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_z3.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-26d9e06-m [2018-02-02 11:09:10,531 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 11:09:10,532 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 11:09:10,545 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 11:09:10,545 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 11:09:10,546 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 11:09:10,547 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 11:09:10,548 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 11:09:10,550 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 11:09:10,551 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 11:09:10,551 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 11:09:10,552 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 11:09:10,552 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 11:09:10,553 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 11:09:10,554 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 11:09:10,555 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 11:09:10,557 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 11:09:10,558 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 11:09:10,559 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 11:09:10,560 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 11:09:10,562 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-02 11:09:10,562 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-02 11:09:10,562 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-02 11:09:10,563 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-02 11:09:10,564 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-02 11:09:10,565 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-02 11:09:10,565 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-02 11:09:10,566 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-02 11:09:10,566 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-02 11:09:10,566 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 11:09:10,567 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 11:09:10,567 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-02-02 11:09:10,577 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 11:09:10,577 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 11:09:10,578 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 11:09:10,578 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 11:09:10,579 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 11:09:10,579 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 11:09:10,579 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 11:09:10,579 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 11:09:10,579 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 11:09:10,579 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 11:09:10,579 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 11:09:10,580 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 11:09:10,580 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 11:09:10,580 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 11:09:10,580 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 11:09:10,580 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 11:09:10,580 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 11:09:10,581 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 11:09:10,581 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 11:09:10,581 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 11:09:10,581 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 11:09:10,581 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 11:09:10,581 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-02 11:09:10,581 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-02 11:09:10,582 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-02 11:09:10,611 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 11:09:10,624 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 11:09:10,628 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 11:09:10,630 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 11:09:10,630 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 11:09:10,631 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i [2018-02-02 11:09:10,772 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 11:09:10,774 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 11:09:10,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 11:09:10,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 11:09:10,781 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 11:09:10,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 11:09:10" (1/1) ... [2018-02-02 11:09:10,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59897e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:09:10, skipping insertion in model container [2018-02-02 11:09:10,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 11:09:10" (1/1) ... [2018-02-02 11:09:10,799 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 11:09:10,835 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 11:09:10,939 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 11:09:10,958 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 11:09:10,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:09:10 WrapperNode [2018-02-02 11:09:10,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 11:09:10,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 11:09:10,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 11:09:10,966 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 11:09:10,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:09:10" (1/1) ... [2018-02-02 11:09:10,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:09:10" (1/1) ... [2018-02-02 11:09:10,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:09:10" (1/1) ... [2018-02-02 11:09:10,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:09:10" (1/1) ... [2018-02-02 11:09:10,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:09:10" (1/1) ... [2018-02-02 11:09:10,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:09:10" (1/1) ... [2018-02-02 11:09:10,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:09:10" (1/1) ... [2018-02-02 11:09:10,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 11:09:10,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 11:09:10,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 11:09:10,996 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 11:09:10,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:09:10" (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 [2018-02-02 11:09:11,036 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 11:09:11,036 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 11:09:11,036 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 11:09:11,036 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 11:09:11,036 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 11:09:11,036 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-02 11:09:11,037 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-02 11:09:11,037 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 11:09:11,037 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 11:09:11,037 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 11:09:11,037 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 11:09:11,037 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 11:09:11,037 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 11:09:11,037 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-02-02 11:09:11,037 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 11:09:11,037 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 11:09:11,038 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 11:09:11,334 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 11:09:11,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 11:09:11 BoogieIcfgContainer [2018-02-02 11:09:11,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 11:09:11,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 11:09:11,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 11:09:11,337 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 11:09:11,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 11:09:10" (1/3) ... [2018-02-02 11:09:11,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c292af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 11:09:11, skipping insertion in model container [2018-02-02 11:09:11,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:09:10" (2/3) ... [2018-02-02 11:09:11,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c292af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 11:09:11, skipping insertion in model container [2018-02-02 11:09:11,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 11:09:11" (3/3) ... [2018-02-02 11:09:11,339 INFO L107 eAbstractionObserver]: Analyzing ICFG sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i [2018-02-02 11:09:11,345 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-02 11:09:11,349 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 43 error locations. [2018-02-02 11:09:11,382 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 11:09:11,382 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 11:09:11,382 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-02 11:09:11,382 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-02 11:09:11,382 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 11:09:11,383 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 11:09:11,383 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 11:09:11,383 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 11:09:11,384 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 11:09:11,396 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states. [2018-02-02 11:09:11,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-02 11:09:11,405 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:09:11,405 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:09:11,406 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42EnsuresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 11:09:11,409 INFO L82 PathProgramCache]: Analyzing trace with hash 805618339, 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 [2018-02-02 11:09:11,420 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:09:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:09:11,444 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-02 11:09:11,454 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:11,455 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:11,456 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:11,456 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:11,493 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 [2018-02-02 11:09:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:09:11,543 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 11:09:11,571 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 11:09:11,571 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 11:09:11,572 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 11:09:11,572 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 11:09:11,573 INFO L182 omatonBuilderFactory]: Interpolants [112#true, 113#false, 117#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 118#(= 1 (select |#valid| |main_#t~malloc0.base|)), 119#(= 1 (select |#valid| main_~head~0.base)), 120#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-02 11:09:11,573 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 11:09:11,574 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 11:09:11,584 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 11:09:11,584 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-02 11:09:11,586 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 6 states. [2018-02-02 11:09:11,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 11:09:11,993 INFO L93 Difference]: Finished difference Result 152 states and 162 transitions. [2018-02-02 11:09:11,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-02 11:09:11,994 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2018-02-02 11:09:11,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 11:09:12,000 INFO L225 Difference]: With dead ends: 152 [2018-02-02 11:09:12,000 INFO L226 Difference]: Without dead ends: 143 [2018-02-02 11:09:12,001 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=4, NotChecked=14, Total=90 [2018-02-02 11:09:12,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-02-02 11:09:12,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 101. [2018-02-02 11:09:12,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-02-02 11:09:12,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 107 transitions. [2018-02-02 11:09:12,087 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 107 transitions. Word has length 8 [2018-02-02 11:09:12,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 11:09:12,088 INFO L432 AbstractCegarLoop]: Abstraction has 101 states and 107 transitions. [2018-02-02 11:09:12,088 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 11:09:12,088 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 107 transitions. [2018-02-02 11:09:12,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-02 11:09:12,088 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:09:12,088 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:09:12,089 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42EnsuresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 11:09:12,089 INFO L82 PathProgramCache]: Analyzing trace with hash 805618340, 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 [2018-02-02 11:09:12,092 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:09:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:09:12,099 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-02 11:09:12,101 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:12,101 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:12,101 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:12,102 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:12,107 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 [2018-02-02 11:09:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:09:12,138 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 11:09:12,165 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 11:09:12,165 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 11:09:12,165 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 11:09:12,165 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 11:09:12,165 INFO L182 omatonBuilderFactory]: Interpolants [387#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |#length| %1 8)) :qid itp)) :qid itp)), 388#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 389#(and (<= (+ main_~head~0.offset 4) (select |#length| main_~head~0.base)) (<= 0 main_~head~0.offset)), 390#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 382#true, 383#false] [2018-02-02 11:09:12,166 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 11:09:12,167 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 11:09:12,167 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 11:09:12,167 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-02 11:09:12,167 INFO L87 Difference]: Start difference. First operand 101 states and 107 transitions. Second operand 6 states. [2018-02-02 11:09:12,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 11:09:12,393 INFO L93 Difference]: Finished difference Result 122 states and 132 transitions. [2018-02-02 11:09:12,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 11:09:12,393 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2018-02-02 11:09:12,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 11:09:12,394 INFO L225 Difference]: With dead ends: 122 [2018-02-02 11:09:12,395 INFO L226 Difference]: Without dead ends: 122 [2018-02-02 11:09:12,395 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=28, Unknown=2, NotChecked=10, Total=56 [2018-02-02 11:09:12,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-02-02 11:09:12,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 100. [2018-02-02 11:09:12,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-02-02 11:09:12,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 106 transitions. [2018-02-02 11:09:12,404 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 106 transitions. Word has length 8 [2018-02-02 11:09:12,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 11:09:12,404 INFO L432 AbstractCegarLoop]: Abstraction has 100 states and 106 transitions. [2018-02-02 11:09:12,404 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 11:09:12,404 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 106 transitions. [2018-02-02 11:09:12,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-02-02 11:09:12,405 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:09:12,405 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:09:12,405 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42EnsuresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 11:09:12,405 INFO L82 PathProgramCache]: Analyzing trace with hash -795635291, 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) [2018-02-02 11:09:12,408 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:09:12,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-02 11:09:12,417 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-02 11:09:12,419 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:12,419 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:12,419 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:12,419 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:12,424 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 [2018-02-02 11:09:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:09:12,447 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 11:09:12,463 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 11:09:12,463 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 11:09:12,463 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 11:09:12,463 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 11:09:12,464 INFO L182 omatonBuilderFactory]: Interpolants [624#(and (<= 0 (+ main_~head~0.offset 4)) (<= (+ main_~head~0.offset 8) (select |#length| main_~head~0.base))), 625#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 617#true, 618#false, 622#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |#length| %1 8)) :qid itp)) :qid itp)), 623#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|))] [2018-02-02 11:09:12,464 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 11:09:12,464 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 11:09:12,464 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 11:09:12,464 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-02 11:09:12,465 INFO L87 Difference]: Start difference. First operand 100 states and 106 transitions. Second operand 6 states. [2018-02-02 11:09:12,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 11:09:12,654 INFO L93 Difference]: Finished difference Result 121 states and 131 transitions. [2018-02-02 11:09:12,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 11:09:12,654 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2018-02-02 11:09:12,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 11:09:12,655 INFO L225 Difference]: With dead ends: 121 [2018-02-02 11:09:12,655 INFO L226 Difference]: Without dead ends: 121 [2018-02-02 11:09:12,656 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=28, Unknown=2, NotChecked=10, Total=56 [2018-02-02 11:09:12,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-02-02 11:09:12,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 99. [2018-02-02 11:09:12,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-02-02 11:09:12,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 105 transitions. [2018-02-02 11:09:12,665 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 105 transitions. Word has length 9 [2018-02-02 11:09:12,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 11:09:12,665 INFO L432 AbstractCegarLoop]: Abstraction has 99 states and 105 transitions. [2018-02-02 11:09:12,665 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 11:09:12,665 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 105 transitions. [2018-02-02 11:09:12,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-02 11:09:12,665 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:09:12,666 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:09:12,666 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42EnsuresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 11:09:12,666 INFO L82 PathProgramCache]: Analyzing trace with hash -86961810, 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 [2018-02-02 11:09:12,669 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:09:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:09:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:09:12,699 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 11:09:12,725 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 11:09:12,725 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 11:09:12,725 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 11:09:12,725 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 11:09:12,725 INFO L182 omatonBuilderFactory]: Interpolants [850#true, 851#false, 855#(= 1 (select |#valid| main_~head~0.base)), 856#(= 1 (select |#valid| main_~x~0.base)), 857#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-02 11:09:12,726 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 11:09:12,726 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 11:09:12,726 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 11:09:12,726 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 11:09:12,726 INFO L87 Difference]: Start difference. First operand 99 states and 105 transitions. Second operand 5 states. [2018-02-02 11:09:12,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 11:09:12,832 INFO L93 Difference]: Finished difference Result 103 states and 109 transitions. [2018-02-02 11:09:12,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 11:09:12,833 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-02-02 11:09:12,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 11:09:12,833 INFO L225 Difference]: With dead ends: 103 [2018-02-02 11:09:12,833 INFO L226 Difference]: Without dead ends: 103 [2018-02-02 11:09:12,833 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 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 11:09:12,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-02-02 11:09:12,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 96. [2018-02-02 11:09:12,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-02-02 11:09:12,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 107 transitions. [2018-02-02 11:09:12,839 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 107 transitions. Word has length 15 [2018-02-02 11:09:12,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 11:09:12,839 INFO L432 AbstractCegarLoop]: Abstraction has 96 states and 107 transitions. [2018-02-02 11:09:12,839 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 11:09:12,839 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 107 transitions. [2018-02-02 11:09:12,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-02 11:09:12,840 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:09:12,840 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:09:12,840 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr39RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42EnsuresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 11:09:12,840 INFO L82 PathProgramCache]: Analyzing trace with hash -86961809, 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 [2018-02-02 11:09:12,844 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:09:12,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:09:12,870 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: Unsupported proof rule: (let ((a!1 (= (+ 0 (* (- 1) (select |#length_13| |main_#t~malloc0.base_5|))) (* (- 1) (select |#length_13| |main_#t~malloc0.base_5|))))) (rewrite a!1)) [2018-02-02 11:09:12,871 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 90 column 283: theory not supported by interpolation or bad proof 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:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:196) 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 11:09:12,874 INFO L168 Benchmark]: Toolchain (without parser) took 2100.86 ms. Allocated memory was 404.8 MB in the beginning and 593.5 MB in the end (delta: 188.7 MB). Free memory was 361.6 MB in the beginning and 426.7 MB in the end (delta: -65.1 MB). Peak memory consumption was 123.7 MB. Max. memory is 5.3 GB. [2018-02-02 11:09:12,875 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 404.8 MB. Free memory is still 368.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 11:09:12,875 INFO L168 Benchmark]: CACSL2BoogieTranslator took 191.31 ms. Allocated memory is still 404.8 MB. Free memory was 361.6 MB in the beginning and 349.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. [2018-02-02 11:09:12,876 INFO L168 Benchmark]: Boogie Preprocessor took 29.17 ms. Allocated memory is still 404.8 MB. Free memory was 349.7 MB in the beginning and 348.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-02 11:09:12,876 INFO L168 Benchmark]: RCFGBuilder took 338.84 ms. Allocated memory is still 404.8 MB. Free memory was 348.4 MB in the beginning and 315.7 MB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 5.3 GB. [2018-02-02 11:09:12,877 INFO L168 Benchmark]: TraceAbstraction took 1538.39 ms. Allocated memory was 404.8 MB in the beginning and 593.5 MB in the end (delta: 188.7 MB). Free memory was 315.7 MB in the beginning and 426.7 MB in the end (delta: -111.0 MB). Peak memory consumption was 77.7 MB. Max. memory is 5.3 GB. [2018-02-02 11:09:12,879 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 404.8 MB. Free memory is still 368.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 191.31 ms. Allocated memory is still 404.8 MB. Free memory was 361.6 MB in the beginning and 349.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 29.17 ms. Allocated memory is still 404.8 MB. Free memory was 349.7 MB in the beginning and 348.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 338.84 ms. Allocated memory is still 404.8 MB. Free memory was 348.4 MB in the beginning and 315.7 MB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1538.39 ms. Allocated memory was 404.8 MB in the beginning and 593.5 MB in the end (delta: 188.7 MB). Free memory was 315.7 MB in the beginning and 426.7 MB in the end (delta: -111.0 MB). Peak memory consumption was 77.7 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 90 column 283: theory not supported by interpolation or bad proof de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 90 column 283: theory not supported by interpolation or bad proof: 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/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_11-09-12-886.csv Received shutdown request...