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_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength5_true-valid-memsafety.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d4a2356 [2018-03-23 12:19:47,004 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-23 12:19:47,006 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-23 12:19:47,022 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-23 12:19:47,022 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-23 12:19:47,023 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-23 12:19:47,024 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-23 12:19:47,025 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-23 12:19:47,027 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-23 12:19:47,027 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-23 12:19:47,028 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-23 12:19:47,029 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-23 12:19:47,030 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-23 12:19:47,031 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-23 12:19:47,032 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-23 12:19:47,034 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-23 12:19:47,036 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-23 12:19:47,038 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-23 12:19:47,040 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-23 12:19:47,041 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-23 12:19:47,043 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-23 12:19:47,044 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-23 12:19:47,044 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-23 12:19:47,045 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-23 12:19:47,046 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-23 12:19:47,047 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-23 12:19:47,047 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-23 12:19:47,048 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-23 12:19:47,049 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-23 12:19:47,049 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-23 12:19:47,050 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-23 12:19:47,050 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-03-23 12:19:47,061 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-23 12:19:47,061 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-23 12:19:47,062 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-23 12:19:47,063 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-23 12:19:47,063 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-23 12:19:47,063 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-23 12:19:47,063 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-23 12:19:47,064 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-23 12:19:47,064 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-23 12:19:47,064 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-23 12:19:47,064 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-23 12:19:47,064 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-23 12:19:47,065 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-23 12:19:47,065 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-23 12:19:47,065 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-03-23 12:19:47,065 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-23 12:19:47,065 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-23 12:19:47,066 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-23 12:19:47,066 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-23 12:19:47,066 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-23 12:19:47,066 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-03-23 12:19:47,066 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-23 12:19:47,067 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-23 12:19:47,067 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-23 12:19:47,067 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-23 12:19:47,067 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-23 12:19:47,067 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-23 12:19:47,068 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-23 12:19:47,068 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-03-23 12:19:47,068 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-23 12:19:47,068 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-23 12:19:47,068 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-23 12:19:47,069 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-23 12:19:47,069 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-23 12:19:47,105 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-23 12:19:47,118 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-23 12:19:47,122 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-23 12:19:47,124 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-23 12:19:47,125 INFO L276 PluginConnector]: CDTParser initialized [2018-03-23 12:19:47,125 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength5_true-valid-memsafety.c [2018-03-23 12:19:47,452 INFO L228 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGab96764d0 [2018-03-23 12:19:47,568 INFO L291 CDTParser]: IsIndexed: true [2018-03-23 12:19:47,568 INFO L292 CDTParser]: Found 1 translation units. [2018-03-23 12:19:47,569 INFO L171 CDTParser]: Scanning ArraysOfVariableLength5_true-valid-memsafety.c [2018-03-23 12:19:47,570 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-23 12:19:47,570 INFO L215 ultiparseSymbolTable]: [2018-03-23 12:19:47,571 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-23 12:19:47,571 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo ('foo') in ArraysOfVariableLength5_true-valid-memsafety.c [2018-03-23 12:19:47,571 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysOfVariableLength5_true-valid-memsafety.c [2018-03-23 12:19:47,571 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-23 12:19:47,571 INFO L233 ultiparseSymbolTable]: [2018-03-23 12:19:47,586 INFO L334 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGab96764d0 [2018-03-23 12:19:47,590 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-23 12:19:47,593 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-03-23 12:19:47,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-23 12:19:47,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-23 12:19:47,598 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-23 12:19:47,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 12:19:47" (1/1) ... [2018-03-23 12:19:47,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c793bd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 12:19:47, skipping insertion in model container [2018-03-23 12:19:47,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 12:19:47" (1/1) ... [2018-03-23 12:19:47,617 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-23 12:19:47,630 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-23 12:19:47,760 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-23 12:19:47,782 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-23 12:19:47,786 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-03-23 12:19:47,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 12:19:47 WrapperNode [2018-03-23 12:19:47,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-23 12:19:47,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-23 12:19:47,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-23 12:19:47,794 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-23 12:19:47,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 12:19:47" (1/1) ... [2018-03-23 12:19:47,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 12:19:47" (1/1) ... [2018-03-23 12:19:47,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 12:19:47" (1/1) ... [2018-03-23 12:19:47,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 12:19:47" (1/1) ... [2018-03-23 12:19:47,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 12:19:47" (1/1) ... [2018-03-23 12:19:47,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 12:19:47" (1/1) ... [2018-03-23 12:19:47,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 12:19:47" (1/1) ... [2018-03-23 12:19:47,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-23 12:19:47,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-23 12:19:47,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-23 12:19:47,826 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-23 12:19:47,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 12:19:47" (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 [2018-03-23 12:19:47,883 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-23 12:19:47,884 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-23 12:19:47,884 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo [2018-03-23 12:19:47,884 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-23 12:19:47,884 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo [2018-03-23 12:19:47,884 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-23 12:19:47,884 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-23 12:19:47,885 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-23 12:19:47,885 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-23 12:19:47,885 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-23 12:19:47,885 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-23 12:19:47,885 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-23 12:19:47,885 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-23 12:19:48,134 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-23 12:19:48,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 12:19:48 BoogieIcfgContainer [2018-03-23 12:19:48,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-23 12:19:48,135 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-03-23 12:19:48,135 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-03-23 12:19:48,136 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-03-23 12:19:48,139 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 12:19:48" (1/1) ... [2018-03-23 12:19:48,148 INFO L112 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-03-23 12:19:48,149 INFO L113 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-03-23 12:19:48,163 INFO L255 apSepIcfgTransformer]: Heap separator: starting memloc-array-style preprocessing [2018-03-23 12:19:48,176 INFO L271 apSepIcfgTransformer]: finished MemlocArrayUpdater, created 0 location literals (each corresponds to one heap write) [2018-03-23 12:19:48,185 INFO L322 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-03-23 12:19:48,237 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-03-23 12:19:51,103 INFO L314 AbstractInterpreter]: Visited 73 different actions 343 times. Merged at 47 different actions 165 times. Never widened. Found 30 fixpoints after 12 different actions. Largest state had 21 variables. [2018-03-23 12:19:51,106 INFO L334 apSepIcfgTransformer]: finished equality analysis [2018-03-23 12:19:51,113 INFO L195 HeapSepPreAnalysis]: Number of read from array group [#memory_int] : 1 [2018-03-23 12:19:51,114 INFO L344 apSepIcfgTransformer]: Finished pre analysis before partitioning [2018-03-23 12:19:51,114 INFO L345 apSepIcfgTransformer]: array groups: Set: [#memory_int] [2018-03-23 12:19:51,114 INFO L347 apSepIcfgTransformer]: select infos: Set: ((select (select |v_#memory_int_1| v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base_2) (+ v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset_2 v___U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0_6)), at (SUMMARY for call #t~mem1 := read~int(~b.base, ~b.offset + ~i~0 * 1, 1); srcloc: L16')) [2018-03-23 12:19:51,117 INFO L311 HeapPartitionManager]: partitioning result: [2018-03-23 12:19:51,118 INFO L316 HeapPartitionManager]: location blocks for array group [#memory_int] [2018-03-23 12:19:51,118 INFO L325 HeapPartitionManager]: at dimension 0 [2018-03-23 12:19:51,118 INFO L326 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-03-23 12:19:51,118 INFO L327 HeapPartitionManager]: # location blocks :1 [2018-03-23 12:19:51,118 INFO L325 HeapPartitionManager]: at dimension 1 [2018-03-23 12:19:51,118 INFO L326 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-03-23 12:19:51,118 INFO L327 HeapPartitionManager]: # location blocks :1 [2018-03-23 12:19:51,119 INFO L86 ransitionTransformer]: executing heap partitioning transformation [2018-03-23 12:19:51,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.03 12:19:51 BasicIcfg [2018-03-23 12:19:51,133 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-03-23 12:19:51,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-23 12:19:51,135 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-23 12:19:51,138 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-23 12:19:51,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.03 12:19:47" (1/4) ... [2018-03-23 12:19:51,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f112f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 12:19:51, skipping insertion in model container [2018-03-23 12:19:51,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 12:19:47" (2/4) ... [2018-03-23 12:19:51,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f112f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 12:19:51, skipping insertion in model container [2018-03-23 12:19:51,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 12:19:48" (3/4) ... [2018-03-23 12:19:51,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f112f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.03 12:19:51, skipping insertion in model container [2018-03-23 12:19:51,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.03 12:19:51" (4/4) ... [2018-03-23 12:19:51,143 INFO L107 eAbstractionObserver]: Analyzing ICFG HeapSeparatedIcfg [2018-03-23 12:19:51,151 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-23 12:19:51,157 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-03-23 12:19:51,191 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-23 12:19:51,191 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-23 12:19:51,191 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-23 12:19:51,191 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-23 12:19:51,191 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-23 12:19:51,192 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-23 12:19:51,192 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-23 12:19:51,192 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-23 12:19:51,192 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-23 12:19:51,193 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-23 12:19:51,204 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-03-23 12:19:51,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-03-23 12:19:51,209 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 12:19:51,210 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 12:19:51,210 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-23 12:19:51,214 INFO L82 PathProgramCache]: Analyzing trace with hash -289603045, now seen corresponding path program 1 times [2018-03-23 12:19:51,216 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 12:19:51,216 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 12:19:51,256 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:51,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 12:19:51,257 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:51,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 12:19:51,296 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 12:19:51,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 12:19:51,365 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 12:19:51,365 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-03-23 12:19:51,367 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-03-23 12:19:51,378 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-03-23 12:19:51,379 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-23 12:19:51,381 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 3 states. [2018-03-23 12:19:51,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 12:19:51,459 INFO L93 Difference]: Finished difference Result 138 states and 165 transitions. [2018-03-23 12:19:51,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-23 12:19:51,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-03-23 12:19:51,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 12:19:51,473 INFO L225 Difference]: With dead ends: 138 [2018-03-23 12:19:51,473 INFO L226 Difference]: Without dead ends: 82 [2018-03-23 12:19:51,477 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-23 12:19:51,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-03-23 12:19:51,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 68. [2018-03-23 12:19:51,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-03-23 12:19:51,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 73 transitions. [2018-03-23 12:19:51,518 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 73 transitions. Word has length 12 [2018-03-23 12:19:51,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 12:19:51,518 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 73 transitions. [2018-03-23 12:19:51,518 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-03-23 12:19:51,518 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 73 transitions. [2018-03-23 12:19:51,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-03-23 12:19:51,519 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 12:19:51,519 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 12:19:51,519 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-23 12:19:51,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1129209722, now seen corresponding path program 1 times [2018-03-23 12:19:51,519 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 12:19:51,520 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 12:19:51,520 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:51,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 12:19:51,520 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 12:19:51,534 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 12:19:51,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 12:19:51,635 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 12:19:51,635 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-03-23 12:19:51,637 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-03-23 12:19:51,637 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-03-23 12:19:51,637 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-03-23 12:19:51,638 INFO L87 Difference]: Start difference. First operand 68 states and 73 transitions. Second operand 6 states. [2018-03-23 12:19:51,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 12:19:51,796 INFO L93 Difference]: Finished difference Result 144 states and 156 transitions. [2018-03-23 12:19:51,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-23 12:19:51,796 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-03-23 12:19:51,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 12:19:51,797 INFO L225 Difference]: With dead ends: 144 [2018-03-23 12:19:51,798 INFO L226 Difference]: Without dead ends: 92 [2018-03-23 12:19:51,799 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-03-23 12:19:51,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-03-23 12:19:51,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 79. [2018-03-23 12:19:51,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-03-23 12:19:51,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 85 transitions. [2018-03-23 12:19:51,808 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 85 transitions. Word has length 21 [2018-03-23 12:19:51,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 12:19:51,809 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 85 transitions. [2018-03-23 12:19:51,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-03-23 12:19:51,809 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 85 transitions. [2018-03-23 12:19:51,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-03-23 12:19:51,810 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 12:19:51,810 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 12:19:51,810 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-23 12:19:51,811 INFO L82 PathProgramCache]: Analyzing trace with hash 823290080, now seen corresponding path program 1 times [2018-03-23 12:19:51,811 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 12:19:51,811 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 12:19:51,812 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:51,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 12:19:51,812 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:51,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 12:19:51,825 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 12:19:51,874 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 12:19:51,875 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-03-23 12:19:51,875 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-03-23 12:19:51,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 12:19:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 12:19:51,913 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-23 12:19:51,966 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 12:19:51,996 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-03-23 12:19:51,996 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2018-03-23 12:19:51,997 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-03-23 12:19:51,997 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-03-23 12:19:51,997 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-03-23 12:19:51,997 INFO L87 Difference]: Start difference. First operand 79 states and 85 transitions. Second operand 8 states. [2018-03-23 12:19:52,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 12:19:52,152 INFO L93 Difference]: Finished difference Result 117 states and 124 transitions. [2018-03-23 12:19:52,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-03-23 12:19:52,153 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-03-23 12:19:52,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 12:19:52,154 INFO L225 Difference]: With dead ends: 117 [2018-03-23 12:19:52,154 INFO L226 Difference]: Without dead ends: 96 [2018-03-23 12:19:52,155 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2018-03-23 12:19:52,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-03-23 12:19:52,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 86. [2018-03-23 12:19:52,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-03-23 12:19:52,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 92 transitions. [2018-03-23 12:19:52,163 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 92 transitions. Word has length 23 [2018-03-23 12:19:52,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 12:19:52,164 INFO L459 AbstractCegarLoop]: Abstraction has 86 states and 92 transitions. [2018-03-23 12:19:52,164 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-03-23 12:19:52,164 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 92 transitions. [2018-03-23 12:19:52,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-03-23 12:19:52,165 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 12:19:52,165 INFO L353 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] [2018-03-23 12:19:52,166 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-23 12:19:52,166 INFO L82 PathProgramCache]: Analyzing trace with hash 271566421, now seen corresponding path program 1 times [2018-03-23 12:19:52,166 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 12:19:52,166 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 12:19:52,167 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:52,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 12:19:52,168 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 12:19:52,179 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 12:19:52,294 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 12:19:52,294 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-03-23 12:19:52,295 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-03-23 12:19:52,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 12:19:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 12:19:52,333 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-23 12:19:52,337 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-03-23 12:19:52,373 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-03-23 12:19:52,373 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2018-03-23 12:19:52,374 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-23 12:19:52,374 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-23 12:19:52,374 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-03-23 12:19:52,375 INFO L87 Difference]: Start difference. First operand 86 states and 92 transitions. Second operand 9 states. [2018-03-23 12:19:52,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 12:19:52,572 INFO L93 Difference]: Finished difference Result 149 states and 160 transitions. [2018-03-23 12:19:52,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-03-23 12:19:52,574 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2018-03-23 12:19:52,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 12:19:52,579 INFO L225 Difference]: With dead ends: 149 [2018-03-23 12:19:52,579 INFO L226 Difference]: Without dead ends: 148 [2018-03-23 12:19:52,579 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-03-23 12:19:52,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-03-23 12:19:52,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 89. [2018-03-23 12:19:52,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-03-23 12:19:52,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 96 transitions. [2018-03-23 12:19:52,590 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 96 transitions. Word has length 32 [2018-03-23 12:19:52,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 12:19:52,590 INFO L459 AbstractCegarLoop]: Abstraction has 89 states and 96 transitions. [2018-03-23 12:19:52,590 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-23 12:19:52,590 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 96 transitions. [2018-03-23 12:19:52,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-03-23 12:19:52,592 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 12:19:52,592 INFO L353 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] [2018-03-23 12:19:52,592 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-23 12:19:52,592 INFO L82 PathProgramCache]: Analyzing trace with hash -171375060, now seen corresponding path program 1 times [2018-03-23 12:19:52,592 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 12:19:52,592 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 12:19:52,593 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:52,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 12:19:52,593 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 12:19:52,603 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 12:19:52,665 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-03-23 12:19:52,665 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-03-23 12:19:52,665 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-03-23 12:19:52,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 12:19:52,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 12:19:52,693 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-23 12:19:52,718 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 [2018-03-23 12:19:52,719 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-23 12:19:52,721 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 12:19:52,721 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-23 12:19:52,729 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-03-23 12:19:52,750 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-23 12:19:52,750 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-03-23 12:19:52,750 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-03-23 12:19:52,751 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-03-23 12:19:52,751 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-03-23 12:19:52,751 INFO L87 Difference]: Start difference. First operand 89 states and 96 transitions. Second operand 6 states. [2018-03-23 12:19:52,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 12:19:52,805 INFO L93 Difference]: Finished difference Result 89 states and 96 transitions. [2018-03-23 12:19:52,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-23 12:19:52,807 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2018-03-23 12:19:52,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 12:19:52,808 INFO L225 Difference]: With dead ends: 89 [2018-03-23 12:19:52,808 INFO L226 Difference]: Without dead ends: 88 [2018-03-23 12:19:52,809 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-03-23 12:19:52,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-03-23 12:19:52,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2018-03-23 12:19:52,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-03-23 12:19:52,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 95 transitions. [2018-03-23 12:19:52,818 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 95 transitions. Word has length 33 [2018-03-23 12:19:52,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 12:19:52,818 INFO L459 AbstractCegarLoop]: Abstraction has 88 states and 95 transitions. [2018-03-23 12:19:52,818 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-03-23 12:19:52,818 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 95 transitions. [2018-03-23 12:19:52,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-03-23 12:19:52,819 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 12:19:52,820 INFO L353 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] [2018-03-23 12:19:52,820 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-23 12:19:52,820 INFO L82 PathProgramCache]: Analyzing trace with hash -171375058, now seen corresponding path program 1 times [2018-03-23 12:19:52,820 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 12:19:52,820 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 12:19:52,821 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:52,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 12:19:52,822 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 12:19:52,833 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 12:19:52,958 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-03-23 12:19:52,958 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-03-23 12:19:52,958 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-03-23 12:19:52,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 12:19:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 12:19:52,984 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-23 12:19:52,990 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 [2018-03-23 12:19:52,991 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-23 12:19:52,993 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 12:19:52,994 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-23 12:19:53,053 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-03-23 12:19:53,088 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-23 12:19:53,089 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-03-23 12:19:53,089 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-23 12:19:53,089 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-23 12:19:53,089 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-03-23 12:19:53,090 INFO L87 Difference]: Start difference. First operand 88 states and 95 transitions. Second operand 7 states. [2018-03-23 12:19:53,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 12:19:53,206 INFO L93 Difference]: Finished difference Result 97 states and 104 transitions. [2018-03-23 12:19:53,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-03-23 12:19:53,206 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-03-23 12:19:53,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 12:19:53,207 INFO L225 Difference]: With dead ends: 97 [2018-03-23 12:19:53,207 INFO L226 Difference]: Without dead ends: 96 [2018-03-23 12:19:53,208 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-03-23 12:19:53,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-03-23 12:19:53,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 89. [2018-03-23 12:19:53,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-03-23 12:19:53,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 96 transitions. [2018-03-23 12:19:53,216 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 96 transitions. Word has length 33 [2018-03-23 12:19:53,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 12:19:53,216 INFO L459 AbstractCegarLoop]: Abstraction has 89 states and 96 transitions. [2018-03-23 12:19:53,216 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-23 12:19:53,216 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 96 transitions. [2018-03-23 12:19:53,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-03-23 12:19:53,218 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 12:19:53,218 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 12:19:53,218 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-23 12:19:53,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1928557588, now seen corresponding path program 1 times [2018-03-23 12:19:53,218 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 12:19:53,219 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 12:19:53,219 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:53,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 12:19:53,220 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 12:19:53,230 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 12:19:53,334 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 12:19:53,334 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-03-23 12:19:53,334 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-03-23 12:19:53,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 12:19:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 12:19:53,352 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-23 12:19:53,431 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 12:19:53,452 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-23 12:19:53,452 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2018-03-23 12:19:53,452 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-03-23 12:19:53,452 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-03-23 12:19:53,453 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2018-03-23 12:19:53,453 INFO L87 Difference]: Start difference. First operand 89 states and 96 transitions. Second operand 15 states. [2018-03-23 12:19:53,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 12:19:53,646 INFO L93 Difference]: Finished difference Result 181 states and 197 transitions. [2018-03-23 12:19:53,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-03-23 12:19:53,646 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 41 [2018-03-23 12:19:53,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 12:19:53,647 INFO L225 Difference]: With dead ends: 181 [2018-03-23 12:19:53,647 INFO L226 Difference]: Without dead ends: 127 [2018-03-23 12:19:53,648 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2018-03-23 12:19:53,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-03-23 12:19:53,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 111. [2018-03-23 12:19:53,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-03-23 12:19:53,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 120 transitions. [2018-03-23 12:19:53,657 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 120 transitions. Word has length 41 [2018-03-23 12:19:53,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 12:19:53,658 INFO L459 AbstractCegarLoop]: Abstraction has 111 states and 120 transitions. [2018-03-23 12:19:53,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-03-23 12:19:53,658 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 120 transitions. [2018-03-23 12:19:53,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-03-23 12:19:53,659 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 12:19:53,660 INFO L353 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 12:19:53,660 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-23 12:19:53,660 INFO L82 PathProgramCache]: Analyzing trace with hash 853161830, now seen corresponding path program 1 times [2018-03-23 12:19:53,660 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 12:19:53,660 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 12:19:53,661 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:53,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 12:19:53,661 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:53,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 12:19:53,669 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 12:19:53,705 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 12:19:53,706 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-03-23 12:19:53,706 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-03-23 12:19:53,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 12:19:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 12:19:53,722 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-23 12:19:53,737 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 12:19:53,759 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-23 12:19:53,759 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-03-23 12:19:53,759 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-23 12:19:53,759 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-23 12:19:53,760 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-03-23 12:19:53,760 INFO L87 Difference]: Start difference. First operand 111 states and 120 transitions. Second operand 9 states. [2018-03-23 12:19:53,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 12:19:53,818 INFO L93 Difference]: Finished difference Result 155 states and 168 transitions. [2018-03-23 12:19:53,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-03-23 12:19:53,821 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2018-03-23 12:19:53,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 12:19:53,822 INFO L225 Difference]: With dead ends: 155 [2018-03-23 12:19:53,822 INFO L226 Difference]: Without dead ends: 135 [2018-03-23 12:19:53,822 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2018-03-23 12:19:53,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-03-23 12:19:53,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 119. [2018-03-23 12:19:53,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-03-23 12:19:53,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 128 transitions. [2018-03-23 12:19:53,833 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 128 transitions. Word has length 41 [2018-03-23 12:19:53,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 12:19:53,833 INFO L459 AbstractCegarLoop]: Abstraction has 119 states and 128 transitions. [2018-03-23 12:19:53,833 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-23 12:19:53,833 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 128 transitions. [2018-03-23 12:19:53,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-03-23 12:19:53,835 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 12:19:53,835 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 12:19:53,835 INFO L408 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-23 12:19:53,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1107304593, now seen corresponding path program 2 times [2018-03-23 12:19:53,836 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 12:19:53,836 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 12:19:53,837 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:53,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 12:19:53,837 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:53,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 12:19:53,847 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 12:19:53,912 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-03-23 12:19:53,912 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-03-23 12:19:53,912 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-03-23 12:19:53,918 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-03-23 12:19:53,931 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-03-23 12:19:53,931 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-03-23 12:19:53,934 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-23 12:19:54,021 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 12:19:54,042 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-23 12:19:54,042 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 12] total 14 [2018-03-23 12:19:54,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-03-23 12:19:54,042 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-03-23 12:19:54,043 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2018-03-23 12:19:54,043 INFO L87 Difference]: Start difference. First operand 119 states and 128 transitions. Second operand 15 states. [2018-03-23 12:19:54,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 12:19:54,319 INFO L93 Difference]: Finished difference Result 194 states and 209 transitions. [2018-03-23 12:19:54,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-03-23 12:19:54,319 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 52 [2018-03-23 12:19:54,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 12:19:54,320 INFO L225 Difference]: With dead ends: 194 [2018-03-23 12:19:54,321 INFO L226 Difference]: Without dead ends: 193 [2018-03-23 12:19:54,321 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=769, Unknown=0, NotChecked=0, Total=930 [2018-03-23 12:19:54,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2018-03-23 12:19:54,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 151. [2018-03-23 12:19:54,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-03-23 12:19:54,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 165 transitions. [2018-03-23 12:19:54,331 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 165 transitions. Word has length 52 [2018-03-23 12:19:54,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 12:19:54,331 INFO L459 AbstractCegarLoop]: Abstraction has 151 states and 165 transitions. [2018-03-23 12:19:54,331 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-03-23 12:19:54,331 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 165 transitions. [2018-03-23 12:19:54,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-03-23 12:19:54,332 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 12:19:54,333 INFO L353 BasicCegarLoop]: trace histogram [4, 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] [2018-03-23 12:19:54,333 INFO L408 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-23 12:19:54,333 INFO L82 PathProgramCache]: Analyzing trace with hash 2112266945, now seen corresponding path program 2 times [2018-03-23 12:19:54,333 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 12:19:54,333 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 12:19:54,334 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:54,334 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-03-23 12:19:54,334 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 12:19:54,341 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 12:19:54,414 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 12:19:54,414 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-03-23 12:19:54,414 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-03-23 12:19:54,424 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-03-23 12:19:54,434 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-03-23 12:19:54,434 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-03-23 12:19:54,436 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-23 12:19:54,465 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_~#mask~0.base| Int)) (and (= (store |c_old(#valid)| |main_~#mask~0.base| 0) |c_#valid|) (= (select |c_old(#valid)| |main_~#mask~0.base|) 0))) is different from true [2018-03-23 12:19:54,474 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-03-23 12:19:54,496 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-03-23 12:19:54,496 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2018-03-23 12:19:54,496 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-03-23 12:19:54,496 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-03-23 12:19:54,496 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=83, Unknown=1, NotChecked=18, Total=132 [2018-03-23 12:19:54,497 INFO L87 Difference]: Start difference. First operand 151 states and 165 transitions. Second operand 12 states. [2018-03-23 12:19:54,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 12:19:54,811 INFO L93 Difference]: Finished difference Result 194 states and 214 transitions. [2018-03-23 12:19:54,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-03-23 12:19:54,811 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 52 [2018-03-23 12:19:54,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 12:19:54,812 INFO L225 Difference]: With dead ends: 194 [2018-03-23 12:19:54,812 INFO L226 Difference]: Without dead ends: 162 [2018-03-23 12:19:54,813 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=144, Invalid=364, Unknown=2, NotChecked=42, Total=552 [2018-03-23 12:19:54,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-03-23 12:19:54,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 151. [2018-03-23 12:19:54,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-03-23 12:19:54,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 164 transitions. [2018-03-23 12:19:54,822 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 164 transitions. Word has length 52 [2018-03-23 12:19:54,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 12:19:54,822 INFO L459 AbstractCegarLoop]: Abstraction has 151 states and 164 transitions. [2018-03-23 12:19:54,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-03-23 12:19:54,822 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 164 transitions. [2018-03-23 12:19:54,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-03-23 12:19:54,823 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 12:19:54,823 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 12:19:54,823 INFO L408 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-23 12:19:54,824 INFO L82 PathProgramCache]: Analyzing trace with hash 33296468, now seen corresponding path program 1 times [2018-03-23 12:19:54,824 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 12:19:54,824 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 12:19:54,824 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:54,824 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-03-23 12:19:54,825 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:54,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 12:19:54,836 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 12:19:55,021 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-03-23 12:19:55,021 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-03-23 12:19:55,022 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-03-23 12:19:55,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 12:19:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 12:19:55,043 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-23 12:19:55,055 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 [2018-03-23 12:19:55,055 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-23 12:19:55,058 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-23 12:19:55,058 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-23 12:19:55,163 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-03-23 12:19:55,184 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-23 12:19:55,184 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-03-23 12:19:55,185 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-23 12:19:55,185 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-23 12:19:55,185 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-03-23 12:19:55,185 INFO L87 Difference]: Start difference. First operand 151 states and 164 transitions. Second operand 9 states. [2018-03-23 12:19:55,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 12:19:55,379 INFO L93 Difference]: Finished difference Result 185 states and 200 transitions. [2018-03-23 12:19:55,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-03-23 12:19:55,380 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 53 [2018-03-23 12:19:55,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 12:19:55,381 INFO L225 Difference]: With dead ends: 185 [2018-03-23 12:19:55,381 INFO L226 Difference]: Without dead ends: 184 [2018-03-23 12:19:55,382 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 8 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2018-03-23 12:19:55,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-03-23 12:19:55,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 161. [2018-03-23 12:19:55,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-03-23 12:19:55,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 175 transitions. [2018-03-23 12:19:55,395 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 175 transitions. Word has length 53 [2018-03-23 12:19:55,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 12:19:55,396 INFO L459 AbstractCegarLoop]: Abstraction has 161 states and 175 transitions. [2018-03-23 12:19:55,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-23 12:19:55,396 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 175 transitions. [2018-03-23 12:19:55,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-03-23 12:19:55,397 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 12:19:55,397 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 12:19:55,397 INFO L408 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-23 12:19:55,397 INFO L82 PathProgramCache]: Analyzing trace with hash 167383273, now seen corresponding path program 2 times [2018-03-23 12:19:55,398 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 12:19:55,398 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 12:19:55,399 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:55,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 12:19:55,399 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 12:19:55,411 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 12:19:55,664 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 5 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-03-23 12:19:55,665 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-03-23 12:19:55,665 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-03-23 12:19:55,672 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-03-23 12:19:55,686 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-03-23 12:19:55,686 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-03-23 12:19:55,688 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-23 12:19:55,836 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 17 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 12:19:55,857 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-23 12:19:55,858 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 26 [2018-03-23 12:19:55,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-03-23 12:19:55,858 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-03-23 12:19:55,859 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2018-03-23 12:19:55,859 INFO L87 Difference]: Start difference. First operand 161 states and 175 transitions. Second operand 26 states. [2018-03-23 12:19:56,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 12:19:56,951 INFO L93 Difference]: Finished difference Result 254 states and 276 transitions. [2018-03-23 12:19:56,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-03-23 12:19:56,952 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 62 [2018-03-23 12:19:56,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 12:19:56,953 INFO L225 Difference]: With dead ends: 254 [2018-03-23 12:19:56,953 INFO L226 Difference]: Without dead ends: 179 [2018-03-23 12:19:56,954 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 741 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=442, Invalid=2750, Unknown=0, NotChecked=0, Total=3192 [2018-03-23 12:19:56,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-03-23 12:19:56,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 144. [2018-03-23 12:19:56,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-03-23 12:19:56,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 154 transitions. [2018-03-23 12:19:56,965 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 154 transitions. Word has length 62 [2018-03-23 12:19:56,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 12:19:56,965 INFO L459 AbstractCegarLoop]: Abstraction has 144 states and 154 transitions. [2018-03-23 12:19:56,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-03-23 12:19:56,965 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 154 transitions. [2018-03-23 12:19:56,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-03-23 12:19:56,966 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 12:19:56,966 INFO L353 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 12:19:56,966 INFO L408 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-23 12:19:56,966 INFO L82 PathProgramCache]: Analyzing trace with hash 296475714, now seen corresponding path program 1 times [2018-03-23 12:19:56,966 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 12:19:56,966 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 12:19:56,967 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:56,967 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-03-23 12:19:56,967 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 12:19:56,973 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 12:19:57,039 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-03-23 12:19:57,039 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-03-23 12:19:57,039 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-03-23 12:19:57,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 12:19:57,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 12:19:57,060 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-23 12:19:57,123 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-03-23 12:19:57,144 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-23 12:19:57,145 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11] total 15 [2018-03-23 12:19:57,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-03-23 12:19:57,145 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-03-23 12:19:57,145 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2018-03-23 12:19:57,146 INFO L87 Difference]: Start difference. First operand 144 states and 154 transitions. Second operand 15 states. [2018-03-23 12:19:57,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 12:19:57,361 INFO L93 Difference]: Finished difference Result 185 states and 201 transitions. [2018-03-23 12:19:57,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-03-23 12:19:57,362 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 65 [2018-03-23 12:19:57,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 12:19:57,363 INFO L225 Difference]: With dead ends: 185 [2018-03-23 12:19:57,363 INFO L226 Difference]: Without dead ends: 173 [2018-03-23 12:19:57,363 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2018-03-23 12:19:57,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2018-03-23 12:19:57,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 162. [2018-03-23 12:19:57,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2018-03-23 12:19:57,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 174 transitions. [2018-03-23 12:19:57,377 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 174 transitions. Word has length 65 [2018-03-23 12:19:57,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 12:19:57,377 INFO L459 AbstractCegarLoop]: Abstraction has 162 states and 174 transitions. [2018-03-23 12:19:57,377 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-03-23 12:19:57,377 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 174 transitions. [2018-03-23 12:19:57,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-03-23 12:19:57,379 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 12:19:57,379 INFO L353 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 12:19:57,380 INFO L408 AbstractCegarLoop]: === Iteration 14 === [__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation, __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation, mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX]=== [2018-03-23 12:19:57,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1585457444, now seen corresponding path program 2 times [2018-03-23 12:19:57,380 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 12:19:57,380 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 12:19:57,381 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:57,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 12:19:57,381 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 12:19:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 12:19:57,391 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 12:19:57,473 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-03-23 12:19:57,474 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-03-23 12:19:57,474 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-03-23 12:19:57,482 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-03-23 12:19:57,499 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-03-23 12:19:57,499 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-03-23 12:19:57,502 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-23 12:19:57,618 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-03-23 12:19:57,651 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-23 12:19:57,651 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 13] total 19 [2018-03-23 12:19:57,651 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-03-23 12:19:57,652 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-03-23 12:19:57,652 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2018-03-23 12:19:57,652 INFO L87 Difference]: Start difference. First operand 162 states and 174 transitions. Second operand 19 states. [2018-03-23 12:19:57,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 12:19:57,984 INFO L93 Difference]: Finished difference Result 202 states and 220 transitions. [2018-03-23 12:19:57,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-03-23 12:19:57,984 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 83 [2018-03-23 12:19:57,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 12:19:57,985 INFO L225 Difference]: With dead ends: 202 [2018-03-23 12:19:57,985 INFO L226 Difference]: Without dead ends: 0 [2018-03-23 12:19:57,986 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2018-03-23 12:19:57,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-03-23 12:19:57,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-03-23 12:19:57,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-03-23 12:19:57,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-03-23 12:19:57,986 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 83 [2018-03-23 12:19:57,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 12:19:57,987 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-03-23 12:19:57,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-03-23 12:19:57,987 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-03-23 12:19:57,987 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-03-23 12:19:57,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-03-23 12:19:58,504 WARN L151 SmtUtils]: Spent 261ms on a formula simplification. DAG size of input: 53 DAG size of output 32 [2018-03-23 12:19:58,740 WARN L151 SmtUtils]: Spent 234ms on a formula simplification. DAG size of input: 62 DAG size of output 52 [2018-03-23 12:19:58,827 INFO L416 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-03-23 12:19:58,827 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-03-23 12:19:58,827 INFO L412 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-03-23 12:19:58,827 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-03-23 12:19:58,827 INFO L416 ceAbstractionStarter]: For program point L15''''(line 15) no Hoare annotation was computed. [2018-03-23 12:19:58,827 INFO L416 ceAbstractionStarter]: For program point L15'''''(line 15) no Hoare annotation was computed. [2018-03-23 12:19:58,827 INFO L412 ceAbstractionStarter]: At program point L15''''''(lines 15 17) the Hoare annotation is: (let ((.cse1 (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0 0)) (.cse0 (not (= (select |#length| |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.base|) 32))) (.cse2 (not (= 0 |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.offset|))) (.cse3 (not (= (select |#valid| |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~b.base|) 1)))) (and (or .cse0 (and .cse1 (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~size 0)) (not (= 0 |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~size|)) .cse2 .cse3) (or .cse0 (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~size 2) .cse2 .cse3 (< 2 |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~size|)) (or .cse0 (and (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0 1) (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~size 1)) (< 1 |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~size|) .cse2 .cse3) (let ((.cse4 (<= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~size 31)) (.cse5 (= 1 (select |#valid| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base))) (.cse6 (= __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.offset 0)) (.cse7 (select |#length| __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~b.base))) (or (and .cse4 .cse5 .cse6 .cse1 (= 32 .cse7)) .cse0 (< 31 |__U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_#in~size|) .cse2 .cse3 (and (<= 1 __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__foo_~i~0) .cse4 .cse5 .cse6 (= .cse7 32)))))) [2018-03-23 12:19:58,827 INFO L416 ceAbstractionStarter]: For program point __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr2RequiresViolation(line 16) no Hoare annotation was computed. [2018-03-23 12:19:58,828 INFO L416 ceAbstractionStarter]: For program point L15'''''''(lines 15 17) no Hoare annotation was computed. [2018-03-23 12:19:58,828 INFO L416 ceAbstractionStarter]: For program point L12(lines 12 19) no Hoare annotation was computed. [2018-03-23 12:19:58,828 INFO L416 ceAbstractionStarter]: For program point L15'''(lines 15 17) no Hoare annotation was computed. [2018-03-23 12:19:58,828 INFO L416 ceAbstractionStarter]: For program point L16'''(line 16) no Hoare annotation was computed. [2018-03-23 12:19:58,828 INFO L416 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-03-23 12:19:58,828 INFO L416 ceAbstractionStarter]: For program point __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooEXIT(lines 12 19) no Hoare annotation was computed. [2018-03-23 12:19:58,828 INFO L416 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-03-23 12:19:58,828 INFO L416 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-03-23 12:19:58,828 INFO L416 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-03-23 12:19:58,828 INFO L416 ceAbstractionStarter]: For program point L15'(lines 15 17) no Hoare annotation was computed. [2018-03-23 12:19:58,828 INFO L416 ceAbstractionStarter]: For program point __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooFINAL(lines 12 19) no Hoare annotation was computed. [2018-03-23 12:19:58,828 INFO L416 ceAbstractionStarter]: For program point L16'(line 16) no Hoare annotation was computed. [2018-03-23 12:19:58,828 INFO L419 ceAbstractionStarter]: At program point __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooENTRY(lines 12 19) the Hoare annotation is: true [2018-03-23 12:19:58,829 INFO L416 ceAbstractionStarter]: For program point L16''(line 16) no Hoare annotation was computed. [2018-03-23 12:19:58,829 INFO L416 ceAbstractionStarter]: For program point __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr0AssertViolationARRAY_INDEX(line 16) no Hoare annotation was computed. [2018-03-23 12:19:58,829 INFO L416 ceAbstractionStarter]: For program point __U_MULTI_fArraysOfVariableLength__true_valid_memsafety_c__fooErr1RequiresViolation(line 16) no Hoare annotation was computed. [2018-03-23 12:19:58,829 INFO L419 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-03-23 12:19:58,829 INFO L419 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-03-23 12:19:58,829 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-03-23 12:19:58,829 INFO L416 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-03-23 12:19:58,829 INFO L416 ceAbstractionStarter]: For program point L25'''''(line 25) no Hoare annotation was computed. [2018-03-23 12:19:58,829 INFO L416 ceAbstractionStarter]: For program point mainErr0AssertViolationARRAY_INDEX(line 27) no Hoare annotation was computed. [2018-03-23 12:19:58,829 INFO L416 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-03-23 12:19:58,829 INFO L416 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-03-23 12:19:58,829 INFO L416 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-03-23 12:19:58,829 INFO L416 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-03-23 12:19:58,830 INFO L416 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2018-03-23 12:19:58,830 INFO L416 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2018-03-23 12:19:58,830 INFO L416 ceAbstractionStarter]: For program point L25'''(lines 25 28) no Hoare annotation was computed. [2018-03-23 12:19:58,830 INFO L416 ceAbstractionStarter]: For program point L29(lines 29 33) no Hoare annotation was computed. [2018-03-23 12:19:58,830 INFO L416 ceAbstractionStarter]: For program point L24''''(line 24) no Hoare annotation was computed. [2018-03-23 12:19:58,830 INFO L416 ceAbstractionStarter]: For program point L27''''(line 27) no Hoare annotation was computed. [2018-03-23 12:19:58,830 INFO L412 ceAbstractionStarter]: At program point L25''''''(lines 25 28) the Hoare annotation is: (let ((.cse0 (= |#valid| (store |old(#valid)| |main_~#mask~0.base| 1))) (.cse1 (= 32 (select |#length| |main_~#mask~0.base|))) (.cse2 (= 0 |main_~#mask~0.offset|)) (.cse3 (= (select |old(#valid)| |main_~#mask~0.base|) 0))) (or (and .cse0 .cse1 .cse2 (= main_~i~1 0) .cse3) (and (= 1 (select |#valid| main_~c~0.base)) .cse0 .cse1 .cse2 (<= 1 main_~i~1) (= 32 (select |#length| main_~c~0.base)) (= 0 main_~c~0.offset) .cse3))) [2018-03-23 12:19:58,830 INFO L412 ceAbstractionStarter]: At program point L27'(line 27) the Hoare annotation is: (let ((.cse3 (= 0 |main_~#mask~0.offset|)) (.cse4 (= 32 (select |#length| main_~c~0.base))) (.cse0 (= 1 (select |#valid| main_~c~0.base))) (.cse2 (= 32 (select |#length| |main_~#mask~0.base|))) (.cse1 (= |#valid| (store |old(#valid)| |main_~#mask~0.base| 1))) (.cse6 (= (select |old(#valid)| |main_~#mask~0.base|) 0)) (.cse5 (= 0 main_~c~0.offset))) (or (and .cse0 (= 0 main_~i~1) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse3 .cse4 (and (and .cse0 .cse2 (<= main_~i~1 31) (<= 1 main_~i~1)) .cse1 .cse6) .cse5))) [2018-03-23 12:19:58,830 INFO L416 ceAbstractionStarter]: For program point L25'(lines 25 28) no Hoare annotation was computed. [2018-03-23 12:19:58,830 INFO L416 ceAbstractionStarter]: For program point L27'''(line 27) no Hoare annotation was computed. [2018-03-23 12:19:58,830 INFO L416 ceAbstractionStarter]: For program point L24'''''(line 24) no Hoare annotation was computed. [2018-03-23 12:19:58,831 INFO L416 ceAbstractionStarter]: For program point L29'''(line 29) no Hoare annotation was computed. [2018-03-23 12:19:58,831 INFO L416 ceAbstractionStarter]: For program point L29''''''(lines 29 33) no Hoare annotation was computed. [2018-03-23 12:19:58,831 INFO L416 ceAbstractionStarter]: For program point L25''''(line 25) no Hoare annotation was computed. [2018-03-23 12:19:58,831 INFO L416 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2018-03-23 12:19:58,831 INFO L416 ceAbstractionStarter]: For program point mainFINAL(lines 21 35) no Hoare annotation was computed. [2018-03-23 12:19:58,831 INFO L416 ceAbstractionStarter]: For program point L24''(line 24) no Hoare annotation was computed. [2018-03-23 12:19:58,831 INFO L416 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-03-23 12:19:58,831 INFO L416 ceAbstractionStarter]: For program point mainEXIT(lines 21 35) no Hoare annotation was computed. [2018-03-23 12:19:58,831 INFO L416 ceAbstractionStarter]: For program point mainErr2EnsuresViolationMEMORY_LEAK(lines 21 35) no Hoare annotation was computed. [2018-03-23 12:19:58,831 INFO L412 ceAbstractionStarter]: At program point mainENTRY(lines 21 35) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-03-23 12:19:58,831 INFO L416 ceAbstractionStarter]: For program point L24'''(line 24) no Hoare annotation was computed. [2018-03-23 12:19:58,831 INFO L416 ceAbstractionStarter]: For program point L29''''(line 29) no Hoare annotation was computed. [2018-03-23 12:19:58,831 INFO L416 ceAbstractionStarter]: For program point mainErr1AssertViolationARRAY_INDEX(line 30) no Hoare annotation was computed. [2018-03-23 12:19:58,832 INFO L416 ceAbstractionStarter]: For program point L29''(lines 29 33) no Hoare annotation was computed. [2018-03-23 12:19:58,832 INFO L416 ceAbstractionStarter]: For program point L27''(line 27) no Hoare annotation was computed. [2018-03-23 12:19:58,832 INFO L416 ceAbstractionStarter]: For program point L25'''''''(lines 25 28) no Hoare annotation was computed. [2018-03-23 12:19:58,832 INFO L412 ceAbstractionStarter]: At program point L29'''''(lines 29 33) the Hoare annotation is: (let ((.cse0 (= 1 (select |#valid| main_~c~0.base))) (.cse1 (= |#valid| (store |old(#valid)| |main_~#mask~0.base| 1))) (.cse2 (= 32 (select |#length| |main_~#mask~0.base|))) (.cse3 (= 0 |main_~#mask~0.offset|)) (.cse4 (= 32 (select |#length| main_~c~0.base))) (.cse5 (= 0 main_~c~0.offset)) (.cse6 (= (select |old(#valid)| |main_~#mask~0.base|) 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 1 main_~i~1) .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= main_~i~1 0) .cse5 .cse6))) [2018-03-23 12:19:58,832 INFO L416 ceAbstractionStarter]: For program point L24'(line 24) no Hoare annotation was computed. [2018-03-23 12:19:58,832 INFO L416 ceAbstractionStarter]: For program point L30'(lines 30 32) no Hoare annotation was computed. [2018-03-23 12:19:58,836 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,837 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,837 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,841 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,841 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,841 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,845 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,846 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,846 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,846 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,847 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,847 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,850 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,850 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,850 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,851 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,851 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,851 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,853 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,853 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,854 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,854 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,855 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,856 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,856 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,856 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.03 12:19:58 BasicIcfg [2018-03-23 12:19:58,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-23 12:19:58,860 INFO L168 Benchmark]: Toolchain (without parser) took 11268.69 ms. Allocated memory was 308.8 MB in the beginning and 807.9 MB in the end (delta: 499.1 MB). Free memory was 252.7 MB in the beginning and 346.1 MB in the end (delta: -93.4 MB). Peak memory consumption was 405.7 MB. Max. memory is 5.3 GB. [2018-03-23 12:19:58,861 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 308.8 MB. Free memory is still 271.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-23 12:19:58,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.44 ms. Allocated memory is still 308.8 MB. Free memory was 250.7 MB in the beginning and 242.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 5.3 GB. [2018-03-23 12:19:58,861 INFO L168 Benchmark]: Boogie Preprocessor took 31.79 ms. Allocated memory is still 308.8 MB. Free memory was 242.7 MB in the beginning and 240.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-03-23 12:19:58,861 INFO L168 Benchmark]: RCFGBuilder took 308.77 ms. Allocated memory was 308.8 MB in the beginning and 469.8 MB in the end (delta: 161.0 MB). Free memory was 240.7 MB in the beginning and 435.8 MB in the end (delta: -195.1 MB). Peak memory consumption was 24.6 MB. Max. memory is 5.3 GB. [2018-03-23 12:19:58,862 INFO L168 Benchmark]: IcfgTransformer took 2998.43 ms. Allocated memory was 469.8 MB in the beginning and 689.4 MB in the end (delta: 219.7 MB). Free memory was 435.8 MB in the beginning and 615.9 MB in the end (delta: -180.0 MB). Peak memory consumption was 39.7 MB. Max. memory is 5.3 GB. [2018-03-23 12:19:58,862 INFO L168 Benchmark]: TraceAbstraction took 7724.43 ms. Allocated memory was 689.4 MB in the beginning and 807.9 MB in the end (delta: 118.5 MB). Free memory was 615.9 MB in the beginning and 346.1 MB in the end (delta: 269.8 MB). Peak memory consumption was 388.2 MB. Max. memory is 5.3 GB. [2018-03-23 12:19:58,864 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 308.8 MB. Free memory is still 271.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 199.44 ms. Allocated memory is still 308.8 MB. Free memory was 250.7 MB in the beginning and 242.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 31.79 ms. Allocated memory is still 308.8 MB. Free memory was 242.7 MB in the beginning and 240.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 308.77 ms. Allocated memory was 308.8 MB in the beginning and 469.8 MB in the end (delta: 161.0 MB). Free memory was 240.7 MB in the beginning and 435.8 MB in the end (delta: -195.1 MB). Peak memory consumption was 24.6 MB. Max. memory is 5.3 GB. * IcfgTransformer took 2998.43 ms. Allocated memory was 469.8 MB in the beginning and 689.4 MB in the end (delta: 219.7 MB). Free memory was 435.8 MB in the beginning and 615.9 MB in the end (delta: -180.0 MB). Peak memory consumption was 39.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 7724.43 ms. Allocated memory was 689.4 MB in the beginning and 807.9 MB in the end (delta: 118.5 MB). Free memory was 615.9 MB in the beginning and 346.1 MB in the end (delta: 269.8 MB). Peak memory consumption was 388.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 62 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 280 LocStat_NO_SUPPORTING_DISEQUALITIES : 110 LocStat_NO_DISJUNCTIONS : -124 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 82 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 62 TransStat_NO_SUPPORTING_DISEQUALITIES : 7 TransStat_NO_DISJUNCTIONS : 83 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.014253 RENAME_VARIABLES(MILLISECONDS) : 0.187406 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.000943 PROJECTAWAY(MILLISECONDS) : 0.107354 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.075973 DISJOIN(MILLISECONDS) : 0.165780 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.205809 ADD_EQUALITY(MILLISECONDS) : 0.099224 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.058336 #CONJOIN_DISJUNCTIVE : 459 #RENAME_VARIABLES : 973 #UNFREEZE : 0 #CONJOIN : 567 #PROJECTAWAY : 603 #ADD_WEAK_EQUALITY : 7 #DISJOIN : 97 #RENAME_VARIABLES_DISJUNCTIVE : 968 #ADD_EQUALITY : 62 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 4 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: HeapSeparatorStatistics #COUNT_NEW_ARRAY_VARS_[#memory_int] : 1 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_0 : 1 COUNT_BLOCKS_for_[#memory_int]_at_dim_0 : 1 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_1 : 1 COUNT_BLOCKS_for_[#memory_int]_at_dim_1 : 1 COUNT_ARRAY_READS for [#memory_int] : 1 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: array index is always in bounds For all program executions holds that array index is always in bounds at this location - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 16]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 30]: array index is always in bounds For all program executions holds that array index is always in bounds at this location - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 27]: array index is always in bounds For all program executions holds that array index is always in bounds at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant [2018-03-23 12:19:58,874 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,874 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,875 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,876 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,876 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,876 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: ((((\valid == \old(\valid)[mask := 1] && 32 == unknown-#length-unknown[mask]) && 0 == mask) && i == 0) && \old(\valid)[mask] == 0) || (((((((1 == \valid[c] && \valid == \old(\valid)[mask := 1]) && 32 == unknown-#length-unknown[mask]) && 0 == mask) && 1 <= i) && 32 == unknown-#length-unknown[c]) && 0 == c) && \old(\valid)[mask] == 0) - InvariantResult [Line: 15]: Loop Invariant [2018-03-23 12:19:58,879 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,879 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,879 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,879 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,880 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,880 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,882 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,883 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,883 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,883 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,883 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,883 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: ((((((!(unknown-#length-unknown[b] == 32) || (i == 0 && size == 0)) || !(0 == \old(size))) || !(0 == b)) || !(\valid[b] == 1)) && ((((!(unknown-#length-unknown[b] == 32) || size <= 2) || !(0 == b)) || !(\valid[b] == 1)) || 2 < \old(size))) && ((((!(unknown-#length-unknown[b] == 32) || (i <= 1 && size <= 1)) || 1 < \old(size)) || !(0 == b)) || !(\valid[b] == 1))) && (((((((((size <= 31 && 1 == \valid[b]) && b == 0) && i == 0) && 32 == unknown-#length-unknown[b]) || !(unknown-#length-unknown[b] == 32)) || 31 < \old(size)) || !(0 == b)) || !(\valid[b] == 1)) || ((((1 <= i && size <= 31) && 1 == \valid[b]) && b == 0) && unknown-#length-unknown[b] == 32)) - InvariantResult [Line: 29]: Loop Invariant [2018-03-23 12:19:58,885 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,885 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,885 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,886 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,887 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,887 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,888 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-03-23 12:19:58,888 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: (((((((1 == \valid[c] && \valid == \old(\valid)[mask := 1]) && 32 == unknown-#length-unknown[mask]) && 0 == mask) && 1 <= i) && 32 == unknown-#length-unknown[c]) && 0 == c) && \old(\valid)[mask] == 0) || (((((((1 == \valid[c] && \valid == \old(\valid)[mask := 1]) && 32 == unknown-#length-unknown[mask]) && 0 == mask) && 32 == unknown-#length-unknown[c]) && i == 0) && 0 == c) && \old(\valid)[mask] == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 64 locations, 6 error locations. SAFE Result, 7.6s OverallTime, 14 OverallIterations, 6 TraceHistogramMax, 3.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 759 SDtfs, 1312 SDslu, 4208 SDs, 0 SdLazy, 2544 SolverSat, 191 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 776 GetRequests, 510 SyntacticMatches, 16 SemanticMatches, 250 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1387 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 257 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 29 PreInvPairs, 52 NumberOfFragments, 362 HoareAnnotationTreeSize, 29 FomulaSimplifications, 1209 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 1655 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 1173 NumberOfCodeBlocks, 1140 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 1147 ConstructedInterpolants, 2 QuantifiedInterpolants, 248165 SizeOfPredicates, 66 NumberOfNonLiveVariables, 983 ConjunctsInSsa, 124 ConjunctsInUnsatCore, 26 InterpolantComputations, 5 PerfectInterpolantSequences, 372/756 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength5_true-valid-memsafety.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-Benchmark-0-2018-03-23_12-19-58-893.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength5_true-valid-memsafety.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-VPDomainBenchmark-0-2018-03-23_12-19-58-893.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength5_true-valid-memsafety.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-BenchmarkWithCounters-0-2018-03-23_12-19-58-893.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength5_true-valid-memsafety.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-HeapSeparatorBenchmark-0-2018-03-23_12-19-58-893.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength5_true-valid-memsafety.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-TraceAbstractionBenchmarks-0-2018-03-23_12-19-58-893.csv Received shutdown request...