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-3_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-4cf2d92 [2018-03-28 13:24:45,079 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-28 13:24:45,081 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-28 13:24:45,095 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-28 13:24:45,095 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-28 13:24:45,096 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-28 13:24:45,097 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-28 13:24:45,099 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-28 13:24:45,101 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-28 13:24:45,102 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-28 13:24:45,102 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-28 13:24:45,103 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-28 13:24:45,103 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-28 13:24:45,105 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-28 13:24:45,105 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-28 13:24:45,107 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-28 13:24:45,109 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-28 13:24:45,111 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-28 13:24:45,112 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-28 13:24:45,113 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-28 13:24:45,115 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-28 13:24:45,116 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-28 13:24:45,116 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-28 13:24:45,117 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-28 13:24:45,118 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-28 13:24:45,119 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-28 13:24:45,119 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-28 13:24:45,120 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-28 13:24:45,121 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-28 13:24:45,121 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-28 13:24:45,122 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-28 13:24:45,122 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-03-28 13:24:45,145 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-28 13:24:45,145 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-28 13:24:45,146 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-03-28 13:24:45,146 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-03-28 13:24:45,146 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-28 13:24:45,147 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-28 13:24:45,147 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-28 13:24:45,147 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-28 13:24:45,147 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-28 13:24:45,148 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-03-28 13:24:45,148 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-03-28 13:24:45,148 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-28 13:24:45,148 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-28 13:24:45,148 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-28 13:24:45,148 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-28 13:24:45,149 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-28 13:24:45,149 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-28 13:24:45,149 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-28 13:24:45,149 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-28 13:24:45,149 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-28 13:24:45,150 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-28 13:24:45,150 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-28 13:24:45,150 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-28 13:24:45,150 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-28 13:24:45,150 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-28 13:24:45,150 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-28 13:24:45,151 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-28 13:24:45,151 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-28 13:24:45,151 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-28 13:24:45,151 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-28 13:24:45,151 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-28 13:24:45,152 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:24:45,152 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-28 13:24:45,152 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-28 13:24:45,153 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-28 13:24:45,153 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-03-28 13:24:45,153 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-03-28 13:24:45,185 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-28 13:24:45,197 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-28 13:24:45,201 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-28 13:24:45,202 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-28 13:24:45,203 INFO L276 PluginConnector]: CDTParser initialized [2018-03-28 13:24:45,204 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety-bitfields/test-bitfields-3_false-valid-deref.i [2018-03-28 13:24:45,511 INFO L228 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG1689b0916 [2018-03-28 13:24:45,643 INFO L291 CDTParser]: IsIndexed: true [2018-03-28 13:24:45,644 INFO L292 CDTParser]: Found 1 translation units. [2018-03-28 13:24:45,644 INFO L171 CDTParser]: Scanning test-bitfields-3_false-valid-deref.i [2018-03-28 13:24:45,645 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-28 13:24:45,645 INFO L215 ultiparseSymbolTable]: [2018-03-28 13:24:45,646 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-28 13:24:45,646 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in test-bitfields-3_false-valid-deref.i [2018-03-28 13:24:45,646 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-28 13:24:45,646 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest_bitfields___false_valid_deref_i__size_t in test-bitfields-3_false-valid-deref.i [2018-03-28 13:24:45,646 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_ftest_bitfields___false_valid_deref_i__d in test-bitfields-3_false-valid-deref.i [2018-03-28 13:24:45,665 INFO L334 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG1689b0916 [2018-03-28 13:24:45,670 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-28 13:24:45,674 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-28 13:24:45,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-28 13:24:45,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-28 13:24:45,682 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-28 13:24:45,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 01:24:45" (1/1) ... [2018-03-28 13:24:45,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d059da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:24:45, skipping insertion in model container [2018-03-28 13:24:45,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 01:24:45" (1/1) ... [2018-03-28 13:24:45,706 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-28 13:24:45,720 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-28 13:24:45,876 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-28 13:24:45,909 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-28 13:24:45,916 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 12 non ball SCCs. Number of states in SCCs 12. [2018-03-28 13:24:45,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:24:45 WrapperNode [2018-03-28 13:24:45,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-28 13:24:45,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-28 13:24:45,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-28 13:24:45,930 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-28 13:24:45,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:24:45" (1/1) ... [2018-03-28 13:24:45,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:24:45" (1/1) ... [2018-03-28 13:24:45,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:24:45" (1/1) ... [2018-03-28 13:24:45,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:24:45" (1/1) ... [2018-03-28 13:24:45,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:24:45" (1/1) ... [2018-03-28 13:24:45,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:24:45" (1/1) ... [2018-03-28 13:24:45,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:24:45" (1/1) ... [2018-03-28 13:24:45,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-28 13:24:45,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-28 13:24:45,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-28 13:24:45,965 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-28 13:24:45,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:24:45" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-28 13:24:46,020 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-28 13:24:46,020 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-28 13:24:46,021 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-28 13:24:46,021 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2018-03-28 13:24:46,021 INFO L128 BoogieDeclarations]: Found specification of procedure memcpy [2018-03-28 13:24:46,021 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-03-28 13:24:46,021 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-03-28 13:24:46,021 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-28 13:24:46,021 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-28 13:24:46,021 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2018-03-28 13:24:46,021 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-28 13:24:46,021 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-28 13:24:46,022 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-28 13:24:46,022 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-28 13:24:46,022 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-28 13:24:46,022 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-28 13:24:46,507 WARN L446 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-03-28 13:24:46,522 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-28 13:24:46,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 01:24:46 BoogieIcfgContainer [2018-03-28 13:24:46,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-28 13:24:46,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-28 13:24:46,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-28 13:24:46,526 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-28 13:24:46,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 01:24:45" (1/3) ... [2018-03-28 13:24:46,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19bbf733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 01:24:46, skipping insertion in model container [2018-03-28 13:24:46,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 01:24:45" (2/3) ... [2018-03-28 13:24:46,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19bbf733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 01:24:46, skipping insertion in model container [2018-03-28 13:24:46,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 01:24:46" (3/3) ... [2018-03-28 13:24:46,529 INFO L107 eAbstractionObserver]: Analyzing ICFG test-bitfields-3_false-valid-deref.i [2018-03-28 13:24:46,536 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-28 13:24:46,543 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 47 error locations. [2018-03-28 13:24:46,588 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-28 13:24:46,588 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-28 13:24:46,588 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-28 13:24:46,589 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-28 13:24:46,589 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-28 13:24:46,589 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-28 13:24:46,589 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-28 13:24:46,589 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-28 13:24:46,590 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-28 13:24:46,591 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-28 13:24:46,608 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states. [2018-03-28 13:24:46,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-03-28 13:24:46,614 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:24:46,615 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:24:46,616 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr14AssertViolationMEMORY_FREE, mainErr33RequiresViolation, mainErr10AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr7AssertViolationMEMORY_FREE, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr19AssertViolationMEMORY_FREE, mainErr18AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr38AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr46EnsuresViolationMEMORY_LEAK, mainErr42AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr45AssertViolationMEMORY_FREE, mainErr22AssertViolationMEMORY_FREE, mainErr34AssertViolationMEMORY_FREE, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr43AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr44AssertViolationMEMORY_FREE, mainErr15AssertViolationMEMORY_FREE, mainErr39AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-03-28 13:24:46,621 INFO L82 PathProgramCache]: Analyzing trace with hash 2078970878, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:24:46,632 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:24:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:24:46,678 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:24:46,724 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 13:24:46,726 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:24:46,736 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:24:46,736 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-28 13:24:46,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:24:46,755 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:24:46,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:24:46,791 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:24:46,791 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-28 13:24:46,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-28 13:24:46,803 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-28 13:24:46,804 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-28 13:24:46,805 INFO L87 Difference]: Start difference. First operand 153 states. Second operand 4 states. [2018-03-28 13:24:47,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:24:47,123 INFO L93 Difference]: Finished difference Result 268 states and 305 transitions. [2018-03-28 13:24:47,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-03-28 13:24:47,124 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-03-28 13:24:47,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:24:47,138 INFO L225 Difference]: With dead ends: 268 [2018-03-28 13:24:47,138 INFO L226 Difference]: Without dead ends: 243 [2018-03-28 13:24:47,141 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-28 13:24:47,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2018-03-28 13:24:47,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 149. [2018-03-28 13:24:47,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-03-28 13:24:47,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 169 transitions. [2018-03-28 13:24:47,185 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 169 transitions. Word has length 18 [2018-03-28 13:24:47,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:24:47,187 INFO L459 AbstractCegarLoop]: Abstraction has 149 states and 169 transitions. [2018-03-28 13:24:47,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-28 13:24:47,187 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 169 transitions. [2018-03-28 13:24:47,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-03-28 13:24:47,188 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:24:47,188 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:24:47,188 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr14AssertViolationMEMORY_FREE, mainErr33RequiresViolation, mainErr10AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr7AssertViolationMEMORY_FREE, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr19AssertViolationMEMORY_FREE, mainErr18AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr38AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr46EnsuresViolationMEMORY_LEAK, mainErr42AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr45AssertViolationMEMORY_FREE, mainErr22AssertViolationMEMORY_FREE, mainErr34AssertViolationMEMORY_FREE, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr43AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr44AssertViolationMEMORY_FREE, mainErr15AssertViolationMEMORY_FREE, mainErr39AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-03-28 13:24:47,188 INFO L82 PathProgramCache]: Analyzing trace with hash 2078970879, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:24:47,202 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:24:47,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:24:47,223 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:24:47,227 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 13:24:47,227 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:24:47,230 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:24:47,230 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-28 13:24:47,254 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-03-28 13:24:47,255 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:24:47,260 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 13:24:47,261 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-03-28 13:24:47,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:24:47,280 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:24:47,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:24:47,332 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:24:47,332 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-03-28 13:24:47,334 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-03-28 13:24:47,334 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-03-28 13:24:47,334 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-28 13:24:47,334 INFO L87 Difference]: Start difference. First operand 149 states and 169 transitions. Second operand 3 states. [2018-03-28 13:24:47,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:24:47,446 INFO L93 Difference]: Finished difference Result 233 states and 261 transitions. [2018-03-28 13:24:47,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-28 13:24:47,447 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-03-28 13:24:47,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:24:47,449 INFO L225 Difference]: With dead ends: 233 [2018-03-28 13:24:47,449 INFO L226 Difference]: Without dead ends: 232 [2018-03-28 13:24:47,450 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-03-28 13:24:47,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2018-03-28 13:24:47,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 148. [2018-03-28 13:24:47,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-03-28 13:24:47,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 168 transitions. [2018-03-28 13:24:47,462 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 168 transitions. Word has length 18 [2018-03-28 13:24:47,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:24:47,463 INFO L459 AbstractCegarLoop]: Abstraction has 148 states and 168 transitions. [2018-03-28 13:24:47,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-03-28 13:24:47,463 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 168 transitions. [2018-03-28 13:24:47,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-03-28 13:24:47,464 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:24:47,464 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:24:47,464 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr14AssertViolationMEMORY_FREE, mainErr33RequiresViolation, mainErr10AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr7AssertViolationMEMORY_FREE, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr19AssertViolationMEMORY_FREE, mainErr18AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr38AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr46EnsuresViolationMEMORY_LEAK, mainErr42AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr45AssertViolationMEMORY_FREE, mainErr22AssertViolationMEMORY_FREE, mainErr34AssertViolationMEMORY_FREE, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr43AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr44AssertViolationMEMORY_FREE, mainErr15AssertViolationMEMORY_FREE, mainErr39AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-03-28 13:24:47,464 INFO L82 PathProgramCache]: Analyzing trace with hash 2078970880, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:24:47,480 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:24:47,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:24:47,503 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:24:47,512 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 13:24:47,512 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:24:47,552 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:24:47,552 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-28 13:24:47,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:24:47,583 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:24:47,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:24:47,643 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:24:47,643 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2018-03-28 13:24:47,643 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-03-28 13:24:47,644 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-03-28 13:24:47,644 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-03-28 13:24:47,644 INFO L87 Difference]: Start difference. First operand 148 states and 168 transitions. Second operand 6 states. [2018-03-28 13:24:47,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:24:47,767 INFO L93 Difference]: Finished difference Result 148 states and 168 transitions. [2018-03-28 13:24:47,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-28 13:24:47,768 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-03-28 13:24:47,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:24:47,769 INFO L225 Difference]: With dead ends: 148 [2018-03-28 13:24:47,770 INFO L226 Difference]: Without dead ends: 126 [2018-03-28 13:24:47,770 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-03-28 13:24:47,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-03-28 13:24:47,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2018-03-28 13:24:47,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-03-28 13:24:47,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 136 transitions. [2018-03-28 13:24:47,780 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 136 transitions. Word has length 18 [2018-03-28 13:24:47,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:24:47,781 INFO L459 AbstractCegarLoop]: Abstraction has 126 states and 136 transitions. [2018-03-28 13:24:47,781 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-03-28 13:24:47,781 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 136 transitions. [2018-03-28 13:24:47,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-03-28 13:24:47,782 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:24:47,782 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:24:47,782 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr14AssertViolationMEMORY_FREE, mainErr33RequiresViolation, mainErr10AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr7AssertViolationMEMORY_FREE, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr19AssertViolationMEMORY_FREE, mainErr18AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr38AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr46EnsuresViolationMEMORY_LEAK, mainErr42AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr45AssertViolationMEMORY_FREE, mainErr22AssertViolationMEMORY_FREE, mainErr34AssertViolationMEMORY_FREE, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr43AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr44AssertViolationMEMORY_FREE, mainErr15AssertViolationMEMORY_FREE, mainErr39AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-03-28 13:24:47,783 INFO L82 PathProgramCache]: Analyzing trace with hash 2078970881, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:24:47,798 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:24:47,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:24:47,814 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:24:47,826 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-03-28 13:24:47,826 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:24:47,837 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:24:47,838 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-28 13:24:47,854 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-03-28 13:24:47,855 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-28 13:24:47,863 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-28 13:24:47,863 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2018-03-28 13:24:47,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:24:47,868 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:24:48,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:24:48,215 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:24:48,215 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2018-03-28 13:24:48,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-03-28 13:24:48,215 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-03-28 13:24:48,215 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=10, Unknown=1, NotChecked=0, Total=20 [2018-03-28 13:24:48,216 INFO L87 Difference]: Start difference. First operand 126 states and 136 transitions. Second operand 5 states. [2018-03-28 13:24:48,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:24:48,277 INFO L93 Difference]: Finished difference Result 126 states and 136 transitions. [2018-03-28 13:24:48,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-03-28 13:24:48,277 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-03-28 13:24:48,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:24:48,279 INFO L225 Difference]: With dead ends: 126 [2018-03-28 13:24:48,279 INFO L226 Difference]: Without dead ends: 125 [2018-03-28 13:24:48,279 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=10, Unknown=1, NotChecked=0, Total=20 [2018-03-28 13:24:48,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-03-28 13:24:48,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2018-03-28 13:24:48,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-03-28 13:24:48,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 135 transitions. [2018-03-28 13:24:48,289 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 135 transitions. Word has length 18 [2018-03-28 13:24:48,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:24:48,289 INFO L459 AbstractCegarLoop]: Abstraction has 125 states and 135 transitions. [2018-03-28 13:24:48,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-03-28 13:24:48,289 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 135 transitions. [2018-03-28 13:24:48,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-03-28 13:24:48,290 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:24:48,291 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] [2018-03-28 13:24:48,291 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr14AssertViolationMEMORY_FREE, mainErr33RequiresViolation, mainErr10AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr7AssertViolationMEMORY_FREE, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr19AssertViolationMEMORY_FREE, mainErr18AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr38AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr46EnsuresViolationMEMORY_LEAK, mainErr42AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr45AssertViolationMEMORY_FREE, mainErr22AssertViolationMEMORY_FREE, mainErr34AssertViolationMEMORY_FREE, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr43AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr44AssertViolationMEMORY_FREE, mainErr15AssertViolationMEMORY_FREE, mainErr39AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-03-28 13:24:48,291 INFO L82 PathProgramCache]: Analyzing trace with hash 2009038742, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:24:48,298 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:24:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:24:48,318 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:24:48,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:24:48,381 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:24:48,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:24:48,444 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-28 13:24:48,444 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-03-28 13:24:48,444 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-03-28 13:24:48,444 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-03-28 13:24:48,444 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-03-28 13:24:48,445 INFO L87 Difference]: Start difference. First operand 125 states and 135 transitions. Second operand 6 states. [2018-03-28 13:24:48,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:24:48,479 INFO L93 Difference]: Finished difference Result 230 states and 251 transitions. [2018-03-28 13:24:48,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-28 13:24:48,479 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2018-03-28 13:24:48,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:24:48,481 INFO L225 Difference]: With dead ends: 230 [2018-03-28 13:24:48,481 INFO L226 Difference]: Without dead ends: 129 [2018-03-28 13:24:48,482 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-03-28 13:24:48,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-03-28 13:24:48,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2018-03-28 13:24:48,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-03-28 13:24:48,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 139 transitions. [2018-03-28 13:24:48,490 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 139 transitions. Word has length 34 [2018-03-28 13:24:48,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:24:48,491 INFO L459 AbstractCegarLoop]: Abstraction has 129 states and 139 transitions. [2018-03-28 13:24:48,491 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-03-28 13:24:48,491 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 139 transitions. [2018-03-28 13:24:48,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-03-28 13:24:48,492 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:24:48,493 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] [2018-03-28 13:24:48,493 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr14AssertViolationMEMORY_FREE, mainErr33RequiresViolation, mainErr10AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr7AssertViolationMEMORY_FREE, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr19AssertViolationMEMORY_FREE, mainErr18AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr38AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr46EnsuresViolationMEMORY_LEAK, mainErr42AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr45AssertViolationMEMORY_FREE, mainErr22AssertViolationMEMORY_FREE, mainErr34AssertViolationMEMORY_FREE, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr43AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr44AssertViolationMEMORY_FREE, mainErr15AssertViolationMEMORY_FREE, mainErr39AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-03-28 13:24:48,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1651014666, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:24:48,504 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:24:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:24:48,529 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:24:48,551 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:24:48,551 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:24:48,634 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:24:48,656 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:24:48,657 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-03-28 13:24:48,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-03-28 13:24:48,657 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-03-28 13:24:48,658 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-03-28 13:24:48,658 INFO L87 Difference]: Start difference. First operand 129 states and 139 transitions. Second operand 10 states. [2018-03-28 13:24:48,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:24:48,728 INFO L93 Difference]: Finished difference Result 242 states and 265 transitions. [2018-03-28 13:24:48,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-03-28 13:24:48,728 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 40 [2018-03-28 13:24:48,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:24:48,729 INFO L225 Difference]: With dead ends: 242 [2018-03-28 13:24:48,729 INFO L226 Difference]: Without dead ends: 141 [2018-03-28 13:24:48,730 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2018-03-28 13:24:48,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-03-28 13:24:48,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2018-03-28 13:24:48,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-03-28 13:24:48,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 151 transitions. [2018-03-28 13:24:48,739 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 151 transitions. Word has length 40 [2018-03-28 13:24:48,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:24:48,739 INFO L459 AbstractCegarLoop]: Abstraction has 141 states and 151 transitions. [2018-03-28 13:24:48,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-03-28 13:24:48,739 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 151 transitions. [2018-03-28 13:24:48,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-03-28 13:24:48,741 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:24:48,741 INFO L355 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:24:48,741 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr14AssertViolationMEMORY_FREE, mainErr33RequiresViolation, mainErr10AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr7AssertViolationMEMORY_FREE, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr19AssertViolationMEMORY_FREE, mainErr18AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr38AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr46EnsuresViolationMEMORY_LEAK, mainErr42AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr45AssertViolationMEMORY_FREE, mainErr22AssertViolationMEMORY_FREE, mainErr34AssertViolationMEMORY_FREE, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr43AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr44AssertViolationMEMORY_FREE, mainErr15AssertViolationMEMORY_FREE, mainErr39AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-03-28 13:24:48,741 INFO L82 PathProgramCache]: Analyzing trace with hash 264713398, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:24:48,748 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:24:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:24:48,771 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:24:48,809 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:24:48,809 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-28 13:24:48,941 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-28 13:24:48,962 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-28 13:24:48,963 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2018-03-28 13:24:48,963 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-03-28 13:24:48,963 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-03-28 13:24:48,963 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=173, Unknown=0, NotChecked=0, Total=306 [2018-03-28 13:24:48,964 INFO L87 Difference]: Start difference. First operand 141 states and 151 transitions. Second operand 18 states. [2018-03-28 13:24:49,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-28 13:24:49,031 INFO L93 Difference]: Finished difference Result 254 states and 277 transitions. [2018-03-28 13:24:49,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-03-28 13:24:49,032 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 52 [2018-03-28 13:24:49,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-28 13:24:49,034 INFO L225 Difference]: With dead ends: 254 [2018-03-28 13:24:49,034 INFO L226 Difference]: Without dead ends: 153 [2018-03-28 13:24:49,035 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=145, Invalid=197, Unknown=0, NotChecked=0, Total=342 [2018-03-28 13:24:49,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-03-28 13:24:49,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2018-03-28 13:24:49,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-03-28 13:24:49,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 163 transitions. [2018-03-28 13:24:49,044 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 163 transitions. Word has length 52 [2018-03-28 13:24:49,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-28 13:24:49,045 INFO L459 AbstractCegarLoop]: Abstraction has 153 states and 163 transitions. [2018-03-28 13:24:49,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-03-28 13:24:49,045 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 163 transitions. [2018-03-28 13:24:49,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-03-28 13:24:49,047 INFO L347 BasicCegarLoop]: Found error trace [2018-03-28 13:24:49,047 INFO L355 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-28 13:24:49,047 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr6AssertViolationMEMORY_FREE, mainErr28RequiresViolation, mainErr14AssertViolationMEMORY_FREE, mainErr33RequiresViolation, mainErr10AssertViolationMEMORY_FREE, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr35AssertViolationMEMORY_FREE, mainErr7AssertViolationMEMORY_FREE, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr19AssertViolationMEMORY_FREE, mainErr18AssertViolationMEMORY_FREE, mainErr32RequiresViolation, mainErr1RequiresViolation, mainErr30AssertViolationMEMORY_FREE, mainErr17RequiresViolation, mainErr23AssertViolationMEMORY_FREE, mainErr38AssertViolationMEMORY_FREE, mainErr9RequiresViolation, mainErr46EnsuresViolationMEMORY_LEAK, mainErr42AssertViolationMEMORY_FREE, mainErr11AssertViolationMEMORY_FREE, mainErr45AssertViolationMEMORY_FREE, mainErr22AssertViolationMEMORY_FREE, mainErr34AssertViolationMEMORY_FREE, mainErr20RequiresViolation, mainErr31AssertViolationMEMORY_FREE, mainErr24RequiresViolation, mainErr26AssertViolationMEMORY_FREE, mainErr8RequiresViolation, mainErr43AssertViolationMEMORY_FREE, mainErr4RequiresViolation, mainErr44AssertViolationMEMORY_FREE, mainErr15AssertViolationMEMORY_FREE, mainErr39AssertViolationMEMORY_FREE, mainErr27AssertViolationMEMORY_FREE, mainErr37RequiresViolation, mainErr40RequiresViolation]=== [2018-03-28 13:24:49,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1439447690, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-28 13:24:49,058 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-28 13:24:49,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-28 13:24:49,115 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-28 13:24:49,127 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-03-28 13:24:49,129 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-03-28 13:24:49,129 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,130 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,133 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,133 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2018-03-28 13:24:49,141 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-03-28 13:24:49,143 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,143 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,144 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 31 [2018-03-28 13:24:49,145 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,149 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,154 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,154 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:24, output treesize:20 [2018-03-28 13:24:49,164 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2018-03-28 13:24:49,167 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,168 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,168 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,169 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,170 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 60 [2018-03-28 13:24:49,170 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,178 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,183 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,183 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:33, output treesize:29 [2018-03-28 13:24:49,196 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 30 [2018-03-28 13:24:49,199 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,200 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,201 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,201 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,202 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,202 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,203 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,204 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 93 [2018-03-28 13:24:49,204 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,216 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,222 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,223 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:42, output treesize:38 [2018-03-28 13:24:49,241 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 37 [2018-03-28 13:24:49,247 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,248 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,249 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,250 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,251 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,251 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,252 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,252 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,253 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,253 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,254 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,255 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 132 [2018-03-28 13:24:49,256 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,273 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,281 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,282 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:51, output treesize:47 [2018-03-28 13:24:49,301 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 57 treesize of output 44 [2018-03-28 13:24:49,318 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,320 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,321 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,322 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,323 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,323 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,324 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,325 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,326 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,326 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,327 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,328 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,328 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,329 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,330 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,331 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,332 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 179 [2018-03-28 13:24:49,333 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,382 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,444 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,444 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:60, output treesize:56 [2018-03-28 13:24:49,530 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 66 treesize of output 51 [2018-03-28 13:24:49,535 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,537 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,538 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,542 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,543 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,544 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,545 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,546 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,547 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,547 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,548 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,549 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,550 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,550 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,551 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,552 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,553 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,553 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,554 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,555 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,555 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,556 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,558 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 22 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 234 [2018-03-28 13:24:49,559 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,599 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,615 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,615 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2018-03-28 13:24:49,707 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 62 treesize of output 48 [2018-03-28 13:24:49,710 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,711 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,712 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,720 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,721 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,722 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,723 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,723 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,724 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,725 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,725 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,726 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,727 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,727 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,728 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,728 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,729 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,730 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,730 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,731 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,731 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,732 INFO L700 Elim1Store]: detected not equals via solver [2018-03-28 13:24:49,734 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 164 [2018-03-28 13:24:49,735 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,736 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,739 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-28 13:24:49,740 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:68, output treesize:7 [2018-03-28 13:24:51,301 WARN L148 SmtUtils]: Spent 110ms on a formula simplification that was a NOOP. DAG size: 61 [2018-03-28 13:24:52,219 WARN L148 SmtUtils]: Spent 154ms on a formula simplification that was a NOOP. DAG size: 68 [2018-03-28 13:24:53,253 WARN L148 SmtUtils]: Spent 119ms on a formula simplification that was a NOOP. DAG size: 79 [2018-03-28 13:25:02,286 WARN L148 SmtUtils]: Spent 107ms on a formula simplification that was a NOOP. DAG size: 82 [2018-03-28 13:25:13,488 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-03-28 13:25:13,489 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:226) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:154) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.checkSat(DiffWrapperScript.java:205) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:1072) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:946) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:355) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:573) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:445) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:237) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:185) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedRefinementStrategy.getTraceCheck(FixedRefinementStrategy.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:408) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:417) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:363) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) ... 39 more [2018-03-28 13:25:13,492 INFO L168 Benchmark]: Toolchain (without parser) took 27821.45 ms. Allocated memory was 303.6 MB in the beginning and 519.0 MB in the end (delta: 215.5 MB). Free memory was 245.4 MB in the beginning and 327.7 MB in the end (delta: -82.3 MB). Peak memory consumption was 133.2 MB. Max. memory is 5.3 GB. [2018-03-28 13:25:13,493 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 303.6 MB. Free memory is still 263.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-28 13:25:13,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.10 ms. Allocated memory is still 303.6 MB. Free memory was 244.4 MB in the beginning and 234.3 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-03-28 13:25:13,493 INFO L168 Benchmark]: Boogie Preprocessor took 34.75 ms. Allocated memory is still 303.6 MB. Free memory was 234.3 MB in the beginning and 232.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-03-28 13:25:13,494 INFO L168 Benchmark]: RCFGBuilder took 557.33 ms. Allocated memory was 303.6 MB in the beginning and 468.7 MB in the end (delta: 165.2 MB). Free memory was 232.3 MB in the beginning and 419.6 MB in the end (delta: -187.4 MB). Peak memory consumption was 22.7 MB. Max. memory is 5.3 GB. [2018-03-28 13:25:13,494 INFO L168 Benchmark]: TraceAbstraction took 26967.68 ms. Allocated memory was 468.7 MB in the beginning and 519.0 MB in the end (delta: 50.3 MB). Free memory was 418.3 MB in the beginning and 327.7 MB in the end (delta: 90.6 MB). Peak memory consumption was 141.0 MB. Max. memory is 5.3 GB. [2018-03-28 13:25:13,497 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 303.6 MB. Free memory is still 263.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 255.10 ms. Allocated memory is still 303.6 MB. Free memory was 244.4 MB in the beginning and 234.3 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 34.75 ms. Allocated memory is still 303.6 MB. Free memory was 234.3 MB in the beginning and 232.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 557.33 ms. Allocated memory was 303.6 MB in the beginning and 468.7 MB in the end (delta: 165.2 MB). Free memory was 232.3 MB in the beginning and 419.6 MB in the end (delta: -187.4 MB). Peak memory consumption was 22.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 26967.68 ms. Allocated memory was 468.7 MB in the beginning and 519.0 MB in the end (delta: 50.3 MB). Free memory was 418.3 MB in the beginning and 327.7 MB in the end (delta: 90.6 MB). Peak memory consumption was 141.0 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-bitfields-3_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-28_13-25-13-507.csv Received shutdown request...