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/sll-rb-cnstr_1_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:55:08,827 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:55:08,828 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:55:08,838 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:55:08,838 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:55:08,839 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:55:08,840 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:55:08,841 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:55:08,842 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:55:08,843 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:55:08,844 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:55:08,844 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:55:08,845 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:55:08,846 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:55:08,847 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:55:08,848 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:55:08,850 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:55:08,851 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:55:08,852 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:55:08,853 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:55:08,855 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 04:55:08,855 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 04:55:08,855 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 04:55:08,856 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 04:55:08,857 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 04:55:08,858 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 04:55:08,858 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 04:55:08,858 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 04:55:08,858 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 04:55:08,859 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:55:08,859 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:55:08,859 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 04:55:08,869 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:55:08,869 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:55:08,870 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:55:08,870 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:55:08,870 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:55:08,870 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:55:08,870 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:55:08,870 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:55:08,871 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:55:08,871 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:55:08,871 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:55:08,871 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:55:08,871 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:55:08,871 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:55:08,871 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:55:08,872 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:55:08,872 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:55:08,872 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:55:08,872 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:55:08,872 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:55:08,872 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:55:08,872 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:55:08,873 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 04:55:08,873 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 04:55:08,873 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:55:08,900 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:55:08,910 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:55:08,913 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:55:08,914 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:55:08,914 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:55:08,915 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-rb-cnstr_1_true-unreach-call_true-valid-memsafety.i [2018-02-04 04:55:09,050 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:55:09,052 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:55:09,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:55:09,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:55:09,058 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:55:09,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:55:09" (1/1) ... [2018-02-04 04:55:09,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6731c74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:55:09, skipping insertion in model container [2018-02-04 04:55:09,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:55:09" (1/1) ... [2018-02-04 04:55:09,075 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:55:09,106 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:55:09,186 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:55:09,199 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:55:09,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:55:09 WrapperNode [2018-02-04 04:55:09,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:55:09,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:55:09,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:55:09,207 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:55:09,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:55:09" (1/1) ... [2018-02-04 04:55:09,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:55:09" (1/1) ... [2018-02-04 04:55:09,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:55:09" (1/1) ... [2018-02-04 04:55:09,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:55:09" (1/1) ... [2018-02-04 04:55:09,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:55:09" (1/1) ... [2018-02-04 04:55:09,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:55:09" (1/1) ... [2018-02-04 04:55:09,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:55:09" (1/1) ... [2018-02-04 04:55:09,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:55:09,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:55:09,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:55:09,237 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:55:09,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:55:09" (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 04:55:09,270 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:55:09,270 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:55:09,270 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:55:09,270 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 04:55:09,270 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 04:55:09,270 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 04:55:09,271 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 04:55:09,271 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:55:09,271 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:55:09,271 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:55:09,271 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 04:55:09,271 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 04:55:09,271 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:55:09,271 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-02-04 04:55:09,271 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:55:09,271 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:55:09,271 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:55:09,580 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:55:09,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:55:09 BoogieIcfgContainer [2018-02-04 04:55:09,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:55:09,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:55:09,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:55:09,583 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:55:09,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:55:09" (1/3) ... [2018-02-04 04:55:09,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407b70d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:55:09, skipping insertion in model container [2018-02-04 04:55:09,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:55:09" (2/3) ... [2018-02-04 04:55:09,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407b70d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:55:09, skipping insertion in model container [2018-02-04 04:55:09,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:55:09" (3/3) ... [2018-02-04 04:55:09,585 INFO L107 eAbstractionObserver]: Analyzing ICFG sll-rb-cnstr_1_true-unreach-call_true-valid-memsafety.i [2018-02-04 04:55:09,591 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:55:09,595 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 47 error locations. [2018-02-04 04:55:09,617 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:55:09,618 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:55:09,618 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 04:55:09,618 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 04:55:09,618 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:55:09,618 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:55:09,618 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:55:09,618 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:55:09,619 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:55:09,628 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2018-02-04 04:55:09,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 04:55:09,634 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:55:09,634 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:55:09,634 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 04:55:09,637 INFO L82 PathProgramCache]: Analyzing trace with hash -2026691577, 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 04:55:09,647 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:55:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:55:09,668 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:55:09,675 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:55:09,675 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:55:09,676 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:55:09,676 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:55:09,699 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 04:55:09,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:55:09,742 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 04:55:09,777 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:55:09,777 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:55:09,778 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:55:09,779 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 04:55:09,779 INFO L182 omatonBuilderFactory]: Interpolants [128#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 120#true, 121#false, 125#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 126#(= 1 (select |#valid| |main_#t~malloc0.base|)), 127#(= 1 (select |#valid| main_~list~0.base))] [2018-02-04 04:55:09,779 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 04:55:09,780 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:55:09,793 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:55:09,793 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 04:55:09,795 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 6 states. [2018-02-04 04:55:10,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:55:10,132 INFO L93 Difference]: Finished difference Result 130 states and 137 transitions. [2018-02-04 04:55:10,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 04:55:10,133 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2018-02-04 04:55:10,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:55:10,142 INFO L225 Difference]: With dead ends: 130 [2018-02-04 04:55:10,142 INFO L226 Difference]: Without dead ends: 126 [2018-02-04 04:55:10,144 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=35, Unknown=3, NotChecked=12, Total=72 [2018-02-04 04:55:10,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-02-04 04:55:10,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 111. [2018-02-04 04:55:10,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-02-04 04:55:10,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 118 transitions. [2018-02-04 04:55:10,215 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 118 transitions. Word has length 8 [2018-02-04 04:55:10,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:55:10,215 INFO L432 AbstractCegarLoop]: Abstraction has 111 states and 118 transitions. [2018-02-04 04:55:10,216 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:55:10,216 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 118 transitions. [2018-02-04 04:55:10,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 04:55:10,216 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:55:10,216 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:55:10,216 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 04:55:10,217 INFO L82 PathProgramCache]: Analyzing trace with hash -2026691576, 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 04:55:10,220 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:55:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:55:10,228 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:55:10,228 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:55:10,228 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:55:10,228 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:55:10,267 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |c_#length| %1 8)) :qid itp)) :qid itp)) is different from true [2018-02-04 04:55:10,288 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:55:10,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:55:10,292 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 04:55:10,309 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:55:10,309 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:55:10,309 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:55:10,310 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 04:55:10,310 INFO L182 omatonBuilderFactory]: Interpolants [384#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 376#true, 377#false, 381#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |#length| %1 8)) :qid itp)) :qid itp)), 382#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 383#(and (<= (+ main_~list~0.offset 4) (select |#length| main_~list~0.base)) (<= 0 main_~list~0.offset))] [2018-02-04 04:55:10,310 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 04:55:10,311 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:55:10,311 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:55:10,312 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 04:55:10,312 INFO L87 Difference]: Start difference. First operand 111 states and 118 transitions. Second operand 6 states. [2018-02-04 04:55:10,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:55:10,545 INFO L93 Difference]: Finished difference Result 157 states and 168 transitions. [2018-02-04 04:55:10,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:55:10,546 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2018-02-04 04:55:10,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:55:10,547 INFO L225 Difference]: With dead ends: 157 [2018-02-04 04:55:10,547 INFO L226 Difference]: Without dead ends: 157 [2018-02-04 04:55:10,548 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 04:55:10,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-02-04 04:55:10,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 142. [2018-02-04 04:55:10,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-02-04 04:55:10,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 165 transitions. [2018-02-04 04:55:10,558 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 165 transitions. Word has length 8 [2018-02-04 04:55:10,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:55:10,558 INFO L432 AbstractCegarLoop]: Abstraction has 142 states and 165 transitions. [2018-02-04 04:55:10,558 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:55:10,558 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 165 transitions. [2018-02-04 04:55:10,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-02-04 04:55:10,558 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:55:10,559 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:55:10,559 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 04:55:10,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1597070529, 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 04:55:10,563 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:55:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:55:10,572 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:55:10,574 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:55:10,574 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:55:10,574 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:55:10,574 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:55:10,615 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |c_#length| %1 8)) :qid itp)) :qid itp)) is different from true [2018-02-04 04:55:10,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:55:10,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:55:10,718 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:55:10,718 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:55:10,718 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:55:10,719 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 04:55:10,719 INFO L182 omatonBuilderFactory]: Interpolants [688#true, 689#false, 693#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |#length| %1 8)) :qid itp)) :qid itp)), 694#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 695#(and (<= (+ main_~list~0.offset 8) (select |#length| main_~list~0.base)) (<= 0 (+ main_~list~0.offset 4))), 696#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:55:10,719 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 04:55:10,719 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:55:10,719 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:55:10,719 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 04:55:10,720 INFO L87 Difference]: Start difference. First operand 142 states and 165 transitions. Second operand 6 states. [2018-02-04 04:55:10,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:55:10,942 INFO L93 Difference]: Finished difference Result 155 states and 166 transitions. [2018-02-04 04:55:10,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:55:10,942 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2018-02-04 04:55:10,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:55:10,943 INFO L225 Difference]: With dead ends: 155 [2018-02-04 04:55:10,943 INFO L226 Difference]: Without dead ends: 155 [2018-02-04 04:55:10,944 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=28, Unknown=2, NotChecked=10, Total=56 [2018-02-04 04:55:10,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2018-02-04 04:55:10,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 141. [2018-02-04 04:55:10,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-02-04 04:55:10,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 163 transitions. [2018-02-04 04:55:10,951 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 163 transitions. Word has length 9 [2018-02-04 04:55:10,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:55:10,951 INFO L432 AbstractCegarLoop]: Abstraction has 141 states and 163 transitions. [2018-02-04 04:55:10,951 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:55:10,951 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 163 transitions. [2018-02-04 04:55:10,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 04:55:10,952 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:55:10,952 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:55:10,952 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 04:55:10,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1176954998, 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 04:55:10,956 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:55:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:55:10,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:55:10,989 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 04:55:11,006 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:55:11,006 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:55:11,006 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:55:11,007 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 04:55:11,007 INFO L182 omatonBuilderFactory]: Interpolants [997#true, 998#false, 1002#(= 1 (select |#valid| main_~list~0.base)), 1003#(= 1 (select |#valid| main_~end~0.base)), 1004#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:55:11,007 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 04:55:11,007 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:55:11,007 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:55:11,007 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:55:11,007 INFO L87 Difference]: Start difference. First operand 141 states and 163 transitions. Second operand 5 states. [2018-02-04 04:55:11,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:55:11,148 INFO L93 Difference]: Finished difference Result 161 states and 184 transitions. [2018-02-04 04:55:11,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:55:11,148 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-02-04 04:55:11,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:55:11,149 INFO L225 Difference]: With dead ends: 161 [2018-02-04 04:55:11,149 INFO L226 Difference]: Without dead ends: 161 [2018-02-04 04:55:11,149 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:55:11,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2018-02-04 04:55:11,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 136. [2018-02-04 04:55:11,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-02-04 04:55:11,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 159 transitions. [2018-02-04 04:55:11,156 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 159 transitions. Word has length 15 [2018-02-04 04:55:11,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:55:11,157 INFO L432 AbstractCegarLoop]: Abstraction has 136 states and 159 transitions. [2018-02-04 04:55:11,157 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:55:11,157 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 159 transitions. [2018-02-04 04:55:11,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 04:55:11,157 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:55:11,157 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:55:11,158 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 04:55:11,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1176954997, 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) [2018-02-04 04:55:11,162 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:55:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:55:11,203 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: Unsupported proof rule: (let ((a!1 (= (+ 0 (* (- 1) (select |#length_13| |main_#t~malloc0.base_5|))) (* (- 1) (select |#length_13| |main_#t~malloc0.base_5|))))) (rewrite a!1)) [2018-02-04 04:55:11,204 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 92 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$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-02-04 04:55:11,209 INFO L168 Benchmark]: Toolchain (without parser) took 2158.22 ms. Allocated memory was 385.9 MB in the beginning and 593.0 MB in the end (delta: 207.1 MB). Free memory was 339.9 MB in the beginning and 416.8 MB in the end (delta: -76.9 MB). Peak memory consumption was 130.2 MB. Max. memory is 5.3 GB. [2018-02-04 04:55:11,210 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 385.9 MB. Free memory is still 345.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:55:11,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 154.33 ms. Allocated memory is still 385.9 MB. Free memory was 339.9 MB in the beginning and 326.7 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. [2018-02-04 04:55:11,211 INFO L168 Benchmark]: Boogie Preprocessor took 29.29 ms. Allocated memory is still 385.9 MB. Free memory is still 326.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:55:11,211 INFO L168 Benchmark]: RCFGBuilder took 344.43 ms. Allocated memory is still 385.9 MB. Free memory was 324.1 MB in the beginning and 291.0 MB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 5.3 GB. [2018-02-04 04:55:11,212 INFO L168 Benchmark]: TraceAbstraction took 1627.36 ms. Allocated memory was 385.9 MB in the beginning and 593.0 MB in the end (delta: 207.1 MB). Free memory was 291.0 MB in the beginning and 416.8 MB in the end (delta: -125.9 MB). Peak memory consumption was 81.2 MB. Max. memory is 5.3 GB. [2018-02-04 04:55:11,214 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 385.9 MB. Free memory is still 345.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 154.33 ms. Allocated memory is still 385.9 MB. Free memory was 339.9 MB in the beginning and 326.7 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 29.29 ms. Allocated memory is still 385.9 MB. Free memory is still 326.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 344.43 ms. Allocated memory is still 385.9 MB. Free memory was 324.1 MB in the beginning and 291.0 MB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1627.36 ms. Allocated memory was 385.9 MB in the beginning and 593.0 MB in the end (delta: 207.1 MB). Free memory was 291.0 MB in the beginning and 416.8 MB in the end (delta: -125.9 MB). Peak memory consumption was 81.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 92 column 283: theory not supported by interpolation or bad proof de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 92 column 283: theory not supported by interpolation or bad proof: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1420) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sll-rb-cnstr_1_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-55-11-221.csv Received shutdown request...