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/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memset3_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-a74eeac-m [2018-02-02 19:09:18,099 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 19:09:18,100 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 19:09:18,112 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 19:09:18,112 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 19:09:18,113 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 19:09:18,114 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 19:09:18,115 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 19:09:18,117 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 19:09:18,117 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 19:09:18,118 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 19:09:18,118 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 19:09:18,119 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 19:09:18,120 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 19:09:18,120 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 19:09:18,122 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 19:09:18,124 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 19:09:18,125 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 19:09:18,126 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 19:09:18,127 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 19:09:18,129 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-02 19:09:18,129 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-02 19:09:18,129 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-02 19:09:18,130 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-02 19:09:18,130 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-02 19:09:18,131 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-02 19:09:18,131 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-02 19:09:18,132 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-02 19:09:18,132 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-02 19:09:18,132 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 19:09:18,133 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 19:09:18,133 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-02-02 19:09:18,141 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 19:09:18,141 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 19:09:18,142 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 19:09:18,142 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 19:09:18,142 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 19:09:18,143 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 19:09:18,143 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 19:09:18,143 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 19:09:18,143 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 19:09:18,143 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 19:09:18,143 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 19:09:18,143 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 19:09:18,144 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 19:09:18,144 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 19:09:18,144 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 19:09:18,144 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 19:09:18,144 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 19:09:18,144 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 19:09:18,144 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 19:09:18,145 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 19:09:18,145 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 19:09:18,145 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 19:09:18,145 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-02 19:09:18,145 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-02 19:09:18,145 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-02-02 19:09:18,173 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 19:09:18,182 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 19:09:18,185 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 19:09:18,186 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 19:09:18,186 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 19:09:18,186 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memset3_false-valid-deref-write.c [2018-02-02 19:09:18,271 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 19:09:18,273 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 19:09:18,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 19:09:18,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 19:09:18,279 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 19:09:18,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 07:09:18" (1/1) ... [2018-02-02 19:09:18,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55a70b97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:09:18, skipping insertion in model container [2018-02-02 19:09:18,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 07:09:18" (1/1) ... [2018-02-02 19:09:18,293 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 19:09:18,307 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 19:09:18,389 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 19:09:18,398 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 19:09:18,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:09:18 WrapperNode [2018-02-02 19:09:18,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 19:09:18,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 19:09:18,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 19:09:18,402 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 19:09:18,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:09:18" (1/1) ... [2018-02-02 19:09:18,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:09:18" (1/1) ... [2018-02-02 19:09:18,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:09:18" (1/1) ... [2018-02-02 19:09:18,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:09:18" (1/1) ... [2018-02-02 19:09:18,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:09:18" (1/1) ... [2018-02-02 19:09:18,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:09:18" (1/1) ... [2018-02-02 19:09:18,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:09:18" (1/1) ... [2018-02-02 19:09:18,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 19:09:18,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 19:09:18,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 19:09:18,422 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 19:09:18,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:09:18" (1/1) ... No working directory specified, using /home/ultimate/work/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 [2018-02-02 19:09:18,460 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 19:09:18,460 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 19:09:18,460 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 19:09:18,460 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 19:09:18,460 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 19:09:18,460 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 19:09:18,460 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-02-02 19:09:18,461 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-02-02 19:09:18,461 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-02-02 19:09:18,461 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 19:09:18,461 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 19:09:18,461 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 19:09:18,514 WARN L455 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-02-02 19:09:18,558 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 19:09:18,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 07:09:18 BoogieIcfgContainer [2018-02-02 19:09:18,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 19:09:18,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 19:09:18,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 19:09:18,562 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 19:09:18,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 07:09:18" (1/3) ... [2018-02-02 19:09:18,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b516094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 07:09:18, skipping insertion in model container [2018-02-02 19:09:18,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 07:09:18" (2/3) ... [2018-02-02 19:09:18,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b516094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 07:09:18, skipping insertion in model container [2018-02-02 19:09:18,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 07:09:18" (3/3) ... [2018-02-02 19:09:18,564 INFO L107 eAbstractionObserver]: Analyzing ICFG memset3_false-valid-deref-write.c [2018-02-02 19:09:18,571 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-02 19:09:18,575 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-02-02 19:09:18,597 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 19:09:18,597 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 19:09:18,597 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-02 19:09:18,597 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-02 19:09:18,597 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 19:09:18,597 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 19:09:18,597 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 19:09:18,597 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 19:09:18,598 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 19:09:18,608 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-02-02 19:09:18,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-02 19:09:18,614 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 19:09:18,615 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 19:09:18,615 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-02-02 19:09:18,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1417793591, now seen corresponding path program 1 times [2018-02-02 19:09:18,620 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 19:09:18,620 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 19:09:18,650 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:09:18,650 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 19:09:18,650 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:09:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 19:09:18,683 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 19:09:18,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 19:09:18,737 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 19:09:18,737 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 19:09:18,738 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 19:09:18,746 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 19:09:18,746 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 19:09:18,748 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2018-02-02 19:09:18,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 19:09:18,822 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-02-02 19:09:18,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 19:09:18,824 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-02 19:09:18,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 19:09:18,832 INFO L225 Difference]: With dead ends: 22 [2018-02-02 19:09:18,832 INFO L226 Difference]: Without dead ends: 19 [2018-02-02 19:09:18,834 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-02 19:09:18,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-02-02 19:09:18,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-02-02 19:09:18,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-02-02 19:09:18,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-02-02 19:09:18,862 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 8 [2018-02-02 19:09:18,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 19:09:18,862 INFO L432 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-02-02 19:09:18,862 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 19:09:18,863 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-02-02 19:09:18,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-02 19:09:18,863 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 19:09:18,863 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 19:09:18,863 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-02-02 19:09:18,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1417793592, now seen corresponding path program 1 times [2018-02-02 19:09:18,863 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-02 19:09:18,863 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-02 19:09:18,864 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:09:18,864 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 19:09:18,864 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 19:09:18,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-02 19:09:18,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-02 19:09:18,941 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-02 19:09:18,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 07:09:18 BoogieIcfgContainer [2018-02-02 19:09:18,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-02 19:09:18,953 INFO L168 Benchmark]: Toolchain (without parser) took 680.94 ms. Allocated memory was 404.8 MB in the beginning and 615.5 MB in the end (delta: 210.8 MB). Free memory was 362.9 MB in the beginning and 586.0 MB in the end (delta: -223.1 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 19:09:18,954 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 404.8 MB. Free memory is still 368.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 19:09:18,954 INFO L168 Benchmark]: CACSL2BoogieTranslator took 128.57 ms. Allocated memory is still 404.8 MB. Free memory was 362.9 MB in the beginning and 354.9 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 5.3 GB. [2018-02-02 19:09:18,955 INFO L168 Benchmark]: Boogie Preprocessor took 19.80 ms. Allocated memory is still 404.8 MB. Free memory was 354.9 MB in the beginning and 353.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-02 19:09:18,955 INFO L168 Benchmark]: RCFGBuilder took 136.70 ms. Allocated memory is still 404.8 MB. Free memory was 353.6 MB in the beginning and 339.5 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. [2018-02-02 19:09:18,956 INFO L168 Benchmark]: TraceAbstraction took 392.72 ms. Allocated memory was 404.8 MB in the beginning and 615.5 MB in the end (delta: 210.8 MB). Free memory was 339.5 MB in the beginning and 586.0 MB in the end (delta: -246.5 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 19:09:18,958 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 404.8 MB. Free memory is still 368.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 128.57 ms. Allocated memory is still 404.8 MB. Free memory was 362.9 MB in the beginning and 354.9 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 19.80 ms. Allocated memory is still 404.8 MB. Free memory was 354.9 MB in the beginning and 353.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 136.70 ms. Allocated memory is still 404.8 MB. Free memory was 353.6 MB in the beginning and 339.5 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 392.72 ms. Allocated memory was 404.8 MB in the beginning and 615.5 MB in the end (delta: 210.8 MB). Free memory was 339.5 MB in the beginning and 586.0 MB in the end (delta: -246.5 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={82:0}] [L27] void *point; [L28] point = (void *)(& cstats) VAL [cstats={82:0}, point={82:0}] [L29] FCALL memset(point, 0, 81UL) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 3 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 19 SDtfs, 5 SDslu, 21 SDs, 0 SdLazy, 17 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, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 105 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 /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memset3_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_19-09-18-965.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memset3_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-02_19-09-18-965.csv Received shutdown request...