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/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/list-ext-properties/960521-1_1_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-26d9e06-m [2018-02-02 10:40:45,615 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 10:40:45,616 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 10:40:45,628 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 10:40:45,628 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 10:40:45,629 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 10:40:45,630 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 10:40:45,631 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 10:40:45,633 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 10:40:45,634 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 10:40:45,635 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 10:40:45,635 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 10:40:45,636 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 10:40:45,637 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 10:40:45,638 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 10:40:45,640 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 10:40:45,641 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 10:40:45,643 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 10:40:45,644 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 10:40:45,645 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 10:40:45,647 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-02 10:40:45,651 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 10:40:45,651 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 10:40:45,651 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-02 10:40:45,661 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 10:40:45,661 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 10:40:45,662 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 10:40:45,662 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 10:40:45,662 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 10:40:45,662 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 10:40:45,662 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 10:40:45,662 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 10:40:45,662 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 10:40:45,663 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 10:40:45,663 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 10:40:45,663 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 10:40:45,663 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 10:40:45,663 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 10:40:45,663 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 10:40:45,663 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 10:40:45,663 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 10:40:45,663 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 10:40:45,664 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 10:40:45,664 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 10:40:45,664 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 10:40:45,664 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 10:40:45,664 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-02-02 10:40:45,664 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol_NoArrayInterpol [2018-02-02 10:40:45,693 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 10:40:45,702 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 10:40:45,704 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 10:40:45,705 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 10:40:45,706 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 10:40:45,706 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/960521-1_1_true-valid-memsafety.i [2018-02-02 10:40:45,830 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 10:40:45,832 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 10:40:45,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 10:40:45,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 10:40:45,839 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 10:40:45,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:40:45" (1/1) ... [2018-02-02 10:40:45,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38c6a4fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:45, skipping insertion in model container [2018-02-02 10:40:45,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:40:45" (1/1) ... [2018-02-02 10:40:45,856 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:40:45,884 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:40:45,965 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:40:45,977 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:40:45,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:45 WrapperNode [2018-02-02 10:40:45,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 10:40:45,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 10:40:45,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 10:40:45,983 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 10:40:45,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:45" (1/1) ... [2018-02-02 10:40:45,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:45" (1/1) ... [2018-02-02 10:40:46,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:45" (1/1) ... [2018-02-02 10:40:46,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:45" (1/1) ... [2018-02-02 10:40:46,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:45" (1/1) ... [2018-02-02 10:40:46,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:45" (1/1) ... [2018-02-02 10:40:46,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:45" (1/1) ... [2018-02-02 10:40:46,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 10:40:46,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 10:40:46,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 10:40:46,016 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 10:40:46,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:45" (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 10:40:46,059 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 10:40:46,060 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 10:40:46,060 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-02-02 10:40:46,060 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 10:40:46,060 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 10:40:46,060 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 10:40:46,060 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 10:40:46,060 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 10:40:46,060 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 10:40:46,060 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 10:40:46,060 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 10:40:46,060 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 10:40:46,061 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-02-02 10:40:46,061 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 10:40:46,061 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 10:40:46,061 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 10:40:46,257 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 10:40:46,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:40:46 BoogieIcfgContainer [2018-02-02 10:40:46,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 10:40:46,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 10:40:46,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 10:40:46,261 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 10:40:46,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 10:40:45" (1/3) ... [2018-02-02 10:40:46,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1772bf8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:40:46, skipping insertion in model container [2018-02-02 10:40:46,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:45" (2/3) ... [2018-02-02 10:40:46,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1772bf8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:40:46, skipping insertion in model container [2018-02-02 10:40:46,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:40:46" (3/3) ... [2018-02-02 10:40:46,264 INFO L107 eAbstractionObserver]: Analyzing ICFG 960521-1_1_true-valid-memsafety.i [2018-02-02 10:40:46,269 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-02 10:40:46,274 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2018-02-02 10:40:46,297 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 10:40:46,297 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 10:40:46,298 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-02-02 10:40:46,298 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-02 10:40:46,298 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 10:40:46,298 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 10:40:46,298 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 10:40:46,298 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 10:40:46,299 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 10:40:46,309 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-02-02 10:40:46,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-02-02 10:40:46,318 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:40:46,318 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:40:46,319 INFO L371 AbstractCegarLoop]: === Iteration 1 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]=== [2018-02-02 10:40:46,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1159416495, now seen corresponding path program 1 times [2018-02-02 10:40:46,358 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:40:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:40:46,390 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:40:46,416 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 10:40:46,418 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:40:46,418 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 10:40:46,419 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:40:46,419 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 10:40:46,420 INFO L182 omatonBuilderFactory]: Interpolants [62#true, 63#false] [2018-02-02 10:40:46,420 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 10:40:46,420 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-02-02 10:40:46,428 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-02-02 10:40:46,428 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-02-02 10:40:46,430 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 2 states. [2018-02-02 10:40:46,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:40:46,442 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2018-02-02 10:40:46,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-02-02 10:40:46,443 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-02-02 10:40:46,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:40:46,449 INFO L225 Difference]: With dead ends: 59 [2018-02-02 10:40:46,449 INFO L226 Difference]: Without dead ends: 56 [2018-02-02 10:40:46,450 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-02-02 10:40:46,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-02-02 10:40:46,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-02-02 10:40:46,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-02-02 10:40:46,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2018-02-02 10:40:46,547 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 12 [2018-02-02 10:40:46,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:40:46,547 INFO L432 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2018-02-02 10:40:46,547 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-02-02 10:40:46,547 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2018-02-02 10:40:46,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 10:40:46,547 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:40:46,548 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:40:46,548 INFO L371 AbstractCegarLoop]: === Iteration 2 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]=== [2018-02-02 10:40:46,548 INFO L82 PathProgramCache]: Analyzing trace with hash 91943959, now seen corresponding path program 1 times [2018-02-02 10:40:46,549 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:40:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:40:46,567 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:40:46,608 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 10:40:46,609 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:40:46,609 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 10:40:46,609 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:40:46,609 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 10:40:46,609 INFO L182 omatonBuilderFactory]: Interpolants [179#true, 180#false, 181#(= 1 (select |#valid| |main_#t~malloc7.base|)), 182#(= 1 (select |#valid| |main_#t~post8.base|))] [2018-02-02 10:40:46,609 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 10:40:46,610 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 10:40:46,610 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 10:40:46,611 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 10:40:46,611 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand 4 states. [2018-02-02 10:40:46,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:40:46,732 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2018-02-02 10:40:46,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 10:40:46,733 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-02-02 10:40:46,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:40:46,734 INFO L225 Difference]: With dead ends: 55 [2018-02-02 10:40:46,734 INFO L226 Difference]: Without dead ends: 55 [2018-02-02 10:40:46,735 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 10:40:46,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-02-02 10:40:46,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-02-02 10:40:46,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-02-02 10:40:46,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2018-02-02 10:40:46,740 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 14 [2018-02-02 10:40:46,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:40:46,740 INFO L432 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2018-02-02 10:40:46,740 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 10:40:46,740 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2018-02-02 10:40:46,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 10:40:46,741 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:40:46,741 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:40:46,741 INFO L371 AbstractCegarLoop]: === Iteration 3 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]=== [2018-02-02 10:40:46,741 INFO L82 PathProgramCache]: Analyzing trace with hash 91943960, now seen corresponding path program 1 times [2018-02-02 10:40:46,742 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:40:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:40:46,758 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:40:46,824 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 10:40:46,824 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:40:46,824 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 10:40:46,824 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:40:46,825 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 10:40:46,825 INFO L182 omatonBuilderFactory]: Interpolants [295#true, 296#false, 297#(<= 1 ~n), 298#(and (= 0 |main_#t~malloc7.offset|) (<= 4 (select |#length| |main_#t~malloc7.base|))), 299#(and (= |main_#t~post8.offset| 0) (<= 4 (select |#length| |main_#t~post8.base|)))] [2018-02-02 10:40:46,825 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 10:40:46,825 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 10:40:46,825 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 10:40:46,826 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:40:46,826 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 5 states. [2018-02-02 10:40:46,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:40:46,904 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2018-02-02 10:40:46,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 10:40:46,904 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-02-02 10:40:46,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:40:46,906 INFO L225 Difference]: With dead ends: 54 [2018-02-02 10:40:46,906 INFO L226 Difference]: Without dead ends: 54 [2018-02-02 10:40:46,906 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-02-02 10:40:46,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-02-02 10:40:46,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-02-02 10:40:46,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-02-02 10:40:46,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2018-02-02 10:40:46,909 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 14 [2018-02-02 10:40:46,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:40:46,910 INFO L432 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2018-02-02 10:40:46,910 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 10:40:46,910 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2018-02-02 10:40:46,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-02 10:40:46,910 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:40:46,910 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:40:46,910 INFO L371 AbstractCegarLoop]: === Iteration 4 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr14EnsuresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation]=== [2018-02-02 10:40:46,910 INFO L82 PathProgramCache]: Analyzing trace with hash -255124515, now seen corresponding path program 1 times [2018-02-02 10:40:46,911 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:40:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:40:46,925 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:40:46,930 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Unknown lemma type! at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$1(Interpolator.java:263) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:132) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:220) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:915) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedTraceAbstractionRefinementStrategy.getTraceCheck(FixedTraceAbstractionRefinementStrategy.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:397) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-02-02 10:40:46,934 INFO L168 Benchmark]: Toolchain (without parser) took 1102.96 ms. Allocated memory was 400.0 MB in the beginning and 604.0 MB in the end (delta: 203.9 MB). Free memory was 356.7 MB in the beginning and 537.9 MB in the end (delta: -181.2 MB). Peak memory consumption was 22.7 MB. Max. memory is 5.3 GB. [2018-02-02 10:40:46,935 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 400.0 MB. Free memory is still 363.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 10:40:46,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 149.54 ms. Allocated memory is still 400.0 MB. Free memory was 356.7 MB in the beginning and 346.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 5.3 GB. [2018-02-02 10:40:46,935 INFO L168 Benchmark]: Boogie Preprocessor took 32.72 ms. Allocated memory is still 400.0 MB. Free memory was 346.0 MB in the beginning and 344.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-02 10:40:46,936 INFO L168 Benchmark]: RCFGBuilder took 241.95 ms. Allocated memory is still 400.0 MB. Free memory was 344.7 MB in the beginning and 323.5 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 5.3 GB. [2018-02-02 10:40:46,936 INFO L168 Benchmark]: TraceAbstraction took 674.93 ms. Allocated memory was 400.0 MB in the beginning and 604.0 MB in the end (delta: 203.9 MB). Free memory was 323.5 MB in the beginning and 537.9 MB in the end (delta: -214.4 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 10:40:46,937 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 400.0 MB. Free memory is still 363.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 149.54 ms. Allocated memory is still 400.0 MB. Free memory was 356.7 MB in the beginning and 346.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 32.72 ms. Allocated memory is still 400.0 MB. Free memory was 346.0 MB in the beginning and 344.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 241.95 ms. Allocated memory is still 400.0 MB. Free memory was 344.7 MB in the beginning and 323.5 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 674.93 ms. Allocated memory was 400.0 MB in the beginning and 604.0 MB in the end (delta: 203.9 MB). Free memory was 323.5 MB in the beginning and 537.9 MB in the end (delta: -214.4 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Unknown lemma type! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Unknown lemma type!: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/960521-1_1_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_10-40-46-944.csv Received shutdown request...