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/heap-manipulation/dancing_true-unreach-call_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-26d9e06-m [2018-02-02 10:49:06,410 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 10:49:06,411 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 10:49:06,424 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 10:49:06,424 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 10:49:06,425 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 10:49:06,426 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 10:49:06,427 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 10:49:06,429 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 10:49:06,429 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 10:49:06,430 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 10:49:06,430 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 10:49:06,431 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 10:49:06,432 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 10:49:06,433 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 10:49:06,435 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 10:49:06,436 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 10:49:06,438 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 10:49:06,439 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 10:49:06,440 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 10:49:06,441 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-02 10:49:06,445 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 10:49:06,446 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 10:49:06,446 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 10:49:06,455 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 10:49:06,456 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 10:49:06,456 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 10:49:06,457 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 10:49:06,457 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 10:49:06,457 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 10:49:06,457 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 10:49:06,457 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 10:49:06,457 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 10:49:06,457 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 10:49:06,457 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 10:49:06,458 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 10:49:06,458 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 10:49:06,458 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 10:49:06,458 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 10:49:06,458 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 10:49:06,458 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 10:49:06,458 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 10:49:06,458 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 10:49:06,459 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 10:49:06,459 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 10:49:06,459 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 10:49:06,459 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-02-02 10:49:06,459 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol_NoArrayInterpol [2018-02-02 10:49:06,485 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 10:49:06,492 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 10:49:06,494 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 10:49:06,495 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 10:49:06,495 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 10:49:06,496 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dancing_true-unreach-call_false-valid-memtrack.i [2018-02-02 10:49:06,601 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 10:49:06,602 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 10:49:06,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 10:49:06,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 10:49:06,609 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 10:49:06,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:49:06" (1/1) ... [2018-02-02 10:49:06,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@672ee78f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:49:06, skipping insertion in model container [2018-02-02 10:49:06,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:49:06" (1/1) ... [2018-02-02 10:49:06,627 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:49:06,654 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:49:06,736 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:49:06,750 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:49:06,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:49:06 WrapperNode [2018-02-02 10:49:06,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 10:49:06,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 10:49:06,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 10:49:06,755 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 10:49:06,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:49:06" (1/1) ... [2018-02-02 10:49:06,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:49:06" (1/1) ... [2018-02-02 10:49:06,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:49:06" (1/1) ... [2018-02-02 10:49:06,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:49:06" (1/1) ... [2018-02-02 10:49:06,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:49:06" (1/1) ... [2018-02-02 10:49:06,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:49:06" (1/1) ... [2018-02-02 10:49:06,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:49:06" (1/1) ... [2018-02-02 10:49:06,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 10:49:06,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 10:49:06,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 10:49:06,779 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 10:49:06,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:49:06" (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 10:49:06,813 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 10:49:06,813 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 10:49:06,813 INFO L136 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-02-02 10:49:06,814 INFO L136 BoogieDeclarations]: Found implementation of procedure remove [2018-02-02 10:49:06,814 INFO L136 BoogieDeclarations]: Found implementation of procedure re_insert [2018-02-02 10:49:06,814 INFO L136 BoogieDeclarations]: Found implementation of procedure is_list_containing_x [2018-02-02 10:49:06,814 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 10:49:06,814 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-02 10:49:06,814 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-02 10:49:06,814 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 10:49:06,814 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 10:49:06,814 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 10:49:06,814 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-02-02 10:49:06,814 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2018-02-02 10:49:06,814 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-02-02 10:49:06,814 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-02-02 10:49:06,815 INFO L128 BoogieDeclarations]: Found specification of procedure remove [2018-02-02 10:49:06,815 INFO L128 BoogieDeclarations]: Found specification of procedure re_insert [2018-02-02 10:49:06,815 INFO L128 BoogieDeclarations]: Found specification of procedure is_list_containing_x [2018-02-02 10:49:06,815 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 10:49:06,815 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 10:49:06,815 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 10:49:07,115 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 10:49:07,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:49:07 BoogieIcfgContainer [2018-02-02 10:49:07,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 10:49:07,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 10:49:07,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 10:49:07,120 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 10:49:07,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 10:49:06" (1/3) ... [2018-02-02 10:49:07,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240c685e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:49:07, skipping insertion in model container [2018-02-02 10:49:07,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:49:06" (2/3) ... [2018-02-02 10:49:07,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240c685e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:49:07, skipping insertion in model container [2018-02-02 10:49:07,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:49:07" (3/3) ... [2018-02-02 10:49:07,123 INFO L107 eAbstractionObserver]: Analyzing ICFG dancing_true-unreach-call_false-valid-memtrack.i [2018-02-02 10:49:07,133 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-02 10:49:07,142 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 43 error locations. [2018-02-02 10:49:07,182 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 10:49:07,182 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 10:49:07,182 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-02-02 10:49:07,183 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-02 10:49:07,183 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 10:49:07,183 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 10:49:07,183 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 10:49:07,183 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 10:49:07,184 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 10:49:07,198 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states. [2018-02-02 10:49:07,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-02-02 10:49:07,206 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:49:07,207 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:49:07,207 INFO L371 AbstractCegarLoop]: === Iteration 1 === [re_insertErr7RequiresViolation, re_insertErr5RequiresViolation, re_insertErr2RequiresViolation, re_insertErr3RequiresViolation, re_insertErr9RequiresViolation, re_insertErr6RequiresViolation, re_insertErr8RequiresViolation, re_insertErr4RequiresViolation, re_insertErr11RequiresViolation, re_insertErr0RequiresViolation, re_insertErr1RequiresViolation, re_insertErr10RequiresViolation, mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr9RequiresViolation, mainErr8RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr10EnsuresViolation, is_list_containing_xErr1RequiresViolation, is_list_containing_xErr0RequiresViolation, is_list_containing_xErr2RequiresViolation, is_list_containing_xErr3RequiresViolation, removeErr9RequiresViolation, removeErr13RequiresViolation, removeErr0RequiresViolation, removeErr4RequiresViolation, removeErr5RequiresViolation, removeErr12RequiresViolation, removeErr10RequiresViolation, removeErr6RequiresViolation, removeErr14RequiresViolation, removeErr3RequiresViolation, removeErr1RequiresViolation, removeErr8RequiresViolation, removeErr11RequiresViolation, removeErr7RequiresViolation, removeErr15RequiresViolation, removeErr2RequiresViolation]=== [2018-02-02 10:49:07,211 INFO L82 PathProgramCache]: Analyzing trace with hash 436525791, now seen corresponding path program 1 times [2018-02-02 10:49:07,252 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:49:07,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:49:07,280 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:49:07,321 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 10:49:07,322 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:49:07,323 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 10:49:07,323 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:49:07,324 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 10:49:07,324 INFO L182 omatonBuilderFactory]: Interpolants [125#true, 126#false, 127#(= 1 (select |#valid| |main_~#list~0.base|))] [2018-02-02 10:49:07,324 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 10:49:07,325 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 10:49:07,333 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 10:49:07,333 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 10:49:07,335 INFO L87 Difference]: Start difference. First operand 122 states. Second operand 3 states. [2018-02-02 10:49:07,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:49:07,520 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2018-02-02 10:49:07,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 10:49:07,521 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-02-02 10:49:07,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:49:07,530 INFO L225 Difference]: With dead ends: 120 [2018-02-02 10:49:07,530 INFO L226 Difference]: Without dead ends: 116 [2018-02-02 10:49:07,531 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 10:49:07,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-02-02 10:49:07,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2018-02-02 10:49:07,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-02-02 10:49:07,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 129 transitions. [2018-02-02 10:49:07,557 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 129 transitions. Word has length 7 [2018-02-02 10:49:07,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:49:07,558 INFO L432 AbstractCegarLoop]: Abstraction has 116 states and 129 transitions. [2018-02-02 10:49:07,558 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 10:49:07,558 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 129 transitions. [2018-02-02 10:49:07,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-02-02 10:49:07,558 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:49:07,558 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:49:07,558 INFO L371 AbstractCegarLoop]: === Iteration 2 === [re_insertErr7RequiresViolation, re_insertErr5RequiresViolation, re_insertErr2RequiresViolation, re_insertErr3RequiresViolation, re_insertErr9RequiresViolation, re_insertErr6RequiresViolation, re_insertErr8RequiresViolation, re_insertErr4RequiresViolation, re_insertErr11RequiresViolation, re_insertErr0RequiresViolation, re_insertErr1RequiresViolation, re_insertErr10RequiresViolation, mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr9RequiresViolation, mainErr8RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr10EnsuresViolation, is_list_containing_xErr1RequiresViolation, is_list_containing_xErr0RequiresViolation, is_list_containing_xErr2RequiresViolation, is_list_containing_xErr3RequiresViolation, removeErr9RequiresViolation, removeErr13RequiresViolation, removeErr0RequiresViolation, removeErr4RequiresViolation, removeErr5RequiresViolation, removeErr12RequiresViolation, removeErr10RequiresViolation, removeErr6RequiresViolation, removeErr14RequiresViolation, removeErr3RequiresViolation, removeErr1RequiresViolation, removeErr8RequiresViolation, removeErr11RequiresViolation, removeErr7RequiresViolation, removeErr15RequiresViolation, removeErr2RequiresViolation]=== [2018-02-02 10:49:07,559 INFO L82 PathProgramCache]: Analyzing trace with hash 436525792, now seen corresponding path program 1 times [2018-02-02 10:49:07,559 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:49:07,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:49:07,567 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:49:07,595 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 10:49:07,595 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:49:07,595 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-02 10:49:07,595 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:49:07,596 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 10:49:07,596 INFO L182 omatonBuilderFactory]: Interpolants [364#true, 365#false, 366#(and (= (select |#length| |main_~#list~0.base|) 8) (= |main_~#list~0.offset| 0))] [2018-02-02 10:49:07,596 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 10:49:07,597 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 10:49:07,597 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 10:49:07,597 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 10:49:07,598 INFO L87 Difference]: Start difference. First operand 116 states and 129 transitions. Second operand 3 states. [2018-02-02 10:49:07,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:49:07,687 INFO L93 Difference]: Finished difference Result 114 states and 127 transitions. [2018-02-02 10:49:07,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 10:49:07,687 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-02-02 10:49:07,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:49:07,688 INFO L225 Difference]: With dead ends: 114 [2018-02-02 10:49:07,688 INFO L226 Difference]: Without dead ends: 114 [2018-02-02 10:49:07,689 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 10:49:07,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-02-02 10:49:07,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2018-02-02 10:49:07,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-02-02 10:49:07,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 127 transitions. [2018-02-02 10:49:07,697 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 127 transitions. Word has length 7 [2018-02-02 10:49:07,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:49:07,698 INFO L432 AbstractCegarLoop]: Abstraction has 114 states and 127 transitions. [2018-02-02 10:49:07,698 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 10:49:07,698 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 127 transitions. [2018-02-02 10:49:07,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-02 10:49:07,699 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:49:07,699 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:49:07,699 INFO L371 AbstractCegarLoop]: === Iteration 3 === [re_insertErr7RequiresViolation, re_insertErr5RequiresViolation, re_insertErr2RequiresViolation, re_insertErr3RequiresViolation, re_insertErr9RequiresViolation, re_insertErr6RequiresViolation, re_insertErr8RequiresViolation, re_insertErr4RequiresViolation, re_insertErr11RequiresViolation, re_insertErr0RequiresViolation, re_insertErr1RequiresViolation, re_insertErr10RequiresViolation, mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr9RequiresViolation, mainErr8RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr10EnsuresViolation, is_list_containing_xErr1RequiresViolation, is_list_containing_xErr0RequiresViolation, is_list_containing_xErr2RequiresViolation, is_list_containing_xErr3RequiresViolation, removeErr9RequiresViolation, removeErr13RequiresViolation, removeErr0RequiresViolation, removeErr4RequiresViolation, removeErr5RequiresViolation, removeErr12RequiresViolation, removeErr10RequiresViolation, removeErr6RequiresViolation, removeErr14RequiresViolation, removeErr3RequiresViolation, removeErr1RequiresViolation, removeErr8RequiresViolation, removeErr11RequiresViolation, removeErr7RequiresViolation, removeErr15RequiresViolation, removeErr2RequiresViolation]=== [2018-02-02 10:49:07,699 INFO L82 PathProgramCache]: Analyzing trace with hash -711243012, now seen corresponding path program 1 times [2018-02-02 10:49:07,700 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:49:07,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:49:07,714 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:49:07,766 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 10:49:07,766 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:49:07,767 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 10:49:07,767 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:49:07,767 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 10:49:07,767 INFO L182 omatonBuilderFactory]: Interpolants [595#true, 596#false, 597#(and (= main_~x~0.base |main_~#list~0.base|) (= |main_~#list~0.offset| main_~x~0.offset)), 598#(and (= |is_list_containing_x_#in~x.base| |is_list_containing_x_#in~l.base|) (= |is_list_containing_x_#in~l.offset| |is_list_containing_x_#in~x.offset|)), 599#(and (= is_list_containing_x_~x.offset is_list_containing_x_~l.offset) (= is_list_containing_x_~l.base is_list_containing_x_~x.base))] [2018-02-02 10:49:07,767 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 10:49:07,768 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 10:49:07,768 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 10:49:07,768 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 10:49:07,768 INFO L87 Difference]: Start difference. First operand 114 states and 127 transitions. Second operand 5 states. [2018-02-02 10:49:07,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:49:07,838 INFO L93 Difference]: Finished difference Result 150 states and 176 transitions. [2018-02-02 10:49:07,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 10:49:07,838 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-02-02 10:49:07,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:49:07,841 INFO L225 Difference]: With dead ends: 150 [2018-02-02 10:49:07,841 INFO L226 Difference]: Without dead ends: 150 [2018-02-02 10:49:07,842 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-02-02 10:49:07,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-02-02 10:49:07,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 138. [2018-02-02 10:49:07,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-02-02 10:49:07,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 166 transitions. [2018-02-02 10:49:07,854 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 166 transitions. Word has length 15 [2018-02-02 10:49:07,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:49:07,854 INFO L432 AbstractCegarLoop]: Abstraction has 138 states and 166 transitions. [2018-02-02 10:49:07,854 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 10:49:07,855 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 166 transitions. [2018-02-02 10:49:07,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-02 10:49:07,855 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:49:07,855 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:49:07,855 INFO L371 AbstractCegarLoop]: === Iteration 4 === [re_insertErr7RequiresViolation, re_insertErr5RequiresViolation, re_insertErr2RequiresViolation, re_insertErr3RequiresViolation, re_insertErr9RequiresViolation, re_insertErr6RequiresViolation, re_insertErr8RequiresViolation, re_insertErr4RequiresViolation, re_insertErr11RequiresViolation, re_insertErr0RequiresViolation, re_insertErr1RequiresViolation, re_insertErr10RequiresViolation, mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr9RequiresViolation, mainErr8RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr10EnsuresViolation, is_list_containing_xErr1RequiresViolation, is_list_containing_xErr0RequiresViolation, is_list_containing_xErr2RequiresViolation, is_list_containing_xErr3RequiresViolation, removeErr9RequiresViolation, removeErr13RequiresViolation, removeErr0RequiresViolation, removeErr4RequiresViolation, removeErr5RequiresViolation, removeErr12RequiresViolation, removeErr10RequiresViolation, removeErr6RequiresViolation, removeErr14RequiresViolation, removeErr3RequiresViolation, removeErr1RequiresViolation, removeErr8RequiresViolation, removeErr11RequiresViolation, removeErr7RequiresViolation, removeErr15RequiresViolation, removeErr2RequiresViolation]=== [2018-02-02 10:49:07,856 INFO L82 PathProgramCache]: Analyzing trace with hash -714029430, now seen corresponding path program 1 times [2018-02-02 10:49:07,856 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:49:07,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:49:07,870 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:49:07,894 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 10:49:07,895 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:49:07,895 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 10:49:07,895 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:49:07,895 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 10:49:07,895 INFO L182 omatonBuilderFactory]: Interpolants [890#true, 891#false, 892#(= 1 (select |#valid| |main_#t~malloc21.base|)), 893#(= 1 (select |#valid| main_~n~0.base))] [2018-02-02 10:49:07,896 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 10:49:07,896 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 10:49:07,896 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 10:49:07,896 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 10:49:07,896 INFO L87 Difference]: Start difference. First operand 138 states and 166 transitions. Second operand 4 states. [2018-02-02 10:49:08,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:49:08,044 INFO L93 Difference]: Finished difference Result 154 states and 189 transitions. [2018-02-02 10:49:08,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 10:49:08,045 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-02-02 10:49:08,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:49:08,046 INFO L225 Difference]: With dead ends: 154 [2018-02-02 10:49:08,046 INFO L226 Difference]: Without dead ends: 154 [2018-02-02 10:49:08,046 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 10:49:08,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-02-02 10:49:08,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 136. [2018-02-02 10:49:08,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-02-02 10:49:08,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 162 transitions. [2018-02-02 10:49:08,056 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 162 transitions. Word has length 15 [2018-02-02 10:49:08,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:49:08,056 INFO L432 AbstractCegarLoop]: Abstraction has 136 states and 162 transitions. [2018-02-02 10:49:08,056 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 10:49:08,056 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 162 transitions. [2018-02-02 10:49:08,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-02 10:49:08,057 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:49:08,057 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:49:08,057 INFO L371 AbstractCegarLoop]: === Iteration 5 === [re_insertErr7RequiresViolation, re_insertErr5RequiresViolation, re_insertErr2RequiresViolation, re_insertErr3RequiresViolation, re_insertErr9RequiresViolation, re_insertErr6RequiresViolation, re_insertErr8RequiresViolation, re_insertErr4RequiresViolation, re_insertErr11RequiresViolation, re_insertErr0RequiresViolation, re_insertErr1RequiresViolation, re_insertErr10RequiresViolation, mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr9RequiresViolation, mainErr8RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr10EnsuresViolation, is_list_containing_xErr1RequiresViolation, is_list_containing_xErr0RequiresViolation, is_list_containing_xErr2RequiresViolation, is_list_containing_xErr3RequiresViolation, removeErr9RequiresViolation, removeErr13RequiresViolation, removeErr0RequiresViolation, removeErr4RequiresViolation, removeErr5RequiresViolation, removeErr12RequiresViolation, removeErr10RequiresViolation, removeErr6RequiresViolation, removeErr14RequiresViolation, removeErr3RequiresViolation, removeErr1RequiresViolation, removeErr8RequiresViolation, removeErr11RequiresViolation, removeErr7RequiresViolation, removeErr15RequiresViolation, removeErr2RequiresViolation]=== [2018-02-02 10:49:08,057 INFO L82 PathProgramCache]: Analyzing trace with hash -714029429, now seen corresponding path program 1 times [2018-02-02 10:49:08,058 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:49:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:49:08,070 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:49:08,125 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 10:49:08,125 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:49:08,125 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 10:49:08,126 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:49:08,126 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 10:49:08,126 INFO L182 omatonBuilderFactory]: Interpolants [1187#true, 1188#false, 1189#(and (= 0 |main_#t~malloc21.offset|) (= 8 (select |#length| |main_#t~malloc21.base|))), 1190#(and (= main_~n~0.offset 0) (= (select |#length| main_~n~0.base) 8))] [2018-02-02 10:49:08,126 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 10:49:08,126 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 10:49:08,126 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 10:49:08,126 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 10:49:08,127 INFO L87 Difference]: Start difference. First operand 136 states and 162 transitions. Second operand 4 states. [2018-02-02 10:49:08,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:49:08,224 INFO L93 Difference]: Finished difference Result 155 states and 187 transitions. [2018-02-02 10:49:08,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-02 10:49:08,224 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-02-02 10:49:08,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:49:08,226 INFO L225 Difference]: With dead ends: 155 [2018-02-02 10:49:08,226 INFO L226 Difference]: Without dead ends: 155 [2018-02-02 10:49:08,226 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 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 10:49:08,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2018-02-02 10:49:08,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 134. [2018-02-02 10:49:08,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-02-02 10:49:08,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 158 transitions. [2018-02-02 10:49:08,235 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 158 transitions. Word has length 15 [2018-02-02 10:49:08,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:49:08,235 INFO L432 AbstractCegarLoop]: Abstraction has 134 states and 158 transitions. [2018-02-02 10:49:08,235 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 10:49:08,235 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 158 transitions. [2018-02-02 10:49:08,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-02 10:49:08,236 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:49:08,236 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:49:08,236 INFO L371 AbstractCegarLoop]: === Iteration 6 === [re_insertErr7RequiresViolation, re_insertErr5RequiresViolation, re_insertErr2RequiresViolation, re_insertErr3RequiresViolation, re_insertErr9RequiresViolation, re_insertErr6RequiresViolation, re_insertErr8RequiresViolation, re_insertErr4RequiresViolation, re_insertErr11RequiresViolation, re_insertErr0RequiresViolation, re_insertErr1RequiresViolation, re_insertErr10RequiresViolation, mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr9RequiresViolation, mainErr8RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr10EnsuresViolation, is_list_containing_xErr1RequiresViolation, is_list_containing_xErr0RequiresViolation, is_list_containing_xErr2RequiresViolation, is_list_containing_xErr3RequiresViolation, removeErr9RequiresViolation, removeErr13RequiresViolation, removeErr0RequiresViolation, removeErr4RequiresViolation, removeErr5RequiresViolation, removeErr12RequiresViolation, removeErr10RequiresViolation, removeErr6RequiresViolation, removeErr14RequiresViolation, removeErr3RequiresViolation, removeErr1RequiresViolation, removeErr8RequiresViolation, removeErr11RequiresViolation, removeErr7RequiresViolation, removeErr15RequiresViolation, removeErr2RequiresViolation]=== [2018-02-02 10:49:08,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1012485069, now seen corresponding path program 1 times [2018-02-02 10:49:08,237 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:49:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:49:08,260 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-02 10:49:08,266 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 10:49:08,269 INFO L168 Benchmark]: Toolchain (without parser) took 1667.42 ms. Allocated memory was 392.2 MB in the beginning and 597.2 MB in the end (delta: 205.0 MB). Free memory was 346.2 MB in the beginning and 452.1 MB in the end (delta: -105.9 MB). Peak memory consumption was 99.1 MB. Max. memory is 5.3 GB. [2018-02-02 10:49:08,270 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 392.2 MB. Free memory is still 352.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 10:49:08,270 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.86 ms. Allocated memory is still 392.2 MB. Free memory was 346.2 MB in the beginning and 335.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-02 10:49:08,270 INFO L168 Benchmark]: Boogie Preprocessor took 23.08 ms. Allocated memory is still 392.2 MB. Free memory was 335.6 MB in the beginning and 332.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 5.3 GB. [2018-02-02 10:49:08,271 INFO L168 Benchmark]: RCFGBuilder took 337.79 ms. Allocated memory is still 392.2 MB. Free memory was 332.9 MB in the beginning and 299.5 MB in the end (delta: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 5.3 GB. [2018-02-02 10:49:08,271 INFO L168 Benchmark]: TraceAbstraction took 1151.47 ms. Allocated memory was 392.2 MB in the beginning and 597.2 MB in the end (delta: 205.0 MB). Free memory was 299.5 MB in the beginning and 452.1 MB in the end (delta: -152.6 MB). Peak memory consumption was 52.4 MB. Max. memory is 5.3 GB. [2018-02-02 10:49:08,272 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 392.2 MB. Free memory is still 352.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 151.86 ms. Allocated memory is still 392.2 MB. Free memory was 346.2 MB in the beginning and 335.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 23.08 ms. Allocated memory is still 392.2 MB. Free memory was 335.6 MB in the beginning and 332.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 5.3 GB. * RCFGBuilder took 337.79 ms. Allocated memory is still 392.2 MB. Free memory was 332.9 MB in the beginning and 299.5 MB in the end (delta: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1151.47 ms. Allocated memory was 392.2 MB in the beginning and 597.2 MB in the end (delta: 205.0 MB). Free memory was 299.5 MB in the beginning and 452.1 MB in the end (delta: -152.6 MB). Peak memory consumption was 52.4 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/dancing_true-unreach-call_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_10-49-08-278.csv Received shutdown request...