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_cstpcpy-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-26d9e06-m [2018-02-02 10:36:41,034 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 10:36:41,035 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 10:36:41,044 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 10:36:41,044 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 10:36:41,045 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 10:36:41,045 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 10:36:41,046 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 10:36:41,048 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 10:36:41,048 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 10:36:41,049 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 10:36:41,049 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 10:36:41,050 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 10:36:41,051 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 10:36:41,052 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 10:36:41,054 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 10:36:41,055 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 10:36:41,056 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 10:36:41,057 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 10:36:41,058 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 10:36:41,060 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-02 10:36:41,065 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 10:36:41,074 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 10:36:41,074 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 10:36:41,075 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 10:36:41,075 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 10:36:41,075 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 10:36:41,075 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 10:36:41,075 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 10:36:41,076 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 10:36:41,076 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 10:36:41,076 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 10:36:41,076 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 10:36:41,076 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 10:36:41,076 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 10:36:41,076 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 10:36:41,076 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 10:36:41,077 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 10:36:41,077 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 10:36:41,077 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 10:36:41,077 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 10:36:41,077 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 10:36:41,077 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 10:36:41,078 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 10:36:41,078 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-02-02 10:36:41,078 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol_NoArrayInterpol [2018-02-02 10:36:41,105 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 10:36:41,115 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 10:36:41,118 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 10:36:41,120 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 10:36:41,120 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 10:36:41,121 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-02-02 10:36:41,269 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 10:36:41,271 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 10:36:41,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 10:36:41,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 10:36:41,277 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 10:36:41,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:36:41" (1/1) ... [2018-02-02 10:36:41,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@188f4b4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:36:41, skipping insertion in model container [2018-02-02 10:36:41,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:36:41" (1/1) ... [2018-02-02 10:36:41,295 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:36:41,337 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:36:41,414 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:36:41,425 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:36:41,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:36:41 WrapperNode [2018-02-02 10:36:41,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 10:36:41,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 10:36:41,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 10:36:41,430 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 10:36:41,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:36:41" (1/1) ... [2018-02-02 10:36:41,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:36:41" (1/1) ... [2018-02-02 10:36:41,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:36:41" (1/1) ... [2018-02-02 10:36:41,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:36:41" (1/1) ... [2018-02-02 10:36:41,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:36:41" (1/1) ... [2018-02-02 10:36:41,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:36:41" (1/1) ... [2018-02-02 10:36:41,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:36:41" (1/1) ... [2018-02-02 10:36:41,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 10:36:41,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 10:36:41,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 10:36:41,451 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 10:36:41,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:36:41" (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 10:36:41,486 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 10:36:41,486 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 10:36:41,486 INFO L136 BoogieDeclarations]: Found implementation of procedure cstpcpy [2018-02-02 10:36:41,486 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 10:36:41,487 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 10:36:41,487 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 10:36:41,487 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 10:36:41,487 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 10:36:41,487 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 10:36:41,487 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 10:36:41,487 INFO L128 BoogieDeclarations]: Found specification of procedure cstpcpy [2018-02-02 10:36:41,487 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 10:36:41,488 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 10:36:41,488 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 10:36:41,614 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 10:36:41,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:36:41 BoogieIcfgContainer [2018-02-02 10:36:41,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 10:36:41,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 10:36:41,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 10:36:41,618 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 10:36:41,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 10:36:41" (1/3) ... [2018-02-02 10:36:41,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b55c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:36:41, skipping insertion in model container [2018-02-02 10:36:41,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:36:41" (2/3) ... [2018-02-02 10:36:41,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b55c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:36:41, skipping insertion in model container [2018-02-02 10:36:41,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:36:41" (3/3) ... [2018-02-02 10:36:41,621 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-02-02 10:36:41,628 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-02 10:36:41,633 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-02-02 10:36:41,665 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 10:36:41,665 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 10:36:41,665 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-02-02 10:36:41,665 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-02 10:36:41,666 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 10:36:41,666 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 10:36:41,666 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 10:36:41,666 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 10:36:41,667 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 10:36:41,679 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2018-02-02 10:36:41,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-02-02 10:36:41,688 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:36:41,689 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:36:41,689 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, cstpcpyErr0RequiresViolation, cstpcpyErr3RequiresViolation, cstpcpyErr1RequiresViolation, cstpcpyErr2RequiresViolation]=== [2018-02-02 10:36:41,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1122979584, now seen corresponding path program 1 times [2018-02-02 10:36:41,738 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:36:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:36:41,778 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:36:41,815 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 10:36:41,817 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:36:41,817 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 10:36:41,818 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:36:41,818 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 10:36:41,818 INFO L182 omatonBuilderFactory]: Interpolants [43#true, 44#false, 45#(= |#valid| |old(#valid)|)] [2018-02-02 10:36:41,818 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 10:36:41,819 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 10:36:41,827 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 10:36:41,828 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 10:36:41,829 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states. [2018-02-02 10:36:41,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:36:41,895 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2018-02-02 10:36:41,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 10:36:41,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-02-02 10:36:41,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:36:41,904 INFO L225 Difference]: With dead ends: 41 [2018-02-02 10:36:41,905 INFO L226 Difference]: Without dead ends: 37 [2018-02-02 10:36:41,906 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 10:36:41,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-02-02 10:36:41,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-02-02 10:36:41,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-02-02 10:36:41,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2018-02-02 10:36:41,973 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 10 [2018-02-02 10:36:41,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:36:41,973 INFO L432 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2018-02-02 10:36:41,973 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 10:36:41,973 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2018-02-02 10:36:41,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 10:36:41,974 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:36:41,974 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:36:41,974 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, cstpcpyErr0RequiresViolation, cstpcpyErr3RequiresViolation, cstpcpyErr1RequiresViolation, cstpcpyErr2RequiresViolation]=== [2018-02-02 10:36:41,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1918226348, now seen corresponding path program 1 times [2018-02-02 10:36:41,975 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:36:41,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:36:41,985 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:36:42,023 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 10:36:42,024 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:36:42,024 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 10:36:42,024 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:36:42,024 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 10:36:42,024 INFO L182 omatonBuilderFactory]: Interpolants [124#true, 125#false, 126#(= 1 (select |#valid| |main_#t~malloc7.base|)), 127#(= 1 (select |#valid| main_~nondetString~0.base))] [2018-02-02 10:36:42,024 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 10:36:42,025 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 10:36:42,026 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 10:36:42,026 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 10:36:42,026 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 4 states. [2018-02-02 10:36:42,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:36:42,076 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2018-02-02 10:36:42,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 10:36:42,076 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-02-02 10:36:42,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:36:42,077 INFO L225 Difference]: With dead ends: 36 [2018-02-02 10:36:42,077 INFO L226 Difference]: Without dead ends: 36 [2018-02-02 10:36:42,078 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 10:36:42,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-02-02 10:36:42,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-02-02 10:36:42,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-02-02 10:36:42,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2018-02-02 10:36:42,081 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 14 [2018-02-02 10:36:42,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:36:42,081 INFO L432 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2018-02-02 10:36:42,081 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 10:36:42,082 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2018-02-02 10:36:42,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 10:36:42,082 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:36:42,082 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:36:42,082 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, cstpcpyErr0RequiresViolation, cstpcpyErr3RequiresViolation, cstpcpyErr1RequiresViolation, cstpcpyErr2RequiresViolation]=== [2018-02-02 10:36:42,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1918226347, now seen corresponding path program 1 times [2018-02-02 10:36:42,083 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:36:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:36:42,098 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:36:42,170 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 10:36:42,170 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:36:42,171 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 10:36:42,171 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:36:42,171 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 10:36:42,171 INFO L182 omatonBuilderFactory]: Interpolants [202#true, 203#false, 204#(<= 1 main_~length2~0), 205#(and (= 0 |main_#t~malloc7.offset|) (<= 1 main_~length2~0) (= main_~length2~0 (select |#length| |main_#t~malloc7.base|))), 206#(and (<= 1 main_~length2~0) (= main_~length2~0 (select |#length| main_~nondetString~0.base)) (= main_~nondetString~0.offset 0))] [2018-02-02 10:36:42,171 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 10:36:42,171 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 10:36:42,171 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 10:36:42,172 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:36:42,172 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand 5 states. [2018-02-02 10:36:42,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:36:42,217 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2018-02-02 10:36:42,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 10:36:42,218 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-02-02 10:36:42,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:36:42,218 INFO L225 Difference]: With dead ends: 35 [2018-02-02 10:36:42,219 INFO L226 Difference]: Without dead ends: 35 [2018-02-02 10:36:42,219 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-02-02 10:36:42,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-02-02 10:36:42,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-02-02 10:36:42,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-02-02 10:36:42,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2018-02-02 10:36:42,222 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 14 [2018-02-02 10:36:42,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:36:42,222 INFO L432 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2018-02-02 10:36:42,223 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 10:36:42,223 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2018-02-02 10:36:42,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-02 10:36:42,223 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:36:42,223 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:36:42,223 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, cstpcpyErr0RequiresViolation, cstpcpyErr3RequiresViolation, cstpcpyErr1RequiresViolation, cstpcpyErr2RequiresViolation]=== [2018-02-02 10:36:42,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1371633306, now seen corresponding path program 1 times [2018-02-02 10:36:42,224 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:36:42,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:36:42,236 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:36:42,267 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 10:36:42,267 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:36:42,268 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 10:36:42,268 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:36:42,268 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 10:36:42,268 INFO L182 omatonBuilderFactory]: Interpolants [279#true, 280#false, 281#(= 1 (select |#valid| main_~nondetString~0.base)), 282#(= 1 (select |#valid| |cstpcpy_#in~from.base|)), 283#(= 1 (select |#valid| cstpcpy_~from.base))] [2018-02-02 10:36:42,268 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 10:36:42,269 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 10:36:42,269 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 10:36:42,269 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:36:42,269 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 5 states. [2018-02-02 10:36:42,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:36:42,327 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2018-02-02 10:36:42,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 10:36:42,328 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-02-02 10:36:42,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:36:42,328 INFO L225 Difference]: With dead ends: 34 [2018-02-02 10:36:42,328 INFO L226 Difference]: Without dead ends: 34 [2018-02-02 10:36:42,329 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-02-02 10:36:42,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-02-02 10:36:42,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-02-02 10:36:42,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-02-02 10:36:42,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-02-02 10:36:42,331 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 18 [2018-02-02 10:36:42,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:36:42,332 INFO L432 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-02-02 10:36:42,332 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 10:36:42,332 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-02-02 10:36:42,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-02 10:36:42,332 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:36:42,332 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:36:42,332 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, cstpcpyErr0RequiresViolation, cstpcpyErr3RequiresViolation, cstpcpyErr1RequiresViolation, cstpcpyErr2RequiresViolation]=== [2018-02-02 10:36:42,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1371633307, now seen corresponding path program 1 times [2018-02-02 10:36:42,333 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:36:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:36:42,344 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:36:42,409 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 10:36:42,409 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:36:42,409 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-02 10:36:42,409 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:36:42,410 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 10:36:42,410 INFO L182 omatonBuilderFactory]: Interpolants [354#true, 355#false, 356#(<= 1 main_~length2~0), 357#(and (= 0 |main_#t~malloc7.offset|) (<= 1 main_~length2~0) (= main_~length2~0 (select |#length| |main_#t~malloc7.base|))), 358#(and (<= 1 main_~length2~0) (= 0 main_~nondetString~0.offset) (= main_~length2~0 (select |#length| main_~nondetString~0.base))), 359#(and (<= 1 (select |#length| main_~nondetString~0.base)) (= 0 main_~nondetString~0.offset)), 360#(and (= 0 |cstpcpy_#in~from.offset|) (<= 1 (select |#length| |cstpcpy_#in~from.base|))), 361#(and (<= 1 (select |#length| cstpcpy_~from.base)) (= cstpcpy_~from.offset 0))] [2018-02-02 10:36:42,410 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 10:36:42,410 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-02 10:36:42,410 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-02 10:36:42,411 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-02-02 10:36:42,411 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 8 states. [2018-02-02 10:36:42,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:36:42,478 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2018-02-02 10:36:42,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-02 10:36:42,479 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-02-02 10:36:42,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:36:42,480 INFO L225 Difference]: With dead ends: 44 [2018-02-02 10:36:42,480 INFO L226 Difference]: Without dead ends: 44 [2018-02-02 10:36:42,481 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-02-02 10:36:42,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-02-02 10:36:42,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36. [2018-02-02 10:36:42,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-02-02 10:36:42,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2018-02-02 10:36:42,484 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 18 [2018-02-02 10:36:42,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:36:42,484 INFO L432 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2018-02-02 10:36:42,484 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-02 10:36:42,484 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2018-02-02 10:36:42,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-02 10:36:42,485 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:36:42,485 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:36:42,485 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, cstpcpyErr0RequiresViolation, cstpcpyErr3RequiresViolation, cstpcpyErr1RequiresViolation, cstpcpyErr2RequiresViolation]=== [2018-02-02 10:36:42,485 INFO L82 PathProgramCache]: Analyzing trace with hash -429040459, now seen corresponding path program 1 times [2018-02-02 10:36:42,486 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:36:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:36:42,499 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:36:42,505 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 10:36:42,508 INFO L168 Benchmark]: Toolchain (without parser) took 1238.03 ms. Allocated memory was 402.7 MB in the beginning and 610.8 MB in the end (delta: 208.1 MB). Free memory was 357.8 MB in the beginning and 509.6 MB in the end (delta: -151.8 MB). Peak memory consumption was 56.3 MB. Max. memory is 5.3 GB. [2018-02-02 10:36:42,509 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 402.7 MB. Free memory is still 363.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 10:36:42,509 INFO L168 Benchmark]: CACSL2BoogieTranslator took 157.85 ms. Allocated memory is still 402.7 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 10:36:42,509 INFO L168 Benchmark]: Boogie Preprocessor took 21.40 ms. Allocated memory is still 402.7 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 10:36:42,509 INFO L168 Benchmark]: RCFGBuilder took 163.73 ms. Allocated memory is still 402.7 MB. Free memory was 344.6 MB in the beginning and 327.3 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 5.3 GB. [2018-02-02 10:36:42,510 INFO L168 Benchmark]: TraceAbstraction took 891.68 ms. Allocated memory was 402.7 MB in the beginning and 610.8 MB in the end (delta: 208.1 MB). Free memory was 327.3 MB in the beginning and 509.6 MB in the end (delta: -182.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 5.3 GB. [2018-02-02 10:36:42,511 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 402.7 MB. Free memory is still 363.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 157.85 ms. Allocated memory is still 402.7 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 21.40 ms. Allocated memory is still 402.7 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 163.73 ms. Allocated memory is still 402.7 MB. Free memory was 344.6 MB in the beginning and 327.3 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 891.68 ms. Allocated memory was 402.7 MB in the beginning and 610.8 MB in the end (delta: 208.1 MB). Free memory was 327.3 MB in the beginning and 509.6 MB in the end (delta: -182.3 MB). Peak memory consumption was 25.9 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_cstpcpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_10-36-42-518.csv Received shutdown request...