java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero3_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cceb4a [2018-01-30 02:36:19,882 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-30 02:36:19,884 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-30 02:36:19,913 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-30 02:36:19,914 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-30 02:36:19,915 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-30 02:36:19,916 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-30 02:36:19,918 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-30 02:36:19,920 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-30 02:36:19,921 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-30 02:36:19,922 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-30 02:36:19,922 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-30 02:36:19,923 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-30 02:36:19,924 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-30 02:36:19,925 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-30 02:36:19,927 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-30 02:36:19,929 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-30 02:36:19,931 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-30 02:36:19,933 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-30 02:36:19,934 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-30 02:36:19,937 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-30 02:36:19,937 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-30 02:36:19,937 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-30 02:36:19,938 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-30 02:36:19,939 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-30 02:36:19,941 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-30 02:36:19,941 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-30 02:36:19,942 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-30 02:36:19,942 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-30 02:36:19,942 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-30 02:36:19,943 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-30 02:36:19,943 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-01-30 02:36:19,953 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-30 02:36:19,954 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-30 02:36:19,955 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-30 02:36:19,955 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-30 02:36:19,955 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-30 02:36:19,955 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-30 02:36:19,955 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-30 02:36:19,956 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-30 02:36:19,956 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-30 02:36:19,957 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-30 02:36:19,957 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-30 02:36:19,957 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-30 02:36:19,957 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-30 02:36:19,957 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-30 02:36:19,958 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-30 02:36:19,958 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-30 02:36:19,958 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-30 02:36:19,958 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-30 02:36:19,958 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-30 02:36:19,959 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-30 02:36:19,959 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-30 02:36:19,959 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-30 02:36:19,959 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-30 02:36:19,959 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-30 02:36:19,960 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-30 02:36:19,960 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-30 02:36:19,960 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-30 02:36:19,960 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-30 02:36:19,960 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-30 02:36:19,961 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-30 02:36:19,961 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-30 02:36:19,961 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-30 02:36:19,962 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-30 02:36:19,962 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-30 02:36:19,999 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-30 02:36:20,018 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-30 02:36:20,024 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-30 02:36:20,027 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-30 02:36:20,028 INFO L276 PluginConnector]: CDTParser initialized [2018-01-30 02:36:20,028 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero3_false-valid-deref-write.c [2018-01-30 02:36:20,173 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-30 02:36:20,184 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-01-30 02:36:20,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-30 02:36:20,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-30 02:36:20,194 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-30 02:36:20,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:36:20" (1/1) ... [2018-01-30 02:36:20,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7229ac5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:36:20, skipping insertion in model container [2018-01-30 02:36:20,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:36:20" (1/1) ... [2018-01-30 02:36:20,225 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 02:36:20,250 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 02:36:20,393 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 02:36:20,408 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 02:36:20,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:36:20 WrapperNode [2018-01-30 02:36:20,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-30 02:36:20,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-30 02:36:20,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-30 02:36:20,418 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-30 02:36:20,435 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:36:20" (1/1) ... [2018-01-30 02:36:20,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:36:20" (1/1) ... [2018-01-30 02:36:20,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:36:20" (1/1) ... [2018-01-30 02:36:20,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:36:20" (1/1) ... [2018-01-30 02:36:20,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:36:20" (1/1) ... [2018-01-30 02:36:20,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:36:20" (1/1) ... [2018-01-30 02:36:20,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:36:20" (1/1) ... [2018-01-30 02:36:20,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-30 02:36:20,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-30 02:36:20,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-30 02:36:20,456 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-30 02:36:20,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:36:20" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-30 02:36:20,514 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-30 02:36:20,514 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-30 02:36:20,514 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-30 02:36:20,515 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-30 02:36:20,515 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-30 02:36:20,515 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-30 02:36:20,515 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-01-30 02:36:20,515 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-01-30 02:36:20,515 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-01-30 02:36:20,515 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-30 02:36:20,515 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-30 02:36:20,515 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-30 02:36:20,599 WARN L455 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-01-30 02:36:20,663 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-30 02:36:20,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:36:20 BoogieIcfgContainer [2018-01-30 02:36:20,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-30 02:36:20,664 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-01-30 02:36:20,664 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-01-30 02:36:20,665 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-01-30 02:36:20,668 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:36:20" (1/1) ... [2018-01-30 02:36:20,678 INFO L103 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-01-30 02:36:20,679 INFO L104 apSepIcfgTransformer]: To be partitioned heap arrays found [] [2018-01-30 02:36:20,680 INFO L150 apSepIcfgTransformer]: starting freeze-var-style preprocessing [2018-01-30 02:36:20,708 INFO L162 apSepIcfgTransformer]: finished StoreIndexFreezer, created 3 freeze vars and freeze var literals (each corresponds to one heap write) [2018-01-30 02:36:20,726 INFO L221 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-01-30 02:36:20,789 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-30 02:36:21,545 INFO L311 AbstractInterpreter]: Visited 31 different actions 43 times. Merged at 10 different actions 10 times. Never widened. Found 2 fixpoints after 2 different actions. Largest state had 24 variables. [2018-01-30 02:36:21,547 INFO L229 apSepIcfgTransformer]: finished equality analysis [2018-01-30 02:36:21,559 INFO L241 apSepIcfgTransformer]: Finished pre analysis before partitioning [2018-01-30 02:36:21,559 INFO L242 apSepIcfgTransformer]: array groups: Set: [2018-01-30 02:36:21,559 INFO L244 apSepIcfgTransformer]: select infos: Set: [2018-01-30 02:36:21,561 INFO L547 PartitionManager]: partitioning result: [2018-01-30 02:36:21,562 INFO L86 ransitionTransformer]: executing heap partitioning transformation [2018-01-30 02:36:21,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 30.01 02:36:21 BasicIcfg [2018-01-30 02:36:21,570 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-01-30 02:36:21,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-30 02:36:21,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-30 02:36:21,575 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-30 02:36:21,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:36:20" (1/4) ... [2018-01-30 02:36:21,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b85e57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:36:21, skipping insertion in model container [2018-01-30 02:36:21,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:36:20" (2/4) ... [2018-01-30 02:36:21,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b85e57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:36:21, skipping insertion in model container [2018-01-30 02:36:21,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:36:20" (3/4) ... [2018-01-30 02:36:21,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b85e57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 02:36:21, skipping insertion in model container [2018-01-30 02:36:21,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 30.01 02:36:21" (4/4) ... [2018-01-30 02:36:21,579 INFO L107 eAbstractionObserver]: Analyzing ICFG HeapSeparatedIcfg [2018-01-30 02:36:21,589 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-30 02:36:21,598 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-30 02:36:21,643 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-30 02:36:21,643 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-30 02:36:21,643 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-30 02:36:21,643 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-30 02:36:21,643 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-30 02:36:21,644 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-30 02:36:21,644 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-30 02:36:21,644 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-30 02:36:21,645 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-30 02:36:21,661 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-01-30 02:36:21,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-01-30 02:36:21,668 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 02:36:21,669 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-01-30 02:36:21,669 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 02:36:21,674 INFO L82 PathProgramCache]: Analyzing trace with hash 296383023, now seen corresponding path program 1 times [2018-01-30 02:36:21,734 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 02:36:21,735 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 02:36:21,795 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 02:36:21,795 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 02:36:21,796 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 02:36:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 02:36:21,843 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 02:36:21,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 02:36:21,916 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 02:36:21,916 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-30 02:36:21,918 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-30 02:36:21,929 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-30 02:36:21,930 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-30 02:36:21,932 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 4 states. [2018-01-30 02:36:22,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 02:36:22,120 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2018-01-30 02:36:22,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-30 02:36:22,122 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-01-30 02:36:22,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 02:36:22,154 INFO L225 Difference]: With dead ends: 28 [2018-01-30 02:36:22,154 INFO L226 Difference]: Without dead ends: 24 [2018-01-30 02:36:22,161 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-30 02:36:22,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-01-30 02:36:22,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-01-30 02:36:22,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-01-30 02:36:22,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2018-01-30 02:36:22,224 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 6 [2018-01-30 02:36:22,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 02:36:22,237 INFO L432 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2018-01-30 02:36:22,237 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-30 02:36:22,237 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-01-30 02:36:22,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-01-30 02:36:22,238 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 02:36:22,238 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-01-30 02:36:22,238 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 02:36:22,239 INFO L82 PathProgramCache]: Analyzing trace with hash 296383025, now seen corresponding path program 1 times [2018-01-30 02:36:22,239 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 02:36:22,239 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 02:36:22,240 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 02:36:22,244 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 02:36:22,244 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 02:36:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-30 02:36:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-30 02:36:22,294 INFO L409 BasicCegarLoop]: Counterexample might be feasible [2018-01-30 02:36:22,298 INFO L84 mationBacktranslator]: Skipped ATE [125] [125] ULTIMATE.startENTRY-->L1: Formula: true InVars {} OutVars{#NULL.offset=|v_#NULL.offset_2|, #NULL.base=|v_#NULL.base_2|, #valid=|v_#valid_4|} AuxVars[] AssignedVars[#valid, #NULL.offset, #NULL.base] [2018-01-30 02:36:22,298 INFO L84 mationBacktranslator]: Skipped ATE [131] [131] L1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-01-30 02:36:22,298 INFO L84 mationBacktranslator]: Skipped ATE [137] [137] mainENTRY-->L26: Formula: (and (= (store |v_#valid_9| |v_main_~#cstats~2.base_1| 1) |v_#valid_8|) (= |v_main_~#cstats~2.offset_1| 0) (= 0 (select |v_#valid_9| |v_main_~#cstats~2.base_1|)) (not (= 0 |v_main_~#cstats~2.base_1|)) (= |v_#length_4| (store |v_#length_5| |v_main_~#cstats~2.base_1| 80))) InVars {#length=|v_#length_5|, #valid=|v_#valid_9|} OutVars{main_~#cstats~2.offset=|v_main_~#cstats~2.offset_1|, #length=|v_#length_4|, main_~#cstats~2.base=|v_main_~#cstats~2.base_1|, #valid=|v_#valid_8|} AuxVars[] AssignedVars[main_~#cstats~2.offset, main_~#cstats~2.base, #valid, #length] [2018-01-30 02:36:22,298 INFO L84 mationBacktranslator]: Skipped ATE [141] [141] L26-->L28: Formula: true InVars {} OutVars{main_~point~2.offset=v_main_~point~2.offset_1, main_~point~2.base=v_main_~point~2.base_1} AuxVars[] AssignedVars[main_~point~2.offset, main_~point~2.base] [2018-01-30 02:36:22,299 INFO L84 mationBacktranslator]: Skipped ATE [145] [145] L28-->L29: Formula: (and (= v_main_~point~2.base_2 |v_main_~#cstats~2.base_2|) (= v_main_~point~2.offset_2 |v_main_~#cstats~2.offset_2|)) InVars {main_~#cstats~2.offset=|v_main_~#cstats~2.offset_2|, main_~#cstats~2.base=|v_main_~#cstats~2.base_2|} OutVars{main_~#cstats~2.offset=|v_main_~#cstats~2.offset_2|, main_~#cstats~2.base=|v_main_~#cstats~2.base_2|, main_~point~2.offset=v_main_~point~2.offset_2, main_~point~2.base=v_main_~point~2.base_2} AuxVars[] AssignedVars[main_~point~2.offset, main_~point~2.base] [2018-01-30 02:36:22,299 INFO L84 mationBacktranslator]: Skipped ATE [151] [151] L29-->mainErr1RequiresViolation: Formula: (or (not (<= 0 v_main_~point~2.offset_4)) (not (<= (+ v_main_~point~2.offset_4 81) (select |v_#length_7| v_main_~point~2.base_5)))) InVars {#length=|v_#length_7|, main_~point~2.offset=v_main_~point~2.offset_4, main_~point~2.base=v_main_~point~2.base_5} OutVars{#length=|v_#length_7|, main_~point~2.offset=v_main_~point~2.offset_4, main_~point~2.base=v_main_~point~2.base_5} AuxVars[] AssignedVars[] [2018-01-30 02:36:22,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 02:36:22 BasicIcfg [2018-01-30 02:36:22,303 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-30 02:36:22,304 INFO L168 Benchmark]: Toolchain (without parser) took 2129.87 ms. Allocated memory was 307.2 MB in the beginning and 473.4 MB in the end (delta: 166.2 MB). Free memory was 266.1 MB in the beginning and 435.2 MB in the end (delta: -169.1 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 02:36:22,304 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 307.2 MB. Free memory is still 271.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 02:36:22,305 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.98 ms. Allocated memory is still 307.2 MB. Free memory was 265.1 MB in the beginning and 257.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 5.3 GB. [2018-01-30 02:36:22,305 INFO L168 Benchmark]: Boogie Preprocessor took 38.94 ms. Allocated memory is still 307.2 MB. Free memory was 257.1 MB in the beginning and 256.1 MB in the end (delta: 996.2 kB). Peak memory consumption was 996.2 kB. Max. memory is 5.3 GB. [2018-01-30 02:36:22,306 INFO L168 Benchmark]: RCFGBuilder took 208.14 ms. Allocated memory is still 307.2 MB. Free memory was 256.1 MB in the beginning and 242.8 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 5.3 GB. [2018-01-30 02:36:22,306 INFO L168 Benchmark]: IcfgTransformer took 905.86 ms. Allocated memory was 307.2 MB in the beginning and 327.7 MB in the end (delta: 20.4 MB). Free memory was 242.8 MB in the beginning and 217.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 45.6 MB. Max. memory is 5.3 GB. [2018-01-30 02:36:22,306 INFO L168 Benchmark]: TraceAbstraction took 732.13 ms. Allocated memory was 327.7 MB in the beginning and 473.4 MB in the end (delta: 145.8 MB). Free memory was 217.6 MB in the beginning and 435.2 MB in the end (delta: -217.5 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 02:36:22,311 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 307.2 MB. Free memory is still 271.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 230.98 ms. Allocated memory is still 307.2 MB. Free memory was 265.1 MB in the beginning and 257.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 38.94 ms. Allocated memory is still 307.2 MB. Free memory was 257.1 MB in the beginning and 256.1 MB in the end (delta: 996.2 kB). Peak memory consumption was 996.2 kB. Max. memory is 5.3 GB. * RCFGBuilder took 208.14 ms. Allocated memory is still 307.2 MB. Free memory was 256.1 MB in the beginning and 242.8 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 5.3 GB. * IcfgTransformer took 905.86 ms. Allocated memory was 307.2 MB in the beginning and 327.7 MB in the end (delta: 20.4 MB). Free memory was 242.8 MB in the beginning and 217.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 45.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 732.13 ms. Allocated memory was 327.7 MB in the beginning and 473.4 MB in the end (delta: 145.8 MB). Free memory was 217.6 MB in the beginning and 435.2 MB in the end (delta: -217.5 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 26 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 264 LocStat_NO_SUPPORTING_DISEQUALITIES : 99 LocStat_NO_DISJUNCTIONS : -52 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 40 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 66 TransStat_NO_SUPPORTING_DISEQUALITIES : 6 TransStat_NO_DISJUNCTIONS : 41 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 6.474390 RENAME_VARIABLES(MILLISECONDS) : 0.037653 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 6.045163 PROJECTAWAY(MILLISECONDS) : 0.099860 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.227098 DISJOIN(MILLISECONDS) : 1.807625 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.089159 ADD_EQUALITY(MILLISECONDS) : 0.019959 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.021933 #CONJOIN_DISJUNCTIVE : 64 #RENAME_VARIABLES : 114 #UNFREEZE : 0 #CONJOIN : 116 #PROJECTAWAY : 105 #ADD_WEAK_EQUALITY : 4 #DISJOIN : 4 #RENAME_VARIABLES_DISJUNCTIVE : 113 #ADD_EQUALITY : 66 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 3 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: HeapSeparatorStatistics * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 3 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 26 SDtfs, 9 SDslu, 27 SDs, 0 SdLazy, 23 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 85 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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/memsetNonZero3_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-Benchmark-0-2018-01-30_02-36-22-321.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero3_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-VPDomainBenchmark-0-2018-01-30_02-36-22-321.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero3_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-BenchmarkWithCounters-0-2018-01-30_02-36-22-321.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero3_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-HeapSeparatorBenchmark-0-2018-01-30_02-36-22-321.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero3_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-30_02-36-22-321.csv Received shutdown request...