java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf -i ../../../trunk/examples/svcomp/memsafety/test-0134_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:32:16,952 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:32:16,953 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:32:16,964 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:32:16,964 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:32:16,965 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:32:16,966 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:32:16,967 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:32:16,969 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:32:16,970 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:32:16,970 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:32:16,970 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:32:16,971 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:32:16,972 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:32:16,973 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:32:16,974 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:32:16,976 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:32:16,978 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:32:16,978 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:32:16,979 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:32:16,980 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 04:32:16,981 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 04:32:16,981 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 04:32:16,982 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 04:32:16,982 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 04:32:16,983 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 04:32:16,983 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 04:32:16,984 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 04:32:16,984 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 04:32:16,984 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:32:16,985 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:32:16,985 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 04:32:16,994 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:32:16,995 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:32:16,996 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:32:16,996 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:32:16,996 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:32:16,996 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:32:16,996 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:32:16,996 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:32:16,997 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:32:16,997 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:32:16,997 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:32:16,997 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:32:16,997 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:32:16,997 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:32:16,997 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:32:16,998 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:32:16,998 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:32:16,998 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:32:16,998 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:32:16,998 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:32:16,998 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:32:16,999 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:32:16,999 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 04:32:16,999 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 04:32:16,999 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:32:17,028 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:32:17,035 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:32:17,037 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:32:17,038 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:32:17,038 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:32:17,039 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0134_true-valid-memsafety.i [2018-02-04 04:32:17,171 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:32:17,173 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:32:17,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:32:17,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:32:17,180 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:32:17,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:32:17" (1/1) ... [2018-02-04 04:32:17,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef0a5f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:32:17, skipping insertion in model container [2018-02-04 04:32:17,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:32:17" (1/1) ... [2018-02-04 04:32:17,198 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:32:17,228 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:32:17,328 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:32:17,345 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:32:17,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:32:17 WrapperNode [2018-02-04 04:32:17,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:32:17,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:32:17,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:32:17,354 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:32:17,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:32:17" (1/1) ... [2018-02-04 04:32:17,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:32:17" (1/1) ... [2018-02-04 04:32:17,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:32:17" (1/1) ... [2018-02-04 04:32:17,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:32:17" (1/1) ... [2018-02-04 04:32:17,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:32:17" (1/1) ... [2018-02-04 04:32:17,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:32:17" (1/1) ... [2018-02-04 04:32:17,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:32:17" (1/1) ... [2018-02-04 04:32:17,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:32:17,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:32:17,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:32:17,382 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:32:17,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:32:17" (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 04:32:17,418 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:32:17,418 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:32:17,418 INFO L136 BoogieDeclarations]: Found implementation of procedure list_empty [2018-02-04 04:32:17,418 INFO L136 BoogieDeclarations]: Found implementation of procedure __list_add [2018-02-04 04:32:17,418 INFO L136 BoogieDeclarations]: Found implementation of procedure __list_del [2018-02-04 04:32:17,419 INFO L136 BoogieDeclarations]: Found implementation of procedure list_add [2018-02-04 04:32:17,419 INFO L136 BoogieDeclarations]: Found implementation of procedure list_del [2018-02-04 04:32:17,419 INFO L136 BoogieDeclarations]: Found implementation of procedure list_move [2018-02-04 04:32:17,419 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_insert [2018-02-04 04:32:17,419 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_read [2018-02-04 04:32:17,419 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_destroy [2018-02-04 04:32:17,419 INFO L136 BoogieDeclarations]: Found implementation of procedure val_from_node [2018-02-04 04:32:17,419 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_seek_max [2018-02-04 04:32:17,420 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_sort [2018-02-04 04:32:17,420 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:32:17,420 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 04:32:17,420 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 04:32:17,420 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 04:32:17,420 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 04:32:17,420 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:32:17,420 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:32:17,421 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:32:17,421 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 04:32:17,421 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-02-04 04:32:17,421 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:32:17,421 INFO L128 BoogieDeclarations]: Found specification of procedure list_empty [2018-02-04 04:32:17,421 INFO L128 BoogieDeclarations]: Found specification of procedure __list_add [2018-02-04 04:32:17,421 INFO L128 BoogieDeclarations]: Found specification of procedure __list_del [2018-02-04 04:32:17,421 INFO L128 BoogieDeclarations]: Found specification of procedure list_add [2018-02-04 04:32:17,421 INFO L128 BoogieDeclarations]: Found specification of procedure list_del [2018-02-04 04:32:17,422 INFO L128 BoogieDeclarations]: Found specification of procedure list_move [2018-02-04 04:32:17,422 INFO L128 BoogieDeclarations]: Found specification of procedure gl_insert [2018-02-04 04:32:17,422 INFO L128 BoogieDeclarations]: Found specification of procedure gl_read [2018-02-04 04:32:17,422 INFO L128 BoogieDeclarations]: Found specification of procedure gl_destroy [2018-02-04 04:32:17,422 INFO L128 BoogieDeclarations]: Found specification of procedure val_from_node [2018-02-04 04:32:17,422 INFO L128 BoogieDeclarations]: Found specification of procedure gl_seek_max [2018-02-04 04:32:17,422 INFO L128 BoogieDeclarations]: Found specification of procedure gl_sort [2018-02-04 04:32:17,423 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:32:17,423 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:32:17,423 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:32:17,858 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:32:17,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:32:17 BoogieIcfgContainer [2018-02-04 04:32:17,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:32:17,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:32:17,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:32:17,861 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:32:17,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:32:17" (1/3) ... [2018-02-04 04:32:17,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9c4c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:32:17, skipping insertion in model container [2018-02-04 04:32:17,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:32:17" (2/3) ... [2018-02-04 04:32:17,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9c4c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:32:17, skipping insertion in model container [2018-02-04 04:32:17,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:32:17" (3/3) ... [2018-02-04 04:32:17,864 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0134_true-valid-memsafety.i [2018-02-04 04:32:17,870 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:32:17,875 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 55 error locations. [2018-02-04 04:32:17,897 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:32:17,897 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:32:17,898 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 04:32:17,898 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 04:32:17,898 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:32:17,898 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:32:17,898 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:32:17,898 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:32:17,898 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:32:17,909 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2018-02-04 04:32:17,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-02-04 04:32:17,915 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:32:17,916 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-02-04 04:32:17,916 INFO L371 AbstractCegarLoop]: === Iteration 1 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-02-04 04:32:17,919 INFO L82 PathProgramCache]: Analyzing trace with hash 8457694, 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 04:32:17,930 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:32:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:32:17,964 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 04:32:17,997 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:32:17,998 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 04:32:17,999 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:32:17,999 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 04:32:17,999 INFO L182 omatonBuilderFactory]: Interpolants [182#true, 183#false, 184#(= 1 (select |#valid| |~#gl_list.base|))] [2018-02-04 04:32:18,000 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 04:32:18,000 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 04:32:18,013 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 04:32:18,014 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:32:18,015 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 3 states. [2018-02-04 04:32:18,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:32:18,186 INFO L93 Difference]: Finished difference Result 182 states and 194 transitions. [2018-02-04 04:32:18,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 04:32:18,187 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-02-04 04:32:18,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:32:18,196 INFO L225 Difference]: With dead ends: 182 [2018-02-04 04:32:18,196 INFO L226 Difference]: Without dead ends: 179 [2018-02-04 04:32:18,198 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:32:18,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-02-04 04:32:18,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 178. [2018-02-04 04:32:18,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-02-04 04:32:18,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 191 transitions. [2018-02-04 04:32:18,237 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 191 transitions. Word has length 4 [2018-02-04 04:32:18,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:32:18,237 INFO L432 AbstractCegarLoop]: Abstraction has 178 states and 191 transitions. [2018-02-04 04:32:18,237 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 04:32:18,238 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 191 transitions. [2018-02-04 04:32:18,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-02-04 04:32:18,238 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:32:18,238 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-02-04 04:32:18,238 INFO L371 AbstractCegarLoop]: === Iteration 2 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-02-04 04:32:18,238 INFO L82 PathProgramCache]: Analyzing trace with hash 8457695, 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 04:32:18,296 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:32:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:32:18,307 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:32:18,309 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:18,310 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:18,311 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:18,311 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:18,339 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |c_#length| %1 8)) :qid itp)) :qid itp)) is different from true [2018-02-04 04:32:18,363 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 04:32:18,383 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:32:18,383 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 04:32:18,383 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:32:18,383 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 04:32:18,383 INFO L182 omatonBuilderFactory]: Interpolants [545#true, 546#false, 547#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |#length| %1 8)) :qid itp)) :qid itp)), 548#(and (<= 0 |~#gl_list.offset|) (= 8 (select |#length| |~#gl_list.base|)) (<= (+ |~#gl_list.offset| 4) (select |#length| |~#gl_list.base|)))] [2018-02-04 04:32:18,384 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 04:32:18,384 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:32:18,385 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:32:18,385 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2018-02-04 04:32:18,385 INFO L87 Difference]: Start difference. First operand 178 states and 191 transitions. Second operand 4 states. [2018-02-04 04:32:18,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:32:18,491 INFO L93 Difference]: Finished difference Result 181 states and 195 transitions. [2018-02-04 04:32:18,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:32:18,492 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-02-04 04:32:18,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:32:18,493 INFO L225 Difference]: With dead ends: 181 [2018-02-04 04:32:18,493 INFO L226 Difference]: Without dead ends: 181 [2018-02-04 04:32:18,494 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2018-02-04 04:32:18,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-02-04 04:32:18,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 177. [2018-02-04 04:32:18,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-02-04 04:32:18,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 190 transitions. [2018-02-04 04:32:18,507 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 190 transitions. Word has length 4 [2018-02-04 04:32:18,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:32:18,507 INFO L432 AbstractCegarLoop]: Abstraction has 177 states and 190 transitions. [2018-02-04 04:32:18,508 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:32:18,508 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 190 transitions. [2018-02-04 04:32:18,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-02-04 04:32:18,508 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:32:18,508 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-02-04 04:32:18,508 INFO L371 AbstractCegarLoop]: === Iteration 3 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-02-04 04:32:18,509 INFO L82 PathProgramCache]: Analyzing trace with hash 262188637, 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 04:32:18,512 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:32:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:32:18,525 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:32:18,526 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:18,526 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:18,527 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:18,527 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:18,537 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |c_#length| %1 8)) :qid itp)) :qid itp)) is different from true [2018-02-04 04:32:18,562 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 04:32:18,589 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:32:18,589 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 04:32:18,590 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:32:18,590 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 04:32:18,590 INFO L182 omatonBuilderFactory]: Interpolants [907#true, 908#false, 909#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |#length| %1 8)) :qid itp)) :qid itp)), 910#(and (<= 0 (+ |~#gl_list.offset| 4)) (= 8 (select |#length| |~#gl_list.base|)) (<= (+ |~#gl_list.offset| 8) (select |#length| |~#gl_list.base|)))] [2018-02-04 04:32:18,590 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 04:32:18,591 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:32:18,591 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:32:18,591 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2018-02-04 04:32:18,591 INFO L87 Difference]: Start difference. First operand 177 states and 190 transitions. Second operand 4 states. [2018-02-04 04:32:18,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:32:18,687 INFO L93 Difference]: Finished difference Result 180 states and 194 transitions. [2018-02-04 04:32:18,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:32:18,688 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2018-02-04 04:32:18,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:32:18,689 INFO L225 Difference]: With dead ends: 180 [2018-02-04 04:32:18,689 INFO L226 Difference]: Without dead ends: 180 [2018-02-04 04:32:18,690 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2018-02-04 04:32:18,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2018-02-04 04:32:18,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 176. [2018-02-04 04:32:18,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-02-04 04:32:18,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 189 transitions. [2018-02-04 04:32:18,698 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 189 transitions. Word has length 5 [2018-02-04 04:32:18,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:32:18,698 INFO L432 AbstractCegarLoop]: Abstraction has 176 states and 189 transitions. [2018-02-04 04:32:18,698 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:32:18,698 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 189 transitions. [2018-02-04 04:32:18,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 04:32:18,698 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:32:18,699 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:32:18,699 INFO L371 AbstractCegarLoop]: === Iteration 4 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-02-04 04:32:18,699 INFO L82 PathProgramCache]: Analyzing trace with hash 809839361, 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 04:32:18,705 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:32:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:32:18,719 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:32:18,720 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:18,721 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:18,721 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:18,721 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:18,725 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |c_#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)) is different from true [2018-02-04 04:32:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:32:18,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:32:18,770 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:32:18,770 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:32:18,770 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:32:18,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:32:18,771 INFO L182 omatonBuilderFactory]: Interpolants [1267#true, 1268#false, 1275#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 1276#(= 1 (select |#valid| |gl_insert_#t~malloc14.base|)), 1277#(= 1 (select |#valid| gl_insert_~node~0.base)), 1278#(and (= |~#gl_list.offset| |old(~#gl_list.offset)|) (= |~#gl_list.base| |old(~#gl_list.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))] [2018-02-04 04:32:18,771 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 04:32:18,771 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:32:18,771 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:32:18,771 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 04:32:18,771 INFO L87 Difference]: Start difference. First operand 176 states and 189 transitions. Second operand 6 states. [2018-02-04 04:32:18,794 WARN L1011 $PredicateComparison]: unable to prove that (and (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |c_#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)) (= |c_~#gl_list.offset| |c_old(~#gl_list.offset)|) (= |c_~#gl_list.base| |c_old(~#gl_list.base)|) (= |c_#valid| |c_old(#valid)|) (= |c_#NULL.base| |c_old(#NULL.base)|) (= |c_#memory_int| |c_old(#memory_int)|) (= |c_#NULL.offset| |c_old(#NULL.offset)|) (= |c_#memory_$Pointer$.base| |c_old(#memory_$Pointer$.base)|) (= |c_old(#length)| |c_#length|) (= |c_#memory_$Pointer$.offset| |c_old(#memory_$Pointer$.offset)|)) is different from false [2018-02-04 04:32:19,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:32:19,222 INFO L93 Difference]: Finished difference Result 190 states and 206 transitions. [2018-02-04 04:32:19,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 04:32:19,223 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-02-04 04:32:19,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:32:19,224 INFO L225 Difference]: With dead ends: 190 [2018-02-04 04:32:19,224 INFO L226 Difference]: Without dead ends: 190 [2018-02-04 04:32:19,225 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=21, Unknown=2, NotChecked=18, Total=56 [2018-02-04 04:32:19,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2018-02-04 04:32:19,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 175. [2018-02-04 04:32:19,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-02-04 04:32:19,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 188 transitions. [2018-02-04 04:32:19,233 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 188 transitions. Word has length 16 [2018-02-04 04:32:19,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:32:19,234 INFO L432 AbstractCegarLoop]: Abstraction has 175 states and 188 transitions. [2018-02-04 04:32:19,234 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:32:19,234 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 188 transitions. [2018-02-04 04:32:19,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 04:32:19,234 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:32:19,234 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:32:19,235 INFO L371 AbstractCegarLoop]: === Iteration 5 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-02-04 04:32:19,235 INFO L82 PathProgramCache]: Analyzing trace with hash 809839362, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:32:19,240 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:32:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:32:19,255 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:32:19,257 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:19,257 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:19,258 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:19,258 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:19,295 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 12) (store |c_#length| %1 12)) :qid itp)) :qid itp)) is different from true [2018-02-04 04:32:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:32:19,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:32:19,344 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:32:19,344 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:32:19,345 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:32:19,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:32:19,345 INFO L182 omatonBuilderFactory]: Interpolants [1648#true, 1649#false, 1656#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 12) (store |#length| %1 12)) :qid itp)) :qid itp)), 1657#(and (= 12 (select |#length| |gl_insert_#t~malloc14.base|)) (= 0 |gl_insert_#t~malloc14.offset|)), 1658#(and (<= 0 gl_insert_~node~0.offset) (<= (+ gl_insert_~node~0.offset 4) (select |#length| gl_insert_~node~0.base))), 1659#(and (= |~#gl_list.offset| |old(~#gl_list.offset)|) (= |~#gl_list.base| |old(~#gl_list.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))] [2018-02-04 04:32:19,345 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 04:32:19,345 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:32:19,345 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:32:19,346 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 04:32:19,346 INFO L87 Difference]: Start difference. First operand 175 states and 188 transitions. Second operand 6 states. [2018-02-04 04:32:19,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:32:19,655 INFO L93 Difference]: Finished difference Result 189 states and 205 transitions. [2018-02-04 04:32:19,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:32:19,656 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-02-04 04:32:19,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:32:19,658 INFO L225 Difference]: With dead ends: 189 [2018-02-04 04:32:19,658 INFO L226 Difference]: Without dead ends: 189 [2018-02-04 04:32:19,658 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=28, Unknown=2, NotChecked=10, Total=56 [2018-02-04 04:32:19,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2018-02-04 04:32:19,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 174. [2018-02-04 04:32:19,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-02-04 04:32:19,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 187 transitions. [2018-02-04 04:32:19,671 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 187 transitions. Word has length 16 [2018-02-04 04:32:19,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:32:19,672 INFO L432 AbstractCegarLoop]: Abstraction has 174 states and 187 transitions. [2018-02-04 04:32:19,672 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:32:19,672 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 187 transitions. [2018-02-04 04:32:19,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 04:32:19,672 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:32:19,672 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:32:19,673 INFO L371 AbstractCegarLoop]: === Iteration 6 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-02-04 04:32:19,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1093319294, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:32:19,678 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:32:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:32:19,699 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:32:19,711 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:19,711 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:19,711 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:19,711 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:19,808 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 28 treesize of output 27 [2018-02-04 04:32:19,809 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 04:32:19,810 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 19 treesize of output 18 [2018-02-04 04:32:19,811 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 04:32:19,812 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 [2018-02-04 04:32:19,813 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 04:32:19,864 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 04:32:19,864 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 04:32:19,871 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 04:32:19,872 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:121, output treesize:15 [2018-02-04 04:32:19,877 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:19,877 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:19,877 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:19,878 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:32:19,961 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 04:32:19,962 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 04:32:19,963 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 04:32:19,963 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 04:32:19,966 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 04:32:19,966 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 04:32:19,967 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 04:32:19,968 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 04:32:19,970 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 04:32:19,970 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 04:32:19,972 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 04:32:19,973 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 04:32:20,000 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 04:32:20,000 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-02-04 04:32:20,009 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 04:32:20,009 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 3 variables, input treesize:121, output treesize:15 [2018-02-04 04:32:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:32:20,032 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 04:32:20,049 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:32:20,049 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:32:20,049 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:32:20,050 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 04:32:20,050 INFO L182 omatonBuilderFactory]: Interpolants [2035#(= 1 (select |#valid| |~#gl_list.base|)), 2036#(= 1 (select |#valid| |list_add_#in~head.base|)), 2037#(= 1 (select |#valid| list_add_~head.base)), 2038#(and (= |~#gl_list.offset| |old(~#gl_list.offset)|) (= |~#gl_list.base| |old(~#gl_list.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#memory_int| |old(#memory_int)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)), 2027#true, 2028#false] [2018-02-04 04:32:20,050 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 04:32:20,050 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:32:20,050 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:32:20,050 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:32:20,050 INFO L87 Difference]: Start difference. First operand 174 states and 187 transitions. Second operand 6 states. [2018-02-04 04:32:20,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:32:20,446 INFO L93 Difference]: Finished difference Result 197 states and 212 transitions. [2018-02-04 04:32:20,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-04 04:32:20,447 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-02-04 04:32:20,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:32:20,448 INFO L225 Difference]: With dead ends: 197 [2018-02-04 04:32:20,448 INFO L226 Difference]: Without dead ends: 197 [2018-02-04 04:32:20,448 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2018-02-04 04:32:20,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2018-02-04 04:32:20,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 180. [2018-02-04 04:32:20,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-02-04 04:32:20,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 194 transitions. [2018-02-04 04:32:20,456 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 194 transitions. Word has length 19 [2018-02-04 04:32:20,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:32:20,456 INFO L432 AbstractCegarLoop]: Abstraction has 180 states and 194 transitions. [2018-02-04 04:32:20,456 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:32:20,456 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 194 transitions. [2018-02-04 04:32:20,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 04:32:20,456 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:32:20,456 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:32:20,456 INFO L371 AbstractCegarLoop]: === Iteration 7 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-02-04 04:32:20,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1093319295, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:32:20,459 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:32:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:32:20,493 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:32:20,494 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 152 column 516: Sort mismatch at argument #1 for function (declare-fun >= (Int Int) Bool) supplied sort is Bool 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 04:32:20,497 INFO L168 Benchmark]: Toolchain (without parser) took 3325.26 ms. Allocated memory was 403.2 MB in the beginning and 657.5 MB in the end (delta: 254.3 MB). Free memory was 357.2 MB in the beginning and 551.8 MB in the end (delta: -194.6 MB). Peak memory consumption was 59.7 MB. Max. memory is 5.3 GB. [2018-02-04 04:32:20,498 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 403.2 MB. Free memory is still 363.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:32:20,499 INFO L168 Benchmark]: CACSL2BoogieTranslator took 179.74 ms. Allocated memory is still 403.2 MB. Free memory was 357.2 MB in the beginning and 345.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. [2018-02-04 04:32:20,499 INFO L168 Benchmark]: Boogie Preprocessor took 28.24 ms. Allocated memory is still 403.2 MB. Free memory was 345.2 MB in the beginning and 343.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:32:20,499 INFO L168 Benchmark]: RCFGBuilder took 476.65 ms. Allocated memory is still 403.2 MB. Free memory was 343.8 MB in the beginning and 298.6 MB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:32:20,500 INFO L168 Benchmark]: TraceAbstraction took 2637.29 ms. Allocated memory was 403.2 MB in the beginning and 657.5 MB in the end (delta: 254.3 MB). Free memory was 298.6 MB in the beginning and 551.8 MB in the end (delta: -253.2 MB). Peak memory consumption was 1.1 MB. Max. memory is 5.3 GB. [2018-02-04 04:32:20,502 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 403.2 MB. Free memory is still 363.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 179.74 ms. Allocated memory is still 403.2 MB. Free memory was 357.2 MB in the beginning and 345.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 28.24 ms. Allocated memory is still 403.2 MB. Free memory was 345.2 MB in the beginning and 343.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 476.65 ms. Allocated memory is still 403.2 MB. Free memory was 343.8 MB in the beginning and 298.6 MB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2637.29 ms. Allocated memory was 403.2 MB in the beginning and 657.5 MB in the end (delta: 254.3 MB). Free memory was 298.6 MB in the beginning and 551.8 MB in the end (delta: -253.2 MB). Peak memory consumption was 1.1 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 152 column 516: Sort mismatch at argument #1 for function (declare-fun >= (Int Int) Bool) supplied sort is Bool de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 152 column 516: Sort mismatch at argument #1 for function (declare-fun >= (Int Int) Bool) supplied sort is Bool: 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-0134_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-32-20-511.csv Received shutdown request...