java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf -i ../../../trunk/examples/svcomp/heap-manipulation/dancing_true-unreach-call_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 20:53:10,602 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 20:53:10,603 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 20:53:10,615 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 20:53:10,615 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 20:53:10,616 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 20:53:10,617 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 20:53:10,618 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 20:53:10,619 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 20:53:10,620 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 20:53:10,621 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 20:53:10,621 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 20:53:10,622 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 20:53:10,622 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 20:53:10,623 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 20:53:10,625 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 20:53:10,626 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 20:53:10,628 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 20:53:10,629 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 20:53:10,630 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 20:53:10,631 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 20:53:10,632 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 20:53:10,632 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 20:53:10,633 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 20:53:10,633 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 20:53:10,634 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 20:53:10,634 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 20:53:10,635 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 20:53:10,635 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 20:53:10,635 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 20:53:10,635 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 20:53:10,636 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-02-04 20:53:10,644 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 20:53:10,645 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 20:53:10,645 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 20:53:10,645 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 20:53:10,645 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 20:53:10,646 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 20:53:10,646 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 20:53:10,646 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 20:53:10,646 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 20:53:10,646 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 20:53:10,646 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 20:53:10,646 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 20:53:10,646 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 20:53:10,646 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 20:53:10,647 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 20:53:10,647 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 20:53:10,647 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 20:53:10,647 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 20:53:10,647 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 20:53:10,647 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 20:53:10,647 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 20:53:10,647 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 20:53:10,647 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 20:53:10,648 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:53:10,674 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 20:53:10,682 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 20:53:10,684 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 20:53:10,685 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 20:53:10,685 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 20:53:10,686 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dancing_true-unreach-call_false-valid-memtrack.i [2018-02-04 20:53:10,837 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 20:53:10,839 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 20:53:10,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 20:53:10,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 20:53:10,845 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 20:53:10,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 08:53:10" (1/1) ... [2018-02-04 20:53:10,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cb24ec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:53:10, skipping insertion in model container [2018-02-04 20:53:10,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 08:53:10" (1/1) ... [2018-02-04 20:53:10,862 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 20:53:10,889 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 20:53:10,977 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 20:53:10,989 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 20:53:10,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:53:10 WrapperNode [2018-02-04 20:53:10,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 20:53:10,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 20:53:10,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 20:53:10,996 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 20:53:11,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:53:10" (1/1) ... [2018-02-04 20:53:11,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:53:10" (1/1) ... [2018-02-04 20:53:11,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:53:10" (1/1) ... [2018-02-04 20:53:11,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:53:10" (1/1) ... [2018-02-04 20:53:11,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:53:10" (1/1) ... [2018-02-04 20:53:11,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:53:10" (1/1) ... [2018-02-04 20:53:11,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:53:10" (1/1) ... [2018-02-04 20:53:11,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 20:53:11,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 20:53:11,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 20:53:11,021 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 20:53:11,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:53:10" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 20:53:11,055 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 20:53:11,055 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 20:53:11,055 INFO L136 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-02-04 20:53:11,056 INFO L136 BoogieDeclarations]: Found implementation of procedure remove [2018-02-04 20:53:11,056 INFO L136 BoogieDeclarations]: Found implementation of procedure re_insert [2018-02-04 20:53:11,056 INFO L136 BoogieDeclarations]: Found implementation of procedure is_list_containing_x [2018-02-04 20:53:11,056 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 20:53:11,056 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 20:53:11,056 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 20:53:11,056 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 20:53:11,057 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 20:53:11,057 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 20:53:11,057 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-02-04 20:53:11,057 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2018-02-04 20:53:11,057 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-02-04 20:53:11,057 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-02-04 20:53:11,057 INFO L128 BoogieDeclarations]: Found specification of procedure remove [2018-02-04 20:53:11,057 INFO L128 BoogieDeclarations]: Found specification of procedure re_insert [2018-02-04 20:53:11,057 INFO L128 BoogieDeclarations]: Found specification of procedure is_list_containing_x [2018-02-04 20:53:11,058 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 20:53:11,058 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 20:53:11,058 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 20:53:11,378 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 20:53:11,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 08:53:11 BoogieIcfgContainer [2018-02-04 20:53:11,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 20:53:11,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 20:53:11,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 20:53:11,382 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 20:53:11,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 08:53:10" (1/3) ... [2018-02-04 20:53:11,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@688bbb34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 08:53:11, skipping insertion in model container [2018-02-04 20:53:11,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:53:10" (2/3) ... [2018-02-04 20:53:11,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@688bbb34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 08:53:11, skipping insertion in model container [2018-02-04 20:53:11,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 08:53:11" (3/3) ... [2018-02-04 20:53:11,385 INFO L107 eAbstractionObserver]: Analyzing ICFG dancing_true-unreach-call_false-valid-memtrack.i [2018-02-04 20:53:11,390 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 20:53:11,395 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 43 error locations. [2018-02-04 20:53:11,419 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 20:53:11,419 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 20:53:11,419 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 20:53:11,419 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 20:53:11,419 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 20:53:11,419 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 20:53:11,420 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 20:53:11,420 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 20:53:11,420 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 20:53:11,430 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states. [2018-02-04 20:53:11,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-02-04 20:53:11,437 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:53:11,438 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:53:11,438 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]=== [2018-02-04 20:53:11,441 INFO L82 PathProgramCache]: Analyzing trace with hash 436525791, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:53:11,451 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:53:11,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:53:11,473 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 20:53:11,481 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:11,481 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:11,482 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:11,482 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:11,512 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |c_#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)) is different from true [2018-02-04 20:53:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:53:11,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:53:11,560 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:53:11,560 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 20:53:11,561 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:53:11,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:53:11,561 INFO L182 omatonBuilderFactory]: Interpolants [130#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 131#(= 1 (select |#valid| |main_~#list~0.base|)), 132#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 125#true, 126#false] [2018-02-04 20:53:11,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:53:11,562 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 20:53:11,570 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 20:53:11,570 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2018-02-04 20:53:11,571 INFO L87 Difference]: Start difference. First operand 122 states. Second operand 5 states. [2018-02-04 20:53:11,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:53:11,872 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2018-02-04 20:53:11,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 20:53:11,873 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2018-02-04 20:53:11,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:53:11,880 INFO L225 Difference]: With dead ends: 120 [2018-02-04 20:53:11,880 INFO L226 Difference]: Without dead ends: 116 [2018-02-04 20:53:11,881 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=12, Unknown=2, NotChecked=6, Total=30 [2018-02-04 20:53:11,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-02-04 20:53:11,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2018-02-04 20:53:11,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-02-04 20:53:11,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 129 transitions. [2018-02-04 20:53:11,961 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 129 transitions. Word has length 7 [2018-02-04 20:53:11,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:53:11,961 INFO L432 AbstractCegarLoop]: Abstraction has 116 states and 129 transitions. [2018-02-04 20:53:11,961 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 20:53:11,961 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 129 transitions. [2018-02-04 20:53:11,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-02-04 20:53:11,962 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:53:11,962 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:53:11,962 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]=== [2018-02-04 20:53:11,962 INFO L82 PathProgramCache]: Analyzing trace with hash 436525792, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:53:11,965 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:53:11,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:53:11,972 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 20:53:11,975 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:11,975 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:11,976 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:11,976 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:11,997 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |c_#length| %1 8)) :qid itp)) :qid itp)) is different from true [2018-02-04 20:53:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:53:12,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:53:12,040 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:53:12,040 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 20:53:12,040 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:53:12,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:53:12,041 INFO L182 omatonBuilderFactory]: Interpolants [371#true, 372#false, 376#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |#length| %1 8)) :qid itp)) :qid itp)), 377#(and (<= 0 |main_~#list~0.offset|) (= 8 (select |#length| |main_~#list~0.base|)) (<= (+ |main_~#list~0.offset| 4) (select |#length| |main_~#list~0.base|))), 378#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 20:53:12,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:53:12,042 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 20:53:12,042 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 20:53:12,043 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2018-02-04 20:53:12,043 INFO L87 Difference]: Start difference. First operand 116 states and 129 transitions. Second operand 5 states. [2018-02-04 20:53:12,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:53:12,284 INFO L93 Difference]: Finished difference Result 115 states and 128 transitions. [2018-02-04 20:53:12,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 20:53:12,284 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2018-02-04 20:53:12,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:53:12,285 INFO L225 Difference]: With dead ends: 115 [2018-02-04 20:53:12,285 INFO L226 Difference]: Without dead ends: 115 [2018-02-04 20:53:12,286 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=11, Unknown=3, NotChecked=6, Total=30 [2018-02-04 20:53:12,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-02-04 20:53:12,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-02-04 20:53:12,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-02-04 20:53:12,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 128 transitions. [2018-02-04 20:53:12,296 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 128 transitions. Word has length 7 [2018-02-04 20:53:12,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:53:12,297 INFO L432 AbstractCegarLoop]: Abstraction has 115 states and 128 transitions. [2018-02-04 20:53:12,297 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 20:53:12,297 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 128 transitions. [2018-02-04 20:53:12,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 20:53:12,297 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:53:12,297 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:53:12,298 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]=== [2018-02-04 20:53:12,298 INFO L82 PathProgramCache]: Analyzing trace with hash 647397608, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:53:12,300 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:53:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:53:12,307 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 20:53:12,308 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:12,308 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:12,308 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:12,308 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:12,316 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |c_#length| %1 8)) :qid itp)) :qid itp)) is different from true [2018-02-04 20:53:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:53:12,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:53:12,363 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:53:12,364 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 20:53:12,364 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:53:12,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:53:12,364 INFO L182 omatonBuilderFactory]: Interpolants [611#true, 612#false, 616#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |#length| %1 8)) :qid itp)) :qid itp)), 617#(and (= 8 (select |#length| |main_~#list~0.base|)) (<= 0 (+ |main_~#list~0.offset| 4)) (<= (+ |main_~#list~0.offset| 8) (select |#length| |main_~#list~0.base|))), 618#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 20:53:12,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:53:12,365 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 20:53:12,365 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 20:53:12,365 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2018-02-04 20:53:12,365 INFO L87 Difference]: Start difference. First operand 115 states and 128 transitions. Second operand 5 states. [2018-02-04 20:53:12,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:53:12,610 INFO L93 Difference]: Finished difference Result 114 states and 127 transitions. [2018-02-04 20:53:12,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 20:53:12,610 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2018-02-04 20:53:12,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:53:12,611 INFO L225 Difference]: With dead ends: 114 [2018-02-04 20:53:12,611 INFO L226 Difference]: Without dead ends: 114 [2018-02-04 20:53:12,612 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=11, Unknown=3, NotChecked=6, Total=30 [2018-02-04 20:53:12,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-02-04 20:53:12,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2018-02-04 20:53:12,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-02-04 20:53:12,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 127 transitions. [2018-02-04 20:53:12,618 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 127 transitions. Word has length 8 [2018-02-04 20:53:12,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:53:12,618 INFO L432 AbstractCegarLoop]: Abstraction has 114 states and 127 transitions. [2018-02-04 20:53:12,618 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 20:53:12,618 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 127 transitions. [2018-02-04 20:53:12,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 20:53:12,619 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:53:12,619 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:53:12,619 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]=== [2018-02-04 20:53:12,619 INFO L82 PathProgramCache]: Analyzing trace with hash -711243012, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:53:12,622 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:53:12,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:53:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:53:12,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:53:12,663 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:53:12,664 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 20:53:12,664 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:53:12,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:53:12,664 INFO L182 omatonBuilderFactory]: Interpolants [849#true, 850#false, 854#(= 1 (select |#valid| |main_~#list~0.base|)), 855#(= 1 (select |#valid| |is_list_containing_x_#in~l.base|)), 856#(= 1 (select |#valid| is_list_containing_x_~l.base)), 857#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 20:53:12,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:53:12,664 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 20:53:12,665 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 20:53:12,665 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 20:53:12,665 INFO L87 Difference]: Start difference. First operand 114 states and 127 transitions. Second operand 6 states. [2018-02-04 20:53:12,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:53:12,894 INFO L93 Difference]: Finished difference Result 126 states and 142 transitions. [2018-02-04 20:53:12,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 20:53:12,894 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-02-04 20:53:12,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:53:12,897 INFO L225 Difference]: With dead ends: 126 [2018-02-04 20:53:12,897 INFO L226 Difference]: Without dead ends: 126 [2018-02-04 20:53:12,897 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-02-04 20:53:12,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-02-04 20:53:12,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122. [2018-02-04 20:53:12,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-02-04 20:53:12,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 139 transitions. [2018-02-04 20:53:12,904 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 139 transitions. Word has length 15 [2018-02-04 20:53:12,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:53:12,904 INFO L432 AbstractCegarLoop]: Abstraction has 122 states and 139 transitions. [2018-02-04 20:53:12,904 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 20:53:12,904 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 139 transitions. [2018-02-04 20:53:12,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 20:53:12,904 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:53:12,905 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:53:12,905 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]=== [2018-02-04 20:53:12,905 INFO L82 PathProgramCache]: Analyzing trace with hash -711243011, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:53:12,910 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:53:12,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:53:12,932 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 90 column 352: Sort mismatch at argument #1 for function (declare-fun >= (Int Int) Bool) supplied sort is Bool at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1420) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseInterpolants(Executor.java:255) at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.readInterpolants(ScriptorWithGetInterpolants.java:136) at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.getInterpolants(ScriptorWithGetInterpolants.java:64) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.getInterpolants(DiffWrapperScript.java:260) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:186) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:283) 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.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:298) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:200) 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) [2018-02-04 20:53:12,934 INFO L168 Benchmark]: Toolchain (without parser) took 2096.48 ms. Allocated memory was 400.0 MB in the beginning and 584.1 MB in the end (delta: 184.0 MB). Free memory was 353.9 MB in the beginning and 378.9 MB in the end (delta: -25.0 MB). Peak memory consumption was 159.0 MB. Max. memory is 5.3 GB. [2018-02-04 20:53:12,935 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 400.0 MB. Free memory is still 360.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 20:53:12,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.09 ms. Allocated memory is still 400.0 MB. Free memory was 353.9 MB in the beginning and 343.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-04 20:53:12,936 INFO L168 Benchmark]: Boogie Preprocessor took 24.90 ms. Allocated memory is still 400.0 MB. Free memory was 343.3 MB in the beginning and 340.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 5.3 GB. [2018-02-04 20:53:12,936 INFO L168 Benchmark]: RCFGBuilder took 358.13 ms. Allocated memory is still 400.0 MB. Free memory was 340.6 MB in the beginning and 307.2 MB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 5.3 GB. [2018-02-04 20:53:12,936 INFO L168 Benchmark]: TraceAbstraction took 1554.40 ms. Allocated memory was 400.0 MB in the beginning and 584.1 MB in the end (delta: 184.0 MB). Free memory was 307.2 MB in the beginning and 378.9 MB in the end (delta: -71.7 MB). Peak memory consumption was 112.3 MB. Max. memory is 5.3 GB. [2018-02-04 20:53:12,938 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 400.0 MB. Free memory is still 360.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 156.09 ms. Allocated memory is still 400.0 MB. Free memory was 353.9 MB in the beginning and 343.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 24.90 ms. Allocated memory is still 400.0 MB. Free memory was 343.3 MB in the beginning and 340.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 5.3 GB. * RCFGBuilder took 358.13 ms. Allocated memory is still 400.0 MB. Free memory was 340.6 MB in the beginning and 307.2 MB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1554.40 ms. Allocated memory was 400.0 MB in the beginning and 584.1 MB in the end (delta: 184.0 MB). Free memory was 307.2 MB in the beginning and 378.9 MB in the end (delta: -71.7 MB). Peak memory consumption was 112.3 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 90 column 352: Sort mismatch at argument #1 for function (declare-fun >= (Int Int) Bool) supplied sort is Bool de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 90 column 352: Sort mismatch at argument #1 for function (declare-fun >= (Int Int) Bool) supplied sort is Bool: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1420) 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_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_20-53-12-943.csv Received shutdown request...