 23:51:25,713 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-03-29 23:51:25,713 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=1395, Unknown=0, NotChecked=0, Total=1640 [2018-03-29 23:51:25,713 INFO L87 Difference]: Start difference. First operand 679 states and 703 transitions. Second operand 41 states. [2018-03-29 23:51:28,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:28,086 INFO L93 Difference]: Finished difference Result 705 states and 777 transitions. [2018-03-29 23:51:28,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-03-29 23:51:28,086 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 509 [2018-03-29 23:51:28,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:28,089 INFO L225 Difference]: With dead ends: 705 [2018-03-29 23:51:28,090 INFO L226 Difference]: Without dead ends: 704 [2018-03-29 23:51:28,091 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1063 GetRequests, 964 SyntacticMatches, 15 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1533 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1587, Invalid=5723, Unknown=0, NotChecked=0, Total=7310 [2018-03-29 23:51:28,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2018-03-29 23:51:28,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 680. [2018-03-29 23:51:28,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 680 states. [2018-03-29 23:51:28,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 697 transitions. [2018-03-29 23:51:28,115 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 697 transitions. Word has length 509 [2018-03-29 23:51:28,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:28,116 INFO L459 AbstractCegarLoop]: Abstraction has 680 states and 697 transitions. [2018-03-29 23:51:28,116 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-03-29 23:51:28,116 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 697 transitions. [2018-03-29 23:51:28,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2018-03-29 23:51:28,120 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:28,121 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] [2018-03-29 23:51:28,121 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]=== [2018-03-29 23:51:28,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1266210697, 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 [2018-03-29 23:51:28,131 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:28,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:28,261 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:28,942 INFO L134 CoverageAnalysis]: Checked inductivity of 9628 backedges. 4954 proven. 348 refuted. 0 times theorem prover too weak. 4326 trivial. 0 not checked. [2018-03-29 23:51:28,942 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:29,494 INFO L134 CoverageAnalysis]: Checked inductivity of 9628 backedges. 4954 proven. 348 refuted. 0 times theorem prover too weak. 4326 trivial. 0 not checked. [2018-03-29 23:51:29,516 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:29,516 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 55 [2018-03-29 23:51:29,517 INFO L442 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-03-29 23:51:29,517 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-03-29 23:51:29,518 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=2573, Unknown=0, NotChecked=0, Total=2970 [2018-03-29 23:51:29,518 INFO L87 Difference]: Start difference. First operand 680 states and 697 transitions. Second operand 55 states. [2018-03-29 23:51:30,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:30,817 INFO L93 Difference]: Finished difference Result 1016 states and 1051 transitions. [2018-03-29 23:51:30,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-03-29 23:51:30,818 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 580 [2018-03-29 23:51:30,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:30,820 INFO L225 Difference]: With dead ends: 1016 [2018-03-29 23:51:30,821 INFO L226 Difference]: Without dead ends: 773 [2018-03-29 23:51:30,823 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1209 GetRequests, 1087 SyntacticMatches, 19 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2801 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1688, Invalid=9232, Unknown=0, NotChecked=0, Total=10920 [2018-03-29 23:51:30,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2018-03-29 23:51:30,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 762. [2018-03-29 23:51:30,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-03-29 23:51:30,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 779 transitions. [2018-03-29 23:51:30,840 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 779 transitions. Word has length 580 [2018-03-29 23:51:30,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:30,840 INFO L459 AbstractCegarLoop]: Abstraction has 762 states and 779 transitions. [2018-03-29 23:51:30,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-03-29 23:51:30,840 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 779 transitions. [2018-03-29 23:51:30,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2018-03-29 23:51:30,844 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:30,845 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] [2018-03-29 23:51:30,845 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]=== [2018-03-29 23:51:30,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1677670013, 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 [2018-03-29 23:51:30,851 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:30,958 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:31,451 INFO L134 CoverageAnalysis]: Checked inductivity of 12939 backedges. 7600 proven. 203 refuted. 0 times theorem prover too weak. 5136 trivial. 0 not checked. [2018-03-29 23:51:31,451 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:32,090 INFO L134 CoverageAnalysis]: Checked inductivity of 12939 backedges. 7600 proven. 203 refuted. 0 times theorem prover too weak. 5136 trivial. 0 not checked. [2018-03-29 23:51:32,111 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:32,112 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 52 [2018-03-29 23:51:32,112 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-03-29 23:51:32,112 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-03-29 23:51:32,113 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=374, Invalid=2278, Unknown=0, NotChecked=0, Total=2652 [2018-03-29 23:51:32,113 INFO L87 Difference]: Start difference. First operand 762 states and 779 transitions. Second operand 52 states. [2018-03-29 23:51:32,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:32,886 INFO L93 Difference]: Finished difference Result 1021 states and 1058 transitions. [2018-03-29 23:51:32,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-03-29 23:51:32,886 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 664 [2018-03-29 23:51:32,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:32,889 INFO L225 Difference]: With dead ends: 1021 [2018-03-29 23:51:32,889 INFO L226 Difference]: Without dead ends: 772 [2018-03-29 23:51:32,892 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1367 GetRequests, 1259 SyntacticMatches, 19 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3001 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1322, Invalid=6868, Unknown=0, NotChecked=0, Total=8190 [2018-03-29 23:51:32,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2018-03-29 23:51:32,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 762. [2018-03-29 23:51:32,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-03-29 23:51:32,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 777 transitions. [2018-03-29 23:51:32,916 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 777 transitions. Word has length 664 [2018-03-29 23:51:32,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:32,917 INFO L459 AbstractCegarLoop]: Abstraction has 762 states and 777 transitions. [2018-03-29 23:51:32,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-03-29 23:51:32,917 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 777 transitions. [2018-03-29 23:51:32,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2018-03-29 23:51:32,923 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:32,923 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] [2018-03-29 23:51:32,923 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]=== [2018-03-29 23:51:32,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1355130122, 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 [2018-03-29 23:51:32,935 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:33,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:33,065 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:33,661 INFO L134 CoverageAnalysis]: Checked inductivity of 13410 backedges. 6150 proven. 441 refuted. 0 times theorem prover too weak. 6819 trivial. 0 not checked. [2018-03-29 23:51:33,661 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:34,317 INFO L134 CoverageAnalysis]: Checked inductivity of 13410 backedges. 6150 proven. 441 refuted. 0 times theorem prover too weak. 6819 trivial. 0 not checked. [2018-03-29 23:51:34,338 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:34,339 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 61 [2018-03-29 23:51:34,339 INFO L442 AbstractCegarLoop]: Interpolant automaton has 61 states [2018-03-29 23:51:34,339 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2018-03-29 23:51:34,340 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=481, Invalid=3179, Unknown=0, NotChecked=0, Total=3660 [2018-03-29 23:51:34,340 INFO L87 Difference]: Start difference. First operand 762 states and 777 transitions. Second operand 61 states. [2018-03-29 23:51:35,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:35,785 INFO L93 Difference]: Finished difference Result 1096 states and 1127 transitions. [2018-03-29 23:51:35,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2018-03-29 23:51:35,785 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 673 [2018-03-29 23:51:35,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:35,788 INFO L225 Difference]: With dead ends: 1096 [2018-03-29 23:51:35,788 INFO L226 Difference]: Without dead ends: 864 [2018-03-29 23:51:35,790 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1401 GetRequests, 1265 SyntacticMatches, 21 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3534 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2067, Invalid=11505, Unknown=0, NotChecked=0, Total=13572 [2018-03-29 23:51:35,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2018-03-29 23:51:35,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 853. [2018-03-29 23:51:35,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 853 states. [2018-03-29 23:51:35,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 868 transitions. [2018-03-29 23:51:35,808 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 868 transitions. Word has length 673 [2018-03-29 23:51:35,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:35,809 INFO L459 AbstractCegarLoop]: Abstraction has 853 states and 868 transitions. [2018-03-29 23:51:35,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 61 states. [2018-03-29 23:51:35,809 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 868 transitions. [2018-03-29 23:51:35,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 767 [2018-03-29 23:51:35,813 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:35,814 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] [2018-03-29 23:51:35,814 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]=== [2018-03-29 23:51:35,814 INFO L82 PathProgramCache]: Analyzing trace with hash 430329175, 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 [2018-03-29 23:51:35,822 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:35,960 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:36,560 INFO L134 CoverageAnalysis]: Checked inductivity of 17821 backedges. 9867 proven. 268 refuted. 0 times theorem prover too weak. 7686 trivial. 0 not checked. [2018-03-29 23:51:36,561 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:37,318 INFO L134 CoverageAnalysis]: Checked inductivity of 17821 backedges. 9867 proven. 268 refuted. 0 times theorem prover too weak. 7686 trivial. 0 not checked. [2018-03-29 23:51:37,340 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:37,340 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 58 [2018-03-29 23:51:37,341 INFO L442 AbstractCegarLoop]: Interpolant automaton has 58 states [2018-03-29 23:51:37,341 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2018-03-29 23:51:37,341 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=456, Invalid=2850, Unknown=0, NotChecked=0, Total=3306 [2018-03-29 23:51:37,341 INFO L87 Difference]: Start difference. First operand 853 states and 868 transitions. Second operand 58 states. [2018-03-29 23:51:38,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:38,355 INFO L93 Difference]: Finished difference Result 1101 states and 1133 transitions. [2018-03-29 23:51:38,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-03-29 23:51:38,355 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 766 [2018-03-29 23:51:38,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:38,358 INFO L225 Difference]: With dead ends: 1101 [2018-03-29 23:51:38,358 INFO L226 Difference]: Without dead ends: 863 [2018-03-29 23:51:38,360 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1576 GetRequests, 1455 SyntacticMatches, 21 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3839 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1640, Invalid=8662, Unknown=0, NotChecked=0, Total=10302 [2018-03-29 23:51:38,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2018-03-29 23:51:38,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 853. [2018-03-29 23:51:38,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 853 states. [2018-03-29 23:51:38,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 866 transitions. [2018-03-29 23:51:38,377 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 866 transitions. Word has length 766 [2018-03-29 23:51:38,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:38,377 INFO L459 AbstractCegarLoop]: Abstraction has 853 states and 866 transitions. [2018-03-29 23:51:38,377 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states. [2018-03-29 23:51:38,377 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 866 transitions. [2018-03-29 23:51:38,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 776 [2018-03-29 23:51:38,381 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:38,381 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] [2018-03-29 23:51:38,382 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]=== [2018-03-29 23:51:38,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1564582768, 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 [2018-03-29 23:51:38,387 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:38,509 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:39,224 INFO L134 CoverageAnalysis]: Checked inductivity of 18375 backedges. 7475 proven. 545 refuted. 0 times theorem prover too weak. 10355 trivial. 0 not checked. [2018-03-29 23:51:39,224 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:40,035 INFO L134 CoverageAnalysis]: Checked inductivity of 18375 backedges. 7475 proven. 545 refuted. 0 times theorem prover too weak. 10355 trivial. 0 not checked. [2018-03-29 23:51:40,056 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:40,056 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 67 [2018-03-29 23:51:40,057 INFO L442 AbstractCegarLoop]: Interpolant automaton has 67 states [2018-03-29 23:51:40,057 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2018-03-29 23:51:40,057 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=573, Invalid=3849, Unknown=0, NotChecked=0, Total=4422 [2018-03-29 23:51:40,057 INFO L87 Difference]: Start difference. First operand 853 states and 866 transitions. Second operand 67 states. [2018-03-29 23:51:41,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:41,744 INFO L93 Difference]: Finished difference Result 1185 states and 1212 transitions. [2018-03-29 23:51:41,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2018-03-29 23:51:41,745 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 775 [2018-03-29 23:51:41,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:41,747 INFO L225 Difference]: With dead ends: 1185 [2018-03-29 23:51:41,747 INFO L226 Difference]: Without dead ends: 964 [2018-03-29 23:51:41,749 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1611 GetRequests, 1461 SyntacticMatches, 23 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4352 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2484, Invalid=14028, Unknown=0, NotChecked=0, Total=16512 [2018-03-29 23:51:41,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2018-03-29 23:51:41,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 953. [2018-03-29 23:51:41,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 953 states. [2018-03-29 23:51:41,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 966 transitions. [2018-03-29 23:51:41,766 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 966 transitions. Word has length 775 [2018-03-29 23:51:41,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:41,766 INFO L459 AbstractCegarLoop]: Abstraction has 953 states and 966 transitions. [2018-03-29 23:51:41,767 INFO L460 AbstractCegarLoop]: Interpolant automaton has 67 states. [2018-03-29 23:51:41,767 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 966 transitions. [2018-03-29 23:51:41,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 878 [2018-03-29 23:51:41,771 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:41,772 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] [2018-03-29 23:51:41,772 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]=== [2018-03-29 23:51:41,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1521448278, 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 [2018-03-29 23:51:41,777 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:41,916 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:42,678 INFO L134 CoverageAnalysis]: Checked inductivity of 24126 backedges. 12514 proven. 342 refuted. 0 times theorem prover too weak. 11270 trivial. 0 not checked. [2018-03-29 23:51:42,678 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:43,598 INFO L134 CoverageAnalysis]: Checked inductivity of 24126 backedges. 12514 proven. 342 refuted. 0 times theorem prover too weak. 11270 trivial. 0 not checked. [2018-03-29 23:51:43,620 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:43,620 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 64 [2018-03-29 23:51:43,621 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-03-29 23:51:43,621 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-03-29 23:51:43,621 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=546, Invalid=3486, Unknown=0, NotChecked=0, Total=4032 [2018-03-29 23:51:43,621 INFO L87 Difference]: Start difference. First operand 953 states and 966 transitions. Second operand 64 states. [2018-03-29 23:51:44,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:44,756 INFO L93 Difference]: Finished difference Result 1190 states and 1217 transitions. [2018-03-29 23:51:44,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2018-03-29 23:51:44,756 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 877 [2018-03-29 23:51:44,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:44,758 INFO L225 Difference]: With dead ends: 1190 [2018-03-29 23:51:44,758 INFO L226 Difference]: Without dead ends: 963 [2018-03-29 23:51:44,759 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1803 GetRequests, 1669 SyntacticMatches, 23 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4780 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1992, Invalid=10664, Unknown=0, NotChecked=0, Total=12656 [2018-03-29 23:51:44,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2018-03-29 23:51:44,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 953. [2018-03-29 23:51:44,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 953 states. [2018-03-29 23:51:44,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 964 transitions. [2018-03-29 23:51:44,776 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 964 transitions. Word has length 877 [2018-03-29 23:51:44,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:44,776 INFO L459 AbstractCegarLoop]: Abstraction has 953 states and 964 transitions. [2018-03-29 23:51:44,776 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-03-29 23:51:44,776 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 964 transitions. [2018-03-29 23:51:44,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 887 [2018-03-29 23:51:44,781 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:44,781 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] [2018-03-29 23:51:44,781 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]=== [2018-03-29 23:51:44,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1145304495, 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 [2018-03-29 23:51:44,787 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:44,929 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:45,795 INFO L134 CoverageAnalysis]: Checked inductivity of 24772 backedges. 8929 proven. 660 refuted. 0 times theorem prover too weak. 15183 trivial. 0 not checked. [2018-03-29 23:51:45,796 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:46,771 INFO L134 CoverageAnalysis]: Checked inductivity of 24772 backedges. 8929 proven. 660 refuted. 0 times theorem prover too weak. 15183 trivial. 0 not checked. [2018-03-29 23:51:46,792 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:46,792 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 73 [2018-03-29 23:51:46,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 73 states [2018-03-29 23:51:46,793 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2018-03-29 23:51:46,793 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=673, Invalid=4583, Unknown=0, NotChecked=0, Total=5256 [2018-03-29 23:51:46,794 INFO L87 Difference]: Start difference. First operand 953 states and 964 transitions. Second operand 73 states. [2018-03-29 23:51:48,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:48,740 INFO L93 Difference]: Finished difference Result 1283 states and 1306 transitions. [2018-03-29 23:51:48,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2018-03-29 23:51:48,740 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 886 [2018-03-29 23:51:48,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:48,743 INFO L225 Difference]: With dead ends: 1283 [2018-03-29 23:51:48,743 INFO L226 Difference]: Without dead ends: 1073 [2018-03-29 23:51:48,744 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1839 GetRequests, 1675 SyntacticMatches, 25 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5255 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=2939, Invalid=16801, Unknown=0, NotChecked=0, Total=19740 [2018-03-29 23:51:48,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2018-03-29 23:51:48,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1062. [2018-03-29 23:51:48,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1062 states. [2018-03-29 23:51:48,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1073 transitions. [2018-03-29 23:51:48,762 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1073 transitions. Word has length 886 [2018-03-29 23:51:48,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:48,763 INFO L459 AbstractCegarLoop]: Abstraction has 1062 states and 1073 transitions. [2018-03-29 23:51:48,763 INFO L460 AbstractCegarLoop]: Interpolant automaton has 73 states. [2018-03-29 23:51:48,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1073 transitions. [2018-03-29 23:51:48,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 998 [2018-03-29 23:51:48,768 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:48,768 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] [2018-03-29 23:51:48,768 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]=== [2018-03-29 23:51:48,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1017007792, 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 [2018-03-29 23:51:48,774 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:48,931 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:49,855 INFO L134 CoverageAnalysis]: Checked inductivity of 32130 backedges. 15568 proven. 425 refuted. 0 times theorem prover too weak. 16137 trivial. 0 not checked. [2018-03-29 23:51:49,855 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:50,981 INFO L134 CoverageAnalysis]: Checked inductivity of 32130 backedges. 15568 proven. 425 refuted. 0 times theorem prover too weak. 16137 trivial. 0 not checked. [2018-03-29 23:51:51,002 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:51,003 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 70 [2018-03-29 23:51:51,003 INFO L442 AbstractCegarLoop]: Interpolant automaton has 70 states [2018-03-29 23:51:51,004 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2018-03-29 23:51:51,004 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=644, Invalid=4186, Unknown=0, NotChecked=0, Total=4830 [2018-03-29 23:51:51,004 INFO L87 Difference]: Start difference. First operand 1062 states and 1073 transitions. Second operand 70 states. [2018-03-29 23:51:52,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:52,120 INFO L93 Difference]: Finished difference Result 1288 states and 1310 transitions. [2018-03-29 23:51:52,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2018-03-29 23:51:52,151 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 997 [2018-03-29 23:51:52,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:52,154 INFO L225 Difference]: With dead ends: 1288 [2018-03-29 23:51:52,154 INFO L226 Difference]: Without dead ends: 1072 [2018-03-29 23:51:52,156 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2048 GetRequests, 1901 SyntacticMatches, 25 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5824 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2378, Invalid=12874, Unknown=0, NotChecked=0, Total=15252 [2018-03-29 23:51:52,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2018-03-29 23:51:52,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1062. [2018-03-29 23:51:52,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1062 states. [2018-03-29 23:51:52,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1071 transitions. [2018-03-29 23:51:52,174 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1071 transitions. Word has length 997 [2018-03-29 23:51:52,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:52,175 INFO L459 AbstractCegarLoop]: Abstraction has 1062 states and 1071 transitions. [2018-03-29 23:51:52,175 INFO L460 AbstractCegarLoop]: Interpolant automaton has 70 states. [2018-03-29 23:51:52,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1071 transitions. [2018-03-29 23:51:52,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1007 [2018-03-29 23:51:52,181 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:52,181 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] [2018-03-29 23:51:52,181 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]=== [2018-03-29 23:51:52,181 INFO L82 PathProgramCache]: Analyzing trace with hash 2014619543, 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 [2018-03-29 23:51:52,187 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:52,348 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:53,376 INFO L134 CoverageAnalysis]: Checked inductivity of 32877 backedges. 10512 proven. 786 refuted. 0 times theorem prover too weak. 21579 trivial. 0 not checked. [2018-03-29 23:51:53,377 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:54,548 INFO L134 CoverageAnalysis]: Checked inductivity of 32877 backedges. 10512 proven. 786 refuted. 0 times theorem prover too weak. 21579 trivial. 0 not checked. [2018-03-29 23:51:54,570 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:54,570 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 79 [2018-03-29 23:51:54,571 INFO L442 AbstractCegarLoop]: Interpolant automaton has 79 states [2018-03-29 23:51:54,571 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2018-03-29 23:51:54,571 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=781, Invalid=5381, Unknown=0, NotChecked=0, Total=6162 [2018-03-29 23:51:54,571 INFO L87 Difference]: Start difference. First operand 1062 states and 1071 transitions. Second operand 79 states. [2018-03-29 23:51:56,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:56,721 INFO L93 Difference]: Finished difference Result 1390 states and 1409 transitions. [2018-03-29 23:51:56,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2018-03-29 23:51:56,721 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 1006 [2018-03-29 23:51:56,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:56,724 INFO L225 Difference]: With dead ends: 1390 [2018-03-29 23:51:56,724 INFO L226 Difference]: Without dead ends: 1191 [2018-03-29 23:51:56,727 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2085 GetRequests, 1907 SyntacticMatches, 27 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6243 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=3432, Invalid=19824, Unknown=0, NotChecked=0, Total=23256 [2018-03-29 23:51:56,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2018-03-29 23:51:56,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 1180. [2018-03-29 23:51:56,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1180 states. [2018-03-29 23:51:56,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1189 transitions. [2018-03-29 23:51:56,750 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1189 transitions. Word has length 1006 [2018-03-29 23:51:56,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:56,751 INFO L459 AbstractCegarLoop]: Abstraction has 1180 states and 1189 transitions. [2018-03-29 23:51:56,751 INFO L460 AbstractCegarLoop]: Interpolant automaton has 79 states. [2018-03-29 23:51:56,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1189 transitions. [2018-03-29 23:51:56,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1127 [2018-03-29 23:51:56,757 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:56,758 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] [2018-03-29 23:51:56,758 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]=== [2018-03-29 23:51:56,758 INFO L82 PathProgramCache]: Analyzing trace with hash 347048669, 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 [2018-03-29 23:51:56,766 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:56,944 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:58,050 INFO L134 CoverageAnalysis]: Checked inductivity of 42136 backedges. 19056 proven. 517 refuted. 0 times theorem prover too weak. 22563 trivial. 0 not checked. [2018-03-29 23:51:58,050 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:59,606 INFO L134 CoverageAnalysis]: Checked inductivity of 42136 backedges. 19056 proven. 517 refuted. 0 times theorem prover too weak. 22563 trivial. 0 not checked. [2018-03-29 23:51:59,628 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:59,628 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 76 [2018-03-29 23:51:59,629 INFO L442 AbstractCegarLoop]: Interpolant automaton has 76 states [2018-03-29 23:51:59,629 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2018-03-29 23:51:59,629 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=750, Invalid=4950, Unknown=0, NotChecked=0, Total=5700 [2018-03-29 23:51:59,630 INFO L87 Difference]: Start difference. First operand 1180 states and 1189 transitions. Second operand 76 states. [2018-03-29 23:52:00,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:52:00,977 INFO L93 Difference]: Finished difference Result 1395 states and 1412 transitions. [2018-03-29 23:52:00,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2018-03-29 23:52:00,977 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 1126 [2018-03-29 23:52:00,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:52:00,980 INFO L225 Difference]: With dead ends: 1395 [2018-03-29 23:52:00,980 INFO L226 Difference]: Without dead ends: 1190 [2018-03-29 23:52:00,982 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2311 GetRequests, 2151 SyntacticMatches, 27 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6971 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2798, Invalid=15292, Unknown=0, NotChecked=0, Total=18090 [2018-03-29 23:52:00,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2018-03-29 23:52:01,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 1180. [2018-03-29 23:52:01,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1180 states. [2018-03-29 23:52:01,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1187 transitions. [2018-03-29 23:52:01,003 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1187 transitions. Word has length 1126 [2018-03-29 23:52:01,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:52:01,004 INFO L459 AbstractCegarLoop]: Abstraction has 1180 states and 1187 transitions. [2018-03-29 23:52:01,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 76 states. [2018-03-29 23:52:01,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1187 transitions. [2018-03-29 23:52:01,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1136 [2018-03-29 23:52:01,011 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:52:01,011 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] [2018-03-29 23:52:01,011 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]=== [2018-03-29 23:52:01,012 INFO L82 PathProgramCache]: Analyzing trace with hash 448674986, 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 [2018-03-29 23:52:01,019 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:52:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:52:01,212 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:52:02,474 INFO L134 CoverageAnalysis]: Checked inductivity of 42993 backedges. 12224 proven. 923 refuted. 0 times theorem prover too weak. 29846 trivial. 0 not checked. [2018-03-29 23:52:02,474 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:52:03,844 INFO L134 CoverageAnalysis]: Checked inductivity of 42993 backedges. 12224 proven. 923 refuted. 0 times theorem prover too weak. 29846 trivial. 0 not checked. [2018-03-29 23:52:03,866 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:52:03,867 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 85 [2018-03-29 23:52:03,868 INFO L442 AbstractCegarLoop]: Interpolant automaton has 85 states [2018-03-29 23:52:03,868 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2018-03-29 23:52:03,868 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=897, Invalid=6243, Unknown=0, NotChecked=0, Total=7140 [2018-03-29 23:52:03,868 INFO L87 Difference]: Start difference. First operand 1180 states and 1187 transitions. Second operand 85 states. [2018-03-29 23:52:06,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:52:06,697 INFO L93 Difference]: Finished difference Result 1506 states and 1521 transitions. [2018-03-29 23:52:06,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2018-03-29 23:52:06,697 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 1135 [2018-03-29 23:52:06,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:52:06,700 INFO L225 Difference]: With dead ends: 1506 [2018-03-29 23:52:06,701 INFO L226 Difference]: Without dead ends: 1318 [2018-03-29 23:52:06,702 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2349 GetRequests, 2157 SyntacticMatches, 29 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7316 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=3963, Invalid=23097, Unknown=0, NotChecked=0, Total=27060 [2018-03-29 23:52:06,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2018-03-29 23:52:06,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1307. [2018-03-29 23:52:06,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1307 states. [2018-03-29 23:52:06,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1314 transitions. [2018-03-29 23:52:06,724 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1314 transitions. Word has length 1135 [2018-03-29 23:52:06,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:52:06,725 INFO L459 AbstractCegarLoop]: Abstraction has 1307 states and 1314 transitions. [2018-03-29 23:52:06,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 85 states. [2018-03-29 23:52:06,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1314 transitions. [2018-03-29 23:52:06,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1257 [2018-03-29 23:52:06,733 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:52:06,733 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] [2018-03-29 23:52:06,733 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]=== [2018-03-29 23:52:06,734 INFO L82 PathProgramCache]: Analyzing trace with hash -602255640, 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 [2018-03-29 23:52:06,740 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:52:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:52:06,942 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:52:08,232 INFO L134 CoverageAnalysis]: Checked inductivity of 51654 backedges. 20549 proven. 618 refuted. 0 times theorem prover too weak. 30487 trivial. 0 not checked. [2018-03-29 23:52:08,232 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:52:09,769 INFO L134 CoverageAnalysis]: Checked inductivity of 51654 backedges. 10173 proven. 1970 refuted. 0 times theorem prover too weak. 39511 trivial. 0 not checked. [2018-03-29 23:52:09,791 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:52:09,791 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56] total 82 [2018-03-29 23:52:09,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 82 states [2018-03-29 23:52:09,792 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2018-03-29 23:52:09,793 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=864, Invalid=5778, Unknown=0, NotChecked=0, Total=6642 [2018-03-29 23:52:09,793 INFO L87 Difference]: Start difference. First operand 1307 states and 1314 transitions. Second operand 82 states. [2018-03-29 23:52:11,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:52:11,204 INFO L93 Difference]: Finished difference Result 1511 states and 1523 transitions. [2018-03-29 23:52:11,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2018-03-29 23:52:11,204 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 1256 [2018-03-29 23:52:11,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:52:11,208 INFO L225 Difference]: With dead ends: 1511 [2018-03-29 23:52:11,208 INFO L226 Difference]: Without dead ends: 1317 [2018-03-29 23:52:11,209 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2576 GetRequests, 2403 SyntacticMatches, 29 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8221 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=3252, Invalid=17918, Unknown=0, NotChecked=0, Total=21170 [2018-03-29 23:52:11,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2018-03-29 23:52:11,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1307. [2018-03-29 23:52:11,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1307 states. [2018-03-29 23:52:11,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1312 transitions. [2018-03-29 23:52:11,232 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1312 transitions. Word has length 1256 [2018-03-29 23:52:11,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:52:11,232 INFO L459 AbstractCegarLoop]: Abstraction has 1307 states and 1312 transitions. [2018-03-29 23:52:11,232 INFO L460 AbstractCegarLoop]: Interpolant automaton has 82 states. [2018-03-29 23:52:11,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1312 transitions. [2018-03-29 23:52:11,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1274 [2018-03-29 23:52:11,240 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:52:11,241 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] [2018-03-29 23:52:11,241 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]=== [2018-03-29 23:52:11,241 INFO L82 PathProgramCache]: Analyzing trace with hash -348476720, now seen corresponding path program 26 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 23:52:11,247 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:52:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:52:11,447 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:52:12,912 INFO L134 CoverageAnalysis]: Checked inductivity of 55450 backedges. 14065 proven. 1071 refuted. 0 times theorem prover too weak. 40314 trivial. 0 not checked. [2018-03-29 23:52:12,912 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:52:14,549 INFO L134 CoverageAnalysis]: Checked inductivity of 55450 backedges. 14065 proven. 1071 refuted. 0 times theorem prover too weak. 40314 trivial. 0 not checked. [2018-03-29 23:52:14,571 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:52:14,571 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62] total 91 [2018-03-29 23:52:14,572 INFO L442 AbstractCegarLoop]: Interpolant automaton has 91 states [2018-03-29 23:52:14,572 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2018-03-29 23:52:14,573 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1021, Invalid=7169, Unknown=0, NotChecked=0, Total=8190 [2018-03-29 23:52:14,573 INFO L87 Difference]: Start difference. First operand 1307 states and 1312 transitions. Second operand 91 states. [2018-03-29 23:52:17,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:52:17,915 INFO L93 Difference]: Finished difference Result 1642 states and 1655 transitions. [2018-03-29 23:52:17,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2018-03-29 23:52:17,915 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 1273 [2018-03-29 23:52:17,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:52:17,919 INFO L225 Difference]: With dead ends: 1642 [2018-03-29 23:52:17,919 INFO L226 Difference]: Without dead ends: 1462 [2018-03-29 23:52:17,921 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2631 GetRequests, 2425 SyntacticMatches, 31 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8474 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=4532, Invalid=26620, Unknown=0, NotChecked=0, Total=31152 [2018-03-29 23:52:17,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2018-03-29 23:52:17,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1446. [2018-03-29 23:52:17,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1446 states. [2018-03-29 23:52:17,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 1452 transitions. [2018-03-29 23:52:17,946 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 1452 transitions. Word has length 1273 [2018-03-29 23:52:17,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:52:17,947 INFO L459 AbstractCegarLoop]: Abstraction has 1446 states and 1452 transitions. [2018-03-29 23:52:17,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 91 states. [2018-03-29 23:52:17,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 1452 transitions. [2018-03-29 23:52:17,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1275 [2018-03-29 23:52:17,955 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:52:17,955 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] [2018-03-29 23:52:17,955 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]=== [2018-03-29 23:52:17,956 INFO L82 PathProgramCache]: Analyzing trace with hash 863240764, 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 [2018-03-29 23:52:17,961 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:52:18,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:52:18,165 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:52:19,584 INFO L134 CoverageAnalysis]: Checked inductivity of 53559 backedges. 12490 proven. 728 refuted. 0 times theorem prover too weak. 40341 trivial. 0 not checked. [2018-03-29 23:52:19,585 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:52:21,400 INFO L134 CoverageAnalysis]: Checked inductivity of 53559 backedges. 12490 proven. 728 refuted. 0 times theorem prover too weak. 40341 trivial. 0 not checked. [2018-03-29 23:52:21,421 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:52:21,422 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 60] total 88 [2018-03-29 23:52:21,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 88 states [2018-03-29 23:52:21,423 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2018-03-29 23:52:21,423 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=986, Invalid=6670, Unknown=0, NotChecked=0, Total=7656 [2018-03-29 23:52:21,424 INFO L87 Difference]: Start difference. First operand 1446 states and 1452 transitions. Second operand 88 states. [2018-03-29 23:52:22,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:52:22,895 INFO L93 Difference]: Finished difference Result 1642 states and 1652 transitions. [2018-03-29 23:52:22,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2018-03-29 23:52:22,895 INFO L78 Accepts]: Start accepts. Automaton has 88 states. Word has length 1274 [2018-03-29 23:52:22,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:52:22,899 INFO L225 Difference]: With dead ends: 1642 [2018-03-29 23:52:22,899 INFO L226 Difference]: Without dead ends: 1456 [2018-03-29 23:52:22,900 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2617 GetRequests, 2431 SyntacticMatches, 31 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9574 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=3740, Invalid=20752, Unknown=0, NotChecked=0, Total=24492 [2018-03-29 23:52:22,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2018-03-29 23:52:22,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1446. [2018-03-29 23:52:22,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1446 states. [2018-03-29 23:52:22,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 1450 transitions. [2018-03-29 23:52:22,926 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 1450 transitions. Word has length 1274 [2018-03-29 23:52:22,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:52:22,927 INFO L459 AbstractCegarLoop]: Abstraction has 1446 states and 1450 transitions. [2018-03-29 23:52:22,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 88 states. [2018-03-29 23:52:22,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 1450 transitions. [2018-03-29 23:52:22,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1284 [2018-03-29 23:52:22,935 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:52:22,935 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] [2018-03-29 23:52:22,936 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]=== [2018-03-29 23:52:22,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1558453471, 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 [2018-03-29 23:52:22,945 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:52:23,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:52:23,149 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:52:23,867 INFO L134 CoverageAnalysis]: Checked inductivity of 54525 backedges. 0 proven. 1185 refuted. 0 times theorem prover too weak. 53340 trivial. 0 not checked. [2018-03-29 23:52:23,867 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:52:24,945 INFO L134 CoverageAnalysis]: Checked inductivity of 54525 backedges. 0 proven. 1185 refuted. 0 times theorem prover too weak. 53340 trivial. 0 not checked. [2018-03-29 23:52:24,968 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:52:24,968 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 64 [2018-03-29 23:52:24,969 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-03-29 23:52:24,970 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-03-29 23:52:24,970 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1056, Invalid=2976, Unknown=0, NotChecked=0, Total=4032 [2018-03-29 23:52:24,970 INFO L87 Difference]: Start difference. First operand 1446 states and 1450 transitions. Second operand 64 states. [2018-03-29 23:52:26,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:52:26,331 INFO L93 Difference]: Finished difference Result 1649 states and 1684 transitions. [2018-03-29 23:52:26,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2018-03-29 23:52:26,331 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 1283 [2018-03-29 23:52:26,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:52:26,335 INFO L225 Difference]: With dead ends: 1649 [2018-03-29 23:52:26,335 INFO L226 Difference]: Without dead ends: 1629 [2018-03-29 23:52:26,336 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2625 GetRequests, 2503 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3257 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=4867, Invalid=10385, Unknown=0, NotChecked=0, Total=15252 [2018-03-29 23:52:26,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2018-03-29 23:52:26,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 1619. [2018-03-29 23:52:26,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1619 states. [2018-03-29 23:52:26,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 1638 transitions. [2018-03-29 23:52:26,366 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 1638 transitions. Word has length 1283 [2018-03-29 23:52:26,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:52:26,367 INFO L459 AbstractCegarLoop]: Abstraction has 1619 states and 1638 transitions. [2018-03-29 23:52:26,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-03-29 23:52:26,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 1638 transitions. [2018-03-29 23:52:26,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1421 [2018-03-29 23:52:26,377 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:52:26,378 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] [2018-03-29 23:52:26,378 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]=== [2018-03-29 23:52:26,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1011311153, 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 [2018-03-29 23:52:26,383 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:52:26,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:52:26,615 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:52:28,346 INFO L134 CoverageAnalysis]: Checked inductivity of 70605 backedges. 16035 proven. 1230 refuted. 0 times theorem prover too weak. 53340 trivial. 0 not checked. [2018-03-29 23:52:28,346 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:52:30,203 INFO L134 CoverageAnalysis]: Checked inductivity of 70605 backedges. 16035 proven. 1230 refuted. 0 times theorem prover too weak. 53340 trivial. 0 not checked. [2018-03-29 23:52:30,225 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:52:30,225 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66] total 97 [2018-03-29 23:52:30,226 INFO L442 AbstractCegarLoop]: Interpolant automaton has 97 states [2018-03-29 23:52:30,226 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2018-03-29 23:52:30,227 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1153, Invalid=8159, Unknown=0, NotChecked=0, Total=9312 [2018-03-29 23:52:30,227 INFO L87 Difference]: Start difference. First operand 1619 states and 1638 transitions. Second operand 97 states. [2018-03-29 23:52:33,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:52:33,528 INFO L93 Difference]: Finished difference Result 2117 states and 2156 transitions. [2018-03-29 23:52:33,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2018-03-29 23:52:33,528 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 1420 [2018-03-29 23:52:33,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:52:33,533 INFO L225 Difference]: With dead ends: 2117 [2018-03-29 23:52:33,533 INFO L226 Difference]: Without dead ends: 1775 [2018-03-29 23:52:33,537 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2931 GetRequests, 2711 SyntacticMatches, 33 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9717 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=5139, Invalid=30393, Unknown=0, NotChecked=0, Total=35532 [2018-03-29 23:52:33,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2018-03-29 23:52:33,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1764. [2018-03-29 23:52:33,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1764 states. [2018-03-29 23:52:33,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 1783 transitions. [2018-03-29 23:52:33,574 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 1783 transitions. Word has length 1420 [2018-03-29 23:52:33,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:52:33,575 INFO L459 AbstractCegarLoop]: Abstraction has 1764 states and 1783 transitions. [2018-03-29 23:52:33,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 97 states. [2018-03-29 23:52:33,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 1783 transitions. [2018-03-29 23:52:33,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1568 [2018-03-29 23:52:33,587 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:52:33,588 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] [2018-03-29 23:52:33,588 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]=== [2018-03-29 23:52:33,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1017342672, 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 [2018-03-29 23:52:33,596 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:52:33,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:52:33,858 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:52:35,685 INFO L134 CoverageAnalysis]: Checked inductivity of 87601 backedges. 32394 proven. 847 refuted. 0 times theorem prover too weak. 54360 trivial. 0 not checked. [2018-03-29 23:52:35,685 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:52:37,777 INFO L134 CoverageAnalysis]: Checked inductivity of 87601 backedges. 32394 proven. 847 refuted. 0 times theorem prover too weak. 54360 trivial. 0 not checked. [2018-03-29 23:52:37,800 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:52:37,800 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64] total 94 [2018-03-29 23:52:37,801 INFO L442 AbstractCegarLoop]: Interpolant automaton has 94 states [2018-03-29 23:52:37,802 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2018-03-29 23:52:37,802 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1116, Invalid=7626, Unknown=0, NotChecked=0, Total=8742 [2018-03-29 23:52:37,802 INFO L87 Difference]: Start difference. First operand 1764 states and 1783 transitions. Second operand 94 states. [2018-03-29 23:52:39,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:52:39,738 INFO L93 Difference]: Finished difference Result 2126 states and 2176 transitions. [2018-03-29 23:52:39,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2018-03-29 23:52:39,739 INFO L78 Accepts]: Start accepts. Automaton has 94 states. Word has length 1567 [2018-03-29 23:52:39,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:52:39,743 INFO L225 Difference]: With dead ends: 2126 [2018-03-29 23:52:39,744 INFO L226 Difference]: Without dead ends: 1778 [2018-03-29 23:52:39,748 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3208 GetRequests, 3009 SyntacticMatches, 33 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11030 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=4262, Invalid=23794, Unknown=0, NotChecked=0, Total=28056 [2018-03-29 23:52:39,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2018-03-29 23:52:39,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 1764. [2018-03-29 23:52:39,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1764 states. [2018-03-29 23:52:39,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 1781 transitions. [2018-03-29 23:52:39,782 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 1781 transitions. Word has length 1567 [2018-03-29 23:52:39,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:52:39,783 INFO L459 AbstractCegarLoop]: Abstraction has 1764 states and 1781 transitions. [2018-03-29 23:52:39,783 INFO L460 AbstractCegarLoop]: Interpolant automaton has 94 states. [2018-03-29 23:52:39,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 1781 transitions. [2018-03-29 23:52:39,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1577 [2018-03-29 23:52:39,796 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:52:39,797 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] [2018-03-29 23:52:39,797 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]=== [2018-03-29 23:52:39,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1326702665, now seen corresponding path program 29 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 23:52:39,819 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:52:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:52:40,077 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:52:41,123 INFO L134 CoverageAnalysis]: Checked inductivity of 88842 backedges. 17072 proven. 990 refuted. 0 times theorem prover too weak. 70780 trivial. 0 not checked. [2018-03-29 23:52:41,123 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:52:42,963 INFO L134 CoverageAnalysis]: Checked inductivity of 88842 backedges. 17072 proven. 990 refuted. 0 times theorem prover too weak. 70780 trivial. 0 not checked. [2018-03-29 23:52:42,986 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:52:42,998 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 63 [2018-03-29 23:52:42,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-03-29 23:52:42,999 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-03-29 23:52:43,000 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=606, Invalid=3426, Unknown=0, NotChecked=0, Total=4032 [2018-03-29 23:52:43,000 INFO L87 Difference]: Start difference. First operand 1764 states and 1781 transitions. Second operand 64 states. Received shutdown request... [2018-03-29 23:52:44,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-03-29 23:52:44,658 WARN L519 AbstractCegarLoop]: Verification canceled [2018-03-29 23:52:44,661 WARN L197 ceAbstractionStarter]: Timeout [2018-03-29 23:52:44,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 11:52:44 BasicIcfg [2018-03-29 23:52:44,661 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-29 23:52:44,662 INFO L168 Benchmark]: Toolchain (without parser) took 113916.14 ms. Allocated memory was 293.1 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 235.7 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 790.9 MB. Max. memory is 5.3 GB. [2018-03-29 23:52:44,662 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 293.1 MB. Free memory is still 253.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-29 23:52:44,663 INFO L168 Benchmark]: CACSL2BoogieTranslator took 205.44 ms. Allocated memory is still 293.1 MB. Free memory was 233.7 MB in the beginning and 225.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 5.3 GB. [2018-03-29 23:52:44,663 INFO L168 Benchmark]: Boogie Preprocessor took 27.94 ms. Allocated memory is still 293.1 MB. Free memory was 225.7 MB in the beginning and 223.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-03-29 23:52:44,663 INFO L168 Benchmark]: RCFGBuilder took 293.24 ms. Allocated memory was 293.1 MB in the beginning and 441.5 MB in the end (delta: 148.4 MB). Free memory was 223.7 MB in the beginning and 406.2 MB in the end (delta: -182.5 MB). Peak memory consumption was 24.4 MB. Max. memory is 5.3 GB. [2018-03-29 23:52:44,664 INFO L168 Benchmark]: IcfgTransformer took 8705.90 ms. Allocated memory was 441.5 MB in the beginning and 632.3 MB in the end (delta: 190.8 MB). Free memory was 406.2 MB in the beginning and 438.2 MB in the end (delta: -32.0 MB). Peak memory consumption was 158.9 MB. Max. memory is 5.3 GB. [2018-03-29 23:52:44,664 INFO L168 Benchmark]: TraceAbstraction took 104676.50 ms. Allocated memory was 632.3 MB in the beginning and 2.3 GB in the end (delta: 1.6 GB). Free memory was 431.8 MB in the beginning and 1.4 GB in the end (delta: -985.9 MB). Peak memory consumption was 647.8 MB. Max. memory is 5.3 GB. [2018-03-29 23:52:44,666 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 293.1 MB. Free memory is still 253.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 205.44 ms. Allocated memory is still 293.1 MB. Free memory was 233.7 MB in the beginning and 225.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 27.94 ms. Allocated memory is still 293.1 MB. Free memory was 225.7 MB in the beginning and 223.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 293.24 ms. Allocated memory was 293.1 MB in the beginning and 441.5 MB in the end (delta: 148.4 MB). Free memory was 223.7 MB in the beginning and 406.2 MB in the end (delta: -182.5 MB). Peak memory consumption was 24.4 MB. Max. memory is 5.3 GB. * IcfgTransformer took 8705.90 ms. Allocated memory was 441.5 MB in the beginning and 632.3 MB in the end (delta: 190.8 MB). Free memory was 406.2 MB in the beginning and 438.2 MB in the end (delta: -32.0 MB). Peak memory consumption was 158.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 104676.50 ms. Allocated memory was 632.3 MB in the beginning and 2.3 GB in the end (delta: 1.6 GB). Free memory was 431.8 MB in the beginning and 1.4 GB in the end (delta: -985.9 MB). Peak memory consumption was 647.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 62 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 473 LocStat_NO_SUPPORTING_DISEQUALITIES : 114 LocStat_NO_DISJUNCTIONS : -124 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 76 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 58 TransStat_NO_SUPPORTING_DISEQUALITIES : 7 TransStat_NO_DISJUNCTIONS : 77 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 1250.37 RENAME_VARIABLES(MILLISECONDS) : 738.80 UNFREEZE(MILLISECONDS) : 0.00 CONJOIN(MILLISECONDS) : 1265.47 PROJECTAWAY(MILLISECONDS) : 1158.33 ADD_WEAK_EQUALITY(MILLISECONDS) : 7.00 DISJOIN(MILLISECONDS) : 51.70 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 756.53 ADD_EQUALITY(MILLISECONDS) : 8.19 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.00 ADD_DISEQUALITY(MILLISECONDS) : 0.24 #CONJOIN_DISJUNCTIVE : 414 #RENAME_VARIABLES : 902 #UNFREEZE : 0 #CONJOIN : 541 #PROJECTAWAY : 567 #ADD_WEAK_EQUALITY : 7 #DISJOIN : 77 #RENAME_VARIABLES_DISJUNCTIVE : 897 #ADD_EQUALITY : 58 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 4 - StatisticsResult: WeqCcManagerStatistics FREEZE(MILLISECONDS) : 6042.17 ADDNODE(MILLISECONDS) : 0.00 MEET(MILLISECONDS) : 1258.81 FILTERREDUNDANT(MILLISECONDS) : 0.00 REPORTWEQ(MILLISECONDS) : 6.86 JOIN(MILLISECONDS) : 48.35 RENAMEVARS(MILLISECONDS) : 731.06 FLATTENLABELS(MILLISECONDS) : 0.00 COPY(MILLISECONDS) : 0.00 ISSTRONGERTHAN(MILLISECONDS) : 4919.39 ISLABELSTRONGERTHAN(MILLISECONDS) : 966.93 ISWEQGRAPHSTRONGERTHAN(MILLISECONDS) : 71.87 UNFREEZE(MILLISECONDS) : 40.81 REPORTCONTAINS(MILLISECONDS) : 0.35 PROJECTAWAY(MILLISECONDS) : 1076.04 MEETEDGELABELS(MILLISECONDS) : 139.13 REPORTEQUALITY(MILLISECONDS) : 309.58 ADDALLNODES(MILLISECONDS) : 154.67 REPORTDISEQUALITY(MILLISECONDS) : 2.59 WEQGRAPHJOIN(MILLISECONDS) : 21.22 #FREEZE : 5496 #ADDNODE : 0 #MEET : 344 #FILTERREDUNDANT : 0 #REPORTWEQ : 7 #JOIN : 77 #RENAMEVARS : 902 #FLATTENLABELS : 0 #COPY : 0 #ISSTRONGERTHAN : 1593 #ISLABELSTRONGERTHAN : 20635 #ISWEQGRAPHSTRONGERTHAN : 463 #UNFREEZE : 2201 #REPORTCONTAINS : 16 #PROJECTAWAY : 955 #MEETEDGELABELS : 1568 #REPORTEQUALITY : 2665 #ADDALLNODES : 344 #REPORTDISEQUALITY : 728 #WEQGRAPHJOIN : 77 - StatisticsResult: CcManagerStatistics ADDNODE(MILLISECONDS) : 0.00 MEET(MILLISECONDS) : 1954.47 IS_STRONGER_THAN(MILLISECONDS) : 2289.30 REPORT_EQUALITY(MILLISECONDS) : 579.80 FILTERREDUNDANT(MILLISECONDS) : 2104.16 ADD_ALL_ELEMENTS(MILLISECONDS) : 917.64 JOIN(MILLISECONDS) : 20.53 ALIGN_ELEMENTS(MILLISECONDS) : 1646.58 COPY(MILLISECONDS) : 0.00 REPORT_DISEQUALITY(MILLISECONDS) : 159.49 UNFREEZE(MILLISECONDS) : 0.00 OVERALL(MILLISECONDS) : 4492.22 REPORTCONTAINS(MILLISECONDS) : 8.10 REMOVE(MILLISECONDS) : 0.00 PROJECT_TO_ELEMENTS(MILLISECONDS) : 548.37 #ADDNODE : 0 #MEET : 8447 #IS_STRONGER_THAN : 54670 #REPORT_EQUALITY : 62513 #FILTERREDUNDANT : 52084 #ADD_ALL_ELEMENTS : 43827 #JOIN : 77 #ALIGN_ELEMENTS : 17525 #COPY : 0 #REPORT_DISEQUALITY : 23969 #UNFREEZE : 0 #OVERALL : 271879 #REPORTCONTAINS : 492 #REMOVE : 0 #PROJECT_TO_ELEMENTS : 8275 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: HeapSeparatorStatistics #COUNT_NEW_ARRAY_VARS_[#memory_int] : 1 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_0 : 1 COUNT_BLOCKS_for_[#memory_int]_at_dim_0 : 1 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_1 : 1 COUNT_BLOCKS_for_[#memory_int]_at_dim_1 : 1 COUNT_ARRAY_READS for [#memory_int] : 1 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 16]: Timeout (TraceAbstraction) Unable to prove that array index is always in bounds (line 16). Cancelled while BasicCegarLoop was constructing difference of abstraction (1764states) and interpolant automaton (currently 49 states, 64 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 95 known predicates. - TimeoutResultAtElement [Line: 16]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 16). Cancelled while BasicCegarLoop was constructing difference of abstraction (1764states) and interpolant automaton (currently 49 states, 64 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 95 known predicates. - TimeoutResultAtElement [Line: 16]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 16). Cancelled while BasicCegarLoop was constructing difference of abstraction (1764states) and interpolant automaton (currently 49 states, 64 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 95 known predicates. - TimeoutResultAtElement [Line: 30]: Timeout (TraceAbstraction) Unable to prove that array index is always in bounds (line 30). Cancelled while BasicCegarLoop was constructing difference of abstraction (1764states) and interpolant automaton (currently 49 states, 64 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 95 known predicates. - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 21). Cancelled while BasicCegarLoop was constructing difference of abstraction (1764states) and interpolant automaton (currently 49 states, 64 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 95 known predicates. - TimeoutResultAtElement [Line: 27]: Timeout (TraceAbstraction) Unable to prove that array index is always in bounds (line 27). Cancelled while BasicCegarLoop was constructing difference of abstraction (1764states) and interpolant automaton (currently 49 states, 64 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 95 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 64 locations, 6 error locations. TIMEOUT Result, 104.6s OverallTime, 47 OverallIterations, 152 TraceHistogramMax, 44.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3892 SDtfs, 12109 SDslu, 45512 SDs, 0 SdLazy, 41041 SolverSat, 2982 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51222 GetRequests, 47133 SyntacticMatches, 602 SemanticMatches, 3486 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121087 ImplicationChecksByTransitivity, 55.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1764occurred in iteration=45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 46 MinimizatonAttempts, 560 StatesRemovedByMinimization, 45 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.9s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 52.8s InterpolantComputationTime, 24815 NumberOfCodeBlocks, 24815 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 49536 ConstructedInterpolants, 475 QuantifiedInterpolants, 87069149 SizeOfPredicates, 1177 NumberOfNonLiveVariables, 46221 ConjunctsInSsa, 1396 ConjunctsInUnsatCore, 94 InterpolantComputations, 10 PerfectInterpolantSequences, 1519340/1548994 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-0-2018-03-29_23-52-44-680.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-0-2018-03-29_23-52-44-680.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-0-2018-03-29_23-52-44-680.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-1-2018-03-29_23-52-44-680.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-2-2018-03-29_23-52-44-680.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-0-2018-03-29_23-52-44-680.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-0-2018-03-29_23-52-44-680.csv Completed graceful shutdown