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 0.1.23-8168ed2-m [2018-04-11 23:20:52,429 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 23:20:52,432 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 23:20:52,446 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 23:20:52,447 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 23:20:52,448 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 23:20:52,449 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 23:20:52,451 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 23:20:52,453 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 23:20:52,453 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 23:20:52,454 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 23:20:52,455 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 23:20:52,456 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 23:20:52,457 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 23:20:52,458 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 23:20:52,460 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 23:20:52,462 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 23:20:52,463 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 23:20:52,464 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 23:20:52,466 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 23:20:52,468 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-11 23:20:52,468 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-11 23:20:52,468 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-11 23:20:52,469 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-11 23:20:52,470 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-11 23:20:52,471 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-11 23:20:52,472 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-11 23:20:52,472 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-11 23:20:52,473 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-11 23:20:52,473 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 23:20:52,474 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 23:20:52,474 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 [2018-04-11 23:20:52,498 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 23:20:52,498 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 23:20:52,498 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-11 23:20:52,499 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-11 23:20:52,499 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-11 23:20:52,499 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-11 23:20:52,500 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-11 23:20:52,500 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-11 23:20:52,500 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-04-11 23:20:52,500 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-11 23:20:52,501 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-11 23:20:52,501 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-11 23:20:52,501 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 23:20:52,501 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 23:20:52,501 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 23:20:52,502 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 23:20:52,502 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 23:20:52,502 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 23:20:52,502 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 23:20:52,502 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-11 23:20:52,503 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 23:20:52,503 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 23:20:52,503 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 23:20:52,503 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-11 23:20:52,503 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-11 23:20:52,503 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 23:20:52,504 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 23:20:52,504 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 23:20:52,504 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 23:20:52,504 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 23:20:52,504 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-11 23:20:52,504 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-11 23:20:52,505 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 23:20:52,505 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-11 23:20:52,506 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-11 23:20:52,506 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-11 23:20:52,506 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-11 23:20:52,506 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-11 23:20:52,540 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 23:20:52,552 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 23:20:52,556 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 23:20:52,557 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 23:20:52,557 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 23:20:52,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety-bitfields/test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-04-11 23:20:52,864 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG0c097d9c8 [2018-04-11 23:20:52,984 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 23:20:52,984 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 23:20:52,984 INFO L168 CDTParser]: Scanning test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-04-11 23:20:52,985 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 23:20:52,986 INFO L215 ultiparseSymbolTable]: [2018-04-11 23:20:52,986 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 23:20:52,986 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-04-11 23:20:52,986 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 23:20:52,986 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest_bitfields_____true_valid_memsafety_true_termination_i__size_t in test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-04-11 23:20:52,986 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest_bitfields_____true_valid_memsafety_true_termination_i__d in test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-04-11 23:20:53,001 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG0c097d9c8 [2018-04-11 23:20:53,006 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 23:20:53,008 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 23:20:53,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 23:20:53,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 23:20:53,016 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 23:20:53,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 11:20:53" (1/1) ... [2018-04-11 23:20:53,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@362ebde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:20:53, skipping insertion in model container [2018-04-11 23:20:53,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 11:20:53" (1/1) ... [2018-04-11 23:20:53,034 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 23:20:53,045 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 23:20:53,180 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 23:20:53,208 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 23:20:53,214 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 12 non ball SCCs. Number of states in SCCs 12. [2018-04-11 23:20:53,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:20:53 WrapperNode [2018-04-11 23:20:53,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 23:20:53,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 23:20:53,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 23:20:53,225 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 23:20:53,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:20:53" (1/1) ... [2018-04-11 23:20:53,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:20:53" (1/1) ... [2018-04-11 23:20:53,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:20:53" (1/1) ... [2018-04-11 23:20:53,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:20:53" (1/1) ... [2018-04-11 23:20:53,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:20:53" (1/1) ... [2018-04-11 23:20:53,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:20:53" (1/1) ... [2018-04-11 23:20:53,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:20:53" (1/1) ... [2018-04-11 23:20:53,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 23:20:53,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 23:20:53,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 23:20:53,260 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 23:20:53,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:20:53" (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 [2018-04-11 23:20:53,319 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 23:20:53,319 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 23:20:53,319 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 23:20:53,319 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2018-04-11 23:20:53,319 INFO L128 BoogieDeclarations]: Found specification of procedure memcpy [2018-04-11 23:20:53,319 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 23:20:53,320 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 23:20:53,320 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 23:20:53,320 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 23:20:53,320 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2018-04-11 23:20:53,320 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 23:20:53,320 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 23:20:53,321 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 23:20:53,321 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 23:20:53,321 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 23:20:53,321 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 23:20:53,666 WARN L446 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-04-11 23:20:53,741 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 23:20:53,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 11:20:53 BoogieIcfgContainer [2018-04-11 23:20:53,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 23:20:53,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 23:20:53,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 23:20:53,746 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 23:20:53,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 11:20:53" (1/3) ... [2018-04-11 23:20:53,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a63aa64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 11:20:53, skipping insertion in model container [2018-04-11 23:20:53,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 11:20:53" (2/3) ... [2018-04-11 23:20:53,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a63aa64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 11:20:53, skipping insertion in model container [2018-04-11 23:20:53,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 11:20:53" (3/3) ... [2018-04-11 23:20:53,750 INFO L107 eAbstractionObserver]: Analyzing ICFG test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-04-11 23:20:53,757 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 23:20:53,764 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 33 error locations. [2018-04-11 23:20:53,807 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 23:20:53,808 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 23:20:53,808 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-11 23:20:53,808 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 23:20:53,808 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 23:20:53,808 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 23:20:53,808 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 23:20:53,809 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 23:20:53,809 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 23:20:53,809 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 23:20:53,823 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2018-04-11 23:20:53,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-04-11 23:20:53,827 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 23:20:53,828 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 23:20:53,828 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]=== [2018-04-11 23:20:53,831 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 [2018-04-11 23:20:53,844 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 23:20:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 23:20:53,888 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 23:20:53,927 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 [2018-04-11 23:20:53,929 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 23:20:53,935 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:20:53,936 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 23:20:53,955 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 [2018-04-11 23:20:53,956 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 23:20:53,963 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. [2018-04-11 23:20:53,963 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-04-11 23:20:53,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:20:53,973 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 23:20:54,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:20:54,040 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 23:20:54,041 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-04-11 23:20:54,043 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-11 23:20:54,057 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-11 23:20:54,058 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 23:20:54,061 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 3 states. [2018-04-11 23:20:54,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 23:20:54,211 INFO L93 Difference]: Finished difference Result 138 states and 145 transitions. [2018-04-11 23:20:54,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-11 23:20:54,213 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-04-11 23:20:54,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 23:20:54,226 INFO L225 Difference]: With dead ends: 138 [2018-04-11 23:20:54,227 INFO L226 Difference]: Without dead ends: 129 [2018-04-11 23:20:54,230 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 [2018-04-11 23:20:54,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-04-11 23:20:54,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 91. [2018-04-11 23:20:54,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-04-11 23:20:54,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions. [2018-04-11 23:20:54,269 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 16 [2018-04-11 23:20:54,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 23:20:54,270 INFO L459 AbstractCegarLoop]: Abstraction has 91 states and 95 transitions. [2018-04-11 23:20:54,270 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-11 23:20:54,270 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions. [2018-04-11 23:20:54,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-04-11 23:20:54,271 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 23:20:54,271 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 23:20:54,271 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]=== [2018-04-11 23:20:54,271 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 [2018-04-11 23:20:54,278 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 23:20:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 23:20:54,299 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 23:20:54,313 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 [2018-04-11 23:20:54,313 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 23:20:54,319 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 [2018-04-11 23:20:54,320 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 23:20:54,324 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:20:54,324 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 23:20:54,341 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:54,343 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:54,344 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 [2018-04-11 23:20:54,345 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 23:20:54,360 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:54,361 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:54,362 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 [2018-04-11 23:20:54,363 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 23:20:54,371 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. [2018-04-11 23:20:54,371 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:14 [2018-04-11 23:20:54,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:20:54,384 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 23:20:54,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:20:54,580 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 23:20:54,580 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2018-04-11 23:20:54,582 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 23:20:54,582 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 23:20:54,582 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-11 23:20:54,582 INFO L87 Difference]: Start difference. First operand 91 states and 95 transitions. Second operand 6 states. [2018-04-11 23:20:54,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 23:20:54,759 INFO L93 Difference]: Finished difference Result 129 states and 136 transitions. [2018-04-11 23:20:54,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 23:20:54,760 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-04-11 23:20:54,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 23:20:54,762 INFO L225 Difference]: With dead ends: 129 [2018-04-11 23:20:54,762 INFO L226 Difference]: Without dead ends: 123 [2018-04-11 23:20:54,763 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-04-11 23:20:54,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-04-11 23:20:54,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 85. [2018-04-11 23:20:54,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-04-11 23:20:54,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2018-04-11 23:20:54,775 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 16 [2018-04-11 23:20:54,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 23:20:54,776 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2018-04-11 23:20:54,776 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 23:20:54,776 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2018-04-11 23:20:54,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-11 23:20:54,777 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 23:20:54,777 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] [2018-04-11 23:20:54,777 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]=== [2018-04-11 23:20:54,777 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 [2018-04-11 23:20:54,791 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 23:20:54,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 23:20:54,815 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 23:20:54,825 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 [2018-04-11 23:20:54,826 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 23:20:54,831 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:20:54,831 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 23:20:54,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:20:54,850 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 23:20:54,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:20:54,920 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 23:20:54,920 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2018-04-11 23:20:54,920 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 23:20:54,921 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 23:20:54,921 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-11 23:20:54,921 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand 6 states. [2018-04-11 23:20:54,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 23:20:54,994 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2018-04-11 23:20:54,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 23:20:54,996 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-04-11 23:20:54,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 23:20:54,997 INFO L225 Difference]: With dead ends: 85 [2018-04-11 23:20:54,997 INFO L226 Difference]: Without dead ends: 63 [2018-04-11 23:20:54,998 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-04-11 23:20:54,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-04-11 23:20:55,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-04-11 23:20:55,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-04-11 23:20:55,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2018-04-11 23:20:55,005 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 21 [2018-04-11 23:20:55,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 23:20:55,005 INFO L459 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2018-04-11 23:20:55,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 23:20:55,006 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2018-04-11 23:20:55,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-11 23:20:55,006 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 23:20:55,007 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] [2018-04-11 23:20:55,007 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]=== [2018-04-11 23:20:55,007 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 [2018-04-11 23:20:55,020 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 23:20:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 23:20:55,037 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 23:20:55,041 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 [2018-04-11 23:20:55,041 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 23:20:55,042 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:20:55,042 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 23:20:55,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:20:55,049 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 23:20:55,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:20:55,074 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 23:20:55,074 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-11 23:20:55,074 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 23:20:55,075 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 23:20:55,075 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 23:20:55,075 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand 4 states. [2018-04-11 23:20:55,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 23:20:55,142 INFO L93 Difference]: Finished difference Result 85 states and 92 transitions. [2018-04-11 23:20:55,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 23:20:55,142 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-04-11 23:20:55,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 23:20:55,143 INFO L225 Difference]: With dead ends: 85 [2018-04-11 23:20:55,143 INFO L226 Difference]: Without dead ends: 77 [2018-04-11 23:20:55,143 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 [2018-04-11 23:20:55,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-04-11 23:20:55,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 61. [2018-04-11 23:20:55,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-04-11 23:20:55,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2018-04-11 23:20:55,148 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 21 [2018-04-11 23:20:55,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 23:20:55,149 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2018-04-11 23:20:55,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 23:20:55,149 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2018-04-11 23:20:55,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-11 23:20:55,150 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 23:20:55,150 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] [2018-04-11 23:20:55,150 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]=== [2018-04-11 23:20:55,150 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 [2018-04-11 23:20:55,156 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 23:20:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 23:20:55,177 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 23:20:55,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:20:55,198 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 23:20:55,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:20:55,249 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 23:20:55,249 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-11 23:20:55,250 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 23:20:55,250 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 23:20:55,250 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-11 23:20:55,250 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand 6 states. [2018-04-11 23:20:55,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 23:20:55,272 INFO L93 Difference]: Finished difference Result 99 states and 106 transitions. [2018-04-11 23:20:55,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 23:20:55,274 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2018-04-11 23:20:55,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 23:20:55,275 INFO L225 Difference]: With dead ends: 99 [2018-04-11 23:20:55,275 INFO L226 Difference]: Without dead ends: 65 [2018-04-11 23:20:55,275 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 [2018-04-11 23:20:55,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-04-11 23:20:55,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-04-11 23:20:55,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-04-11 23:20:55,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2018-04-11 23:20:55,282 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 37 [2018-04-11 23:20:55,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 23:20:55,282 INFO L459 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2018-04-11 23:20:55,283 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 23:20:55,283 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2018-04-11 23:20:55,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-11 23:20:55,284 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 23:20:55,284 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] [2018-04-11 23:20:55,284 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]=== [2018-04-11 23:20:55,284 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 [2018-04-11 23:20:55,295 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 23:20:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 23:20:55,325 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 23:20:55,355 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:20:55,355 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 23:20:55,428 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:20:55,447 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 23:20:55,447 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-04-11 23:20:55,448 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 23:20:55,448 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 23:20:55,448 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-04-11 23:20:55,448 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand 9 states. [2018-04-11 23:20:55,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 23:20:55,517 INFO L93 Difference]: Finished difference Result 102 states and 108 transitions. [2018-04-11 23:20:55,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 23:20:55,517 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 43 [2018-04-11 23:20:55,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 23:20:55,519 INFO L225 Difference]: With dead ends: 102 [2018-04-11 23:20:55,519 INFO L226 Difference]: Without dead ends: 70 [2018-04-11 23:20:55,519 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 [2018-04-11 23:20:55,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-04-11 23:20:55,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2018-04-11 23:20:55,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-04-11 23:20:55,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2018-04-11 23:20:55,527 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 43 [2018-04-11 23:20:55,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 23:20:55,527 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2018-04-11 23:20:55,527 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 23:20:55,527 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2018-04-11 23:20:55,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-04-11 23:20:55,528 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 23:20:55,528 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] [2018-04-11 23:20:55,528 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]=== [2018-04-11 23:20:55,529 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 [2018-04-11 23:20:55,543 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 23:20:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 23:20:55,582 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 23:20:55,600 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 [2018-04-11 23:20:55,602 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 [2018-04-11 23:20:55,602 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 23:20:55,605 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:20:55,609 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:20:55,609 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2018-04-11 23:20:55,618 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 [2018-04-11 23:20:55,620 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,621 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,622 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 [2018-04-11 23:20:55,622 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 23:20:55,628 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:20:55,632 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:20:55,632 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:27, output treesize:23 [2018-04-11 23:20:55,647 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 [2018-04-11 23:20:55,650 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,651 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,652 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,652 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,653 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,654 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,654 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 [2018-04-11 23:20:55,655 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 23:20:55,664 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:20:55,670 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:20:55,670 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2018-04-11 23:20:55,686 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 [2018-04-11 23:20:55,689 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,690 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,690 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,691 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,692 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,692 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,693 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,694 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,694 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,695 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,696 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,697 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,698 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 [2018-04-11 23:20:55,699 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 23:20:55,724 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:20:55,732 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:20:55,733 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:45, output treesize:41 [2018-04-11 23:20:55,753 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 [2018-04-11 23:20:55,758 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,759 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,760 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,761 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,762 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,762 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,767 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,767 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,768 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,769 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,769 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,770 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,771 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,772 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,772 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,773 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,774 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,775 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,776 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,776 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,778 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 [2018-04-11 23:20:55,779 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 23:20:55,815 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:20:55,823 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:20:55,823 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:54, output treesize:50 [2018-04-11 23:20:55,843 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 [2018-04-11 23:20:55,847 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,847 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,848 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,849 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,849 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,850 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,850 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,851 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,851 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,852 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,852 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,853 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,854 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,854 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,855 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,856 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,856 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,857 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,858 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,858 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:55,859 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 [2018-04-11 23:20:55,860 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 23:20:55,861 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:20:55,863 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:20:55,864 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:50, output treesize:7 [2018-04-11 23:20:56,170 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 [2018-04-11 23:20:56,176 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 [2018-04-11 23:20:56,183 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,185 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,186 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 [2018-04-11 23:20:56,195 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,196 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,197 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,198 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,199 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 [2018-04-11 23:20:56,200 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 23:20:56,214 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:20:56,227 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:20:56,281 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:20:56,293 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. [2018-04-11 23:20:56,293 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:120, output treesize:79 [2018-04-11 23:20:56,330 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 [2018-04-11 23:20:56,334 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,335 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,335 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,336 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,337 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 [2018-04-11 23:20:56,337 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 23:20:56,356 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,357 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,357 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,358 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,358 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,359 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,360 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 [2018-04-11 23:20:56,360 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 23:20:56,375 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,376 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,376 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,377 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,377 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 23:20:56,378 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,378 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,379 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,379 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 23:20:56,381 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 [2018-04-11 23:20:56,381 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 23:20:56,389 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:20:56,392 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:20:56,392 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:86, output treesize:3 [2018-04-11 23:20:56,409 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:20:56,409 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 23:20:57,066 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-11 23:20:57,067 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 23:20:57,067 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 23:20:57,067 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:129, output treesize:1 [2018-04-11 23:20:57,088 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 23:20:57,106 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 23:20:57,107 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 14] total 32 [2018-04-11 23:20:57,107 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-11 23:20:57,107 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-11 23:20:57,108 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=835, Unknown=0, NotChecked=0, Total=992 [2018-04-11 23:20:57,108 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand 32 states. [2018-04-11 23:20:57,892 WARN L151 SmtUtils]: Spent 135ms on a formula simplification. DAG size of input: 95 DAG size of output 91 [2018-04-11 23:20:58,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 23:20:58,867 INFO L93 Difference]: Finished difference Result 160 states and 168 transitions. [2018-04-11 23:20:58,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-11 23:20:58,867 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 46 [2018-04-11 23:20:58,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 23:20:58,869 INFO L225 Difference]: With dead ends: 160 [2018-04-11 23:20:58,870 INFO L226 Difference]: Without dead ends: 135 [2018-04-11 23:20:58,871 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 57 SyntacticMatches, 4 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 801 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=464, Invalid=2616, Unknown=0, NotChecked=0, Total=3080 [2018-04-11 23:20:58,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-04-11 23:20:58,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 82. [2018-04-11 23:20:58,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-04-11 23:20:58,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2018-04-11 23:20:58,882 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 46 [2018-04-11 23:20:58,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 23:20:58,882 INFO L459 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2018-04-11 23:20:58,882 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-11 23:20:58,882 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2018-04-11 23:20:58,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-11 23:20:58,883 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 23:20:58,883 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] [2018-04-11 23:20:58,883 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]=== [2018-04-11 23:20:58,884 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 [2018-04-11 23:20:58,892 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 23:20:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-11 23:20:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-11 23:20:58,983 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-11 23:20:59,005 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == dest.base && #res.offset == dest.offset; is not ensure(true) [2018-04-11 23:20:59,013 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# [2018-04-11 23:20:59,013 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# [2018-04-11 23:20:59,014 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# [2018-04-11 23:20:59,014 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# [2018-04-11 23:20:59,014 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# [2018-04-11 23:20:59,014 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# [2018-04-11 23:20:59,015 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# [2018-04-11 23:20:59,015 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# [2018-04-11 23:20:59,015 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# [2018-04-11 23:20:59,015 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# [2018-04-11 23:20:59,016 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# [2018-04-11 23:20:59,016 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# [2018-04-11 23:20:59,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 11:20:59 BoogieIcfgContainer [2018-04-11 23:20:59,027 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 23:20:59,028 INFO L168 Benchmark]: Toolchain (without parser) took 6021.51 ms. Allocated memory was 304.1 MB in the beginning and 553.1 MB in the end (delta: 249.0 MB). Free memory was 247.3 MB in the beginning and 499.9 MB in the end (delta: -252.6 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 23:20:59,029 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 304.1 MB. Free memory is still 266.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 23:20:59,030 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.06 ms. Allocated memory is still 304.1 MB. Free memory was 247.3 MB in the beginning and 236.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 5.3 GB. [2018-04-11 23:20:59,030 INFO L168 Benchmark]: Boogie Preprocessor took 34.08 ms. Allocated memory is still 304.1 MB. Free memory was 236.3 MB in the beginning and 235.3 MB in the end (delta: 996.2 kB). Peak memory consumption was 996.2 kB. Max. memory is 5.3 GB. [2018-04-11 23:20:59,030 INFO L168 Benchmark]: RCFGBuilder took 482.41 ms. Allocated memory was 304.1 MB in the beginning and 462.9 MB in the end (delta: 158.9 MB). Free memory was 235.3 MB in the beginning and 421.8 MB in the end (delta: -186.5 MB). Peak memory consumption was 24.7 MB. Max. memory is 5.3 GB. [2018-04-11 23:20:59,031 INFO L168 Benchmark]: TraceAbstraction took 5284.52 ms. Allocated memory was 462.9 MB in the beginning and 553.1 MB in the end (delta: 90.2 MB). Free memory was 421.8 MB in the beginning and 499.9 MB in the end (delta: -78.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. [2018-04-11 23:20:59,034 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 304.1 MB. Free memory is still 266.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 215.06 ms. Allocated memory is still 304.1 MB. Free memory was 247.3 MB in the beginning and 236.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 34.08 ms. Allocated memory is still 304.1 MB. Free memory was 236.3 MB in the beginning and 235.3 MB in the end (delta: 996.2 kB). Peak memory consumption was 996.2 kB. Max. memory is 5.3 GB. * RCFGBuilder took 482.41 ms. Allocated memory was 304.1 MB in the beginning and 462.9 MB in the end (delta: 158.9 MB). Free memory was 235.3 MB in the beginning and 421.8 MB in the end (delta: -186.5 MB). Peak memory consumption was 24.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 5284.52 ms. Allocated memory was 462.9 MB in the beginning and 553.1 MB in the end (delta: 90.2 MB). Free memory was 421.8 MB in the beginning and 499.9 MB in the end (delta: -78.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == dest.base && #res.offset == dest.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 28 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 27 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 27 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 28 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 28 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 27 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 27 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 28 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 28 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 27 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - 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, 5.2s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 348 SDtfs, 1040 SDslu, 921 SDs, 0 SdLazy, 902 SolverSat, 185 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 422 GetRequests, 332 SyntacticMatches, 9 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 810 ImplicationChecksByTransitivity, 2.1s 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, 2.1s 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-0-2018-04-11_23-20-59-043.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-0-2018-04-11_23-20-59-043.csv Received shutdown request...