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 0.1.23-453dfda-m [2018-04-09 22:16:01,972 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-09 22:16:01,974 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-09 22:16:01,988 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-09 22:16:01,988 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-09 22:16:01,989 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-09 22:16:01,991 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-09 22:16:01,993 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-09 22:16:01,995 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-09 22:16:01,996 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-09 22:16:01,997 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-09 22:16:01,997 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-09 22:16:01,998 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-09 22:16:01,999 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-09 22:16:02,000 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-09 22:16:02,003 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-09 22:16:02,005 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-09 22:16:02,007 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-09 22:16:02,008 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-09 22:16:02,010 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-09 22:16:02,012 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-09 22:16:02,012 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-09 22:16:02,013 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-09 22:16:02,014 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-09 22:16:02,015 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-09 22:16:02,016 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-09 22:16:02,016 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-09 22:16:02,017 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-09 22:16:02,018 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-09 22:16:02,018 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-09 22:16:02,019 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-09 22:16:02,019 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 [2018-04-09 22:16:02,067 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-09 22:16:02,067 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-09 22:16:02,068 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-09 22:16:02,068 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-09 22:16:02,069 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-09 22:16:02,069 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-09 22:16:02,069 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-09 22:16:02,069 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-09 22:16:02,070 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-04-09 22:16:02,070 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-09 22:16:02,070 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-09 22:16:02,071 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-09 22:16:02,071 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-09 22:16:02,071 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-09 22:16:02,071 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-09 22:16:02,071 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-09 22:16:02,072 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-09 22:16:02,072 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-09 22:16:02,072 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-09 22:16:02,072 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-09 22:16:02,072 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-09 22:16:02,073 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-09 22:16:02,073 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-09 22:16:02,073 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-09 22:16:02,073 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-09 22:16:02,074 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-09 22:16:02,074 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-09 22:16:02,074 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-09 22:16:02,074 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-09 22:16:02,074 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-09 22:16:02,075 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-09 22:16:02,075 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-09 22:16:02,075 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-09 22:16:02,075 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-09 22:16:02,076 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-09 22:16:02,076 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-09 22:16:02,076 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-09 22:16:02,077 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-09 22:16:02,112 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-09 22:16:02,126 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-09 22:16:02,130 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-09 22:16:02,132 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-09 22:16:02,133 INFO L276 PluginConnector]: CDTParser initialized [2018-04-09 22:16:02,134 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety-bitfields/test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-04-09 22:16:02,462 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGb52592f59 [2018-04-09 22:16:02,596 INFO L287 CDTParser]: IsIndexed: true [2018-04-09 22:16:02,596 INFO L288 CDTParser]: Found 1 translation units. [2018-04-09 22:16:02,597 INFO L168 CDTParser]: Scanning test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-04-09 22:16:02,598 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-09 22:16:02,599 INFO L215 ultiparseSymbolTable]: [2018-04-09 22:16:02,599 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-09 22:16:02,599 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-04-09 22:16:02,599 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-09 22:16:02,599 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest_bitfields_____true_valid_memsafety_true_termination_i__size_t in test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-04-09 22:16:02,599 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest_bitfields_____true_valid_memsafety_true_termination_i__d in test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-04-09 22:16:02,614 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGb52592f59 [2018-04-09 22:16:02,619 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-09 22:16:02,622 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-09 22:16:02,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-09 22:16:02,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-09 22:16:02,630 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-09 22:16:02,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.04 10:16:02" (1/1) ... [2018-04-09 22:16:02,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6587b420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:16:02, skipping insertion in model container [2018-04-09 22:16:02,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.04 10:16:02" (1/1) ... [2018-04-09 22:16:02,647 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-09 22:16:02,661 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-09 22:16:02,809 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-09 22:16:02,838 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-09 22:16:02,846 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 12 non ball SCCs. Number of states in SCCs 12. [2018-04-09 22:16:02,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:16:02 WrapperNode [2018-04-09 22:16:02,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-09 22:16:02,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-09 22:16:02,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-09 22:16:02,862 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-09 22:16:02,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:16:02" (1/1) ... [2018-04-09 22:16:02,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:16:02" (1/1) ... [2018-04-09 22:16:02,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:16:02" (1/1) ... [2018-04-09 22:16:02,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:16:02" (1/1) ... [2018-04-09 22:16:02,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:16:02" (1/1) ... [2018-04-09 22:16:02,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:16:02" (1/1) ... [2018-04-09 22:16:02,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:16:02" (1/1) ... [2018-04-09 22:16:02,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-09 22:16:02,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-09 22:16:02,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-09 22:16:02,903 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-09 22:16:02,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:16:02" (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 [2018-04-09 22:16:02,961 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-09 22:16:02,961 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-09 22:16:02,961 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-09 22:16:02,961 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2018-04-09 22:16:02,961 INFO L128 BoogieDeclarations]: Found specification of procedure memcpy [2018-04-09 22:16:02,962 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-09 22:16:02,962 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-09 22:16:02,962 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-09 22:16:02,962 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-09 22:16:02,962 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2018-04-09 22:16:02,962 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-09 22:16:02,963 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-09 22:16:02,963 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-09 22:16:02,963 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-09 22:16:02,963 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-09 22:16:02,963 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-09 22:16:03,321 WARN L446 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-04-09 22:16:03,373 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-09 22:16:03,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.04 10:16:03 BoogieIcfgContainer [2018-04-09 22:16:03,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-09 22:16:03,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-09 22:16:03,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-09 22:16:03,378 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-09 22:16:03,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.04 10:16:02" (1/3) ... [2018-04-09 22:16:03,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab40a31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.04 10:16:03, skipping insertion in model container [2018-04-09 22:16:03,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.04 10:16:02" (2/3) ... [2018-04-09 22:16:03,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab40a31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.04 10:16:03, skipping insertion in model container [2018-04-09 22:16:03,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.04 10:16:03" (3/3) ... [2018-04-09 22:16:03,382 INFO L107 eAbstractionObserver]: Analyzing ICFG test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-04-09 22:16:03,389 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-09 22:16:03,396 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 33 error locations. [2018-04-09 22:16:03,435 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-09 22:16:03,436 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-09 22:16:03,436 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-09 22:16:03,436 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-09 22:16:03,436 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-09 22:16:03,436 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-09 22:16:03,436 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-09 22:16:03,437 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-09 22:16:03,437 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-09 22:16:03,437 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-09 22:16:03,453 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2018-04-09 22:16:03,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-04-09 22:16:03,458 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:16:03,459 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:16:03,459 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]=== [2018-04-09 22:16:03,463 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 [2018-04-09 22:16:03,481 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:16:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:16:03,530 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:16:03,584 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 [2018-04-09 22:16:03,586 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:16:03,593 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:16:03,593 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-09 22:16:03,627 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 [2018-04-09 22:16:03,628 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:16:03,636 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. [2018-04-09 22:16:03,637 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-04-09 22:16:03,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:16:03,651 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:16:03,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:16:03,717 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:16:03,717 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-04-09 22:16:03,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-09 22:16:03,735 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-09 22:16:03,735 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-09 22:16:03,738 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 3 states. [2018-04-09 22:16:03,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:16:03,907 INFO L93 Difference]: Finished difference Result 138 states and 145 transitions. [2018-04-09 22:16:03,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-09 22:16:03,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-04-09 22:16:03,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:16:03,924 INFO L225 Difference]: With dead ends: 138 [2018-04-09 22:16:03,924 INFO L226 Difference]: Without dead ends: 129 [2018-04-09 22:16:03,928 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 [2018-04-09 22:16:03,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-04-09 22:16:03,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 91. [2018-04-09 22:16:03,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-04-09 22:16:03,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions. [2018-04-09 22:16:03,977 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 16 [2018-04-09 22:16:03,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:16:03,978 INFO L459 AbstractCegarLoop]: Abstraction has 91 states and 95 transitions. [2018-04-09 22:16:03,978 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-09 22:16:03,978 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions. [2018-04-09 22:16:03,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-04-09 22:16:03,979 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:16:03,979 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-09 22:16:03,979 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]=== [2018-04-09 22:16:03,980 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 [2018-04-09 22:16:03,989 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:16:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:16:04,013 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:16:04,020 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 [2018-04-09 22:16:04,021 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:16:04,034 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 [2018-04-09 22:16:04,034 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:16:04,042 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:16:04,042 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-09 22:16:04,075 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:04,078 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:04,080 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 [2018-04-09 22:16:04,081 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:16:04,104 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:04,106 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:04,107 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 [2018-04-09 22:16:04,108 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:16:04,149 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. [2018-04-09 22:16:04,150 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:14 [2018-04-09 22:16:04,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:16:04,187 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:16:04,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:16:04,397 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:16:04,397 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2018-04-09 22:16:04,399 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-09 22:16:04,399 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-09 22:16:04,399 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-09 22:16:04,399 INFO L87 Difference]: Start difference. First operand 91 states and 95 transitions. Second operand 6 states. [2018-04-09 22:16:04,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:16:04,595 INFO L93 Difference]: Finished difference Result 129 states and 136 transitions. [2018-04-09 22:16:04,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-09 22:16:04,595 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-04-09 22:16:04,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:16:04,597 INFO L225 Difference]: With dead ends: 129 [2018-04-09 22:16:04,597 INFO L226 Difference]: Without dead ends: 123 [2018-04-09 22:16:04,599 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-04-09 22:16:04,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-04-09 22:16:04,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 85. [2018-04-09 22:16:04,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-04-09 22:16:04,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2018-04-09 22:16:04,609 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 16 [2018-04-09 22:16:04,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:16:04,609 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2018-04-09 22:16:04,609 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-09 22:16:04,610 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2018-04-09 22:16:04,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-09 22:16:04,610 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:16:04,611 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] [2018-04-09 22:16:04,611 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]=== [2018-04-09 22:16:04,611 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 [2018-04-09 22:16:04,628 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:16:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:16:04,648 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:16:04,666 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 [2018-04-09 22:16:04,666 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:16:04,704 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:16:04,705 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-09 22:16:04,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:16:04,772 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:16:04,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:16:04,888 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:16:04,889 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2018-04-09 22:16:04,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-09 22:16:04,889 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-09 22:16:04,890 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-09 22:16:04,891 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand 6 states. [2018-04-09 22:16:05,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:16:05,023 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2018-04-09 22:16:05,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-09 22:16:05,024 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-04-09 22:16:05,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:16:05,025 INFO L225 Difference]: With dead ends: 85 [2018-04-09 22:16:05,025 INFO L226 Difference]: Without dead ends: 63 [2018-04-09 22:16:05,026 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-09 22:16:05,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-04-09 22:16:05,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-04-09 22:16:05,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-04-09 22:16:05,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2018-04-09 22:16:05,032 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 21 [2018-04-09 22:16:05,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:16:05,033 INFO L459 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2018-04-09 22:16:05,033 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-09 22:16:05,033 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2018-04-09 22:16:05,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-09 22:16:05,034 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:16:05,034 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] [2018-04-09 22:16:05,034 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]=== [2018-04-09 22:16:05,034 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 [2018-04-09 22:16:05,048 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:16:05,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:16:05,069 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:16:05,076 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 [2018-04-09 22:16:05,077 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:16:05,078 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:16:05,078 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-09 22:16:05,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:16:05,085 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:16:05,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:16:05,115 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:16:05,115 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-09 22:16:05,116 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-09 22:16:05,116 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-09 22:16:05,116 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-09 22:16:05,116 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand 4 states. [2018-04-09 22:16:05,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:16:05,196 INFO L93 Difference]: Finished difference Result 85 states and 92 transitions. [2018-04-09 22:16:05,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-09 22:16:05,197 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-04-09 22:16:05,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:16:05,198 INFO L225 Difference]: With dead ends: 85 [2018-04-09 22:16:05,198 INFO L226 Difference]: Without dead ends: 77 [2018-04-09 22:16:05,198 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 [2018-04-09 22:16:05,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-04-09 22:16:05,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 61. [2018-04-09 22:16:05,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-04-09 22:16:05,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2018-04-09 22:16:05,203 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 21 [2018-04-09 22:16:05,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:16:05,203 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2018-04-09 22:16:05,203 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-09 22:16:05,204 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2018-04-09 22:16:05,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-09 22:16:05,204 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:16:05,204 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] [2018-04-09 22:16:05,205 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]=== [2018-04-09 22:16:05,205 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 [2018-04-09 22:16:05,216 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:16:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:16:05,243 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:16:05,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:16:05,255 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:16:05,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:16:05,322 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-09 22:16:05,322 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-09 22:16:05,322 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-09 22:16:05,322 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-09 22:16:05,323 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-09 22:16:05,323 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand 6 states. [2018-04-09 22:16:05,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:16:05,346 INFO L93 Difference]: Finished difference Result 99 states and 106 transitions. [2018-04-09 22:16:05,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-09 22:16:05,348 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2018-04-09 22:16:05,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:16:05,350 INFO L225 Difference]: With dead ends: 99 [2018-04-09 22:16:05,350 INFO L226 Difference]: Without dead ends: 65 [2018-04-09 22:16:05,351 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 [2018-04-09 22:16:05,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-04-09 22:16:05,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-04-09 22:16:05,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-04-09 22:16:05,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2018-04-09 22:16:05,359 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 37 [2018-04-09 22:16:05,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:16:05,359 INFO L459 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2018-04-09 22:16:05,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-09 22:16:05,360 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2018-04-09 22:16:05,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-09 22:16:05,361 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:16:05,361 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] [2018-04-09 22:16:05,361 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]=== [2018-04-09 22:16:05,361 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 [2018-04-09 22:16:05,375 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:16:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:16:05,401 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:16:05,424 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:16:05,424 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:16:05,484 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:16:05,506 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 22:16:05,506 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-04-09 22:16:05,506 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-09 22:16:05,506 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-09 22:16:05,507 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-04-09 22:16:05,507 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand 9 states. [2018-04-09 22:16:05,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:16:05,568 INFO L93 Difference]: Finished difference Result 102 states and 108 transitions. [2018-04-09 22:16:05,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-09 22:16:05,569 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 43 [2018-04-09 22:16:05,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:16:05,570 INFO L225 Difference]: With dead ends: 102 [2018-04-09 22:16:05,570 INFO L226 Difference]: Without dead ends: 70 [2018-04-09 22:16:05,571 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 [2018-04-09 22:16:05,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-04-09 22:16:05,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2018-04-09 22:16:05,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-04-09 22:16:05,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2018-04-09 22:16:05,579 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 43 [2018-04-09 22:16:05,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:16:05,579 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2018-04-09 22:16:05,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-09 22:16:05,579 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2018-04-09 22:16:05,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-04-09 22:16:05,581 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:16:05,581 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] [2018-04-09 22:16:05,581 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]=== [2018-04-09 22:16:05,581 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 [2018-04-09 22:16:05,591 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:16:05,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-09 22:16:05,625 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-09 22:16:05,645 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 [2018-04-09 22:16:05,647 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 [2018-04-09 22:16:05,647 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:16:05,649 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:16:05,655 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:16:05,656 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2018-04-09 22:16:05,668 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 [2018-04-09 22:16:05,671 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,672 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,673 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 [2018-04-09 22:16:05,673 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:16:05,680 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:16:05,685 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:16:05,685 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:27, output treesize:23 [2018-04-09 22:16:05,701 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 [2018-04-09 22:16:05,704 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,704 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,705 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,706 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,707 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,707 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,708 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 [2018-04-09 22:16:05,709 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:16:05,719 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:16:05,726 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:16:05,727 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2018-04-09 22:16:05,744 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 [2018-04-09 22:16:05,748 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,749 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,750 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,751 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,751 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,752 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,753 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,754 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,755 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,756 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,757 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,758 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,759 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 [2018-04-09 22:16:05,761 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:16:05,783 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:16:05,791 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:16:05,792 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:45, output treesize:41 [2018-04-09 22:16:05,819 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 [2018-04-09 22:16:05,824 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,825 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,826 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,827 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,827 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,828 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,829 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,830 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,831 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,832 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,832 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,833 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,834 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,834 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,835 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,836 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,836 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,837 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,838 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,838 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,840 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 [2018-04-09 22:16:05,841 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:16:05,871 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:16:05,880 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:16:05,880 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:54, output treesize:50 [2018-04-09 22:16:05,901 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 [2018-04-09 22:16:05,905 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,908 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,909 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,909 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,910 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,911 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,911 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,912 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,912 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,913 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,913 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,914 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,915 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,915 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,916 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,917 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,917 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,918 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,918 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,919 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:05,920 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 [2018-04-09 22:16:05,921 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:16:05,922 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:16:05,925 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:16:05,925 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:50, output treesize:7 [2018-04-09 22:16:06,286 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 [2018-04-09 22:16:06,292 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 [2018-04-09 22:16:06,299 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,301 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,302 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 [2018-04-09 22:16:06,311 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,313 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,314 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,316 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,317 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 [2018-04-09 22:16:06,318 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-09 22:16:06,341 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:16:06,353 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:16:06,398 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:16:06,411 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. [2018-04-09 22:16:06,411 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:120, output treesize:79 [2018-04-09 22:16:06,450 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 [2018-04-09 22:16:06,454 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,455 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,456 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,457 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,457 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 [2018-04-09 22:16:06,458 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-09 22:16:06,478 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,479 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,479 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,480 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,480 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,481 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,482 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 [2018-04-09 22:16:06,482 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-09 22:16:06,499 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,500 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,501 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,502 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,502 INFO L682 Elim1Store]: detected equality via solver [2018-04-09 22:16:06,503 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,504 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,504 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,505 INFO L700 Elim1Store]: detected not equals via solver [2018-04-09 22:16:06,506 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 [2018-04-09 22:16:06,507 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-09 22:16:06,516 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:16:06,520 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:16:06,520 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:86, output treesize:3 [2018-04-09 22:16:06,548 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:16:06,548 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-09 22:16:07,285 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-09 22:16:07,286 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-09 22:16:07,286 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-09 22:16:07,286 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:129, output treesize:1 [2018-04-09 22:16:07,308 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-09 22:16:07,330 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-09 22:16:07,330 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 14] total 32 [2018-04-09 22:16:07,331 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-09 22:16:07,331 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-09 22:16:07,332 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=835, Unknown=0, NotChecked=0, Total=992 [2018-04-09 22:16:07,332 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand 32 states. [2018-04-09 22:16:08,205 WARN L151 SmtUtils]: Spent 147ms on a formula simplification. DAG size of input: 95 DAG size of output 91 [2018-04-09 22:16:09,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-09 22:16:09,344 INFO L93 Difference]: Finished difference Result 160 states and 168 transitions. [2018-04-09 22:16:09,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-09 22:16:09,345 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 46 [2018-04-09 22:16:09,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-09 22:16:09,347 INFO L225 Difference]: With dead ends: 160 [2018-04-09 22:16:09,347 INFO L226 Difference]: Without dead ends: 135 [2018-04-09 22:16:09,349 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 57 SyntacticMatches, 4 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 801 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=464, Invalid=2616, Unknown=0, NotChecked=0, Total=3080 [2018-04-09 22:16:09,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-04-09 22:16:09,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 82. [2018-04-09 22:16:09,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-04-09 22:16:09,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2018-04-09 22:16:09,360 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 46 [2018-04-09 22:16:09,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-09 22:16:09,360 INFO L459 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2018-04-09 22:16:09,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-09 22:16:09,360 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2018-04-09 22:16:09,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-09 22:16:09,362 INFO L347 BasicCegarLoop]: Found error trace [2018-04-09 22:16:09,362 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] [2018-04-09 22:16:09,362 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]=== [2018-04-09 22:16:09,362 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 [2018-04-09 22:16:09,368 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-09 22:16:09,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-09 22:16:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-09 22:16:09,465 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-09 22:16:09,488 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == dest.base && #res.offset == dest.offset; is not ensure(true) [2018-04-09 22:16:09,496 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# [2018-04-09 22:16:09,497 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# [2018-04-09 22:16:09,497 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# [2018-04-09 22:16:09,497 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# [2018-04-09 22:16:09,498 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# [2018-04-09 22:16:09,498 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# [2018-04-09 22:16:09,498 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# [2018-04-09 22:16:09,498 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# [2018-04-09 22:16:09,499 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# [2018-04-09 22:16:09,499 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# [2018-04-09 22:16:09,499 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# [2018-04-09 22:16:09,500 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# [2018-04-09 22:16:09,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.04 10:16:09 BoogieIcfgContainer [2018-04-09 22:16:09,513 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-09 22:16:09,513 INFO L168 Benchmark]: Toolchain (without parser) took 6893.40 ms. Allocated memory was 308.8 MB in the beginning and 551.6 MB in the end (delta: 242.7 MB). Free memory was 252.1 MB in the beginning and 461.3 MB in the end (delta: -209.2 MB). Peak memory consumption was 33.6 MB. Max. memory is 5.3 GB. [2018-04-09 22:16:09,515 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 308.8 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-09 22:16:09,515 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.53 ms. Allocated memory is still 308.8 MB. Free memory was 252.1 MB in the beginning and 240.1 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. [2018-04-09 22:16:09,516 INFO L168 Benchmark]: Boogie Preprocessor took 40.21 ms. Allocated memory is still 308.8 MB. Free memory was 240.1 MB in the beginning and 238.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-04-09 22:16:09,516 INFO L168 Benchmark]: RCFGBuilder took 471.87 ms. Allocated memory was 308.8 MB in the beginning and 468.2 MB in the end (delta: 159.4 MB). Free memory was 238.1 MB in the beginning and 426.3 MB in the end (delta: -188.2 MB). Peak memory consumption was 24.5 MB. Max. memory is 5.3 GB. [2018-04-09 22:16:09,517 INFO L168 Benchmark]: TraceAbstraction took 6137.40 ms. Allocated memory was 468.2 MB in the beginning and 551.6 MB in the end (delta: 83.4 MB). Free memory was 426.3 MB in the beginning and 461.3 MB in the end (delta: -34.9 MB). Peak memory consumption was 48.4 MB. Max. memory is 5.3 GB. [2018-04-09 22:16:09,518 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 308.8 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 238.53 ms. Allocated memory is still 308.8 MB. Free memory was 252.1 MB in the beginning and 240.1 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 40.21 ms. Allocated memory is still 308.8 MB. Free memory was 240.1 MB in the beginning and 238.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 471.87 ms. Allocated memory was 308.8 MB in the beginning and 468.2 MB in the end (delta: 159.4 MB). Free memory was 238.1 MB in the beginning and 426.3 MB in the end (delta: -188.2 MB). Peak memory consumption was 24.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 6137.40 ms. Allocated memory was 468.2 MB in the beginning and 551.6 MB in the end (delta: 83.4 MB). Free memory was 426.3 MB in the beginning and 461.3 MB in the end (delta: -34.9 MB). Peak memory consumption was 48.4 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 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 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 28 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, 6.0s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 2.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 348 SDtfs, 1040 SDslu, 921 SDs, 0 SdLazy, 902 SolverSat, 185 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 422 GetRequests, 332 SyntacticMatches, 9 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 810 ImplicationChecksByTransitivity, 2.4s 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, 2.5s 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-0-2018-04-09_22-16-09-528.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-0-2018-04-09_22-16-09-528.csv Received shutdown request...