java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/list-ext-properties/960521-1_1_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-26d9e06-m [2018-02-02 10:40:33,982 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 10:40:33,984 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 10:40:33,996 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 10:40:33,996 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 10:40:33,997 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 10:40:33,998 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 10:40:33,999 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 10:40:34,001 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 10:40:34,002 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 10:40:34,002 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 10:40:34,003 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 10:40:34,004 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 10:40:34,005 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 10:40:34,005 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 10:40:34,007 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 10:40:34,009 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 10:40:34,010 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 10:40:34,011 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 10:40:34,012 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 10:40:34,014 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-02 10:40:34,018 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-02 10:40:34,027 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 10:40:34,027 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 10:40:34,028 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 10:40:34,028 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 10:40:34,028 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 10:40:34,029 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 10:40:34,029 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 10:40:34,029 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 10:40:34,029 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 10:40:34,029 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 10:40:34,029 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 10:40:34,029 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 10:40:34,029 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 10:40:34,029 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 10:40:34,029 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 10:40:34,030 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 10:40:34,030 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 10:40:34,030 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 10:40:34,030 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 10:40:34,030 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 10:40:34,030 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 10:40:34,030 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 10:40:34,030 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-02-02 10:40:34,030 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol_NoArrayInterpol [2018-02-02 10:40:34,055 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 10:40:34,063 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 10:40:34,066 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 10:40:34,067 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 10:40:34,067 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 10:40:34,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/960521-1_1_false-valid-deref.i [2018-02-02 10:40:34,178 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 10:40:34,180 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 10:40:34,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 10:40:34,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 10:40:34,186 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 10:40:34,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:40:34" (1/1) ... [2018-02-02 10:40:34,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3064535d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:34, skipping insertion in model container [2018-02-02 10:40:34,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:40:34" (1/1) ... [2018-02-02 10:40:34,204 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:40:34,233 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:40:34,320 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:40:34,332 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:40:34,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:34 WrapperNode [2018-02-02 10:40:34,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 10:40:34,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 10:40:34,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 10:40:34,338 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 10:40:34,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:34" (1/1) ... [2018-02-02 10:40:34,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:34" (1/1) ... [2018-02-02 10:40:34,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:34" (1/1) ... [2018-02-02 10:40:34,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:34" (1/1) ... [2018-02-02 10:40:34,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:34" (1/1) ... [2018-02-02 10:40:34,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:34" (1/1) ... [2018-02-02 10:40:34,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:34" (1/1) ... [2018-02-02 10:40:34,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 10:40:34,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 10:40:34,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 10:40:34,363 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 10:40:34,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:34" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 10:40:34,402 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 10:40:34,402 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 10:40:34,402 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-02-02 10:40:34,402 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 10:40:34,402 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 10:40:34,403 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 10:40:34,403 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 10:40:34,403 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 10:40:34,403 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 10:40:34,403 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 10:40:34,403 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 10:40:34,403 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 10:40:34,403 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-02-02 10:40:34,404 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 10:40:34,404 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 10:40:34,404 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 10:40:34,581 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 10:40:34,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:40:34 BoogieIcfgContainer [2018-02-02 10:40:34,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 10:40:34,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 10:40:34,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 10:40:34,584 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 10:40:34,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 10:40:34" (1/3) ... [2018-02-02 10:40:34,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1772bf8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:40:34, skipping insertion in model container [2018-02-02 10:40:34,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:40:34" (2/3) ... [2018-02-02 10:40:34,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1772bf8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:40:34, skipping insertion in model container [2018-02-02 10:40:34,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:40:34" (3/3) ... [2018-02-02 10:40:34,587 INFO L107 eAbstractionObserver]: Analyzing ICFG 960521-1_1_false-valid-deref.i [2018-02-02 10:40:34,592 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-02 10:40:34,597 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2018-02-02 10:40:34,621 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 10:40:34,621 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 10:40:34,621 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-02-02 10:40:34,621 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-02 10:40:34,621 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 10:40:34,622 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 10:40:34,622 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 10:40:34,622 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 10:40:34,622 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 10:40:34,630 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2018-02-02 10:40:34,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-02-02 10:40:34,637 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:40:34,637 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:40:34,638 INFO L371 AbstractCegarLoop]: === Iteration 1 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr12EnsuresViolation]=== [2018-02-02 10:40:34,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1352732268, now seen corresponding path program 1 times [2018-02-02 10:40:34,678 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:40:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:40:34,714 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:40:34,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:40:34,745 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:40:34,745 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 10:40:34,746 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:40:34,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:40:34,747 INFO L182 omatonBuilderFactory]: Interpolants [59#true, 60#false] [2018-02-02 10:40:34,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:40:34,748 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-02-02 10:40:34,760 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-02-02 10:40:34,761 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-02-02 10:40:34,763 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2018-02-02 10:40:34,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:40:34,779 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2018-02-02 10:40:34,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-02-02 10:40:34,780 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-02-02 10:40:34,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:40:34,785 INFO L225 Difference]: With dead ends: 56 [2018-02-02 10:40:34,786 INFO L226 Difference]: Without dead ends: 53 [2018-02-02 10:40:34,787 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-02-02 10:40:34,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-02-02 10:40:34,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-02-02 10:40:34,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-02-02 10:40:34,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2018-02-02 10:40:34,877 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 12 [2018-02-02 10:40:34,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:40:34,877 INFO L432 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2018-02-02 10:40:34,877 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-02-02 10:40:34,877 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2018-02-02 10:40:34,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 10:40:34,877 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:40:34,877 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:40:34,877 INFO L371 AbstractCegarLoop]: === Iteration 2 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr12EnsuresViolation]=== [2018-02-02 10:40:34,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1000920166, now seen corresponding path program 1 times [2018-02-02 10:40:34,879 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:40:34,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:40:34,900 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:40:34,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:40:34,943 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:40:34,943 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 10:40:34,943 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:40:34,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:40:34,943 INFO L182 omatonBuilderFactory]: Interpolants [170#true, 171#false, 172#(= 1 (select |#valid| |main_#t~malloc7.base|)), 173#(= 1 (select |#valid| |main_#t~post8.base|))] [2018-02-02 10:40:34,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:40:34,944 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 10:40:34,945 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 10:40:34,945 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 10:40:34,945 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand 4 states. [2018-02-02 10:40:35,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:40:35,043 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-02-02 10:40:35,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 10:40:35,044 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-02-02 10:40:35,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:40:35,045 INFO L225 Difference]: With dead ends: 52 [2018-02-02 10:40:35,045 INFO L226 Difference]: Without dead ends: 52 [2018-02-02 10:40:35,046 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:40:35,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-02-02 10:40:35,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-02-02 10:40:35,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-02-02 10:40:35,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2018-02-02 10:40:35,052 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 14 [2018-02-02 10:40:35,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:40:35,052 INFO L432 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2018-02-02 10:40:35,052 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 10:40:35,052 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2018-02-02 10:40:35,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 10:40:35,053 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:40:35,053 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:40:35,053 INFO L371 AbstractCegarLoop]: === Iteration 3 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr12EnsuresViolation]=== [2018-02-02 10:40:35,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1000920165, now seen corresponding path program 1 times [2018-02-02 10:40:35,054 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:40:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:40:35,072 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:40:35,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:40:35,134 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:40:35,134 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 10:40:35,134 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:40:35,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:40:35,134 INFO L182 omatonBuilderFactory]: Interpolants [280#true, 281#false, 282#(<= 1 ~n), 283#(and (= 0 |main_#t~malloc7.offset|) (<= 4 (select |#length| |main_#t~malloc7.base|))), 284#(and (= |main_#t~post8.offset| 0) (<= 4 (select |#length| |main_#t~post8.base|)))] [2018-02-02 10:40:35,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:40:35,134 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 10:40:35,135 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 10:40:35,135 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:40:35,135 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand 5 states. [2018-02-02 10:40:35,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:40:35,199 INFO L93 Difference]: Finished difference Result 51 states and 54 transitions. [2018-02-02 10:40:35,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 10:40:35,199 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-02-02 10:40:35,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:40:35,200 INFO L225 Difference]: With dead ends: 51 [2018-02-02 10:40:35,200 INFO L226 Difference]: Without dead ends: 51 [2018-02-02 10:40:35,201 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-02-02 10:40:35,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-02-02 10:40:35,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-02-02 10:40:35,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-02-02 10:40:35,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 54 transitions. [2018-02-02 10:40:35,205 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 54 transitions. Word has length 14 [2018-02-02 10:40:35,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:40:35,205 INFO L432 AbstractCegarLoop]: Abstraction has 51 states and 54 transitions. [2018-02-02 10:40:35,205 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 10:40:35,205 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 54 transitions. [2018-02-02 10:40:35,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-02 10:40:35,206 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:40:35,206 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:40:35,206 INFO L371 AbstractCegarLoop]: === Iteration 4 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr12EnsuresViolation]=== [2018-02-02 10:40:35,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1559748963, now seen corresponding path program 1 times [2018-02-02 10:40:35,207 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:40:35,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:40:35,221 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:40:35,227 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Unknown lemma type! at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$1(Interpolator.java:263) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:132) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:220) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:915) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedTraceAbstractionRefinementStrategy.getTraceCheck(FixedTraceAbstractionRefinementStrategy.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:397) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-02-02 10:40:35,233 INFO L168 Benchmark]: Toolchain (without parser) took 1054.30 ms. Allocated memory was 399.0 MB in the beginning and 607.6 MB in the end (delta: 208.7 MB). Free memory was 355.7 MB in the beginning and 541.9 MB in the end (delta: -186.2 MB). Peak memory consumption was 22.5 MB. Max. memory is 5.3 GB. [2018-02-02 10:40:35,234 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 399.0 MB. Free memory is still 362.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 10:40:35,235 INFO L168 Benchmark]: CACSL2BoogieTranslator took 157.02 ms. Allocated memory is still 399.0 MB. Free memory was 355.7 MB in the beginning and 345.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 5.3 GB. [2018-02-02 10:40:35,235 INFO L168 Benchmark]: Boogie Preprocessor took 24.45 ms. Allocated memory is still 399.0 MB. Free memory was 345.0 MB in the beginning and 343.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-02 10:40:35,235 INFO L168 Benchmark]: RCFGBuilder took 218.96 ms. Allocated memory is still 399.0 MB. Free memory was 343.7 MB in the beginning and 323.8 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 5.3 GB. [2018-02-02 10:40:35,235 INFO L168 Benchmark]: TraceAbstraction took 650.71 ms. Allocated memory was 399.0 MB in the beginning and 607.6 MB in the end (delta: 208.7 MB). Free memory was 323.8 MB in the beginning and 541.9 MB in the end (delta: -218.1 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 10:40:35,237 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 399.0 MB. Free memory is still 362.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 157.02 ms. Allocated memory is still 399.0 MB. Free memory was 355.7 MB in the beginning and 345.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 24.45 ms. Allocated memory is still 399.0 MB. Free memory was 345.0 MB in the beginning and 343.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 218.96 ms. Allocated memory is still 399.0 MB. Free memory was 343.7 MB in the beginning and 323.8 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 650.71 ms. Allocated memory was 399.0 MB in the beginning and 607.6 MB in the end (delta: 208.7 MB). Free memory was 323.8 MB in the beginning and 541.9 MB in the end (delta: -218.1 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Unknown lemma type! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Unknown lemma type!: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/960521-1_1_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_10-40-35-243.csv Received shutdown request...