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/array-memsafety/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-26d9e06-m [2018-02-02 10:36:38,184 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 10:36:38,186 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 10:36:38,197 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 10:36:38,197 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 10:36:38,198 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 10:36:38,199 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 10:36:38,200 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 10:36:38,202 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 10:36:38,203 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 10:36:38,204 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 10:36:38,204 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 10:36:38,205 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 10:36:38,206 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 10:36:38,207 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 10:36:38,208 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 10:36:38,210 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 10:36:38,211 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 10:36:38,213 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 10:36:38,213 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 10:36:38,215 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-02 10:36:38,220 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 10:36:38,230 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 10:36:38,230 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 10:36:38,231 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 10:36:38,231 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 10:36:38,232 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 10:36:38,232 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 10:36:38,232 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 10:36:38,232 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 10:36:38,232 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 10:36:38,233 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 10:36:38,233 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 10:36:38,233 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 10:36:38,233 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 10:36:38,233 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 10:36:38,233 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 10:36:38,234 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 10:36:38,234 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 10:36:38,234 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 10:36:38,234 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 10:36:38,234 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 10:36:38,234 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 10:36:38,235 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 10:36:38,235 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-02-02 10:36:38,235 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol_NoArrayInterpol [2018-02-02 10:36:38,266 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 10:36:38,275 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 10:36:38,278 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 10:36:38,279 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 10:36:38,280 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 10:36:38,280 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i [2018-02-02 10:36:38,394 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 10:36:38,396 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 10:36:38,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 10:36:38,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 10:36:38,403 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 10:36:38,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:36:38" (1/1) ... [2018-02-02 10:36:38,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c294638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:36:38, skipping insertion in model container [2018-02-02 10:36:38,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:36:38" (1/1) ... [2018-02-02 10:36:38,421 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:36:38,450 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:36:38,554 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:36:38,566 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:36:38,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:36:38 WrapperNode [2018-02-02 10:36:38,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 10:36:38,572 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 10:36:38,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 10:36:38,572 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 10:36:38,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:36:38" (1/1) ... [2018-02-02 10:36:38,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:36:38" (1/1) ... [2018-02-02 10:36:38,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:36:38" (1/1) ... [2018-02-02 10:36:38,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:36:38" (1/1) ... [2018-02-02 10:36:38,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:36:38" (1/1) ... [2018-02-02 10:36:38,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:36:38" (1/1) ... [2018-02-02 10:36:38,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:36:38" (1/1) ... [2018-02-02 10:36:38,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 10:36:38,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 10:36:38,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 10:36:38,600 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 10:36:38,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:36:38" (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 10:36:38,643 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 10:36:38,643 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 10:36:38,644 INFO L136 BoogieDeclarations]: Found implementation of procedure cmemset [2018-02-02 10:36:38,644 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 10:36:38,644 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 10:36:38,644 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 10:36:38,644 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 10:36:38,644 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 10:36:38,644 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 10:36:38,645 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 10:36:38,645 INFO L128 BoogieDeclarations]: Found specification of procedure cmemset [2018-02-02 10:36:38,645 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 10:36:38,645 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 10:36:38,645 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 10:36:38,756 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 10:36:38,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:36:38 BoogieIcfgContainer [2018-02-02 10:36:38,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 10:36:38,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 10:36:38,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 10:36:38,760 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 10:36:38,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 10:36:38" (1/3) ... [2018-02-02 10:36:38,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@297ee45a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:36:38, skipping insertion in model container [2018-02-02 10:36:38,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:36:38" (2/3) ... [2018-02-02 10:36:38,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@297ee45a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:36:38, skipping insertion in model container [2018-02-02 10:36:38,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:36:38" (3/3) ... [2018-02-02 10:36:38,763 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i [2018-02-02 10:36:38,768 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-02 10:36:38,776 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-02-02 10:36:38,807 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 10:36:38,807 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 10:36:38,807 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-02-02 10:36:38,807 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-02 10:36:38,807 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 10:36:38,807 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 10:36:38,808 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 10:36:38,808 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 10:36:38,808 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 10:36:38,821 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-02-02 10:36:38,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-02 10:36:38,832 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:36:38,833 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:36:38,833 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, cmemsetErr0RequiresViolation, cmemsetErr1RequiresViolation]=== [2018-02-02 10:36:38,839 INFO L82 PathProgramCache]: Analyzing trace with hash -930191962, now seen corresponding path program 1 times [2018-02-02 10:36:38,892 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:36:38,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:36:38,951 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:36:39,069 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 10:36:39,071 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:36:39,071 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-02 10:36:39,071 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:36:39,072 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 10:36:39,072 INFO L182 omatonBuilderFactory]: Interpolants [34#true, 35#false, 36#(= 1 (select |#valid| |main_#t~malloc6.base|)), 37#(= 1 (select |#valid| main_~nondetArea~0.base)), 38#(= 1 (select |#valid| |cmemset_#in~dst.base|)), 39#(= 1 (select |#valid| cmemset_~dst.base)), 40#(= 1 (select |#valid| cmemset_~d~0.base)), 41#(= 1 (select |#valid| |cmemset_#t~post1.base|))] [2018-02-02 10:36:39,073 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 10:36:39,073 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-02 10:36:39,082 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-02 10:36:39,083 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-02-02 10:36:39,084 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 8 states. [2018-02-02 10:36:39,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:36:39,308 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2018-02-02 10:36:39,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-02 10:36:39,365 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-02-02 10:36:39,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:36:39,375 INFO L225 Difference]: With dead ends: 33 [2018-02-02 10:36:39,375 INFO L226 Difference]: Without dead ends: 30 [2018-02-02 10:36:39,376 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2018-02-02 10:36:39,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-02-02 10:36:39,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2018-02-02 10:36:39,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-02-02 10:36:39,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2018-02-02 10:36:39,401 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 15 [2018-02-02 10:36:39,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:36:39,401 INFO L432 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2018-02-02 10:36:39,401 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-02 10:36:39,401 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-02-02 10:36:39,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-02 10:36:39,402 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:36:39,402 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:36:39,402 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, cmemsetErr0RequiresViolation, cmemsetErr1RequiresViolation]=== [2018-02-02 10:36:39,402 INFO L82 PathProgramCache]: Analyzing trace with hash -930191961, now seen corresponding path program 1 times [2018-02-02 10:36:39,403 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:36:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:36:39,420 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:36:39,538 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 10:36:39,539 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:36:39,539 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-02 10:36:39,539 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:36:39,539 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 10:36:39,539 INFO L182 omatonBuilderFactory]: Interpolants [112#(<= 1 main_~n~0), 113#(and (= 0 |main_#t~malloc6.offset|) (<= 1 main_~n~0) (= main_~n~0 (select |#length| |main_#t~malloc6.base|))), 114#(and (= main_~n~0 (select |#length| main_~nondetArea~0.base)) (<= 1 main_~n~0) (= 0 main_~nondetArea~0.offset)), 115#(and (= 0 |cmemset_#in~dst.offset|) (<= 1 (select |#length| |cmemset_#in~dst.base|))), 116#(and (= 0 cmemset_~dst.offset) (<= 1 (select |#length| cmemset_~dst.base))), 117#(and (= 0 cmemset_~d~0.offset) (<= 1 (select |#length| cmemset_~d~0.base))), 118#(and (= |cmemset_#t~post1.offset| 0) (<= 1 (select |#length| |cmemset_#t~post1.base|))), 110#true, 111#false] [2018-02-02 10:36:39,540 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 10:36:39,541 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-02 10:36:39,541 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-02 10:36:39,541 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-02-02 10:36:39,542 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 9 states. [2018-02-02 10:36:39,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:36:39,647 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2018-02-02 10:36:39,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-02 10:36:39,648 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2018-02-02 10:36:39,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:36:39,648 INFO L225 Difference]: With dead ends: 30 [2018-02-02 10:36:39,649 INFO L226 Difference]: Without dead ends: 30 [2018-02-02 10:36:39,649 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-02-02 10:36:39,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-02-02 10:36:39,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2018-02-02 10:36:39,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-02-02 10:36:39,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2018-02-02 10:36:39,654 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 15 [2018-02-02 10:36:39,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:36:39,654 INFO L432 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2018-02-02 10:36:39,655 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-02 10:36:39,655 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2018-02-02 10:36:39,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-02 10:36:39,655 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:36:39,656 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 10:36:39,656 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, cmemsetErr0RequiresViolation, cmemsetErr1RequiresViolation]=== [2018-02-02 10:36:39,656 INFO L82 PathProgramCache]: Analyzing trace with hash -890079964, now seen corresponding path program 1 times [2018-02-02 10:36:39,657 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:36:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:36:39,676 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:36:39,682 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 10:36:39,686 INFO L168 Benchmark]: Toolchain (without parser) took 1291.20 ms. Allocated memory was 400.0 MB in the beginning and 600.8 MB in the end (delta: 200.8 MB). Free memory was 357.8 MB in the beginning and 535.4 MB in the end (delta: -177.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 5.3 GB. [2018-02-02 10:36:39,687 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 400.0 MB. Free memory is still 363.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 10:36:39,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.07 ms. Allocated memory is still 400.0 MB. Free memory was 356.5 MB in the beginning and 347.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 5.3 GB. [2018-02-02 10:36:39,688 INFO L168 Benchmark]: Boogie Preprocessor took 28.38 ms. Allocated memory is still 400.0 MB. Free memory was 347.2 MB in the beginning and 344.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-02 10:36:39,688 INFO L168 Benchmark]: RCFGBuilder took 156.67 ms. Allocated memory is still 400.0 MB. Free memory was 344.6 MB in the beginning and 328.7 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 5.3 GB. [2018-02-02 10:36:39,689 INFO L168 Benchmark]: TraceAbstraction took 928.05 ms. Allocated memory was 400.0 MB in the beginning and 600.8 MB in the end (delta: 200.8 MB). Free memory was 328.7 MB in the beginning and 535.4 MB in the end (delta: -206.7 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 10:36:39,690 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 400.0 MB. Free memory is still 363.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 175.07 ms. Allocated memory is still 400.0 MB. Free memory was 356.5 MB in the beginning and 347.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 28.38 ms. Allocated memory is still 400.0 MB. Free memory was 347.2 MB in the beginning and 344.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 156.67 ms. Allocated memory is still 400.0 MB. Free memory was 344.6 MB in the beginning and 328.7 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 928.05 ms. Allocated memory was 400.0 MB in the beginning and 600.8 MB in the end (delta: 200.8 MB). Free memory was 328.7 MB in the beginning and 535.4 MB in the end (delta: -206.7 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/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_10-36-39-697.csv Received shutdown request...