java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf -i ../../../trunk/examples/svcomp/memsafety-ext2/optional_data_creation_test04_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-26d9e06-m [2018-02-02 10:59:44,983 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 10:59:44,984 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 10:59:44,992 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 10:59:44,993 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 10:59:44,993 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 10:59:44,994 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 10:59:44,996 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 10:59:44,997 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 10:59:44,997 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 10:59:44,998 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 10:59:44,998 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 10:59:44,999 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 10:59:45,000 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 10:59:45,000 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 10:59:45,002 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 10:59:45,004 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 10:59:45,005 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 10:59:45,005 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 10:59:45,006 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 10:59:45,008 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-02 10:59:45,008 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-02 10:59:45,008 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-02 10:59:45,009 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-02 10:59:45,010 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-02 10:59:45,010 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-02 10:59:45,011 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-02 10:59:45,011 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-02 10:59:45,011 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-02 10:59:45,011 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 10:59:45,012 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 10:59:45,012 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-02-02 10:59:45,021 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 10:59:45,021 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 10:59:45,022 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 10:59:45,022 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 10:59:45,023 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 10:59:45,023 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 10:59:45,023 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 10:59:45,023 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 10:59:45,023 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 10:59:45,023 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 10:59:45,024 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 10:59:45,024 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 10:59:45,024 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 10:59:45,024 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 10:59:45,024 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 10:59:45,024 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 10:59:45,025 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 10:59:45,025 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 10:59:45,025 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 10:59:45,025 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 10:59:45,025 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 10:59:45,025 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 10:59:45,025 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-02 10:59:45,026 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-02 10:59:45,026 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-02 10:59:45,054 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 10:59:45,066 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 10:59:45,070 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 10:59:45,072 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 10:59:45,073 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 10:59:45,073 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety-ext2/optional_data_creation_test04_false-valid-memtrack.i [2018-02-02 10:59:45,201 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 10:59:45,202 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 10:59:45,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 10:59:45,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 10:59:45,208 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 10:59:45,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:59:45" (1/1) ... [2018-02-02 10:59:45,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55f62d9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:59:45, skipping insertion in model container [2018-02-02 10:59:45,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 10:59:45" (1/1) ... [2018-02-02 10:59:45,223 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:59:45,250 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 10:59:45,340 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:59:45,352 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 10:59:45,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:59:45 WrapperNode [2018-02-02 10:59:45,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 10:59:45,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 10:59:45,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 10:59:45,357 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 10:59:45,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:59:45" (1/1) ... [2018-02-02 10:59:45,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:59:45" (1/1) ... [2018-02-02 10:59:45,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:59:45" (1/1) ... [2018-02-02 10:59:45,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:59:45" (1/1) ... [2018-02-02 10:59:45,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:59:45" (1/1) ... [2018-02-02 10:59:45,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:59:45" (1/1) ... [2018-02-02 10:59:45,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:59:45" (1/1) ... [2018-02-02 10:59:45,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 10:59:45,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 10:59:45,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 10:59:45,382 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 10:59:45,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:59:45" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 10:59:45,415 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 10:59:45,415 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 10:59:45,415 INFO L136 BoogieDeclarations]: Found implementation of procedure create_data [2018-02-02 10:59:45,416 INFO L136 BoogieDeclarations]: Found implementation of procedure freeData [2018-02-02 10:59:45,416 INFO L136 BoogieDeclarations]: Found implementation of procedure append [2018-02-02 10:59:45,416 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 10:59:45,416 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 10:59:45,416 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 10:59:45,416 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-02 10:59:45,416 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-02 10:59:45,416 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 10:59:45,416 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 10:59:45,416 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 10:59:45,416 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 10:59:45,416 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 10:59:45,417 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 10:59:45,417 INFO L128 BoogieDeclarations]: Found specification of procedure create_data [2018-02-02 10:59:45,417 INFO L128 BoogieDeclarations]: Found specification of procedure freeData [2018-02-02 10:59:45,417 INFO L128 BoogieDeclarations]: Found specification of procedure append [2018-02-02 10:59:45,417 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 10:59:45,417 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 10:59:45,417 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 10:59:45,717 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 10:59:45,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:59:45 BoogieIcfgContainer [2018-02-02 10:59:45,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 10:59:45,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 10:59:45,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 10:59:45,721 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 10:59:45,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 10:59:45" (1/3) ... [2018-02-02 10:59:45,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2f0d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:59:45, skipping insertion in model container [2018-02-02 10:59:45,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 10:59:45" (2/3) ... [2018-02-02 10:59:45,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2f0d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 10:59:45, skipping insertion in model container [2018-02-02 10:59:45,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 10:59:45" (3/3) ... [2018-02-02 10:59:45,724 INFO L107 eAbstractionObserver]: Analyzing ICFG optional_data_creation_test04_false-valid-memtrack.i [2018-02-02 10:59:45,732 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-02 10:59:45,738 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 45 error locations. [2018-02-02 10:59:45,767 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 10:59:45,768 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 10:59:45,768 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-02 10:59:45,768 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-02 10:59:45,768 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 10:59:45,768 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 10:59:45,768 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 10:59:45,768 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 10:59:45,769 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 10:59:45,781 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states. [2018-02-02 10:59:45,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-02-02 10:59:45,788 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:59:45,789 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:59:45,789 INFO L371 AbstractCegarLoop]: === Iteration 1 === [create_dataErr4RequiresViolation, create_dataErr6RequiresViolation, create_dataErr0RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr1RequiresViolation, create_dataErr7RequiresViolation, create_dataErr9RequiresViolation, create_dataErr2RequiresViolation, create_dataErr8RequiresViolation, freeDataErr6RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, freeDataErr7RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr4RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr1RequiresViolation, appendErr5RequiresViolation, appendErr6RequiresViolation]=== [2018-02-02 10:59:45,793 INFO L82 PathProgramCache]: Analyzing trace with hash -548983798, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-02 10:59:45,801 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:59:45,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:59:45,822 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-02 10:59:45,829 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:59:45,829 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:59:45,830 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:59:45,830 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:59:45,867 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |c_#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)) is different from true [2018-02-02 10:59:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:59:45,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:59:45,921 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:59:45,921 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 10:59:45,922 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:59:45,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:59:45,923 INFO L182 omatonBuilderFactory]: Interpolants [129#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 130#(= 1 (select |#valid| |main_~#list~0.base|)), 131#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 124#true, 125#false] [2018-02-02 10:59:45,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:59:45,924 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 10:59:45,936 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 10:59:45,937 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2018-02-02 10:59:45,939 INFO L87 Difference]: Start difference. First operand 121 states. Second operand 5 states. [2018-02-02 10:59:46,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:59:46,290 INFO L93 Difference]: Finished difference Result 133 states and 140 transitions. [2018-02-02 10:59:46,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 10:59:46,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2018-02-02 10:59:46,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:59:46,302 INFO L225 Difference]: With dead ends: 133 [2018-02-02 10:59:46,302 INFO L226 Difference]: Without dead ends: 130 [2018-02-02 10:59:46,304 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 [2018-02-02 10:59:46,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-02-02 10:59:46,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 121. [2018-02-02 10:59:46,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-02-02 10:59:46,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 129 transitions. [2018-02-02 10:59:46,406 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 129 transitions. Word has length 7 [2018-02-02 10:59:46,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:59:46,406 INFO L432 AbstractCegarLoop]: Abstraction has 121 states and 129 transitions. [2018-02-02 10:59:46,406 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 10:59:46,406 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 129 transitions. [2018-02-02 10:59:46,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-02-02 10:59:46,407 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:59:46,407 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:59:46,407 INFO L371 AbstractCegarLoop]: === Iteration 2 === [create_dataErr4RequiresViolation, create_dataErr6RequiresViolation, create_dataErr0RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr1RequiresViolation, create_dataErr7RequiresViolation, create_dataErr9RequiresViolation, create_dataErr2RequiresViolation, create_dataErr8RequiresViolation, freeDataErr6RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, freeDataErr7RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr4RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr1RequiresViolation, appendErr5RequiresViolation, appendErr6RequiresViolation]=== [2018-02-02 10:59:46,407 INFO L82 PathProgramCache]: Analyzing trace with hash -548983797, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-02 10:59:46,411 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:59:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:59:46,420 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-02 10:59:46,423 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:59:46,423 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:59:46,423 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:59:46,423 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:59:46,429 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 [2018-02-02 10:59:46,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:59:46,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:59:46,477 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:59:46,477 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 10:59:46,477 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:59:46,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:59:46,478 INFO L182 omatonBuilderFactory]: Interpolants [388#true, 389#false, 393#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 4) (store |#length| %1 4)) :qid itp)) :qid itp)), 394#(and (<= 0 |main_~#list~0.offset|) (= 4 (select |#length| |main_~#list~0.base|)) (<= (+ |main_~#list~0.offset| 4) (select |#length| |main_~#list~0.base|))), 395#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-02 10:59:46,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:59:46,479 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 10:59:46,480 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 10:59:46,480 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2018-02-02 10:59:46,480 INFO L87 Difference]: Start difference. First operand 121 states and 129 transitions. Second operand 5 states. [2018-02-02 10:59:46,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:59:46,666 INFO L93 Difference]: Finished difference Result 127 states and 136 transitions. [2018-02-02 10:59:46,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 10:59:46,666 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2018-02-02 10:59:46,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:59:46,667 INFO L225 Difference]: With dead ends: 127 [2018-02-02 10:59:46,667 INFO L226 Difference]: Without dead ends: 127 [2018-02-02 10:59:46,668 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 [2018-02-02 10:59:46,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-02-02 10:59:46,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 120. [2018-02-02 10:59:46,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-02-02 10:59:46,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 128 transitions. [2018-02-02 10:59:46,674 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 128 transitions. Word has length 7 [2018-02-02 10:59:46,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:59:46,674 INFO L432 AbstractCegarLoop]: Abstraction has 120 states and 128 transitions. [2018-02-02 10:59:46,674 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 10:59:46,674 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 128 transitions. [2018-02-02 10:59:46,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 10:59:46,674 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:59:46,675 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:59:46,675 INFO L371 AbstractCegarLoop]: === Iteration 3 === [create_dataErr4RequiresViolation, create_dataErr6RequiresViolation, create_dataErr0RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr1RequiresViolation, create_dataErr7RequiresViolation, create_dataErr9RequiresViolation, create_dataErr2RequiresViolation, create_dataErr8RequiresViolation, freeDataErr6RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, freeDataErr7RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr4RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr1RequiresViolation, appendErr5RequiresViolation, appendErr6RequiresViolation]=== [2018-02-02 10:59:46,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1805977305, 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 [2018-02-02 10:59:46,679 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:59:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:59:46,707 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier [2018-02-02 10:59:46,712 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:59:46,712 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:59:46,712 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:59:46,713 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:59:46,713 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:59:46,713 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:59:46,806 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 [2018-02-02 10:59:46,806 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-02 10:59:46,808 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 30 treesize of output 29 [2018-02-02 10:59:46,809 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-02 10:59:46,810 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 [2018-02-02 10:59:46,811 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-02 10:59:46,860 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 [2018-02-02 10:59:46,861 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-02 10:59:46,871 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-02 10:59:46,871 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:121, output treesize:15 [2018-02-02 10:59:46,882 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:59:46,882 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:59:46,883 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:59:46,883 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:59:46,883 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:59:46,883 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 10:59:46,975 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 [2018-02-02 10:59:46,975 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-02 10:59:46,978 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 [2018-02-02 10:59:46,978 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-02 10:59:46,982 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 30 treesize of output 29 [2018-02-02 10:59:46,983 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-02 10:59:47,032 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 [2018-02-02 10:59:47,032 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-02 10:59:47,044 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-02 10:59:47,044 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:121, output treesize:15 [2018-02-02 10:59:47,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:59:47,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:59:47,103 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 10:59:47,104 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-02 10:59:47,104 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 10:59:47,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:59:47,104 INFO L182 omatonBuilderFactory]: Interpolants [645#true, 646#false, 650#(= 1 (select |#valid| |main_~#list~0.base|)), 651#(forall ((%1 Int)) (= (select (store |#valid| %1 1) |append_#in~pointerToList.base|) 1)), 652#(forall ((v_prenex_5 Int)) (= 1 (select (store |#valid| v_prenex_5 1) append_~pointerToList.base))), 653#(= 1 (select |#valid| append_~pointerToList.base)), 654#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-02 10:59:47,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 10:59:47,105 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-02 10:59:47,105 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-02 10:59:47,105 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-02-02 10:59:47,105 INFO L87 Difference]: Start difference. First operand 120 states and 128 transitions. Second operand 7 states. [2018-02-02 10:59:47,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 10:59:47,551 INFO L93 Difference]: Finished difference Result 157 states and 168 transitions. [2018-02-02 10:59:47,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-02 10:59:47,551 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-02-02 10:59:47,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 10:59:47,553 INFO L225 Difference]: With dead ends: 157 [2018-02-02 10:59:47,553 INFO L226 Difference]: Without dead ends: 157 [2018-02-02 10:59:47,553 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-02-02 10:59:47,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-02-02 10:59:47,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 141. [2018-02-02 10:59:47,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-02-02 10:59:47,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 162 transitions. [2018-02-02 10:59:47,563 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 162 transitions. Word has length 14 [2018-02-02 10:59:47,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 10:59:47,563 INFO L432 AbstractCegarLoop]: Abstraction has 141 states and 162 transitions. [2018-02-02 10:59:47,564 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-02 10:59:47,564 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 162 transitions. [2018-02-02 10:59:47,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 10:59:47,564 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 10:59:47,564 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 10:59:47,564 INFO L371 AbstractCegarLoop]: === Iteration 4 === [create_dataErr4RequiresViolation, create_dataErr6RequiresViolation, create_dataErr0RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr1RequiresViolation, create_dataErr7RequiresViolation, create_dataErr9RequiresViolation, create_dataErr2RequiresViolation, create_dataErr8RequiresViolation, freeDataErr6RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, freeDataErr7RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr4RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr1RequiresViolation, appendErr5RequiresViolation, appendErr6RequiresViolation]=== [2018-02-02 10:59:47,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1805977306, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-02 10:59:47,567 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 10:59:47,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 10:59:47,591 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)) [2018-02-02 10:59:47,591 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 99 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) [2018-02-02 10:59:47,594 INFO L168 Benchmark]: Toolchain (without parser) took 2392.13 ms. Allocated memory was 402.1 MB in the beginning and 561.5 MB in the end (delta: 159.4 MB). Free memory was 356.2 MB in the beginning and 350.2 MB in the end (delta: 6.0 MB). Peak memory consumption was 165.4 MB. Max. memory is 5.3 GB. [2018-02-02 10:59:47,595 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 402.1 MB. Free memory is still 362.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 10:59:47,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 154.32 ms. Allocated memory is still 402.1 MB. Free memory was 356.2 MB in the beginning and 345.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-02 10:59:47,595 INFO L168 Benchmark]: Boogie Preprocessor took 24.64 ms. Allocated memory is still 402.1 MB. Free memory was 345.6 MB in the beginning and 344.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-02 10:59:47,595 INFO L168 Benchmark]: RCFGBuilder took 335.96 ms. Allocated memory is still 402.1 MB. Free memory was 343.0 MB in the beginning and 309.6 MB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 5.3 GB. [2018-02-02 10:59:47,596 INFO L168 Benchmark]: TraceAbstraction took 1874.50 ms. Allocated memory was 402.1 MB in the beginning and 561.5 MB in the end (delta: 159.4 MB). Free memory was 309.6 MB in the beginning and 350.2 MB in the end (delta: -40.6 MB). Peak memory consumption was 118.8 MB. Max. memory is 5.3 GB. [2018-02-02 10:59:47,597 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 402.1 MB. Free memory is still 362.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 154.32 ms. Allocated memory is still 402.1 MB. Free memory was 356.2 MB in the beginning and 345.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 24.64 ms. Allocated memory is still 402.1 MB. Free memory was 345.6 MB in the beginning and 344.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 335.96 ms. Allocated memory is still 402.1 MB. Free memory was 343.0 MB in the beginning and 309.6 MB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1874.50 ms. Allocated memory was 402.1 MB in the beginning and 561.5 MB in the end (delta: 159.4 MB). Free memory was 309.6 MB in the beginning and 350.2 MB in the end (delta: -40.6 MB). Peak memory consumption was 118.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 99 column 343: theory not supported by interpolation or bad proof de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 99 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/optional_data_creation_test04_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_10-59-47-603.csv Received shutdown request...