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_Fixed_noBitfields+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/ldv-memsafety-bitfields/test-bitfields-2.1_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cf7e2d-m [2018-03-29 21:32:09,059 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-29 21:32:09,061 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-29 21:32:09,076 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-29 21:32:09,077 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-29 21:32:09,078 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-29 21:32:09,079 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-29 21:32:09,081 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-29 21:32:09,083 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-29 21:32:09,083 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-29 21:32:09,084 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-29 21:32:09,085 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-29 21:32:09,086 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-29 21:32:09,087 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-29 21:32:09,088 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-29 21:32:09,090 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-29 21:32:09,092 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-29 21:32:09,094 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-29 21:32:09,095 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-29 21:32:09,096 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-29 21:32:09,099 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-29 21:32:09,099 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-29 21:32:09,099 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-29 21:32:09,100 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-29 21:32:09,101 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-29 21:32:09,103 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-29 21:32:09,103 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-29 21:32:09,103 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-29 21:32:09,104 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-29 21:32:09,104 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-29 21:32:09,105 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-29 21:32:09,105 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-03-29 21:32:09,131 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-29 21:32:09,131 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-29 21:32:09,132 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-03-29 21:32:09,132 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-03-29 21:32:09,133 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-29 21:32:09,133 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-29 21:32:09,133 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-29 21:32:09,133 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-29 21:32:09,134 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-29 21:32:09,134 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-03-29 21:32:09,134 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-03-29 21:32:09,134 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-29 21:32:09,135 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-29 21:32:09,135 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-29 21:32:09,135 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-29 21:32:09,135 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-29 21:32:09,135 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-29 21:32:09,136 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-29 21:32:09,136 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-29 21:32:09,136 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-29 21:32:09,136 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-29 21:32:09,136 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-29 21:32:09,136 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-29 21:32:09,137 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-29 21:32:09,137 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-29 21:32:09,137 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-29 21:32:09,137 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-29 21:32:09,137 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-29 21:32:09,138 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-29 21:32:09,138 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-29 21:32:09,138 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-29 21:32:09,138 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:32:09,138 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-29 21:32:09,139 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-29 21:32:09,139 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-29 21:32:09,140 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-03-29 21:32:09,140 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-03-29 21:32:09,175 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-29 21:32:09,187 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-29 21:32:09,191 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-29 21:32:09,193 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-29 21:32:09,193 INFO L276 PluginConnector]: CDTParser initialized [2018-03-29 21:32:09,194 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety-bitfields/test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-03-29 21:32:09,525 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGb5b1bf742 [2018-03-29 21:32:09,659 INFO L287 CDTParser]: IsIndexed: true [2018-03-29 21:32:09,659 INFO L288 CDTParser]: Found 1 translation units. [2018-03-29 21:32:09,660 INFO L168 CDTParser]: Scanning test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-03-29 21:32:09,661 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-29 21:32:09,662 INFO L215 ultiparseSymbolTable]: [2018-03-29 21:32:09,662 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-29 21:32:09,662 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-03-29 21:32:09,662 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-29 21:32:09,662 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest_bitfields_____true_valid_memsafety_true_termination_i__size_t in test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-03-29 21:32:09,662 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest_bitfields_____true_valid_memsafety_true_termination_i__d in test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-03-29 21:32:09,678 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGb5b1bf742 [2018-03-29 21:32:09,682 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-29 21:32:09,686 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-29 21:32:09,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-29 21:32:09,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-29 21:32:09,694 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-29 21:32:09,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 09:32:09" (1/1) ... [2018-03-29 21:32:09,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ea86514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:32:09, skipping insertion in model container [2018-03-29 21:32:09,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 09:32:09" (1/1) ... [2018-03-29 21:32:09,712 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 21:32:09,725 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 21:32:09,870 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 21:32:09,897 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 21:32:09,905 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 12 non ball SCCs. Number of states in SCCs 12. [2018-03-29 21:32:09,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:32:09 WrapperNode [2018-03-29 21:32:09,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-29 21:32:09,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-29 21:32:09,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-29 21:32:09,920 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-29 21:32:09,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:32:09" (1/1) ... [2018-03-29 21:32:09,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:32:09" (1/1) ... [2018-03-29 21:32:09,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:32:09" (1/1) ... [2018-03-29 21:32:09,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:32:09" (1/1) ... [2018-03-29 21:32:09,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:32:09" (1/1) ... [2018-03-29 21:32:09,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:32:09" (1/1) ... [2018-03-29 21:32:09,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:32:09" (1/1) ... [2018-03-29 21:32:09,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-29 21:32:09,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-29 21:32:09,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-29 21:32:09,962 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-29 21:32:09,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:32:09" (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 [2018-03-29 21:32:10,025 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-29 21:32:10,026 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-29 21:32:10,026 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-29 21:32:10,026 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2018-03-29 21:32:10,026 INFO L128 BoogieDeclarations]: Found specification of procedure memcpy [2018-03-29 21:32:10,027 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-03-29 21:32:10,027 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-03-29 21:32:10,027 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-29 21:32:10,027 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-29 21:32:10,027 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2018-03-29 21:32:10,027 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-29 21:32:10,028 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-29 21:32:10,028 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-29 21:32:10,028 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-29 21:32:10,028 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-29 21:32:10,028 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-29 21:32:10,402 WARN L446 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-03-29 21:32:10,439 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-29 21:32:10,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 09:32:10 BoogieIcfgContainer [2018-03-29 21:32:10,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-29 21:32:10,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-29 21:32:10,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-29 21:32:10,443 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-29 21:32:10,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.03 09:32:09" (1/3) ... [2018-03-29 21:32:10,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea83045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 09:32:10, skipping insertion in model container [2018-03-29 21:32:10,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 09:32:09" (2/3) ... [2018-03-29 21:32:10,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea83045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 09:32:10, skipping insertion in model container [2018-03-29 21:32:10,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 09:32:10" (3/3) ... [2018-03-29 21:32:10,446 INFO L107 eAbstractionObserver]: Analyzing ICFG test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-03-29 21:32:10,455 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-29 21:32:10,462 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 33 error locations. [2018-03-29 21:32:10,500 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-29 21:32:10,501 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-29 21:32:10,501 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-29 21:32:10,501 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-29 21:32:10,501 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-29 21:32:10,501 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-29 21:32:10,502 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-29 21:32:10,502 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-29 21:32:10,502 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-29 21:32:10,503 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-29 21:32:10,519 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2018-03-29 21:32:10,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-03-29 21:32:10,523 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:32:10,523 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:32:10,524 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr25AssertViolationMEMORY_FREE, mainErr21AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr20AssertViolationMEMORY_FREE, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-03-29 21:32:10,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1400545360, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:32:10,539 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:32:10,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:32:10,586 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:32:10,628 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 [2018-03-29 21:32:10,630 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:32:10,647 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:32:10,647 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-29 21:32:10,672 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-03-29 21:32:10,672 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:32:10,685 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. [2018-03-29 21:32:10,686 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-03-29 21:32:10,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:32:10,696 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:32:10,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:32:10,764 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 21:32:10,764 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-03-29 21:32:10,767 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-03-29 21:32:10,780 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-03-29 21:32:10,781 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-29 21:32:10,783 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 3 states. [2018-03-29 21:32:10,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:32:10,906 INFO L93 Difference]: Finished difference Result 138 states and 145 transitions. [2018-03-29 21:32:10,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-29 21:32:10,908 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-03-29 21:32:10,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:32:10,922 INFO L225 Difference]: With dead ends: 138 [2018-03-29 21:32:10,922 INFO L226 Difference]: Without dead ends: 129 [2018-03-29 21:32:10,926 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-29 21:32:10,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-03-29 21:32:10,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 91. [2018-03-29 21:32:10,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-03-29 21:32:10,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions. [2018-03-29 21:32:10,964 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 16 [2018-03-29 21:32:10,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:32:10,964 INFO L459 AbstractCegarLoop]: Abstraction has 91 states and 95 transitions. [2018-03-29 21:32:10,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-03-29 21:32:10,964 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions. [2018-03-29 21:32:10,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-03-29 21:32:10,965 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:32:10,965 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:32:10,965 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr25AssertViolationMEMORY_FREE, mainErr21AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr20AssertViolationMEMORY_FREE, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-03-29 21:32:10,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1400545359, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:32:10,975 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:32:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:32:10,999 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:32:11,006 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 [2018-03-29 21:32:11,006 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:32:11,019 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 [2018-03-29 21:32:11,019 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:32:11,027 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:32:11,028 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-03-29 21:32:11,049 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:11,051 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:11,052 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-03-29 21:32:11,053 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:32:11,081 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:11,083 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:11,084 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 11 treesize of output 4 [2018-03-29 21:32:11,085 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:32:11,098 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-29 21:32:11,098 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:14 [2018-03-29 21:32:11,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:32:11,132 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:32:11,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:32:11,307 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 21:32:11,307 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2018-03-29 21:32:11,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-03-29 21:32:11,309 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-03-29 21:32:11,309 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-03-29 21:32:11,309 INFO L87 Difference]: Start difference. First operand 91 states and 95 transitions. Second operand 6 states. [2018-03-29 21:32:11,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:32:11,505 INFO L93 Difference]: Finished difference Result 129 states and 136 transitions. [2018-03-29 21:32:11,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-29 21:32:11,506 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-03-29 21:32:11,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:32:11,508 INFO L225 Difference]: With dead ends: 129 [2018-03-29 21:32:11,508 INFO L226 Difference]: Without dead ends: 123 [2018-03-29 21:32:11,510 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-03-29 21:32:11,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-03-29 21:32:11,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 85. [2018-03-29 21:32:11,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-03-29 21:32:11,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2018-03-29 21:32:11,517 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 16 [2018-03-29 21:32:11,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:32:11,518 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2018-03-29 21:32:11,518 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-03-29 21:32:11,518 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2018-03-29 21:32:11,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-03-29 21:32:11,519 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:32:11,519 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:32:11,519 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr25AssertViolationMEMORY_FREE, mainErr21AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr20AssertViolationMEMORY_FREE, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-03-29 21:32:11,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1499093492, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:32:11,527 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:32:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:32:11,554 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:32:11,559 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 [2018-03-29 21:32:11,559 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:32:11,563 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:32:11,563 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-29 21:32:11,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:32:11,576 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:32:11,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:32:11,639 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 21:32:11,640 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2018-03-29 21:32:11,640 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-03-29 21:32:11,640 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-03-29 21:32:11,640 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-03-29 21:32:11,641 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand 6 states. [2018-03-29 21:32:11,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:32:11,715 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2018-03-29 21:32:11,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-29 21:32:11,716 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-03-29 21:32:11,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:32:11,717 INFO L225 Difference]: With dead ends: 85 [2018-03-29 21:32:11,717 INFO L226 Difference]: Without dead ends: 63 [2018-03-29 21:32:11,718 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-03-29 21:32:11,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-03-29 21:32:11,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-03-29 21:32:11,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-03-29 21:32:11,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2018-03-29 21:32:11,723 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 21 [2018-03-29 21:32:11,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:32:11,723 INFO L459 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2018-03-29 21:32:11,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-03-29 21:32:11,723 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2018-03-29 21:32:11,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-03-29 21:32:11,724 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:32:11,724 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:32:11,724 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr25AssertViolationMEMORY_FREE, mainErr21AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr20AssertViolationMEMORY_FREE, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-03-29 21:32:11,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1499093494, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:32:11,733 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:32:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:32:11,749 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:32:11,753 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 [2018-03-29 21:32:11,753 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:32:11,754 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:32:11,754 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-29 21:32:11,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:32:11,760 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:32:11,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:32:11,793 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 21:32:11,793 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-29 21:32:11,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-29 21:32:11,794 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-29 21:32:11,794 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-29 21:32:11,794 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand 4 states. [2018-03-29 21:32:11,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:32:11,860 INFO L93 Difference]: Finished difference Result 85 states and 92 transitions. [2018-03-29 21:32:11,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-29 21:32:11,860 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-03-29 21:32:11,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:32:11,861 INFO L225 Difference]: With dead ends: 85 [2018-03-29 21:32:11,861 INFO L226 Difference]: Without dead ends: 77 [2018-03-29 21:32:11,861 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-29 21:32:11,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-03-29 21:32:11,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 61. [2018-03-29 21:32:11,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-03-29 21:32:11,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2018-03-29 21:32:11,867 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 21 [2018-03-29 21:32:11,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:32:11,867 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2018-03-29 21:32:11,867 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-29 21:32:11,867 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2018-03-29 21:32:11,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-03-29 21:32:11,868 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:32:11,868 INFO L355 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:32:11,868 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr25AssertViolationMEMORY_FREE, mainErr21AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr20AssertViolationMEMORY_FREE, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-03-29 21:32:11,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1960195650, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:32:11,875 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:32:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:32:11,901 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:32:11,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:32:11,914 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:32:11,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:32:11,983 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 21:32:11,984 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-03-29 21:32:11,984 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-03-29 21:32:11,984 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-03-29 21:32:11,984 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-03-29 21:32:11,985 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand 6 states. [2018-03-29 21:32:12,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:32:12,012 INFO L93 Difference]: Finished difference Result 99 states and 106 transitions. [2018-03-29 21:32:12,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-29 21:32:12,015 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2018-03-29 21:32:12,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:32:12,016 INFO L225 Difference]: With dead ends: 99 [2018-03-29 21:32:12,016 INFO L226 Difference]: Without dead ends: 65 [2018-03-29 21:32:12,017 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-03-29 21:32:12,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-03-29 21:32:12,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-03-29 21:32:12,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-03-29 21:32:12,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2018-03-29 21:32:12,025 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 37 [2018-03-29 21:32:12,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:32:12,026 INFO L459 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2018-03-29 21:32:12,026 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-03-29 21:32:12,026 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2018-03-29 21:32:12,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-03-29 21:32:12,027 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:32:12,027 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:32:12,028 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr25AssertViolationMEMORY_FREE, mainErr21AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr20AssertViolationMEMORY_FREE, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-03-29 21:32:12,028 INFO L82 PathProgramCache]: Analyzing trace with hash 805745282, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:32:12,040 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:32:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:32:12,064 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:32:12,089 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:32:12,090 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:32:12,170 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:32:12,191 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:32:12,192 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-03-29 21:32:12,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-29 21:32:12,192 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-29 21:32:12,192 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-03-29 21:32:12,193 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand 9 states. [2018-03-29 21:32:12,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:32:12,251 INFO L93 Difference]: Finished difference Result 102 states and 108 transitions. [2018-03-29 21:32:12,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-29 21:32:12,252 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 43 [2018-03-29 21:32:12,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:32:12,253 INFO L225 Difference]: With dead ends: 102 [2018-03-29 21:32:12,253 INFO L226 Difference]: Without dead ends: 70 [2018-03-29 21:32:12,254 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 76 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2018-03-29 21:32:12,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-03-29 21:32:12,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2018-03-29 21:32:12,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-03-29 21:32:12,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2018-03-29 21:32:12,261 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 43 [2018-03-29 21:32:12,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:32:12,262 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2018-03-29 21:32:12,262 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-29 21:32:12,262 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2018-03-29 21:32:12,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-03-29 21:32:12,263 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:32:12,263 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:32:12,264 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr25AssertViolationMEMORY_FREE, mainErr21AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr20AssertViolationMEMORY_FREE, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-03-29 21:32:12,264 INFO L82 PathProgramCache]: Analyzing trace with hash 189631672, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:32:12,274 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:32:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 21:32:12,307 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 21:32:12,326 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-03-29 21:32:12,329 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 8 treesize of output 7 [2018-03-29 21:32:12,329 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:32:12,331 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:32:12,336 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:32:12,337 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2018-03-29 21:32:12,359 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-03-29 21:32:12,361 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,362 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 31 [2018-03-29 21:32:12,363 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:32:12,368 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:32:12,373 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:32:12,373 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:27, output treesize:23 [2018-03-29 21:32:12,387 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2018-03-29 21:32:12,390 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,391 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,391 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,392 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,393 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,394 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,394 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 78 [2018-03-29 21:32:12,395 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:32:12,407 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:32:12,414 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:32:12,414 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2018-03-29 21:32:12,432 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 30 [2018-03-29 21:32:12,435 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,435 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,436 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,436 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,437 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,442 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,443 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,444 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,445 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,445 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,446 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,447 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,448 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 149 [2018-03-29 21:32:12,449 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:32:12,471 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:32:12,479 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:32:12,480 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:45, output treesize:41 [2018-03-29 21:32:12,500 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 37 [2018-03-29 21:32:12,508 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,509 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,510 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,510 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,511 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,512 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,513 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,514 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,514 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,515 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,516 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,517 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,517 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,518 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,519 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,519 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,520 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,521 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,522 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,523 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,524 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 20 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 244 [2018-03-29 21:32:12,525 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:32:12,566 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:32:12,575 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:32:12,576 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:54, output treesize:50 [2018-03-29 21:32:12,597 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 34 [2018-03-29 21:32:12,600 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,601 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,602 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,602 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,603 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,603 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,604 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,605 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,605 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,606 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,606 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,607 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,608 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,608 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,609 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,609 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,610 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,611 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,611 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,612 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,613 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 73 [2018-03-29 21:32:12,614 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:32:12,615 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:32:12,618 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:32:12,618 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:50, output treesize:7 [2018-03-29 21:32:12,983 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 67 [2018-03-29 21:32:12,988 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 72 [2018-03-29 21:32:12,993 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,994 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:12,995 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 51 [2018-03-29 21:32:13,001 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:13,003 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:13,003 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:13,004 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:13,005 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 96 [2018-03-29 21:32:13,006 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-29 21:32:13,018 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:32:13,030 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:32:13,078 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:32:13,091 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-29 21:32:13,092 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:120, output treesize:79 [2018-03-29 21:32:13,134 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 64 [2018-03-29 21:32:13,138 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:13,139 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:13,140 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:13,140 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:13,141 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 51 [2018-03-29 21:32:13,141 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 21:32:13,162 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:13,163 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:13,163 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:13,164 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:13,164 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:13,165 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:13,166 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 36 [2018-03-29 21:32:13,167 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-29 21:32:13,184 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:13,185 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:13,186 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:13,186 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:13,186 INFO L682 Elim1Store]: detected equality via solver [2018-03-29 21:32:13,187 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:13,188 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:13,188 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:13,189 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 21:32:13,190 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 18 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 27 [2018-03-29 21:32:13,190 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-03-29 21:32:13,200 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:32:13,203 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:32:13,204 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:86, output treesize:3 [2018-03-29 21:32:13,222 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:32:13,222 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 21:32:13,931 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-03-29 21:32:13,932 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 21:32:13,932 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-29 21:32:13,932 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:129, output treesize:1 [2018-03-29 21:32:13,953 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 21:32:13,975 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 21:32:13,975 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 14] total 32 [2018-03-29 21:32:13,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-03-29 21:32:13,975 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-03-29 21:32:13,976 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=835, Unknown=0, NotChecked=0, Total=992 [2018-03-29 21:32:13,976 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand 32 states. [2018-03-29 21:32:14,841 WARN L151 SmtUtils]: Spent 145ms on a formula simplification. DAG size of input: 95 DAG size of output 91 [2018-03-29 21:32:15,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 21:32:15,897 INFO L93 Difference]: Finished difference Result 160 states and 168 transitions. [2018-03-29 21:32:15,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-03-29 21:32:15,897 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 46 [2018-03-29 21:32:15,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 21:32:15,901 INFO L225 Difference]: With dead ends: 160 [2018-03-29 21:32:15,901 INFO L226 Difference]: Without dead ends: 135 [2018-03-29 21:32:15,902 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 57 SyntacticMatches, 4 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 801 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=464, Invalid=2616, Unknown=0, NotChecked=0, Total=3080 [2018-03-29 21:32:15,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-03-29 21:32:15,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 82. [2018-03-29 21:32:15,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-03-29 21:32:15,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2018-03-29 21:32:15,910 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 46 [2018-03-29 21:32:15,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 21:32:15,910 INFO L459 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2018-03-29 21:32:15,910 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-03-29 21:32:15,911 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2018-03-29 21:32:15,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-03-29 21:32:15,911 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 21:32:15,912 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 21:32:15,912 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr29AssertViolationMEMORY_FREE, mainErr25AssertViolationMEMORY_FREE, mainErr21AssertViolationMEMORY_FREE, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr17AssertViolationMEMORY_FREE, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr24AssertViolationMEMORY_FREE, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr32EnsuresViolationMEMORY_LEAK, mainErr7RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr11RequiresViolation, mainErr20AssertViolationMEMORY_FREE, mainErr28AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr16AssertViolationMEMORY_FREE, mainErr14RequiresViolation]=== [2018-03-29 21:32:15,912 INFO L82 PathProgramCache]: Analyzing trace with hash -9883754, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 21:32:15,919 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 21:32:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-29 21:32:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-29 21:32:16,031 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-03-29 21:32:16,052 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == dest.base && #res.offset == dest.offset; is not ensure(true) [2018-03-29 21:32:16,058 WARN L1215 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 28 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# [2018-03-29 21:32:16,058 WARN L1215 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 27 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# [2018-03-29 21:32:16,058 WARN L1215 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 28 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# [2018-03-29 21:32:16,059 WARN L1215 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 27 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# [2018-03-29 21:32:16,059 WARN L1215 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 28 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# [2018-03-29 21:32:16,059 WARN L1215 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 27 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# [2018-03-29 21:32:16,059 WARN L1215 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 27 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# [2018-03-29 21:32:16,059 WARN L1215 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 28 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# [2018-03-29 21:32:16,059 WARN L1215 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 27 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# [2018-03-29 21:32:16,059 WARN L1215 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 28 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# [2018-03-29 21:32:16,060 WARN L1215 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 28 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# [2018-03-29 21:32:16,060 WARN L1215 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 27 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# [2018-03-29 21:32:16,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.03 09:32:16 BoogieIcfgContainer [2018-03-29 21:32:16,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-29 21:32:16,070 INFO L168 Benchmark]: Toolchain (without parser) took 6387.12 ms. Allocated memory was 303.0 MB in the beginning and 554.2 MB in the end (delta: 251.1 MB). Free memory was 246.1 MB in the beginning and 520.3 MB in the end (delta: -274.2 MB). Peak memory consumption was 185.1 MB. Max. memory is 5.3 GB. [2018-03-29 21:32:16,071 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 303.0 MB. Free memory is still 265.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-29 21:32:16,071 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.01 ms. Allocated memory is still 303.0 MB. Free memory was 245.1 MB in the beginning and 235.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-03-29 21:32:16,071 INFO L168 Benchmark]: Boogie Preprocessor took 41.92 ms. Allocated memory is still 303.0 MB. Free memory was 235.1 MB in the beginning and 233.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-03-29 21:32:16,071 INFO L168 Benchmark]: RCFGBuilder took 478.30 ms. Allocated memory was 303.0 MB in the beginning and 459.8 MB in the end (delta: 156.8 MB). Free memory was 233.1 MB in the beginning and 416.9 MB in the end (delta: -183.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 5.3 GB. [2018-03-29 21:32:16,072 INFO L168 Benchmark]: TraceAbstraction took 5628.51 ms. Allocated memory was 459.8 MB in the beginning and 554.2 MB in the end (delta: 94.4 MB). Free memory was 416.9 MB in the beginning and 520.3 MB in the end (delta: -103.3 MB). Peak memory consumption was 199.2 MB. Max. memory is 5.3 GB. [2018-03-29 21:32:16,074 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 303.0 MB. Free memory is still 265.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 232.01 ms. Allocated memory is still 303.0 MB. Free memory was 245.1 MB in the beginning and 235.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 41.92 ms. Allocated memory is still 303.0 MB. Free memory was 235.1 MB in the beginning and 233.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 478.30 ms. Allocated memory was 303.0 MB in the beginning and 459.8 MB in the end (delta: 156.8 MB). Free memory was 233.1 MB in the beginning and 416.9 MB in the end (delta: -183.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 5628.51 ms. Allocated memory was 459.8 MB in the beginning and 554.2 MB in the end (delta: 94.4 MB). Free memory was 416.9 MB in the beginning and 520.3 MB in the end (delta: -103.3 MB). Peak memory consumption was 199.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == dest.base && #res.offset == dest.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 28 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 27 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 28 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 27 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 28 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 27 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 27 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 28 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 27 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 28 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 28 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 27 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 41]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L21] FCALL struct A d; VAL [\old(d)=null, \old(d)=null, d={18:0}] [L21] FCALL struct A d; VAL [\old(d)=null, \old(d)=null, d={18:0}] [L21] FCALL struct A d; VAL [\old(d)=null, \old(d)=null, d={18:0}] [L21] FCALL struct A d; VAL [\old(d)=null, \old(d)=null, d={18:0}] [L21] FCALL struct A d; VAL [\old(d)=null, \old(d)=null, d={18:0}] [L21] FCALL struct A d; VAL [\old(d)=null, \old(d)=null, d={18:0}] [L24] struct A *p; VAL [d={18:0}] [L25] EXPR, FCALL malloc(3) VAL [d={18:0}, malloc(3)={19:0}] [L25] p = malloc(3) VAL [d={18:0}, malloc(3)={19:0}, p={19:0}] [L26] FCALL d.a = 1 VAL [d={18:0}, malloc(3)={19:0}, p={19:0}] [L27] FCALL d.b = 2 VAL [d={18:0}, malloc(3)={19:0}, p={19:0}] [L28] FCALL d.c = 3 VAL [d={18:0}, malloc(3)={19:0}, p={19:0}] [L29] FCALL d.d = 4 VAL [d={18:0}, malloc(3)={19:0}, p={19:0}] [L30] FCALL d.e = 5 VAL [d={18:0}, malloc(3)={19:0}, p={19:0}] [L31] FCALL memcpy(p, &d, 3) VAL [d={18:0}, malloc(3)={19:0}, memcpy(p, &d, 3)={19:0}, p={19:0}] [L32] EXPR, FCALL p->a VAL [d={18:0}, malloc(3)={19:0}, p={19:0}, p->a=1] [L32] COND FALSE !(p->a != 1) VAL [d={18:0}, malloc(3)={19:0}, p={19:0}, p->a=1] [L35] EXPR, FCALL p->b VAL [d={18:0}, malloc(3)={19:0}, p={19:0}, p->b=2] [L35] COND FALSE !(p->b != 2) VAL [d={18:0}, malloc(3)={19:0}, p={19:0}, p->b=2] [L38] EXPR, FCALL p->c VAL [d={18:0}, malloc(3)={19:0}, p={19:0}, p->c=3] [L38] COND FALSE !(p->c != 3) VAL [d={18:0}, malloc(3)={19:0}, p={19:0}, p->c=3] [L41] FCALL p->d - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 100 locations, 33 error locations. UNSAFE Result, 5.5s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 2.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 348 SDtfs, 1040 SDslu, 921 SDs, 0 SdLazy, 902 SolverSat, 185 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 422 GetRequests, 332 SyntacticMatches, 9 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 810 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 147 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 249 NumberOfCodeBlocks, 249 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 386 ConstructedInterpolants, 36 QuantifiedInterpolants, 209573 SizeOfPredicates, 23 NumberOfNonLiveVariables, 722 ConjunctsInSsa, 71 ConjunctsInUnsatCore, 14 InterpolantComputations, 10 PerfectInterpolantSequences, 0/34 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-bitfields-2.1_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-29_21-32-16-081.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-bitfields-2.1_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-03-29_21-32-16-081.csv Received shutdown request...