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_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cceb4a [2018-01-29 23:52:31,814 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-29 23:52:31,817 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-29 23:52:31,831 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-29 23:52:31,832 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-29 23:52:31,833 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-29 23:52:31,834 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-29 23:52:31,835 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-29 23:52:31,837 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-29 23:52:31,838 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-29 23:52:31,838 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-29 23:52:31,839 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-29 23:52:31,840 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-29 23:52:31,841 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-29 23:52:31,842 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-29 23:52:31,844 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-29 23:52:31,846 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-29 23:52:31,848 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-29 23:52:31,849 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-29 23:52:31,851 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-29 23:52:31,853 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-29 23:52:31,853 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-29 23:52:31,853 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-29 23:52:31,854 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-29 23:52:31,855 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-29 23:52:31,857 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-29 23:52:31,857 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-29 23:52:31,857 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-29 23:52:31,858 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-29 23:52:31,858 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-29 23:52:31,859 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-29 23:52:31,859 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 [2018-01-29 23:52:31,869 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-29 23:52:31,869 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-29 23:52:31,870 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-29 23:52:31,870 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-29 23:52:31,870 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-29 23:52:31,871 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-29 23:52:31,871 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-29 23:52:31,871 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-29 23:52:31,872 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-29 23:52:31,872 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-29 23:52:31,872 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-29 23:52:31,872 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-29 23:52:31,872 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-29 23:52:31,873 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-29 23:52:31,873 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-29 23:52:31,873 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-29 23:52:31,873 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-29 23:52:31,873 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-29 23:52:31,874 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-29 23:52:31,874 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-29 23:52:31,874 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-29 23:52:31,874 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-29 23:52:31,874 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-29 23:52:31,875 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-29 23:52:31,875 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-29 23:52:31,875 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-29 23:52:31,875 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-29 23:52:31,876 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-29 23:52:31,876 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-29 23:52:31,876 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-29 23:52:31,876 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-29 23:52:31,876 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-29 23:52:31,877 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-29 23:52:31,877 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-29 23:52:31,911 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-29 23:52:31,924 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-29 23:52:31,928 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-29 23:52:31,929 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-29 23:52:31,930 INFO L276 PluginConnector]: CDTParser initialized [2018-01-29 23:52:31,931 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero_false-valid-deref-write.c [2018-01-29 23:52:32,032 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-29 23:52:32,037 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-29 23:52:32,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-29 23:52:32,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-29 23:52:32,043 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-29 23:52:32,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 11:52:32" (1/1) ... [2018-01-29 23:52:32,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55515a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:52:32, skipping insertion in model container [2018-01-29 23:52:32,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 11:52:32" (1/1) ... [2018-01-29 23:52:32,060 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-29 23:52:32,074 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-29 23:52:32,182 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-29 23:52:32,197 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-29 23:52:32,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:52:32 WrapperNode [2018-01-29 23:52:32,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-29 23:52:32,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-29 23:52:32,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-29 23:52:32,203 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-29 23:52:32,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:52:32" (1/1) ... [2018-01-29 23:52:32,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:52:32" (1/1) ... [2018-01-29 23:52:32,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:52:32" (1/1) ... [2018-01-29 23:52:32,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:52:32" (1/1) ... [2018-01-29 23:52:32,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:52:32" (1/1) ... [2018-01-29 23:52:32,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:52:32" (1/1) ... [2018-01-29 23:52:32,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:52:32" (1/1) ... [2018-01-29 23:52:32,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-29 23:52:32,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-29 23:52:32,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-29 23:52:32,231 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-29 23:52:32,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:52:32" (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 [2018-01-29 23:52:32,285 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-29 23:52:32,285 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-29 23:52:32,285 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-29 23:52:32,286 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-29 23:52:32,286 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-29 23:52:32,286 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-29 23:52:32,286 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-01-29 23:52:32,286 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-01-29 23:52:32,286 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-01-29 23:52:32,286 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-29 23:52:32,286 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-29 23:52:32,286 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-29 23:52:32,358 WARN L455 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-01-29 23:52:32,419 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-29 23:52:32,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 11:52:32 BoogieIcfgContainer [2018-01-29 23:52:32,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-29 23:52:32,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-29 23:52:32,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-29 23:52:32,423 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-29 23:52:32,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 11:52:32" (1/3) ... [2018-01-29 23:52:32,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57db2547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 11:52:32, skipping insertion in model container [2018-01-29 23:52:32,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:52:32" (2/3) ... [2018-01-29 23:52:32,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57db2547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 11:52:32, skipping insertion in model container [2018-01-29 23:52:32,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 11:52:32" (3/3) ... [2018-01-29 23:52:32,425 INFO L107 eAbstractionObserver]: Analyzing ICFG memsetNonZero_false-valid-deref-write.c [2018-01-29 23:52:32,432 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-29 23:52:32,439 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-29 23:52:32,473 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-29 23:52:32,473 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-29 23:52:32,474 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-29 23:52:32,474 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-29 23:52:32,474 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-29 23:52:32,474 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-29 23:52:32,474 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-29 23:52:32,474 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-29 23:52:32,475 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-29 23:52:32,488 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-01-29 23:52:32,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-29 23:52:32,495 INFO L342 BasicCegarLoop]: Found error trace [2018-01-29 23:52:32,496 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-29 23:52:32,497 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-29 23:52:32,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1964876918, now seen corresponding path program 1 times [2018-01-29 23:52:32,505 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-29 23:52:32,505 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-29 23:52:32,551 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:52:32,551 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-29 23:52:32,552 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:52:32,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-29 23:52:32,601 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-29 23:52:32,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-29 23:52:32,665 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-29 23:52:32,665 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-29 23:52:32,666 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-29 23:52:32,677 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-29 23:52:32,677 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-29 23:52:32,679 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2018-01-29 23:52:32,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-29 23:52:32,730 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-01-29 23:52:32,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-29 23:52:32,733 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-01-29 23:52:32,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-29 23:52:32,747 INFO L225 Difference]: With dead ends: 26 [2018-01-29 23:52:32,748 INFO L226 Difference]: Without dead ends: 22 [2018-01-29 23:52:32,752 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 [2018-01-29 23:52:32,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-01-29 23:52:32,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-01-29 23:52:32,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-01-29 23:52:32,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-01-29 23:52:32,864 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 8 [2018-01-29 23:52:32,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-29 23:52:32,864 INFO L432 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-01-29 23:52:32,864 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-29 23:52:32,865 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-01-29 23:52:32,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-29 23:52:32,865 INFO L342 BasicCegarLoop]: Found error trace [2018-01-29 23:52:32,865 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-29 23:52:32,865 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-29 23:52:32,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1964876917, now seen corresponding path program 1 times [2018-01-29 23:52:32,866 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-29 23:52:32,866 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-29 23:52:32,867 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:52:32,867 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-29 23:52:32,867 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:52:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-29 23:52:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-29 23:52:32,915 INFO L409 BasicCegarLoop]: Counterexample might be feasible [2018-01-29 23:52:32,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 11:52:32 BoogieIcfgContainer [2018-01-29 23:52:32,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-29 23:52:32,935 INFO L168 Benchmark]: Toolchain (without parser) took 902.63 ms. Allocated memory was 301.5 MB in the beginning and 460.3 MB in the end (delta: 158.9 MB). Free memory was 262.5 MB in the beginning and 430.1 MB in the end (delta: -167.6 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-29 23:52:32,936 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 301.5 MB. Free memory is still 267.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-29 23:52:32,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.38 ms. Allocated memory is still 301.5 MB. Free memory was 261.5 MB in the beginning and 253.5 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 5.3 GB. [2018-01-29 23:52:32,937 INFO L168 Benchmark]: Boogie Preprocessor took 27.23 ms. Allocated memory is still 301.5 MB. Free memory was 253.5 MB in the beginning and 252.5 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-01-29 23:52:32,938 INFO L168 Benchmark]: RCFGBuilder took 189.20 ms. Allocated memory is still 301.5 MB. Free memory was 252.5 MB in the beginning and 239.6 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 5.3 GB. [2018-01-29 23:52:32,939 INFO L168 Benchmark]: TraceAbstraction took 514.03 ms. Allocated memory was 301.5 MB in the beginning and 460.3 MB in the end (delta: 158.9 MB). Free memory was 239.6 MB in the beginning and 430.1 MB in the end (delta: -190.5 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-29 23:52:32,941 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 301.5 MB. Free memory is still 267.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 164.38 ms. Allocated memory is still 301.5 MB. Free memory was 261.5 MB in the beginning and 253.5 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 27.23 ms. Allocated memory is still 301.5 MB. Free memory was 253.5 MB in the beginning and 252.5 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 189.20 ms. Allocated memory is still 301.5 MB. Free memory was 252.5 MB in the beginning and 239.6 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 514.03 ms. Allocated memory was 301.5 MB in the beginning and 460.3 MB in the end (delta: 158.9 MB). Free memory was 239.6 MB in the beginning and 430.1 MB in the end (delta: -190.5 MB). There was no memory consumed. Max. memory is 5.3 GB. * 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: [L26] FCALL struct ppp_comp_stats cstats ; VAL [cstats={83:0}] [L27] FCALL memset((void *)(& cstats), 10, 81UL) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 3 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 SDtfs, 3 SDslu, 13 SDs, 0 SdLazy, 9 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, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 77 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/memsetNonZero_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-29_23-52-32-953.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-29_23-52-32-953.csv Received shutdown request...