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/count_down_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cceb4a [2018-01-30 00:45:38,196 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-30 00:45:38,198 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-30 00:45:38,212 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-30 00:45:38,213 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-30 00:45:38,214 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-30 00:45:38,215 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-30 00:45:38,216 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-30 00:45:38,219 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-30 00:45:38,219 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-30 00:45:38,220 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-30 00:45:38,220 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-30 00:45:38,221 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-30 00:45:38,222 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-30 00:45:38,222 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-30 00:45:38,225 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-30 00:45:38,227 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-30 00:45:38,229 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-30 00:45:38,230 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-30 00:45:38,231 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-30 00:45:38,234 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-30 00:45:38,238 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-30 00:45:38,239 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-30 00:45:38,239 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 00:45:38,249 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-30 00:45:38,249 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-30 00:45:38,250 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-30 00:45:38,250 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-30 00:45:38,251 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-30 00:45:38,251 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-30 00:45:38,251 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-30 00:45:38,252 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-30 00:45:38,252 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-30 00:45:38,252 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-30 00:45:38,252 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-30 00:45:38,253 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-30 00:45:38,253 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-30 00:45:38,253 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-30 00:45:38,253 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-30 00:45:38,253 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-30 00:45:38,254 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-30 00:45:38,254 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-30 00:45:38,254 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-30 00:45:38,254 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-30 00:45:38,254 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-30 00:45:38,255 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-30 00:45:38,255 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-30 00:45:38,255 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-30 00:45:38,255 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-30 00:45:38,255 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-30 00:45:38,256 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-30 00:45:38,256 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-30 00:45:38,256 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-30 00:45:38,256 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-30 00:45:38,256 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-30 00:45:38,257 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-30 00:45:38,258 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-30 00:45:38,258 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-30 00:45:38,292 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-30 00:45:38,305 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-30 00:45:38,308 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-30 00:45:38,310 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-30 00:45:38,310 INFO L276 PluginConnector]: CDTParser initialized [2018-01-30 00:45:38,311 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/count_down_unsafe_false-valid-deref.i [2018-01-30 00:45:38,446 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-30 00:45:38,450 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-01-30 00:45:38,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-30 00:45:38,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-30 00:45:38,457 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-30 00:45:38,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 12:45:38" (1/1) ... [2018-01-30 00:45:38,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67a116ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:45:38, skipping insertion in model container [2018-01-30 00:45:38,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 12:45:38" (1/1) ... [2018-01-30 00:45:38,478 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 00:45:38,518 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 00:45:38,635 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 00:45:38,651 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 00:45:38,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:45:38 WrapperNode [2018-01-30 00:45:38,658 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-30 00:45:38,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-30 00:45:38,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-30 00:45:38,659 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-30 00:45:38,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:45:38" (1/1) ... [2018-01-30 00:45:38,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:45:38" (1/1) ... [2018-01-30 00:45:38,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:45:38" (1/1) ... [2018-01-30 00:45:38,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:45:38" (1/1) ... [2018-01-30 00:45:38,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:45:38" (1/1) ... [2018-01-30 00:45:38,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:45:38" (1/1) ... [2018-01-30 00:45:38,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:45:38" (1/1) ... [2018-01-30 00:45:38,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-30 00:45:38,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-30 00:45:38,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-30 00:45:38,698 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-30 00:45:38,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:45:38" (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 00:45:38,753 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-30 00:45:38,753 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-30 00:45:38,753 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-30 00:45:38,753 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-30 00:45:38,753 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-30 00:45:38,753 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-30 00:45:38,753 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-30 00:45:38,754 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-30 00:45:38,754 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-30 00:45:38,754 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-30 00:45:38,754 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-30 00:45:38,754 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-30 00:45:39,007 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-30 00:45:39,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:45:39 BoogieIcfgContainer [2018-01-30 00:45:39,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-30 00:45:39,008 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-01-30 00:45:39,008 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-01-30 00:45:39,009 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-01-30 00:45:39,011 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:45:39" (1/1) ... [2018-01-30 00:45:39,019 INFO L103 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-01-30 00:45:39,019 INFO L104 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-01-30 00:45:39,019 INFO L150 apSepIcfgTransformer]: starting freeze-var-style preprocessing [2018-01-30 00:45:39,059 INFO L162 apSepIcfgTransformer]: finished StoreIndexFreezer, created 8 freeze vars and freeze var literals (each corresponds to one heap write) [2018-01-30 00:45:39,089 INFO L221 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-01-30 00:45:39,151 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-30 00:46:32,964 INFO L311 AbstractInterpreter]: Visited 71 different actions 569 times. Merged at 44 different actions 365 times. Widened at 4 different actions 20 times. Found 30 fixpoints after 12 different actions. Largest state had 50 variables. [2018-01-30 00:46:32,967 INFO L229 apSepIcfgTransformer]: finished equality analysis [2018-01-30 00:46:32,976 INFO L244 HeapSepPreAnalysis]: Number of read from array group [#memory_int] : 4 [2018-01-30 00:46:32,977 INFO L241 apSepIcfgTransformer]: Finished pre analysis before partitioning [2018-01-30 00:46:32,977 INFO L242 apSepIcfgTransformer]: array groups: Set: [#memory_int] [2018-01-30 00:46:32,977 INFO L244 apSepIcfgTransformer]: select infos: Set: ((select (select |v_#memory_int_6| v_main_~arr~2.base_10) (+ (* 4 v_main_~j~2_7) v_main_~arr~2.offset_8)), at (SUMMARY for call #t~mem7 := read~int(~arr~2.base, ~arr~2.offset + ~j~2 * 4, 4); srcloc: L556)) ((select |v_#memory_int_4| v_main_~arr~2.base_4), at (SUMMARY for call write~int(~val~2, ~arr~2.base, ~arr~2.offset + ~i~2 * 4, 4); srcloc: L549'')) ((select (select |v_#memory_int_5| v_main_~arr~2.base_7) (+ (* 4 v_main_~j~2_5) v_main_~arr~2.offset_6)), at (SUMMARY for call #t~mem6 := read~int(~arr~2.base, ~arr~2.offset + ~j~2 * 4, 4); srcloc: L555)) ((select |v_#memory_int_8| v_main_~arr~2.base_13), at (SUMMARY for call write~int(#t~post8 - 1, ~arr~2.base, ~arr~2.offset + ~j~2 * 4, 4); srcloc: L556'')) [2018-01-30 00:46:32,985 INFO L547 PartitionManager]: partitioning result: [2018-01-30 00:46:32,985 INFO L552 PartitionManager]: location blocks for array group [#memory_int] [2018-01-30 00:46:32,985 INFO L561 PartitionManager]: at dimension 0 [2018-01-30 00:46:32,986 INFO L562 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-01-30 00:46:32,986 INFO L563 PartitionManager]: # location blocks :1 [2018-01-30 00:46:32,986 INFO L561 PartitionManager]: at dimension 1 [2018-01-30 00:46:32,986 INFO L562 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-01-30 00:46:32,986 INFO L563 PartitionManager]: # location blocks :1 [2018-01-30 00:46:32,987 INFO L86 ransitionTransformer]: executing heap partitioning transformation [2018-01-30 00:46:33,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 30.01 12:46:33 BasicIcfg [2018-01-30 00:46:33,001 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-01-30 00:46:33,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-30 00:46:33,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-30 00:46:33,004 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-30 00:46:33,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 12:45:38" (1/4) ... [2018-01-30 00:46:33,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613019be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 12:46:33, skipping insertion in model container [2018-01-30 00:46:33,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:45:38" (2/4) ... [2018-01-30 00:46:33,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613019be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 12:46:33, skipping insertion in model container [2018-01-30 00:46:33,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:45:39" (3/4) ... [2018-01-30 00:46:33,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613019be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 12:46:33, skipping insertion in model container [2018-01-30 00:46:33,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 30.01 12:46:33" (4/4) ... [2018-01-30 00:46:33,008 INFO L107 eAbstractionObserver]: Analyzing ICFG HeapSeparatedIcfg [2018-01-30 00:46:33,062 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-30 00:46:33,069 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-01-30 00:46:33,099 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-30 00:46:33,099 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-30 00:46:33,099 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-30 00:46:33,099 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-30 00:46:33,099 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-30 00:46:33,099 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-30 00:46:33,100 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-30 00:46:33,100 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-30 00:46:33,100 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-30 00:46:33,110 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-01-30 00:46:33,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-30 00:46:33,115 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:46:33,116 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:46:33,116 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-01-30 00:46:33,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1887340579, now seen corresponding path program 1 times [2018-01-30 00:46:33,121 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:46:33,121 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:46:33,160 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:46:33,161 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:46:33,161 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:46:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:46:33,204 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:46:33,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:46:33,276 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:46:33,276 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-30 00:46:33,278 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-30 00:46:33,287 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-30 00:46:33,288 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-30 00:46:33,290 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 4 states. [2018-01-30 00:46:33,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:46:33,361 INFO L93 Difference]: Finished difference Result 94 states and 107 transitions. [2018-01-30 00:46:33,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-30 00:46:33,363 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-30 00:46:33,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:46:33,374 INFO L225 Difference]: With dead ends: 94 [2018-01-30 00:46:33,375 INFO L226 Difference]: Without dead ends: 58 [2018-01-30 00:46:33,378 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-30 00:46:33,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-01-30 00:46:33,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-01-30 00:46:33,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-01-30 00:46:33,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2018-01-30 00:46:33,414 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 16 [2018-01-30 00:46:33,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:46:33,415 INFO L432 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2018-01-30 00:46:33,415 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-30 00:46:33,415 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2018-01-30 00:46:33,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-30 00:46:33,415 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:46:33,416 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:46:33,416 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-01-30 00:46:33,416 INFO L82 PathProgramCache]: Analyzing trace with hash -375684485, now seen corresponding path program 1 times [2018-01-30 00:46:33,416 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:46:33,416 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:46:33,417 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:46:33,417 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:46:33,417 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:46:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:46:33,426 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:46:33,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:46:33,475 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:46:33,475 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-30 00:46:33,477 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-30 00:46:33,477 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-30 00:46:33,477 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-30 00:46:33,477 INFO L87 Difference]: Start difference. First operand 58 states and 63 transitions. Second operand 4 states. [2018-01-30 00:46:33,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:46:33,584 INFO L93 Difference]: Finished difference Result 58 states and 63 transitions. [2018-01-30 00:46:33,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-30 00:46:33,585 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-01-30 00:46:33,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:46:33,586 INFO L225 Difference]: With dead ends: 58 [2018-01-30 00:46:33,586 INFO L226 Difference]: Without dead ends: 54 [2018-01-30 00:46:33,587 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-30 00:46:33,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-01-30 00:46:33,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-01-30 00:46:33,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-01-30 00:46:33,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2018-01-30 00:46:33,594 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 20 [2018-01-30 00:46:33,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:46:33,594 INFO L432 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2018-01-30 00:46:33,595 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-30 00:46:33,595 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2018-01-30 00:46:33,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-30 00:46:33,596 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:46:33,596 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:46:33,596 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-01-30 00:46:33,596 INFO L82 PathProgramCache]: Analyzing trace with hash -375684483, now seen corresponding path program 1 times [2018-01-30 00:46:33,596 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:46:33,596 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:46:33,598 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:46:33,598 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:46:33,598 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:46:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-30 00:46:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-30 00:46:33,637 INFO L409 BasicCegarLoop]: Counterexample might be feasible [2018-01-30 00:46:33,639 INFO L84 mationBacktranslator]: Skipped ATE [297] [297] ULTIMATE.startENTRY-->L1: Formula: true InVars {} OutVars{#NULL.offset=|v_#NULL.offset_2|, #NULL.base=|v_#NULL.base_2|, #valid=|v_#valid_3|} AuxVars[] AssignedVars[#valid, #NULL.offset, #NULL.base] [2018-01-30 00:46:33,639 INFO L84 mationBacktranslator]: Skipped ATE [303] [303] L1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-01-30 00:46:33,640 INFO L84 mationBacktranslator]: Skipped ATE [309] [309] mainENTRY-->L541: Formula: true InVars {} OutVars{main_~i~2=v_main_~i~2_1} AuxVars[] AssignedVars[main_~i~2] [2018-01-30 00:46:33,640 INFO L84 mationBacktranslator]: Skipped ATE [313] [313] L541-->L542: Formula: true InVars {} OutVars{main_~j~2=v_main_~j~2_1} AuxVars[] AssignedVars[main_~j~2] [2018-01-30 00:46:33,640 INFO L84 mationBacktranslator]: Skipped ATE [317] [317] L542-->L543: Formula: true InVars {} OutVars{main_~val~2=v_main_~val~2_1} AuxVars[] AssignedVars[main_~val~2] [2018-01-30 00:46:33,640 INFO L84 mationBacktranslator]: Skipped ATE [319] [319] L543-->L543': Formula: (and (<= |v_main_#t~nondet0_1| 2147483647) (<= 0 (+ |v_main_#t~nondet0_1| 2147483648))) InVars {main_#t~nondet0=|v_main_#t~nondet0_1|} OutVars{main_#t~nondet0=|v_main_#t~nondet0_1|} AuxVars[] AssignedVars[] [2018-01-30 00:46:33,640 INFO L84 mationBacktranslator]: Skipped ATE [321] [321] L543'-->L543'': Formula: (= v_main_~length~2_1 |v_main_#t~nondet0_2|) InVars {main_#t~nondet0=|v_main_#t~nondet0_2|} OutVars{main_#t~nondet0=|v_main_#t~nondet0_2|, main_~length~2=v_main_~length~2_1} AuxVars[] AssignedVars[main_~length~2] [2018-01-30 00:46:33,640 INFO L84 mationBacktranslator]: Skipped ATE [323] [323] L543''-->L544: Formula: true InVars {} OutVars{main_#t~nondet0=|v_main_#t~nondet0_3|} AuxVars[] AssignedVars[main_#t~nondet0] [2018-01-30 00:46:33,640 INFO L84 mationBacktranslator]: Skipped ATE [327] [327] L544-->L544''': Formula: (not (< v_main_~length~2_4 1)) InVars {main_~length~2=v_main_~length~2_4} OutVars{main_~length~2=v_main_~length~2_4} AuxVars[] AssignedVars[] [2018-01-30 00:46:33,640 INFO L84 mationBacktranslator]: Skipped ATE [331] [331] L544'''-->L545: Formula: (and (= (select |v_#valid_8| |v_main_#t~malloc1.base_1|) 0) (= |v_#length_3| (store |v_#length_4| |v_main_#t~malloc1.base_1| v_main_~length~2_5)) (= (store |v_#valid_8| |v_main_#t~malloc1.base_1| 1) |v_#valid_7|) (not (= 0 |v_main_#t~malloc1.base_1|)) (= |v_main_#t~malloc1.offset_1| 0)) InVars {#length=|v_#length_4|, main_~length~2=v_main_~length~2_5, #valid=|v_#valid_8|} OutVars{main_#t~malloc1.base=|v_main_#t~malloc1.base_1|, #length=|v_#length_3|, main_~length~2=v_main_~length~2_5, main_#t~malloc1.offset=|v_main_#t~malloc1.offset_1|, #valid=|v_#valid_7|} AuxVars[] AssignedVars[main_#t~malloc1.base, main_#t~malloc1.offset, #valid, #length] [2018-01-30 00:46:33,641 INFO L84 mationBacktranslator]: Skipped ATE [333] [333] L545-->L546: Formula: (and (= v_main_~arr~2.base_1 |v_main_#t~malloc1.base_2|) (= v_main_~arr~2.offset_1 |v_main_#t~malloc1.offset_2|)) InVars {main_#t~malloc1.base=|v_main_#t~malloc1.base_2|, main_#t~malloc1.offset=|v_main_#t~malloc1.offset_2|} OutVars{main_~arr~2.offset=v_main_~arr~2.offset_1, main_#t~malloc1.base=|v_main_#t~malloc1.base_2|, main_#t~malloc1.offset=|v_main_#t~malloc1.offset_2|, main_~arr~2.base=v_main_~arr~2.base_1} AuxVars[] AssignedVars[main_~arr~2.base, main_~arr~2.offset] [2018-01-30 00:46:33,641 INFO L84 mationBacktranslator]: Skipped ATE [337] [337] L546-->L547: Formula: (or (not (= 0 v_main_~arr~2.offset_3)) (not (= 0 v_main_~arr~2.base_3))) InVars {main_~arr~2.offset=v_main_~arr~2.offset_3, main_~arr~2.base=v_main_~arr~2.base_3} OutVars{main_~arr~2.offset=v_main_~arr~2.offset_3, main_~arr~2.base=v_main_~arr~2.base_3} AuxVars[] AssignedVars[] [2018-01-30 00:46:33,641 INFO L84 mationBacktranslator]: Skipped ATE [341] [341] L547-->L547''''': Formula: (= v_main_~i~2_2 0) InVars {} OutVars{main_~i~2=v_main_~i~2_2} AuxVars[] AssignedVars[main_~i~2] [2018-01-30 00:46:33,641 INFO L84 mationBacktranslator]: Skipped ATE [345] [345] L547'''''-->L547': Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-01-30 00:46:33,641 INFO L84 mationBacktranslator]: Skipped ATE [353] [353] L547'-->L548: Formula: (< v_main_~i~2_4 v_main_~length~2_7) InVars {main_~i~2=v_main_~i~2_4, main_~length~2=v_main_~length~2_7} OutVars{main_~i~2=v_main_~i~2_4, main_~length~2=v_main_~length~2_7} AuxVars[] AssignedVars[] [2018-01-30 00:46:33,641 INFO L84 mationBacktranslator]: Skipped ATE [361] [361] L548-->L548': Formula: (and (<= 0 (+ |v_main_#t~nondet3_1| 2147483648)) (<= |v_main_#t~nondet3_1| 2147483647)) InVars {main_#t~nondet3=|v_main_#t~nondet3_1|} OutVars{main_#t~nondet3=|v_main_#t~nondet3_1|} AuxVars[] AssignedVars[] [2018-01-30 00:46:33,641 INFO L84 mationBacktranslator]: Skipped ATE [367] [367] L548'-->L548'': Formula: (= v_main_~val~2_2 |v_main_#t~nondet3_2|) InVars {main_#t~nondet3=|v_main_#t~nondet3_2|} OutVars{main_#t~nondet3=|v_main_#t~nondet3_2|, main_~val~2=v_main_~val~2_2} AuxVars[] AssignedVars[main_~val~2] [2018-01-30 00:46:33,641 INFO L84 mationBacktranslator]: Skipped ATE [375] [375] L548''-->L549: Formula: true InVars {} OutVars{main_#t~nondet3=|v_main_#t~nondet3_3|} AuxVars[] AssignedVars[main_#t~nondet3] [2018-01-30 00:46:33,641 INFO L84 mationBacktranslator]: Skipped ATE [385] [385] L549-->L549'': Formula: (not (< v_main_~val~2_5 0)) InVars {main_~val~2=v_main_~val~2_5} OutVars{main_~val~2=v_main_~val~2_5} AuxVars[] AssignedVars[] [2018-01-30 00:46:33,642 INFO L84 mationBacktranslator]: Skipped ATE [403] [403] L549''-->mainErr1RequiresViolation: Formula: (let ((.cse0 (* 4 v_main_~i~2_6))) (or (not (<= (+ .cse0 v_main_~arr~2.offset_5 4) (select |v_#length_6| v_main_~arr~2.base_6))) (not (<= 0 (+ .cse0 v_main_~arr~2.offset_5))))) InVars {main_~arr~2.offset=v_main_~arr~2.offset_5, main_~i~2=v_main_~i~2_6, #length=|v_#length_6|, main_~arr~2.base=v_main_~arr~2.base_6} OutVars{main_~arr~2.offset=v_main_~arr~2.offset_5, main_~i~2=v_main_~i~2_6, #length=|v_#length_6|, main_~arr~2.base=v_main_~arr~2.base_6} AuxVars[] AssignedVars[] [2018-01-30 00:46:33,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 12:46:33 BasicIcfg [2018-01-30 00:46:33,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-30 00:46:33,646 INFO L168 Benchmark]: Toolchain (without parser) took 55200.12 ms. Allocated memory was 306.7 MB in the beginning and 2.3 GB in the end (delta: 1.9 GB). Free memory was 266.6 MB in the beginning and 2.1 GB in the end (delta: -1.9 GB). Peak memory consumption was 69.3 MB. Max. memory is 5.3 GB. [2018-01-30 00:46:33,647 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 306.7 MB. Free memory is still 272.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 00:46:33,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 207.28 ms. Allocated memory is still 306.7 MB. Free memory was 265.6 MB in the beginning and 255.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-30 00:46:33,647 INFO L168 Benchmark]: Boogie Preprocessor took 39.06 ms. Allocated memory is still 306.7 MB. Free memory was 255.6 MB in the beginning and 253.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-30 00:46:33,647 INFO L168 Benchmark]: RCFGBuilder took 309.56 ms. Allocated memory is still 306.7 MB. Free memory was 253.6 MB in the beginning and 235.5 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 5.3 GB. [2018-01-30 00:46:33,647 INFO L168 Benchmark]: IcfgTransformer took 53993.00 ms. Allocated memory was 306.7 MB in the beginning and 2.2 GB in the end (delta: 1.8 GB). Free memory was 235.5 MB in the beginning and 1.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 727.4 MB. Max. memory is 5.3 GB. [2018-01-30 00:46:33,648 INFO L168 Benchmark]: TraceAbstraction took 643.72 ms. Allocated memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: 102.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -791.9 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 00:46:33,649 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 306.7 MB. Free memory is still 272.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 207.28 ms. Allocated memory is still 306.7 MB. Free memory was 265.6 MB in the beginning and 255.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 39.06 ms. Allocated memory is still 306.7 MB. Free memory was 255.6 MB in the beginning and 253.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 309.56 ms. Allocated memory is still 306.7 MB. Free memory was 253.6 MB in the beginning and 235.5 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 5.3 GB. * IcfgTransformer took 53993.00 ms. Allocated memory was 306.7 MB in the beginning and 2.2 GB in the end (delta: 1.8 GB). Free memory was 235.5 MB in the beginning and 1.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 727.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 643.72 ms. Allocated memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: 102.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -791.9 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 : 55 LocStat_MAX_WEQGRAPH_SIZE : 3 LocStat_MAX_SIZEOF_WEQEDGELABEL : 3 LocStat_NO_SUPPORTING_EQUALITIES : 1131 LocStat_NO_SUPPORTING_DISEQUALITIES : 819 LocStat_NO_DISJUNCTIONS : -110 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 77 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 115 TransStat_NO_SUPPORTING_DISEQUALITIES : 9 TransStat_NO_DISJUNCTIONS : 79 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 1.245947 RENAME_VARIABLES(MILLISECONDS) : 0.009366 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.968117 PROJECTAWAY(MILLISECONDS) : 0.032904 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.058912 DISJOIN(MILLISECONDS) : 0.574257 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.018523 ADD_EQUALITY(MILLISECONDS) : 0.029621 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.074500 #CONJOIN_DISJUNCTIVE : 960 #RENAME_VARIABLES : 1979 #UNFREEZE : 0 #CONJOIN : 1143 #PROJECTAWAY : 999 #ADD_WEAK_EQUALITY : 8 #DISJOIN : 234 #RENAME_VARIABLES_DISJUNCTIVE : 1952 #ADD_EQUALITY : 117 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 8 * 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 : 2 COUNT_BLOCKS_for_[#memory_int]_at_dim_0 : 1 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_1 : 2 COUNT_BLOCKS_for_[#memory_int]_at_dim_1 : 1 COUNT_ARRAY_READS for [#memory_int] : 4 * 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 3 procedures, 64 locations, 9 error locations. UNSAFE Result, 0.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 100 SDtfs, 159 SDslu, 70 SDs, 0 SdLazy, 37 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 1436 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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/count_down_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-Benchmark-0-2018-01-30_00-46-33-659.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/count_down_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-VPDomainBenchmark-0-2018-01-30_00-46-33-659.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/count_down_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-BenchmarkWithCounters-0-2018-01-30_00-46-33-659.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/count_down_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-HeapSeparatorBenchmark-0-2018-01-30_00-46-33-659.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/count_down_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-30_00-46-33-659.csv Received shutdown request...