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/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/ldv-memsafety-bitfields/test-bitfields-1_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-4cf2d92 [2018-03-28 13:21:53,971 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-28 13:21:53,972 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-28 13:21:53,986 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-28 13:21:53,986 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-28 13:21:53,987 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-28 13:21:53,988 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-28 13:21:53,989 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-28 13:21:53,992 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-28 13:21:53,992 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-28 13:21:53,993 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-28 13:21:53,994 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-28 13:21:53,995 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-28 13:21:53,996 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-28 13:21:53,997 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-28 13:21:53,999 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-28 13:21:54,001 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-28 13:21:54,003 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-28 13:21:54,004 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-28 13:21:54,006 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-28 13:21:54,008 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-03-28 13:21:54,014 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-28 13:21:54,015 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-28 13:21:54,015 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-03-28 13:21:54,038 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-28 13:21:54,038 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-28 13:21:54,039 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-03-28 13:21:54,039 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-03-28 13:21:54,039 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-28 13:21:54,039 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-28 13:21:54,040 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-28 13:21:54,040 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-28 13:21:54,040 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-28 13:21:54,040 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-03-28 13:21:54,040 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-03-28 13:21:54,040 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-28 13:21:54,041 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-28 13:21:54,041 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-28 13:21:54,041 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-28 13:21:54,041 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-28 13:21:54,041 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-28 13:21:54,041 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-28 13:21:54,042 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-28 13:21:54,042 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-28 13:21:54,042 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-28 13:21:54,042 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-28 13:21:54,042 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-28 13:21:54,042 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-28 13:21:54,043 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-28 13:21:54,043 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-28 13:21:54,043 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-28 13:21:54,043 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-28 13:21:54,043 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-28 13:21:54,044 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-28 13:21:54,044 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-28 13:21:54,044 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:21:54,044 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-28 13:21:54,045 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-28 13:21:54,045 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-28 13:21:54,045 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-03-28 13:21:54,045 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-03-28 13:21:54,078 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-28 13:21:54,090 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-28 13:21:54,093 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-28 13:21:54,094 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-28 13:21:54,095 INFO L276 PluginConnector]: CDTParser initialized [2018-03-28 13:21:54,096 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety-bitfields/test-bitfields-1_false-valid-deref.i [2018-03-28 13:21:54,387 INFO L228 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGf147585c2 [2018-03-28 13:21:54,537 INFO L291 CDTParser]: IsIndexed: true [2018-03-28 13:21:54,537 INFO L292 CDTParser]: Found 1 translation units. [2018-03-28 13:21:54,538 INFO L171 CDTParser]: Scanning test-bitfields-1_false-valid-deref.i [2018-03-28 13:21:54,539 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-28 13:21:54,539 INFO L215 ultiparseSymbolTable]: [2018-03-28 13:21:54,539 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-28 13:21:54,539 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in test-bitfields-1_false-valid-deref.i [2018-03-28 13:21:54,539 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-28 13:21:54,540 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest_bitfields___false_valid_deref_i__size_t in test-bitfields-1_false-valid-deref.i [2018-03-28 13:21:54,556 INFO L334 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGf147585c2 [2018-03-28 13:21:54,561 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-28 13:21:54,564 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-28 13:21:54,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-28 13:21:54,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-28 13:21:54,572 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-28 13:21:54,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 01:21:54" (1/1) ... [2018-03-28 13:21:54,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f69d6ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:21:54, skipping insertion in model container [2018-03-28 13:21:54,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 01:21:54" (1/1) ... [2018-03-28 13:21:54,593 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-28 13:21:54,605 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-28 13:21:54,757 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-28 13:21:54,779 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-28 13:21:54,785 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 11 non ball SCCs. Number of states in SCCs 11. [2018-03-28 13:21:54,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:21:54 WrapperNode [2018-03-28 13:21:54,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-28 13:21:54,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-28 13:21:54,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-28 13:21:54,797 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-28 13:21:54,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:21:54" (1/1) ... [2018-03-28 13:21:54,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:21:54" (1/1) ... [2018-03-28 13:21:54,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:21:54" (1/1) ... [2018-03-28 13:21:54,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:21:54" (1/1) ... [2018-03-28 13:21:54,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:21:54" (1/1) ... [2018-03-28 13:21:54,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:21:54" (1/1) ... [2018-03-28 13:21:54,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:21:54" (1/1) ... [2018-03-28 13:21:54,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-28 13:21:54,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-28 13:21:54,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-28 13:21:54,837 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-28 13:21:54,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:21:54" (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 [2018-03-28 13:21:54,900 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-28 13:21:54,900 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-28 13:21:54,901 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-28 13:21:54,901 INFO L128 BoogieDeclarations]: Found specification of procedure memcpy [2018-03-28 13:21:54,901 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-03-28 13:21:54,901 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-03-28 13:21:54,901 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-28 13:21:54,901 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-28 13:21:54,902 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-28 13:21:54,902 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-28 13:21:54,902 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-28 13:21:54,902 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-28 13:21:54,902 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-28 13:21:54,903 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-28 13:21:55,197 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-28 13:21:55,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 01:21:55 BoogieIcfgContainer [2018-03-28 13:21:55,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-28 13:21:55,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-28 13:21:55,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-28 13:21:55,201 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-28 13:21:55,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 01:21:54" (1/3) ... [2018-03-28 13:21:55,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45253d52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 01:21:55, skipping insertion in model container [2018-03-28 13:21:55,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:21:54" (2/3) ... [2018-03-28 13:21:55,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45253d52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 01:21:55, skipping insertion in model container [2018-03-28 13:21:55,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 01:21:55" (3/3) ... [2018-03-28 13:21:55,204 INFO L107 eAbstractionObserver]: Analyzing ICFG test-bitfields-1_false-valid-deref.i [2018-03-28 13:21:55,210 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-28 13:21:55,218 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 27 error locations. [2018-03-28 13:21:55,254 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-28 13:21:55,254 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-28 13:21:55,255 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-28 13:21:55,255 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-28 13:21:55,255 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-28 13:21:55,255 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-28 13:21:55,255 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-28 13:21:55,255 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-28 13:21:55,256 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-28 13:21:55,257 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-28 13:21:55,277 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2018-03-28 13:21:55,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-03-28 13:21:55,284 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:21:55,284 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:21:55,285 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr26EnsuresViolationMEMORY_LEAK, mainErr10AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr4AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation, mainErr5AssertViolationMEMORY_FREE]=== [2018-03-28 13:21:55,289 INFO L82 PathProgramCache]: Analyzing trace with hash -723966486, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:21:55,303 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:21:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:21:55,340 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:21:55,376 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 [2018-03-28 13:21:55,378 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:21:55,384 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:21:55,384 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-28 13:21:55,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:21:55,410 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:21:55,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:21:55,458 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:21:55,458 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-28 13:21:55,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-28 13:21:55,470 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-28 13:21:55,471 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-28 13:21:55,473 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 4 states. [2018-03-28 13:21:55,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:21:55,696 INFO L93 Difference]: Finished difference Result 124 states and 139 transitions. [2018-03-28 13:21:55,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-28 13:21:55,698 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-03-28 13:21:55,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:21:55,710 INFO L225 Difference]: With dead ends: 124 [2018-03-28 13:21:55,710 INFO L226 Difference]: Without dead ends: 108 [2018-03-28 13:21:55,714 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-28 13:21:55,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-03-28 13:21:55,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 68. [2018-03-28 13:21:55,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-03-28 13:21:55,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2018-03-28 13:21:55,756 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 75 transitions. Word has length 10 [2018-03-28 13:21:55,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:21:55,756 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 75 transitions. [2018-03-28 13:21:55,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-28 13:21:55,757 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 75 transitions. [2018-03-28 13:21:55,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-03-28 13:21:55,757 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:21:55,758 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:21:55,758 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr26EnsuresViolationMEMORY_LEAK, mainErr10AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr4AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation, mainErr5AssertViolationMEMORY_FREE]=== [2018-03-28 13:21:55,758 INFO L82 PathProgramCache]: Analyzing trace with hash -723966485, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:21:55,770 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:21:55,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:21:55,788 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:21:55,800 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 [2018-03-28 13:21:55,801 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:21:55,805 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:21:55,805 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-28 13:21:55,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:21:55,818 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:21:55,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:21:55,898 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:21:55,898 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2018-03-28 13:21:55,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-03-28 13:21:55,900 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-03-28 13:21:55,900 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-03-28 13:21:55,901 INFO L87 Difference]: Start difference. First operand 68 states and 75 transitions. Second operand 6 states. [2018-03-28 13:21:55,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:21:55,954 INFO L93 Difference]: Finished difference Result 68 states and 75 transitions. [2018-03-28 13:21:55,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-28 13:21:55,954 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-03-28 13:21:55,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:21:55,955 INFO L225 Difference]: With dead ends: 68 [2018-03-28 13:21:55,955 INFO L226 Difference]: Without dead ends: 31 [2018-03-28 13:21:55,956 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-03-28 13:21:55,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-03-28 13:21:55,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-03-28 13:21:55,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-03-28 13:21:55,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2018-03-28 13:21:55,961 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 10 [2018-03-28 13:21:55,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:21:55,962 INFO L459 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2018-03-28 13:21:55,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-03-28 13:21:55,962 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2018-03-28 13:21:55,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-03-28 13:21:55,963 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:21:55,963 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:21:55,963 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr26EnsuresViolationMEMORY_LEAK, mainErr10AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr4AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation, mainErr5AssertViolationMEMORY_FREE]=== [2018-03-28 13:21:55,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1699303308, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:21:55,971 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:21:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:21:55,986 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:21:55,993 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-03-28 13:21:55,995 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 8 treesize of output 7 [2018-03-28 13:21:55,996 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:21:55,999 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:21:56,001 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:21:56,001 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2018-03-28 13:21:56,011 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-03-28 13:21:56,015 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 11 treesize of output 3 [2018-03-28 13:21:56,016 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:21:56,017 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:21:56,018 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:21:56,018 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2018-03-28 13:21:56,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:21:56,023 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:21:56,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:21:56,085 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:21:56,086 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-03-28 13:21:56,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-03-28 13:21:56,086 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-03-28 13:21:56,087 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-03-28 13:21:56,087 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 6 states. [2018-03-28 13:21:56,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:21:56,123 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2018-03-28 13:21:56,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-28 13:21:56,124 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-03-28 13:21:56,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:21:56,125 INFO L225 Difference]: With dead ends: 42 [2018-03-28 13:21:56,125 INFO L226 Difference]: Without dead ends: 25 [2018-03-28 13:21:56,125 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-03-28 13:21:56,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-03-28 13:21:56,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-03-28 13:21:56,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-03-28 13:21:56,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-03-28 13:21:56,129 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 17 [2018-03-28 13:21:56,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:21:56,129 INFO L459 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-03-28 13:21:56,130 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-03-28 13:21:56,130 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-03-28 13:21:56,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-03-28 13:21:56,130 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:21:56,131 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:21:56,131 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr13RequiresViolation, mainErr25AssertViolationMEMORY_FREE, mainErr26EnsuresViolationMEMORY_LEAK, mainErr10AssertViolationMEMORY_FREE, mainErr18RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr1RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr4AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr22AssertViolationMEMORY_FREE, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation, mainErr5AssertViolationMEMORY_FREE]=== [2018-03-28 13:21:56,131 INFO L82 PathProgramCache]: Analyzing trace with hash -114399927, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:21:56,147 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:21:56,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-28 13:21:56,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-28 13:21:56,227 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-03-28 13:21:56,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 01:21:56 BoogieIcfgContainer [2018-03-28 13:21:56,249 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-28 13:21:56,250 INFO L168 Benchmark]: Toolchain (without parser) took 1689.06 ms. Allocated memory was 303.0 MB in the beginning and 460.8 MB in the end (delta: 157.8 MB). Free memory was 245.1 MB in the beginning and 340.2 MB in the end (delta: -95.0 MB). Peak memory consumption was 62.8 MB. Max. memory is 5.3 GB. [2018-03-28 13:21:56,251 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 303.0 MB. Free memory is still 265.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-28 13:21:56,252 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.85 ms. Allocated memory is still 303.0 MB. Free memory was 245.1 MB in the beginning and 235.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-03-28 13:21:56,252 INFO L168 Benchmark]: Boogie Preprocessor took 40.29 ms. Allocated memory is still 303.0 MB. Free memory was 235.1 MB in the beginning and 233.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-03-28 13:21:56,253 INFO L168 Benchmark]: RCFGBuilder took 360.69 ms. Allocated memory was 303.0 MB in the beginning and 460.8 MB in the end (delta: 157.8 MB). Free memory was 233.1 MB in the beginning and 424.8 MB in the end (delta: -191.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 5.3 GB. [2018-03-28 13:21:56,253 INFO L168 Benchmark]: TraceAbstraction took 1051.27 ms. Allocated memory is still 460.8 MB. Free memory was 423.5 MB in the beginning and 340.2 MB in the end (delta: 83.4 MB). Peak memory consumption was 83.4 MB. Max. memory is 5.3 GB. [2018-03-28 13:21:56,256 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 303.0 MB. Free memory is still 265.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 230.85 ms. Allocated memory is still 303.0 MB. Free memory was 245.1 MB in the beginning and 235.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 40.29 ms. Allocated memory is still 303.0 MB. Free memory was 235.1 MB in the beginning and 233.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 360.69 ms. Allocated memory was 303.0 MB in the beginning and 460.8 MB in the end (delta: 157.8 MB). Free memory was 233.1 MB in the beginning and 424.8 MB in the end (delta: -191.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1051.27 ms. Allocated memory is still 460.8 MB. Free memory was 423.5 MB in the beginning and 340.2 MB in the end (delta: 83.4 MB). Peak memory consumption was 83.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 33]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L23] struct A *p; [L24] EXPR, FCALL malloc(2) VAL [malloc(2)={8:0}] [L24] p = malloc(2) VAL [malloc(2)={8:0}, p={8:0}] [L25] FCALL p->a = 1 VAL [malloc(2)={8:0}, p={8:0}] [L26] EXPR, FCALL p->a VAL [malloc(2)={8:0}, p={8:0}, p->a=1] [L26] COND FALSE !(p->a != 1) VAL [malloc(2)={8:0}, p={8:0}, p->a=1] [L29] FCALL p->b = 2 VAL [malloc(2)={8:0}, p={8:0}] [L30] EXPR, FCALL p->b VAL [malloc(2)={8:0}, p={8:0}, p->b=2] [L30] COND FALSE !(p->b != 2) VAL [malloc(2)={8:0}, p={8:0}, p->b=2] [L33] FCALL p->c = 3 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 75 locations, 27 error locations. UNSAFE Result, 1.0s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 84 SDtfs, 208 SDslu, 108 SDs, 0 SdLazy, 99 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred 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, 3 MinimizatonAttempts, 40 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 1624 SizeOfPredicates, 8 NumberOfNonLiveVariables, 136 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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/test-bitfields-1_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-28_13-21-56-263.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-bitfields-1_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-03-28_13-21-56-263.csv Received shutdown request...