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/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf -i ../../../trunk/examples/svcomp/memsafety-ext2/split_list_test05_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 02:26:06,636 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 02:26:06,637 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 02:26:06,649 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 02:26:06,649 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 02:26:06,650 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 02:26:06,650 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 02:26:06,652 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 02:26:06,653 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 02:26:06,654 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 02:26:06,655 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 02:26:06,655 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 02:26:06,656 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 02:26:06,657 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 02:26:06,657 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 02:26:06,659 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 02:26:06,661 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 02:26:06,662 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 02:26:06,663 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 02:26:06,664 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 02:26:06,665 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 02:26:06,666 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 02:26:06,666 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 02:26:06,667 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 02:26:06,667 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 02:26:06,668 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 02:26:06,668 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 02:26:06,669 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 02:26:06,669 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 02:26:06,669 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 02:26:06,669 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 02:26:06,669 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf [2018-02-04 02:26:06,678 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 02:26:06,679 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 02:26:06,679 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 02:26:06,679 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 02:26:06,680 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 02:26:06,680 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 02:26:06,680 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 02:26:06,680 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 02:26:06,680 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 02:26:06,680 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 02:26:06,680 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 02:26:06,680 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 02:26:06,680 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 02:26:06,680 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 02:26:06,681 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 02:26:06,681 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 02:26:06,681 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 02:26:06,681 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 02:26:06,681 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 02:26:06,681 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 02:26:06,681 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 02:26:06,681 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 02:26:06,681 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-02-04 02:26:06,709 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 02:26:06,716 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 02:26:06,718 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 02:26:06,719 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 02:26:06,719 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 02:26:06,719 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety-ext2/split_list_test05_false-valid-deref.i [2018-02-04 02:26:06,841 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 02:26:06,842 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 02:26:06,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 02:26:06,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 02:26:06,849 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 02:26:06,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 02:26:06" (1/1) ... [2018-02-04 02:26:06,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ca510de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 02:26:06, skipping insertion in model container [2018-02-04 02:26:06,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 02:26:06" (1/1) ... [2018-02-04 02:26:06,865 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 02:26:06,893 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 02:26:06,985 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 02:26:07,009 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 02:26:07,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 02:26:07 WrapperNode [2018-02-04 02:26:07,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 02:26:07,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 02:26:07,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 02:26:07,019 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 02:26:07,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 02:26:07" (1/1) ... [2018-02-04 02:26:07,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 02:26:07" (1/1) ... [2018-02-04 02:26:07,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 02:26:07" (1/1) ... [2018-02-04 02:26:07,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 02:26:07" (1/1) ... [2018-02-04 02:26:07,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 02:26:07" (1/1) ... [2018-02-04 02:26:07,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 02:26:07" (1/1) ... [2018-02-04 02:26:07,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 02:26:07" (1/1) ... [2018-02-04 02:26:07,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 02:26:07,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 02:26:07,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 02:26:07,058 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 02:26:07,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 02:26:07" (1/1) ... No working directory specified, using /home/ultimate/work/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 [2018-02-04 02:26:07,095 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 02:26:07,095 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 02:26:07,096 INFO L136 BoogieDeclarations]: Found implementation of procedure containsHead [2018-02-04 02:26:07,096 INFO L136 BoogieDeclarations]: Found implementation of procedure containsBody [2018-02-04 02:26:07,096 INFO L136 BoogieDeclarations]: Found implementation of procedure append [2018-02-04 02:26:07,096 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 02:26:07,096 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 02:26:07,096 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 02:26:07,096 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 02:26:07,096 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 02:26:07,096 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 02:26:07,096 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 02:26:07,096 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 02:26:07,096 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 02:26:07,096 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2018-02-04 02:26:07,097 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 02:26:07,097 INFO L128 BoogieDeclarations]: Found specification of procedure containsHead [2018-02-04 02:26:07,097 INFO L128 BoogieDeclarations]: Found specification of procedure containsBody [2018-02-04 02:26:07,097 INFO L128 BoogieDeclarations]: Found specification of procedure append [2018-02-04 02:26:07,097 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 02:26:07,097 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 02:26:07,097 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 02:26:07,683 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 02:26:07,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 02:26:07 BoogieIcfgContainer [2018-02-04 02:26:07,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 02:26:07,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 02:26:07,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 02:26:07,686 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 02:26:07,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 02:26:06" (1/3) ... [2018-02-04 02:26:07,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75455f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 02:26:07, skipping insertion in model container [2018-02-04 02:26:07,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 02:26:07" (2/3) ... [2018-02-04 02:26:07,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75455f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 02:26:07, skipping insertion in model container [2018-02-04 02:26:07,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 02:26:07" (3/3) ... [2018-02-04 02:26:07,688 INFO L107 eAbstractionObserver]: Analyzing ICFG split_list_test05_false-valid-deref.i [2018-02-04 02:26:07,693 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 02:26:07,698 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 141 error locations. [2018-02-04 02:26:07,721 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 02:26:07,721 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 02:26:07,721 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-02-04 02:26:07,721 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 02:26:07,721 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 02:26:07,721 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 02:26:07,722 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 02:26:07,722 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 02:26:07,722 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 02:26:07,735 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states. [2018-02-04 02:26:07,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 02:26:07,743 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 02:26:07,744 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 02:26:07,744 INFO L371 AbstractCegarLoop]: === Iteration 1 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-02-04 02:26:07,747 INFO L82 PathProgramCache]: Analyzing trace with hash 479486545, now seen corresponding path program 1 times [2018-02-04 02:26:07,780 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 02:26:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 02:26:07,806 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 02:26:07,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:07,845 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 02:26:07,846 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 02:26:07,847 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 02:26:07,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:07,848 INFO L182 omatonBuilderFactory]: Interpolants [336#false, 337#(= 1 (select |#valid| |main_#t~malloc67.base|)), 338#(= 1 (select |#valid| main_~list~0.base)), 335#true] [2018-02-04 02:26:07,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:07,850 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 02:26:07,934 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 02:26:07,935 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 02:26:07,937 INFO L87 Difference]: Start difference. First operand 332 states. Second operand 4 states. [2018-02-04 02:26:08,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 02:26:08,316 INFO L93 Difference]: Finished difference Result 387 states and 432 transitions. [2018-02-04 02:26:08,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 02:26:08,317 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-04 02:26:08,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 02:26:08,327 INFO L225 Difference]: With dead ends: 387 [2018-02-04 02:26:08,328 INFO L226 Difference]: Without dead ends: 384 [2018-02-04 02:26:08,329 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 02:26:08,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2018-02-04 02:26:08,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 344. [2018-02-04 02:26:08,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2018-02-04 02:26:08,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 388 transitions. [2018-02-04 02:26:08,377 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 388 transitions. Word has length 8 [2018-02-04 02:26:08,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 02:26:08,377 INFO L432 AbstractCegarLoop]: Abstraction has 344 states and 388 transitions. [2018-02-04 02:26:08,377 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 02:26:08,377 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 388 transitions. [2018-02-04 02:26:08,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 02:26:08,377 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 02:26:08,377 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 02:26:08,378 INFO L371 AbstractCegarLoop]: === Iteration 2 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-02-04 02:26:08,378 INFO L82 PathProgramCache]: Analyzing trace with hash 479486546, now seen corresponding path program 1 times [2018-02-04 02:26:08,378 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 02:26:08,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 02:26:08,394 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 02:26:08,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:08,439 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 02:26:08,439 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 02:26:08,439 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 02:26:08,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:08,440 INFO L182 omatonBuilderFactory]: Interpolants [1072#true, 1073#false, 1074#(and (= 8 (select |#length| |main_#t~malloc67.base|)) (= 0 |main_#t~malloc67.offset|)), 1075#(and (= main_~list~0.offset 0) (= (select |#length| main_~list~0.base) 8))] [2018-02-04 02:26:08,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:08,442 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 02:26:08,442 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 02:26:08,442 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 02:26:08,442 INFO L87 Difference]: Start difference. First operand 344 states and 388 transitions. Second operand 4 states. [2018-02-04 02:26:08,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 02:26:08,639 INFO L93 Difference]: Finished difference Result 346 states and 392 transitions. [2018-02-04 02:26:08,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 02:26:08,643 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-04 02:26:08,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 02:26:08,645 INFO L225 Difference]: With dead ends: 346 [2018-02-04 02:26:08,645 INFO L226 Difference]: Without dead ends: 346 [2018-02-04 02:26:08,645 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 02:26:08,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2018-02-04 02:26:08,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 342. [2018-02-04 02:26:08,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2018-02-04 02:26:08,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 386 transitions. [2018-02-04 02:26:08,661 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 386 transitions. Word has length 8 [2018-02-04 02:26:08,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 02:26:08,661 INFO L432 AbstractCegarLoop]: Abstraction has 342 states and 386 transitions. [2018-02-04 02:26:08,661 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 02:26:08,661 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 386 transitions. [2018-02-04 02:26:08,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-04 02:26:08,661 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 02:26:08,662 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 02:26:08,662 INFO L371 AbstractCegarLoop]: === Iteration 3 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-02-04 02:26:08,662 INFO L82 PathProgramCache]: Analyzing trace with hash -2063719306, now seen corresponding path program 1 times [2018-02-04 02:26:08,663 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 02:26:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 02:26:08,679 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 02:26:08,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:08,706 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 02:26:08,706 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 02:26:08,706 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 02:26:08,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:08,707 INFO L182 omatonBuilderFactory]: Interpolants [1766#true, 1767#false, 1768#(= 1 (select |#valid| |append_#t~malloc52.base|)), 1769#(= 1 (select |#valid| append_~node~0.base))] [2018-02-04 02:26:08,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:08,707 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 02:26:08,707 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 02:26:08,707 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 02:26:08,708 INFO L87 Difference]: Start difference. First operand 342 states and 386 transitions. Second operand 4 states. [2018-02-04 02:26:08,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 02:26:08,912 INFO L93 Difference]: Finished difference Result 337 states and 381 transitions. [2018-02-04 02:26:08,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 02:26:08,913 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-02-04 02:26:08,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 02:26:08,914 INFO L225 Difference]: With dead ends: 337 [2018-02-04 02:26:08,915 INFO L226 Difference]: Without dead ends: 337 [2018-02-04 02:26:08,915 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 02:26:08,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2018-02-04 02:26:08,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2018-02-04 02:26:08,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2018-02-04 02:26:08,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 381 transitions. [2018-02-04 02:26:08,926 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 381 transitions. Word has length 18 [2018-02-04 02:26:08,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 02:26:08,926 INFO L432 AbstractCegarLoop]: Abstraction has 337 states and 381 transitions. [2018-02-04 02:26:08,926 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 02:26:08,926 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 381 transitions. [2018-02-04 02:26:08,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-04 02:26:08,927 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 02:26:08,927 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 02:26:08,927 INFO L371 AbstractCegarLoop]: === Iteration 4 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-02-04 02:26:08,927 INFO L82 PathProgramCache]: Analyzing trace with hash -2063719305, now seen corresponding path program 1 times [2018-02-04 02:26:08,928 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 02:26:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 02:26:08,950 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 02:26:09,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:09,000 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 02:26:09,000 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 02:26:09,000 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 02:26:09,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:09,001 INFO L182 omatonBuilderFactory]: Interpolants [2448#(and (= 9 (select |#length| |append_#t~malloc52.base|)) (= 0 |append_#t~malloc52.offset|)), 2449#(and (= append_~node~0.offset 0) (= (select |#length| append_~node~0.base) 9)), 2446#true, 2447#false] [2018-02-04 02:26:09,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:09,001 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 02:26:09,001 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 02:26:09,002 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 02:26:09,002 INFO L87 Difference]: Start difference. First operand 337 states and 381 transitions. Second operand 4 states. [2018-02-04 02:26:09,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 02:26:09,148 INFO L93 Difference]: Finished difference Result 332 states and 376 transitions. [2018-02-04 02:26:09,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 02:26:09,148 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-02-04 02:26:09,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 02:26:09,149 INFO L225 Difference]: With dead ends: 332 [2018-02-04 02:26:09,149 INFO L226 Difference]: Without dead ends: 332 [2018-02-04 02:26:09,149 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 02:26:09,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2018-02-04 02:26:09,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2018-02-04 02:26:09,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2018-02-04 02:26:09,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 376 transitions. [2018-02-04 02:26:09,157 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 376 transitions. Word has length 18 [2018-02-04 02:26:09,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 02:26:09,157 INFO L432 AbstractCegarLoop]: Abstraction has 332 states and 376 transitions. [2018-02-04 02:26:09,157 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 02:26:09,157 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 376 transitions. [2018-02-04 02:26:09,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 02:26:09,157 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 02:26:09,158 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 02:26:09,158 INFO L371 AbstractCegarLoop]: === Iteration 5 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-02-04 02:26:09,158 INFO L82 PathProgramCache]: Analyzing trace with hash 449211379, now seen corresponding path program 1 times [2018-02-04 02:26:09,158 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 02:26:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 02:26:09,168 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 02:26:09,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:09,221 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 02:26:09,221 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 02:26:09,221 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 02:26:09,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:09,222 INFO L182 omatonBuilderFactory]: Interpolants [3120#(= 1 (select |#valid| append_~head.base)), 3121#(or (= append_~head.base |append_#t~malloc52.base|) (= (select |#valid| append_~head.base) 1)), 3122#(or (= append_~node~0.base append_~head.base) (= (select |#valid| append_~head.base) 1)), 3116#true, 3117#false, 3118#(= 1 (select |#valid| main_~list~0.base)), 3119#(= 1 (select |#valid| |append_#in~head.base|))] [2018-02-04 02:26:09,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:09,222 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 02:26:09,222 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 02:26:09,222 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-02-04 02:26:09,222 INFO L87 Difference]: Start difference. First operand 332 states and 376 transitions. Second operand 7 states. [2018-02-04 02:26:09,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 02:26:09,700 INFO L93 Difference]: Finished difference Result 360 states and 403 transitions. [2018-02-04 02:26:09,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 02:26:09,700 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-02-04 02:26:09,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 02:26:09,702 INFO L225 Difference]: With dead ends: 360 [2018-02-04 02:26:09,702 INFO L226 Difference]: Without dead ends: 360 [2018-02-04 02:26:09,702 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-02-04 02:26:09,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2018-02-04 02:26:09,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 324. [2018-02-04 02:26:09,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2018-02-04 02:26:09,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 368 transitions. [2018-02-04 02:26:09,709 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 368 transitions. Word has length 19 [2018-02-04 02:26:09,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 02:26:09,709 INFO L432 AbstractCegarLoop]: Abstraction has 324 states and 368 transitions. [2018-02-04 02:26:09,709 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 02:26:09,710 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 368 transitions. [2018-02-04 02:26:09,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 02:26:09,710 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 02:26:09,710 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 02:26:09,711 INFO L371 AbstractCegarLoop]: === Iteration 6 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-02-04 02:26:09,711 INFO L82 PathProgramCache]: Analyzing trace with hash 449211380, now seen corresponding path program 1 times [2018-02-04 02:26:09,712 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 02:26:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 02:26:09,739 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 02:26:09,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:09,817 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 02:26:09,818 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 02:26:09,818 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 02:26:09,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:09,819 INFO L182 omatonBuilderFactory]: Interpolants [3809#true, 3810#false, 3811#(and (= 8 (select |#length| |main_#t~malloc67.base|)) (= 0 |main_#t~malloc67.offset|)), 3812#(and (= 0 main_~list~0.offset) (= 8 (select |#length| main_~list~0.base))), 3813#(and (= 0 main_~list~0.offset) (= 8 (select |#length| main_~list~0.base)) (= (select |#valid| main_~list~0.base) 1)), 3814#(and (= 0 |append_#in~head.offset|) (= (select |#valid| |append_#in~head.base|) 1) (= 8 (select |#length| |append_#in~head.base|))), 3815#(and (= 8 (select |#length| append_~head.base)) (= append_~head.offset 0) (= (select |#valid| append_~head.base) 1)), 3816#(and (= append_~head.offset 0) (= (select |#length| append_~head.base) 8))] [2018-02-04 02:26:09,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:09,819 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 02:26:09,819 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 02:26:09,819 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-02-04 02:26:09,820 INFO L87 Difference]: Start difference. First operand 324 states and 368 transitions. Second operand 8 states. [2018-02-04 02:26:10,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 02:26:10,429 INFO L93 Difference]: Finished difference Result 354 states and 399 transitions. [2018-02-04 02:26:10,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-04 02:26:10,430 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2018-02-04 02:26:10,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 02:26:10,431 INFO L225 Difference]: With dead ends: 354 [2018-02-04 02:26:10,432 INFO L226 Difference]: Without dead ends: 354 [2018-02-04 02:26:10,432 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-02-04 02:26:10,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2018-02-04 02:26:10,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 315. [2018-02-04 02:26:10,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2018-02-04 02:26:10,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 358 transitions. [2018-02-04 02:26:10,439 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 358 transitions. Word has length 19 [2018-02-04 02:26:10,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 02:26:10,439 INFO L432 AbstractCegarLoop]: Abstraction has 315 states and 358 transitions. [2018-02-04 02:26:10,439 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 02:26:10,439 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 358 transitions. [2018-02-04 02:26:10,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-02-04 02:26:10,440 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 02:26:10,440 INFO L351 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] [2018-02-04 02:26:10,440 INFO L371 AbstractCegarLoop]: === Iteration 7 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-02-04 02:26:10,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1619802097, now seen corresponding path program 1 times [2018-02-04 02:26:10,441 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 02:26:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 02:26:10,456 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 02:26:10,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:10,602 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 02:26:10,602 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-02-04 02:26:10,602 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 02:26:10,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:10,602 INFO L182 omatonBuilderFactory]: Interpolants [4496#(and (= 0 (select (select |#memory_$Pointer$.base| append_~head.base) append_~head.offset)) (= 0 (select (select |#memory_$Pointer$.offset| append_~head.base) append_~head.offset)) (= (select |#valid| append_~head.base) 1)), 4497#(and (= 0 (select (select |#memory_$Pointer$.base| append_~head.base) append_~head.offset)) (= 0 (select (select |#memory_$Pointer$.offset| append_~head.base) append_~head.offset)) (not (= append_~head.base |append_#t~malloc52.base|))), 4498#(and (not (= append_~node~0.base append_~head.base)) (= 0 (select (select |#memory_$Pointer$.base| append_~head.base) append_~head.offset)) (= 0 (select (select |#memory_$Pointer$.offset| append_~head.base) append_~head.offset))), 4499#(and (= 0 (select (select |#memory_$Pointer$.base| append_~head.base) append_~head.offset)) (= 0 (select (select |#memory_$Pointer$.offset| append_~head.base) append_~head.offset))), 4500#(and (= 0 |append_#t~mem54.offset|) (= 0 |append_#t~mem54.base|)), 4501#|append_#t~short56|, 4492#true, 4493#false, 4494#(and (= 0 (select (store (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 4) 0) main_~list~0.offset)) (= 0 (select (store (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 4) 0) main_~list~0.offset)) (= (select |#valid| main_~list~0.base) 1)), 4495#(and (= (select |#valid| |append_#in~head.base|) 1) (= 0 (select (select |#memory_$Pointer$.offset| |append_#in~head.base|) |append_#in~head.offset|)) (= 0 (select (select |#memory_$Pointer$.base| |append_#in~head.base|) |append_#in~head.offset|)))] [2018-02-04 02:26:10,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:10,603 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-02-04 02:26:10,603 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-02-04 02:26:10,603 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-02-04 02:26:10,603 INFO L87 Difference]: Start difference. First operand 315 states and 358 transitions. Second operand 10 states. [2018-02-04 02:26:10,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 02:26:10,995 INFO L93 Difference]: Finished difference Result 338 states and 384 transitions. [2018-02-04 02:26:10,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-02-04 02:26:10,996 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 28 [2018-02-04 02:26:10,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 02:26:10,997 INFO L225 Difference]: With dead ends: 338 [2018-02-04 02:26:10,997 INFO L226 Difference]: Without dead ends: 338 [2018-02-04 02:26:10,998 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2018-02-04 02:26:10,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2018-02-04 02:26:11,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 326. [2018-02-04 02:26:11,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2018-02-04 02:26:11,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 371 transitions. [2018-02-04 02:26:11,006 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 371 transitions. Word has length 28 [2018-02-04 02:26:11,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 02:26:11,006 INFO L432 AbstractCegarLoop]: Abstraction has 326 states and 371 transitions. [2018-02-04 02:26:11,006 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-02-04 02:26:11,007 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 371 transitions. [2018-02-04 02:26:11,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-02-04 02:26:11,007 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 02:26:11,007 INFO L351 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] [2018-02-04 02:26:11,008 INFO L371 AbstractCegarLoop]: === Iteration 8 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-02-04 02:26:11,008 INFO L82 PathProgramCache]: Analyzing trace with hash -82034476, now seen corresponding path program 1 times [2018-02-04 02:26:11,009 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 02:26:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 02:26:11,025 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 02:26:11,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:11,241 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 02:26:11,241 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-02-04 02:26:11,241 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 02:26:11,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:11,241 INFO L182 omatonBuilderFactory]: Interpolants [5184#(and (= 0 |append_#in~head.offset|) (= (select |#valid| |append_#in~head.base|) 1) (= 0 (select (select |#memory_$Pointer$.offset| |append_#in~head.base|) (+ 0 4))) (= 0 (select (select |#memory_$Pointer$.base| |append_#in~head.base|) (+ 0 4)))), 5185#(and (= 0 (select (select |#memory_$Pointer$.base| append_~head.base) (+ append_~head.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| append_~head.base) (+ append_~head.offset 4))) (= append_~head.offset 0) (= (select |#valid| append_~head.base) 1)), 5186#(and (= 0 (select (select |#memory_$Pointer$.base| append_~head.base) (+ append_~head.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| append_~head.base) (+ append_~head.offset 4))) (= append_~head.offset 0) (not (= append_~head.base |append_#t~malloc52.base|))), 5187#(and (not (= append_~node~0.base append_~head.base)) (= 0 (select (select |#memory_$Pointer$.base| append_~head.base) (+ append_~head.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| append_~head.base) (+ append_~head.offset 4))) (= append_~head.offset 0)), 5188#(and (= 0 (select (select |#memory_$Pointer$.base| append_~head.base) (+ append_~head.offset 4))) (= 0 (select (select |#memory_$Pointer$.offset| append_~head.base) (+ append_~head.offset 4))) (= append_~head.offset 0)), 5189#(and (= |append_#t~mem55.offset| (select (select |#memory_$Pointer$.offset| append_~head.base) (+ append_~head.offset 4))) (= |append_#t~mem55.base| 0) (= 0 (select (select |#memory_$Pointer$.offset| append_~head.base) (+ append_~head.offset 4))) (= append_~head.offset 0)), 5190#(and |append_#t~short56| (= append_~head.offset 0)), 5178#true, 5179#false, 5180#(= 0 |main_#t~malloc67.offset|), 5181#(= 0 main_~list~0.offset), 5182#(and (= 0 main_~list~0.offset) (= (select |#valid| main_~list~0.base) 1)), 5183#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 4))) (= 0 main_~list~0.offset) (= 0 (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 4))) (= (select |#valid| main_~list~0.base) 1))] [2018-02-04 02:26:11,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:11,242 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-02-04 02:26:11,242 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-02-04 02:26:11,242 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-02-04 02:26:11,242 INFO L87 Difference]: Start difference. First operand 326 states and 371 transitions. Second operand 13 states. [2018-02-04 02:26:11,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 02:26:11,705 INFO L93 Difference]: Finished difference Result 366 states and 411 transitions. [2018-02-04 02:26:11,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-02-04 02:26:11,705 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2018-02-04 02:26:11,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 02:26:11,707 INFO L225 Difference]: With dead ends: 366 [2018-02-04 02:26:11,707 INFO L226 Difference]: Without dead ends: 366 [2018-02-04 02:26:11,707 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2018-02-04 02:26:11,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2018-02-04 02:26:11,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 329. [2018-02-04 02:26:11,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2018-02-04 02:26:11,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 374 transitions. [2018-02-04 02:26:11,711 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 374 transitions. Word has length 30 [2018-02-04 02:26:11,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 02:26:11,712 INFO L432 AbstractCegarLoop]: Abstraction has 329 states and 374 transitions. [2018-02-04 02:26:11,712 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-02-04 02:26:11,712 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 374 transitions. [2018-02-04 02:26:11,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-02-04 02:26:11,713 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 02:26:11,713 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 02:26:11,713 INFO L371 AbstractCegarLoop]: === Iteration 9 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-02-04 02:26:11,713 INFO L82 PathProgramCache]: Analyzing trace with hash -156377040, now seen corresponding path program 1 times [2018-02-04 02:26:11,714 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 02:26:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 02:26:11,738 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 02:26:12,255 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:12,256 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 02:26:12,256 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-02-04 02:26:12,256 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 02:26:12,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:12,256 INFO L182 omatonBuilderFactory]: Interpolants [5920#(and (or (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| append_~head.base) (+ append_~head.offset 4)))) (= |append_#t~malloc52.base| (select (select |#memory_$Pointer$.base| append_~head.base) (+ append_~head.offset 4)))) (not (= append_~head.base |append_#t~malloc52.base|))), 5921#(and (not (= append_~node~0.base append_~head.base)) (or (= append_~node~0.base (select (select |#memory_$Pointer$.base| append_~head.base) (+ append_~head.offset 4))) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| append_~head.base) (+ append_~head.offset 4)))))), 5922#(and (not (= append_~node~0.base append_~head.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| append_~head.base) (+ append_~head.offset 4))))), 5923#(= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| append_~node~0.base (store (select |#memory_$Pointer$.base| append_~node~0.base) (+ append_~node~0.offset 5) 0)) append_~head.base) (+ append_~head.offset 4)))), 5924#(= 1 (select |#valid| (select (select |#memory_$Pointer$.base| append_~head.base) (+ append_~head.offset 4)))), 5925#(= 1 (select |#valid| |append_#t~mem64.base|)), 5904#true, 5905#false, 5906#(= 0 |main_#t~malloc67.offset|), 5907#(= 0 main_~list~0.offset), 5908#(and (= 0 main_~list~0.offset) (= (select |#valid| main_~list~0.base) 1)), 5909#(= |#valid| |old(#valid)|), 5910#(and (or (= |append_#in~head.offset| append_~head.offset) (= append_~head.offset 0)) (= |#valid| |old(#valid)|) (= append_~head.base |append_#in~head.base|)), 5911#(and (or (= |append_#in~head.offset| append_~head.offset) (= append_~head.offset 0)) (= 1 (select |#valid| |append_#t~malloc52.base|)) (= append_~head.base |append_#in~head.base|) (= 0 (select |old(#valid)| |append_#t~malloc52.base|))), 5912#(and (or (= |append_#in~head.offset| append_~head.offset) (= append_~head.offset 0)) (= append_~head.base |append_#in~head.base|) (or (not (= append_~node~0.base append_~head.base)) (= 0 (select |old(#valid)| append_~node~0.base))) (= 1 (select |#valid| append_~node~0.base))), 5913#(and (or (= |append_#in~head.offset| append_~head.offset) (= append_~head.offset 0)) (= append_~head.base |append_#in~head.base|) (or (not (= append_~node~0.base append_~head.base)) (= 0 (select |old(#valid)| append_~node~0.base))) (= 1 (select |#valid| append_~node~0.base)) (= (select |#valid| append_~head.base) 1)), 5914#(or (and (= 0 (select |old(#valid)| append_~node~0.base)) (= append_~node~0.base |append_#in~head.base|)) (and (= (select |#valid| |append_#in~head.base|) 1) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| append_~node~0.base (store (select |#memory_$Pointer$.base| append_~node~0.base) (+ append_~node~0.offset 1) 0)) |append_#in~head.base|) (+ (- 0) 4)))) (not (= append_~node~0.base |append_#in~head.base|))) (not (= |append_#in~head.offset| 0))), 5915#(or (and (= 0 (select |old(#valid)| append_~node~0.base)) (= append_~node~0.base |append_#in~head.base|)) (and (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| append_~node~0.base (store (select |#memory_$Pointer$.base| append_~node~0.base) (+ append_~node~0.offset 5) 0)) |append_#in~head.base|) (+ (- 0) 4)))) (= (select |#valid| |append_#in~head.base|) 1)) (not (= |append_#in~head.offset| 0))), 5916#(or (= 0 (select |old(#valid)| |append_#in~head.base|)) (and (= (select |#valid| |append_#in~head.base|) 1) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |append_#in~head.base|) (+ (- 0) 4))))) (not (= |append_#in~head.offset| 0))), 5917#(and (= main_~list~0.offset 0) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 4)))) (= (select |#valid| main_~list~0.base) 1)), 5918#(and (= 0 |append_#in~head.offset|) (= (select |#valid| |append_#in~head.base|) 1) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| |append_#in~head.base|) (+ 0 4))))), 5919#(and (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| append_~head.base) (+ append_~head.offset 4)))) (= (select |#valid| append_~head.base) 1))] [2018-02-04 02:26:12,256 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:12,257 INFO L409 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-02-04 02:26:12,257 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-02-04 02:26:12,257 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2018-02-04 02:26:12,257 INFO L87 Difference]: Start difference. First operand 329 states and 374 transitions. Second operand 22 states. [2018-02-04 02:26:13,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 02:26:13,948 INFO L93 Difference]: Finished difference Result 369 states and 413 transitions. [2018-02-04 02:26:13,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-02-04 02:26:13,948 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 47 [2018-02-04 02:26:13,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 02:26:13,949 INFO L225 Difference]: With dead ends: 369 [2018-02-04 02:26:13,949 INFO L226 Difference]: Without dead ends: 369 [2018-02-04 02:26:13,949 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=168, Invalid=954, Unknown=0, NotChecked=0, Total=1122 [2018-02-04 02:26:13,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2018-02-04 02:26:13,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 334. [2018-02-04 02:26:13,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2018-02-04 02:26:13,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 378 transitions. [2018-02-04 02:26:13,954 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 378 transitions. Word has length 47 [2018-02-04 02:26:13,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 02:26:13,954 INFO L432 AbstractCegarLoop]: Abstraction has 334 states and 378 transitions. [2018-02-04 02:26:13,954 INFO L433 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-02-04 02:26:13,954 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 378 transitions. [2018-02-04 02:26:13,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-02-04 02:26:13,955 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 02:26:13,955 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 02:26:13,955 INFO L371 AbstractCegarLoop]: === Iteration 10 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-02-04 02:26:13,955 INFO L82 PathProgramCache]: Analyzing trace with hash -156377039, now seen corresponding path program 1 times [2018-02-04 02:26:13,955 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 02:26:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 02:26:13,977 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 02:26:14,597 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:14,598 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 02:26:14,598 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-02-04 02:26:14,598 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 02:26:14,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:14,599 INFO L182 omatonBuilderFactory]: Interpolants [6656#(= 0 main_~list~0.offset), 6657#(and (= 0 main_~list~0.offset) (= (select |#valid| main_~list~0.base) 1)), 6658#(= |#valid| |old(#valid)|), 6659#(and (or (= |append_#in~head.offset| append_~head.offset) (= append_~head.offset 0)) (or (not (= append_~head.offset 0)) (and (= |#valid| |old(#valid)|) (= append_~head.base |append_#in~head.base|)))), 6660#(and (or (= |append_#in~head.offset| append_~head.offset) (= append_~head.offset 0)) (or (and (= 9 (select |#length| |append_#t~malloc52.base|)) (= append_~head.base |append_#in~head.base|) (= 0 |append_#t~malloc52.offset|) (= 0 (select |old(#valid)| |append_#t~malloc52.base|))) (not (= append_~head.offset 0)))), 6661#(and (or (= |append_#in~head.offset| append_~head.offset) (= append_~head.offset 0)) (or (and (or (and (= 0 append_~node~0.offset) (= append_~head.base |append_#in~head.base|) (= (select |#length| append_~node~0.base) 9)) (= append_~node~0.base append_~head.base)) (or (not (= append_~node~0.base append_~head.base)) (and (= 0 (select |old(#valid)| append_~node~0.base)) (= append_~node~0.base |append_#in~head.base|)))) (not (= append_~head.offset 0)))), 6662#(and (or (= |append_#in~head.offset| append_~head.offset) (= append_~head.offset 0)) (or (and (or (and (= 0 append_~node~0.offset) (= append_~head.base |append_#in~head.base|) (= (select |#length| append_~node~0.base) 9) (= (select |#valid| append_~head.base) 1)) (= append_~node~0.base append_~head.base)) (or (not (= append_~node~0.base append_~head.base)) (and (= 0 (select |old(#valid)| append_~node~0.base)) (= append_~node~0.base |append_#in~head.base|)))) (not (= append_~head.offset 0)))), 6663#(or (and (= 0 (select |old(#valid)| append_~node~0.base)) (= append_~node~0.base |append_#in~head.base|)) (not (= |append_#in~head.offset| 0)) (and (= (select |#valid| |append_#in~head.base|) 1) (= 0 (select (select (store |#memory_$Pointer$.offset| append_~node~0.base (store (select |#memory_$Pointer$.offset| append_~node~0.base) (+ append_~node~0.offset 1) 0)) |append_#in~head.base|) (+ (- 0) 4))) (= append_~node~0.base (select (select (store |#memory_$Pointer$.base| append_~node~0.base (store (select |#memory_$Pointer$.base| append_~node~0.base) (+ append_~node~0.offset 1) 0)) |append_#in~head.base|) (+ (- 0) 4))) (= (select |#length| append_~node~0.base) 9) (not (= append_~node~0.base |append_#in~head.base|)))), 6664#(or (and (= 0 (select |old(#valid)| append_~node~0.base)) (= append_~node~0.base |append_#in~head.base|)) (and (= append_~node~0.base (select (select (store |#memory_$Pointer$.base| append_~node~0.base (store (select |#memory_$Pointer$.base| append_~node~0.base) (+ append_~node~0.offset 5) 0)) |append_#in~head.base|) (+ (- 0) 4))) (= (select |#valid| |append_#in~head.base|) 1) (= 0 (select (select (store |#memory_$Pointer$.offset| append_~node~0.base (store (select |#memory_$Pointer$.offset| append_~node~0.base) (+ append_~node~0.offset 5) 0)) |append_#in~head.base|) (+ (- 0) 4))) (= (select |#length| append_~node~0.base) 9)) (not (= |append_#in~head.offset| 0))), 6665#(or (= 0 (select |old(#valid)| |append_#in~head.base|)) (and (= (select |#valid| |append_#in~head.base|) 1) (<= 9 (select |#length| (select (select |#memory_$Pointer$.base| |append_#in~head.base|) (+ (- 0) 4)))) (= 0 (select (select |#memory_$Pointer$.offset| |append_#in~head.base|) (+ (- 0) 4)))) (not (= |append_#in~head.offset| 0))), 6666#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 4))) (= 0 main_~list~0.offset) (<= 9 (select |#length| (select (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 4)))) (= (select |#valid| main_~list~0.base) 1)), 6667#(and (= 0 |append_#in~head.offset|) (= (select |#valid| |append_#in~head.base|) 1) (= 0 (select (select |#memory_$Pointer$.offset| |append_#in~head.base|) (+ 0 4))) (<= 9 (select |#length| (select (select |#memory_$Pointer$.base| |append_#in~head.base|) (+ 0 4))))), 6668#(and (<= 9 (select |#length| (select (select |#memory_$Pointer$.base| append_~head.base) (+ append_~head.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| append_~head.base) (+ append_~head.offset 4))) (= append_~head.offset 0) (= (select |#valid| append_~head.base) 1)), 6669#(and (<= 9 (select |#length| (select (select |#memory_$Pointer$.base| append_~head.base) (+ append_~head.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| append_~head.base) (+ append_~head.offset 4))) (= append_~head.offset 0) (not (= append_~head.base |append_#t~malloc52.base|))), 6670#(and (not (= append_~node~0.base append_~head.base)) (<= 9 (select |#length| (select (select |#memory_$Pointer$.base| append_~head.base) (+ append_~head.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| append_~head.base) (+ append_~head.offset 4))) (= append_~head.offset 0)), 6671#(and (= 0 (select (select (store |#memory_$Pointer$.offset| append_~node~0.base (store (select |#memory_$Pointer$.offset| append_~node~0.base) (+ append_~node~0.offset 5) 0)) append_~head.base) (+ append_~head.offset 4))) (= append_~head.offset 0) (<= 9 (select |#length| (select (select (store |#memory_$Pointer$.base| append_~node~0.base (store (select |#memory_$Pointer$.base| append_~node~0.base) (+ append_~node~0.offset 5) 0)) append_~head.base) (+ append_~head.offset 4))))), 6672#(and (<= 9 (select |#length| (select (select |#memory_$Pointer$.base| append_~head.base) (+ append_~head.offset 4)))) (= 0 (select (select |#memory_$Pointer$.offset| append_~head.base) (+ append_~head.offset 4))) (= append_~head.offset 0)), 6673#(and (<= 9 (select |#length| |append_#t~mem64.base|)) (= |append_#t~mem64.offset| 0)), 6653#true, 6654#false, 6655#(= 0 |main_#t~malloc67.offset|)] [2018-02-04 02:26:14,599 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 02:26:14,599 INFO L409 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-02-04 02:26:14,599 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-02-04 02:26:14,600 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-02-04 02:26:14,600 INFO L87 Difference]: Start difference. First operand 334 states and 378 transitions. Second operand 21 states. [2018-02-04 02:26:16,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 02:26:16,808 INFO L93 Difference]: Finished difference Result 368 states and 412 transitions. [2018-02-04 02:26:16,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-02-04 02:26:16,808 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 47 [2018-02-04 02:26:16,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 02:26:16,810 INFO L225 Difference]: With dead ends: 368 [2018-02-04 02:26:16,810 INFO L226 Difference]: Without dead ends: 368 [2018-02-04 02:26:16,810 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=166, Invalid=956, Unknown=0, NotChecked=0, Total=1122 [2018-02-04 02:26:16,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2018-02-04 02:26:16,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 333. [2018-02-04 02:26:16,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2018-02-04 02:26:16,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 377 transitions. [2018-02-04 02:26:16,817 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 377 transitions. Word has length 47 [2018-02-04 02:26:16,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 02:26:16,817 INFO L432 AbstractCegarLoop]: Abstraction has 333 states and 377 transitions. [2018-02-04 02:26:16,817 INFO L433 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-02-04 02:26:16,817 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 377 transitions. [2018-02-04 02:26:16,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-02-04 02:26:16,823 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 02:26:16,823 INFO L351 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 02:26:16,823 INFO L371 AbstractCegarLoop]: === Iteration 11 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-02-04 02:26:16,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1032388757, now seen corresponding path program 1 times [2018-02-04 02:26:16,824 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 02:26:16,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 02:26:16,847 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 02:26:16,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1274 backedges. 7 proven. 84 refuted. 0 times theorem prover too weak. 1183 trivial. 0 not checked. [2018-02-04 02:26:16,943 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 02:26:16,943 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-02-04 02:26:16,943 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 02:26:16,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2018-02-04 02:26:16,945 INFO L182 omatonBuilderFactory]: Interpolants [7401#true, 7402#false, 7403#(not |append_#t~short56|)] [2018-02-04 02:26:16,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1274 backedges. 7 proven. 84 refuted. 0 times theorem prover too weak. 1183 trivial. 0 not checked. [2018-02-04 02:26:16,945 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 02:26:16,946 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 02:26:16,946 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 02:26:16,946 INFO L87 Difference]: Start difference. First operand 333 states and 377 transitions. Second operand 3 states. [2018-02-04 02:26:16,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 02:26:16,954 INFO L93 Difference]: Finished difference Result 334 states and 378 transitions. [2018-02-04 02:26:16,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 02:26:16,954 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2018-02-04 02:26:16,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 02:26:16,956 INFO L225 Difference]: With dead ends: 334 [2018-02-04 02:26:16,956 INFO L226 Difference]: Without dead ends: 334 [2018-02-04 02:26:16,956 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 02:26:16,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2018-02-04 02:26:16,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2018-02-04 02:26:16,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2018-02-04 02:26:16,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 378 transitions. [2018-02-04 02:26:16,962 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 378 transitions. Word has length 240 [2018-02-04 02:26:16,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 02:26:16,963 INFO L432 AbstractCegarLoop]: Abstraction has 334 states and 378 transitions. [2018-02-04 02:26:16,963 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 02:26:16,963 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 378 transitions. [2018-02-04 02:26:16,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2018-02-04 02:26:16,966 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 02:26:16,966 INFO L351 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 02:26:16,966 INFO L371 AbstractCegarLoop]: === Iteration 12 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-02-04 02:26:16,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1145563202, now seen corresponding path program 1 times [2018-02-04 02:26:16,967 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 02:26:17,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 02:26:17,087 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 02:26:17,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1456 backedges. 2 proven. 398 refuted. 0 times theorem prover too weak. 1056 trivial. 0 not checked. [2018-02-04 02:26:17,839 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 02:26:17,839 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-02-04 02:26:17,839 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 02:26:17,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 1056 trivial. 0 not checked. [2018-02-04 02:26:17,840 INFO L182 omatonBuilderFactory]: Interpolants [8072#true, 8073#false, 8074#(= (select |#valid| main_~list~0.base) 1), 8075#(= |#valid| |old(#valid)|), 8076#(and (= append_~head.offset |append_#in~head.offset|) (= |#valid| |old(#valid)|) (= append_~head.base |append_#in~head.base|)), 8077#(and (= append_~head.offset |append_#in~head.offset|) (= append_~head.base |append_#in~head.base|) (= 0 (select |old(#valid)| |append_#t~malloc52.base|)) (not (= |append_#t~malloc52.base| 0))), 8078#(and (= append_~head.offset |append_#in~head.offset|) (= append_~head.base |append_#in~head.base|) (not (= append_~node~0.base 0)) (or (not (= append_~node~0.base append_~head.base)) (= 0 (select |old(#valid)| append_~node~0.base)))), 8079#(and (= append_~head.offset |append_#in~head.offset|) (or (not (= append_~node~0.base append_~head.base)) (and (= 0 (select |old(#valid)| append_~node~0.base)) (= append_~node~0.base |append_#in~head.base|))) (not (= append_~node~0.base 0)) (or (and (= append_~head.base |append_#in~head.base|) (= (select |#valid| append_~head.base) 1)) (= append_~node~0.base append_~head.base))), 8080#(and (= append_~head.offset |append_#in~head.offset|) (or (not (= append_~node~0.base append_~head.base)) (and (= 0 (select |old(#valid)| append_~node~0.base)) (= append_~node~0.base |append_#in~head.base|))) (or (and (= append_~head.base |append_#in~head.base|) (= (select |#valid| append_~head.base) 1)) (= append_~node~0.base append_~head.base)) (not (= (select (store (select |#memory_$Pointer$.base| append_~head.base) (+ append_~head.offset 4) append_~node~0.base) append_~head.offset) 0))), 8081#(or (and (= 0 (select |old(#valid)| append_~node~0.base)) (= append_~node~0.base |append_#in~head.base|)) (and (not (= (select (select (store |#memory_$Pointer$.base| append_~node~0.base (store (select |#memory_$Pointer$.base| append_~node~0.base) (+ append_~node~0.offset 1) 0)) |append_#in~head.base|) |append_#in~head.offset|) 0)) (= (select |#valid| |append_#in~head.base|) 1) (not (= append_~node~0.base |append_#in~head.base|)))), 8082#(or (and (= 0 (select |old(#valid)| append_~node~0.base)) (= append_~node~0.base |append_#in~head.base|)) (and (= (select |#valid| |append_#in~head.base|) 1) (not (= (select (select (store |#memory_$Pointer$.base| append_~node~0.base (store (select |#memory_$Pointer$.base| append_~node~0.base) (+ append_~node~0.offset 5) 0)) |append_#in~head.base|) |append_#in~head.offset|) 0)))), 8083#(or (= 0 (select |old(#valid)| |append_#in~head.base|)) (and (= (select |#valid| |append_#in~head.base|) 1) (not (= (select (select |#memory_$Pointer$.base| |append_#in~head.base|) |append_#in~head.offset|) 0)))), 8084#(and (not (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) 0)) (= (select |#valid| main_~list~0.base) 1)), 8085#(and (= |#valid| |old(#valid)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)), 8086#(and (= append_~head.offset |append_#in~head.offset|) (= |#valid| |old(#valid)|) (= append_~head.base |append_#in~head.base|) (= (select |old(#memory_$Pointer$.base)| append_~head.base) (select |#memory_$Pointer$.base| append_~head.base))), 8087#(and (= append_~head.offset |append_#in~head.offset|) (= append_~head.base |append_#in~head.base|) (= (select |old(#memory_$Pointer$.base)| append_~head.base) (select |#memory_$Pointer$.base| append_~head.base)) (= 0 (select |old(#valid)| |append_#t~malloc52.base|))), 8088#(and (= 0 (select |old(#valid)| append_~node~0.base)) (= append_~head.offset |append_#in~head.offset|) (= append_~head.base |append_#in~head.base|) (= (select |old(#memory_$Pointer$.base)| append_~head.base) (select |#memory_$Pointer$.base| append_~head.base))), 8089#(and (= 0 (select |old(#valid)| append_~node~0.base)) (= append_~head.offset |append_#in~head.offset|) (= append_~head.base |append_#in~head.base|) (or (= (select |old(#memory_$Pointer$.base)| append_~head.base) (select |#memory_$Pointer$.base| append_~head.base)) (= append_~node~0.base append_~head.base))), 8090#(and (= 0 (select |old(#valid)| append_~node~0.base)) (= append_~head.offset |append_#in~head.offset|) (= append_~head.base |append_#in~head.base|) (or (= (select |old(#memory_$Pointer$.base)| append_~head.base) (select |#memory_$Pointer$.base| append_~head.base)) (= append_~node~0.base append_~head.base)) (= |append_#t~mem54.base| (select (select |#memory_$Pointer$.base| append_~head.base) append_~head.offset))), 8091#(and (= 0 (select |old(#valid)| append_~node~0.base)) (= append_~head.offset |append_#in~head.offset|) (= append_~head.base |append_#in~head.base|) (or (= (select |old(#memory_$Pointer$.base)| append_~head.base) (select |#memory_$Pointer$.base| append_~head.base)) (= append_~node~0.base append_~head.base)) (or (not |append_#t~short56|) (= 0 (select (select |#memory_$Pointer$.base| append_~head.base) append_~head.offset)))), 8092#(and (= 0 (select (select |#memory_$Pointer$.base| append_~head.base) append_~head.offset)) (= 0 (select |old(#valid)| append_~node~0.base)) (= append_~head.offset |append_#in~head.offset|) (= append_~head.base |append_#in~head.base|) (or (= (select |old(#memory_$Pointer$.base)| append_~head.base) (select |#memory_$Pointer$.base| append_~head.base)) (= append_~node~0.base append_~head.base))), 8093#(and (= 0 (select |old(#valid)| append_~node~0.base)) (or (and (= 0 (select (select |old(#memory_$Pointer$.base)| append_~head.base) append_~head.offset)) (= append_~head.offset |append_#in~head.offset|)) (= append_~node~0.base append_~head.base)) (= append_~head.base |append_#in~head.base|)), 8094#(and (= 0 (select |old(#valid)| append_~node~0.base)) (or (= 0 (select (select |old(#memory_$Pointer$.base)| |append_#in~head.base|) |append_#in~head.offset|)) (= append_~node~0.base |append_#in~head.base|))), 8095#(or (= 0 (select |old(#valid)| |append_#in~head.base|)) (= 0 (select (select |old(#memory_$Pointer$.base)| |append_#in~head.base|) |append_#in~head.offset|)))] [2018-02-04 02:26:17,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1456 backedges. 2 proven. 398 refuted. 0 times theorem prover too weak. 1056 trivial. 0 not checked. [2018-02-04 02:26:17,841 INFO L409 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-02-04 02:26:17,841 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-02-04 02:26:17,841 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2018-02-04 02:26:17,841 INFO L87 Difference]: Start difference. First operand 334 states and 378 transitions. Second operand 24 states. [2018-02-04 02:26:20,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 02:26:20,003 INFO L93 Difference]: Finished difference Result 381 states and 423 transitions. [2018-02-04 02:26:20,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-02-04 02:26:20,003 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 266 [2018-02-04 02:26:20,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 02:26:20,005 INFO L225 Difference]: With dead ends: 381 [2018-02-04 02:26:20,005 INFO L226 Difference]: Without dead ends: 362 [2018-02-04 02:26:20,005 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=321, Invalid=1841, Unknown=0, NotChecked=0, Total=2162 [2018-02-04 02:26:20,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2018-02-04 02:26:20,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 327. [2018-02-04 02:26:20,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2018-02-04 02:26:20,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 369 transitions. [2018-02-04 02:26:20,012 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 369 transitions. Word has length 266 [2018-02-04 02:26:20,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 02:26:20,013 INFO L432 AbstractCegarLoop]: Abstraction has 327 states and 369 transitions. [2018-02-04 02:26:20,013 INFO L433 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-02-04 02:26:20,013 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 369 transitions. [2018-02-04 02:26:20,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2018-02-04 02:26:20,016 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 02:26:20,016 INFO L351 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 02:26:20,017 INFO L371 AbstractCegarLoop]: === Iteration 13 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-02-04 02:26:20,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1863313214, now seen corresponding path program 1 times [2018-02-04 02:26:20,017 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 02:26:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 02:26:23,478 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs.