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/array-memsafety/cstrchr_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cceb4a [2018-01-30 00:46:35,415 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-30 00:46:35,416 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-30 00:46:35,428 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-30 00:46:35,429 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-30 00:46:35,430 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-30 00:46:35,431 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-30 00:46:35,433 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-30 00:46:35,435 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-30 00:46:35,436 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-30 00:46:35,437 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-30 00:46:35,437 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-30 00:46:35,438 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-30 00:46:35,439 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-30 00:46:35,440 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-30 00:46:35,443 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-30 00:46:35,445 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-30 00:46:35,447 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-30 00:46:35,448 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-30 00:46:35,449 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-30 00:46:35,451 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-30 00:46:35,452 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-30 00:46:35,452 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-30 00:46:35,453 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-30 00:46:35,454 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-30 00:46:35,455 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-30 00:46:35,455 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-30 00:46:35,456 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-30 00:46:35,456 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-30 00:46:35,456 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-30 00:46:35,457 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-30 00:46:35,457 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 [2018-01-30 00:46:35,467 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-30 00:46:35,467 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-30 00:46:35,468 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-30 00:46:35,468 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-30 00:46:35,469 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-30 00:46:35,469 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-30 00:46:35,469 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-30 00:46:35,470 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-30 00:46:35,470 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-30 00:46:35,470 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-30 00:46:35,470 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-30 00:46:35,470 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-30 00:46:35,471 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-30 00:46:35,471 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-30 00:46:35,471 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-30 00:46:35,471 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-30 00:46:35,471 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-30 00:46:35,472 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-30 00:46:35,472 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-30 00:46:35,472 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-30 00:46:35,472 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-30 00:46:35,472 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-30 00:46:35,473 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-30 00:46:35,473 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-30 00:46:35,473 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-30 00:46:35,473 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-30 00:46:35,473 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-30 00:46:35,474 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-30 00:46:35,474 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-30 00:46:35,474 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-30 00:46:35,474 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-30 00:46:35,474 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-30 00:46:35,475 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-30 00:46:35,476 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-30 00:46:35,522 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-30 00:46:35,535 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-30 00:46:35,538 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-30 00:46:35,540 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-30 00:46:35,541 INFO L276 PluginConnector]: CDTParser initialized [2018-01-30 00:46:35,541 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrchr_unsafe_false-valid-deref.i [2018-01-30 00:46:35,726 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-30 00:46:35,730 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-01-30 00:46:35,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-30 00:46:35,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-30 00:46:35,735 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-30 00:46:35,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 12:46:35" (1/1) ... [2018-01-30 00:46:35,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@250a961a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:46:35, skipping insertion in model container [2018-01-30 00:46:35,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 12:46:35" (1/1) ... [2018-01-30 00:46:35,751 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 00:46:35,789 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 00:46:35,900 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 00:46:35,914 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 00:46:35,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:46:35 WrapperNode [2018-01-30 00:46:35,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-30 00:46:35,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-30 00:46:35,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-30 00:46:35,922 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-30 00:46:35,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:46:35" (1/1) ... [2018-01-30 00:46:35,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:46:35" (1/1) ... [2018-01-30 00:46:35,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:46:35" (1/1) ... [2018-01-30 00:46:35,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:46:35" (1/1) ... [2018-01-30 00:46:35,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:46:35" (1/1) ... [2018-01-30 00:46:35,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:46:35" (1/1) ... [2018-01-30 00:46:35,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:46:35" (1/1) ... [2018-01-30 00:46:35,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-30 00:46:35,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-30 00:46:35,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-30 00:46:35,958 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-30 00:46:35,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:46:35" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-30 00:46:36,004 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-30 00:46:36,004 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-30 00:46:36,004 INFO L136 BoogieDeclarations]: Found implementation of procedure build_nondet_String [2018-01-30 00:46:36,004 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrchr [2018-01-30 00:46:36,004 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-30 00:46:36,004 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-30 00:46:36,004 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-30 00:46:36,005 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-30 00:46:36,005 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-30 00:46:36,005 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-30 00:46:36,005 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-30 00:46:36,005 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-30 00:46:36,005 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-30 00:46:36,005 INFO L128 BoogieDeclarations]: Found specification of procedure build_nondet_String [2018-01-30 00:46:36,005 INFO L128 BoogieDeclarations]: Found specification of procedure cstrchr [2018-01-30 00:46:36,005 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-30 00:46:36,005 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-30 00:46:36,006 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-30 00:46:36,257 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-30 00:46:36,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:46:36 BoogieIcfgContainer [2018-01-30 00:46:36,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-30 00:46:36,258 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-01-30 00:46:36,258 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-01-30 00:46:36,259 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-01-30 00:46:36,262 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:46:36" (1/1) ... [2018-01-30 00:46:36,268 INFO L103 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-01-30 00:46:36,269 INFO L104 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-01-30 00:46:36,269 INFO L150 apSepIcfgTransformer]: starting freeze-var-style preprocessing [2018-01-30 00:46:36,305 INFO L162 apSepIcfgTransformer]: finished StoreIndexFreezer, created 5 freeze vars and freeze var literals (each corresponds to one heap write) [2018-01-30 00:46:36,334 INFO L221 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-01-30 00:46:36,400 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-30 00:46:40,135 INFO L311 AbstractInterpreter]: Visited 81 different actions 196 times. Merged at 51 different actions 99 times. Never widened. Found 13 fixpoints after 9 different actions. Largest state had 41 variables. [2018-01-30 00:46:40,138 INFO L229 apSepIcfgTransformer]: finished equality analysis [2018-01-30 00:46:40,153 INFO L244 HeapSepPreAnalysis]: Number of read from array group [#memory_int] : 5 [2018-01-30 00:46:40,154 INFO L241 apSepIcfgTransformer]: Finished pre analysis before partitioning [2018-01-30 00:46:40,154 INFO L242 apSepIcfgTransformer]: array groups: Set: [#memory_int] [2018-01-30 00:46:40,154 INFO L244 apSepIcfgTransformer]: select infos: Set: ((select (select |v_#memory_int_8| |v_main_#t~ret11.base_2|) |v_main_#t~ret11.offset_2|), at (SUMMARY for call #t~mem12 := read~int(#t~ret11.base, #t~ret11.offset, 1); srcloc: L557'')) ((select (select |v_#memory_int_4| v_cstrchr_~s.base_5) v_cstrchr_~s.offset_4), at (SUMMARY for call #t~mem4 := read~int(~s.base, ~s.offset, 1); srcloc: L551''')) ((select (select |v_#memory_int_3| v_cstrchr_~s.base_2) v_cstrchr_~s.offset_2), at (SUMMARY for call #t~mem3 := read~int(~s.base, ~s.offset, 1); srcloc: L551)) ((select (select |v_#memory_int_5| v_cstrchr_~s.base_10) v_cstrchr_~s.offset_8), at (SUMMARY for call #t~mem7 := read~int(~s.base, ~s.offset, 1); srcloc: L551''''''''''''''')) ((select |v_#memory_int_2| v_build_nondet_String_~nondetString~4.base_2), at (SUMMARY for call write~int(0, ~nondetString~4.base, ~nondetString~4.offset + (~length~4 - 1) * 1, 1); srcloc: L546)) [2018-01-30 00:46:40,163 INFO L547 PartitionManager]: partitioning result: [2018-01-30 00:46:40,163 INFO L552 PartitionManager]: location blocks for array group [#memory_int] [2018-01-30 00:46:40,163 INFO L561 PartitionManager]: at dimension 0 [2018-01-30 00:46:40,163 INFO L562 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-01-30 00:46:40,164 INFO L563 PartitionManager]: # location blocks :2 [2018-01-30 00:46:40,164 INFO L561 PartitionManager]: at dimension 1 [2018-01-30 00:46:40,164 INFO L562 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-01-30 00:46:40,164 INFO L563 PartitionManager]: # location blocks :1 [2018-01-30 00:46:40,165 INFO L86 ransitionTransformer]: executing heap partitioning transformation [2018-01-30 00:46:40,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 30.01 12:46:40 BasicIcfg [2018-01-30 00:46:40,189 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-01-30 00:46:40,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-30 00:46:40,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-30 00:46:40,194 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-30 00:46:40,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 12:46:35" (1/4) ... [2018-01-30 00:46:40,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bff473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 12:46:40, skipping insertion in model container [2018-01-30 00:46:40,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:46:35" (2/4) ... [2018-01-30 00:46:40,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bff473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 12:46:40, skipping insertion in model container [2018-01-30 00:46:40,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:46:36" (3/4) ... [2018-01-30 00:46:40,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bff473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 12:46:40, skipping insertion in model container [2018-01-30 00:46:40,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 30.01 12:46:40" (4/4) ... [2018-01-30 00:46:40,199 INFO L107 eAbstractionObserver]: Analyzing ICFG HeapSeparatedIcfg [2018-01-30 00:46:40,210 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-30 00:46:40,218 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-01-30 00:46:40,322 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-30 00:46:40,323 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-30 00:46:40,323 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-30 00:46:40,323 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-30 00:46:40,323 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-30 00:46:40,323 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-30 00:46:40,323 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-30 00:46:40,324 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-30 00:46:40,324 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-30 00:46:40,339 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2018-01-30 00:46:40,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-30 00:46:40,347 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:46:40,348 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:46:40,348 INFO L371 AbstractCegarLoop]: === Iteration 1 === [build_nondet_StringErr0RequiresViolation, build_nondet_StringErr1RequiresViolation, cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-30 00:46:40,353 INFO L82 PathProgramCache]: Analyzing trace with hash 761768349, now seen corresponding path program 1 times [2018-01-30 00:46:40,355 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:46:40,356 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:46:40,418 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:46:40,418 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:46:40,418 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:46:40,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-30 00:46:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-30 00:46:40,492 INFO L409 BasicCegarLoop]: Counterexample might be feasible [2018-01-30 00:46:40,496 INFO L84 mationBacktranslator]: Skipped ATE [325] [325] ULTIMATE.startENTRY-->L1: Formula: true InVars {} OutVars{#NULL.offset=|v_#NULL.offset_2|, #NULL.base=|v_#NULL.base_2|, #valid=|v_#valid_22|} AuxVars[] AssignedVars[#valid, #NULL.offset, #NULL.base] [2018-01-30 00:46:40,496 INFO L84 mationBacktranslator]: Skipped ATE [331] [331] L1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-01-30 00:46:40,497 INFO L84 mationBacktranslator]: Skipped ATE [337] [337] mainENTRY-->L556: Formula: true InVars {} OutVars{#memory_int=|v_#memory_int_6|, #length=|v_#length_11|, main_#t~ret9.base=|v_main_#t~ret9.base_1|, main_#t~ret9.offset=|v_main_#t~ret9.offset_1|, #valid=|v_#valid_11|} AuxVars[] AssignedVars[#valid, #memory_int, #length, main_#t~ret9.base, main_#t~ret9.offset] [2018-01-30 00:46:40,497 INFO L84 mationBacktranslator]: Skipped ATE [343] [343] L556-->L556': Formula: (and (= v_main_~s~7.offset_1 |v_main_#t~ret9.offset_2|) (= v_main_~s~7.base_1 |v_main_#t~ret9.base_2|)) InVars {main_#t~ret9.base=|v_main_#t~ret9.base_2|, main_#t~ret9.offset=|v_main_#t~ret9.offset_2|} OutVars{main_~s~7.base=v_main_~s~7.base_1, main_~s~7.offset=v_main_~s~7.offset_1, main_#t~ret9.base=|v_main_#t~ret9.base_2|, main_#t~ret9.offset=|v_main_#t~ret9.offset_2|} AuxVars[] AssignedVars[main_~s~7.base, main_~s~7.offset] [2018-01-30 00:46:40,497 INFO L84 mationBacktranslator]: Skipped ATE [349] [349] L556'-->L557: Formula: true InVars {} OutVars{main_#t~ret9.base=|v_main_#t~ret9.base_3|, main_#t~ret9.offset=|v_main_#t~ret9.offset_3|} AuxVars[] AssignedVars[main_#t~ret9.base, main_#t~ret9.offset] [2018-01-30 00:46:40,497 INFO L84 mationBacktranslator]: Skipped ATE [353] [353] L557-->L557': Formula: (and (<= |v_main_#t~nondet10_1| 2147483647) (<= 0 (+ |v_main_#t~nondet10_1| 2147483648))) InVars {main_#t~nondet10=|v_main_#t~nondet10_1|} OutVars{main_#t~nondet10=|v_main_#t~nondet10_1|} AuxVars[] AssignedVars[] [2018-01-30 00:46:40,497 INFO L84 mationBacktranslator]: Skipped ATE [357] [357] L557'-->L557'': Formula: true InVars {} OutVars{main_#t~ret11.base=|v_main_#t~ret11.base_1|, main_#t~ret11.offset=|v_main_#t~ret11.offset_1|} AuxVars[] AssignedVars[main_#t~ret11.base, main_#t~ret11.offset] [2018-01-30 00:46:40,498 INFO L84 mationBacktranslator]: Skipped ATE [369] [369] L557''-->mainErr1RequiresViolation: Formula: (or (not (<= 0 |v_main_#t~ret11.offset_3|)) (not (<= (+ |v_main_#t~ret11.offset_3| 1) (select |v_#length_14| |v_main_#t~ret11.base_4|)))) InVars {main_#t~ret11.base=|v_main_#t~ret11.base_4|, main_#t~ret11.offset=|v_main_#t~ret11.offset_3|, #length=|v_#length_14|} OutVars{main_#t~ret11.base=|v_main_#t~ret11.base_4|, main_#t~ret11.offset=|v_main_#t~ret11.offset_3|, #length=|v_#length_14|} AuxVars[] AssignedVars[] [2018-01-30 00:46:40,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 12:46:40 BasicIcfg [2018-01-30 00:46:40,505 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-30 00:46:40,506 INFO L168 Benchmark]: Toolchain (without parser) took 4779.90 ms. Allocated memory was 307.2 MB in the beginning and 655.4 MB in the end (delta: 348.1 MB). Free memory was 267.1 MB in the beginning and 625.4 MB in the end (delta: -358.3 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 00:46:40,507 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 307.2 MB. Free memory is still 273.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 00:46:40,507 INFO L168 Benchmark]: CACSL2BoogieTranslator took 190.81 ms. Allocated memory is still 307.2 MB. Free memory was 266.1 MB in the beginning and 255.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-01-30 00:46:40,508 INFO L168 Benchmark]: Boogie Preprocessor took 36.32 ms. Allocated memory is still 307.2 MB. Free memory was 255.9 MB in the beginning and 253.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 5.3 GB. [2018-01-30 00:46:40,508 INFO L168 Benchmark]: RCFGBuilder took 299.62 ms. Allocated memory is still 307.2 MB. Free memory was 253.9 MB in the beginning and 233.9 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 5.3 GB. [2018-01-30 00:46:40,508 INFO L168 Benchmark]: IcfgTransformer took 3931.14 ms. Allocated memory was 307.2 MB in the beginning and 564.7 MB in the end (delta: 257.4 MB). Free memory was 233.9 MB in the beginning and 213.8 MB in the end (delta: 20.1 MB). Peak memory consumption was 277.5 MB. Max. memory is 5.3 GB. [2018-01-30 00:46:40,509 INFO L168 Benchmark]: TraceAbstraction took 314.97 ms. Allocated memory was 564.7 MB in the beginning and 655.4 MB in the end (delta: 90.7 MB). Free memory was 213.8 MB in the beginning and 625.4 MB in the end (delta: -411.6 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 00:46:40,511 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 307.2 MB. Free memory is still 273.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 190.81 ms. Allocated memory is still 307.2 MB. Free memory was 266.1 MB in the beginning and 255.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 36.32 ms. Allocated memory is still 307.2 MB. Free memory was 255.9 MB in the beginning and 253.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 5.3 GB. * RCFGBuilder took 299.62 ms. Allocated memory is still 307.2 MB. Free memory was 253.9 MB in the beginning and 233.9 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 5.3 GB. * IcfgTransformer took 3931.14 ms. Allocated memory was 307.2 MB in the beginning and 564.7 MB in the end (delta: 257.4 MB). Free memory was 233.9 MB in the beginning and 213.8 MB in the end (delta: 20.1 MB). Peak memory consumption was 277.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 314.97 ms. Allocated memory was 564.7 MB in the beginning and 655.4 MB in the end (delta: 90.7 MB). Free memory was 213.8 MB in the beginning and 625.4 MB in the end (delta: -411.6 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 69 LocStat_MAX_WEQGRAPH_SIZE : 4 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 737 LocStat_NO_SUPPORTING_DISEQUALITIES : 52 LocStat_NO_DISJUNCTIONS : -138 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 93 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 145 TransStat_NO_SUPPORTING_DISEQUALITIES : 16 TransStat_NO_DISJUNCTIONS : 102 TransStat_MAX_NO_DISJUNCTIONS : 4 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.686206 RENAME_VARIABLES(MILLISECONDS) : 0.036606 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.416384 PROJECTAWAY(MILLISECONDS) : 0.622191 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.080776 DISJOIN(MILLISECONDS) : 0.511910 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.061606 ADD_EQUALITY(MILLISECONDS) : 0.015976 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.013824 #CONJOIN_DISJUNCTIVE : 310 #RENAME_VARIABLES : 640 #UNFREEZE : 0 #CONJOIN : 505 #PROJECTAWAY : 457 #ADD_WEAK_EQUALITY : 6 #DISJOIN : 40 #RENAME_VARIABLES_DISJUNCTIVE : 609 #ADD_EQUALITY : 135 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 14 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: HeapSeparatorStatistics #COUNT_NEW_ARRAY_VARS_[#memory_int] : 2 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_0 : 2 COUNT_BLOCKS_for_[#memory_int]_at_dim_0 : 2 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] : 5 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 73 locations, 13 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=0, 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrchr_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-Benchmark-0-2018-01-30_00-46-40-522.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrchr_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-VPDomainBenchmark-0-2018-01-30_00-46-40-522.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrchr_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-BenchmarkWithCounters-0-2018-01-30_00-46-40-522.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrchr_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-HeapSeparatorBenchmark-0-2018-01-30_00-46-40-522.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrchr_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-30_00-46-40-522.csv Received shutdown request...