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_imprecise.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test15_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 17:18:31,745 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 17:18:31,747 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 17:18:31,759 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 17:18:31,760 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 17:18:31,760 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 17:18:31,761 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 17:18:31,762 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 17:18:31,764 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 17:18:31,765 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 17:18:31,765 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 17:18:31,766 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 17:18:31,766 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 17:18:31,767 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 17:18:31,768 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 17:18:31,770 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 17:18:31,773 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 17:18:31,775 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 17:18:31,776 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 17:18:31,777 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 17:18:31,780 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 17:18:31,780 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 17:18:31,780 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 17:18:31,781 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 17:18:31,782 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 17:18:31,783 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 17:18:31,784 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 17:18:31,785 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 17:18:31,785 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 17:18:31,785 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 17:18:31,786 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 17:18:31,786 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_imprecise.epf [2018-01-24 17:18:31,796 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 17:18:31,796 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 17:18:31,797 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 17:18:31,797 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 17:18:31,797 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 17:18:31,798 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-24 17:18:31,798 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 17:18:31,798 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 17:18:31,799 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 17:18:31,799 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 17:18:31,799 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 17:18:31,799 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 17:18:31,799 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 17:18:31,800 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 17:18:31,800 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 17:18:31,800 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 17:18:31,800 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 17:18:31,800 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 17:18:31,801 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 17:18:31,801 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 17:18:31,801 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 17:18:31,801 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 17:18:31,801 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 17:18:31,802 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 17:18:31,802 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 17:18:31,802 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 17:18:31,802 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 17:18:31,802 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 17:18:31,803 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 17:18:31,803 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 17:18:31,803 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 17:18:31,803 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 17:18:31,803 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 17:18:31,803 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 17:18:31,804 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 17:18:31,805 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 17:18:31,840 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 17:18:31,852 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 17:18:31,856 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 17:18:31,857 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 17:18:31,857 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 17:18:31,858 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test15_false-valid-memtrack.i [2018-01-24 17:18:32,058 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 17:18:32,065 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 17:18:32,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 17:18:32,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 17:18:32,073 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 17:18:32,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 05:18:32" (1/1) ... [2018-01-24 17:18:32,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c105265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:18:32, skipping insertion in model container [2018-01-24 17:18:32,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 05:18:32" (1/1) ... [2018-01-24 17:18:32,097 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 17:18:32,149 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 17:18:32,267 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 17:18:32,293 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 17:18:32,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:18:32 WrapperNode [2018-01-24 17:18:32,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 17:18:32,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 17:18:32,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 17:18:32,307 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 17:18:32,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:18:32" (1/1) ... [2018-01-24 17:18:32,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:18:32" (1/1) ... [2018-01-24 17:18:32,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:18:32" (1/1) ... [2018-01-24 17:18:32,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:18:32" (1/1) ... [2018-01-24 17:18:32,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:18:32" (1/1) ... [2018-01-24 17:18:32,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:18:32" (1/1) ... [2018-01-24 17:18:32,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:18:32" (1/1) ... [2018-01-24 17:18:32,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 17:18:32,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 17:18:32,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 17:18:32,351 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 17:18:32,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:18:32" (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 [2018-01-24 17:18:32,399 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 17:18:32,399 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 17:18:32,399 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2018-01-24 17:18:32,400 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2018-01-24 17:18:32,400 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2018-01-24 17:18:32,400 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2018-01-24 17:18:32,400 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_hid_get_drvdata [2018-01-24 17:18:32,400 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_hid_set_drvdata [2018-01-24 17:18:32,400 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_arvo_init_arvo_device_struct [2018-01-24 17:18:32,400 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_arvo_init_specials_unsafe [2018-01-24 17:18:32,400 INFO L136 BoogieDeclarations]: Found implementation of procedure lvd_arvo_remove_specials [2018-01-24 17:18:32,400 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_arvo_probe_unsafe [2018-01-24 17:18:32,400 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_arvo_remove [2018-01-24 17:18:32,401 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-24 17:18:32,401 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 17:18:32,401 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 17:18:32,401 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 17:18:32,401 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 17:18:32,401 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 17:18:32,402 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 17:18:32,402 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 17:18:32,402 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 17:18:32,402 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2018-01-24 17:18:32,402 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2018-01-24 17:18:32,403 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-01-24 17:18:32,403 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 17:18:32,403 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 17:18:32,403 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2018-01-24 17:18:32,403 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2018-01-24 17:18:32,403 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2018-01-24 17:18:32,404 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2018-01-24 17:18:32,404 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_hid_get_drvdata [2018-01-24 17:18:32,404 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_hid_set_drvdata [2018-01-24 17:18:32,404 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_arvo_init_arvo_device_struct [2018-01-24 17:18:32,404 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_arvo_init_specials_unsafe [2018-01-24 17:18:32,404 INFO L128 BoogieDeclarations]: Found specification of procedure lvd_arvo_remove_specials [2018-01-24 17:18:32,404 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_arvo_probe_unsafe [2018-01-24 17:18:32,405 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_arvo_remove [2018-01-24 17:18:32,405 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-24 17:18:32,405 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 17:18:32,405 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 17:18:32,405 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 17:18:32,904 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 17:18:32,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 05:18:32 BoogieIcfgContainer [2018-01-24 17:18:32,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 17:18:32,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 17:18:32,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 17:18:32,908 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 17:18:32,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 05:18:32" (1/3) ... [2018-01-24 17:18:32,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11639732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 05:18:32, skipping insertion in model container [2018-01-24 17:18:32,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:18:32" (2/3) ... [2018-01-24 17:18:32,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11639732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 05:18:32, skipping insertion in model container [2018-01-24 17:18:32,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 05:18:32" (3/3) ... [2018-01-24 17:18:32,911 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test15_false-valid-memtrack.i [2018-01-24 17:18:32,918 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 17:18:32,924 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 45 error locations. [2018-01-24 17:18:32,967 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 17:18:32,967 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 17:18:32,967 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 17:18:32,967 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 17:18:32,967 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 17:18:32,967 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 17:18:32,967 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 17:18:32,968 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 17:18:32,968 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 17:18:32,990 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-24 17:18:32,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-24 17:18:32,996 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:18:32,997 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] [2018-01-24 17:18:32,997 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]=== [2018-01-24 17:18:33,001 INFO L82 PathProgramCache]: Analyzing trace with hash 462743197, now seen corresponding path program 1 times [2018-01-24 17:18:33,003 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:18:33,051 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:18:33,051 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:18:33,051 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:18:33,051 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:18:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:18:33,113 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:18:33,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 17:18:33,311 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:18:33,311 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 17:18:33,311 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:18:33,314 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 17:18:33,324 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 17:18:33,325 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 17:18:33,327 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 6 states. [2018-01-24 17:18:33,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:18:33,407 INFO L93 Difference]: Finished difference Result 172 states and 184 transitions. [2018-01-24 17:18:33,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 17:18:33,409 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-01-24 17:18:33,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:18:33,423 INFO L225 Difference]: With dead ends: 172 [2018-01-24 17:18:33,423 INFO L226 Difference]: Without dead ends: 162 [2018-01-24 17:18:33,427 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 [2018-01-24 17:18:33,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-01-24 17:18:33,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2018-01-24 17:18:33,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2018-01-24 17:18:33,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 174 transitions. [2018-01-24 17:18:33,475 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 174 transitions. Word has length 22 [2018-01-24 17:18:33,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:18:33,477 INFO L432 AbstractCegarLoop]: Abstraction has 162 states and 174 transitions. [2018-01-24 17:18:33,477 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 17:18:33,477 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 174 transitions. [2018-01-24 17:18:33,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-01-24 17:18:33,479 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:18:33,479 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] [2018-01-24 17:18:33,479 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]=== [2018-01-24 17:18:33,479 INFO L82 PathProgramCache]: Analyzing trace with hash -844495449, now seen corresponding path program 1 times [2018-01-24 17:18:33,480 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:18:33,481 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:18:33,482 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:18:33,482 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:18:33,482 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:18:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:18:33,506 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:18:33,599 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-01-24 17:18:33,599 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:18:33,599 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 17:18:33,599 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:18:33,601 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 17:18:33,601 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 17:18:33,602 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 17:18:33,602 INFO L87 Difference]: Start difference. First operand 162 states and 174 transitions. Second operand 6 states. [2018-01-24 17:18:33,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:18:33,748 INFO L93 Difference]: Finished difference Result 169 states and 180 transitions. [2018-01-24 17:18:33,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 17:18:33,748 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2018-01-24 17:18:33,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:18:33,751 INFO L225 Difference]: With dead ends: 169 [2018-01-24 17:18:33,751 INFO L226 Difference]: Without dead ends: 162 [2018-01-24 17:18:33,752 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 [2018-01-24 17:18:33,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-01-24 17:18:33,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2018-01-24 17:18:33,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2018-01-24 17:18:33,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 173 transitions. [2018-01-24 17:18:33,770 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 173 transitions. Word has length 33 [2018-01-24 17:18:33,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:18:33,770 INFO L432 AbstractCegarLoop]: Abstraction has 162 states and 173 transitions. [2018-01-24 17:18:33,771 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 17:18:33,771 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 173 transitions. [2018-01-24 17:18:33,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-01-24 17:18:33,772 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:18:33,772 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] [2018-01-24 17:18:33,772 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]=== [2018-01-24 17:18:33,773 INFO L82 PathProgramCache]: Analyzing trace with hash 902320110, now seen corresponding path program 1 times [2018-01-24 17:18:33,773 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:18:33,774 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:18:33,774 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:18:33,775 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:18:33,775 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:18:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:18:33,813 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:18:34,004 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-01-24 17:18:34,005 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:18:34,005 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 17:18:34,006 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 45 with the following transitions: [2018-01-24 17:18:34,008 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] [2018-01-24 17:18:34,063 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 17:18:34,063 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 17:18:34,278 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 17:18:34,279 INFO L268 AbstractInterpreter]: Visited 26 different actions 44 times. Never merged. Never widened. Never found a fixpoint. Largest state had 18 variables. [2018-01-24 17:18:34,289 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-24 17:18:34,289 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:18:34,289 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 [2018-01-24 17:18:34,309 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:18:34,310 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 17:18:34,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:18:34,367 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 17:18:34,394 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 [2018-01-24 17:18:34,396 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 17:18:34,399 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 17:18:34,399 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-01-24 17:18:34,514 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 17:18:34,516 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 [2018-01-24 17:18:34,516 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 17:18:34,518 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. [2018-01-24 17:18:34,518 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-01-24 17:18:34,563 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 17:18:34,564 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 17:18:34,565 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 [2018-01-24 17:18:34,566 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 17:18:34,572 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. [2018-01-24 17:18:34,572 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2018-01-24 17:18:34,593 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-01-24 17:18:34,594 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 17:18:34,862 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-01-24 17:18:34,894 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:18:34,894 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 [2018-01-24 17:18:34,898 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:18:34,899 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 17:18:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:18:34,960 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 17:18:34,964 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 [2018-01-24 17:18:34,964 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 17:18:34,965 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 17:18:34,966 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-01-24 17:18:35,000 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 17:18:35,001 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 [2018-01-24 17:18:35,001 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 17:18:35,003 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. [2018-01-24 17:18:35,003 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-01-24 17:18:35,053 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 17:18:35,054 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 17:18:35,054 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 [2018-01-24 17:18:35,055 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 17:18:35,059 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. [2018-01-24 17:18:35,059 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2018-01-24 17:18:35,062 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-01-24 17:18:35,062 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 17:18:35,230 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-01-24 17:18:35,232 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-24 17:18:35,233 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 8, 9, 8] total 17 [2018-01-24 17:18:35,233 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-24 17:18:35,233 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-01-24 17:18:35,233 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-01-24 17:18:35,234 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2018-01-24 17:18:35,234 INFO L87 Difference]: Start difference. First operand 162 states and 173 transitions. Second operand 12 states. [2018-01-24 17:18:36,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:18:36,043 INFO L93 Difference]: Finished difference Result 210 states and 228 transitions. [2018-01-24 17:18:36,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-01-24 17:18:36,044 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 44 [2018-01-24 17:18:36,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:18:36,048 INFO L225 Difference]: With dead ends: 210 [2018-01-24 17:18:36,049 INFO L226 Difference]: Without dead ends: 205 [2018-01-24 17:18:36,049 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 155 SyntacticMatches, 13 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2018-01-24 17:18:36,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2018-01-24 17:18:36,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 175. [2018-01-24 17:18:36,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-01-24 17:18:36,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 192 transitions. [2018-01-24 17:18:36,069 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 192 transitions. Word has length 44 [2018-01-24 17:18:36,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:18:36,069 INFO L432 AbstractCegarLoop]: Abstraction has 175 states and 192 transitions. [2018-01-24 17:18:36,069 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-01-24 17:18:36,069 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 192 transitions. [2018-01-24 17:18:36,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-01-24 17:18:36,070 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:18:36,070 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] [2018-01-24 17:18:36,070 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]=== [2018-01-24 17:18:36,070 INFO L82 PathProgramCache]: Analyzing trace with hash 902320111, now seen corresponding path program 1 times [2018-01-24 17:18:36,071 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:18:36,072 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:18:36,072 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:18:36,072 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:18:36,072 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:18:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:18:36,097 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:18:36,385 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-01-24 17:18:36,385 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:18:36,385 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 17:18:36,385 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 45 with the following transitions: [2018-01-24 17:18:36,386 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] [2018-01-24 17:18:36,387 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 17:18:36,387 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 17:18:36,486 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 17:18:36,486 INFO L268 AbstractInterpreter]: Visited 26 different actions 44 times. Never merged. Never widened. Never found a fixpoint. Largest state had 18 variables. [2018-01-24 17:18:36,490 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-24 17:18:36,490 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:18:36,490 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 [2018-01-24 17:18:36,502 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:18:36,502 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 17:18:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:18:36,543 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 17:18:36,652 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-24 17:18:36,652 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 17:18:36,768 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-01-24 17:18:36,791 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-01-24 17:18:36,791 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 13 [2018-01-24 17:18:36,791 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:18:36,792 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 17:18:36,792 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 17:18:36,792 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-01-24 17:18:36,792 INFO L87 Difference]: Start difference. First operand 175 states and 192 transitions. Second operand 6 states. [2018-01-24 17:18:36,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:18:36,881 INFO L93 Difference]: Finished difference Result 349 states and 390 transitions. [2018-01-24 17:18:36,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 17:18:36,881 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2018-01-24 17:18:36,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:18:36,883 INFO L225 Difference]: With dead ends: 349 [2018-01-24 17:18:36,883 INFO L226 Difference]: Without dead ends: 176 [2018-01-24 17:18:36,884 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 [2018-01-24 17:18:36,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-01-24 17:18:36,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2018-01-24 17:18:36,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-01-24 17:18:36,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 193 transitions. [2018-01-24 17:18:36,900 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 193 transitions. Word has length 44 [2018-01-24 17:18:36,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:18:36,900 INFO L432 AbstractCegarLoop]: Abstraction has 176 states and 193 transitions. [2018-01-24 17:18:36,900 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 17:18:36,900 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 193 transitions. [2018-01-24 17:18:36,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-01-24 17:18:36,901 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:18:36,901 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] [2018-01-24 17:18:36,901 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]=== [2018-01-24 17:18:36,901 INFO L82 PathProgramCache]: Analyzing trace with hash -506792821, now seen corresponding path program 1 times [2018-01-24 17:18:36,901 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:18:36,902 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:18:36,903 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:18:36,903 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:18:36,903 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:18:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:18:36,929 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:18:37,105 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-01-24 17:18:37,105 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:18:37,106 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 17:18:37,106 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 48 with the following transitions: [2018-01-24 17:18:37,106 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] [2018-01-24 17:18:37,107 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 17:18:37,107 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 17:18:37,261 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 17:18:37,261 INFO L268 AbstractInterpreter]: Visited 27 different actions 59 times. Merged at 3 different actions 9 times. Never widened. Found 6 fixpoints after 2 different actions. Largest state had 24 variables. [2018-01-24 17:18:37,264 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-24 17:18:37,264 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:18:37,264 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 [2018-01-24 17:18:37,275 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:18:37,276 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 17:18:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:18:37,315 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 17:18:37,474 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-01-24 17:18:37,474 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 17:18:39,740 WARN L143 SmtUtils]: Spent 2028ms on a formula simplification that was a NOOP. DAG size: 38 [2018-01-24 17:18:39,857 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 11 proven. 12 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-01-24 17:18:39,878 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:18:39,878 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 [2018-01-24 17:18:39,881 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:18:39,882 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 17:18:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:18:39,944 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 17:18:39,960 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-01-24 17:18:39,960 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 17:18:40,183 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-01-24 17:18:40,185 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-24 17:18:40,185 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7, 7, 7] total 19 [2018-01-24 17:18:40,185 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-24 17:18:40,186 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-01-24 17:18:40,186 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-01-24 17:18:40,187 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2018-01-24 17:18:40,189 INFO L87 Difference]: Start difference. First operand 176 states and 193 transitions. Second operand 12 states. [2018-01-24 17:18:40,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:18:40,346 INFO L93 Difference]: Finished difference Result 351 states and 392 transitions. [2018-01-24 17:18:40,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 17:18:40,346 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 47 [2018-01-24 17:18:40,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:18:40,348 INFO L225 Difference]: With dead ends: 351 [2018-01-24 17:18:40,348 INFO L226 Difference]: Without dead ends: 177 [2018-01-24 17:18:40,350 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 170 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2018-01-24 17:18:40,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2018-01-24 17:18:40,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2018-01-24 17:18:40,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-01-24 17:18:40,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 194 transitions. [2018-01-24 17:18:40,369 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 194 transitions. Word has length 47 [2018-01-24 17:18:40,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:18:40,370 INFO L432 AbstractCegarLoop]: Abstraction has 177 states and 194 transitions. [2018-01-24 17:18:40,370 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-01-24 17:18:40,370 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 194 transitions. [2018-01-24 17:18:40,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-01-24 17:18:40,371 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:18:40,372 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] [2018-01-24 17:18:40,372 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]=== [2018-01-24 17:18:40,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1284083601, now seen corresponding path program 2 times [2018-01-24 17:18:40,372 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:18:40,373 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:18:40,373 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:18:40,374 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:18:40,374 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:18:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:18:40,404 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:18:40,621 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-01-24 17:18:40,621 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:18:40,662 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 17:18:40,663 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-01-24 17:18:40,663 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-24 17:18:40,663 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:18:40,663 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 [2018-01-24 17:18:40,670 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-24 17:18:40,670 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-01-24 17:18:40,687 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 17:18:40,699 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 17:18:40,703 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-24 17:18:40,706 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 17:18:40,798 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-01-24 17:18:40,799 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 17:18:43,137 WARN L143 SmtUtils]: Spent 2044ms on a formula simplification that was a NOOP. DAG size: 39 [2018-01-24 17:18:45,026 WARN L143 SmtUtils]: Spent 1839ms on a formula simplification that was a NOOP. DAG size: 40 [2018-01-24 17:18:47,083 WARN L143 SmtUtils]: Spent 2024ms on a formula simplification that was a NOOP. DAG size: 42 [2018-01-24 17:18:47,101 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-01-24 17:18:47,121 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:18:47,121 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 [2018-01-24 17:18:47,124 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-24 17:18:47,124 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-01-24 17:18:47,143 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 17:18:47,166 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 17:18:47,194 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-24 17:18:47,199 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 17:18:47,304 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-01-24 17:18:47,305 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 17:18:47,908 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-01-24 17:18:47,910 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-24 17:18:47,910 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8, 8, 8] total 29 [2018-01-24 17:18:47,910 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-24 17:18:47,910 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-01-24 17:18:47,911 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-01-24 17:18:47,911 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=691, Unknown=0, NotChecked=0, Total=812 [2018-01-24 17:18:47,911 INFO L87 Difference]: Start difference. First operand 177 states and 194 transitions. Second operand 14 states. [2018-01-24 17:18:48,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:18:48,122 INFO L93 Difference]: Finished difference Result 353 states and 394 transitions. [2018-01-24 17:18:48,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 17:18:48,122 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 50 [2018-01-24 17:18:48,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:18:48,124 INFO L225 Difference]: With dead ends: 353 [2018-01-24 17:18:48,124 INFO L226 Difference]: Without dead ends: 178 [2018-01-24 17:18:48,126 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 174 SyntacticMatches, 6 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=161, Invalid=895, Unknown=0, NotChecked=0, Total=1056 [2018-01-24 17:18:48,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-01-24 17:18:48,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2018-01-24 17:18:48,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-01-24 17:18:48,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 195 transitions. [2018-01-24 17:18:48,141 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 195 transitions. Word has length 50 [2018-01-24 17:18:48,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:18:48,141 INFO L432 AbstractCegarLoop]: Abstraction has 178 states and 195 transitions. [2018-01-24 17:18:48,141 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-01-24 17:18:48,141 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 195 transitions. [2018-01-24 17:18:48,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-01-24 17:18:48,142 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:18:48,142 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] [2018-01-24 17:18:48,142 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]=== [2018-01-24 17:18:48,143 INFO L82 PathProgramCache]: Analyzing trace with hash -202175989, now seen corresponding path program 3 times [2018-01-24 17:18:48,143 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:18:48,144 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:18:48,144 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-24 17:18:48,144 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:18:48,144 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:18:48,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:18:48,169 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:18:48,422 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-01-24 17:18:48,422 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:18:48,422 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 17:18:48,422 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-01-24 17:18:48,422 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-24 17:18:48,422 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:18:48,422 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 [2018-01-24 17:18:48,427 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-01-24 17:18:48,427 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-01-24 17:18:48,440 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-24 17:18:48,446 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-24 17:18:48,454 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-24 17:18:48,457 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-24 17:18:48,459 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 17:18:48,553 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-01-24 17:18:48,554 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 17:18:48,742 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 81 [2018-01-24 17:18:49,019 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-24 17:18:49,027 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-24 17:18:49,097 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-24 17:18:49,224 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-24 17:18:49,360 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-24 17:18:52,280 WARN L143 SmtUtils]: Spent 2837ms on a formula simplification that was a NOOP. DAG size: 52 [2018-01-24 17:18:52,287 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-01-24 17:18:52,320 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-01-24 17:18:52,342 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:18:52,342 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 [2018-01-24 17:18:52,345 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-01-24 17:18:52,345 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-01-24 17:18:52,365 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-24 17:18:52,380 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-24 17:18:52,422 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-24 17:18:52,449 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-24 17:18:52,455 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 17:18:52,641 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-01-24 17:18:52,642 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 17:18:54,962 WARN L143 SmtUtils]: Spent 2025ms on a formula simplification that was a NOOP. DAG size: 40 [2018-01-24 17:18:55,280 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-01-24 17:18:55,282 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-24 17:18:55,282 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9, 9, 9] total 34 [2018-01-24 17:18:55,282 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-24 17:18:55,283 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-01-24 17:18:55,283 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-01-24 17:18:55,283 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=975, Unknown=0, NotChecked=0, Total=1122 [2018-01-24 17:18:55,284 INFO L87 Difference]: Start difference. First operand 178 states and 195 transitions. Second operand 16 states. [2018-01-24 17:18:55,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:18:55,543 INFO L93 Difference]: Finished difference Result 355 states and 396 transitions. [2018-01-24 17:18:55,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-24 17:18:55,544 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 53 [2018-01-24 17:18:55,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:18:55,545 INFO L225 Difference]: With dead ends: 355 [2018-01-24 17:18:55,545 INFO L226 Difference]: Without dead ends: 179 [2018-01-24 17:18:55,546 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 182 SyntacticMatches, 8 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=181, Invalid=1151, Unknown=0, NotChecked=0, Total=1332 [2018-01-24 17:18:55,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-01-24 17:18:55,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2018-01-24 17:18:55,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-01-24 17:18:55,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 196 transitions. [2018-01-24 17:18:55,558 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 196 transitions. Word has length 53 [2018-01-24 17:18:55,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:18:55,559 INFO L432 AbstractCegarLoop]: Abstraction has 179 states and 196 transitions. [2018-01-24 17:18:55,559 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-01-24 17:18:55,559 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 196 transitions. [2018-01-24 17:18:55,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-01-24 17:18:55,560 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:18:55,560 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] [2018-01-24 17:18:55,560 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]=== [2018-01-24 17:18:55,560 INFO L82 PathProgramCache]: Analyzing trace with hash -734121745, now seen corresponding path program 4 times [2018-01-24 17:18:55,561 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:18:55,561 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:18:55,562 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-24 17:18:55,562 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:18:55,562 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:18:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:18:55,593 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:18:55,772 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 64 proven. 10 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-01-24 17:18:55,772 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:18:55,772 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 17:18:55,772 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-01-24 17:18:55,772 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-24 17:18:55,772 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:18:55,772 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 [2018-01-24 17:18:55,780 INFO L101 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-01-24 17:18:55,780 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-01-24 17:18:56,663 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-24 17:18:56,667 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 17:18:56,801 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 64 proven. 10 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-01-24 17:18:56,801 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 17:18:59,152 WARN L143 SmtUtils]: Spent 2024ms on a formula simplification that was a NOOP. DAG size: 40 [2018-01-24 17:19:01,283 WARN L143 SmtUtils]: Spent 2037ms on a formula simplification that was a NOOP. DAG size: 42 [2018-01-24 17:19:03,553 WARN L143 SmtUtils]: Spent 2227ms on a formula simplification that was a NOOP. DAG size: 42 [2018-01-24 17:19:03,570 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 64 proven. 10 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-01-24 17:19:03,591 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:19:03,591 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 [2018-01-24 17:19:03,595 INFO L101 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-01-24 17:19:03,595 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-01-24 17:19:03,767 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-24 17:19:03,780 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 17:19:03,927 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 68 proven. 10 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-01-24 17:19:03,927 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 17:19:06,655 WARN L143 SmtUtils]: Spent 2256ms on a formula simplification that was a NOOP. DAG size: 45 [2018-01-24 17:19:08,947 WARN L146 SmtUtils]: Spent 2088ms on a formula simplification. DAG size of input: 46 DAG size of output 45 [2018-01-24 17:19:08,959 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-01-24 17:19:08,961 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-24 17:19:08,961 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10, 10, 10] total 40 [2018-01-24 17:19:08,961 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-24 17:19:08,962 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-01-24 17:19:08,962 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-01-24 17:19:08,963 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1381, Unknown=0, NotChecked=0, Total=1560 [2018-01-24 17:19:08,963 INFO L87 Difference]: Start difference. First operand 179 states and 196 transitions. Second operand 18 states. [2018-01-24 17:19:09,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:19:09,276 INFO L93 Difference]: Finished difference Result 357 states and 398 transitions. [2018-01-24 17:19:09,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 17:19:09,276 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 56 [2018-01-24 17:19:09,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:19:09,277 INFO L225 Difference]: With dead ends: 357 [2018-01-24 17:19:09,278 INFO L226 Difference]: Without dead ends: 180 [2018-01-24 17:19:09,279 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 189 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=243, Invalid=1827, Unknown=0, NotChecked=0, Total=2070 [2018-01-24 17:19:09,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2018-01-24 17:19:09,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2018-01-24 17:19:09,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-01-24 17:19:09,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 197 transitions. [2018-01-24 17:19:09,291 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 197 transitions. Word has length 56 [2018-01-24 17:19:09,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:19:09,291 INFO L432 AbstractCegarLoop]: Abstraction has 180 states and 197 transitions. [2018-01-24 17:19:09,291 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-01-24 17:19:09,291 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 197 transitions. [2018-01-24 17:19:09,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-01-24 17:19:09,292 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:19:09,292 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] [2018-01-24 17:19:09,292 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]=== [2018-01-24 17:19:09,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1514307467, now seen corresponding path program 5 times [2018-01-24 17:19:09,292 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:19:09,293 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:19:09,293 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-24 17:19:09,293 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:19:09,294 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:19:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:19:09,328 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:19:09,830 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 50 proven. 58 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-01-24 17:19:09,831 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:19:09,831 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 17:19:09,831 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-01-24 17:19:09,831 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-24 17:19:09,831 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:19:09,831 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 [2018-01-24 17:19:09,836 INFO L101 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-01-24 17:19:09,836 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder INSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-01-24 17:19:09,846 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 17:19:09,848 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 17:19:09,855 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 17:19:10,279 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 17:19:22,300 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 17:19:22,324 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-24 17:19:22,331 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 17:19:22,519 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 133 proven. 15 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-01-24 17:19:22,519 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 17:19:24,900 WARN L143 SmtUtils]: Spent 2026ms on a formula simplification that was a NOOP. DAG size: 41 [2018-01-24 17:19:26,984 WARN L143 SmtUtils]: Spent 2029ms on a formula simplification that was a NOOP. DAG size: 42 [2018-01-24 17:19:29,067 WARN L143 SmtUtils]: Spent 2030ms on a formula simplification that was a NOOP. DAG size: 44 [2018-01-24 17:19:31,233 WARN L143 SmtUtils]: Spent 2028ms on a formula simplification that was a NOOP. DAG size: 45 [2018-01-24 17:19:31,251 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 43 proven. 58 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-01-24 17:19:31,274 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:19:31,274 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 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 14 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-24 17:19:31,277 INFO L101 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-01-24 17:19:31,277 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder INSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-01-24 17:19:31,289 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 17:19:31,293 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 17:19:31,306 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 17:19:31,357 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 17:19:31,549 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 17:19:31,598 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-24 17:19:31,605 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 17:19:31,846 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 133 proven. 15 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-01-24 17:19:31,847 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 17:19:34,163 WARN L143 SmtUtils]: Spent 1901ms on a formula simplification that was a NOOP. DAG size: 42 [2018-01-24 17:19:36,259 WARN L143 SmtUtils]: Spent 2029ms on a formula simplification that was a NOOP. DAG size: 45 [2018-01-24 17:19:38,357 WARN L143 SmtUtils]: Spent 2031ms on a formula simplification that was a NOOP. DAG size: 47 Received shutdown request... [2018-01-24 17:19:40,501 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-01-24 17:19:40,501 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-24 17:19:40,505 WARN L187 ceAbstractionStarter]: Timeout [2018-01-24 17:19:40,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 05:19:40 BoogieIcfgContainer [2018-01-24 17:19:40,506 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 17:19:40,507 INFO L168 Benchmark]: Toolchain (without parser) took 68448.06 ms. Allocated memory was 303.6 MB in the beginning and 590.3 MB in the end (delta: 286.8 MB). Free memory was 262.6 MB in the beginning and 408.2 MB in the end (delta: -145.6 MB). Peak memory consumption was 141.2 MB. Max. memory is 5.3 GB. [2018-01-24 17:19:40,507 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 303.6 MB. Free memory is still 269.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 17:19:40,508 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.95 ms. Allocated memory is still 303.6 MB. Free memory was 262.6 MB in the beginning and 247.7 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 5.3 GB. [2018-01-24 17:19:40,508 INFO L168 Benchmark]: Boogie Preprocessor took 43.87 ms. Allocated memory is still 303.6 MB. Free memory was 247.7 MB in the beginning and 245.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 17:19:40,508 INFO L168 Benchmark]: RCFGBuilder took 553.98 ms. Allocated memory is still 303.6 MB. Free memory was 245.7 MB in the beginning and 206.9 MB in the end (delta: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 5.3 GB. [2018-01-24 17:19:40,509 INFO L168 Benchmark]: TraceAbstraction took 67599.62 ms. Allocated memory was 303.6 MB in the beginning and 590.3 MB in the end (delta: 286.8 MB). Free memory was 205.9 MB in the beginning and 408.2 MB in the end (delta: -202.3 MB). Peak memory consumption was 84.5 MB. Max. memory is 5.3 GB. [2018-01-24 17:19:40,510 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 303.6 MB. Free memory is still 269.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 240.95 ms. Allocated memory is still 303.6 MB. Free memory was 262.6 MB in the beginning and 247.7 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 43.87 ms. Allocated memory is still 303.6 MB. Free memory was 247.7 MB in the beginning and 245.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 553.98 ms. Allocated memory is still 303.6 MB. Free memory was 245.7 MB in the beginning and 206.9 MB in the end (delta: 38.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 67599.62 ms. Allocated memory was 303.6 MB in the beginning and 590.3 MB in the end (delta: 286.8 MB). Free memory was 205.9 MB in the beginning and 408.2 MB in the end (delta: -202.3 MB). Peak memory consumption was 84.5 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 : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 132 LocStat_NO_SUPPORTING_DISEQUALITIES : 38 LocStat_NO_DISJUNCTIONS : -48 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 36 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 48 TransStat_NO_SUPPORTING_DISEQUALITIES : 7 TransStat_NO_DISJUNCTIONS : 38 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.699073 RENAME_VARIABLES(MILLISECONDS) : 0.234230 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.637303 PROJECTAWAY(MILLISECONDS) : 0.119943 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001057 DISJOIN(MILLISECONDS) : 0.359521 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.278741 ADD_EQUALITY(MILLISECONDS) : 0.030707 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.043528 #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 : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 132 LocStat_NO_SUPPORTING_DISEQUALITIES : 36 LocStat_NO_DISJUNCTIONS : -48 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 36 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 50 TransStat_NO_SUPPORTING_DISEQUALITIES : 6 TransStat_NO_DISJUNCTIONS : 39 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.551569 RENAME_VARIABLES(MILLISECONDS) : 0.204871 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.204808 PROJECTAWAY(MILLISECONDS) : 0.063563 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.000856 DISJOIN(MILLISECONDS) : 0.257625 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.243198 ADD_EQUALITY(MILLISECONDS) : 0.027836 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.009465 #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 : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 147 LocStat_NO_SUPPORTING_DISEQUALITIES : 36 LocStat_NO_DISJUNCTIONS : -48 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 37 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 78 TransStat_NO_SUPPORTING_DISEQUALITIES : 6 TransStat_NO_DISJUNCTIONS : 40 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.478669 RENAME_VARIABLES(MILLISECONDS) : 0.150158 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.201082 PROJECTAWAY(MILLISECONDS) : 0.048878 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001158 DISJOIN(MILLISECONDS) : 0.373077 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.178843 ADD_EQUALITY(MILLISECONDS) : 0.024929 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.012172 #CONJOIN_DISJUNCTIVE : 79 #RENAME_VARIABLES : 169 #UNFREEZE : 0 #CONJOIN : 175 #PROJECTAWAY : 145 #ADD_WEAK_EQUALITY : 9 #DISJOIN : 21 #RENAME_VARIABLES_DISJUNCTIVE : 166 #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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - 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 backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 46. - StatisticsResult: Ultimate Automizer benchmark data CFG has 16 procedures, 165 locations, 45 error locations. TIMEOUT Result, 67.5s 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, 29.1s 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, 0.5s 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, 31.2s InterpolantComputationTime, 893 NumberOfCodeBlocks, 885 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 1407 ConstructedInterpolants, 107 QuantifiedInterpolants, 382109 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_imprecise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_17-19-40-521.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_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-0-2018-01-24_17-19-40-521.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_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_17-19-40-521.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_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-1-2018-01-24_17-19-40-521.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_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-1-2018-01-24_17-19-40-521.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_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-2-2018-01-24_17-19-40-521.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_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-2-2018-01-24_17-19-40-521.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_imprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_17-19-40-521.csv Completed graceful shutdown