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 0.1.23-8168ed2-m [2018-04-11 23:25:57,595 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 23:25:57,596 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 23:25:57,611 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 23:25:57,612 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 23:25:57,613 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 23:25:57,614 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 23:25:57,616 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 23:25:57,618 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 23:25:57,619 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 23:25:57,619 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 23:25:57,620 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 23:25:57,621 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 23:25:57,622 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 23:25:57,623 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 23:25:57,625 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 23:25:57,627 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 23:25:57,629 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 23:25:57,630 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 23:25:57,631 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 23:25:57,633 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-11 23:25:57,634 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-11 23:25:57,634 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-11 23:25:57,635 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-11 23:25:57,636 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-11 23:25:57,637 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-11 23:25:57,637 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-11 23:25:57,638 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-11 23:25:57,638 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-11 23:25:57,639 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 23:25:57,639 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 23:25:57,640 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 [2018-04-11 23:25:57,663 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 23:25:57,664 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 23:25:57,664 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-11 23:25:57,664 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-11 23:25:57,665 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-11 23:25:57,665 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-11 23:25:57,665 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-11 23:25:57,665 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-11 23:25:57,666 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-04-11 23:25:57,666 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-11 23:25:57,666 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-11 23:25:57,666 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-11 23:25:57,667 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 23:25:57,667 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 23:25:57,667 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 23:25:57,667 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 23:25:57,667 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 23:25:57,668 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 23:25:57,668 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 23:25:57,668 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-11 23:25:57,668 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 23:25:57,668 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 23:25:57,669 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 23:25:57,669 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-11 23:25:57,669 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-11 23:25:57,669 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 23:25:57,669 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 23:25:57,670 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 23:25:57,670 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 23:25:57,670 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 23:25:57,670 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-11 23:25:57,671 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-11 23:25:57,671 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 23:25:57,671 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-11 23:25:57,672 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-11 23:25:57,672 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-11 23:25:57,672 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-11 23:25:57,672 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-11 23:25:57,707 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 23:25:57,720 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 23:25:57,724 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 23:25:57,726 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 23:25:57,726 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 23:25:57,727 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety-bitfields/test-bitfields-1_false-valid-deref.i [2018-04-11 23:25:58,059 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG1a4d84719 [2018-04-11 23:25:58,186 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 23:25:58,186 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 23:25:58,187 INFO L168 CDTParser]: Scanning test-bitfields-1_false-valid-deref.i [2018-04-11 23:25:58,188 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 23:25:58,188 INFO L215 ultiparseSymbolTable]: [2018-04-11 23:25:58,188 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 23:25:58,188 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in test-bitfields-1_false-valid-deref.i [2018-04-11 23:25:58,188 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 23:25:58,189 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest_bitfields___false_valid_deref_i__size_t in test-bitfields-1_false-valid-deref.i [2018-04-11 23:25:58,203 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG1a4d84719 [2018-04-11 23:25:58,207 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 23:25:58,210 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 23:25:58,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 23:25:58,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 23:25:58,218 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 23:25:58,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 11:25:58" (1/1) ... [2018-04-11 23:25:58,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dab2de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:25:58, skipping insertion in model container [2018-04-11 23:25:58,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 11:25:58" (1/1) ... [2018-04-11 23:25:58,236 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 23:25:58,245 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 23:25:58,385 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 23:25:58,411 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 23:25:58,416 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 11 non ball SCCs. Number of states in SCCs 11. [2018-04-11 23:25:58,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:25:58 WrapperNode [2018-04-11 23:25:58,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 23:25:58,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 23:25:58,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 23:25:58,428 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 23:25:58,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:25:58" (1/1) ... [2018-04-11 23:25:58,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:25:58" (1/1) ... [2018-04-11 23:25:58,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:25:58" (1/1) ... [2018-04-11 23:25:58,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:25:58" (1/1) ... [2018-04-11 23:25:58,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:25:58" (1/1) ... [2018-04-11 23:25:58,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:25:58" (1/1) ... [2018-04-11 23:25:58,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:25:58" (1/1) ... [2018-04-11 23:25:58,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 23:25:58,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 23:25:58,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 23:25:58,467 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 23:25:58,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:25:58" (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 [2018-04-11 23:25:58,531 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 23:25:58,531 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 23:25:58,531 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 23:25:58,532 INFO L128 BoogieDeclarations]: Found specification of procedure memcpy [2018-04-11 23:25:58,532 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 23:25:58,532 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 23:25:58,532 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 23:25:58,532 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 23:25:58,532 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 23:25:58,532 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 23:25:58,533 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 23:25:58,533 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 23:25:58,533 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 23:25:58,533 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 23:25:58,818 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 23:25:58,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 11:25:58 BoogieIcfgContainer [2018-04-11 23:25:58,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 23:25:58,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 23:25:58,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 23:25:58,824 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 23:25:58,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 11:25:58" (1/3) ... [2018-04-11 23:25:58,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d440ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 11:25:58, skipping insertion in model container [2018-04-11 23:25:58,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:25:58" (2/3) ... [2018-04-11 23:25:58,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d440ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 11:25:58, skipping insertion in model container [2018-04-11 23:25:58,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 11:25:58" (3/3) ... [2018-04-11 23:25:58,828 INFO L107 eAbstractionObserver]: Analyzing ICFG test-bitfields-1_false-valid-deref.i [2018-04-11 23:25:58,839 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 23:25:58,846 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 27 error locations. [2018-04-11 23:25:58,885 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 23:25:58,886 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 23:25:58,886 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-11 23:25:58,886 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 23:25:58,886 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 23:25:58,887 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 23:25:58,887 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 23:25:58,887 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 23:25:58,887 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 23:25:58,888 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 23:25:58,903 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2018-04-11 23:25:58,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-04-11 23:25:58,907 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 23:25:58,908 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 23:25:58,908 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]=== [2018-04-11 23:25:58,912 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 [2018-04-11 23:25:58,923 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 23:25:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 23:25:58,964 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 23:25:59,001 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 [2018-04-11 23:25:59,003 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 23:25:59,008 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:25:59,008 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 23:25:59,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:25:59,031 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 23:25:59,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:25:59,065 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 23:25:59,066 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-11 23:25:59,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 23:25:59,077 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 23:25:59,078 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 23:25:59,081 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 4 states. [2018-04-11 23:25:59,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 23:25:59,266 INFO L93 Difference]: Finished difference Result 124 states and 139 transitions. [2018-04-11 23:25:59,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 23:25:59,268 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-04-11 23:25:59,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 23:25:59,279 INFO L225 Difference]: With dead ends: 124 [2018-04-11 23:25:59,279 INFO L226 Difference]: Without dead ends: 108 [2018-04-11 23:25:59,282 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 [2018-04-11 23:25:59,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-04-11 23:25:59,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 68. [2018-04-11 23:25:59,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-04-11 23:25:59,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2018-04-11 23:25:59,323 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 75 transitions. Word has length 10 [2018-04-11 23:25:59,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 23:25:59,323 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 75 transitions. [2018-04-11 23:25:59,323 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 23:25:59,324 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 75 transitions. [2018-04-11 23:25:59,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-04-11 23:25:59,324 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 23:25:59,324 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 23:25:59,324 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]=== [2018-04-11 23:25:59,325 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 [2018-04-11 23:25:59,336 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 23:25:59,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 23:25:59,348 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 23:25:59,359 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 [2018-04-11 23:25:59,359 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 23:25:59,364 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:25:59,365 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 23:25:59,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:25:59,375 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 23:25:59,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:25:59,454 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 23:25:59,454 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2018-04-11 23:25:59,456 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 23:25:59,456 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 23:25:59,456 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-11 23:25:59,456 INFO L87 Difference]: Start difference. First operand 68 states and 75 transitions. Second operand 6 states. [2018-04-11 23:25:59,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 23:25:59,502 INFO L93 Difference]: Finished difference Result 68 states and 75 transitions. [2018-04-11 23:25:59,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 23:25:59,503 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-04-11 23:25:59,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 23:25:59,504 INFO L225 Difference]: With dead ends: 68 [2018-04-11 23:25:59,504 INFO L226 Difference]: Without dead ends: 31 [2018-04-11 23:25:59,505 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 [2018-04-11 23:25:59,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-04-11 23:25:59,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-04-11 23:25:59,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-04-11 23:25:59,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2018-04-11 23:25:59,510 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 10 [2018-04-11 23:25:59,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 23:25:59,510 INFO L459 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2018-04-11 23:25:59,511 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 23:25:59,511 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2018-04-11 23:25:59,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-11 23:25:59,512 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 23:25:59,512 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 23:25:59,512 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]=== [2018-04-11 23:25:59,512 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 [2018-04-11 23:25:59,529 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 23:25:59,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 23:25:59,544 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 23:25:59,564 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 [2018-04-11 23:25:59,566 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 [2018-04-11 23:25:59,567 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 23:25:59,568 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:25:59,570 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:25:59,570 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2018-04-11 23:25:59,576 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 [2018-04-11 23:25:59,578 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 [2018-04-11 23:25:59,579 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 23:25:59,580 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:25:59,581 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:25:59,581 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2018-04-11 23:25:59,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:25:59,589 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 23:25:59,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:25:59,632 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 23:25:59,633 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-11 23:25:59,633 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 23:25:59,633 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 23:25:59,634 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-11 23:25:59,634 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 6 states. [2018-04-11 23:25:59,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 23:25:59,678 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2018-04-11 23:25:59,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 23:25:59,680 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-04-11 23:25:59,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 23:25:59,681 INFO L225 Difference]: With dead ends: 42 [2018-04-11 23:25:59,682 INFO L226 Difference]: Without dead ends: 25 [2018-04-11 23:25:59,682 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 [2018-04-11 23:25:59,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-04-11 23:25:59,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-04-11 23:25:59,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-04-11 23:25:59,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-04-11 23:25:59,686 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 17 [2018-04-11 23:25:59,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 23:25:59,686 INFO L459 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-04-11 23:25:59,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 23:25:59,686 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-04-11 23:25:59,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-11 23:25:59,687 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 23:25:59,687 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 23:25:59,688 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]=== [2018-04-11 23:25:59,688 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 [2018-04-11 23:25:59,701 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 23:25:59,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-11 23:25:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-11 23:25:59,788 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-11 23:25:59,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 11:25:59 BoogieIcfgContainer [2018-04-11 23:25:59,815 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 23:25:59,816 INFO L168 Benchmark]: Toolchain (without parser) took 1607.74 ms. Allocated memory was 303.0 MB in the beginning and 461.9 MB in the end (delta: 158.9 MB). Free memory was 246.5 MB in the beginning and 337.9 MB in the end (delta: -91.4 MB). Peak memory consumption was 67.4 MB. Max. memory is 5.3 GB. [2018-04-11 23:25:59,818 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 303.0 MB. Free memory is still 265.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 23:25:59,818 INFO L168 Benchmark]: CACSL2BoogieTranslator took 216.29 ms. Allocated memory is still 303.0 MB. Free memory was 246.5 MB in the beginning and 235.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-04-11 23:25:59,818 INFO L168 Benchmark]: Boogie Preprocessor took 38.67 ms. Allocated memory is still 303.0 MB. Free memory was 235.8 MB in the beginning and 233.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-04-11 23:25:59,819 INFO L168 Benchmark]: RCFGBuilder took 352.18 ms. Allocated memory was 303.0 MB in the beginning and 461.9 MB in the end (delta: 158.9 MB). Free memory was 233.9 MB in the beginning and 426.1 MB in the end (delta: -192.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 5.3 GB. [2018-04-11 23:25:59,820 INFO L168 Benchmark]: TraceAbstraction took 994.69 ms. Allocated memory is still 461.9 MB. Free memory was 424.7 MB in the beginning and 337.9 MB in the end (delta: 86.8 MB). Peak memory consumption was 86.8 MB. Max. memory is 5.3 GB. [2018-04-11 23:25:59,823 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 265.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 216.29 ms. Allocated memory is still 303.0 MB. Free memory was 246.5 MB in the beginning and 235.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 38.67 ms. Allocated memory is still 303.0 MB. Free memory was 235.8 MB in the beginning and 233.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 352.18 ms. Allocated memory was 303.0 MB in the beginning and 461.9 MB in the end (delta: 158.9 MB). Free memory was 233.9 MB in the beginning and 426.1 MB in the end (delta: -192.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 994.69 ms. Allocated memory is still 461.9 MB. Free memory was 424.7 MB in the beginning and 337.9 MB in the end (delta: 86.8 MB). Peak memory consumption was 86.8 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, 0.9s 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-0-2018-04-11_23-25-59-833.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-0-2018-04-11_23-25-59-833.csv Received shutdown request...