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/memsafety/20051113-1.c_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-a74eeac-m [2018-02-02 21:01:51,925 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 21:01:51,926 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 21:01:51,939 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 21:01:51,939 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 21:01:51,940 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 21:01:51,940 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 21:01:51,942 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 21:01:51,943 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 21:01:51,944 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 21:01:51,945 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 21:01:51,945 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 21:01:51,946 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 21:01:51,947 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 21:01:51,947 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 21:01:51,949 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 21:01:51,951 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 21:01:51,952 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 21:01:51,953 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 21:01:51,954 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 21:01:51,956 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-02 21:01:51,956 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-02 21:01:51,956 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-02 21:01:51,957 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-02 21:01:51,958 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-02 21:01:51,959 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-02 21:01:51,959 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-02 21:01:51,959 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-02 21:01:51,960 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-02 21:01:51,960 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 21:01:51,960 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 21:01:51,960 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 [2018-02-02 21:01:51,969 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 21:01:51,970 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 21:01:51,971 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 21:01:51,971 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 21:01:51,971 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 21:01:51,971 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 21:01:51,971 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 21:01:51,971 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 21:01:51,971 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 21:01:51,971 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 21:01:51,972 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 21:01:51,972 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 21:01:51,972 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 21:01:51,972 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 21:01:51,972 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 21:01:51,972 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 21:01:51,972 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 21:01:51,972 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 21:01:51,972 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 21:01:51,972 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 21:01:51,973 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 21:01:51,973 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 21:01:51,973 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-02 21:01:51,973 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-02 21:01:51,973 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-02 21:01:51,999 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 21:01:52,007 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 21:01:52,009 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 21:01:52,010 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 21:01:52,011 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 21:01:52,011 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/20051113-1.c_false-valid-memtrack.i [2018-02-02 21:01:52,137 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 21:01:52,138 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 21:01:52,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 21:01:52,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 21:01:52,145 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 21:01:52,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:01:52" (1/1) ... [2018-02-02 21:01:52,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f3da0a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:01:52, skipping insertion in model container [2018-02-02 21:01:52,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:01:52" (1/1) ... [2018-02-02 21:01:52,163 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 21:01:52,192 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 21:01:52,288 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 21:01:52,301 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 21:01:52,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:01:52 WrapperNode [2018-02-02 21:01:52,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 21:01:52,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 21:01:52,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 21:01:52,307 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 21:01:52,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:01:52" (1/1) ... [2018-02-02 21:01:52,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:01:52" (1/1) ... [2018-02-02 21:01:52,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:01:52" (1/1) ... [2018-02-02 21:01:52,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:01:52" (1/1) ... [2018-02-02 21:01:52,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:01:52" (1/1) ... [2018-02-02 21:01:52,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:01:52" (1/1) ... [2018-02-02 21:01:52,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:01:52" (1/1) ... [2018-02-02 21:01:52,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 21:01:52,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 21:01:52,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 21:01:52,337 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 21:01:52,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:01:52" (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 21:01:52,370 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 21:01:52,371 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 21:01:52,371 INFO L136 BoogieDeclarations]: Found implementation of procedure Sum [2018-02-02 21:01:52,371 INFO L136 BoogieDeclarations]: Found implementation of procedure Sum2 [2018-02-02 21:01:52,371 INFO L136 BoogieDeclarations]: Found implementation of procedure dummy_abort [2018-02-02 21:01:52,371 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 21:01:52,371 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 21:01:52,371 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 21:01:52,371 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 21:01:52,371 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 21:01:52,371 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 21:01:52,372 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-02-02 21:01:52,372 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-02-02 21:01:52,372 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-02-02 21:01:52,372 INFO L128 BoogieDeclarations]: Found specification of procedure Sum [2018-02-02 21:01:52,372 INFO L128 BoogieDeclarations]: Found specification of procedure Sum2 [2018-02-02 21:01:52,372 INFO L128 BoogieDeclarations]: Found specification of procedure dummy_abort [2018-02-02 21:01:52,372 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 21:01:52,372 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 21:01:52,372 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 21:01:52,495 WARN L455 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-02-02 21:01:52,579 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 21:01:52,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:01:52 BoogieIcfgContainer [2018-02-02 21:01:52,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 21:01:52,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 21:01:52,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 21:01:52,581 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 21:01:52,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:01:52" (1/3) ... [2018-02-02 21:01:52,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ec73627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:01:52, skipping insertion in model container [2018-02-02 21:01:52,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:01:52" (2/3) ... [2018-02-02 21:01:52,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ec73627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:01:52, skipping insertion in model container [2018-02-02 21:01:52,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:01:52" (3/3) ... [2018-02-02 21:01:52,584 INFO L107 eAbstractionObserver]: Analyzing ICFG 20051113-1.c_false-valid-memtrack.i [2018-02-02 21:01:52,589 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-02 21:01:52,593 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 25 error locations. [2018-02-02 21:01:52,625 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 21:01:52,626 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 21:01:52,626 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-02 21:01:52,626 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-02 21:01:52,626 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 21:01:52,626 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 21:01:52,626 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 21:01:52,626 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 21:01:52,627 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 21:01:52,639 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2018-02-02 21:01:52,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-02 21:01:52,646 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:01:52,647 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:01:52,647 INFO L371 AbstractCegarLoop]: === Iteration 1 === [Sum2Err2RequiresViolation, Sum2Err0RequiresViolation, Sum2Err1RequiresViolation, Sum2Err3RequiresViolation, SumErr2RequiresViolation, SumErr3RequiresViolation, SumErr1RequiresViolation, SumErr0RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr16EnsuresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 21:01:52,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1274877597, now seen corresponding path program 1 times [2018-02-02 21:01:52,653 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:01:52,653 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:01:52,696 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:01:52,696 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:01:52,696 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:01:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:01:52,738 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:01:52,787 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 21:01:52,789 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:01:52,790 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 21:01:52,791 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 21:01:52,802 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 21:01:52,803 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 21:01:52,805 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 4 states. [2018-02-02 21:01:53,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:01:53,000 INFO L93 Difference]: Finished difference Result 72 states and 77 transitions. [2018-02-02 21:01:53,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 21:01:53,001 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-02 21:01:53,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:01:53,006 INFO L225 Difference]: With dead ends: 72 [2018-02-02 21:01:53,006 INFO L226 Difference]: Without dead ends: 69 [2018-02-02 21:01:53,007 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 21:01:53,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-02-02 21:01:53,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-02-02 21:01:53,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-02-02 21:01:53,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2018-02-02 21:01:53,032 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 8 [2018-02-02 21:01:53,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:01:53,032 INFO L432 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2018-02-02 21:01:53,032 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 21:01:53,033 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2018-02-02 21:01:53,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-02 21:01:53,033 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:01:53,033 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:01:53,033 INFO L371 AbstractCegarLoop]: === Iteration 2 === [Sum2Err2RequiresViolation, Sum2Err0RequiresViolation, Sum2Err1RequiresViolation, Sum2Err3RequiresViolation, SumErr2RequiresViolation, SumErr3RequiresViolation, SumErr1RequiresViolation, SumErr0RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr16EnsuresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 21:01:53,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1274877596, now seen corresponding path program 1 times [2018-02-02 21:01:53,033 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:01:53,033 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:01:53,034 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:01:53,034 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:01:53,034 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:01:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:01:53,043 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:01:53,079 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 21:01:53,080 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:01:53,080 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 21:01:53,081 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 21:01:53,081 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 21:01:53,081 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 21:01:53,081 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand 4 states. [2018-02-02 21:01:53,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:01:53,166 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2018-02-02 21:01:53,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 21:01:53,166 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-02 21:01:53,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:01:53,167 INFO L225 Difference]: With dead ends: 61 [2018-02-02 21:01:53,167 INFO L226 Difference]: Without dead ends: 61 [2018-02-02 21:01:53,168 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 21:01:53,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-02-02 21:01:53,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-02-02 21:01:53,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-02-02 21:01:53,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2018-02-02 21:01:53,174 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 8 [2018-02-02 21:01:53,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:01:53,174 INFO L432 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2018-02-02 21:01:53,174 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 21:01:53,174 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2018-02-02 21:01:53,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-02 21:01:53,175 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:01:53,175 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:01:53,175 INFO L371 AbstractCegarLoop]: === Iteration 3 === [Sum2Err2RequiresViolation, Sum2Err0RequiresViolation, Sum2Err1RequiresViolation, Sum2Err3RequiresViolation, SumErr2RequiresViolation, SumErr3RequiresViolation, SumErr1RequiresViolation, SumErr0RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr16EnsuresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 21:01:53,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1852712777, now seen corresponding path program 1 times [2018-02-02 21:01:53,175 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:01:53,176 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:01:53,176 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:01:53,177 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:01:53,177 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:01:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:01:53,198 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:01:53,241 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 21:01:53,241 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:01:53,241 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 21:01:53,242 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 21:01:53,242 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 21:01:53,242 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 21:01:53,242 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand 5 states. [2018-02-02 21:01:53,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:01:53,302 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2018-02-02 21:01:53,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 21:01:53,302 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-02-02 21:01:53,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:01:53,303 INFO L225 Difference]: With dead ends: 59 [2018-02-02 21:01:53,303 INFO L226 Difference]: Without dead ends: 59 [2018-02-02 21:01:53,303 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 21:01:53,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-02-02 21:01:53,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-02-02 21:01:53,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-02-02 21:01:53,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 64 transitions. [2018-02-02 21:01:53,309 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 64 transitions. Word has length 25 [2018-02-02 21:01:53,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:01:53,309 INFO L432 AbstractCegarLoop]: Abstraction has 59 states and 64 transitions. [2018-02-02 21:01:53,309 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 21:01:53,309 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 64 transitions. [2018-02-02 21:01:53,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-02 21:01:53,310 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:01:53,310 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:01:53,310 INFO L371 AbstractCegarLoop]: === Iteration 4 === [Sum2Err2RequiresViolation, Sum2Err0RequiresViolation, Sum2Err1RequiresViolation, Sum2Err3RequiresViolation, SumErr2RequiresViolation, SumErr3RequiresViolation, SumErr1RequiresViolation, SumErr0RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr16EnsuresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 21:01:53,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1852712776, now seen corresponding path program 1 times [2018-02-02 21:01:53,310 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:01:53,311 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:01:53,312 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:01:53,312 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:01:53,312 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:01:53,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:01:53,328 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:01:53,402 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 21:01:53,402 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 21:01:53,402 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 21:01:53,403 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 21:01:53,403 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 21:01:53,403 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-02 21:01:53,403 INFO L87 Difference]: Start difference. First operand 59 states and 64 transitions. Second operand 6 states. [2018-02-02 21:01:53,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 21:01:53,483 INFO L93 Difference]: Finished difference Result 58 states and 63 transitions. [2018-02-02 21:01:53,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 21:01:53,483 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-02-02 21:01:53,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 21:01:53,484 INFO L225 Difference]: With dead ends: 58 [2018-02-02 21:01:53,484 INFO L226 Difference]: Without dead ends: 58 [2018-02-02 21:01:53,484 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-02-02 21:01:53,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-02-02 21:01:53,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-02-02 21:01:53,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-02-02 21:01:53,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2018-02-02 21:01:53,488 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 25 [2018-02-02 21:01:53,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 21:01:53,488 INFO L432 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2018-02-02 21:01:53,489 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 21:01:53,489 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2018-02-02 21:01:53,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-02-02 21:01:53,490 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 21:01:53,490 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 21:01:53,490 INFO L371 AbstractCegarLoop]: === Iteration 5 === [Sum2Err2RequiresViolation, Sum2Err0RequiresViolation, Sum2Err1RequiresViolation, Sum2Err3RequiresViolation, SumErr2RequiresViolation, SumErr3RequiresViolation, SumErr1RequiresViolation, SumErr0RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr16EnsuresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation]=== [2018-02-02 21:01:53,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1954449657, now seen corresponding path program 1 times [2018-02-02 21:01:53,490 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-02 21:01:53,490 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-02 21:01:53,491 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:01:53,491 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-02 21:01:53,491 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-02 21:01:53,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 21:01:53,523 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 21:01:53,537 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) [2018-02-02 21:01:53,539 INFO L168 Benchmark]: Toolchain (without parser) took 1401.91 ms. Allocated memory was 402.7 MB in the beginning and 606.1 MB in the end (delta: 203.4 MB). Free memory was 359.3 MB in the beginning and 481.7 MB in the end (delta: -122.4 MB). Peak memory consumption was 81.0 MB. Max. memory is 5.3 GB. [2018-02-02 21:01:53,540 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 402.7 MB. Free memory is still 364.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 21:01:53,540 INFO L168 Benchmark]: CACSL2BoogieTranslator took 167.22 ms. Allocated memory is still 402.7 MB. Free memory was 359.3 MB in the beginning and 348.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-02 21:01:53,540 INFO L168 Benchmark]: Boogie Preprocessor took 29.90 ms. Allocated memory is still 402.7 MB. Free memory was 348.8 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. [2018-02-02 21:01:53,540 INFO L168 Benchmark]: RCFGBuilder took 242.60 ms. Allocated memory is still 402.7 MB. Free memory was 346.1 MB in the beginning and 320.8 MB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 5.3 GB. [2018-02-02 21:01:53,541 INFO L168 Benchmark]: TraceAbstraction took 959.34 ms. Allocated memory was 402.7 MB in the beginning and 606.1 MB in the end (delta: 203.4 MB). Free memory was 320.8 MB in the beginning and 481.7 MB in the end (delta: -160.9 MB). Peak memory consumption was 42.5 MB. Max. memory is 5.3 GB. [2018-02-02 21:01:53,542 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 402.7 MB. Free memory is still 364.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 167.22 ms. Allocated memory is still 402.7 MB. Free memory was 359.3 MB in the beginning and 348.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 29.90 ms. Allocated memory is still 402.7 MB. Free memory was 348.8 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 242.60 ms. Allocated memory is still 402.7 MB. Free memory was 346.1 MB in the beginning and 320.8 MB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 959.34 ms. Allocated memory was 402.7 MB in the beginning and 606.1 MB in the end (delta: 203.4 MB). Free memory was 320.8 MB in the beginning and 481.7 MB in the end (delta: -160.9 MB). Peak memory consumption was 42.5 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/20051113-1.c_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_21-01-53-546.csv Received shutdown request...