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/list-ext-properties/test-0232_1_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:40:53,872 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:40:53,873 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:40:53,886 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:40:53,886 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:40:53,887 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:40:53,888 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:40:53,889 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:40:53,891 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:40:53,891 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:40:53,892 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:40:53,892 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:40:53,893 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:40:53,893 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:40:53,894 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:40:53,896 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:40:53,897 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:40:53,899 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:40:53,900 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:40:53,900 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:40:53,902 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 04:40:53,905 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:40:53,906 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:40:53,906 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 04:40:53,915 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:40:53,915 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:40:53,916 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:40:53,916 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:40:53,916 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:40:53,916 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:40:53,917 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:40:53,917 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:40:53,917 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:40:53,917 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:40:53,917 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:40:53,917 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:40:53,917 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:40:53,918 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:40:53,918 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:40:53,918 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:40:53,918 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:40:53,918 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:40:53,918 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:40:53,919 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:40:53,919 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:40:53,919 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:40:53,919 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 04:40:53,919 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 04:40:53,919 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:40:53,950 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:40:53,961 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:40:53,964 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:40:53,965 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:40:53,966 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:40:53,966 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/test-0232_1_false-valid-memtrack_true-termination.i [2018-02-04 04:40:54,079 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:40:54,080 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:40:54,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:40:54,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:40:54,086 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:40:54,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:40:54" (1/1) ... [2018-02-04 04:40:54,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34e66bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:40:54, skipping insertion in model container [2018-02-04 04:40:54,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:40:54" (1/1) ... [2018-02-04 04:40:54,103 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:40:54,132 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:40:54,213 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:40:54,225 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:40:54,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:40:54 WrapperNode [2018-02-04 04:40:54,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:40:54,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:40:54,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:40:54,231 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:40:54,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:40:54" (1/1) ... [2018-02-04 04:40:54,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:40:54" (1/1) ... [2018-02-04 04:40:54,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:40:54" (1/1) ... [2018-02-04 04:40:54,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:40:54" (1/1) ... [2018-02-04 04:40:54,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:40:54" (1/1) ... [2018-02-04 04:40:54,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:40:54" (1/1) ... [2018-02-04 04:40:54,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:40:54" (1/1) ... [2018-02-04 04:40:54,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:40:54,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:40:54,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:40:54,259 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:40:54,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:40:54" (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 04:40:54,294 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:40:54,294 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:40:54,294 INFO L136 BoogieDeclarations]: Found implementation of procedure append [2018-02-04 04:40:54,294 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:40:54,295 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 04:40:54,295 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 04:40:54,295 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:40:54,295 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:40:54,295 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:40:54,295 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 04:40:54,295 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 04:40:54,295 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:40:54,296 INFO L128 BoogieDeclarations]: Found specification of procedure append [2018-02-04 04:40:54,296 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:40:54,296 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:40:54,296 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:40:54,605 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:40:54,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:40:54 BoogieIcfgContainer [2018-02-04 04:40:54,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:40:54,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:40:54,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:40:54,608 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:40:54,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:40:54" (1/3) ... [2018-02-04 04:40:54,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae80d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:40:54, skipping insertion in model container [2018-02-04 04:40:54,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:40:54" (2/3) ... [2018-02-04 04:40:54,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae80d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:40:54, skipping insertion in model container [2018-02-04 04:40:54,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:40:54" (3/3) ... [2018-02-04 04:40:54,611 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0232_1_false-valid-memtrack_true-termination.i [2018-02-04 04:40:54,617 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:40:54,622 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 43 error locations. [2018-02-04 04:40:54,647 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:40:54,647 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:40:54,647 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 04:40:54,647 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 04:40:54,647 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:40:54,647 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:40:54,647 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:40:54,648 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:40:54,648 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:40:54,658 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2018-02-04 04:40:54,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-02-04 04:40:54,665 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:40:54,666 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:40:54,666 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-02-04 04:40:54,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1218068532, 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 04:40:54,678 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:40:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:40:54,714 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:40:54,724 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:54,724 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:54,725 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:54,725 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:54,771 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 04:40:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:40:54,795 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 04:40:54,825 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:40:54,825 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:40:54,826 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:40:54,826 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 04:40:54,827 INFO L182 omatonBuilderFactory]: Interpolants [113#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 114#(= 1 (select |#valid| |main_~#list~0.base|)), 115#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~c |old(~c)|) (= |#NULL.offset| |old(#NULL.offset)|)), 108#true, 109#false] [2018-02-04 04:40:54,827 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 04:40:54,828 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:40:54,835 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:40:54,835 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2018-02-04 04:40:54,837 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 5 states. [2018-02-04 04:40:55,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:40:55,147 INFO L93 Difference]: Finished difference Result 110 states and 116 transitions. [2018-02-04 04:40:55,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:40:55,149 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2018-02-04 04:40:55,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:40:55,159 INFO L225 Difference]: With dead ends: 110 [2018-02-04 04:40:55,159 INFO L226 Difference]: Without dead ends: 107 [2018-02-04 04:40:55,161 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=12, Unknown=2, NotChecked=6, Total=30 [2018-02-04 04:40:55,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-02-04 04:40:55,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 102. [2018-02-04 04:40:55,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-02-04 04:40:55,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 108 transitions. [2018-02-04 04:40:55,236 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 108 transitions. Word has length 7 [2018-02-04 04:40:55,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:40:55,237 INFO L432 AbstractCegarLoop]: Abstraction has 102 states and 108 transitions. [2018-02-04 04:40:55,237 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:40:55,237 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 108 transitions. [2018-02-04 04:40:55,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-02-04 04:40:55,237 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:40:55,237 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:40:55,237 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-02-04 04:40:55,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1218068531, 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 04:40:55,241 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:40:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:40:55,249 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:40:55,252 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:55,252 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:55,252 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:55,253 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:55,263 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 4) (store |c_#length| %1 4)) :qid itp)) :qid itp)) is different from true [2018-02-04 04:40:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:40:55,297 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 04:40:55,313 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:40:55,313 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:40:55,313 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:40:55,313 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 04:40:55,314 INFO L182 omatonBuilderFactory]: Interpolants [336#(and (<= 0 |main_~#list~0.offset|) (= 4 (select |#length| |main_~#list~0.base|)) (<= (+ |main_~#list~0.offset| 4) (select |#length| |main_~#list~0.base|))), 337#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~c |old(~c)|) (= |#NULL.offset| |old(#NULL.offset)|)), 330#true, 331#false, 335#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 4) (store |#length| %1 4)) :qid itp)) :qid itp))] [2018-02-04 04:40:55,314 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 04:40:55,315 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:40:55,315 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:40:55,315 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2018-02-04 04:40:55,315 INFO L87 Difference]: Start difference. First operand 102 states and 108 transitions. Second operand 5 states. [2018-02-04 04:40:55,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:40:55,496 INFO L93 Difference]: Finished difference Result 103 states and 110 transitions. [2018-02-04 04:40:55,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:40:55,496 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2018-02-04 04:40:55,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:40:55,497 INFO L225 Difference]: With dead ends: 103 [2018-02-04 04:40:55,498 INFO L226 Difference]: Without dead ends: 103 [2018-02-04 04:40:55,498 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=12, Unknown=2, NotChecked=6, Total=30 [2018-02-04 04:40:55,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-02-04 04:40:55,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2018-02-04 04:40:55,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-02-04 04:40:55,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 107 transitions. [2018-02-04 04:40:55,504 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 107 transitions. Word has length 7 [2018-02-04 04:40:55,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:40:55,505 INFO L432 AbstractCegarLoop]: Abstraction has 101 states and 107 transitions. [2018-02-04 04:40:55,505 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:40:55,505 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 107 transitions. [2018-02-04 04:40:55,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 04:40:55,505 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:40:55,505 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:40:55,506 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-02-04 04:40:55,506 INFO L82 PathProgramCache]: Analyzing trace with hash 2000515713, 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 04:40:55,508 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:40:55,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:40:55,552 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier [2018-02-04 04:40:55,557 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:55,557 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:55,557 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:55,558 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:55,558 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:55,558 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:55,674 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2018-02-04 04:40:55,676 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 04:40:55,680 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 32 [2018-02-04 04:40:55,681 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 04:40:55,685 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2018-02-04 04:40:55,686 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 04:40:55,688 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2018-02-04 04:40:55,689 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 04:40:55,693 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2018-02-04 04:40:55,694 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 04:40:55,701 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2018-02-04 04:40:55,702 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 04:40:55,743 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2018-02-04 04:40:55,743 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-02-04 04:40:55,762 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2018-02-04 04:40:55,762 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-02-04 04:40:55,769 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 04:40:55,769 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 3 variables, input treesize:121, output treesize:15 [2018-02-04 04:40:55,778 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:55,778 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:55,778 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:55,779 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:55,779 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:55,779 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:55,895 WARN L146 SmtUtils]: Spent 109ms on a formula simplification. DAG size of input: 37 DAG size of output 33 [2018-02-04 04:40:55,900 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2018-02-04 04:40:55,900 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 04:40:55,904 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2018-02-04 04:40:55,905 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 04:40:55,907 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-02-04 04:40:55,908 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 04:40:55,910 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2018-02-04 04:40:55,910 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 04:40:55,912 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 32 [2018-02-04 04:40:55,913 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 04:40:55,918 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2018-02-04 04:40:55,919 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 04:40:55,960 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-02-04 04:40:55,961 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-02-04 04:40:55,975 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 04:40:55,975 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 3 variables, input treesize:121, output treesize:15 [2018-02-04 04:40:56,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:40:56,019 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 04:40:56,021 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:40:56,021 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 04:40:56,021 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:40:56,021 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 04:40:56,021 INFO L182 omatonBuilderFactory]: Interpolants [544#true, 545#false, 549#(= 1 (select |#valid| |main_~#list~0.base|)), 550#(forall ((%1 Int)) (= (select (store |#valid| %1 1) |append_#in~plist.base|) 1)), 551#(forall ((%1 Int)) (= (select (store |#valid| %1 1) append_~plist.base) 1)), 552#(= 1 (select |#valid| append_~plist.base)), 553#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~c |old(~c)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:40:56,022 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 04:40:56,022 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 04:40:56,022 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 04:40:56,022 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-02-04 04:40:56,022 INFO L87 Difference]: Start difference. First operand 101 states and 107 transitions. Second operand 7 states. [2018-02-04 04:40:56,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:40:56,239 INFO L93 Difference]: Finished difference Result 99 states and 105 transitions. [2018-02-04 04:40:56,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:40:56,241 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-02-04 04:40:56,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:40:56,242 INFO L225 Difference]: With dead ends: 99 [2018-02-04 04:40:56,242 INFO L226 Difference]: Without dead ends: 99 [2018-02-04 04:40:56,242 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-02-04 04:40:56,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-02-04 04:40:56,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 95. [2018-02-04 04:40:56,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-02-04 04:40:56,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 100 transitions. [2018-02-04 04:40:56,248 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 100 transitions. Word has length 14 [2018-02-04 04:40:56,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:40:56,248 INFO L432 AbstractCegarLoop]: Abstraction has 95 states and 100 transitions. [2018-02-04 04:40:56,248 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 04:40:56,248 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 100 transitions. [2018-02-04 04:40:56,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 04:40:56,249 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:40:56,249 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:40:56,249 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-02-04 04:40:56,249 INFO L82 PathProgramCache]: Analyzing trace with hash 2000515714, 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 04:40:56,252 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:40:56,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:40:56,277 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier Unsupported proof rule: (let ((a!1 (= (+ 0 (* (- 1) (select |#length_11| |main_~#list~0.base_5|))) (* (- 1) (select |#length_11| |main_~#list~0.base_5|))))) (rewrite a!1)) [2018-02-04 04:40:56,277 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 103 column 343: 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 04:40:56,280 INFO L168 Benchmark]: Toolchain (without parser) took 2200.06 ms. Allocated memory was 404.8 MB in the beginning and 624.4 MB in the end (delta: 219.7 MB). Free memory was 361.4 MB in the beginning and 582.9 MB in the end (delta: -221.5 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:40:56,281 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 404.8 MB. Free memory is still 368.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:40:56,281 INFO L168 Benchmark]: CACSL2BoogieTranslator took 149.21 ms. Allocated memory is still 404.8 MB. Free memory was 361.4 MB in the beginning and 350.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:40:56,281 INFO L168 Benchmark]: Boogie Preprocessor took 27.68 ms. Allocated memory is still 404.8 MB. Free memory was 350.9 MB in the beginning and 349.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:40:56,281 INFO L168 Benchmark]: RCFGBuilder took 346.67 ms. Allocated memory is still 404.8 MB. Free memory was 349.5 MB in the beginning and 319.1 MB in the end (delta: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 5.3 GB. [2018-02-04 04:40:56,282 INFO L168 Benchmark]: TraceAbstraction took 1673.31 ms. Allocated memory was 404.8 MB in the beginning and 624.4 MB in the end (delta: 219.7 MB). Free memory was 319.1 MB in the beginning and 582.9 MB in the end (delta: -263.9 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:40:56,283 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 404.8 MB. Free memory is still 368.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 149.21 ms. Allocated memory is still 404.8 MB. Free memory was 361.4 MB in the beginning and 350.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 27.68 ms. Allocated memory is still 404.8 MB. Free memory was 350.9 MB in the beginning and 349.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 346.67 ms. Allocated memory is still 404.8 MB. Free memory was 349.5 MB in the beginning and 319.1 MB in the end (delta: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1673.31 ms. Allocated memory was 404.8 MB in the beginning and 624.4 MB in the end (delta: 219.7 MB). Free memory was 319.1 MB in the beginning and 582.9 MB in the end (delta: -263.9 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 103 column 343: theory not supported by interpolation or bad proof de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 103 column 343: 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/test-0232_1_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-40-56-290.csv Received shutdown request...