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/memsetNonZero2_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cceb4a [2018-01-30 02:36:16,790 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-30 02:36:16,793 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-30 02:36:16,811 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-30 02:36:16,812 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-30 02:36:16,813 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-30 02:36:16,815 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-30 02:36:16,817 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-30 02:36:16,820 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-30 02:36:16,821 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-30 02:36:16,822 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-30 02:36:16,822 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-30 02:36:16,823 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-30 02:36:16,825 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-30 02:36:16,827 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-30 02:36:16,839 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-30 02:36:16,842 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-30 02:36:16,845 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-30 02:36:16,846 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-30 02:36:16,847 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-30 02:36:16,850 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-30 02:36:16,852 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-30 02:36:16,853 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-30 02:36:16,854 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-30 02:36:16,855 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-30 02:36:16,856 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-30 02:36:16,856 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-30 02:36:16,857 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-30 02:36:16,857 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-30 02:36:16,858 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-30 02:36:16,858 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-30 02:36:16,859 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 02:36:16,882 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-30 02:36:16,882 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-30 02:36:16,883 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-30 02:36:16,883 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-30 02:36:16,883 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-30 02:36:16,883 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-30 02:36:16,884 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-30 02:36:16,885 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-30 02:36:16,885 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-30 02:36:16,885 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-30 02:36:16,886 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-30 02:36:16,886 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-30 02:36:16,886 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-30 02:36:16,886 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-30 02:36:16,886 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-30 02:36:16,887 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-30 02:36:16,887 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-30 02:36:16,887 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-30 02:36:16,887 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-30 02:36:16,887 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-30 02:36:16,887 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-30 02:36:16,888 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-30 02:36:16,888 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-30 02:36:16,889 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-30 02:36:16,890 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-30 02:36:16,890 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-30 02:36:16,890 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-30 02:36:16,890 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-30 02:36:16,890 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-30 02:36:16,891 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-30 02:36:16,891 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-30 02:36:16,891 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-30 02:36:16,892 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-30 02:36:16,892 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-30 02:36:16,951 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-30 02:36:16,970 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-30 02:36:16,975 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-30 02:36:16,976 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-30 02:36:16,978 INFO L276 PluginConnector]: CDTParser initialized [2018-01-30 02:36:16,979 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero2_false-valid-deref-write.c [2018-01-30 02:36:17,108 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-30 02:36:17,113 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-01-30 02:36:17,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-30 02:36:17,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-30 02:36:17,121 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-30 02:36:17,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:36:17" (1/1) ... [2018-01-30 02:36:17,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1993a5c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:36:17, skipping insertion in model container [2018-01-30 02:36:17,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:36:17" (1/1) ... [2018-01-30 02:36:17,142 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 02:36:17,157 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 02:36:17,261 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 02:36:17,275 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 02:36:17,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:36:17 WrapperNode [2018-01-30 02:36:17,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-30 02:36:17,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-30 02:36:17,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-30 02:36:17,282 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-30 02:36:17,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:36:17" (1/1) ... [2018-01-30 02:36:17,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:36:17" (1/1) ... [2018-01-30 02:36:17,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:36:17" (1/1) ... [2018-01-30 02:36:17,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:36:17" (1/1) ... [2018-01-30 02:36:17,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:36:17" (1/1) ... [2018-01-30 02:36:17,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:36:17" (1/1) ... [2018-01-30 02:36:17,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:36:17" (1/1) ... [2018-01-30 02:36:17,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-30 02:36:17,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-30 02:36:17,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-30 02:36:17,321 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-30 02:36:17,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:36:17" (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 02:36:17,373 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-30 02:36:17,374 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-30 02:36:17,374 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-30 02:36:17,374 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-30 02:36:17,374 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-30 02:36:17,374 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-30 02:36:17,375 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-01-30 02:36:17,375 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-01-30 02:36:17,375 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-01-30 02:36:17,375 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-30 02:36:17,375 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-30 02:36:17,375 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-30 02:36:17,459 WARN L455 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-01-30 02:36:17,550 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-30 02:36:17,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:36:17 BoogieIcfgContainer [2018-01-30 02:36:17,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-30 02:36:17,551 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-01-30 02:36:17,551 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-01-30 02:36:17,552 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-01-30 02:36:17,555 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:36:17" (1/1) ... [2018-01-30 02:36:17,563 INFO L103 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-01-30 02:36:17,563 INFO L104 apSepIcfgTransformer]: To be partitioned heap arrays found [] [2018-01-30 02:36:17,563 INFO L150 apSepIcfgTransformer]: starting freeze-var-style preprocessing [2018-01-30 02:36:17,588 INFO L162 apSepIcfgTransformer]: finished StoreIndexFreezer, created 3 freeze vars and freeze var literals (each corresponds to one heap write) [2018-01-30 02:36:17,610 INFO L221 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-01-30 02:36:17,676 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-30 02:36:18,326 INFO L311 AbstractInterpreter]: Visited 29 different actions 41 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 02:36:18,328 INFO L229 apSepIcfgTransformer]: finished equality analysis [2018-01-30 02:36:18,337 INFO L241 apSepIcfgTransformer]: Finished pre analysis before partitioning [2018-01-30 02:36:18,337 INFO L242 apSepIcfgTransformer]: array groups: Set: [2018-01-30 02:36:18,337 INFO L244 apSepIcfgTransformer]: select infos: Set: [2018-01-30 02:36:18,339 INFO L547 PartitionManager]: partitioning result: [2018-01-30 02:36:18,339 INFO L86 ransitionTransformer]: executing heap partitioning transformation [2018-01-30 02:36:18,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 30.01 02:36:18 BasicIcfg [2018-01-30 02:36:18,347 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-01-30 02:36:18,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-30 02:36:18,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-30 02:36:18,351 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-30 02:36:18,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:36:17" (1/4) ... [2018-01-30 02:36:18,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4930fe05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:36:18, skipping insertion in model container [2018-01-30 02:36:18,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:36:17" (2/4) ... [2018-01-30 02:36:18,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4930fe05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:36:18, skipping insertion in model container [2018-01-30 02:36:18,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:36:17" (3/4) ... [2018-01-30 02:36:18,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4930fe05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 02:36:18, skipping insertion in model container [2018-01-30 02:36:18,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 30.01 02:36:18" (4/4) ... [2018-01-30 02:36:18,355 INFO L107 eAbstractionObserver]: Analyzing ICFG HeapSeparatedIcfg [2018-01-30 02:36:18,362 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-30 02:36:18,370 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-30 02:36:18,402 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-30 02:36:18,402 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-30 02:36:18,402 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-30 02:36:18,402 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-30 02:36:18,402 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-30 02:36:18,402 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-30 02:36:18,403 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-30 02:36:18,403 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-30 02:36:18,403 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-30 02:36:18,413 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-01-30 02:36:18,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-01-30 02:36:18,418 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 02:36:18,419 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-01-30 02:36:18,419 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 02:36:18,424 INFO L82 PathProgramCache]: Analyzing trace with hash 4531405, now seen corresponding path program 1 times [2018-01-30 02:36:18,425 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 02:36:18,426 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 02:36:18,523 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 02:36:18,523 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 02:36:18,523 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 02:36:18,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 02:36:18,563 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 02:36:18,604 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 02:36:18,606 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 02:36:18,606 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-30 02:36:18,607 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-30 02:36:18,614 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-30 02:36:18,615 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-30 02:36:18,617 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2018-01-30 02:36:18,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 02:36:18,684 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2018-01-30 02:36:18,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-30 02:36:18,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-01-30 02:36:18,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 02:36:18,695 INFO L225 Difference]: With dead ends: 26 [2018-01-30 02:36:18,695 INFO L226 Difference]: Without dead ends: 22 [2018-01-30 02:36:18,698 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-30 02:36:18,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-01-30 02:36:18,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-01-30 02:36:18,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-01-30 02:36:18,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2018-01-30 02:36:18,733 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 4 [2018-01-30 02:36:18,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 02:36:18,735 INFO L432 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2018-01-30 02:36:18,735 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-30 02:36:18,735 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-01-30 02:36:18,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-01-30 02:36:18,736 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 02:36:18,736 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-01-30 02:36:18,736 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 02:36:18,736 INFO L82 PathProgramCache]: Analyzing trace with hash 4531407, now seen corresponding path program 1 times [2018-01-30 02:36:18,737 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 02:36:18,737 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 02:36:18,738 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 02:36:18,738 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 02:36:18,738 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 02:36:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-30 02:36:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-30 02:36:18,782 INFO L409 BasicCegarLoop]: Counterexample might be feasible [2018-01-30 02:36:18,785 INFO L84 mationBacktranslator]: Skipped ATE [117] [117] 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 02:36:18,785 INFO L84 mationBacktranslator]: Skipped ATE [123] [123] L1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] [2018-01-30 02:36:18,786 INFO L84 mationBacktranslator]: Skipped ATE [129] [129] mainENTRY-->L21: 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|)) (= (store |v_#length_5| |v_main_~#cstats~2.base_1| 40) |v_#length_4|) (not (= 0 |v_main_~#cstats~2.base_1|))) 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 02:36:18,786 INFO L84 mationBacktranslator]: Skipped ATE [137] [137] L21-->mainErr1RequiresViolation: Formula: (or (not (<= 0 |v_main_~#cstats~2.offset_3|)) (not (<= (+ |v_main_~#cstats~2.offset_3| 41) (select |v_#length_7| |v_main_~#cstats~2.base_4|)))) InVars {main_~#cstats~2.offset=|v_main_~#cstats~2.offset_3|, #length=|v_#length_7|, main_~#cstats~2.base=|v_main_~#cstats~2.base_4|} OutVars{main_~#cstats~2.offset=|v_main_~#cstats~2.offset_3|, #length=|v_#length_7|, main_~#cstats~2.base=|v_main_~#cstats~2.base_4|} AuxVars[] AssignedVars[] [2018-01-30 02:36:18,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 02:36:18 BasicIcfg [2018-01-30 02:36:18,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-30 02:36:18,791 INFO L168 Benchmark]: Toolchain (without parser) took 1683.13 ms. Allocated memory was 300.4 MB in the beginning and 472.4 MB in the end (delta: 172.0 MB). Free memory was 261.1 MB in the beginning and 436.4 MB in the end (delta: -175.3 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 02:36:18,792 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 300.4 MB. Free memory is still 265.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 02:36:18,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.08 ms. Allocated memory is still 300.4 MB. Free memory was 259.1 MB in the beginning and 251.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 5.3 GB. [2018-01-30 02:36:18,792 INFO L168 Benchmark]: Boogie Preprocessor took 37.95 ms. Allocated memory is still 300.4 MB. Free memory is still 251.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 02:36:18,793 INFO L168 Benchmark]: RCFGBuilder took 230.26 ms. Allocated memory is still 300.4 MB. Free memory was 251.2 MB in the beginning and 238.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 5.3 GB. [2018-01-30 02:36:18,793 INFO L168 Benchmark]: IcfgTransformer took 796.43 ms. Allocated memory was 300.4 MB in the beginning and 328.2 MB in the end (delta: 27.8 MB). Free memory was 238.2 MB in the beginning and 231.9 MB in the end (delta: 6.3 MB). Peak memory consumption was 34.1 MB. Max. memory is 5.3 GB. [2018-01-30 02:36:18,793 INFO L168 Benchmark]: TraceAbstraction took 442.50 ms. Allocated memory was 328.2 MB in the beginning and 472.4 MB in the end (delta: 144.2 MB). Free memory was 231.9 MB in the beginning and 436.4 MB in the end (delta: -204.4 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 02:36:18,795 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 300.4 MB. Free memory is still 265.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 168.08 ms. Allocated memory is still 300.4 MB. Free memory was 259.1 MB in the beginning and 251.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 37.95 ms. Allocated memory is still 300.4 MB. Free memory is still 251.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 230.26 ms. Allocated memory is still 300.4 MB. Free memory was 251.2 MB in the beginning and 238.2 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 5.3 GB. * IcfgTransformer took 796.43 ms. Allocated memory was 300.4 MB in the beginning and 328.2 MB in the end (delta: 27.8 MB). Free memory was 238.2 MB in the beginning and 231.9 MB in the end (delta: 6.3 MB). Peak memory consumption was 34.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 442.50 ms. Allocated memory was 328.2 MB in the beginning and 472.4 MB in the end (delta: 144.2 MB). Free memory was 231.9 MB in the beginning and 436.4 MB in the end (delta: -204.4 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 : 24 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 221 LocStat_NO_SUPPORTING_DISEQUALITIES : 85 LocStat_NO_DISJUNCTIONS : -48 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 38 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 64 TransStat_NO_SUPPORTING_DISEQUALITIES : 6 TransStat_NO_DISJUNCTIONS : 39 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 8.074680 RENAME_VARIABLES(MILLISECONDS) : 0.025495 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 7.745248 PROJECTAWAY(MILLISECONDS) : 0.099146 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.205286 DISJOIN(MILLISECONDS) : 0.622612 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.044042 ADD_EQUALITY(MILLISECONDS) : 0.057625 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.017538 #CONJOIN_DISJUNCTIVE : 61 #RENAME_VARIABLES : 110 #UNFREEZE : 0 #CONJOIN : 113 #PROJECTAWAY : 101 #ADD_WEAK_EQUALITY : 4 #DISJOIN : 4 #RENAME_VARIABLES_DISJUNCTIVE : 109 #ADD_EQUALITY : 64 #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, 26 locations, 3 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 25 SDtfs, 4 SDslu, 13 SDs, 0 SdLazy, 12 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 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/memsetNonZero2_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-Benchmark-0-2018-01-30_02-36-18-808.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero2_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-VPDomainBenchmark-0-2018-01-30_02-36-18-808.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero2_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-BenchmarkWithCounters-0-2018-01-30_02-36-18-808.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero2_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-HeapSeparatorBenchmark-0-2018-01-30_02-36-18-808.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero2_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-30_02-36-18-808.csv Received shutdown request...