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_cstpcpy-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:03:39,893 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:03:39,894 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:03:39,906 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:03:39,906 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:03:39,907 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:03:39,907 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:03:39,909 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:03:39,910 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:03:39,911 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:03:39,911 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:03:39,912 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:03:39,913 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:03:39,914 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:03:39,914 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:03:39,916 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:03:39,918 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:03:39,919 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:03:39,920 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:03:39,921 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:03:39,923 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 04:03:39,927 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:03:39,928 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:03:39,928 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 04:03:39,938 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:03:39,939 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:03:39,940 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:03:39,940 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:03:39,940 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:03:39,940 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:03:39,940 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:03:39,941 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:03:39,941 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:03:39,941 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:03:39,941 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:03:39,941 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:03:39,941 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:03:39,942 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:03:39,942 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:03:39,942 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:03:39,942 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:03:39,942 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:03:39,942 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:03:39,942 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:03:39,943 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:03:39,943 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:03:39,943 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 04:03:39,943 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 04:03:39,943 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 04:03:39,973 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:03:39,984 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:03:39,989 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:03:39,990 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:03:39,991 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:03:39,991 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-02-04 04:03:40,113 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:03:40,114 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:03:40,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:03:40,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:03:40,119 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:03:40,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:03:40" (1/1) ... [2018-02-04 04:03:40,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d61a4f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:40, skipping insertion in model container [2018-02-04 04:03:40,122 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:03:40" (1/1) ... [2018-02-04 04:03:40,131 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:03:40,157 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:03:40,241 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:03:40,253 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:03:40,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:40 WrapperNode [2018-02-04 04:03:40,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:03:40,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:03:40,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:03:40,258 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:03:40,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:40" (1/1) ... [2018-02-04 04:03:40,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:40" (1/1) ... [2018-02-04 04:03:40,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:40" (1/1) ... [2018-02-04 04:03:40,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:40" (1/1) ... [2018-02-04 04:03:40,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:40" (1/1) ... [2018-02-04 04:03:40,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:40" (1/1) ... [2018-02-04 04:03:40,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:40" (1/1) ... [2018-02-04 04:03:40,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:03:40,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:03:40,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:03:40,278 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:03:40,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:40" (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 04:03:40,312 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:03:40,312 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:03:40,312 INFO L136 BoogieDeclarations]: Found implementation of procedure cstpcpy [2018-02-04 04:03:40,312 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:03:40,312 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 04:03:40,312 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 04:03:40,312 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:03:40,312 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:03:40,313 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:03:40,313 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:03:40,313 INFO L128 BoogieDeclarations]: Found specification of procedure cstpcpy [2018-02-04 04:03:40,313 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:03:40,313 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:03:40,313 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:03:40,444 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:03:40,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:03:40 BoogieIcfgContainer [2018-02-04 04:03:40,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:03:40,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:03:40,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:03:40,448 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:03:40,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:03:40" (1/3) ... [2018-02-04 04:03:40,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1eb27b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:03:40, skipping insertion in model container [2018-02-04 04:03:40,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:03:40" (2/3) ... [2018-02-04 04:03:40,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1eb27b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:03:40, skipping insertion in model container [2018-02-04 04:03:40,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:03:40" (3/3) ... [2018-02-04 04:03:40,450 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstpcpy-alloca_true-valid-memsafety_true-termination.i [2018-02-04 04:03:40,456 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:03:40,460 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-02-04 04:03:40,495 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:03:40,495 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:03:40,495 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 04:03:40,495 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 04:03:40,495 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:03:40,496 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:03:40,496 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:03:40,496 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:03:40,496 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:03:40,508 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2018-02-04 04:03:40,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-02-04 04:03:40,517 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:40,518 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:40,518 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, cstpcpyErr0RequiresViolation, cstpcpyErr3RequiresViolation, cstpcpyErr1RequiresViolation, cstpcpyErr2RequiresViolation]=== [2018-02-04 04:03:40,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1122979584, now seen corresponding path program 1 times [2018-02-04 04:03:40,524 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:40,524 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:40,567 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:40,567 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:40,567 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:40,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:40,613 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:40,655 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 04:03:40,657 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:40,657 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 04:03:40,659 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 04:03:40,670 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 04:03:40,671 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:03:40,673 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states. [2018-02-04 04:03:40,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:40,759 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2018-02-04 04:03:40,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 04:03:40,760 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-02-04 04:03:40,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:40,813 INFO L225 Difference]: With dead ends: 41 [2018-02-04 04:03:40,813 INFO L226 Difference]: Without dead ends: 37 [2018-02-04 04:03:40,815 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 [2018-02-04 04:03:40,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-02-04 04:03:40,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-02-04 04:03:40,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-02-04 04:03:40,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2018-02-04 04:03:40,843 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 10 [2018-02-04 04:03:40,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:40,844 INFO L432 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2018-02-04 04:03:40,844 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 04:03:40,844 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2018-02-04 04:03:40,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 04:03:40,844 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:40,844 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:40,844 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, cstpcpyErr0RequiresViolation, cstpcpyErr3RequiresViolation, cstpcpyErr1RequiresViolation, cstpcpyErr2RequiresViolation]=== [2018-02-04 04:03:40,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1918226348, now seen corresponding path program 1 times [2018-02-04 04:03:40,845 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:40,845 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:40,845 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:40,845 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:40,845 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:40,858 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:40,892 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 04:03:40,892 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:40,892 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:03:40,894 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:03:40,894 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:03:40,894 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:03:40,894 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 4 states. [2018-02-04 04:03:40,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:40,938 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2018-02-04 04:03:40,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:03:40,938 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-02-04 04:03:40,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:40,939 INFO L225 Difference]: With dead ends: 36 [2018-02-04 04:03:40,939 INFO L226 Difference]: Without dead ends: 36 [2018-02-04 04:03:40,940 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 [2018-02-04 04:03:40,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-02-04 04:03:40,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-02-04 04:03:40,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-02-04 04:03:40,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2018-02-04 04:03:40,943 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 14 [2018-02-04 04:03:40,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:40,944 INFO L432 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2018-02-04 04:03:40,944 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:03:40,944 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2018-02-04 04:03:40,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 04:03:40,944 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:40,945 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:40,945 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, cstpcpyErr0RequiresViolation, cstpcpyErr3RequiresViolation, cstpcpyErr1RequiresViolation, cstpcpyErr2RequiresViolation]=== [2018-02-04 04:03:40,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1918226347, now seen corresponding path program 1 times [2018-02-04 04:03:40,945 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:40,945 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:40,946 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:40,946 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:40,946 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:40,959 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:41,027 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 04:03:41,028 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:41,028 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:03:41,028 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:03:41,028 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:03:41,029 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:03:41,029 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand 5 states. [2018-02-04 04:03:41,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:41,077 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2018-02-04 04:03:41,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:03:41,077 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-02-04 04:03:41,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:41,078 INFO L225 Difference]: With dead ends: 35 [2018-02-04 04:03:41,078 INFO L226 Difference]: Without dead ends: 35 [2018-02-04 04:03:41,078 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 [2018-02-04 04:03:41,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-02-04 04:03:41,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-02-04 04:03:41,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-02-04 04:03:41,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2018-02-04 04:03:41,082 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 14 [2018-02-04 04:03:41,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:41,082 INFO L432 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2018-02-04 04:03:41,082 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:03:41,082 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2018-02-04 04:03:41,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-04 04:03:41,083 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:41,083 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:41,083 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, cstpcpyErr0RequiresViolation, cstpcpyErr3RequiresViolation, cstpcpyErr1RequiresViolation, cstpcpyErr2RequiresViolation]=== [2018-02-04 04:03:41,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1371633306, now seen corresponding path program 1 times [2018-02-04 04:03:41,083 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:41,083 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:41,084 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:41,084 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:41,084 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:41,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:41,094 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:41,118 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 04:03:41,119 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:41,119 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:03:41,119 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:03:41,119 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:03:41,120 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:03:41,120 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 5 states. [2018-02-04 04:03:41,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:41,168 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2018-02-04 04:03:41,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:03:41,168 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-02-04 04:03:41,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:41,169 INFO L225 Difference]: With dead ends: 34 [2018-02-04 04:03:41,169 INFO L226 Difference]: Without dead ends: 34 [2018-02-04 04:03:41,169 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 [2018-02-04 04:03:41,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-02-04 04:03:41,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-02-04 04:03:41,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-02-04 04:03:41,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-02-04 04:03:41,172 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 18 [2018-02-04 04:03:41,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:41,173 INFO L432 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-02-04 04:03:41,173 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:03:41,173 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-02-04 04:03:41,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-04 04:03:41,173 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:41,173 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:41,173 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, cstpcpyErr0RequiresViolation, cstpcpyErr3RequiresViolation, cstpcpyErr1RequiresViolation, cstpcpyErr2RequiresViolation]=== [2018-02-04 04:03:41,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1371633307, now seen corresponding path program 1 times [2018-02-04 04:03:41,174 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:41,174 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:41,175 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:41,175 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:41,175 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:41,185 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:41,275 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 04:03:41,275 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:03:41,275 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 04:03:41,276 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 04:03:41,276 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 04:03:41,276 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-02-04 04:03:41,276 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 8 states. [2018-02-04 04:03:41,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:03:41,354 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2018-02-04 04:03:41,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 04:03:41,355 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-02-04 04:03:41,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:03:41,357 INFO L225 Difference]: With dead ends: 44 [2018-02-04 04:03:41,358 INFO L226 Difference]: Without dead ends: 44 [2018-02-04 04:03:41,358 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 [2018-02-04 04:03:41,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-02-04 04:03:41,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36. [2018-02-04 04:03:41,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-02-04 04:03:41,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2018-02-04 04:03:41,362 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 18 [2018-02-04 04:03:41,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:03:41,363 INFO L432 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2018-02-04 04:03:41,363 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 04:03:41,363 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2018-02-04 04:03:41,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 04:03:41,363 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:03:41,363 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:03:41,363 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, cstpcpyErr0RequiresViolation, cstpcpyErr3RequiresViolation, cstpcpyErr1RequiresViolation, cstpcpyErr2RequiresViolation]=== [2018-02-04 04:03:41,364 INFO L82 PathProgramCache]: Analyzing trace with hash -429040459, now seen corresponding path program 1 times [2018-02-04 04:03:41,364 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:03:41,364 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:03:41,365 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:41,365 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:03:41,365 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:03:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:03:41,378 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:03:41,385 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 04:03:41,388 INFO L168 Benchmark]: Toolchain (without parser) took 1274.12 ms. Allocated memory was 405.3 MB in the beginning and 617.1 MB in the end (delta: 211.8 MB). Free memory was 359.3 MB in the beginning and 513.8 MB in the end (delta: -154.4 MB). Peak memory consumption was 57.4 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:41,388 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 405.3 MB. Free memory is still 364.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:03:41,389 INFO L168 Benchmark]: CACSL2BoogieTranslator took 143.13 ms. Allocated memory is still 405.3 MB. Free memory was 359.3 MB in the beginning and 348.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:41,389 INFO L168 Benchmark]: Boogie Preprocessor took 19.71 ms. Allocated memory is still 405.3 MB. Free memory was 348.7 MB in the beginning and 346.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:41,389 INFO L168 Benchmark]: RCFGBuilder took 166.81 ms. Allocated memory is still 405.3 MB. Free memory was 346.1 MB in the beginning and 328.9 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:41,389 INFO L168 Benchmark]: TraceAbstraction took 941.97 ms. Allocated memory was 405.3 MB in the beginning and 617.1 MB in the end (delta: 211.8 MB). Free memory was 328.9 MB in the beginning and 513.8 MB in the end (delta: -184.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 5.3 GB. [2018-02-04 04:03:41,390 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 405.3 MB. Free memory is still 364.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 143.13 ms. Allocated memory is still 405.3 MB. Free memory was 359.3 MB in the beginning and 348.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 19.71 ms. Allocated memory is still 405.3 MB. Free memory was 348.7 MB in the beginning and 346.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 166.81 ms. Allocated memory is still 405.3 MB. Free memory was 346.1 MB in the beginning and 328.9 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 941.97 ms. Allocated memory was 405.3 MB in the beginning and 617.1 MB in the end (delta: 211.8 MB). Free memory was 328.9 MB in the beginning and 513.8 MB in the end (delta: -184.9 MB). Peak memory consumption was 26.9 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-0-2018-02-04_04-03-41-395.csv Received shutdown request...