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/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test15_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 06:03:12,606 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 06:03:12,608 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 06:03:12,622 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 06:03:12,622 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 06:03:12,623 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 06:03:12,624 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 06:03:12,626 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 06:03:12,628 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 06:03:12,628 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 06:03:12,629 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 06:03:12,630 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 06:03:12,630 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 06:03:12,632 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 06:03:12,632 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 06:03:12,635 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 06:03:12,643 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 06:03:12,645 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 06:03:12,645 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 06:03:12,646 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 06:03:12,648 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-25 06:03:12,649 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-25 06:03:12,649 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-25 06:03:12,650 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-25 06:03:12,651 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-25 06:03:12,652 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-25 06:03:12,652 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-25 06:03:12,653 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-25 06:03:12,653 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-25 06:03:12,653 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 06:03:12,654 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 06:03:12,654 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf [2018-01-25 06:03:12,664 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 06:03:12,664 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 06:03:12,665 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 06:03:12,665 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 06:03:12,665 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 06:03:12,666 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 06:03:12,666 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-25 06:03:12,666 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 06:03:12,667 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 06:03:12,667 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 06:03:12,667 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 06:03:12,667 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 06:03:12,667 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 06:03:12,668 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 06:03:12,668 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 06:03:12,668 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 06:03:12,668 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 06:03:12,668 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 06:03:12,669 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 06:03:12,669 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 06:03:12,669 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 06:03:12,669 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 06:03:12,669 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 06:03:12,670 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 06:03:12,670 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 06:03:12,670 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 06:03:12,670 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 06:03:12,670 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 06:03:12,671 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 06:03:12,671 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-25 06:03:12,671 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 06:03:12,671 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 06:03:12,671 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 06:03:12,672 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-25 06:03:12,672 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 06:03:12,673 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 06:03:12,707 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 06:03:12,718 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 06:03:12,721 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 06:03:12,722 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 06:03:12,722 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 06:03:12,722 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test15_false-valid-memtrack.i [2018-01-25 06:03:12,948 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 06:03:12,955 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 06:03:12,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 06:03:12,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 06:03:12,963 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 06:03:12,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 06:03:12" (1/1) ... [2018-01-25 06:03:12,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388a8c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:03:12, skipping insertion in model container [2018-01-25 06:03:12,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 06:03:12" (1/1) ... [2018-01-25 06:03:12,986 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 06:03:13,039 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 06:03:13,167 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 06:03:13,203 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 06:03:13,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:03:13 WrapperNode [2018-01-25 06:03:13,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 06:03:13,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 06:03:13,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 06:03:13,219 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 06:03:13,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:03:13" (1/1) ... [2018-01-25 06:03:13,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:03:13" (1/1) ... [2018-01-25 06:03:13,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:03:13" (1/1) ... [2018-01-25 06:03:13,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:03:13" (1/1) ... [2018-01-25 06:03:13,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:03:13" (1/1) ... [2018-01-25 06:03:13,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:03:13" (1/1) ... [2018-01-25 06:03:13,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:03:13" (1/1) ... [2018-01-25 06:03:13,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 06:03:13,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 06:03:13,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 06:03:13,267 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 06:03:13,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:03:13" (1/1) ... No working directory specified, using /storage/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 [2018-01-25 06:03:13,318 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 06:03:13,318 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 06:03:13,318 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2018-01-25 06:03:13,319 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2018-01-25 06:03:13,319 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2018-01-25 06:03:13,319 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2018-01-25 06:03:13,319 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_hid_get_drvdata [2018-01-25 06:03:13,319 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_hid_set_drvdata [2018-01-25 06:03:13,319 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_arvo_init_arvo_device_struct [2018-01-25 06:03:13,319 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_arvo_init_specials_unsafe [2018-01-25 06:03:13,319 INFO L136 BoogieDeclarations]: Found implementation of procedure lvd_arvo_remove_specials [2018-01-25 06:03:13,319 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_arvo_probe_unsafe [2018-01-25 06:03:13,319 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_arvo_remove [2018-01-25 06:03:13,320 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-25 06:03:13,320 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 06:03:13,320 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-25 06:03:13,320 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-25 06:03:13,320 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-25 06:03:13,320 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-25 06:03:13,321 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 06:03:13,321 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 06:03:13,321 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 06:03:13,321 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2018-01-25 06:03:13,321 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2018-01-25 06:03:13,322 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-01-25 06:03:13,322 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-25 06:03:13,322 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 06:03:13,322 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2018-01-25 06:03:13,322 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2018-01-25 06:03:13,323 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2018-01-25 06:03:13,323 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2018-01-25 06:03:13,323 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_hid_get_drvdata [2018-01-25 06:03:13,323 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_hid_set_drvdata [2018-01-25 06:03:13,323 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_arvo_init_arvo_device_struct [2018-01-25 06:03:13,323 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_arvo_init_specials_unsafe [2018-01-25 06:03:13,323 INFO L128 BoogieDeclarations]: Found specification of procedure lvd_arvo_remove_specials [2018-01-25 06:03:13,323 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_arvo_probe_unsafe [2018-01-25 06:03:13,324 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_arvo_remove [2018-01-25 06:03:13,324 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-25 06:03:13,324 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 06:03:13,324 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 06:03:13,324 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 06:03:13,865 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 06:03:13,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 06:03:13 BoogieIcfgContainer [2018-01-25 06:03:13,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 06:03:13,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-25 06:03:13,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-25 06:03:13,925 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-25 06:03:13,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.01 06:03:12" (1/3) ... [2018-01-25 06:03:13,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264cebe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 06:03:13, skipping insertion in model container [2018-01-25 06:03:13,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:03:13" (2/3) ... [2018-01-25 06:03:13,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264cebe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 06:03:13, skipping insertion in model container [2018-01-25 06:03:13,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 06:03:13" (3/3) ... [2018-01-25 06:03:13,929 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test15_false-valid-memtrack.i [2018-01-25 06:03:13,935 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-25 06:03:13,943 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 45 error locations. [2018-01-25 06:03:13,987 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-25 06:03:13,987 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-25 06:03:13,987 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-25 06:03:13,987 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-25 06:03:13,988 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-25 06:03:13,988 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-25 06:03:13,988 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-25 06:03:13,988 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-25 06:03:13,989 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-25 06:03:14,010 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-25 06:03:14,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-25 06:03:14,016 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:03:14,018 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:03:14,018 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ldv_dev_set_drvdataErr0RequiresViolation, ldv_dev_set_drvdataErr1RequiresViolation, ldv_dev_get_drvdataErr1RequiresViolation, ldv_dev_get_drvdataErr0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr14RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr13RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr8RequiresViolation, entry_pointErr11RequiresViolation, entry_pointErr3RequiresViolation, entry_pointErr16RequiresViolation, entry_pointErr7RequiresViolation, entry_pointErr12RequiresViolation, entry_pointErr15RequiresViolation, entry_pointErr17RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr9RequiresViolation, entry_pointErr10RequiresViolation, ldv_arvo_init_arvo_device_structErr0RequiresViolation, ldv_arvo_init_arvo_device_structErr2RequiresViolation, ldv_arvo_init_arvo_device_structErr4RequiresViolation, ldv_arvo_init_arvo_device_structErr5RequiresViolation, ldv_arvo_init_arvo_device_structErr1RequiresViolation, ldv_arvo_init_arvo_device_structErr3RequiresViolation, lvd_arvo_remove_specialsErr4RequiresViolation, lvd_arvo_remove_specialsErr1RequiresViolation, lvd_arvo_remove_specialsErr0RequiresViolation, lvd_arvo_remove_specialsErr6RequiresViolation, lvd_arvo_remove_specialsErr7RequiresViolation, lvd_arvo_remove_specialsErr5RequiresViolation, lvd_arvo_remove_specialsErr2RequiresViolation, lvd_arvo_remove_specialsErr3RequiresViolation, ldv_arvo_init_specials_unsafeErr3RequiresViolation, ldv_arvo_init_specials_unsafeErr1RequiresViolation, ldv_arvo_init_specials_unsafeErr5RequiresViolation, ldv_arvo_init_specials_unsafeErr4RequiresViolation, ldv_arvo_init_specials_unsafeErr2RequiresViolation, ldv_arvo_init_specials_unsafeErr0RequiresViolation, ldv_arvo_init_specials_unsafeErr6RequiresViolation, ldv_arvo_init_specials_unsafeErr7RequiresViolation]=== [2018-01-25 06:03:14,022 INFO L82 PathProgramCache]: Analyzing trace with hash 462743197, now seen corresponding path program 1 times [2018-01-25 06:03:14,024 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:03:14,073 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:03:14,074 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:03:14,074 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:03:14,074 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:03:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:03:14,132 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:03:14,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:03:14,367 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:03:14,368 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-25 06:03:14,368 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:03:14,370 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-25 06:03:14,380 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-25 06:03:14,381 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-25 06:03:14,382 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 6 states. [2018-01-25 06:03:14,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:03:14,473 INFO L93 Difference]: Finished difference Result 172 states and 184 transitions. [2018-01-25 06:03:14,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 06:03:14,475 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-01-25 06:03:14,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:03:14,486 INFO L225 Difference]: With dead ends: 172 [2018-01-25 06:03:14,487 INFO L226 Difference]: Without dead ends: 162 [2018-01-25 06:03:14,490 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-25 06:03:14,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-01-25 06:03:14,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2018-01-25 06:03:14,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2018-01-25 06:03:14,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 174 transitions. [2018-01-25 06:03:14,543 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 174 transitions. Word has length 22 [2018-01-25 06:03:14,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:03:14,545 INFO L432 AbstractCegarLoop]: Abstraction has 162 states and 174 transitions. [2018-01-25 06:03:14,545 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-25 06:03:14,545 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 174 transitions. [2018-01-25 06:03:14,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-01-25 06:03:14,546 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:03:14,547 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:03:14,547 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ldv_dev_set_drvdataErr0RequiresViolation, ldv_dev_set_drvdataErr1RequiresViolation, ldv_dev_get_drvdataErr1RequiresViolation, ldv_dev_get_drvdataErr0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr14RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr13RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr8RequiresViolation, entry_pointErr11RequiresViolation, entry_pointErr3RequiresViolation, entry_pointErr16RequiresViolation, entry_pointErr7RequiresViolation, entry_pointErr12RequiresViolation, entry_pointErr15RequiresViolation, entry_pointErr17RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr9RequiresViolation, entry_pointErr10RequiresViolation, ldv_arvo_init_arvo_device_structErr0RequiresViolation, ldv_arvo_init_arvo_device_structErr2RequiresViolation, ldv_arvo_init_arvo_device_structErr4RequiresViolation, ldv_arvo_init_arvo_device_structErr5RequiresViolation, ldv_arvo_init_arvo_device_structErr1RequiresViolation, ldv_arvo_init_arvo_device_structErr3RequiresViolation, lvd_arvo_remove_specialsErr4RequiresViolation, lvd_arvo_remove_specialsErr1RequiresViolation, lvd_arvo_remove_specialsErr0RequiresViolation, lvd_arvo_remove_specialsErr6RequiresViolation, lvd_arvo_remove_specialsErr7RequiresViolation, lvd_arvo_remove_specialsErr5RequiresViolation, lvd_arvo_remove_specialsErr2RequiresViolation, lvd_arvo_remove_specialsErr3RequiresViolation, ldv_arvo_init_specials_unsafeErr3RequiresViolation, ldv_arvo_init_specials_unsafeErr1RequiresViolation, ldv_arvo_init_specials_unsafeErr5RequiresViolation, ldv_arvo_init_specials_unsafeErr4RequiresViolation, ldv_arvo_init_specials_unsafeErr2RequiresViolation, ldv_arvo_init_specials_unsafeErr0RequiresViolation, ldv_arvo_init_specials_unsafeErr6RequiresViolation, ldv_arvo_init_specials_unsafeErr7RequiresViolation]=== [2018-01-25 06:03:14,547 INFO L82 PathProgramCache]: Analyzing trace with hash -844495449, now seen corresponding path program 1 times [2018-01-25 06:03:14,547 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:03:14,549 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:03:14,549 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:03:14,549 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:03:14,549 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:03:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:03:14,579 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:03:14,657 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-01-25 06:03:14,658 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:03:14,658 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-25 06:03:14,658 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:03:14,660 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-25 06:03:14,660 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-25 06:03:14,661 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-25 06:03:14,661 INFO L87 Difference]: Start difference. First operand 162 states and 174 transitions. Second operand 6 states. [2018-01-25 06:03:14,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:03:14,812 INFO L93 Difference]: Finished difference Result 169 states and 180 transitions. [2018-01-25 06:03:14,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 06:03:14,812 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2018-01-25 06:03:14,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:03:14,814 INFO L225 Difference]: With dead ends: 169 [2018-01-25 06:03:14,814 INFO L226 Difference]: Without dead ends: 162 [2018-01-25 06:03:14,815 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-25 06:03:14,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-01-25 06:03:14,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2018-01-25 06:03:14,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2018-01-25 06:03:14,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 173 transitions. [2018-01-25 06:03:14,826 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 173 transitions. Word has length 33 [2018-01-25 06:03:14,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:03:14,826 INFO L432 AbstractCegarLoop]: Abstraction has 162 states and 173 transitions. [2018-01-25 06:03:14,826 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-25 06:03:14,826 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 173 transitions. [2018-01-25 06:03:14,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-01-25 06:03:14,827 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:03:14,827 INFO L322 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:03:14,827 INFO L371 AbstractCegarLoop]: === Iteration 3 === [ldv_dev_set_drvdataErr0RequiresViolation, ldv_dev_set_drvdataErr1RequiresViolation, ldv_dev_get_drvdataErr1RequiresViolation, ldv_dev_get_drvdataErr0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr14RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr13RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr8RequiresViolation, entry_pointErr11RequiresViolation, entry_pointErr3RequiresViolation, entry_pointErr16RequiresViolation, entry_pointErr7RequiresViolation, entry_pointErr12RequiresViolation, entry_pointErr15RequiresViolation, entry_pointErr17RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr9RequiresViolation, entry_pointErr10RequiresViolation, ldv_arvo_init_arvo_device_structErr0RequiresViolation, ldv_arvo_init_arvo_device_structErr2RequiresViolation, ldv_arvo_init_arvo_device_structErr4RequiresViolation, ldv_arvo_init_arvo_device_structErr5RequiresViolation, ldv_arvo_init_arvo_device_structErr1RequiresViolation, ldv_arvo_init_arvo_device_structErr3RequiresViolation, lvd_arvo_remove_specialsErr4RequiresViolation, lvd_arvo_remove_specialsErr1RequiresViolation, lvd_arvo_remove_specialsErr0RequiresViolation, lvd_arvo_remove_specialsErr6RequiresViolation, lvd_arvo_remove_specialsErr7RequiresViolation, lvd_arvo_remove_specialsErr5RequiresViolation, lvd_arvo_remove_specialsErr2RequiresViolation, lvd_arvo_remove_specialsErr3RequiresViolation, ldv_arvo_init_specials_unsafeErr3RequiresViolation, ldv_arvo_init_specials_unsafeErr1RequiresViolation, ldv_arvo_init_specials_unsafeErr5RequiresViolation, ldv_arvo_init_specials_unsafeErr4RequiresViolation, ldv_arvo_init_specials_unsafeErr2RequiresViolation, ldv_arvo_init_specials_unsafeErr0RequiresViolation, ldv_arvo_init_specials_unsafeErr6RequiresViolation, ldv_arvo_init_specials_unsafeErr7RequiresViolation]=== [2018-01-25 06:03:14,827 INFO L82 PathProgramCache]: Analyzing trace with hash 902320110, now seen corresponding path program 1 times [2018-01-25 06:03:14,827 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:03:14,829 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:03:14,829 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:03:14,829 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:03:14,829 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:03:14,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:03:14,859 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:03:15,109 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-01-25 06:03:15,109 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:03:15,109 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 06:03:15,110 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 45 with the following transitions: [2018-01-25 06:03:15,112 INFO L201 CegarAbsIntRunner]: [72], [78], [79], [81], [86], [88], [93], [96], [147], [148], [154], [155], [157], [158], [194], [208], [209], [210], [211], [212], [213], [220], [221], [222], [223], [224] [2018-01-25 06:03:15,166 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-25 06:03:15,166 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-25 06:03:15,656 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-25 06:03:15,657 INFO L268 AbstractInterpreter]: Visited 26 different actions 44 times. Never merged. Never widened. Never found a fixpoint. Largest state had 18 variables. [2018-01-25 06:03:15,664 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-25 06:03:15,664 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:03:15,664 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-25 06:03:15,679 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:03:15,679 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-25 06:03:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:03:15,739 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-25 06:03:15,766 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 6 treesize of output 5 [2018-01-25 06:03:15,767 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-25 06:03:15,793 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-25 06:03:15,794 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-01-25 06:03:15,948 INFO L700 Elim1Store]: detected not equals via solver [2018-01-25 06:03:15,949 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2018-01-25 06:03:15,950 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-25 06:03:15,952 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-25 06:03:15,952 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-01-25 06:03:16,069 INFO L700 Elim1Store]: detected not equals via solver [2018-01-25 06:03:16,070 INFO L700 Elim1Store]: detected not equals via solver [2018-01-25 06:03:16,071 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-01-25 06:03:16,071 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-25 06:03:16,113 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-25 06:03:16,113 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2018-01-25 06:03:16,171 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-01-25 06:03:16,171 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-25 06:03:16,469 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-01-25 06:03:16,492 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:03:16,493 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-25 06:03:16,502 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:03:16,502 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-25 06:03:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:03:16,575 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-25 06:03:16,580 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 6 treesize of output 5 [2018-01-25 06:03:16,580 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-25 06:03:16,581 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-25 06:03:16,582 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-01-25 06:03:16,627 INFO L700 Elim1Store]: detected not equals via solver [2018-01-25 06:03:16,628 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2018-01-25 06:03:16,628 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-25 06:03:16,630 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-25 06:03:16,630 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-01-25 06:03:16,666 INFO L700 Elim1Store]: detected not equals via solver [2018-01-25 06:03:16,667 INFO L700 Elim1Store]: detected not equals via solver [2018-01-25 06:03:16,668 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-01-25 06:03:16,668 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-25 06:03:16,684 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-25 06:03:16,684 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2018-01-25 06:03:16,687 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-01-25 06:03:16,687 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-25 06:03:16,918 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-01-25 06:03:16,920 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-25 06:03:16,920 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 8, 9, 8] total 17 [2018-01-25 06:03:16,920 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-25 06:03:16,921 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-01-25 06:03:16,921 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-01-25 06:03:16,921 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2018-01-25 06:03:16,921 INFO L87 Difference]: Start difference. First operand 162 states and 173 transitions. Second operand 12 states. [2018-01-25 06:03:17,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:03:17,719 INFO L93 Difference]: Finished difference Result 210 states and 228 transitions. [2018-01-25 06:03:17,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-01-25 06:03:17,720 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 44 [2018-01-25 06:03:17,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:03:17,724 INFO L225 Difference]: With dead ends: 210 [2018-01-25 06:03:17,724 INFO L226 Difference]: Without dead ends: 205 [2018-01-25 06:03:17,725 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 155 SyntacticMatches, 13 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2018-01-25 06:03:17,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2018-01-25 06:03:17,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 175. [2018-01-25 06:03:17,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-01-25 06:03:17,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 192 transitions. [2018-01-25 06:03:17,746 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 192 transitions. Word has length 44 [2018-01-25 06:03:17,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:03:17,746 INFO L432 AbstractCegarLoop]: Abstraction has 175 states and 192 transitions. [2018-01-25 06:03:17,746 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-01-25 06:03:17,746 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 192 transitions. [2018-01-25 06:03:17,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-01-25 06:03:17,747 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:03:17,747 INFO L322 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:03:17,747 INFO L371 AbstractCegarLoop]: === Iteration 4 === [ldv_dev_set_drvdataErr0RequiresViolation, ldv_dev_set_drvdataErr1RequiresViolation, ldv_dev_get_drvdataErr1RequiresViolation, ldv_dev_get_drvdataErr0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr14RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr13RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr8RequiresViolation, entry_pointErr11RequiresViolation, entry_pointErr3RequiresViolation, entry_pointErr16RequiresViolation, entry_pointErr7RequiresViolation, entry_pointErr12RequiresViolation, entry_pointErr15RequiresViolation, entry_pointErr17RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr9RequiresViolation, entry_pointErr10RequiresViolation, ldv_arvo_init_arvo_device_structErr0RequiresViolation, ldv_arvo_init_arvo_device_structErr2RequiresViolation, ldv_arvo_init_arvo_device_structErr4RequiresViolation, ldv_arvo_init_arvo_device_structErr5RequiresViolation, ldv_arvo_init_arvo_device_structErr1RequiresViolation, ldv_arvo_init_arvo_device_structErr3RequiresViolation, lvd_arvo_remove_specialsErr4RequiresViolation, lvd_arvo_remove_specialsErr1RequiresViolation, lvd_arvo_remove_specialsErr0RequiresViolation, lvd_arvo_remove_specialsErr6RequiresViolation, lvd_arvo_remove_specialsErr7RequiresViolation, lvd_arvo_remove_specialsErr5RequiresViolation, lvd_arvo_remove_specialsErr2RequiresViolation, lvd_arvo_remove_specialsErr3RequiresViolation, ldv_arvo_init_specials_unsafeErr3RequiresViolation, ldv_arvo_init_specials_unsafeErr1RequiresViolation, ldv_arvo_init_specials_unsafeErr5RequiresViolation, ldv_arvo_init_specials_unsafeErr4RequiresViolation, ldv_arvo_init_specials_unsafeErr2RequiresViolation, ldv_arvo_init_specials_unsafeErr0RequiresViolation, ldv_arvo_init_specials_unsafeErr6RequiresViolation, ldv_arvo_init_specials_unsafeErr7RequiresViolation]=== [2018-01-25 06:03:17,748 INFO L82 PathProgramCache]: Analyzing trace with hash 902320111, now seen corresponding path program 1 times [2018-01-25 06:03:17,748 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:03:17,749 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:03:17,749 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:03:17,749 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:03:17,749 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:03:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:03:17,776 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:03:17,968 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-01-25 06:03:17,968 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:03:17,968 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 06:03:17,969 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 45 with the following transitions: [2018-01-25 06:03:17,969 INFO L201 CegarAbsIntRunner]: [72], [78], [79], [81], [86], [88], [93], [97], [147], [148], [154], [155], [157], [158], [194], [208], [209], [210], [211], [212], [213], [220], [221], [222], [223], [224] [2018-01-25 06:03:17,970 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-25 06:03:17,970 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-25 06:03:18,238 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-25 06:03:18,238 INFO L268 AbstractInterpreter]: Visited 26 different actions 44 times. Never merged. Never widened. Never found a fixpoint. Largest state had 18 variables. [2018-01-25 06:03:18,243 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-25 06:03:18,243 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:03:18,243 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-25 06:03:18,252 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:03:18,252 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-25 06:03:18,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:03:18,294 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-25 06:03:18,378 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-25 06:03:18,378 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-25 06:03:18,608 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-01-25 06:03:18,642 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-01-25 06:03:18,643 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 13 [2018-01-25 06:03:18,643 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:03:18,643 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-25 06:03:18,643 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-25 06:03:18,644 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-01-25 06:03:18,644 INFO L87 Difference]: Start difference. First operand 175 states and 192 transitions. Second operand 6 states. [2018-01-25 06:03:18,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:03:18,770 INFO L93 Difference]: Finished difference Result 349 states and 390 transitions. [2018-01-25 06:03:18,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 06:03:18,771 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2018-01-25 06:03:18,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:03:18,772 INFO L225 Difference]: With dead ends: 349 [2018-01-25 06:03:18,773 INFO L226 Difference]: Without dead ends: 176 [2018-01-25 06:03:18,774 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 80 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2018-01-25 06:03:18,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-01-25 06:03:18,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2018-01-25 06:03:18,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-01-25 06:03:18,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 193 transitions. [2018-01-25 06:03:18,793 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 193 transitions. Word has length 44 [2018-01-25 06:03:18,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:03:18,794 INFO L432 AbstractCegarLoop]: Abstraction has 176 states and 193 transitions. [2018-01-25 06:03:18,794 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-25 06:03:18,794 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 193 transitions. [2018-01-25 06:03:18,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-01-25 06:03:18,795 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:03:18,795 INFO L322 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:03:18,796 INFO L371 AbstractCegarLoop]: === Iteration 5 === [ldv_dev_set_drvdataErr0RequiresViolation, ldv_dev_set_drvdataErr1RequiresViolation, ldv_dev_get_drvdataErr1RequiresViolation, ldv_dev_get_drvdataErr0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr14RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr13RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr8RequiresViolation, entry_pointErr11RequiresViolation, entry_pointErr3RequiresViolation, entry_pointErr16RequiresViolation, entry_pointErr7RequiresViolation, entry_pointErr12RequiresViolation, entry_pointErr15RequiresViolation, entry_pointErr17RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr9RequiresViolation, entry_pointErr10RequiresViolation, ldv_arvo_init_arvo_device_structErr0RequiresViolation, ldv_arvo_init_arvo_device_structErr2RequiresViolation, ldv_arvo_init_arvo_device_structErr4RequiresViolation, ldv_arvo_init_arvo_device_structErr5RequiresViolation, ldv_arvo_init_arvo_device_structErr1RequiresViolation, ldv_arvo_init_arvo_device_structErr3RequiresViolation, lvd_arvo_remove_specialsErr4RequiresViolation, lvd_arvo_remove_specialsErr1RequiresViolation, lvd_arvo_remove_specialsErr0RequiresViolation, lvd_arvo_remove_specialsErr6RequiresViolation, lvd_arvo_remove_specialsErr7RequiresViolation, lvd_arvo_remove_specialsErr5RequiresViolation, lvd_arvo_remove_specialsErr2RequiresViolation, lvd_arvo_remove_specialsErr3RequiresViolation, ldv_arvo_init_specials_unsafeErr3RequiresViolation, ldv_arvo_init_specials_unsafeErr1RequiresViolation, ldv_arvo_init_specials_unsafeErr5RequiresViolation, ldv_arvo_init_specials_unsafeErr4RequiresViolation, ldv_arvo_init_specials_unsafeErr2RequiresViolation, ldv_arvo_init_specials_unsafeErr0RequiresViolation, ldv_arvo_init_specials_unsafeErr6RequiresViolation, ldv_arvo_init_specials_unsafeErr7RequiresViolation]=== [2018-01-25 06:03:18,796 INFO L82 PathProgramCache]: Analyzing trace with hash -506792821, now seen corresponding path program 1 times [2018-01-25 06:03:18,796 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:03:18,797 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:03:18,797 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:03:18,798 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:03:18,798 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:03:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:03:18,827 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:03:19,000 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-01-25 06:03:19,000 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:03:19,000 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 06:03:19,000 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 48 with the following transitions: [2018-01-25 06:03:19,001 INFO L201 CegarAbsIntRunner]: [72], [76], [78], [79], [81], [86], [88], [93], [97], [147], [148], [154], [155], [157], [158], [194], [208], [209], [210], [211], [212], [213], [220], [221], [222], [223], [224] [2018-01-25 06:03:19,002 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-25 06:03:19,002 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-25 06:03:29,940 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-25 06:03:29,940 INFO L268 AbstractInterpreter]: Visited 27 different actions 71 times. Merged at 3 different actions 18 times. Never widened. Found 9 fixpoints after 2 different actions. Largest state had 24 variables. [2018-01-25 06:03:29,948 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-25 06:03:29,948 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:03:29,948 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-25 06:03:29,953 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:03:29,953 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-25 06:03:29,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:03:29,981 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-25 06:03:30,057 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-01-25 06:03:30,057 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-25 06:03:32,267 WARN L143 SmtUtils]: Spent 1981ms on a formula simplification that was a NOOP. DAG size: 38 [2018-01-25 06:03:33,870 WARN L143 SmtUtils]: Spent 1567ms on a formula simplification that was a NOOP. DAG size: 40 [2018-01-25 06:03:33,885 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 11 proven. 12 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-01-25 06:03:33,905 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:03:33,905 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-25 06:03:33,908 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:03:33,909 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-25 06:03:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:03:33,974 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-25 06:03:33,997 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-01-25 06:03:33,997 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-25 06:03:34,229 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-01-25 06:03:34,231 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-25 06:03:34,270 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7, 7, 7] total 19 [2018-01-25 06:03:34,270 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-25 06:03:34,270 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-01-25 06:03:34,271 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-01-25 06:03:34,271 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2018-01-25 06:03:34,271 INFO L87 Difference]: Start difference. First operand 176 states and 193 transitions. Second operand 12 states. [2018-01-25 06:03:34,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:03:34,382 INFO L93 Difference]: Finished difference Result 351 states and 392 transitions. [2018-01-25 06:03:34,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-25 06:03:34,382 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 47 [2018-01-25 06:03:34,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:03:34,384 INFO L225 Difference]: With dead ends: 351 [2018-01-25 06:03:34,384 INFO L226 Difference]: Without dead ends: 177 [2018-01-25 06:03:34,386 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 170 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2018-01-25 06:03:34,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2018-01-25 06:03:34,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2018-01-25 06:03:34,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-01-25 06:03:34,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 194 transitions. [2018-01-25 06:03:34,402 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 194 transitions. Word has length 47 [2018-01-25 06:03:34,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:03:34,403 INFO L432 AbstractCegarLoop]: Abstraction has 177 states and 194 transitions. [2018-01-25 06:03:34,403 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-01-25 06:03:34,403 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 194 transitions. [2018-01-25 06:03:34,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-01-25 06:03:34,404 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:03:34,404 INFO L322 BasicCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:03:34,404 INFO L371 AbstractCegarLoop]: === Iteration 6 === [ldv_dev_set_drvdataErr0RequiresViolation, ldv_dev_set_drvdataErr1RequiresViolation, ldv_dev_get_drvdataErr1RequiresViolation, ldv_dev_get_drvdataErr0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr14RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr13RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr8RequiresViolation, entry_pointErr11RequiresViolation, entry_pointErr3RequiresViolation, entry_pointErr16RequiresViolation, entry_pointErr7RequiresViolation, entry_pointErr12RequiresViolation, entry_pointErr15RequiresViolation, entry_pointErr17RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr9RequiresViolation, entry_pointErr10RequiresViolation, ldv_arvo_init_arvo_device_structErr0RequiresViolation, ldv_arvo_init_arvo_device_structErr2RequiresViolation, ldv_arvo_init_arvo_device_structErr4RequiresViolation, ldv_arvo_init_arvo_device_structErr5RequiresViolation, ldv_arvo_init_arvo_device_structErr1RequiresViolation, ldv_arvo_init_arvo_device_structErr3RequiresViolation, lvd_arvo_remove_specialsErr4RequiresViolation, lvd_arvo_remove_specialsErr1RequiresViolation, lvd_arvo_remove_specialsErr0RequiresViolation, lvd_arvo_remove_specialsErr6RequiresViolation, lvd_arvo_remove_specialsErr7RequiresViolation, lvd_arvo_remove_specialsErr5RequiresViolation, lvd_arvo_remove_specialsErr2RequiresViolation, lvd_arvo_remove_specialsErr3RequiresViolation, ldv_arvo_init_specials_unsafeErr3RequiresViolation, ldv_arvo_init_specials_unsafeErr1RequiresViolation, ldv_arvo_init_specials_unsafeErr5RequiresViolation, ldv_arvo_init_specials_unsafeErr4RequiresViolation, ldv_arvo_init_specials_unsafeErr2RequiresViolation, ldv_arvo_init_specials_unsafeErr0RequiresViolation, ldv_arvo_init_specials_unsafeErr6RequiresViolation, ldv_arvo_init_specials_unsafeErr7RequiresViolation]=== [2018-01-25 06:03:34,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1284083601, now seen corresponding path program 2 times [2018-01-25 06:03:34,405 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:03:34,406 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:03:34,406 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:03:34,406 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:03:34,406 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:03:34,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:03:34,434 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:03:34,594 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-01-25 06:03:34,595 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:03:34,595 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 06:03:34,595 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-01-25 06:03:34,595 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-25 06:03:34,595 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:03:34,595 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-25 06:03:34,612 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-25 06:03:34,612 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-01-25 06:03:34,627 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-25 06:03:34,639 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-25 06:03:34,643 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-25 06:03:34,647 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-25 06:03:34,775 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-01-25 06:03:34,776 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-25 06:03:34,909 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 81 [2018-01-25 06:03:35,210 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-25 06:03:35,222 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-25 06:03:37,305 WARN L143 SmtUtils]: Spent 2031ms on a formula simplification that was a NOOP. DAG size: 49 [2018-01-25 06:03:37,311 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-25 06:03:37,486 WARN L143 SmtUtils]: Spent 125ms on a formula simplification that was a NOOP. DAG size: 50 [2018-01-25 06:03:37,494 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-25 06:03:37,636 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-25 06:03:37,661 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-01-25 06:03:37,682 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:03:37,682 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-25 06:03:37,685 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-25 06:03:37,685 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-01-25 06:03:37,702 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-25 06:03:37,725 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-25 06:03:37,754 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-25 06:03:37,760 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-25 06:03:37,954 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-01-25 06:03:37,954 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-25 06:03:40,161 WARN L143 SmtUtils]: Spent 1986ms on a formula simplification that was a NOOP. DAG size: 39 [2018-01-25 06:03:40,375 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-01-25 06:03:40,376 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-25 06:03:40,377 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8, 8, 8] total 29 [2018-01-25 06:03:40,377 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-25 06:03:40,377 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-01-25 06:03:40,377 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-01-25 06:03:40,377 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=691, Unknown=0, NotChecked=0, Total=812 [2018-01-25 06:03:40,378 INFO L87 Difference]: Start difference. First operand 177 states and 194 transitions. Second operand 14 states. [2018-01-25 06:03:40,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:03:40,592 INFO L93 Difference]: Finished difference Result 353 states and 394 transitions. [2018-01-25 06:03:40,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-25 06:03:40,593 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 50 [2018-01-25 06:03:40,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:03:40,594 INFO L225 Difference]: With dead ends: 353 [2018-01-25 06:03:40,595 INFO L226 Difference]: Without dead ends: 178 [2018-01-25 06:03:40,598 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 174 SyntacticMatches, 6 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=161, Invalid=895, Unknown=0, NotChecked=0, Total=1056 [2018-01-25 06:03:40,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-01-25 06:03:40,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2018-01-25 06:03:40,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-01-25 06:03:40,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 195 transitions. [2018-01-25 06:03:40,615 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 195 transitions. Word has length 50 [2018-01-25 06:03:40,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:03:40,615 INFO L432 AbstractCegarLoop]: Abstraction has 178 states and 195 transitions. [2018-01-25 06:03:40,615 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-01-25 06:03:40,616 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 195 transitions. [2018-01-25 06:03:40,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-01-25 06:03:40,616 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:03:40,617 INFO L322 BasicCegarLoop]: trace histogram [9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:03:40,617 INFO L371 AbstractCegarLoop]: === Iteration 7 === [ldv_dev_set_drvdataErr0RequiresViolation, ldv_dev_set_drvdataErr1RequiresViolation, ldv_dev_get_drvdataErr1RequiresViolation, ldv_dev_get_drvdataErr0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr14RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr13RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr8RequiresViolation, entry_pointErr11RequiresViolation, entry_pointErr3RequiresViolation, entry_pointErr16RequiresViolation, entry_pointErr7RequiresViolation, entry_pointErr12RequiresViolation, entry_pointErr15RequiresViolation, entry_pointErr17RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr9RequiresViolation, entry_pointErr10RequiresViolation, ldv_arvo_init_arvo_device_structErr0RequiresViolation, ldv_arvo_init_arvo_device_structErr2RequiresViolation, ldv_arvo_init_arvo_device_structErr4RequiresViolation, ldv_arvo_init_arvo_device_structErr5RequiresViolation, ldv_arvo_init_arvo_device_structErr1RequiresViolation, ldv_arvo_init_arvo_device_structErr3RequiresViolation, lvd_arvo_remove_specialsErr4RequiresViolation, lvd_arvo_remove_specialsErr1RequiresViolation, lvd_arvo_remove_specialsErr0RequiresViolation, lvd_arvo_remove_specialsErr6RequiresViolation, lvd_arvo_remove_specialsErr7RequiresViolation, lvd_arvo_remove_specialsErr5RequiresViolation, lvd_arvo_remove_specialsErr2RequiresViolation, lvd_arvo_remove_specialsErr3RequiresViolation, ldv_arvo_init_specials_unsafeErr3RequiresViolation, ldv_arvo_init_specials_unsafeErr1RequiresViolation, ldv_arvo_init_specials_unsafeErr5RequiresViolation, ldv_arvo_init_specials_unsafeErr4RequiresViolation, ldv_arvo_init_specials_unsafeErr2RequiresViolation, ldv_arvo_init_specials_unsafeErr0RequiresViolation, ldv_arvo_init_specials_unsafeErr6RequiresViolation, ldv_arvo_init_specials_unsafeErr7RequiresViolation]=== [2018-01-25 06:03:40,617 INFO L82 PathProgramCache]: Analyzing trace with hash -202175989, now seen corresponding path program 3 times [2018-01-25 06:03:40,617 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:03:40,618 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:03:40,618 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-25 06:03:40,619 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:03:40,619 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:03:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:03:40,645 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:03:40,814 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-01-25 06:03:40,814 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:03:40,814 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 06:03:40,814 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-01-25 06:03:40,814 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-25 06:03:40,815 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:03:40,815 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-25 06:03:40,825 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-01-25 06:03:40,826 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-01-25 06:03:40,842 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-25 06:03:40,851 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-25 06:03:40,860 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-25 06:03:40,863 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-25 06:03:40,866 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-25 06:03:40,974 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-01-25 06:03:40,974 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-25 06:03:41,230 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 81 [2018-01-25 06:03:41,519 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-25 06:03:41,529 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-25 06:03:41,641 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-25 06:03:44,086 WARN L143 SmtUtils]: Spent 2372ms on a formula simplification that was a NOOP. DAG size: 50 [2018-01-25 06:03:44,092 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-25 06:03:46,284 WARN L143 SmtUtils]: Spent 2124ms on a formula simplification that was a NOOP. DAG size: 52 [2018-01-25 06:03:46,291 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-25 06:03:48,401 WARN L143 SmtUtils]: Spent 2034ms on a formula simplification that was a NOOP. DAG size: 52 [2018-01-25 06:03:48,407 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-25 06:03:48,429 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-01-25 06:03:48,449 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:03:48,449 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-25 06:03:48,452 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-01-25 06:03:48,452 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-01-25 06:03:48,472 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-25 06:03:48,487 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-25 06:03:48,528 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-25 06:03:48,555 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-25 06:03:48,560 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-25 06:03:48,688 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-01-25 06:03:48,688 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-25 06:03:49,335 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-01-25 06:03:49,337 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-25 06:03:49,337 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9, 9, 9] total 34 [2018-01-25 06:03:49,337 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-25 06:03:49,337 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-01-25 06:03:49,338 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-01-25 06:03:49,338 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=975, Unknown=0, NotChecked=0, Total=1122 [2018-01-25 06:03:49,338 INFO L87 Difference]: Start difference. First operand 178 states and 195 transitions. Second operand 16 states. [2018-01-25 06:03:49,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:03:49,586 INFO L93 Difference]: Finished difference Result 355 states and 396 transitions. [2018-01-25 06:03:49,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-25 06:03:49,586 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 53 [2018-01-25 06:03:49,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:03:49,588 INFO L225 Difference]: With dead ends: 355 [2018-01-25 06:03:49,588 INFO L226 Difference]: Without dead ends: 179 [2018-01-25 06:03:49,589 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 182 SyntacticMatches, 8 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=181, Invalid=1151, Unknown=0, NotChecked=0, Total=1332 [2018-01-25 06:03:49,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-01-25 06:03:49,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2018-01-25 06:03:49,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-01-25 06:03:49,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 196 transitions. [2018-01-25 06:03:49,604 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 196 transitions. Word has length 53 [2018-01-25 06:03:49,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:03:49,605 INFO L432 AbstractCegarLoop]: Abstraction has 179 states and 196 transitions. [2018-01-25 06:03:49,605 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-01-25 06:03:49,605 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 196 transitions. [2018-01-25 06:03:49,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-01-25 06:03:49,606 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:03:49,606 INFO L322 BasicCegarLoop]: trace histogram [12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:03:49,606 INFO L371 AbstractCegarLoop]: === Iteration 8 === [ldv_dev_set_drvdataErr0RequiresViolation, ldv_dev_set_drvdataErr1RequiresViolation, ldv_dev_get_drvdataErr1RequiresViolation, ldv_dev_get_drvdataErr0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr14RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr13RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr8RequiresViolation, entry_pointErr11RequiresViolation, entry_pointErr3RequiresViolation, entry_pointErr16RequiresViolation, entry_pointErr7RequiresViolation, entry_pointErr12RequiresViolation, entry_pointErr15RequiresViolation, entry_pointErr17RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr9RequiresViolation, entry_pointErr10RequiresViolation, ldv_arvo_init_arvo_device_structErr0RequiresViolation, ldv_arvo_init_arvo_device_structErr2RequiresViolation, ldv_arvo_init_arvo_device_structErr4RequiresViolation, ldv_arvo_init_arvo_device_structErr5RequiresViolation, ldv_arvo_init_arvo_device_structErr1RequiresViolation, ldv_arvo_init_arvo_device_structErr3RequiresViolation, lvd_arvo_remove_specialsErr4RequiresViolation, lvd_arvo_remove_specialsErr1RequiresViolation, lvd_arvo_remove_specialsErr0RequiresViolation, lvd_arvo_remove_specialsErr6RequiresViolation, lvd_arvo_remove_specialsErr7RequiresViolation, lvd_arvo_remove_specialsErr5RequiresViolation, lvd_arvo_remove_specialsErr2RequiresViolation, lvd_arvo_remove_specialsErr3RequiresViolation, ldv_arvo_init_specials_unsafeErr3RequiresViolation, ldv_arvo_init_specials_unsafeErr1RequiresViolation, ldv_arvo_init_specials_unsafeErr5RequiresViolation, ldv_arvo_init_specials_unsafeErr4RequiresViolation, ldv_arvo_init_specials_unsafeErr2RequiresViolation, ldv_arvo_init_specials_unsafeErr0RequiresViolation, ldv_arvo_init_specials_unsafeErr6RequiresViolation, ldv_arvo_init_specials_unsafeErr7RequiresViolation]=== [2018-01-25 06:03:49,606 INFO L82 PathProgramCache]: Analyzing trace with hash -734121745, now seen corresponding path program 4 times [2018-01-25 06:03:49,606 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:03:49,607 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:03:49,608 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-25 06:03:49,608 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:03:49,608 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:03:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:03:49,639 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:03:49,903 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 64 proven. 10 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-01-25 06:03:49,903 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:03:49,903 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 06:03:49,903 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-01-25 06:03:49,903 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-25 06:03:49,903 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:03:49,904 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-25 06:03:49,917 INFO L101 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-01-25 06:03:49,917 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-01-25 06:03:50,829 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-25 06:03:50,832 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-25 06:03:50,970 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 64 proven. 10 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-01-25 06:03:50,970 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-25 06:03:51,161 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 81 [2018-01-25 06:03:51,393 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-25 06:03:51,403 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-25 06:03:53,505 WARN L143 SmtUtils]: Spent 2032ms on a formula simplification that was a NOOP. DAG size: 49 [2018-01-25 06:03:53,509 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-25 06:03:53,634 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-25 06:03:53,767 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-25 06:03:54,098 WARN L143 SmtUtils]: Spent 262ms on a formula simplification that was a NOOP. DAG size: 52 [2018-01-25 06:03:54,103 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-25 06:03:56,199 WARN L143 SmtUtils]: Spent 2036ms on a formula simplification that was a NOOP. DAG size: 52 [2018-01-25 06:03:56,203 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-25 06:03:56,224 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 64 proven. 10 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-01-25 06:03:56,246 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:03:56,246 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-25 06:03:56,249 INFO L101 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-01-25 06:03:56,249 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-01-25 06:03:56,419 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-25 06:03:56,432 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-25 06:03:56,601 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 68 proven. 10 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-01-25 06:03:56,601 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-25 06:03:59,008 WARN L143 SmtUtils]: Spent 2028ms on a formula simplification that was a NOOP. DAG size: 42 [2018-01-25 06:03:59,660 WARN L143 SmtUtils]: Spent 568ms on a formula simplification that was a NOOP. DAG size: 45 [2018-01-25 06:04:00,038 WARN L143 SmtUtils]: Spent 322ms on a formula simplification that was a NOOP. DAG size: 46 [2018-01-25 06:04:00,180 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-01-25 06:04:00,182 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-25 06:04:00,182 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10, 10, 10] total 40 [2018-01-25 06:04:00,182 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-25 06:04:00,183 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-01-25 06:04:00,183 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-01-25 06:04:00,183 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1381, Unknown=0, NotChecked=0, Total=1560 [2018-01-25 06:04:00,184 INFO L87 Difference]: Start difference. First operand 179 states and 196 transitions. Second operand 18 states. [2018-01-25 06:04:00,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:04:00,506 INFO L93 Difference]: Finished difference Result 357 states and 398 transitions. [2018-01-25 06:04:00,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-25 06:04:00,507 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 56 [2018-01-25 06:04:00,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:04:00,508 INFO L225 Difference]: With dead ends: 357 [2018-01-25 06:04:00,508 INFO L226 Difference]: Without dead ends: 180 [2018-01-25 06:04:00,509 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 189 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=243, Invalid=1827, Unknown=0, NotChecked=0, Total=2070 [2018-01-25 06:04:00,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2018-01-25 06:04:00,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2018-01-25 06:04:00,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-01-25 06:04:00,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 197 transitions. [2018-01-25 06:04:00,519 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 197 transitions. Word has length 56 [2018-01-25 06:04:00,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:04:00,520 INFO L432 AbstractCegarLoop]: Abstraction has 180 states and 197 transitions. [2018-01-25 06:04:00,520 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-01-25 06:04:00,520 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 197 transitions. [2018-01-25 06:04:00,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-01-25 06:04:00,520 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:04:00,521 INFO L322 BasicCegarLoop]: trace histogram [15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:04:00,521 INFO L371 AbstractCegarLoop]: === Iteration 9 === [ldv_dev_set_drvdataErr0RequiresViolation, ldv_dev_set_drvdataErr1RequiresViolation, ldv_dev_get_drvdataErr1RequiresViolation, ldv_dev_get_drvdataErr0RequiresViolation, mainErr0EnsuresViolation, entry_pointErr5RequiresViolation, entry_pointErr14RequiresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation, entry_pointErr13RequiresViolation, entry_pointErr6RequiresViolation, entry_pointErr8RequiresViolation, entry_pointErr11RequiresViolation, entry_pointErr3RequiresViolation, entry_pointErr16RequiresViolation, entry_pointErr7RequiresViolation, entry_pointErr12RequiresViolation, entry_pointErr15RequiresViolation, entry_pointErr17RequiresViolation, entry_pointErr4RequiresViolation, entry_pointErr2RequiresViolation, entry_pointErr9RequiresViolation, entry_pointErr10RequiresViolation, ldv_arvo_init_arvo_device_structErr0RequiresViolation, ldv_arvo_init_arvo_device_structErr2RequiresViolation, ldv_arvo_init_arvo_device_structErr4RequiresViolation, ldv_arvo_init_arvo_device_structErr5RequiresViolation, ldv_arvo_init_arvo_device_structErr1RequiresViolation, ldv_arvo_init_arvo_device_structErr3RequiresViolation, lvd_arvo_remove_specialsErr4RequiresViolation, lvd_arvo_remove_specialsErr1RequiresViolation, lvd_arvo_remove_specialsErr0RequiresViolation, lvd_arvo_remove_specialsErr6RequiresViolation, lvd_arvo_remove_specialsErr7RequiresViolation, lvd_arvo_remove_specialsErr5RequiresViolation, lvd_arvo_remove_specialsErr2RequiresViolation, lvd_arvo_remove_specialsErr3RequiresViolation, ldv_arvo_init_specials_unsafeErr3RequiresViolation, ldv_arvo_init_specials_unsafeErr1RequiresViolation, ldv_arvo_init_specials_unsafeErr5RequiresViolation, ldv_arvo_init_specials_unsafeErr4RequiresViolation, ldv_arvo_init_specials_unsafeErr2RequiresViolation, ldv_arvo_init_specials_unsafeErr0RequiresViolation, ldv_arvo_init_specials_unsafeErr6RequiresViolation, ldv_arvo_init_specials_unsafeErr7RequiresViolation]=== [2018-01-25 06:04:00,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1514307467, now seen corresponding path program 5 times [2018-01-25 06:04:00,521 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:04:00,522 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:04:00,522 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-25 06:04:00,522 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:04:00,522 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:04:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:04:00,546 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:04:00,761 WARN L146 SmtUtils]: Spent 118ms on a formula simplification. DAG size of input: 39 DAG size of output 34 [2018-01-25 06:04:00,982 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 50 proven. 58 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-01-25 06:04:00,982 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:04:00,982 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 06:04:00,983 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-01-25 06:04:00,983 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-25 06:04:00,983 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:04:00,983 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-25 06:04:00,988 INFO L101 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-01-25 06:04:00,988 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder INSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-01-25 06:04:00,999 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-25 06:04:01,002 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-25 06:04:01,011 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-25 06:04:01,426 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command Received shutdown request... [2018-01-25 06:04:13,444 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-25 06:04:13,467 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-25 06:04:13,473 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-25 06:04:13,476 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-01-25 06:04:13,477 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-25 06:04:13,480 WARN L187 ceAbstractionStarter]: Timeout [2018-01-25 06:04:13,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.01 06:04:13 BoogieIcfgContainer [2018-01-25 06:04:13,480 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-25 06:04:13,481 INFO L168 Benchmark]: Toolchain (without parser) took 60532.37 ms. Allocated memory was 304.1 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 263.0 MB in the beginning and 546.5 MB in the end (delta: -283.5 MB). Peak memory consumption was 770.3 MB. Max. memory is 5.3 GB. [2018-01-25 06:04:13,481 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 304.1 MB. Free memory is still 270.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 06:04:13,481 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.45 ms. Allocated memory is still 304.1 MB. Free memory was 263.0 MB in the beginning and 248.0 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 5.3 GB. [2018-01-25 06:04:13,482 INFO L168 Benchmark]: Boogie Preprocessor took 47.77 ms. Allocated memory is still 304.1 MB. Free memory was 248.0 MB in the beginning and 246.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-25 06:04:13,482 INFO L168 Benchmark]: RCFGBuilder took 654.49 ms. Allocated memory is still 304.1 MB. Free memory was 246.0 MB in the beginning and 207.0 MB in the end (delta: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 5.3 GB. [2018-01-25 06:04:13,482 INFO L168 Benchmark]: TraceAbstraction took 59558.07 ms. Allocated memory was 304.1 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 206.0 MB in the beginning and 546.5 MB in the end (delta: -340.5 MB). Peak memory consumption was 713.3 MB. Max. memory is 5.3 GB. [2018-01-25 06:04:13,484 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 304.1 MB. Free memory is still 270.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 262.45 ms. Allocated memory is still 304.1 MB. Free memory was 263.0 MB in the beginning and 248.0 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 47.77 ms. Allocated memory is still 304.1 MB. Free memory was 248.0 MB in the beginning and 246.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 654.49 ms. Allocated memory is still 304.1 MB. Free memory was 246.0 MB in the beginning and 207.0 MB in the end (delta: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 59558.07 ms. Allocated memory was 304.1 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 206.0 MB in the beginning and 546.5 MB in the end (delta: -340.5 MB). Peak memory consumption was 713.3 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 24 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 150 LocStat_NO_SUPPORTING_DISEQUALITIES : 38 LocStat_NO_DISJUNCTIONS : -48 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 36 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 48 TransStat_NO_SUPPORTING_DISEQUALITIES : 7 TransStat_NO_DISJUNCTIONS : 38 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.425633 RENAME_VARIABLES(MILLISECONDS) : 0.109530 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.376516 PROJECTAWAY(MILLISECONDS) : 0.115709 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.216071 DISJOIN(MILLISECONDS) : 0.112721 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.135022 ADD_EQUALITY(MILLISECONDS) : 0.014150 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.020036 #CONJOIN_DISJUNCTIVE : 61 #RENAME_VARIABLES : 129 #UNFREEZE : 0 #CONJOIN : 118 #PROJECTAWAY : 115 #ADD_WEAK_EQUALITY : 3 #DISJOIN : 20 #RENAME_VARIABLES_DISJUNCTIVE : 127 #ADD_EQUALITY : 48 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 6 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 24 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 150 LocStat_NO_SUPPORTING_DISEQUALITIES : 36 LocStat_NO_DISJUNCTIONS : -48 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 36 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 50 TransStat_NO_SUPPORTING_DISEQUALITIES : 6 TransStat_NO_DISJUNCTIONS : 39 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.772590 RENAME_VARIABLES(MILLISECONDS) : 0.124331 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.303878 PROJECTAWAY(MILLISECONDS) : 0.061390 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.075306 DISJOIN(MILLISECONDS) : 0.201561 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.151927 ADD_EQUALITY(MILLISECONDS) : 0.023711 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.008240 #CONJOIN_DISJUNCTIVE : 61 #RENAME_VARIABLES : 130 #UNFREEZE : 0 #CONJOIN : 119 #PROJECTAWAY : 117 #ADD_WEAK_EQUALITY : 3 #DISJOIN : 21 #RENAME_VARIABLES_DISJUNCTIVE : 127 #ADD_EQUALITY : 50 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 5 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 24 LocStat_MAX_WEQGRAPH_SIZE : 3 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 165 LocStat_NO_SUPPORTING_DISEQUALITIES : 36 LocStat_NO_DISJUNCTIONS : -48 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 37 TransStat_MAX_WEQGRAPH_SIZE : 30 TransStat_MAX_SIZEOF_WEQEDGELABEL : 3 TransStat_NO_SUPPORTING_EQUALITIES : 78 TransStat_NO_SUPPORTING_DISEQUALITIES : 6 TransStat_NO_DISJUNCTIONS : 40 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.478750 RENAME_VARIABLES(MILLISECONDS) : 0.084456 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.200777 PROJECTAWAY(MILLISECONDS) : 0.041108 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.060042 DISJOIN(MILLISECONDS) : 0.623224 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.105618 ADD_EQUALITY(MILLISECONDS) : 0.015763 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.004696 #CONJOIN_DISJUNCTIVE : 115 #RENAME_VARIABLES : 268 #UNFREEZE : 0 #CONJOIN : 247 #PROJECTAWAY : 217 #ADD_WEAK_EQUALITY : 9 #DISJOIN : 30 #RENAME_VARIABLES_DISJUNCTIVE : 265 #ADD_EQUALITY : 81 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 5 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1198). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1198). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1193). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1193). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1533]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 1533). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1516). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1526). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1513). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1513). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1524). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1516). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1517). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1524). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1514). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1528). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1516). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1524). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1526). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1528). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1516). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1514). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1517). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1524). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1454). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1455). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1456). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1456). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1454). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1455). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1486). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1484). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1484). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1490). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1490). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1486). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1486). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1486). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1464). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1463). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1464). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1464). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1464). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 1463). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1479). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 1479). Cancelled while BasicCegarLoop was analyzing trace of length 60 with TraceHistMax 15, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 19 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 16 procedures, 165 locations, 45 error locations. TIMEOUT Result, 59.5s OverallTime, 9 OverallIterations, 15 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1248 SDtfs, 470 SDslu, 9383 SDs, 0 SdLazy, 1468 SolverSat, 127 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1168 GetRequests, 954 SyntacticMatches, 43 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1165 ImplicationChecksByTransitivity, 27.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 11.7s AbstIntTime, 3 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 30 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 30.2s InterpolantComputationTime, 893 NumberOfCodeBlocks, 885 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 1407 ConstructedInterpolants, 111 QuantifiedInterpolants, 392385 SizeOfPredicates, 32 NumberOfNonLiveVariables, 2578 ConjunctsInSsa, 157 ConjunctsInUnsatCore, 30 InterpolantComputations, 3 PerfectInterpolantSequences, 1561/1900 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test15_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-25_06-04-13-498.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test15_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-VPDomainBenchmark-0-2018-01-25_06-04-13-498.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test15_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-0-2018-01-25_06-04-13-498.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test15_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-VPDomainBenchmark-1-2018-01-25_06-04-13-498.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test15_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-1-2018-01-25_06-04-13-498.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test15_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-VPDomainBenchmark-2-2018-01-25_06-04-13-498.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test15_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-2-2018-01-25_06-04-13-498.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test15_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-25_06-04-13-498.csv Completed graceful shutdown