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_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/array-memsafety/openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:03:33,135 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:03:33,137 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:03:33,149 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:03:33,149 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:03:33,150 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:03:33,151 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:03:33,152 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:03:33,154 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:03:33,155 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:03:33,155 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:03:33,155 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:03:33,156 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:03:33,157 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:03:33,158 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:03:33,160 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:03:33,161 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:03:33,162 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:03:33,163 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:03:33,164 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:03:33,166 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 04:03:33,170 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-04 04:03:33,179 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:03:33,179 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:03:33,180 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:03:33,180 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:03:33,180 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:03:33,180 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:03:33,181 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:03:33,181 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:03:33,181 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:03:33,181 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:03:33,181 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:03:33,181 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:03:33,181 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:03:33,182 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:03:33,182 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:03:33,182 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:03:33,182 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:03:33,182 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:03:33,182 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:03:33,182 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:03:33,183 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:03:33,183 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:03:33,183 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 04:03:33,183 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 04:03:33,183 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 04:03:33,210 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:03:33,221 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:03:33,224 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:03:33,225 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:03:33,226 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:03:33,226 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i [2018-02-04 04:03:33,355 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:03:33,356 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:03:33,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:03:33,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:03:33,361 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:03:33,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:03:33" (1/1) ... [2018-02-04 04:03:33,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37169f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:33, skipping insertion in model container [2018-02-04 04:03:33,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:03:33" (1/1) ... [2018-02-04 04:03:33,376 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:03:33,405 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:03:33,493 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:03:33,504 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:03:33,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:33 WrapperNode [2018-02-04 04:03:33,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:03:33,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:03:33,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:03:33,510 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:03:33,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:33" (1/1) ... [2018-02-04 04:03:33,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:33" (1/1) ... [2018-02-04 04:03:33,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:33" (1/1) ... [2018-02-04 04:03:33,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:33" (1/1) ... [2018-02-04 04:03:33,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:33" (1/1) ... [2018-02-04 04:03:33,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:33" (1/1) ... [2018-02-04 04:03:33,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:33" (1/1) ... [2018-02-04 04:03:33,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:03:33,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:03:33,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:03:33,539 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:03:33,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:33" (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 [2018-02-04 04:03:33,577 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:03:33,578 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:03:33,578 INFO L136 BoogieDeclarations]: Found implementation of procedure cmemchr [2018-02-04 04:03:33,578 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:03:33,578 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 04:03:33,578 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 04:03:33,578 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:03:33,578 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:03:33,578 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:03:33,578 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:03:33,578 INFO L128 BoogieDeclarations]: Found specification of procedure cmemchr [2018-02-04 04:03:33,579 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:03:33,579 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:03:33,579 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:03:33,700 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:03:33,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:03:33 BoogieIcfgContainer [2018-02-04 04:03:33,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:03:33,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:03:33,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:03:33,703 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:03:33,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:03:33" (1/3) ... [2018-02-04 04:03:33,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31996b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:03:33, skipping insertion in model container [2018-02-04 04:03:33,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:33" (2/3) ... [2018-02-04 04:03:33,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31996b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:03:33, skipping insertion in model container [2018-02-04 04:03:33,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:03:33" (3/3) ... [2018-02-04 04:03:33,706 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i [2018-02-04 04:03:33,711 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:03:33,716 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-02-04 04:03:33,739 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:03:33,739 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:03:33,739 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 04:03:33,740 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 04:03:33,740 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:03:33,740 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:03:33,740 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:03:33,740 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:03:33,741 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:03:33,752 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-02-04 04:03:33,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 04:03:33,761 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:33,762 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:33,762 INFO L371 AbstractCegarLoop]: === Iteration 1 === [cmemchrErr1RequiresViolation, cmemchrErr0RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:03:33,766 INFO L82 PathProgramCache]: Analyzing trace with hash -624451344, now seen corresponding path program 1 times [2018-02-04 04:03:33,768 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:33,769 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:33,812 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:33,813 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:33,813 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:33,865 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:33,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:03:33,997 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:33,997 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 04:03:33,998 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 04:03:34,008 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 04:03:34,009 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-02-04 04:03:34,011 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 8 states. [2018-02-04 04:03:34,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:34,168 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2018-02-04 04:03:34,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 04:03:34,215 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-02-04 04:03:34,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:34,227 INFO L225 Difference]: With dead ends: 33 [2018-02-04 04:03:34,227 INFO L226 Difference]: Without dead ends: 30 [2018-02-04 04:03:34,229 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 [2018-02-04 04:03:34,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-02-04 04:03:34,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2018-02-04 04:03:34,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-02-04 04:03:34,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2018-02-04 04:03:34,259 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 15 [2018-02-04 04:03:34,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:34,259 INFO L432 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2018-02-04 04:03:34,259 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 04:03:34,260 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2018-02-04 04:03:34,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 04:03:34,260 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:34,260 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:34,260 INFO L371 AbstractCegarLoop]: === Iteration 2 === [cmemchrErr1RequiresViolation, cmemchrErr0RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:03:34,261 INFO L82 PathProgramCache]: Analyzing trace with hash -624451343, now seen corresponding path program 1 times [2018-02-04 04:03:34,261 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:34,261 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:34,262 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:34,262 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:34,262 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:34,279 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:34,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:03:34,415 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:34,416 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-04 04:03:34,417 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-04 04:03:34,418 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-04 04:03:34,418 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-02-04 04:03:34,418 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 9 states. [2018-02-04 04:03:34,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:34,529 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2018-02-04 04:03:34,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-04 04:03:34,529 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2018-02-04 04:03:34,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:34,530 INFO L225 Difference]: With dead ends: 30 [2018-02-04 04:03:34,530 INFO L226 Difference]: Without dead ends: 30 [2018-02-04 04:03:34,531 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 [2018-02-04 04:03:34,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-02-04 04:03:34,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2018-02-04 04:03:34,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-02-04 04:03:34,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2018-02-04 04:03:34,533 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 15 [2018-02-04 04:03:34,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:34,533 INFO L432 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2018-02-04 04:03:34,533 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-04 04:03:34,534 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2018-02-04 04:03:34,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 04:03:34,534 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:34,534 INFO L351 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:34,534 INFO L371 AbstractCegarLoop]: === Iteration 3 === [cmemchrErr1RequiresViolation, cmemchrErr0RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:03:34,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1772059431, now seen corresponding path program 1 times [2018-02-04 04:03:34,534 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:34,535 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:34,535 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:34,535 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:34,535 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:34,555 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:34,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:03:34,672 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:34,672 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 04:03:34,672 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 04:03:34,672 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 04:03:34,673 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-02-04 04:03:34,673 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 7 states. [2018-02-04 04:03:34,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:34,732 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2018-02-04 04:03:34,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 04:03:34,733 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-02-04 04:03:34,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:34,734 INFO L225 Difference]: With dead ends: 49 [2018-02-04 04:03:34,734 INFO L226 Difference]: Without dead ends: 49 [2018-02-04 04:03:34,734 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-02-04 04:03:34,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-02-04 04:03:34,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 42. [2018-02-04 04:03:34,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-02-04 04:03:34,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2018-02-04 04:03:34,738 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 20 [2018-02-04 04:03:34,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:34,738 INFO L432 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2018-02-04 04:03:34,738 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 04:03:34,738 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2018-02-04 04:03:34,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 04:03:34,739 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:34,739 INFO L351 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:34,739 INFO L371 AbstractCegarLoop]: === Iteration 4 === [cmemchrErr1RequiresViolation, cmemchrErr0RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:03:34,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1185253417, now seen corresponding path program 1 times [2018-02-04 04:03:34,740 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:34,740 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:34,740 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:34,741 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:34,741 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:34,757 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:34,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:03:34,931 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 04:03:34,931 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 04:03:34,932 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:34,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:34,976 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 04:03:35,016 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-02-04 04:03:35,018 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 04:03:35,021 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 04:03:35,022 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-02-04 04:03:35,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:03:35,219 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 04:03:35,219 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2018-02-04 04:03:35,219 INFO L409 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-02-04 04:03:35,220 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-02-04 04:03:35,220 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2018-02-04 04:03:35,220 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand 23 states. [2018-02-04 04:03:35,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:35,560 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2018-02-04 04:03:35,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-02-04 04:03:35,561 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 20 [2018-02-04 04:03:35,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:35,562 INFO L225 Difference]: With dead ends: 55 [2018-02-04 04:03:35,562 INFO L226 Difference]: Without dead ends: 55 [2018-02-04 04:03:35,562 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=126, Invalid=866, Unknown=0, NotChecked=0, Total=992 [2018-02-04 04:03:35,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-02-04 04:03:35,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 47. [2018-02-04 04:03:35,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-02-04 04:03:35,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2018-02-04 04:03:35,567 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 20 [2018-02-04 04:03:35,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:35,567 INFO L432 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2018-02-04 04:03:35,567 INFO L433 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-02-04 04:03:35,567 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2018-02-04 04:03:35,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 04:03:35,568 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:35,568 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] [2018-02-04 04:03:35,568 INFO L371 AbstractCegarLoop]: === Iteration 5 === [cmemchrErr1RequiresViolation, cmemchrErr0RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:03:35,568 INFO L82 PathProgramCache]: Analyzing trace with hash 423617884, now seen corresponding path program 1 times [2018-02-04 04:03:35,568 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:35,568 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:35,569 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:35,569 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:35,569 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:35,578 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:35,581 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.MultiTrackTraceAbstractionRefinementStrategy.getTraceCheck(MultiTrackTraceAbstractionRefinementStrategy.java:222) 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) [2018-02-04 04:03:35,584 INFO L168 Benchmark]: Toolchain (without parser) took 2228.48 ms. Allocated memory was 396.4 MB in the beginning and 613.9 MB in the end (delta: 217.6 MB). Free memory was 354.4 MB in the beginning and 492.2 MB in the end (delta: -137.8 MB). Peak memory consumption was 79.8 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:35,585 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 396.4 MB. Free memory is still 359.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:03:35,585 INFO L168 Benchmark]: CACSL2BoogieTranslator took 152.72 ms. Allocated memory is still 396.4 MB. Free memory was 353.0 MB in the beginning and 343.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:35,585 INFO L168 Benchmark]: Boogie Preprocessor took 28.73 ms. Allocated memory is still 396.4 MB. Free memory was 343.8 MB in the beginning and 341.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:35,585 INFO L168 Benchmark]: RCFGBuilder took 161.68 ms. Allocated memory is still 396.4 MB. Free memory was 341.2 MB in the beginning and 325.3 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:35,586 INFO L168 Benchmark]: TraceAbstraction took 1882.13 ms. Allocated memory was 396.4 MB in the beginning and 613.9 MB in the end (delta: 217.6 MB). Free memory was 325.3 MB in the beginning and 492.2 MB in the end (delta: -166.9 MB). Peak memory consumption was 50.7 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:35,587 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 396.4 MB. Free memory is still 359.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 152.72 ms. Allocated memory is still 396.4 MB. Free memory was 353.0 MB in the beginning and 343.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 28.73 ms. Allocated memory is still 396.4 MB. Free memory was 343.8 MB in the beginning and 341.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 161.68 ms. Allocated memory is still 396.4 MB. Free memory was 341.2 MB in the beginning and 325.3 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1882.13 ms. Allocated memory was 396.4 MB in the beginning and 613.9 MB in the end (delta: 217.6 MB). Free memory was 325.3 MB in the beginning and 492.2 MB in the end (delta: -166.9 MB). Peak memory consumption was 50.7 MB. 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_cmemchr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-03-35-592.csv Received shutdown request...