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/ArraysOfVariableLength6_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cf7e2d-m [2018-03-29 23:51:05,527 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-29 23:51:05,529 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-29 23:51:05,544 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-29 23:51:05,544 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-29 23:51:05,545 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-29 23:51:05,547 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-29 23:51:05,548 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-29 23:51:05,551 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-29 23:51:05,552 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-29 23:51:05,553 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-29 23:51:05,553 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-29 23:51:05,554 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-29 23:51:05,555 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-29 23:51:05,556 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-29 23:51:05,558 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-29 23:51:05,560 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-29 23:51:05,562 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-29 23:51:05,564 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-29 23:51:05,565 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-29 23:51:05,567 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-29 23:51:05,567 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-29 23:51:05,568 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-29 23:51:05,569 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-29 23:51:05,570 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-29 23:51:05,571 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-29 23:51:05,571 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-29 23:51:05,572 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-29 23:51:05,573 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-29 23:51:05,573 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-29 23:51:05,574 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-29 23:51:05,574 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 23:51:05,600 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-29 23:51:05,600 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-29 23:51:05,601 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-03-29 23:51:05,601 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-03-29 23:51:05,602 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-29 23:51:05,602 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-29 23:51:05,602 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-29 23:51:05,602 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-29 23:51:05,602 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-29 23:51:05,603 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-03-29 23:51:05,603 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-03-29 23:51:05,603 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-29 23:51:05,603 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-29 23:51:05,604 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-29 23:51:05,604 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-29 23:51:05,604 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-29 23:51:05,604 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-29 23:51:05,604 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-29 23:51:05,605 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-29 23:51:05,605 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-29 23:51:05,605 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-29 23:51:05,605 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-29 23:51:05,605 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-29 23:51:05,606 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-29 23:51:05,606 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-29 23:51:05,606 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-29 23:51:05,606 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-29 23:51:05,606 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-29 23:51:05,607 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-29 23:51:05,607 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-29 23:51:05,607 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-29 23:51:05,607 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 23:51:05,607 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-29 23:51:05,608 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-29 23:51:05,608 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-29 23:51:05,609 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-03-29 23:51:05,609 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-03-29 23:51:05,644 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-29 23:51:05,657 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-29 23:51:05,661 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-29 23:51:05,663 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-29 23:51:05,663 INFO L276 PluginConnector]: CDTParser initialized [2018-03-29 23:51:05,664 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength6_true-valid-memsafety_true-termination.c [2018-03-29 23:51:05,993 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG6a9cb6df0 [2018-03-29 23:51:06,113 INFO L287 CDTParser]: IsIndexed: true [2018-03-29 23:51:06,113 INFO L288 CDTParser]: Found 1 translation units. [2018-03-29 23:51:06,114 INFO L168 CDTParser]: Scanning ArraysOfVariableLength6_true-valid-memsafety_true-termination.c [2018-03-29 23:51:06,114 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-29 23:51:06,114 INFO L215 ultiparseSymbolTable]: [2018-03-29 23:51:06,115 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-29 23:51:06,115 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength6_true-valid-memsafety_true-termination.c [2018-03-29 23:51:06,115 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo ('foo') in ArraysOfVariableLength6_true-valid-memsafety_true-termination.c [2018-03-29 23:51:06,115 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-29 23:51:06,115 INFO L233 ultiparseSymbolTable]: [2018-03-29 23:51:06,132 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG6a9cb6df0 [2018-03-29 23:51:06,137 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-29 23:51:06,139 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-03-29 23:51:06,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-29 23:51:06,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-29 23:51:06,146 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-29 23:51:06,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 11:51:06" (1/1) ... [2018-03-29 23:51:06,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b60d6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 11:51:06, skipping insertion in model container [2018-03-29 23:51:06,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 11:51:06" (1/1) ... [2018-03-29 23:51:06,163 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 23:51:06,178 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 23:51:06,328 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 23:51:06,350 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 23:51:06,354 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-03-29 23:51:06,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 11:51:06 WrapperNode [2018-03-29 23:51:06,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-29 23:51:06,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-29 23:51:06,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-29 23:51:06,362 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-29 23:51:06,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 11:51:06" (1/1) ... [2018-03-29 23:51:06,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 11:51:06" (1/1) ... [2018-03-29 23:51:06,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 11:51:06" (1/1) ... [2018-03-29 23:51:06,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 11:51:06" (1/1) ... [2018-03-29 23:51:06,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 11:51:06" (1/1) ... [2018-03-29 23:51:06,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 11:51:06" (1/1) ... [2018-03-29 23:51:06,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 11:51:06" (1/1) ... [2018-03-29 23:51:06,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-29 23:51:06,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-29 23:51:06,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-29 23:51:06,392 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-29 23:51:06,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 11:51:06" (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 23:51:06,446 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-29 23:51:06,446 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-29 23:51:06,446 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo [2018-03-29 23:51:06,446 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-29 23:51:06,447 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo [2018-03-29 23:51:06,447 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-29 23:51:06,447 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-29 23:51:06,447 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-29 23:51:06,447 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-29 23:51:06,447 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-29 23:51:06,448 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-29 23:51:06,448 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-29 23:51:06,448 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-29 23:51:06,721 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-29 23:51:06,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 11:51:06 BoogieIcfgContainer [2018-03-29 23:51:06,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-29 23:51:06,722 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-03-29 23:51:06,722 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-03-29 23:51:06,723 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-03-29 23:51:06,726 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 11:51:06" (1/1) ... [2018-03-29 23:51:06,732 INFO L139 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-03-29 23:51:06,733 INFO L140 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-03-29 23:51:06,746 INFO L298 apSepIcfgTransformer]: Heap separator: starting memloc-array-style preprocessing [2018-03-29 23:51:06,755 INFO L333 apSepIcfgTransformer]: finished MemlocArrayUpdater, created 0 location literals (each corresponds to one heap write) [2018-03-29 23:51:06,764 INFO L393 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-03-29 23:51:06,764 DEBUG L397 apSepIcfgTransformer]: storeIndexInfoToLocLiteral: Map: [2018-03-29 23:51:06,766 DEBUG L399 apSepIcfgTransformer]: edgeToIndexToStoreIndexInfo: NestedMap2: [2018-03-29 23:51:06,822 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-03-29 23:51:12,588 INFO L314 AbstractInterpreter]: Visited 70 different actions 298 times. Merged at 48 different actions 155 times. Never widened. Found 19 fixpoints after 8 different actions. Largest state had 21 variables. [2018-03-29 23:51:12,590 INFO L405 apSepIcfgTransformer]: finished equality analysis [2018-03-29 23:51:12,597 INFO L195 HeapSepPreAnalysis]: Number of read from array group [#memory_int] : 1 [2018-03-29 23:51:12,597 INFO L415 apSepIcfgTransformer]: Finished pre analysis before partitioning [2018-03-29 23:51:12,598 INFO L416 apSepIcfgTransformer]: array groups: Set: [#memory_int] [2018-03-29 23:51:12,598 INFO L418 apSepIcfgTransformer]: select infos: Set: ((select (select |v_#memory_int_1| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_2) (+ v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_6 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset_2)), at (SUMMARY for call #t~mem1 := read~int(~b.base, ~b.offset + ~i~0 * 1, 1); srcloc: L16')) [2018-03-29 23:51:12,601 DEBUG L379 HeapPartitionManager]: creating LocationBlock locs_30 [2018-03-29 23:51:12,602 DEBUG L380 HeapPartitionManager]: with contents [NoStoreIndexInfo] [2018-03-29 23:51:12,602 DEBUG L329 HeapPartitionManager]: adding LocationBlock locs_30 [2018-03-29 23:51:12,602 DEBUG L330 HeapPartitionManager]: at dimension 0 for ((select (select |v_#memory_int_1| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_2) (+ v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_6 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset_2)), at (SUMMARY for call #t~mem1 := read~int(~b.base, ~b.offset + ~i~0 * 1, 1); srcloc: L16')) [2018-03-29 23:51:12,602 DEBUG L331 HeapPartitionManager]: write locations: [NoStoreIndexInfo] [2018-03-29 23:51:12,602 DEBUG L379 HeapPartitionManager]: creating LocationBlock locs_30 [2018-03-29 23:51:12,602 DEBUG L380 HeapPartitionManager]: with contents [NoStoreIndexInfo] [2018-03-29 23:51:12,603 DEBUG L329 HeapPartitionManager]: adding LocationBlock locs_30 [2018-03-29 23:51:12,603 DEBUG L330 HeapPartitionManager]: at dimension 1 for ((select (select |v_#memory_int_1| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_2) (+ v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_6 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset_2)), at (SUMMARY for call #t~mem1 := read~int(~b.base, ~b.offset + ~i~0 * 1, 1); srcloc: L16')) [2018-03-29 23:51:12,603 DEBUG L331 HeapPartitionManager]: write locations: [NoStoreIndexInfo] [2018-03-29 23:51:12,603 INFO L336 HeapPartitionManager]: partitioning result: [2018-03-29 23:51:12,603 INFO L341 HeapPartitionManager]: location blocks for array group [#memory_int] [2018-03-29 23:51:12,603 INFO L350 HeapPartitionManager]: at dimension 0 [2018-03-29 23:51:12,603 INFO L351 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-03-29 23:51:12,604 INFO L352 HeapPartitionManager]: # location blocks :1 [2018-03-29 23:51:12,604 DEBUG L359 HeapPartitionManager]: location block contents: [2018-03-29 23:51:12,604 DEBUG L362 HeapPartitionManager]: [NoStoreIndexInfo] [2018-03-29 23:51:12,604 INFO L350 HeapPartitionManager]: at dimension 1 [2018-03-29 23:51:12,604 INFO L351 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-03-29 23:51:12,604 INFO L352 HeapPartitionManager]: # location blocks :1 [2018-03-29 23:51:12,604 DEBUG L359 HeapPartitionManager]: location block contents: [2018-03-29 23:51:12,604 DEBUG L362 HeapPartitionManager]: [NoStoreIndexInfo] [2018-03-29 23:51:12,605 INFO L124 ransitionTransformer]: executing heap partitioning transformation [2018-03-29 23:51:12,608 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,608 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:51:12,608 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,608 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,609 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,609 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:51:12,609 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,609 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,609 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,609 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 23:51:12,609 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,610 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,610 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,610 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:51:12,610 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,610 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,611 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,611 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{main_~i~1=v_main_~i~1_9} AuxVars[] AssignedVars[main_~i~1] [2018-03-29 23:51:12,611 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,611 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,612 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,612 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 23:51:12,612 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,612 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,612 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,612 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{main_~b~0=v_main_~b~0_3} AuxVars[] AssignedVars[main_~b~0] [2018-03-29 23:51:12,613 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,613 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,613 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,613 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:51:12,613 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,613 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,613 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,613 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{main_~buffer~0=v_main_~buffer~0_1} AuxVars[] AssignedVars[main_~buffer~0] [2018-03-29 23:51:12,613 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,614 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,614 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,614 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 23:51:12,614 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,614 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,614 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,614 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 23:51:12,615 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,615 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,615 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,615 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 23:51:12,615 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,615 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,615 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,615 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:51:12,616 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,616 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,616 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,616 DEBUG L259 ransitionTransformer]: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:51:12,616 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,616 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,617 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,617 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 23:51:12,617 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,617 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,617 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,617 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 23:51:12,617 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,618 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,618 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,618 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 23:51:12,618 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,618 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,619 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,619 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 23:51:12,619 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,619 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,619 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,619 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:51:12,620 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,620 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,620 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,620 DEBUG L259 ransitionTransformer]: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:51:12,620 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,620 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,620 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,621 DEBUG L259 ransitionTransformer]: Formula: (or (not (<= 0 v_main_~i~1_13)) (not (< v_main_~i~1_13 100))) InVars {main_~i~1=v_main_~i~1_13} OutVars{main_~i~1=v_main_~i~1_13} AuxVars[] AssignedVars[] [2018-03-29 23:51:12,621 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,621 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,621 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,621 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:51:12,622 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,622 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,622 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,622 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 23:51:12,622 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,622 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,623 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,623 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 23:51:12,623 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,623 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,623 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,624 DEBUG L259 ransitionTransformer]: Formula: (= |v_main_#res_2| 0) InVars {} OutVars{main_#res=|v_main_#res_2|} AuxVars[] AssignedVars[main_#res] [2018-03-29 23:51:12,624 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,624 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,624 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,624 DEBUG L259 ransitionTransformer]: Formula: (and (= |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~sizeInParam_1| 32) (= |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~b.offsetInParam_1| v_main_~c~0.offset_4) (= |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~b.baseInParam_1| v_main_~c~0.base_4)) InVars {main_~c~0.offset=v_main_~c~0.offset_4, main_~c~0.base=v_main_~c~0.base_4} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~b.base=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~b.baseInParam_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~b.offset=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~b.offsetInParam_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~sizeInParam_1|} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~b.base, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~b.offset, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size] [2018-03-29 23:51:12,624 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,624 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,625 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,625 DEBUG L259 ransitionTransformer]: Formula: (or (not (< v_main_~i~1_4 100)) (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 23:51:12,625 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,625 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,625 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,625 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:51:12,625 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,625 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,626 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,626 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 23:51:12,626 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,626 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,626 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,627 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 23:51:12,627 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,627 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,627 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,627 DEBUG L259 ransitionTransformer]: Formula: (= v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size_1 |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size_1|) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size_1|} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~size_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size_1} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size] [2018-03-29 23:51:12,627 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,627 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,628 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,628 DEBUG L259 ransitionTransformer]: Formula: (not (= 32 (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 23:51:12,628 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,628 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,629 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,629 DEBUG L259 ransitionTransformer]: Formula: (= 32 (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 23:51:12,629 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,629 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,629 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,629 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 23:51:12,629 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,629 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,630 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,630 DEBUG L259 ransitionTransformer]: Formula: (= v_main_~b~0_4 (store v_main_~b~0_5 v_main_~i~1_14 |v_main_#t~ret3_3|)) InVars {main_~i~1=v_main_~i~1_14, main_~b~0=v_main_~b~0_5, main_#t~ret3=|v_main_#t~ret3_3|} OutVars{main_~i~1=v_main_~i~1_14, main_~b~0=v_main_~b~0_4, main_#t~ret3=|v_main_#t~ret3_3|} AuxVars[] AssignedVars[main_~b~0] [2018-03-29 23:51:12,630 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,630 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,630 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,630 DEBUG L259 ransitionTransformer]: Formula: (and (= v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset_1 |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~b.offset_1|) (= v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_1 |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~b.base_1|)) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~b.base=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~b.base_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~b.offset=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~b.offset_1|} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~b.base=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~b.base_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~b.offset=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#in~b.offset_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_1, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset_1} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset] [2018-03-29 23:51:12,631 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,631 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,631 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,631 DEBUG L259 ransitionTransformer]: Formula: (= |v_main_#res_1| 1) InVars {} OutVars{main_#res=|v_main_#res_1|} AuxVars[] AssignedVars[main_#res] [2018-03-29 23:51:12,631 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,631 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,631 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,632 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 23:51:12,632 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,632 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,632 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,632 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 23:51:12,633 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,633 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,633 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,633 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 23:51:12,633 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,634 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,634 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,634 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{main_#t~ret3=|v_main_#t~ret3_4|} AuxVars[] AssignedVars[main_#t~ret3] [2018-03-29 23:51:12,634 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,634 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,634 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,634 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~a~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~a~0_1} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~a~0] [2018-03-29 23:51:12,635 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,635 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,635 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,635 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 23:51:12,635 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,635 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,635 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,635 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 23:51:12,636 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,636 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,636 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,636 DEBUG L259 ransitionTransformer]: Formula: (= |v_main_#t~post2_1| v_main_~i~1_15) InVars {main_~i~1=v_main_~i~1_15} OutVars{main_~i~1=v_main_~i~1_15, main_#t~post2=|v_main_#t~post2_1|} AuxVars[] AssignedVars[main_#t~post2] [2018-03-29 23:51:12,636 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,636 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,636 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,636 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_1} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0] [2018-03-29 23:51:12,636 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,637 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,637 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,637 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 23:51:12,637 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,637 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,637 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,637 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{main_#t~post4=|v_main_#t~post4_3|} AuxVars[] AssignedVars[main_#t~post4] [2018-03-29 23:51:12,637 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,637 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,638 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,638 DEBUG L259 ransitionTransformer]: Formula: (= v_main_~i~1_16 (+ |v_main_#t~post2_2| 1)) InVars {main_#t~post2=|v_main_#t~post2_2|} OutVars{main_~i~1=v_main_~i~1_16, main_#t~post2=|v_main_#t~post2_2|} AuxVars[] AssignedVars[main_~i~1] [2018-03-29 23:51:12,638 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,638 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,638 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,638 DEBUG L259 ransitionTransformer]: Formula: (= v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_2 0) InVars {} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_2} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0] [2018-03-29 23:51:12,638 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,638 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,638 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,639 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{main_#t~post2=|v_main_#t~post2_3|} AuxVars[] AssignedVars[main_#t~post2] [2018-03-29 23:51:12,639 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,639 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,639 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,639 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:51:12,639 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,639 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,639 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,640 DEBUG L259 ransitionTransformer]: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:51:12,640 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,640 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,640 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,640 DEBUG L259 ransitionTransformer]: Formula: (not (< v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_3 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size_2)) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_3, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size_2} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_3, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size_2} AuxVars[] AssignedVars[] [2018-03-29 23:51:12,641 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,641 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,641 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,641 DEBUG L259 ransitionTransformer]: Formula: (< v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_4 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size_3) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_4, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size_3} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_4, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~size_3} AuxVars[] AssignedVars[] [2018-03-29 23:51:12,641 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,641 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,642 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,642 DEBUG L259 ransitionTransformer]: Formula: (= |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#res_1| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_11) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_11} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#res=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#res_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_11} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#res] [2018-03-29 23:51:12,642 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,642 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,642 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,643 DEBUG L259 ransitionTransformer]: Formula: (or (not (<= 0 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_5)) (not (< v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_5 32))) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_5} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_5} AuxVars[] AssignedVars[] [2018-03-29 23:51:12,643 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,643 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,643 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,643 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:51:12,644 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,644 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,644 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,644 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:51:12,644 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,644 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,647 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,648 DEBUG L259 ransitionTransformer]: Formula: (let ((.cse0 (+ v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_6 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset_2))) (and (<= 0 .cse0) (<= (+ v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_6 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset_2 1) (select |v_#length_1| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_2)) (= |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~mem1_1| (select (select |v_#memory_int_part_locs_30_locs_30_1| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_2) .cse0)) (= 1 (select |v_#valid_3| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_2)))) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_2, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset_2, #valid=|v_#valid_3|, #length=|v_#length_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_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_true_termination_c__foo_~b.base=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_2, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset_2, #valid=|v_#valid_3|, #length=|v_#length_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_6, #memory_int_part_locs_30_locs_30=|v_#memory_int_part_locs_30_locs_30_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~mem1=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~mem1_1|} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~mem1] [2018-03-29 23:51:12,648 DEBUG L266 ransitionTransformer]: formula has changed [2018-03-29 23:51:12,648 DEBUG L267 ransitionTransformer]: old formula: [2018-03-29 23:51:12,648 DEBUG L268 ransitionTransformer]: (let ((.cse0 (+ v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_6 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset_2))) (and (<= 0 .cse0) (<= (+ v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_6 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset_2 1) (select |v_#length_1| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_2)) (= |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~mem1_1| (select (select |v_#memory_int_1| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_2) .cse0)) (= 1 (select |v_#valid_3| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_2)))) [2018-03-29 23:51:12,649 DEBUG L269 ransitionTransformer]: new formula: [2018-03-29 23:51:12,649 DEBUG L270 ransitionTransformer]: (let ((.cse0 (+ v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_6 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset_2))) (and (<= 0 .cse0) (<= (+ v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_6 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset_2 1) (select |v_#length_1| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_2)) (= |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~mem1_1| (select (select |v_#memory_int_part_locs_30_locs_30_1| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_2) .cse0)) (= 1 (select |v_#valid_3| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_2)))) [2018-03-29 23:51:12,649 DEBUG L274 ransitionTransformer]: invars have changed [2018-03-29 23:51:12,649 DEBUG L275 ransitionTransformer]: old invars: [2018-03-29 23:51:12,649 DEBUG L276 ransitionTransformer]: {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_2, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_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_true_termination_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_6} [2018-03-29 23:51:12,649 DEBUG L277 ransitionTransformer]: new invars: [2018-03-29 23:51:12,650 DEBUG L278 ransitionTransformer]: {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_2, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset_2, #valid=|v_#valid_3|, #length=|v_#length_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_6, #memory_int_part_locs_30_locs_30=|v_#memory_int_part_locs_30_locs_30_1|} [2018-03-29 23:51:12,650 DEBUG L282 ransitionTransformer]: outvars have changed [2018-03-29 23:51:12,650 DEBUG L283 ransitionTransformer]: old outvars: [2018-03-29 23:51:12,650 DEBUG L284 ransitionTransformer]: {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_2, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_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_true_termination_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_6, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~mem1=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~mem1_1|} [2018-03-29 23:51:12,650 DEBUG L285 ransitionTransformer]: new outvars: [2018-03-29 23:51:12,650 DEBUG L286 ransitionTransformer]: {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_2, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset_2, #valid=|v_#valid_3|, #length=|v_#length_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_6, #memory_int_part_locs_30_locs_30=|v_#memory_int_part_locs_30_locs_30_1|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~mem1=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~mem1_1|} [2018-03-29 23:51:12,651 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,651 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,651 DEBUG L259 ransitionTransformer]: Formula: (not (= 1 (select |v_#valid_4| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_3))) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_3, #valid=|v_#valid_4|} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_3, #valid=|v_#valid_4|} AuxVars[] AssignedVars[] [2018-03-29 23:51:12,651 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,652 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,652 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,652 DEBUG L259 ransitionTransformer]: Formula: (or (not (<= (+ v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_7 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset_3 1) (select |v_#length_2| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_4))) (not (<= 0 (+ v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_7 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset_3)))) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_4, #length=|v_#length_2|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_7, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset_3} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.base_4, #length=|v_#length_2|, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_7, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~b.offset_3} AuxVars[] AssignedVars[] [2018-03-29 23:51:12,652 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,652 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,652 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,652 DEBUG L259 ransitionTransformer]: Formula: (= v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~a~0_2 (store v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~a~0_3 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_8 |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~mem1_2|)) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_8, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~a~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~a~0_3, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~mem1=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~mem1_2|} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_8, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~a~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~a~0_2, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~mem1=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~mem1_2|} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~a~0] [2018-03-29 23:51:12,653 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,653 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,653 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,653 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~mem1=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~mem1_3|} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~mem1] [2018-03-29 23:51:12,653 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,653 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,653 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,654 DEBUG L259 ransitionTransformer]: Formula: (= |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~post0_1| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_9) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_9} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_9, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~post0=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~post0_1|} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~post0] [2018-03-29 23:51:12,654 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,654 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,654 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,654 DEBUG L259 ransitionTransformer]: Formula: (= v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_10 (+ |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~post0_2| 1)) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~post0=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~post0_2|} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0=v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0_10, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~post0=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~post0_2|} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_~i~0] [2018-03-29 23:51:12,654 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,655 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,655 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,655 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~post0=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~post0_3|} AuxVars[] AssignedVars[__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#t~post0] [2018-03-29 23:51:12,655 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,655 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,656 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,656 DEBUG L259 ransitionTransformer]: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-03-29 23:51:12,656 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,656 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,656 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,656 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 23:51:12,657 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,657 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,657 DEBUG L258 ransitionTransformer]: transformed transition [2018-03-29 23:51:12,657 DEBUG L259 ransitionTransformer]: Formula: (= |v_main_#t~ret3_5| |v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#resOutParam_1|) InVars {__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#res=|v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__foo_#resOutParam_1|} OutVars{main_#t~ret3=|v_main_#t~ret3_5|} AuxVars[] AssignedVars[main_#t~ret3] [2018-03-29 23:51:12,657 DEBUG L262 ransitionTransformer]: transformula unchanged [2018-03-29 23:51:12,657 DEBUG L288 ransitionTransformer]: [2018-03-29 23:51:12,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 29.03 11:51:12 BasicIcfg [2018-03-29 23:51:12,659 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-03-29 23:51:12,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-29 23:51:12,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-29 23:51:12,663 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-29 23:51:12,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.03 11:51:06" (1/4) ... [2018-03-29 23:51:12,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16bec09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 11:51:12, skipping insertion in model container [2018-03-29 23:51:12,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 11:51:06" (2/4) ... [2018-03-29 23:51:12,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16bec09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 11:51:12, skipping insertion in model container [2018-03-29 23:51:12,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 11:51:06" (3/4) ... [2018-03-29 23:51:12,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16bec09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 11:51:12, skipping insertion in model container [2018-03-29 23:51:12,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 29.03 11:51:12" (4/4) ... [2018-03-29 23:51:12,666 INFO L107 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-03-29 23:51:12,673 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-29 23:51:12,680 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-03-29 23:51:12,713 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-29 23:51:12,713 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-29 23:51:12,713 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-29 23:51:12,713 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-29 23:51:12,714 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-29 23:51:12,714 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-29 23:51:12,714 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-29 23:51:12,714 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-29 23:51:12,714 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-29 23:51:12,714 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-29 23:51:12,725 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-03-29 23:51:12,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-03-29 23:51:12,730 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:12,731 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 23:51:12,731 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:51:12,735 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 23:51:12,747 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:12,786 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:12,833 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 23:51:12,833 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:12,865 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 23:51:12,889 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 23:51:12,889 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2018-03-29 23:51:12,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-03-29 23:51:12,902 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-03-29 23:51:12,902 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-03-29 23:51:12,904 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 5 states. [2018-03-29 23:51:13,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:13,037 INFO L93 Difference]: Finished difference Result 141 states and 163 transitions. [2018-03-29 23:51:13,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-29 23:51:13,039 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-03-29 23:51:13,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:13,051 INFO L225 Difference]: With dead ends: 141 [2018-03-29 23:51:13,051 INFO L226 Difference]: Without dead ends: 84 [2018-03-29 23:51:13,055 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-03-29 23:51:13,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-03-29 23:51:13,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 68. [2018-03-29 23:51:13,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-03-29 23:51:13,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2018-03-29 23:51:13,104 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 16 [2018-03-29 23:51:13,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:13,104 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2018-03-29 23:51:13,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-03-29 23:51:13,104 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2018-03-29 23:51:13,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-03-29 23:51:13,105 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:13,105 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 23:51:13,106 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:51:13,106 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 23:51:13,119 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:13,139 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:13,148 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 23:51:13,149 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:13,170 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 23:51:13,206 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 23:51:13,206 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2018-03-29 23:51:13,207 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-29 23:51:13,208 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-29 23:51:13,208 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-03-29 23:51:13,208 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand 4 states. [2018-03-29 23:51:13,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:13,271 INFO L93 Difference]: Finished difference Result 82 states and 86 transitions. [2018-03-29 23:51:13,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-29 23:51:13,272 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-03-29 23:51:13,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:13,275 INFO L225 Difference]: With dead ends: 82 [2018-03-29 23:51:13,275 INFO L226 Difference]: Without dead ends: 81 [2018-03-29 23:51:13,276 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 23:51:13,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-03-29 23:51:13,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 71. [2018-03-29 23:51:13,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-03-29 23:51:13,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2018-03-29 23:51:13,284 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 25 [2018-03-29 23:51:13,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:13,285 INFO L459 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2018-03-29 23:51:13,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-29 23:51:13,285 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2018-03-29 23:51:13,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-03-29 23:51:13,286 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:13,286 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 23:51:13,286 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:51:13,286 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 23:51:13,295 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:13,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:13,312 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:13,329 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 23:51:13,330 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 23:51:13,332 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 23:51:13,332 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-29 23:51:13,352 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 23:51:13,352 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:13,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:13,409 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 23:51:13,409 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2018-03-29 23:51:13,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-03-29 23:51:13,409 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-03-29 23:51:13,410 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-03-29 23:51:13,410 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand 6 states. [2018-03-29 23:51:13,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:13,540 INFO L93 Difference]: Finished difference Result 71 states and 75 transitions. [2018-03-29 23:51:13,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-29 23:51:13,541 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-03-29 23:51:13,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:13,542 INFO L225 Difference]: With dead ends: 71 [2018-03-29 23:51:13,542 INFO L226 Difference]: Without dead ends: 70 [2018-03-29 23:51:13,542 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-03-29 23:51:13,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-03-29 23:51:13,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2018-03-29 23:51:13,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-03-29 23:51:13,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 74 transitions. [2018-03-29 23:51:13,550 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 74 transitions. Word has length 26 [2018-03-29 23:51:13,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:13,550 INFO L459 AbstractCegarLoop]: Abstraction has 70 states and 74 transitions. [2018-03-29 23:51:13,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-03-29 23:51:13,550 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 74 transitions. [2018-03-29 23:51:13,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-03-29 23:51:13,551 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:13,551 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 23:51:13,551 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:51:13,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1874497956, 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 23:51:13,570 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:13,582 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:13,587 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 23:51:13,587 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 23:51:13,590 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 23:51:13,590 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-29 23:51:13,682 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 23:51:13,682 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:13,793 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 23:51:13,821 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 23:51:13,821 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2018-03-29 23:51:13,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-29 23:51:13,821 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-29 23:51:13,821 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-03-29 23:51:13,822 INFO L87 Difference]: Start difference. First operand 70 states and 74 transitions. Second operand 12 states. [2018-03-29 23:51:14,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:14,012 INFO L93 Difference]: Finished difference Result 79 states and 83 transitions. [2018-03-29 23:51:14,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-03-29 23:51:14,012 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 26 [2018-03-29 23:51:14,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:14,014 INFO L225 Difference]: With dead ends: 79 [2018-03-29 23:51:14,014 INFO L226 Difference]: Without dead ends: 78 [2018-03-29 23:51:14,015 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2018-03-29 23:51:14,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-03-29 23:51:14,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 71. [2018-03-29 23:51:14,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-03-29 23:51:14,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2018-03-29 23:51:14,023 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 26 [2018-03-29 23:51:14,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:14,024 INFO L459 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2018-03-29 23:51:14,024 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-29 23:51:14,024 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2018-03-29 23:51:14,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-03-29 23:51:14,026 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:14,026 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 23:51:14,026 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:51:14,026 INFO L82 PathProgramCache]: Analyzing trace with hash -34853161, 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 23:51:14,039 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:14,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:14,057 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:14,132 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:14,132 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:14,207 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:14,230 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:14,230 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-03-29 23:51:14,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-03-29 23:51:14,231 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-03-29 23:51:14,231 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-03-29 23:51:14,231 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand 8 states. [2018-03-29 23:51:14,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:14,347 INFO L93 Difference]: Finished difference Result 105 states and 112 transitions. [2018-03-29 23:51:14,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-03-29 23:51:14,347 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2018-03-29 23:51:14,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:14,348 INFO L225 Difference]: With dead ends: 105 [2018-03-29 23:51:14,348 INFO L226 Difference]: Without dead ends: 104 [2018-03-29 23:51:14,349 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-03-29 23:51:14,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-03-29 23:51:14,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 88. [2018-03-29 23:51:14,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-03-29 23:51:14,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 95 transitions. [2018-03-29 23:51:14,356 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 95 transitions. Word has length 34 [2018-03-29 23:51:14,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:14,356 INFO L459 AbstractCegarLoop]: Abstraction has 88 states and 95 transitions. [2018-03-29 23:51:14,356 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-03-29 23:51:14,356 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 95 transitions. [2018-03-29 23:51:14,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-03-29 23:51:14,357 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:14,357 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] [2018-03-29 23:51:14,357 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:51:14,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1080447759, 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 23:51:14,369 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:14,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:14,388 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:14,392 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 23:51:14,393 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 23:51:14,397 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 23:51:14,397 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-29 23:51:14,457 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:14,457 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:14,542 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:14,563 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:14,563 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2018-03-29 23:51:14,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-29 23:51:14,563 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-29 23:51:14,563 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2018-03-29 23:51:14,564 INFO L87 Difference]: Start difference. First operand 88 states and 95 transitions. Second operand 16 states. [2018-03-29 23:51:14,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:14,809 INFO L93 Difference]: Finished difference Result 99 states and 106 transitions. [2018-03-29 23:51:14,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-03-29 23:51:14,810 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 35 [2018-03-29 23:51:14,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:14,811 INFO L225 Difference]: With dead ends: 99 [2018-03-29 23:51:14,811 INFO L226 Difference]: Without dead ends: 98 [2018-03-29 23:51:14,812 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2018-03-29 23:51:14,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-03-29 23:51:14,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 89. [2018-03-29 23:51:14,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-03-29 23:51:14,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 95 transitions. [2018-03-29 23:51:14,820 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 95 transitions. Word has length 35 [2018-03-29 23:51:14,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:14,821 INFO L459 AbstractCegarLoop]: Abstraction has 89 states and 95 transitions. [2018-03-29 23:51:14,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-29 23:51:14,821 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 95 transitions. [2018-03-29 23:51:14,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-03-29 23:51:14,822 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:14,822 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 23:51:14,822 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:51:14,823 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 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 23:51:14,829 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:14,841 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:14,858 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 23:51:14,858 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:14,893 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 23:51:14,914 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 23:51:14,915 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-03-29 23:51:14,915 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-03-29 23:51:14,915 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-03-29 23:51:14,915 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-03-29 23:51:14,915 INFO L87 Difference]: Start difference. First operand 89 states and 95 transitions. Second operand 8 states. [2018-03-29 23:51:14,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:14,987 INFO L93 Difference]: Finished difference Result 165 states and 177 transitions. [2018-03-29 23:51:14,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-29 23:51:14,988 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2018-03-29 23:51:14,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:14,988 INFO L225 Difference]: With dead ends: 165 [2018-03-29 23:51:14,988 INFO L226 Difference]: Without dead ends: 89 [2018-03-29 23:51:14,989 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2018-03-29 23:51:14,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-03-29 23:51:14,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2018-03-29 23:51:14,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-03-29 23:51:14,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 94 transitions. [2018-03-29 23:51:14,997 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 94 transitions. Word has length 37 [2018-03-29 23:51:14,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:14,998 INFO L459 AbstractCegarLoop]: Abstraction has 89 states and 94 transitions. [2018-03-29 23:51:14,998 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-03-29 23:51:14,998 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 94 transitions. [2018-03-29 23:51:15,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-03-29 23:51:15,000 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:15,000 INFO L355 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 23:51:15,000 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:51:15,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1865803603, 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 23:51:15,007 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:15,021 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:15,059 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:15,060 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:15,114 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:15,135 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:15,136 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-03-29 23:51:15,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-29 23:51:15,136 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-29 23:51:15,137 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2018-03-29 23:51:15,137 INFO L87 Difference]: Start difference. First operand 89 states and 94 transitions. Second operand 12 states. [2018-03-29 23:51:15,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:15,251 INFO L93 Difference]: Finished difference Result 168 states and 178 transitions. [2018-03-29 23:51:15,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-03-29 23:51:15,252 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 46 [2018-03-29 23:51:15,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:15,252 INFO L225 Difference]: With dead ends: 168 [2018-03-29 23:51:15,252 INFO L226 Difference]: Without dead ends: 89 [2018-03-29 23:51:15,253 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=224, Unknown=0, NotChecked=0, Total=342 [2018-03-29 23:51:15,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-03-29 23:51:15,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2018-03-29 23:51:15,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-03-29 23:51:15,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 92 transitions. [2018-03-29 23:51:15,259 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 92 transitions. Word has length 46 [2018-03-29 23:51:15,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:15,260 INFO L459 AbstractCegarLoop]: Abstraction has 89 states and 92 transitions. [2018-03-29 23:51:15,260 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-29 23:51:15,260 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 92 transitions. [2018-03-29 23:51:15,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-03-29 23:51:15,261 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:15,261 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 23:51:15,261 INFO L408 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:51:15,261 INFO L82 PathProgramCache]: Analyzing trace with hash -607062665, 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 23:51:15,272 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:15,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:15,290 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:15,336 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:15,336 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:15,408 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:15,430 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:15,430 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2018-03-29 23:51:15,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-29 23:51:15,431 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-29 23:51:15,431 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-03-29 23:51:15,431 INFO L87 Difference]: Start difference. First operand 89 states and 92 transitions. Second operand 16 states. [2018-03-29 23:51:15,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:15,765 INFO L93 Difference]: Finished difference Result 146 states and 156 transitions. [2018-03-29 23:51:15,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-03-29 23:51:15,766 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 52 [2018-03-29 23:51:15,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:15,767 INFO L225 Difference]: With dead ends: 146 [2018-03-29 23:51:15,767 INFO L226 Difference]: Without dead ends: 145 [2018-03-29 23:51:15,767 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 89 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 23:51:15,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-03-29 23:51:15,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 124. [2018-03-29 23:51:15,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-03-29 23:51:15,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 134 transitions. [2018-03-29 23:51:15,773 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 134 transitions. Word has length 52 [2018-03-29 23:51:15,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:15,773 INFO L459 AbstractCegarLoop]: Abstraction has 124 states and 134 transitions. [2018-03-29 23:51:15,773 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-29 23:51:15,773 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 134 transitions. [2018-03-29 23:51:15,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-03-29 23:51:15,774 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:15,774 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 23:51:15,774 INFO L408 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:51:15,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1639073199, now seen corresponding path program 2 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 23:51:15,784 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:15,799 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:15,801 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 23:51:15,801 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 23:51:15,804 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 23:51:15,804 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-29 23:51:15,918 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:15,919 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:16,154 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:16,186 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:16,187 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2018-03-29 23:51:16,187 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-03-29 23:51:16,187 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-03-29 23:51:16,187 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2018-03-29 23:51:16,188 INFO L87 Difference]: Start difference. First operand 124 states and 134 transitions. Second operand 24 states. [2018-03-29 23:51:17,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:17,034 INFO L93 Difference]: Finished difference Result 138 states and 148 transitions. [2018-03-29 23:51:17,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-03-29 23:51:17,034 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 53 [2018-03-29 23:51:17,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:17,035 INFO L225 Difference]: With dead ends: 138 [2018-03-29 23:51:17,035 INFO L226 Difference]: Without dead ends: 137 [2018-03-29 23:51:17,036 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=441, Invalid=1539, Unknown=0, NotChecked=0, Total=1980 [2018-03-29 23:51:17,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-03-29 23:51:17,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 125. [2018-03-29 23:51:17,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-03-29 23:51:17,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 132 transitions. [2018-03-29 23:51:17,043 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 132 transitions. Word has length 53 [2018-03-29 23:51:17,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:17,044 INFO L459 AbstractCegarLoop]: Abstraction has 125 states and 132 transitions. [2018-03-29 23:51:17,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-03-29 23:51:17,044 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 132 transitions. [2018-03-29 23:51:17,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-03-29 23:51:17,045 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:17,045 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 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 23:51:17,045 INFO L408 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:51:17,046 INFO L82 PathProgramCache]: Analyzing trace with hash 376307, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 23:51:17,053 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:17,069 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:17,121 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:17,121 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:17,279 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:17,302 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:17,302 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2018-03-29 23:51:17,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-03-29 23:51:17,302 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-03-29 23:51:17,303 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2018-03-29 23:51:17,303 INFO L87 Difference]: Start difference. First operand 125 states and 132 transitions. Second operand 20 states. [2018-03-29 23:51:17,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:17,580 INFO L93 Difference]: Finished difference Result 240 states and 254 transitions. [2018-03-29 23:51:17,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-03-29 23:51:17,580 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 64 [2018-03-29 23:51:17,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:17,581 INFO L225 Difference]: With dead ends: 240 [2018-03-29 23:51:17,582 INFO L226 Difference]: Without dead ends: 125 [2018-03-29 23:51:17,583 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=432, Invalid=900, Unknown=0, NotChecked=0, Total=1332 [2018-03-29 23:51:17,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-03-29 23:51:17,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2018-03-29 23:51:17,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-03-29 23:51:17,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 128 transitions. [2018-03-29 23:51:17,590 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 128 transitions. Word has length 64 [2018-03-29 23:51:17,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:17,591 INFO L459 AbstractCegarLoop]: Abstraction has 125 states and 128 transitions. [2018-03-29 23:51:17,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-03-29 23:51:17,591 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 128 transitions. [2018-03-29 23:51:17,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-03-29 23:51:17,592 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:17,592 INFO L355 BasicCegarLoop]: trace histogram [8, 8, 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, 1] [2018-03-29 23:51:17,592 INFO L408 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:51:17,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1389671753, now seen corresponding path program 3 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 23:51:17,601 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:17,624 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:17,727 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:17,727 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:17,987 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:18,009 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:18,009 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2018-03-29 23:51:18,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-03-29 23:51:18,010 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-03-29 23:51:18,010 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=818, Unknown=0, NotChecked=0, Total=992 [2018-03-29 23:51:18,010 INFO L87 Difference]: Start difference. First operand 125 states and 128 transitions. Second operand 32 states. [2018-03-29 23:51:19,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:19,177 INFO L93 Difference]: Finished difference Result 234 states and 252 transitions. [2018-03-29 23:51:19,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-03-29 23:51:19,177 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 88 [2018-03-29 23:51:19,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:19,178 INFO L225 Difference]: With dead ends: 234 [2018-03-29 23:51:19,178 INFO L226 Difference]: Without dead ends: 233 [2018-03-29 23:51:19,180 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1096, Invalid=3194, Unknown=0, NotChecked=0, Total=4290 [2018-03-29 23:51:19,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2018-03-29 23:51:19,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 196. [2018-03-29 23:51:19,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2018-03-29 23:51:19,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 214 transitions. [2018-03-29 23:51:19,188 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 214 transitions. Word has length 88 [2018-03-29 23:51:19,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:19,189 INFO L459 AbstractCegarLoop]: Abstraction has 196 states and 214 transitions. [2018-03-29 23:51:19,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-03-29 23:51:19,189 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 214 transitions. [2018-03-29 23:51:19,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-03-29 23:51:19,190 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:19,190 INFO L355 BasicCegarLoop]: trace histogram [8, 8, 8, 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, 1] [2018-03-29 23:51:19,190 INFO L408 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:51:19,190 INFO L82 PathProgramCache]: Analyzing trace with hash -130151151, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 23:51:19,197 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:19,224 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:19,230 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 23:51:19,230 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 23:51:19,235 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 23:51:19,235 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-29 23:51:19,453 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:19,453 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:19,857 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 0 proven. 217 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:19,879 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:19,879 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 39 [2018-03-29 23:51:19,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-03-29 23:51:19,879 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-03-29 23:51:19,880 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=1336, Unknown=0, NotChecked=0, Total=1560 [2018-03-29 23:51:19,880 INFO L87 Difference]: Start difference. First operand 196 states and 214 transitions. Second operand 40 states. [2018-03-29 23:51:22,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:22,217 INFO L93 Difference]: Finished difference Result 222 states and 240 transitions. [2018-03-29 23:51:22,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-03-29 23:51:22,217 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 89 [2018-03-29 23:51:22,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:22,218 INFO L225 Difference]: With dead ends: 222 [2018-03-29 23:51:22,219 INFO L226 Difference]: Without dead ends: 221 [2018-03-29 23:51:22,220 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1432 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1521, Invalid=5619, Unknown=0, NotChecked=0, Total=7140 [2018-03-29 23:51:22,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2018-03-29 23:51:22,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 197. [2018-03-29 23:51:22,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2018-03-29 23:51:22,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 208 transitions. [2018-03-29 23:51:22,229 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 208 transitions. Word has length 89 [2018-03-29 23:51:22,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:22,229 INFO L459 AbstractCegarLoop]: Abstraction has 197 states and 208 transitions. [2018-03-29 23:51:22,229 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-03-29 23:51:22,229 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 208 transitions. [2018-03-29 23:51:22,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-03-29 23:51:22,230 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:22,230 INFO L355 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 7, 7, 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 23:51:22,230 INFO L408 AbstractCegarLoop]: === Iteration 14 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:51:22,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1135987917, now seen corresponding path program 3 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 23:51:22,236 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:22,267 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:22,474 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 4 proven. 203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:22,475 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:22,718 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 4 proven. 203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:22,740 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:22,740 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2018-03-29 23:51:22,741 INFO L442 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-03-29 23:51:22,741 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-03-29 23:51:22,741 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=344, Invalid=916, Unknown=0, NotChecked=0, Total=1260 [2018-03-29 23:51:22,741 INFO L87 Difference]: Start difference. First operand 197 states and 208 transitions. Second operand 36 states. [2018-03-29 23:51:23,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:23,613 INFO L93 Difference]: Finished difference Result 384 states and 406 transitions. [2018-03-29 23:51:23,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-03-29 23:51:23,613 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 100 [2018-03-29 23:51:23,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:23,614 INFO L225 Difference]: With dead ends: 384 [2018-03-29 23:51:23,614 INFO L226 Difference]: Without dead ends: 197 [2018-03-29 23:51:23,616 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1500 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1660, Invalid=3596, Unknown=0, NotChecked=0, Total=5256 [2018-03-29 23:51:23,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2018-03-29 23:51:23,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2018-03-29 23:51:23,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2018-03-29 23:51:23,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 200 transitions. [2018-03-29 23:51:23,623 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 200 transitions. Word has length 100 [2018-03-29 23:51:23,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:23,623 INFO L459 AbstractCegarLoop]: Abstraction has 197 states and 200 transitions. [2018-03-29 23:51:23,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-03-29 23:51:23,624 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 200 transitions. [2018-03-29 23:51:23,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-03-29 23:51:23,625 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:23,625 INFO L355 BasicCegarLoop]: trace histogram [16, 16, 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, 1] [2018-03-29 23:51:23,625 INFO L408 AbstractCegarLoop]: === Iteration 15 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:51:23,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1162144457, now seen corresponding path program 4 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 23:51:23,633 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:23,673 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:24,069 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:24,069 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:25,011 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:25,032 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:25,032 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 63 [2018-03-29 23:51:25,033 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-03-29 23:51:25,033 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-03-29 23:51:25,034 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=606, Invalid=3426, Unknown=0, NotChecked=0, Total=4032 [2018-03-29 23:51:25,034 INFO L87 Difference]: Start difference. First operand 197 states and 200 transitions. Second operand 64 states. [2018-03-29 23:51:30,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:30,562 INFO L93 Difference]: Finished difference Result 410 states and 444 transitions. [2018-03-29 23:51:30,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2018-03-29 23:51:30,562 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 160 [2018-03-29 23:51:30,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:30,565 INFO L225 Difference]: With dead ends: 410 [2018-03-29 23:51:30,565 INFO L226 Difference]: Without dead ends: 409 [2018-03-29 23:51:30,569 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3452 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=4624, Invalid=14282, Unknown=0, NotChecked=0, Total=18906 [2018-03-29 23:51:30,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2018-03-29 23:51:30,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 340. [2018-03-29 23:51:30,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-03-29 23:51:30,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 374 transitions. [2018-03-29 23:51:30,581 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 374 transitions. Word has length 160 [2018-03-29 23:51:30,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:30,581 INFO L459 AbstractCegarLoop]: Abstraction has 340 states and 374 transitions. [2018-03-29 23:51:30,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-03-29 23:51:30,581 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 374 transitions. [2018-03-29 23:51:30,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-03-29 23:51:30,582 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:30,582 INFO L355 BasicCegarLoop]: trace histogram [16, 16, 16, 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, 1] [2018-03-29 23:51:30,582 INFO L408 AbstractCegarLoop]: === Iteration 16 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:51:30,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1666739567, now seen corresponding path program 4 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 23:51:30,595 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:30,628 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:30,630 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 23:51:30,631 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 23:51:30,633 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 23:51:30,633 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-29 23:51:31,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 0 proven. 1005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:31,284 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:32,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 0 proven. 1005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:32,397 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:32,397 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 71 [2018-03-29 23:51:32,397 INFO L442 AbstractCegarLoop]: Interpolant automaton has 72 states [2018-03-29 23:51:32,398 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2018-03-29 23:51:32,399 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=688, Invalid=4424, Unknown=0, NotChecked=0, Total=5112 [2018-03-29 23:51:32,399 INFO L87 Difference]: Start difference. First operand 340 states and 374 transitions. Second operand 72 states. [2018-03-29 23:51:41,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:41,085 INFO L93 Difference]: Finished difference Result 390 states and 424 transitions. [2018-03-29 23:51:41,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2018-03-29 23:51:41,086 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 161 [2018-03-29 23:51:41,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:41,088 INFO L225 Difference]: With dead ends: 390 [2018-03-29 23:51:41,088 INFO L226 Difference]: Without dead ends: 389 [2018-03-29 23:51:41,093 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5988 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=5601, Invalid=21459, Unknown=0, NotChecked=0, Total=27060 [2018-03-29 23:51:41,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2018-03-29 23:51:41,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 341. [2018-03-29 23:51:41,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2018-03-29 23:51:41,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 360 transitions. [2018-03-29 23:51:41,104 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 360 transitions. Word has length 161 [2018-03-29 23:51:41,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:41,105 INFO L459 AbstractCegarLoop]: Abstraction has 341 states and 360 transitions. [2018-03-29 23:51:41,105 INFO L460 AbstractCegarLoop]: Interpolant automaton has 72 states. [2018-03-29 23:51:41,105 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 360 transitions. [2018-03-29 23:51:41,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-03-29 23:51:41,107 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:41,107 INFO L355 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 15, 15, 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 23:51:41,108 INFO L408 AbstractCegarLoop]: === Iteration 17 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:51:41,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1879163469, now seen corresponding path program 4 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 23:51:41,118 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:41,155 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:41,550 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 4 proven. 975 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:41,551 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:42,247 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 4 proven. 975 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:42,268 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:42,268 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 68 [2018-03-29 23:51:42,269 INFO L442 AbstractCegarLoop]: Interpolant automaton has 68 states [2018-03-29 23:51:42,269 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2018-03-29 23:51:42,269 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1192, Invalid=3364, Unknown=0, NotChecked=0, Total=4556 [2018-03-29 23:51:42,270 INFO L87 Difference]: Start difference. First operand 341 states and 360 transitions. Second operand 68 states. [2018-03-29 23:51:45,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:45,302 INFO L93 Difference]: Finished difference Result 672 states and 710 transitions. [2018-03-29 23:51:45,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2018-03-29 23:51:45,302 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 172 [2018-03-29 23:51:45,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:45,304 INFO L225 Difference]: With dead ends: 672 [2018-03-29 23:51:45,304 INFO L226 Difference]: Without dead ends: 341 [2018-03-29 23:51:45,306 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 276 SyntacticMatches, 1 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6512 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=6516, Invalid=14364, Unknown=0, NotChecked=0, Total=20880 [2018-03-29 23:51:45,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2018-03-29 23:51:45,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2018-03-29 23:51:45,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2018-03-29 23:51:45,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 344 transitions. [2018-03-29 23:51:45,318 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 344 transitions. Word has length 172 [2018-03-29 23:51:45,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:45,319 INFO L459 AbstractCegarLoop]: Abstraction has 341 states and 344 transitions. [2018-03-29 23:51:45,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 68 states. [2018-03-29 23:51:45,319 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 344 transitions. [2018-03-29 23:51:45,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2018-03-29 23:51:45,320 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:45,320 INFO L355 BasicCegarLoop]: trace histogram [32, 32, 31, 31, 31, 31, 31, 31, 31, 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 23:51:45,321 INFO L408 AbstractCegarLoop]: === Iteration 18 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:51:45,321 INFO L82 PathProgramCache]: Analyzing trace with hash 302459447, now seen corresponding path program 5 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 23:51:45,328 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:45,385 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:46,641 INFO L134 CoverageAnalysis]: Checked inductivity of 4278 backedges. 0 proven. 4278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:46,641 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:51:50,111 INFO L134 CoverageAnalysis]: Checked inductivity of 4278 backedges. 0 proven. 4278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:50,133 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:51:50,133 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64] total 127 [2018-03-29 23:51:50,134 INFO L442 AbstractCegarLoop]: Interpolant automaton has 128 states [2018-03-29 23:51:50,134 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2018-03-29 23:51:50,135 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1277, Invalid=14979, Unknown=0, NotChecked=0, Total=16256 [2018-03-29 23:51:50,135 INFO L87 Difference]: Start difference. First operand 341 states and 344 transitions. Second operand 128 states. [2018-03-29 23:51:55,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:51:55,738 INFO L93 Difference]: Finished difference Result 359 states and 363 transitions. [2018-03-29 23:51:55,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2018-03-29 23:51:55,739 INFO L78 Accepts]: Start accepts. Automaton has 128 states. Word has length 304 [2018-03-29 23:51:55,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:51:55,741 INFO L225 Difference]: With dead ends: 359 [2018-03-29 23:51:55,741 INFO L226 Difference]: Without dead ends: 358 [2018-03-29 23:51:55,742 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 481 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3844 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=3540, Invalid=32370, Unknown=0, NotChecked=0, Total=35910 [2018-03-29 23:51:55,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-03-29 23:51:55,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 349. [2018-03-29 23:51:55,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2018-03-29 23:51:55,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 353 transitions. [2018-03-29 23:51:55,756 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 353 transitions. Word has length 304 [2018-03-29 23:51:55,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:51:55,757 INFO L459 AbstractCegarLoop]: Abstraction has 349 states and 353 transitions. [2018-03-29 23:51:55,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 128 states. [2018-03-29 23:51:55,758 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 353 transitions. [2018-03-29 23:51:55,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2018-03-29 23:51:55,760 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:51:55,760 INFO L355 BasicCegarLoop]: trace histogram [32, 32, 32, 31, 31, 31, 31, 31, 31, 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 23:51:55,760 INFO L408 AbstractCegarLoop]: === Iteration 19 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:51:55,760 INFO L82 PathProgramCache]: Analyzing trace with hash 786308497, now seen corresponding path program 5 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 23:51:55,770 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:51:55,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:51:55,844 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:51:55,859 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 23:51:55,859 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 23:51:55,875 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 23:51:55,875 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-29 23:51:58,103 INFO L134 CoverageAnalysis]: Checked inductivity of 4309 backedges. 0 proven. 4309 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:51:58,103 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:52:01,472 INFO L134 CoverageAnalysis]: Checked inductivity of 4309 backedges. 0 proven. 4309 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:52:01,493 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:52:01,493 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 68] total 135 [2018-03-29 23:52:01,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 136 states [2018-03-29 23:52:01,494 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 136 interpolants. [2018-03-29 23:52:01,494 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1423, Invalid=16937, Unknown=0, NotChecked=0, Total=18360 [2018-03-29 23:52:01,495 INFO L87 Difference]: Start difference. First operand 349 states and 353 transitions. Second operand 136 states. [2018-03-29 23:52:11,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:52:11,513 INFO L93 Difference]: Finished difference Result 358 states and 362 transitions. [2018-03-29 23:52:11,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2018-03-29 23:52:11,513 INFO L78 Accepts]: Start accepts. Automaton has 136 states. Word has length 305 [2018-03-29 23:52:11,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:52:11,515 INFO L225 Difference]: With dead ends: 358 [2018-03-29 23:52:11,515 INFO L226 Difference]: Without dead ends: 357 [2018-03-29 23:52:11,517 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 706 GetRequests, 475 SyntacticMatches, 0 SemanticMatches, 231 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11056 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=4956, Invalid=49100, Unknown=0, NotChecked=0, Total=54056 [2018-03-29 23:52:11,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2018-03-29 23:52:11,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 350. [2018-03-29 23:52:11,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2018-03-29 23:52:11,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 354 transitions. [2018-03-29 23:52:11,530 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 354 transitions. Word has length 305 [2018-03-29 23:52:11,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:52:11,530 INFO L459 AbstractCegarLoop]: Abstraction has 350 states and 354 transitions. [2018-03-29 23:52:11,531 INFO L460 AbstractCegarLoop]: Interpolant automaton has 136 states. [2018-03-29 23:52:11,531 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 354 transitions. [2018-03-29 23:52:11,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2018-03-29 23:52:11,533 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:52:11,533 INFO L355 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 32, 32, 32, 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 23:52:11,533 INFO L408 AbstractCegarLoop]: === Iteration 20 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:52:11,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1437564356, now seen corresponding path program 6 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 23:52:11,539 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:52:11,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:52:11,598 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:52:13,114 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 4560 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:52:13,114 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:52:15,424 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 4560 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:52:15,445 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 23:52:15,445 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [69, 69] imperfect sequences [] total 134 [2018-03-29 23:52:15,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 134 states [2018-03-29 23:52:15,446 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2018-03-29 23:52:15,447 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3467, Invalid=14355, Unknown=0, NotChecked=0, Total=17822 [2018-03-29 23:52:15,447 INFO L87 Difference]: Start difference. First operand 350 states and 354 transitions. Second operand 134 states. [2018-03-29 23:52:19,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:52:19,370 INFO L93 Difference]: Finished difference Result 683 states and 692 transitions. [2018-03-29 23:52:19,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2018-03-29 23:52:19,370 INFO L78 Accepts]: Start accepts. Automaton has 134 states. Word has length 313 [2018-03-29 23:52:19,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:52:19,372 INFO L225 Difference]: With dead ends: 683 [2018-03-29 23:52:19,372 INFO L226 Difference]: Without dead ends: 349 [2018-03-29 23:52:19,376 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 724 GetRequests, 491 SyntacticMatches, 2 SemanticMatches, 231 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12977 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=13102, Invalid=40954, Unknown=0, NotChecked=0, Total=54056 [2018-03-29 23:52:19,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2018-03-29 23:52:19,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 346. [2018-03-29 23:52:19,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2018-03-29 23:52:19,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 349 transitions. [2018-03-29 23:52:19,390 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 349 transitions. Word has length 313 [2018-03-29 23:52:19,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:52:19,390 INFO L459 AbstractCegarLoop]: Abstraction has 346 states and 349 transitions. [2018-03-29 23:52:19,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 134 states. [2018-03-29 23:52:19,390 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 349 transitions. [2018-03-29 23:52:19,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2018-03-29 23:52:19,392 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:52:19,393 INFO L355 BasicCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 31, 31, 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 23:52:19,393 INFO L408 AbstractCegarLoop]: === Iteration 21 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:52:19,393 INFO L82 PathProgramCache]: Analyzing trace with hash 349360819, now seen corresponding path program 5 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 23:52:19,403 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:52:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:52:19,472 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:52:20,815 INFO L134 CoverageAnalysis]: Checked inductivity of 4251 backedges. 4 proven. 4247 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:52:20,816 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:52:21,070 WARN L148 SmtUtils]: Spent 224ms on a formula simplification that was a NOOP. DAG size: 165 [2018-03-29 23:52:21,301 WARN L148 SmtUtils]: Spent 225ms on a formula simplification that was a NOOP. DAG size: 165 [2018-03-29 23:52:22,540 INFO L134 CoverageAnalysis]: Checked inductivity of 4251 backedges. 4 proven. 4247 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 23:52:22,561 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:52:22,561 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67] total 131 [2018-03-29 23:52:22,562 INFO L442 AbstractCegarLoop]: Interpolant automaton has 131 states [2018-03-29 23:52:22,562 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2018-03-29 23:52:22,564 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3396, Invalid=13634, Unknown=0, NotChecked=0, Total=17030 [2018-03-29 23:52:22,564 INFO L87 Difference]: Start difference. First operand 346 states and 349 transitions. Second operand 131 states. [2018-03-29 23:52:24,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:52:24,523 INFO L93 Difference]: Finished difference Result 679 states and 685 transitions. [2018-03-29 23:52:24,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2018-03-29 23:52:24,523 INFO L78 Accepts]: Start accepts. Automaton has 131 states. Word has length 316 [2018-03-29 23:52:24,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:52:24,525 INFO L225 Difference]: With dead ends: 679 [2018-03-29 23:52:24,525 INFO L226 Difference]: Without dead ends: 346 [2018-03-29 23:52:24,527 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 500 SyntacticMatches, 2 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14761 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=9634, Invalid=27808, Unknown=0, NotChecked=0, Total=37442 [2018-03-29 23:52:24,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2018-03-29 23:52:24,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2018-03-29 23:52:24,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2018-03-29 23:52:24,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 348 transitions. [2018-03-29 23:52:24,536 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 348 transitions. Word has length 316 [2018-03-29 23:52:24,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:52:24,536 INFO L459 AbstractCegarLoop]: Abstraction has 346 states and 348 transitions. [2018-03-29 23:52:24,536 INFO L460 AbstractCegarLoop]: Interpolant automaton has 131 states. [2018-03-29 23:52:24,536 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 348 transitions. [2018-03-29 23:52:24,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2018-03-29 23:52:24,537 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:52:24,538 INFO L355 BasicCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 32, 32, 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 23:52:24,538 INFO L408 AbstractCegarLoop]: === Iteration 22 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:52:24,538 INFO L82 PathProgramCache]: Analyzing trace with hash -171885888, now seen corresponding path program 6 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 23:52:24,550 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:52:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:52:24,609 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:52:24,680 INFO L134 CoverageAnalysis]: Checked inductivity of 4532 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4528 trivial. 0 not checked. [2018-03-29 23:52:24,681 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:52:24,735 INFO L134 CoverageAnalysis]: Checked inductivity of 4532 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4528 trivial. 0 not checked. [2018-03-29 23:52:24,757 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 23:52:24,757 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-03-29 23:52:24,758 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-29 23:52:24,758 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-29 23:52:24,758 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-03-29 23:52:24,758 INFO L87 Difference]: Start difference. First operand 346 states and 348 transitions. Second operand 9 states. [2018-03-29 23:52:24,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:52:24,822 INFO L93 Difference]: Finished difference Result 362 states and 364 transitions. [2018-03-29 23:52:24,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-03-29 23:52:24,822 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 325 [2018-03-29 23:52:24,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:52:24,824 INFO L225 Difference]: With dead ends: 362 [2018-03-29 23:52:24,824 INFO L226 Difference]: Without dead ends: 361 [2018-03-29 23:52:24,825 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 652 GetRequests, 641 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2018-03-29 23:52:24,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2018-03-29 23:52:24,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 343. [2018-03-29 23:52:24,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2018-03-29 23:52:24,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 345 transitions. [2018-03-29 23:52:24,834 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 345 transitions. Word has length 325 [2018-03-29 23:52:24,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:52:24,835 INFO L459 AbstractCegarLoop]: Abstraction has 343 states and 345 transitions. [2018-03-29 23:52:24,835 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-29 23:52:24,836 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 345 transitions. [2018-03-29 23:52:24,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2018-03-29 23:52:24,838 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:52:24,838 INFO L355 BasicCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 32, 32, 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] [2018-03-29 23:52:24,838 INFO L408 AbstractCegarLoop]: === Iteration 23 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:52:24,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1456966552, now seen corresponding path program 1 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 23:52:24,849 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:52:24,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:52:24,934 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:52:24,991 INFO L134 CoverageAnalysis]: Checked inductivity of 4530 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4528 trivial. 0 not checked. [2018-03-29 23:52:24,991 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:52:25,103 INFO L134 CoverageAnalysis]: Checked inductivity of 4530 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4528 trivial. 0 not checked. [2018-03-29 23:52:25,137 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:52:25,137 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-03-29 23:52:25,137 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-03-29 23:52:25,138 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-03-29 23:52:25,138 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-03-29 23:52:25,138 INFO L87 Difference]: Start difference. First operand 343 states and 345 transitions. Second operand 8 states. [2018-03-29 23:52:25,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:52:25,209 INFO L93 Difference]: Finished difference Result 395 states and 401 transitions. [2018-03-29 23:52:25,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-03-29 23:52:25,209 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 332 [2018-03-29 23:52:25,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:52:25,210 INFO L225 Difference]: With dead ends: 395 [2018-03-29 23:52:25,210 INFO L226 Difference]: Without dead ends: 375 [2018-03-29 23:52:25,211 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 667 GetRequests, 657 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2018-03-29 23:52:25,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2018-03-29 23:52:25,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 365. [2018-03-29 23:52:25,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2018-03-29 23:52:25,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 369 transitions. [2018-03-29 23:52:25,220 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 369 transitions. Word has length 332 [2018-03-29 23:52:25,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:52:25,220 INFO L459 AbstractCegarLoop]: Abstraction has 365 states and 369 transitions. [2018-03-29 23:52:25,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-03-29 23:52:25,221 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 369 transitions. [2018-03-29 23:52:25,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 951 [2018-03-29 23:52:25,228 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:52:25,229 INFO L355 BasicCegarLoop]: trace histogram [99, 96, 96, 96, 96, 96, 96, 96, 96, 4, 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 23:52:25,229 INFO L408 AbstractCegarLoop]: === Iteration 24 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:52:25,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1317791160, now seen corresponding path program 2 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 23:52:25,240 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:52:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:52:25,436 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:52:25,810 INFO L134 CoverageAnalysis]: Checked inductivity of 41685 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 41646 trivial. 0 not checked. [2018-03-29 23:52:25,811 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:52:26,196 INFO L134 CoverageAnalysis]: Checked inductivity of 41685 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 41646 trivial. 0 not checked. [2018-03-29 23:52:26,218 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:52:26,238 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2018-03-29 23:52:26,239 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-29 23:52:26,239 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-29 23:52:26,239 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2018-03-29 23:52:26,240 INFO L87 Difference]: Start difference. First operand 365 states and 369 transitions. Second operand 16 states. [2018-03-29 23:52:26,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:52:26,398 INFO L93 Difference]: Finished difference Result 439 states and 451 transitions. [2018-03-29 23:52:26,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-03-29 23:52:26,400 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 950 [2018-03-29 23:52:26,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:52:26,403 INFO L225 Difference]: With dead ends: 439 [2018-03-29 23:52:26,403 INFO L226 Difference]: Without dead ends: 419 [2018-03-29 23:52:26,404 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 1911 GetRequests, 1885 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 23:52:26,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2018-03-29 23:52:26,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 409. [2018-03-29 23:52:26,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2018-03-29 23:52:26,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 417 transitions. [2018-03-29 23:52:26,421 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 417 transitions. Word has length 950 [2018-03-29 23:52:26,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:52:26,421 INFO L459 AbstractCegarLoop]: Abstraction has 409 states and 417 transitions. [2018-03-29 23:52:26,421 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-29 23:52:26,421 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 417 transitions. [2018-03-29 23:52:26,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2187 [2018-03-29 23:52:26,444 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:52:26,445 INFO L355 BasicCegarLoop]: trace histogram [231, 224, 224, 224, 224, 224, 224, 224, 224, 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 23:52:26,445 INFO L408 AbstractCegarLoop]: === Iteration 25 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:52:26,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1671668216, now seen corresponding path program 3 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 23:52:26,451 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:52:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:52:26,977 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:52:28,521 INFO L134 CoverageAnalysis]: Checked inductivity of 228375 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 228130 trivial. 0 not checked. [2018-03-29 23:52:28,521 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:52:30,053 INFO L134 CoverageAnalysis]: Checked inductivity of 228375 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 228130 trivial. 0 not checked. [2018-03-29 23:52:30,077 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:52:30,077 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2018-03-29 23:52:30,079 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-03-29 23:52:30,079 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-03-29 23:52:30,079 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2018-03-29 23:52:30,079 INFO L87 Difference]: Start difference. First operand 409 states and 417 transitions. Second operand 32 states. [2018-03-29 23:52:30,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:52:30,926 INFO L93 Difference]: Finished difference Result 527 states and 551 transitions. [2018-03-29 23:52:30,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-03-29 23:52:30,926 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 2186 [2018-03-29 23:52:30,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:52:30,931 INFO L225 Difference]: With dead ends: 527 [2018-03-29 23:52:30,932 INFO L226 Difference]: Without dead ends: 507 [2018-03-29 23:52:30,933 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4399 GetRequests, 4341 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1155, Invalid=2385, Unknown=0, NotChecked=0, Total=3540 [2018-03-29 23:52:30,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2018-03-29 23:52:30,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 497. [2018-03-29 23:52:30,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2018-03-29 23:52:30,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 513 transitions. [2018-03-29 23:52:30,959 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 513 transitions. Word has length 2186 [2018-03-29 23:52:30,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:52:30,961 INFO L459 AbstractCegarLoop]: Abstraction has 497 states and 513 transitions. [2018-03-29 23:52:30,961 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-03-29 23:52:30,961 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 513 transitions. [2018-03-29 23:52:31,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4659 [2018-03-29 23:52:31,082 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:52:31,084 INFO L355 BasicCegarLoop]: trace histogram [495, 480, 480, 480, 480, 480, 480, 480, 480, 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 23:52:31,084 INFO L408 AbstractCegarLoop]: === Iteration 26 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:52:31,084 INFO L82 PathProgramCache]: Analyzing trace with hash 637060488, now seen corresponding path program 4 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 23:52:31,090 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:52:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:52:32,030 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:52:38,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1051275 backedges. 0 proven. 1185 refuted. 0 times theorem prover too weak. 1050090 trivial. 0 not checked. [2018-03-29 23:52:38,089 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 23:52:44,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1051275 backedges. 0 proven. 1185 refuted. 0 times theorem prover too weak. 1050090 trivial. 0 not checked. [2018-03-29 23:52:44,220 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 23:52:44,221 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 64 [2018-03-29 23:52:44,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-03-29 23:52:44,224 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-03-29 23:52:44,225 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1056, Invalid=2976, Unknown=0, NotChecked=0, Total=4032 [2018-03-29 23:52:44,225 INFO L87 Difference]: Start difference. First operand 497 states and 513 transitions. Second operand 64 states. [2018-03-29 23:52:45,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 23:52:45,461 INFO L93 Difference]: Finished difference Result 703 states and 751 transitions. [2018-03-29 23:52:45,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2018-03-29 23:52:45,461 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 4658 [2018-03-29 23:52:45,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 23:52:45,469 INFO L225 Difference]: With dead ends: 703 [2018-03-29 23:52:45,469 INFO L226 Difference]: Without dead ends: 683 [2018-03-29 23:52:45,471 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 9375 GetRequests, 9253 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 23:52:45,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2018-03-29 23:52:45,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 673. [2018-03-29 23:52:45,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 673 states. [2018-03-29 23:52:45,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 705 transitions. [2018-03-29 23:52:45,506 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 705 transitions. Word has length 4658 [2018-03-29 23:52:45,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 23:52:45,509 INFO L459 AbstractCegarLoop]: Abstraction has 673 states and 705 transitions. [2018-03-29 23:52:45,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-03-29 23:52:45,509 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 705 transitions. [2018-03-29 23:52:45,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9603 [2018-03-29 23:52:45,907 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 23:52:45,910 INFO L355 BasicCegarLoop]: trace histogram [1023, 992, 992, 992, 992, 992, 992, 992, 992, 32, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 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 23:52:45,910 INFO L408 AbstractCegarLoop]: === Iteration 27 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-29 23:52:45,911 INFO L82 PathProgramCache]: Analyzing trace with hash 815862920, now seen corresponding path program 5 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 23:52:45,922 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 23:52:47,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 23:52:47,632 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 23:53:11,520 INFO L134 CoverageAnalysis]: Checked inductivity of 4495155 backedges. 0 proven. 5177 refuted. 0 times theorem prover too weak. 4489978 trivial. 0 not checked. [2018-03-29 23:53:11,520 INFO L314 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown