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 0.1.23-35b68b2 [2018-04-06 21:28:57,157 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-06 21:28:57,159 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-06 21:28:57,172 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-06 21:28:57,172 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-06 21:28:57,173 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-06 21:28:57,174 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-06 21:28:57,176 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-06 21:28:57,178 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-06 21:28:57,179 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-06 21:28:57,180 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-06 21:28:57,180 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-06 21:28:57,181 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-06 21:28:57,183 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-06 21:28:57,184 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-06 21:28:57,186 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-06 21:28:57,188 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-06 21:28:57,190 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-06 21:28:57,191 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-06 21:28:57,192 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-06 21:28:57,195 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-06 21:28:57,195 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-06 21:28:57,195 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-06 21:28:57,196 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-06 21:28:57,197 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-06 21:28:57,199 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-06 21:28:57,199 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-06 21:28:57,200 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-06 21:28:57,200 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-06 21:28:57,200 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-06 21:28:57,201 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-06 21:28:57,201 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 [2018-04-06 21:28:57,224 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-06 21:28:57,225 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-06 21:28:57,225 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-06 21:28:57,225 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-06 21:28:57,225 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-06 21:28:57,226 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-06 21:28:57,226 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-06 21:28:57,226 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-06 21:28:57,226 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-04-06 21:28:57,226 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-06 21:28:57,226 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-06 21:28:57,226 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-06 21:28:57,227 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-06 21:28:57,227 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-06 21:28:57,227 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-06 21:28:57,227 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-06 21:28:57,227 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-06 21:28:57,228 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-06 21:28:57,228 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-06 21:28:57,228 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-06 21:28:57,228 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-06 21:28:57,228 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-06 21:28:57,228 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-06 21:28:57,229 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-06 21:28:57,229 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-06 21:28:57,229 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-06 21:28:57,229 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-06 21:28:57,229 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-06 21:28:57,230 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-06 21:28:57,230 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-06 21:28:57,230 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-06 21:28:57,230 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-06 21:28:57,230 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-06 21:28:57,230 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-06 21:28:57,231 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-06 21:28:57,231 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-06 21:28:57,232 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-06 21:28:57,232 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-06 21:28:57,263 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-06 21:28:57,272 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-06 21:28:57,275 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-06 21:28:57,277 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-06 21:28:57,277 INFO L276 PluginConnector]: CDTParser initialized [2018-04-06 21:28:57,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety-bitfields/test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-04-06 21:28:57,564 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG84e82cb8d [2018-04-06 21:28:57,715 INFO L287 CDTParser]: IsIndexed: true [2018-04-06 21:28:57,715 INFO L288 CDTParser]: Found 1 translation units. [2018-04-06 21:28:57,715 INFO L168 CDTParser]: Scanning test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-04-06 21:28:57,717 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-06 21:28:57,717 INFO L215 ultiparseSymbolTable]: [2018-04-06 21:28:57,717 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-06 21:28:57,717 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-04-06 21:28:57,717 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-06 21:28:57,717 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest_bitfields_____true_valid_memsafety_true_termination_i__size_t in test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-04-06 21:28:57,717 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest_bitfields_____true_valid_memsafety_true_termination_i__d in test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-04-06 21:28:57,733 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG84e82cb8d [2018-04-06 21:28:57,738 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-06 21:28:57,740 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-06 21:28:57,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-06 21:28:57,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-06 21:28:57,747 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-06 21:28:57,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 09:28:57" (1/1) ... [2018-04-06 21:28:57,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7324b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:28:57, skipping insertion in model container [2018-04-06 21:28:57,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 09:28:57" (1/1) ... [2018-04-06 21:28:57,764 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-06 21:28:57,778 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-06 21:28:57,925 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-06 21:28:57,950 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-06 21:28:57,958 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 12 non ball SCCs. Number of states in SCCs 12. [2018-04-06 21:28:57,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:28:57 WrapperNode [2018-04-06 21:28:57,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-06 21:28:57,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-06 21:28:57,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-06 21:28:57,975 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-06 21:28:57,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:28:57" (1/1) ... [2018-04-06 21:28:57,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:28:57" (1/1) ... [2018-04-06 21:28:57,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:28:57" (1/1) ... [2018-04-06 21:28:57,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:28:57" (1/1) ... [2018-04-06 21:28:58,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:28:57" (1/1) ... [2018-04-06 21:28:58,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:28:57" (1/1) ... [2018-04-06 21:28:58,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:28:57" (1/1) ... [2018-04-06 21:28:58,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-06 21:28:58,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-06 21:28:58,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-06 21:28:58,017 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-06 21:28:58,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:28:57" (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 [2018-04-06 21:28:58,084 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-06 21:28:58,084 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-06 21:28:58,085 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-06 21:28:58,085 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2018-04-06 21:28:58,085 INFO L128 BoogieDeclarations]: Found specification of procedure memcpy [2018-04-06 21:28:58,085 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-06 21:28:58,085 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-06 21:28:58,085 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-06 21:28:58,086 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-06 21:28:58,086 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2018-04-06 21:28:58,086 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-06 21:28:58,086 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-06 21:28:58,086 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-06 21:28:58,086 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-06 21:28:58,087 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-06 21:28:58,087 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-06 21:28:58,447 WARN L446 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-04-06 21:28:58,491 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-06 21:28:58,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 09:28:58 BoogieIcfgContainer [2018-04-06 21:28:58,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-06 21:28:58,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-06 21:28:58,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-06 21:28:58,496 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-06 21:28:58,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 09:28:57" (1/3) ... [2018-04-06 21:28:58,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6820b891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 09:28:58, skipping insertion in model container [2018-04-06 21:28:58,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 09:28:57" (2/3) ... [2018-04-06 21:28:58,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6820b891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 09:28:58, skipping insertion in model container [2018-04-06 21:28:58,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 09:28:58" (3/3) ... [2018-04-06 21:28:58,499 INFO L107 eAbstractionObserver]: Analyzing ICFG test-bitfields-2.1_true-valid-memsafety_true-termination.i [2018-04-06 21:28:58,509 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-06 21:28:58,515 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 33 error locations. [2018-04-06 21:28:58,558 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-06 21:28:58,559 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-06 21:28:58,559 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-06 21:28:58,559 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-06 21:28:58,559 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-06 21:28:58,559 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-06 21:28:58,559 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-06 21:28:58,560 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-06 21:28:58,560 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-06 21:28:58,560 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-06 21:28:58,574 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2018-04-06 21:28:58,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-04-06 21:28:58,579 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:28:58,579 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 21:28:58,579 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]=== [2018-04-06 21:28:58,583 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 [2018-04-06 21:28:58,596 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:28:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:28:58,642 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:28:58,685 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 [2018-04-06 21:28:58,688 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 21:28:58,699 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:28:58,699 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-06 21:28:58,727 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 [2018-04-06 21:28:58,728 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 21:28:58,738 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. [2018-04-06 21:28:58,739 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-04-06 21:28:58,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:28:58,752 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:28:58,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:28:58,811 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 21:28:58,811 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-04-06 21:28:58,814 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-06 21:28:58,828 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-06 21:28:58,829 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-06 21:28:58,831 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 3 states. [2018-04-06 21:28:58,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:28:58,957 INFO L93 Difference]: Finished difference Result 138 states and 145 transitions. [2018-04-06 21:28:58,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-06 21:28:58,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-04-06 21:28:58,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:28:58,973 INFO L225 Difference]: With dead ends: 138 [2018-04-06 21:28:58,974 INFO L226 Difference]: Without dead ends: 129 [2018-04-06 21:28:58,977 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 [2018-04-06 21:28:58,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-04-06 21:28:59,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 91. [2018-04-06 21:28:59,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-04-06 21:28:59,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 95 transitions. [2018-04-06 21:28:59,015 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 95 transitions. Word has length 16 [2018-04-06 21:28:59,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:28:59,015 INFO L459 AbstractCegarLoop]: Abstraction has 91 states and 95 transitions. [2018-04-06 21:28:59,015 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-06 21:28:59,015 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 95 transitions. [2018-04-06 21:28:59,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-04-06 21:28:59,016 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:28:59,016 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-06 21:28:59,016 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]=== [2018-04-06 21:28:59,017 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 [2018-04-06 21:28:59,024 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:28:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:28:59,047 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:28:59,053 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 [2018-04-06 21:28:59,054 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 21:28:59,064 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 [2018-04-06 21:28:59,065 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 21:28:59,073 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:28:59,074 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-06 21:28:59,096 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:28:59,098 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:28:59,099 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 [2018-04-06 21:28:59,100 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 21:28:59,126 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:28:59,128 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:28:59,129 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 [2018-04-06 21:28:59,129 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 21:28:59,147 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. [2018-04-06 21:28:59,147 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:14 [2018-04-06 21:28:59,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:28:59,166 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:28:59,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:28:59,341 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 21:28:59,341 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2018-04-06 21:28:59,343 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-06 21:28:59,343 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-06 21:28:59,343 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-06 21:28:59,343 INFO L87 Difference]: Start difference. First operand 91 states and 95 transitions. Second operand 6 states. [2018-04-06 21:28:59,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:28:59,581 INFO L93 Difference]: Finished difference Result 129 states and 136 transitions. [2018-04-06 21:28:59,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-06 21:28:59,582 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-04-06 21:28:59,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:28:59,584 INFO L225 Difference]: With dead ends: 129 [2018-04-06 21:28:59,584 INFO L226 Difference]: Without dead ends: 123 [2018-04-06 21:28:59,585 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-04-06 21:28:59,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-04-06 21:28:59,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 85. [2018-04-06 21:28:59,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-04-06 21:28:59,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2018-04-06 21:28:59,597 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 16 [2018-04-06 21:28:59,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:28:59,597 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2018-04-06 21:28:59,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-06 21:28:59,597 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2018-04-06 21:28:59,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-06 21:28:59,598 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:28:59,599 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] [2018-04-06 21:28:59,599 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]=== [2018-04-06 21:28:59,599 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 [2018-04-06 21:28:59,609 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:28:59,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:28:59,631 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:28:59,638 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 [2018-04-06 21:28:59,638 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 21:28:59,642 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:28:59,642 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-06 21:28:59,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:28:59,669 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:28:59,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:28:59,724 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 21:28:59,724 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2018-04-06 21:28:59,725 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-06 21:28:59,725 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-06 21:28:59,725 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-06 21:28:59,725 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand 6 states. [2018-04-06 21:28:59,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:28:59,791 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2018-04-06 21:28:59,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-06 21:28:59,792 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-04-06 21:28:59,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:28:59,793 INFO L225 Difference]: With dead ends: 85 [2018-04-06 21:28:59,793 INFO L226 Difference]: Without dead ends: 63 [2018-04-06 21:28:59,793 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 [2018-04-06 21:28:59,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-04-06 21:28:59,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-04-06 21:28:59,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-04-06 21:28:59,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2018-04-06 21:28:59,799 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 21 [2018-04-06 21:28:59,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:28:59,801 INFO L459 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2018-04-06 21:28:59,801 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-06 21:28:59,801 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2018-04-06 21:28:59,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-06 21:28:59,802 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:28:59,802 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] [2018-04-06 21:28:59,803 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]=== [2018-04-06 21:28:59,803 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 [2018-04-06 21:28:59,816 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:28:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:28:59,835 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:28:59,839 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 [2018-04-06 21:28:59,839 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 21:28:59,841 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:28:59,841 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-06 21:28:59,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:28:59,851 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:28:59,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:28:59,882 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 21:28:59,882 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-06 21:28:59,883 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-06 21:28:59,883 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-06 21:28:59,883 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-06 21:28:59,883 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand 4 states. [2018-04-06 21:28:59,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:28:59,951 INFO L93 Difference]: Finished difference Result 85 states and 92 transitions. [2018-04-06 21:28:59,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-06 21:28:59,951 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-04-06 21:28:59,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:28:59,952 INFO L225 Difference]: With dead ends: 85 [2018-04-06 21:28:59,952 INFO L226 Difference]: Without dead ends: 77 [2018-04-06 21:28:59,953 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 [2018-04-06 21:28:59,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-04-06 21:28:59,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 61. [2018-04-06 21:28:59,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-04-06 21:28:59,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2018-04-06 21:28:59,959 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 21 [2018-04-06 21:28:59,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:28:59,959 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2018-04-06 21:28:59,959 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-06 21:28:59,959 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2018-04-06 21:28:59,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-06 21:28:59,961 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:28:59,961 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] [2018-04-06 21:28:59,961 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]=== [2018-04-06 21:28:59,961 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 [2018-04-06 21:28:59,967 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:28:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:28:59,994 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:29:00,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:29:00,004 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:29:00,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:29:00,061 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-06 21:29:00,061 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-06 21:29:00,061 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-06 21:29:00,062 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-06 21:29:00,062 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-06 21:29:00,062 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand 6 states. [2018-04-06 21:29:00,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:29:00,088 INFO L93 Difference]: Finished difference Result 99 states and 106 transitions. [2018-04-06 21:29:00,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-06 21:29:00,090 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2018-04-06 21:29:00,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:29:00,091 INFO L225 Difference]: With dead ends: 99 [2018-04-06 21:29:00,091 INFO L226 Difference]: Without dead ends: 65 [2018-04-06 21:29:00,092 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 [2018-04-06 21:29:00,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-04-06 21:29:00,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-04-06 21:29:00,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-04-06 21:29:00,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2018-04-06 21:29:00,099 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 37 [2018-04-06 21:29:00,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:29:00,100 INFO L459 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2018-04-06 21:29:00,100 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-06 21:29:00,100 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2018-04-06 21:29:00,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-06 21:29:00,102 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:29:00,102 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] [2018-04-06 21:29:00,102 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]=== [2018-04-06 21:29:00,102 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 [2018-04-06 21:29:00,113 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:29:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:29:00,141 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:29:00,172 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:29:00,172 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:29:00,246 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:29:00,272 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 21:29:00,272 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-04-06 21:29:00,273 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-06 21:29:00,273 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-06 21:29:00,273 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-04-06 21:29:00,273 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand 9 states. [2018-04-06 21:29:00,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:29:00,337 INFO L93 Difference]: Finished difference Result 102 states and 108 transitions. [2018-04-06 21:29:00,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-06 21:29:00,337 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 43 [2018-04-06 21:29:00,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:29:00,339 INFO L225 Difference]: With dead ends: 102 [2018-04-06 21:29:00,339 INFO L226 Difference]: Without dead ends: 70 [2018-04-06 21:29:00,339 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 [2018-04-06 21:29:00,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-04-06 21:29:00,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2018-04-06 21:29:00,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-04-06 21:29:00,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2018-04-06 21:29:00,347 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 43 [2018-04-06 21:29:00,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:29:00,347 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2018-04-06 21:29:00,347 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-06 21:29:00,347 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2018-04-06 21:29:00,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-04-06 21:29:00,348 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:29:00,349 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] [2018-04-06 21:29:00,349 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]=== [2018-04-06 21:29:00,349 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 [2018-04-06 21:29:00,360 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:29:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-06 21:29:00,398 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-06 21:29:00,416 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 [2018-04-06 21:29:00,419 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 [2018-04-06 21:29:00,420 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 21:29:00,421 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:29:00,426 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:29:00,426 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2018-04-06 21:29:00,437 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 [2018-04-06 21:29:00,439 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,440 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,441 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 [2018-04-06 21:29:00,441 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 21:29:00,448 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:29:00,453 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:29:00,453 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:27, output treesize:23 [2018-04-06 21:29:00,467 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 [2018-04-06 21:29:00,470 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,471 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,472 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,472 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,473 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,473 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,474 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 [2018-04-06 21:29:00,475 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 21:29:00,484 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:29:00,490 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:29:00,490 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2018-04-06 21:29:00,506 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 [2018-04-06 21:29:00,509 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,510 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,511 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,512 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,512 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,513 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,514 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,515 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,515 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,516 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,517 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,518 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,519 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 [2018-04-06 21:29:00,520 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 21:29:00,540 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:29:00,548 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:29:00,548 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:45, output treesize:41 [2018-04-06 21:29:00,570 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 [2018-04-06 21:29:00,575 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,576 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,577 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,578 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,579 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,581 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,582 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,583 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,583 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,584 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,585 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,586 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,586 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,587 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,588 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,589 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,589 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,596 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,597 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,598 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,599 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 [2018-04-06 21:29:00,600 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 21:29:00,631 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:29:00,640 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:29:00,640 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:54, output treesize:50 [2018-04-06 21:29:00,678 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 [2018-04-06 21:29:00,683 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,683 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,684 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,685 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,685 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,686 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,686 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,687 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,688 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,688 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,689 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,689 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,690 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,691 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,691 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,692 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,692 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,693 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,694 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,694 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:00,695 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 [2018-04-06 21:29:00,696 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 21:29:00,697 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:29:00,700 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:29:00,700 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:50, output treesize:7 [2018-04-06 21:29:01,028 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 [2018-04-06 21:29:01,033 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 [2018-04-06 21:29:01,039 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,040 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,041 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 [2018-04-06 21:29:01,047 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,048 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,049 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,050 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,051 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 [2018-04-06 21:29:01,051 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-06 21:29:01,063 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:29:01,075 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:29:01,122 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:29:01,136 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. [2018-04-06 21:29:01,136 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:120, output treesize:79 [2018-04-06 21:29:01,178 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 [2018-04-06 21:29:01,189 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,190 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,191 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,192 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,192 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 [2018-04-06 21:29:01,193 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-06 21:29:01,217 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,218 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,218 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,219 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,220 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,220 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,221 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 [2018-04-06 21:29:01,222 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-06 21:29:01,240 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,241 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,242 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,243 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,243 INFO L682 Elim1Store]: detected equality via solver [2018-04-06 21:29:01,244 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,245 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,253 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,254 INFO L700 Elim1Store]: detected not equals via solver [2018-04-06 21:29:01,256 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 [2018-04-06 21:29:01,256 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-06 21:29:01,270 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:29:01,274 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:29:01,275 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:86, output treesize:3 [2018-04-06 21:29:01,310 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:29:01,311 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-06 21:29:02,025 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-06 21:29:02,025 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-06 21:29:02,026 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-06 21:29:02,026 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:129, output treesize:1 [2018-04-06 21:29:02,046 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-06 21:29:02,068 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-06 21:29:02,068 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 14] total 32 [2018-04-06 21:29:02,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-04-06 21:29:02,068 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-04-06 21:29:02,069 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=835, Unknown=0, NotChecked=0, Total=992 [2018-04-06 21:29:02,069 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand 32 states. [2018-04-06 21:29:02,944 WARN L151 SmtUtils]: Spent 147ms on a formula simplification. DAG size of input: 95 DAG size of output 91 [2018-04-06 21:29:04,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-06 21:29:04,043 INFO L93 Difference]: Finished difference Result 160 states and 168 transitions. [2018-04-06 21:29:04,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-06 21:29:04,043 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 46 [2018-04-06 21:29:04,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-06 21:29:04,046 INFO L225 Difference]: With dead ends: 160 [2018-04-06 21:29:04,046 INFO L226 Difference]: Without dead ends: 135 [2018-04-06 21:29:04,047 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 57 SyntacticMatches, 4 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 801 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=464, Invalid=2616, Unknown=0, NotChecked=0, Total=3080 [2018-04-06 21:29:04,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-04-06 21:29:04,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 82. [2018-04-06 21:29:04,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-04-06 21:29:04,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2018-04-06 21:29:04,058 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 46 [2018-04-06 21:29:04,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-06 21:29:04,059 INFO L459 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2018-04-06 21:29:04,059 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-04-06 21:29:04,059 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2018-04-06 21:29:04,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-06 21:29:04,060 INFO L347 BasicCegarLoop]: Found error trace [2018-04-06 21:29:04,061 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] [2018-04-06 21:29:04,061 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]=== [2018-04-06 21:29:04,061 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 [2018-04-06 21:29:04,067 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-06 21:29:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-06 21:29:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-06 21:29:04,165 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-06 21:29:04,185 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == dest.base && #res.offset == dest.offset; is not ensure(true) [2018-04-06 21:29:04,191 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# [2018-04-06 21:29:04,191 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# [2018-04-06 21:29:04,192 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# [2018-04-06 21:29:04,192 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# [2018-04-06 21:29:04,192 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# [2018-04-06 21:29:04,192 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# [2018-04-06 21:29:04,192 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# [2018-04-06 21:29:04,192 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# [2018-04-06 21:29:04,192 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# [2018-04-06 21:29:04,193 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# [2018-04-06 21:29:04,193 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# [2018-04-06 21:29:04,193 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# [2018-04-06 21:29:04,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 09:29:04 BoogieIcfgContainer [2018-04-06 21:29:04,202 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-06 21:29:04,202 INFO L168 Benchmark]: Toolchain (without parser) took 6463.64 ms. Allocated memory was 304.6 MB in the beginning and 549.5 MB in the end (delta: 244.8 MB). Free memory was 248.5 MB in the beginning and 478.1 MB in the end (delta: -229.6 MB). Peak memory consumption was 15.2 MB. Max. memory is 5.3 GB. [2018-04-06 21:29:04,203 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 304.6 MB. Free memory is still 266.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-06 21:29:04,203 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.79 ms. Allocated memory is still 304.6 MB. Free memory was 248.5 MB in the beginning and 237.5 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 5.3 GB. [2018-04-06 21:29:04,204 INFO L168 Benchmark]: Boogie Preprocessor took 41.56 ms. Allocated memory is still 304.6 MB. Free memory was 237.5 MB in the beginning and 236.5 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 5.3 GB. [2018-04-06 21:29:04,204 INFO L168 Benchmark]: RCFGBuilder took 475.50 ms. Allocated memory was 304.6 MB in the beginning and 465.6 MB in the end (delta: 161.0 MB). Free memory was 235.5 MB in the beginning and 423.4 MB in the end (delta: -187.9 MB). Peak memory consumption was 24.6 MB. Max. memory is 5.3 GB. [2018-04-06 21:29:04,204 INFO L168 Benchmark]: TraceAbstraction took 5709.24 ms. Allocated memory was 465.6 MB in the beginning and 549.5 MB in the end (delta: 83.9 MB). Free memory was 423.4 MB in the beginning and 478.1 MB in the end (delta: -54.7 MB). Peak memory consumption was 29.2 MB. Max. memory is 5.3 GB. [2018-04-06 21:29:04,207 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 304.6 MB. Free memory is still 266.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 232.79 ms. Allocated memory is still 304.6 MB. Free memory was 248.5 MB in the beginning and 237.5 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 41.56 ms. Allocated memory is still 304.6 MB. Free memory was 237.5 MB in the beginning and 236.5 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 5.3 GB. * RCFGBuilder took 475.50 ms. Allocated memory was 304.6 MB in the beginning and 465.6 MB in the end (delta: 161.0 MB). Free memory was 235.5 MB in the beginning and 423.4 MB in the end (delta: -187.9 MB). Peak memory consumption was 24.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 5709.24 ms. Allocated memory was 465.6 MB in the beginning and 549.5 MB in the end (delta: 83.9 MB). Free memory was 423.4 MB in the beginning and 478.1 MB in the end (delta: -54.7 MB). Peak memory consumption was 29.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == dest.base && #res.offset == dest.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 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 28 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 27 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 27 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 28 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 27 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 28 could not be translated for associated CType STRUCT#?a~UCHAR?b~UCHAR?c~UCHAR?d~UCHAR?e~UCHAR# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 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, 5.6s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 2.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 348 SDtfs, 1040 SDslu, 921 SDs, 0 SdLazy, 902 SolverSat, 185 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 422 GetRequests, 332 SyntacticMatches, 9 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 810 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 147 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 249 NumberOfCodeBlocks, 249 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 386 ConstructedInterpolants, 36 QuantifiedInterpolants, 209573 SizeOfPredicates, 23 NumberOfNonLiveVariables, 722 ConjunctsInSsa, 71 ConjunctsInUnsatCore, 14 InterpolantComputations, 10 PerfectInterpolantSequences, 0/34 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-bitfields-2.1_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-06_21-29-04-214.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-0-2018-04-06_21-29-04-214.csv Received shutdown request...