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/forester-heap/dll-circular_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:54:15,807 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:54:15,808 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:54:15,821 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:54:15,821 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:54:15,822 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:54:15,823 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:54:15,824 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:54:15,825 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:54:15,826 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:54:15,827 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:54:15,827 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:54:15,828 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:54:15,829 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:54:15,829 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:54:15,831 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:54:15,833 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:54:15,834 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:54:15,835 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:54:15,836 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:54:15,838 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 04:54:15,838 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 04:54:15,838 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 04:54:15,839 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 04:54:15,840 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 04:54:15,841 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 04:54:15,841 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 04:54:15,841 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 04:54:15,842 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 04:54:15,842 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:54:15,842 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:54:15,843 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 04:54:15,852 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:54:15,852 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:54:15,853 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:54:15,853 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:54:15,854 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:54:15,854 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:54:15,854 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:54:15,854 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:54:15,854 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:54:15,854 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:54:15,855 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:54:15,855 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:54:15,855 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:54:15,855 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:54:15,855 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:54:15,855 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:54:15,855 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:54:15,856 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:54:15,856 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:54:15,856 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:54:15,856 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:54:15,856 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:54:15,856 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 04:54:15,857 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 04:54:15,857 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:54:15,890 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:54:15,901 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:54:15,904 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:54:15,905 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:54:15,905 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:54:15,906 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-circular_true-unreach-call_true-valid-memsafety.i [2018-02-04 04:54:16,038 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:54:16,039 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:54:16,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:54:16,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:54:16,046 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:54:16,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:54:16" (1/1) ... [2018-02-04 04:54:16,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37bd4086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:54:16, skipping insertion in model container [2018-02-04 04:54:16,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:54:16" (1/1) ... [2018-02-04 04:54:16,065 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:54:16,094 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:54:16,185 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:54:16,198 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:54:16,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:54:16 WrapperNode [2018-02-04 04:54:16,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:54:16,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:54:16,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:54:16,205 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:54:16,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:54:16" (1/1) ... [2018-02-04 04:54:16,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:54:16" (1/1) ... [2018-02-04 04:54:16,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:54:16" (1/1) ... [2018-02-04 04:54:16,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:54:16" (1/1) ... [2018-02-04 04:54:16,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:54:16" (1/1) ... [2018-02-04 04:54:16,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:54:16" (1/1) ... [2018-02-04 04:54:16,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:54:16" (1/1) ... [2018-02-04 04:54:16,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:54:16,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:54:16,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:54:16,231 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:54:16,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:54:16" (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 04:54:16,270 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:54:16,270 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:54:16,270 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:54:16,270 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 04:54:16,270 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 04:54:16,270 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 04:54:16,271 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 04:54:16,271 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:54:16,271 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:54:16,271 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:54:16,271 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 04:54:16,271 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 04:54:16,271 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:54:16,271 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-02-04 04:54:16,271 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:54:16,271 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:54:16,271 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:54:16,584 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:54:16,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:54:16 BoogieIcfgContainer [2018-02-04 04:54:16,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:54:16,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:54:16,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:54:16,588 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:54:16,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:54:16" (1/3) ... [2018-02-04 04:54:16,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7f2226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:54:16, skipping insertion in model container [2018-02-04 04:54:16,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:54:16" (2/3) ... [2018-02-04 04:54:16,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7f2226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:54:16, skipping insertion in model container [2018-02-04 04:54:16,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:54:16" (3/3) ... [2018-02-04 04:54:16,590 INFO L107 eAbstractionObserver]: Analyzing ICFG dll-circular_true-unreach-call_true-valid-memsafety.i [2018-02-04 04:54:16,595 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:54:16,600 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 47 error locations. [2018-02-04 04:54:16,622 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:54:16,623 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:54:16,623 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 04:54:16,623 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 04:54:16,623 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:54:16,623 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:54:16,623 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:54:16,623 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:54:16,624 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:54:16,633 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2018-02-04 04:54:16,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 04:54:16,640 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:54:16,640 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:54:16,641 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, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:54:16,643 INFO L82 PathProgramCache]: Analyzing trace with hash 414289043, 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 04:54:16,651 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:54:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:54:16,675 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:54:16,681 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:54:16,681 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:54:16,682 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:54:16,682 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:54:16,723 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 04:54:16,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:54:16,757 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 04:54:16,788 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:54:16,789 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:54:16,789 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:54:16,790 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 04:54:16,790 INFO L182 omatonBuilderFactory]: Interpolants [116#true, 117#false, 121#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 122#(= 1 (select |#valid| |main_#t~malloc0.base|)), 123#(= 1 (select |#valid| main_~head~0.base)), 124#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:54:16,791 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 04:54:16,792 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:54:16,803 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:54:16,803 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 04:54:16,805 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 6 states. [2018-02-04 04:54:17,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:54:17,072 INFO L93 Difference]: Finished difference Result 123 states and 130 transitions. [2018-02-04 04:54:17,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:54:17,074 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2018-02-04 04:54:17,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:54:17,080 INFO L225 Difference]: With dead ends: 123 [2018-02-04 04:54:17,080 INFO L226 Difference]: Without dead ends: 120 [2018-02-04 04:54:17,081 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 04:54:17,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-02-04 04:54:17,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 105. [2018-02-04 04:54:17,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-02-04 04:54:17,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 111 transitions. [2018-02-04 04:54:17,153 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 111 transitions. Word has length 8 [2018-02-04 04:54:17,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:54:17,153 INFO L432 AbstractCegarLoop]: Abstraction has 105 states and 111 transitions. [2018-02-04 04:54:17,153 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:54:17,153 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 111 transitions. [2018-02-04 04:54:17,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 04:54:17,153 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:54:17,153 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:54:17,153 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, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:54:17,154 INFO L82 PathProgramCache]: Analyzing trace with hash 414289044, 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 04:54:17,157 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:54:17,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:54:17,163 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:54:17,167 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:54:17,167 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:54:17,168 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:54:17,168 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:54:17,203 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 12) (store |c_#length| %1 12)) :qid itp)) :qid itp)) is different from true [2018-02-04 04:54:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:54:17,241 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 04:54:17,260 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:54:17,260 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:54:17,260 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:54:17,260 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 04:54:17,260 INFO L182 omatonBuilderFactory]: Interpolants [357#true, 358#false, 362#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 12) (store |#length| %1 12)) :qid itp)) :qid itp)), 363#(and (= 0 |main_#t~malloc0.offset|) (= 12 (select |#length| |main_#t~malloc0.base|))), 364#(and (<= (+ main_~head~0.offset 4) (select |#length| main_~head~0.base)) (<= 0 main_~head~0.offset)), 365#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:54:17,260 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 04:54:17,262 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:54:17,262 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:54:17,262 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 04:54:17,262 INFO L87 Difference]: Start difference. First operand 105 states and 111 transitions. Second operand 6 states. [2018-02-04 04:54:17,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:54:17,473 INFO L93 Difference]: Finished difference Result 122 states and 129 transitions. [2018-02-04 04:54:17,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:54:17,474 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2018-02-04 04:54:17,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:54:17,475 INFO L225 Difference]: With dead ends: 122 [2018-02-04 04:54:17,475 INFO L226 Difference]: Without dead ends: 122 [2018-02-04 04:54:17,476 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 04:54:17,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-02-04 04:54:17,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 108. [2018-02-04 04:54:17,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-02-04 04:54:17,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 117 transitions. [2018-02-04 04:54:17,483 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 117 transitions. Word has length 8 [2018-02-04 04:54:17,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:54:17,483 INFO L432 AbstractCegarLoop]: Abstraction has 108 states and 117 transitions. [2018-02-04 04:54:17,483 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:54:17,483 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 117 transitions. [2018-02-04 04:54:17,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-02-04 04:54:17,483 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:54:17,484 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:54:17,484 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, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:54:17,484 INFO L82 PathProgramCache]: Analyzing trace with hash -41941579, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:54:17,486 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:54:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:54:17,500 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:54:17,502 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:54:17,502 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:54:17,503 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:54:17,503 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:54:17,513 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 12) (store |c_#length| %1 12)) :qid itp)) :qid itp)) is different from true [2018-02-04 04:54:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:54:17,539 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 04:54:17,568 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:54:17,568 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:54:17,568 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:54:17,568 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 04:54:17,569 INFO L182 omatonBuilderFactory]: Interpolants [608#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 600#true, 601#false, 605#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 12) (store |#length| %1 12)) :qid itp)) :qid itp)), 606#(and (= 0 |main_#t~malloc0.offset|) (= 12 (select |#length| |main_#t~malloc0.base|))), 607#(and (<= 0 (+ main_~head~0.offset 4)) (<= (+ main_~head~0.offset 8) (select |#length| main_~head~0.base)))] [2018-02-04 04:54:17,569 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 04:54:17,569 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:54:17,569 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:54:17,569 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 04:54:17,570 INFO L87 Difference]: Start difference. First operand 108 states and 117 transitions. Second operand 6 states. [2018-02-04 04:54:17,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:54:17,779 INFO L93 Difference]: Finished difference Result 157 states and 166 transitions. [2018-02-04 04:54:17,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:54:17,779 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2018-02-04 04:54:17,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:54:17,780 INFO L225 Difference]: With dead ends: 157 [2018-02-04 04:54:17,781 INFO L226 Difference]: Without dead ends: 157 [2018-02-04 04:54:17,781 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 04:54:17,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-02-04 04:54:17,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 107. [2018-02-04 04:54:17,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-02-04 04:54:17,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 116 transitions. [2018-02-04 04:54:17,786 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 116 transitions. Word has length 9 [2018-02-04 04:54:17,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:54:17,787 INFO L432 AbstractCegarLoop]: Abstraction has 107 states and 116 transitions. [2018-02-04 04:54:17,787 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:54:17,787 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 116 transitions. [2018-02-04 04:54:17,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-02-04 04:54:17,787 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:54:17,787 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:54:17,788 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, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:54:17,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1300189001, 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 04:54:17,791 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:54:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:54:17,801 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:54:17,803 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:54:17,803 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:54:17,803 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:54:17,804 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:54:17,856 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 12) (store |c_#length| %1 12)) :qid itp)) :qid itp)) is different from true [2018-02-04 04:54:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:54:17,881 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 04:54:17,899 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:54:17,899 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:54:17,899 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:54:17,899 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 04:54:17,899 INFO L182 omatonBuilderFactory]: Interpolants [882#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 12) (store |#length| %1 12)) :qid itp)) :qid itp)), 883#(and (= 0 |main_#t~malloc0.offset|) (= 12 (select |#length| |main_#t~malloc0.base|))), 884#(and (<= 0 (+ main_~head~0.offset 8)) (<= (+ main_~head~0.offset 12) (select |#length| main_~head~0.base))), 885#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 877#true, 878#false] [2018-02-04 04:54:17,899 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 04:54:17,899 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:54:17,900 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:54:17,900 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 04:54:17,900 INFO L87 Difference]: Start difference. First operand 107 states and 116 transitions. Second operand 6 states. [2018-02-04 04:54:18,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:54:18,048 INFO L93 Difference]: Finished difference Result 156 states and 165 transitions. [2018-02-04 04:54:18,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:54:18,049 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-02-04 04:54:18,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:54:18,050 INFO L225 Difference]: With dead ends: 156 [2018-02-04 04:54:18,050 INFO L226 Difference]: Without dead ends: 156 [2018-02-04 04:54:18,050 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=25, Unknown=5, NotChecked=10, Total=56 [2018-02-04 04:54:18,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2018-02-04 04:54:18,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 106. [2018-02-04 04:54:18,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-02-04 04:54:18,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 115 transitions. [2018-02-04 04:54:18,055 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 115 transitions. Word has length 10 [2018-02-04 04:54:18,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:54:18,055 INFO L432 AbstractCegarLoop]: Abstraction has 106 states and 115 transitions. [2018-02-04 04:54:18,055 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:54:18,056 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 115 transitions. [2018-02-04 04:54:18,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 04:54:18,056 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:54:18,056 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:54:18,056 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, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr9RequiresViolation, mainErr30RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr46EnsuresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr34RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:54:18,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1743556376, 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 04:54:18,061 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:54:18,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:54:18,100 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) [2018-02-04 04:54:18,103 INFO L168 Benchmark]: Toolchain (without parser) took 2063.98 ms. Allocated memory was 404.8 MB in the beginning and 612.4 MB in the end (delta: 207.6 MB). Free memory was 361.6 MB in the beginning and 435.3 MB in the end (delta: -73.6 MB). Peak memory consumption was 134.0 MB. Max. memory is 5.3 GB. [2018-02-04 04:54:18,104 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. [2018-02-04 04:54:18,104 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.60 ms. Allocated memory is still 404.8 MB. Free memory was 361.6 MB in the beginning and 349.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. [2018-02-04 04:54:18,105 INFO L168 Benchmark]: Boogie Preprocessor took 25.99 ms. Allocated memory is still 404.8 MB. Free memory was 349.6 MB in the beginning and 348.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:54:18,105 INFO L168 Benchmark]: RCFGBuilder took 353.59 ms. Allocated memory is still 404.8 MB. Free memory was 348.3 MB in the beginning and 315.7 MB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:54:18,105 INFO L168 Benchmark]: TraceAbstraction took 1516.71 ms. Allocated memory was 404.8 MB in the beginning and 612.4 MB in the end (delta: 207.6 MB). Free memory was 315.7 MB in the beginning and 435.3 MB in the end (delta: -119.6 MB). Peak memory consumption was 88.0 MB. Max. memory is 5.3 GB. [2018-02-04 04:54:18,108 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 164.60 ms. Allocated memory is still 404.8 MB. Free memory was 361.6 MB in the beginning and 349.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 25.99 ms. Allocated memory is still 404.8 MB. Free memory was 349.6 MB in the beginning and 348.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 353.59 ms. Allocated memory is still 404.8 MB. Free memory was 348.3 MB in the beginning and 315.7 MB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1516.71 ms. Allocated memory was 404.8 MB in the beginning and 612.4 MB in the end (delta: 207.6 MB). Free memory was 315.7 MB in the beginning and 435.3 MB in the end (delta: -119.6 MB). Peak memory consumption was 88.0 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/dll-circular_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-54-18-115.csv Received shutdown request...