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/memsafety-ext/dll_extends_pointer_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 20:38:00,763 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 20:38:00,765 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 20:38:00,778 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 20:38:00,778 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 20:38:00,779 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 20:38:00,779 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 20:38:00,780 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 20:38:00,782 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 20:38:00,782 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 20:38:00,783 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 20:38:00,783 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 20:38:00,784 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 20:38:00,785 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 20:38:00,786 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 20:38:00,788 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 20:38:00,789 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 20:38:00,791 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 20:38:00,792 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 20:38:00,793 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 20:38:00,795 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 20:38:00,795 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 20:38:00,795 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 20:38:00,796 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 20:38:00,796 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 20:38:00,797 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 20:38:00,798 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 20:38:00,798 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 20:38:00,798 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 20:38:00,798 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 20:38:00,799 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 20:38:00,799 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 20:38:00,809 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 20:38:00,809 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 20:38:00,810 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 20:38:00,811 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 20:38:00,811 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 20:38:00,811 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 20:38:00,811 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 20:38:00,811 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 20:38:00,811 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 20:38:00,812 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 20:38:00,812 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 20:38:00,812 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 20:38:00,812 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 20:38:00,812 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 20:38:00,812 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 20:38:00,812 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 20:38:00,813 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 20:38:00,813 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 20:38:00,813 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 20:38:00,813 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 20:38:00,813 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 20:38:00,813 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 20:38:00,814 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 20:38:00,814 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:38:00,843 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 20:38:00,854 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 20:38:00,857 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 20:38:00,858 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 20:38:00,859 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 20:38:00,859 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety-ext/dll_extends_pointer_true-valid-memsafety.i [2018-02-04 20:38:00,992 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 20:38:00,993 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 20:38:00,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 20:38:00,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 20:38:00,998 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 20:38:00,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 08:38:00" (1/1) ... [2018-02-04 20:38:01,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b297c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:38:00, skipping insertion in model container [2018-02-04 20:38:01,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 08:38:00" (1/1) ... [2018-02-04 20:38:01,014 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 20:38:01,043 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 20:38:01,129 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 20:38:01,140 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 20:38:01,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:38:01 WrapperNode [2018-02-04 20:38:01,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 20:38:01,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 20:38:01,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 20:38:01,146 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 20:38:01,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:38:01" (1/1) ... [2018-02-04 20:38:01,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:38:01" (1/1) ... [2018-02-04 20:38:01,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:38:01" (1/1) ... [2018-02-04 20:38:01,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:38:01" (1/1) ... [2018-02-04 20:38:01,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:38:01" (1/1) ... [2018-02-04 20:38:01,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:38:01" (1/1) ... [2018-02-04 20:38:01,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:38:01" (1/1) ... [2018-02-04 20:38:01,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 20:38:01,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 20:38:01,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 20:38:01,170 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 20:38:01,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:38:01" (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 20:38:01,207 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 20:38:01,207 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 20:38:01,207 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 20:38:01,207 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 20:38:01,207 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 20:38:01,207 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 20:38:01,208 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 20:38:01,208 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 20:38:01,208 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 20:38:01,208 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 20:38:01,208 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 20:38:01,208 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 20:38:01,208 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 20:38:01,208 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 20:38:01,397 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 20:38:01,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 08:38:01 BoogieIcfgContainer [2018-02-04 20:38:01,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 20:38:01,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 20:38:01,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 20:38:01,400 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 20:38:01,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 08:38:00" (1/3) ... [2018-02-04 20:38:01,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@173011f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 08:38:01, skipping insertion in model container [2018-02-04 20:38:01,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:38:01" (2/3) ... [2018-02-04 20:38:01,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@173011f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 08:38:01, skipping insertion in model container [2018-02-04 20:38:01,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 08:38:01" (3/3) ... [2018-02-04 20:38:01,402 INFO L107 eAbstractionObserver]: Analyzing ICFG dll_extends_pointer_true-valid-memsafety.i [2018-02-04 20:38:01,407 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 20:38:01,412 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 25 error locations. [2018-02-04 20:38:01,435 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 20:38:01,435 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 20:38:01,435 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 20:38:01,435 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 20:38:01,435 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 20:38:01,435 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 20:38:01,435 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 20:38:01,436 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 20:38:01,436 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 20:38:01,446 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2018-02-04 20:38:01,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-02-04 20:38:01,454 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:38:01,454 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:38:01,455 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr24EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 20:38:01,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1414487999, 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 20:38:01,466 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:38:01,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:38:01,492 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 20:38:01,504 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:38:01,504 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:38:01,505 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:38:01,505 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:38:01,540 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 20:38:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:38:01,580 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 20:38:01,599 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:38:01,599 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 20:38:01,600 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:38:01,600 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 20:38:01,600 INFO L182 omatonBuilderFactory]: Interpolants [68#true, 69#false, 73#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 74#(= 1 (select |#valid| |main_#t~malloc0.base|)), 75#(= 1 (select |#valid| main_~y~0.base)), 76#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 20:38:01,600 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 20:38:01,601 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 20:38:01,608 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 20:38:01,608 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 20:38:01,610 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 6 states. [2018-02-04 20:38:02,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:38:02,036 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2018-02-04 20:38:02,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 20:38:02,037 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2018-02-04 20:38:02,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:38:02,045 INFO L225 Difference]: With dead ends: 82 [2018-02-04 20:38:02,046 INFO L226 Difference]: Without dead ends: 78 [2018-02-04 20:38:02,047 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=35, Unknown=3, NotChecked=12, Total=72 [2018-02-04 20:38:02,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-02-04 20:38:02,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 57. [2018-02-04 20:38:02,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-02-04 20:38:02,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2018-02-04 20:38:02,126 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 9 [2018-02-04 20:38:02,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:38:02,126 INFO L432 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2018-02-04 20:38:02,126 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 20:38:02,126 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2018-02-04 20:38:02,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-02-04 20:38:02,127 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:38:02,127 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:38:02,127 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr24EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 20:38:02,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1414487998, 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 20:38:02,129 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:38:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:38:02,140 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 20:38:02,141 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:38:02,141 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:38:02,141 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:38:02,142 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:38:02,148 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 13) (store |c_#length| %1 13)) :qid itp)) :qid itp)) is different from true [2018-02-04 20:38:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:38:02,179 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 20:38:02,210 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:38:02,211 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 20:38:02,211 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:38:02,211 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 20:38:02,211 INFO L182 omatonBuilderFactory]: Interpolants [227#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 13) (store |#length| %1 13)) :qid itp)) :qid itp)), 228#(and (= 13 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 229#(and (<= (+ main_~y~0.offset 4) (select |#length| main_~y~0.base)) (<= 0 main_~y~0.offset)), 230#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 222#true, 223#false] [2018-02-04 20:38:02,212 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 20:38:02,213 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 20:38:02,213 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 20:38:02,213 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 20:38:02,213 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand 6 states. [2018-02-04 20:38:02,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:38:02,381 INFO L93 Difference]: Finished difference Result 111 states and 120 transitions. [2018-02-04 20:38:02,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 20:38:02,382 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2018-02-04 20:38:02,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:38:02,383 INFO L225 Difference]: With dead ends: 111 [2018-02-04 20:38:02,383 INFO L226 Difference]: Without dead ends: 111 [2018-02-04 20:38:02,384 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 [2018-02-04 20:38:02,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-02-04 20:38:02,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 56. [2018-02-04 20:38:02,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-02-04 20:38:02,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2018-02-04 20:38:02,389 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 9 [2018-02-04 20:38:02,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:38:02,389 INFO L432 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2018-02-04 20:38:02,389 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 20:38:02,389 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2018-02-04 20:38:02,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-02-04 20:38:02,390 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:38:02,390 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:38:02,390 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr24EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 20:38:02,390 INFO L82 PathProgramCache]: Analyzing trace with hash -899455027, 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) [2018-02-04 20:38:02,404 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:38:02,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:38:02,414 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 20:38:02,415 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:38:02,415 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:38:02,415 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:38:02,415 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:38:02,421 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 13) (store |c_#length| %1 13)) :qid itp)) :qid itp)) is different from true [2018-02-04 20:38:02,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:38:02,449 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 20:38:02,465 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:38:02,466 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 20:38:02,466 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:38:02,466 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 20:38:02,466 INFO L182 omatonBuilderFactory]: Interpolants [402#true, 403#false, 407#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 13) (store |#length| %1 13)) :qid itp)) :qid itp)), 408#(and (= 13 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 409#(and (<= (+ main_~y~0.offset 8) (select |#length| main_~y~0.base)) (<= 0 (+ main_~y~0.offset 4))), 410#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 20:38:02,467 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 20:38:02,467 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 20:38:02,467 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 20:38:02,467 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 20:38:02,467 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 6 states. [2018-02-04 20:38:02,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:38:02,563 INFO L93 Difference]: Finished difference Result 104 states and 113 transitions. [2018-02-04 20:38:02,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 20:38:02,563 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-02-04 20:38:02,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:38:02,564 INFO L225 Difference]: With dead ends: 104 [2018-02-04 20:38:02,564 INFO L226 Difference]: Without dead ends: 104 [2018-02-04 20:38:02,564 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 [2018-02-04 20:38:02,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-02-04 20:38:02,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 55. [2018-02-04 20:38:02,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-02-04 20:38:02,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2018-02-04 20:38:02,567 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 10 [2018-02-04 20:38:02,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:38:02,567 INFO L432 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2018-02-04 20:38:02,567 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 20:38:02,567 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2018-02-04 20:38:02,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-02-04 20:38:02,567 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:38:02,568 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:38:02,568 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr24EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 20:38:02,568 INFO L82 PathProgramCache]: Analyzing trace with hash -2113302107, 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 20:38:02,570 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:38:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:38:02,577 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 20:38:02,579 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:38:02,579 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:38:02,579 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:38:02,579 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:38:02,582 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 13) (store |c_#length| %1 13)) :qid itp)) :qid itp)) is different from true [2018-02-04 20:38:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:38:02,599 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 20:38:02,615 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:38:02,615 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 20:38:02,615 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:38:02,615 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 20:38:02,615 INFO L182 omatonBuilderFactory]: Interpolants [579#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 13) (store |#length| %1 13)) :qid itp)) :qid itp)), 580#(and (= 13 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 581#(and (<= (+ main_~y~0.offset 12) (select |#length| main_~y~0.base)) (<= 0 (+ main_~y~0.offset 8))), 582#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 574#true, 575#false] [2018-02-04 20:38:02,615 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 20:38:02,616 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 20:38:02,616 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 20:38:02,616 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 20:38:02,616 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand 6 states. [2018-02-04 20:38:02,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:38:02,781 INFO L93 Difference]: Finished difference Result 92 states and 100 transitions. [2018-02-04 20:38:02,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 20:38:02,782 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2018-02-04 20:38:02,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:38:02,783 INFO L225 Difference]: With dead ends: 92 [2018-02-04 20:38:02,783 INFO L226 Difference]: Without dead ends: 92 [2018-02-04 20:38:02,783 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=28, Unknown=2, NotChecked=10, Total=56 [2018-02-04 20:38:02,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-02-04 20:38:02,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 53. [2018-02-04 20:38:02,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-02-04 20:38:02,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2018-02-04 20:38:02,791 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 11 [2018-02-04 20:38:02,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:38:02,792 INFO L432 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2018-02-04 20:38:02,792 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 20:38:02,792 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2018-02-04 20:38:02,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-04 20:38:02,792 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:38:02,792 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:38:02,792 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr24EnsuresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation]=== [2018-02-04 20:38:02,792 INFO L82 PathProgramCache]: Analyzing trace with hash 689004913, 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 20:38:02,795 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:38:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:38:02,823 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 91 column 304: 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: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 20:38:02,826 INFO L168 Benchmark]: Toolchain (without parser) took 1834.11 ms. Allocated memory was 404.8 MB in the beginning and 611.3 MB in the end (delta: 206.6 MB). Free memory was 361.4 MB in the beginning and 470.6 MB in the end (delta: -109.2 MB). Peak memory consumption was 97.4 MB. Max. memory is 5.3 GB. [2018-02-04 20:38:02,828 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 404.8 MB. Free memory is still 368.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 20:38:02,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 152.08 ms. Allocated memory is still 404.8 MB. Free memory was 361.4 MB in the beginning and 350.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 5.3 GB. [2018-02-04 20:38:02,829 INFO L168 Benchmark]: Boogie Preprocessor took 24.06 ms. Allocated memory is still 404.8 MB. Free memory was 350.8 MB in the beginning and 349.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 20:38:02,829 INFO L168 Benchmark]: RCFGBuilder took 227.13 ms. Allocated memory is still 404.8 MB. Free memory was 349.5 MB in the beginning and 326.9 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 5.3 GB. [2018-02-04 20:38:02,830 INFO L168 Benchmark]: TraceAbstraction took 1427.93 ms. Allocated memory was 404.8 MB in the beginning and 611.3 MB in the end (delta: 206.6 MB). Free memory was 325.6 MB in the beginning and 470.6 MB in the end (delta: -145.0 MB). Peak memory consumption was 61.6 MB. Max. memory is 5.3 GB. [2018-02-04 20:38:02,833 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 368.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 152.08 ms. Allocated memory is still 404.8 MB. Free memory was 361.4 MB in the beginning and 350.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 24.06 ms. Allocated memory is still 404.8 MB. Free memory was 350.8 MB in the beginning and 349.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 227.13 ms. Allocated memory is still 404.8 MB. Free memory was 349.5 MB in the beginning and 326.9 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1427.93 ms. Allocated memory was 404.8 MB in the beginning and 611.3 MB in the end (delta: 206.6 MB). Free memory was 325.6 MB in the beginning and 470.6 MB in the end (delta: -145.0 MB). Peak memory consumption was 61.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 91 column 304: theory not supported by interpolation or bad proof de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 91 column 304: 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/dll_extends_pointer_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_20-38-02-842.csv Received shutdown request...