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/memsetNonZero3_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-5f7ec6e [2018-01-31 09:04:28,720 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-31 09:04:28,722 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-31 09:04:28,737 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-31 09:04:28,737 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-31 09:04:28,738 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-31 09:04:28,739 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-31 09:04:28,741 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-31 09:04:28,744 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-31 09:04:28,744 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-31 09:04:28,754 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-31 09:04:28,755 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-31 09:04:28,756 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-31 09:04:28,757 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-31 09:04:28,758 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-31 09:04:28,760 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-31 09:04:28,762 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-31 09:04:28,769 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-31 09:04:28,770 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-31 09:04:28,771 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-31 09:04:28,776 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-31 09:04:28,777 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-31 09:04:28,777 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-31 09:04:28,778 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-31 09:04:28,783 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-31 09:04:28,784 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-31 09:04:28,784 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-31 09:04:28,785 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-31 09:04:28,785 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-31 09:04:28,786 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-31 09:04:28,790 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-31 09:04:28,791 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 [2018-01-31 09:04:28,806 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-31 09:04:28,806 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-31 09:04:28,807 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-31 09:04:28,807 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-31 09:04:28,807 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-31 09:04:28,807 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-31 09:04:28,808 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-31 09:04:28,808 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-31 09:04:28,808 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-31 09:04:28,809 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-31 09:04:28,809 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-31 09:04:28,809 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-31 09:04:28,809 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-31 09:04:28,810 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-31 09:04:28,810 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-31 09:04:28,810 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-31 09:04:28,810 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-31 09:04:28,810 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-31 09:04:28,810 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-31 09:04:28,811 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-31 09:04:28,811 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-31 09:04:28,811 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-31 09:04:28,811 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-31 09:04:28,811 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-31 09:04:28,811 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-31 09:04:28,812 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-31 09:04:28,812 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-31 09:04:28,812 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-31 09:04:28,812 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-31 09:04:28,812 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-31 09:04:28,812 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-31 09:04:28,814 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-31 09:04:28,815 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-31 09:04:28,815 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-31 09:04:28,863 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-31 09:04:28,877 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-31 09:04:28,882 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-31 09:04:28,884 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-31 09:04:28,884 INFO L276 PluginConnector]: CDTParser initialized [2018-01-31 09:04:28,885 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero3_false-valid-deref-write.c [2018-01-31 09:04:28,998 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-31 09:04:29,009 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-31 09:04:29,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-31 09:04:29,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-31 09:04:29,017 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-31 09:04:29,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 09:04:28" (1/1) ... [2018-01-31 09:04:29,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e0b03db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:04:29, skipping insertion in model container [2018-01-31 09:04:29,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 09:04:28" (1/1) ... [2018-01-31 09:04:29,041 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-31 09:04:29,062 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-31 09:04:29,228 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-31 09:04:29,248 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-31 09:04:29,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:04:29 WrapperNode [2018-01-31 09:04:29,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-31 09:04:29,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-31 09:04:29,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-31 09:04:29,257 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-31 09:04:29,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:04:29" (1/1) ... [2018-01-31 09:04:29,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:04:29" (1/1) ... [2018-01-31 09:04:29,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:04:29" (1/1) ... [2018-01-31 09:04:29,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:04:29" (1/1) ... [2018-01-31 09:04:29,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:04:29" (1/1) ... [2018-01-31 09:04:29,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:04:29" (1/1) ... [2018-01-31 09:04:29,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:04:29" (1/1) ... [2018-01-31 09:04:29,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-31 09:04:29,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-31 09:04:29,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-31 09:04:29,297 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-31 09:04:29,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:04:29" (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 [2018-01-31 09:04:29,355 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-31 09:04:29,355 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-31 09:04:29,355 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-31 09:04:29,356 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-31 09:04:29,356 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-31 09:04:29,356 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-31 09:04:29,356 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-01-31 09:04:29,356 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-01-31 09:04:29,357 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-01-31 09:04:29,357 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-31 09:04:29,357 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-31 09:04:29,357 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-31 09:04:29,476 WARN L455 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-01-31 09:04:29,686 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-31 09:04:29,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:04:29 BoogieIcfgContainer [2018-01-31 09:04:29,687 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-31 09:04:29,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-31 09:04:29,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-31 09:04:29,691 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-31 09:04:29,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 09:04:28" (1/3) ... [2018-01-31 09:04:29,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3636b11e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 09:04:29, skipping insertion in model container [2018-01-31 09:04:29,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:04:29" (2/3) ... [2018-01-31 09:04:29,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3636b11e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 09:04:29, skipping insertion in model container [2018-01-31 09:04:29,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:04:29" (3/3) ... [2018-01-31 09:04:29,695 INFO L107 eAbstractionObserver]: Analyzing ICFG memsetNonZero3_false-valid-deref-write.c [2018-01-31 09:04:29,705 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-31 09:04:29,712 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-31 09:04:29,753 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-31 09:04:29,754 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-31 09:04:29,754 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-31 09:04:29,756 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-31 09:04:29,756 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-31 09:04:29,756 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-31 09:04:29,757 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-31 09:04:29,757 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-31 09:04:29,758 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-31 09:04:29,783 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-01-31 09:04:29,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-01-31 09:04:29,791 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:04:29,793 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:04:29,794 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:04:29,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1204970025, now seen corresponding path program 1 times [2018-01-31 09:04:29,801 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:04:29,801 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:04:29,862 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:04:29,862 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:04:29,862 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:04:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:04:29,935 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:04:30,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:04:30,141 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:04:30,141 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-31 09:04:30,143 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-31 09:04:30,157 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-31 09:04:30,158 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-31 09:04:30,160 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 4 states. [2018-01-31 09:04:30,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:04:30,278 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-01-31 09:04:30,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-31 09:04:30,280 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-01-31 09:04:30,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:04:30,292 INFO L225 Difference]: With dead ends: 28 [2018-01-31 09:04:30,298 INFO L226 Difference]: Without dead ends: 24 [2018-01-31 09:04:30,301 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-31 09:04:30,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-01-31 09:04:30,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-01-31 09:04:30,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-01-31 09:04:30,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-01-31 09:04:30,423 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 10 [2018-01-31 09:04:30,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:04:30,423 INFO L432 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-01-31 09:04:30,423 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-31 09:04:30,423 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-01-31 09:04:30,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-01-31 09:04:30,424 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:04:30,424 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:04:30,424 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:04:30,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1204970026, now seen corresponding path program 1 times [2018-01-31 09:04:30,425 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:04:30,425 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:04:30,426 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:04:30,426 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:04:30,426 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:04:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-31 09:04:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-31 09:04:30,481 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-01-31 09:04:30,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 09:04:30 BoogieIcfgContainer [2018-01-31 09:04:30,499 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-31 09:04:30,499 INFO L168 Benchmark]: Toolchain (without parser) took 1501.38 ms. Allocated memory was 305.1 MB in the beginning and 464.0 MB in the end (delta: 158.9 MB). Free memory was 266.0 MB in the beginning and 433.5 MB in the end (delta: -167.4 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-31 09:04:30,501 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 305.1 MB. Free memory is still 270.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-31 09:04:30,501 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.70 ms. Allocated memory is still 305.1 MB. Free memory was 264.0 MB in the beginning and 256.0 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 5.3 GB. [2018-01-31 09:04:30,502 INFO L168 Benchmark]: Boogie Preprocessor took 39.61 ms. Allocated memory is still 305.1 MB. Free memory is still 256.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-31 09:04:30,502 INFO L168 Benchmark]: RCFGBuilder took 390.29 ms. Allocated memory is still 305.1 MB. Free memory was 256.0 MB in the beginning and 241.0 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 5.3 GB. [2018-01-31 09:04:30,503 INFO L168 Benchmark]: TraceAbstraction took 810.95 ms. Allocated memory was 305.1 MB in the beginning and 464.0 MB in the end (delta: 158.9 MB). Free memory was 241.0 MB in the beginning and 433.5 MB in the end (delta: -192.4 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-31 09:04:30,505 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 305.1 MB. Free memory is still 270.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 245.70 ms. Allocated memory is still 305.1 MB. Free memory was 264.0 MB in the beginning and 256.0 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 39.61 ms. Allocated memory is still 305.1 MB. Free memory is still 256.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 390.29 ms. Allocated memory is still 305.1 MB. Free memory was 256.0 MB in the beginning and 241.0 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 810.95 ms. Allocated memory was 305.1 MB in the beginning and 464.0 MB in the end (delta: 158.9 MB). Free memory was 241.0 MB in the beginning and 433.5 MB in the end (delta: -192.4 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={82:0}] [L27] void *point; VAL [cstats={82:0}] [L28] point = (void *)(& cstats) VAL [cstats={82:0}, point={82:0}] [L29] FCALL memset(point, 10, 81UL) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 3 error locations. UNSAFE Result, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 7 SDslu, 27 SDs, 0 SdLazy, 18 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 189 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_AutomizerC.xml/Csv-Benchmark-0-2018-01-31_09-04-30-516.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_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-31_09-04-30-516.csv Received shutdown request...