java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf -i ../../../trunk/examples/svcomp/memsafety-ext2/complex_data_creation_test01_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 12:09:49,404 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 12:09:49,406 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 12:09:49,421 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 12:09:49,421 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 12:09:49,422 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 12:09:49,423 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 12:09:49,424 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 12:09:49,426 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 12:09:49,427 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 12:09:49,428 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 12:09:49,429 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 12:09:49,429 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 12:09:49,431 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 12:09:49,432 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 12:09:49,434 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 12:09:49,436 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 12:09:49,438 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 12:09:49,440 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 12:09:49,441 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 12:09:49,443 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 12:09:49,444 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 12:09:49,444 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 12:09:49,445 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 12:09:49,446 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 12:09:49,447 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 12:09:49,448 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 12:09:49,448 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 12:09:49,448 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 12:09:49,449 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 12:09:49,449 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 12:09:49,450 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf [2018-01-24 12:09:49,459 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 12:09:49,459 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 12:09:49,460 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 12:09:49,460 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 12:09:49,460 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 12:09:49,460 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 12:09:49,460 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 12:09:49,461 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 12:09:49,461 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 12:09:49,461 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 12:09:49,461 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 12:09:49,461 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 12:09:49,461 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 12:09:49,461 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 12:09:49,462 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 12:09:49,462 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 12:09:49,462 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 12:09:49,462 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 12:09:49,462 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 12:09:49,462 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 12:09:49,462 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 12:09:49,463 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 12:09:49,463 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 12:09:49,463 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 12:09:49,463 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 12:09:49,463 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 12:09:49,464 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 12:09:49,464 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 12:09:49,464 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 12:09:49,464 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 12:09:49,464 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 12:09:49,464 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 12:09:49,465 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 12:09:49,465 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 12:09:49,499 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 12:09:49,509 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 12:09:49,513 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 12:09:49,514 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 12:09:49,514 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 12:09:49,515 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety-ext2/complex_data_creation_test01_true-valid-memsafety.i [2018-01-24 12:09:49,687 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 12:09:49,693 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 12:09:49,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 12:09:49,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 12:09:49,698 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 12:09:49,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 12:09:49" (1/1) ... [2018-01-24 12:09:49,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cdc1dbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:09:49, skipping insertion in model container [2018-01-24 12:09:49,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 12:09:49" (1/1) ... [2018-01-24 12:09:49,715 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 12:09:49,757 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 12:09:49,884 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 12:09:49,908 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 12:09:49,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:09:49 WrapperNode [2018-01-24 12:09:49,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 12:09:49,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 12:09:49,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 12:09:49,919 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 12:09:49,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:09:49" (1/1) ... [2018-01-24 12:09:49,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:09:49" (1/1) ... [2018-01-24 12:09:49,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:09:49" (1/1) ... [2018-01-24 12:09:49,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:09:49" (1/1) ... [2018-01-24 12:09:49,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:09:49" (1/1) ... [2018-01-24 12:09:49,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:09:49" (1/1) ... [2018-01-24 12:09:49,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:09:49" (1/1) ... [2018-01-24 12:09:49,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 12:09:49,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 12:09:49,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 12:09:49,972 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 12:09:49,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:09:49" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 12:09:50,037 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 12:09:50,037 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 12:09:50,037 INFO L136 BoogieDeclarations]: Found implementation of procedure create_data [2018-01-24 12:09:50,037 INFO L136 BoogieDeclarations]: Found implementation of procedure freeData [2018-01-24 12:09:50,037 INFO L136 BoogieDeclarations]: Found implementation of procedure append [2018-01-24 12:09:50,037 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 12:09:50,037 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 12:09:50,038 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 12:09:50,038 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 12:09:50,038 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 12:09:50,038 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 12:09:50,038 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 12:09:50,038 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 12:09:50,038 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 12:09:50,039 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 12:09:50,039 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 12:09:50,039 INFO L128 BoogieDeclarations]: Found specification of procedure create_data [2018-01-24 12:09:50,039 INFO L128 BoogieDeclarations]: Found specification of procedure freeData [2018-01-24 12:09:50,039 INFO L128 BoogieDeclarations]: Found specification of procedure append [2018-01-24 12:09:50,039 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 12:09:50,040 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 12:09:50,040 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 12:09:50,741 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 12:09:50,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 12:09:50 BoogieIcfgContainer [2018-01-24 12:09:50,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 12:09:50,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 12:09:50,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 12:09:50,745 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 12:09:50,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 12:09:49" (1/3) ... [2018-01-24 12:09:50,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf77698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 12:09:50, skipping insertion in model container [2018-01-24 12:09:50,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:09:49" (2/3) ... [2018-01-24 12:09:50,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf77698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 12:09:50, skipping insertion in model container [2018-01-24 12:09:50,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 12:09:50" (3/3) ... [2018-01-24 12:09:50,749 INFO L105 eAbstractionObserver]: Analyzing ICFG complex_data_creation_test01_true-valid-memsafety.i [2018-01-24 12:09:50,756 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 12:09:50,763 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 91 error locations. [2018-01-24 12:09:50,804 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 12:09:50,805 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 12:09:50,805 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 12:09:50,805 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 12:09:50,805 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 12:09:50,805 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 12:09:50,805 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 12:09:50,805 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 12:09:50,806 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 12:09:50,826 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states. [2018-01-24 12:09:50,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-01-24 12:09:50,831 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:09:50,832 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:09:50,832 INFO L371 AbstractCegarLoop]: === Iteration 1 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:09:50,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1826704007, now seen corresponding path program 1 times [2018-01-24 12:09:50,837 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:09:50,838 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:09:50,879 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:50,879 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:09:50,879 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:09:50,917 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:09:50,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:09:50,973 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:09:50,974 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 12:09:50,975 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 12:09:51,066 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 12:09:51,066 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 12:09:51,068 INFO L87 Difference]: Start difference. First operand 213 states. Second operand 3 states. [2018-01-24 12:09:51,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:09:51,386 INFO L93 Difference]: Finished difference Result 412 states and 451 transitions. [2018-01-24 12:09:51,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 12:09:51,388 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-01-24 12:09:51,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:09:51,401 INFO L225 Difference]: With dead ends: 412 [2018-01-24 12:09:51,401 INFO L226 Difference]: Without dead ends: 205 [2018-01-24 12:09:51,406 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 12:09:51,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2018-01-24 12:09:51,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2018-01-24 12:09:51,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2018-01-24 12:09:51,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 217 transitions. [2018-01-24 12:09:51,454 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 217 transitions. Word has length 7 [2018-01-24 12:09:51,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:09:51,455 INFO L432 AbstractCegarLoop]: Abstraction has 205 states and 217 transitions. [2018-01-24 12:09:51,455 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 12:09:51,455 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 217 transitions. [2018-01-24 12:09:51,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-01-24 12:09:51,456 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:09:51,456 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:09:51,456 INFO L371 AbstractCegarLoop]: === Iteration 2 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:09:51,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1826704008, now seen corresponding path program 1 times [2018-01-24 12:09:51,457 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:09:51,457 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:09:51,458 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:51,458 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:09:51,458 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:09:51,473 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:09:51,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:09:51,519 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:09:51,519 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 12:09:51,520 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 12:09:51,521 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 12:09:51,521 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 12:09:51,521 INFO L87 Difference]: Start difference. First operand 205 states and 217 transitions. Second operand 3 states. [2018-01-24 12:09:51,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:09:51,682 INFO L93 Difference]: Finished difference Result 207 states and 220 transitions. [2018-01-24 12:09:51,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 12:09:51,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-01-24 12:09:51,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:09:51,685 INFO L225 Difference]: With dead ends: 207 [2018-01-24 12:09:51,686 INFO L226 Difference]: Without dead ends: 206 [2018-01-24 12:09:51,687 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 12:09:51,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-01-24 12:09:51,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 204. [2018-01-24 12:09:51,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-01-24 12:09:51,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 216 transitions. [2018-01-24 12:09:51,698 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 216 transitions. Word has length 7 [2018-01-24 12:09:51,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:09:51,698 INFO L432 AbstractCegarLoop]: Abstraction has 204 states and 216 transitions. [2018-01-24 12:09:51,698 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 12:09:51,698 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 216 transitions. [2018-01-24 12:09:51,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-24 12:09:51,699 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:09:51,699 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:09:51,699 INFO L371 AbstractCegarLoop]: === Iteration 3 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:09:51,699 INFO L82 PathProgramCache]: Analyzing trace with hash 627159801, now seen corresponding path program 1 times [2018-01-24 12:09:51,699 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:09:51,699 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:09:51,700 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:51,700 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:09:51,700 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:51,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:09:51,721 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:09:51,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:09:51,804 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:09:51,804 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 12:09:51,804 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 12:09:51,805 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 12:09:51,805 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:09:51,805 INFO L87 Difference]: Start difference. First operand 204 states and 216 transitions. Second operand 5 states. [2018-01-24 12:09:52,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:09:52,036 INFO L93 Difference]: Finished difference Result 204 states and 216 transitions. [2018-01-24 12:09:52,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 12:09:52,037 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-01-24 12:09:52,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:09:52,038 INFO L225 Difference]: With dead ends: 204 [2018-01-24 12:09:52,038 INFO L226 Difference]: Without dead ends: 202 [2018-01-24 12:09:52,039 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-24 12:09:52,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2018-01-24 12:09:52,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2018-01-24 12:09:52,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2018-01-24 12:09:52,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 214 transitions. [2018-01-24 12:09:52,053 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 214 transitions. Word has length 14 [2018-01-24 12:09:52,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:09:52,053 INFO L432 AbstractCegarLoop]: Abstraction has 202 states and 214 transitions. [2018-01-24 12:09:52,053 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 12:09:52,054 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 214 transitions. [2018-01-24 12:09:52,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-24 12:09:52,054 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:09:52,055 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:09:52,055 INFO L371 AbstractCegarLoop]: === Iteration 4 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:09:52,055 INFO L82 PathProgramCache]: Analyzing trace with hash 627159802, now seen corresponding path program 1 times [2018-01-24 12:09:52,055 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:09:52,055 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:09:52,056 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:52,056 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:09:52,056 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:52,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:09:52,069 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:09:52,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:09:52,202 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:09:52,202 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 12:09:52,203 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 12:09:52,203 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 12:09:52,203 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-24 12:09:52,203 INFO L87 Difference]: Start difference. First operand 202 states and 214 transitions. Second operand 7 states. [2018-01-24 12:09:52,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:09:52,571 INFO L93 Difference]: Finished difference Result 224 states and 240 transitions. [2018-01-24 12:09:52,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 12:09:52,571 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-01-24 12:09:52,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:09:52,573 INFO L225 Difference]: With dead ends: 224 [2018-01-24 12:09:52,573 INFO L226 Difference]: Without dead ends: 222 [2018-01-24 12:09:52,574 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-01-24 12:09:52,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2018-01-24 12:09:52,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 211. [2018-01-24 12:09:52,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2018-01-24 12:09:52,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 226 transitions. [2018-01-24 12:09:52,587 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 226 transitions. Word has length 14 [2018-01-24 12:09:52,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:09:52,587 INFO L432 AbstractCegarLoop]: Abstraction has 211 states and 226 transitions. [2018-01-24 12:09:52,588 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 12:09:52,588 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 226 transitions. [2018-01-24 12:09:52,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-24 12:09:52,588 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:09:52,588 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:09:52,589 INFO L371 AbstractCegarLoop]: === Iteration 5 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:09:52,589 INFO L82 PathProgramCache]: Analyzing trace with hash -2032882424, now seen corresponding path program 1 times [2018-01-24 12:09:52,589 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:09:52,589 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:09:52,590 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:52,590 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:09:52,591 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:09:52,605 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:09:52,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:09:52,645 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:09:52,645 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 12:09:52,645 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 12:09:52,645 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 12:09:52,646 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 12:09:52,646 INFO L87 Difference]: Start difference. First operand 211 states and 226 transitions. Second operand 4 states. [2018-01-24 12:09:52,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:09:52,799 INFO L93 Difference]: Finished difference Result 211 states and 226 transitions. [2018-01-24 12:09:52,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 12:09:52,799 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-01-24 12:09:52,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:09:52,800 INFO L225 Difference]: With dead ends: 211 [2018-01-24 12:09:52,800 INFO L226 Difference]: Without dead ends: 209 [2018-01-24 12:09:52,800 INFO L525 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 [2018-01-24 12:09:52,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2018-01-24 12:09:52,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2018-01-24 12:09:52,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2018-01-24 12:09:52,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 223 transitions. [2018-01-24 12:09:52,811 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 223 transitions. Word has length 15 [2018-01-24 12:09:52,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:09:52,811 INFO L432 AbstractCegarLoop]: Abstraction has 209 states and 223 transitions. [2018-01-24 12:09:52,811 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 12:09:52,811 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 223 transitions. [2018-01-24 12:09:52,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-24 12:09:52,812 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:09:52,812 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:09:52,812 INFO L371 AbstractCegarLoop]: === Iteration 6 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:09:52,812 INFO L82 PathProgramCache]: Analyzing trace with hash -2032882423, now seen corresponding path program 1 times [2018-01-24 12:09:52,812 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:09:52,812 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:09:52,813 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:52,813 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:09:52,813 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:09:52,825 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:09:52,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:09:52,860 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:09:52,861 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 12:09:52,861 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 12:09:52,861 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 12:09:52,861 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 12:09:52,861 INFO L87 Difference]: Start difference. First operand 209 states and 223 transitions. Second operand 4 states. [2018-01-24 12:09:53,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:09:53,014 INFO L93 Difference]: Finished difference Result 209 states and 223 transitions. [2018-01-24 12:09:53,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 12:09:53,042 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-01-24 12:09:53,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:09:53,043 INFO L225 Difference]: With dead ends: 209 [2018-01-24 12:09:53,044 INFO L226 Difference]: Without dead ends: 207 [2018-01-24 12:09:53,044 INFO L525 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 [2018-01-24 12:09:53,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2018-01-24 12:09:53,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2018-01-24 12:09:53,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2018-01-24 12:09:53,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 220 transitions. [2018-01-24 12:09:53,051 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 220 transitions. Word has length 15 [2018-01-24 12:09:53,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:09:53,051 INFO L432 AbstractCegarLoop]: Abstraction has 207 states and 220 transitions. [2018-01-24 12:09:53,052 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 12:09:53,052 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 220 transitions. [2018-01-24 12:09:53,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-24 12:09:53,052 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:09:53,053 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:09:53,053 INFO L371 AbstractCegarLoop]: === Iteration 7 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:09:53,053 INFO L82 PathProgramCache]: Analyzing trace with hash -290527541, now seen corresponding path program 1 times [2018-01-24 12:09:53,053 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:09:53,053 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:09:53,054 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:53,054 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:09:53,054 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:09:53,072 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:09:53,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:09:53,446 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:09:53,446 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-01-24 12:09:53,447 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-01-24 12:09:53,447 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-01-24 12:09:53,447 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-01-24 12:09:53,447 INFO L87 Difference]: Start difference. First operand 207 states and 220 transitions. Second operand 13 states. [2018-01-24 12:09:54,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:09:54,815 INFO L93 Difference]: Finished difference Result 399 states and 427 transitions. [2018-01-24 12:09:54,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-01-24 12:09:54,816 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 20 [2018-01-24 12:09:54,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:09:54,818 INFO L225 Difference]: With dead ends: 399 [2018-01-24 12:09:54,818 INFO L226 Difference]: Without dead ends: 209 [2018-01-24 12:09:54,819 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2018-01-24 12:09:54,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2018-01-24 12:09:54,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 208. [2018-01-24 12:09:54,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2018-01-24 12:09:54,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 221 transitions. [2018-01-24 12:09:54,830 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 221 transitions. Word has length 20 [2018-01-24 12:09:54,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:09:54,831 INFO L432 AbstractCegarLoop]: Abstraction has 208 states and 221 transitions. [2018-01-24 12:09:54,831 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-01-24 12:09:54,831 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 221 transitions. [2018-01-24 12:09:54,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-24 12:09:54,831 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:09:54,832 INFO L322 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] [2018-01-24 12:09:54,832 INFO L371 AbstractCegarLoop]: === Iteration 8 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:09:54,832 INFO L82 PathProgramCache]: Analyzing trace with hash -30107462, now seen corresponding path program 1 times [2018-01-24 12:09:54,832 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:09:54,832 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:09:54,833 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:54,833 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:09:54,833 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:09:54,845 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:09:54,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:09:54,892 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:09:54,892 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 12:09:54,893 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 12:09:54,893 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 12:09:54,893 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 12:09:54,893 INFO L87 Difference]: Start difference. First operand 208 states and 221 transitions. Second operand 4 states. [2018-01-24 12:09:54,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:09:54,977 INFO L93 Difference]: Finished difference Result 484 states and 520 transitions. [2018-01-24 12:09:54,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 12:09:54,977 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-01-24 12:09:54,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:09:54,979 INFO L225 Difference]: With dead ends: 484 [2018-01-24 12:09:54,979 INFO L226 Difference]: Without dead ends: 294 [2018-01-24 12:09:54,980 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:09:54,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2018-01-24 12:09:54,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 258. [2018-01-24 12:09:54,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2018-01-24 12:09:54,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 311 transitions. [2018-01-24 12:09:54,992 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 311 transitions. Word has length 22 [2018-01-24 12:09:54,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:09:54,992 INFO L432 AbstractCegarLoop]: Abstraction has 258 states and 311 transitions. [2018-01-24 12:09:54,992 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 12:09:54,992 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 311 transitions. [2018-01-24 12:09:54,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-24 12:09:54,993 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:09:54,993 INFO L322 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] [2018-01-24 12:09:54,993 INFO L371 AbstractCegarLoop]: === Iteration 9 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:09:54,994 INFO L82 PathProgramCache]: Analyzing trace with hash 929227204, now seen corresponding path program 1 times [2018-01-24 12:09:54,994 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:09:54,994 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:09:54,995 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:54,995 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:09:54,995 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:09:55,010 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:09:55,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:09:55,068 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:09:55,068 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 12:09:55,069 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 12:09:55,069 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 12:09:55,069 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 12:09:55,069 INFO L87 Difference]: Start difference. First operand 258 states and 311 transitions. Second operand 4 states. [2018-01-24 12:09:55,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:09:55,358 INFO L93 Difference]: Finished difference Result 260 states and 313 transitions. [2018-01-24 12:09:55,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 12:09:55,358 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2018-01-24 12:09:55,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:09:55,360 INFO L225 Difference]: With dead ends: 260 [2018-01-24 12:09:55,360 INFO L226 Difference]: Without dead ends: 247 [2018-01-24 12:09:55,360 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:09:55,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2018-01-24 12:09:55,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 245. [2018-01-24 12:09:55,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2018-01-24 12:09:55,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 285 transitions. [2018-01-24 12:09:55,369 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 285 transitions. Word has length 26 [2018-01-24 12:09:55,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:09:55,369 INFO L432 AbstractCegarLoop]: Abstraction has 245 states and 285 transitions. [2018-01-24 12:09:55,370 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 12:09:55,370 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 285 transitions. [2018-01-24 12:09:55,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-24 12:09:55,370 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:09:55,371 INFO L322 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] [2018-01-24 12:09:55,371 INFO L371 AbstractCegarLoop]: === Iteration 10 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:09:55,371 INFO L82 PathProgramCache]: Analyzing trace with hash 929227205, now seen corresponding path program 1 times [2018-01-24 12:09:55,371 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:09:55,371 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:09:55,372 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:55,372 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:09:55,372 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:55,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:09:55,387 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:09:55,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:09:55,494 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:09:55,494 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 12:09:55,494 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 12:09:55,494 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 12:09:55,494 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:09:55,495 INFO L87 Difference]: Start difference. First operand 245 states and 285 transitions. Second operand 5 states. [2018-01-24 12:09:56,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:09:56,000 INFO L93 Difference]: Finished difference Result 247 states and 287 transitions. [2018-01-24 12:09:56,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 12:09:56,000 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-01-24 12:09:56,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:09:56,002 INFO L225 Difference]: With dead ends: 247 [2018-01-24 12:09:56,002 INFO L226 Difference]: Without dead ends: 234 [2018-01-24 12:09:56,002 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-01-24 12:09:56,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2018-01-24 12:09:56,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 232. [2018-01-24 12:09:56,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2018-01-24 12:09:56,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 259 transitions. [2018-01-24 12:09:56,009 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 259 transitions. Word has length 26 [2018-01-24 12:09:56,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:09:56,009 INFO L432 AbstractCegarLoop]: Abstraction has 232 states and 259 transitions. [2018-01-24 12:09:56,010 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 12:09:56,010 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 259 transitions. [2018-01-24 12:09:56,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-24 12:09:56,010 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:09:56,011 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:09:56,011 INFO L371 AbstractCegarLoop]: === Iteration 11 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:09:56,011 INFO L82 PathProgramCache]: Analyzing trace with hash 2007437674, now seen corresponding path program 1 times [2018-01-24 12:09:56,011 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:09:56,011 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:09:56,012 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:56,012 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:09:56,012 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:09:56,027 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:09:56,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:09:56,080 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:09:56,080 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 12:09:56,080 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 12:09:56,080 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 12:09:56,081 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:09:56,081 INFO L87 Difference]: Start difference. First operand 232 states and 259 transitions. Second operand 5 states. [2018-01-24 12:09:56,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:09:56,367 INFO L93 Difference]: Finished difference Result 300 states and 341 transitions. [2018-01-24 12:09:56,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 12:09:56,367 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2018-01-24 12:09:56,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:09:56,369 INFO L225 Difference]: With dead ends: 300 [2018-01-24 12:09:56,369 INFO L226 Difference]: Without dead ends: 299 [2018-01-24 12:09:56,369 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-01-24 12:09:56,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2018-01-24 12:09:56,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 242. [2018-01-24 12:09:56,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2018-01-24 12:09:56,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 273 transitions. [2018-01-24 12:09:56,378 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 273 transitions. Word has length 32 [2018-01-24 12:09:56,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:09:56,378 INFO L432 AbstractCegarLoop]: Abstraction has 242 states and 273 transitions. [2018-01-24 12:09:56,378 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 12:09:56,378 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 273 transitions. [2018-01-24 12:09:56,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-24 12:09:56,379 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:09:56,379 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:09:56,380 INFO L371 AbstractCegarLoop]: === Iteration 12 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:09:56,380 INFO L82 PathProgramCache]: Analyzing trace with hash 2007437675, now seen corresponding path program 1 times [2018-01-24 12:09:56,380 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:09:56,380 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:09:56,381 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:56,381 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:09:56,381 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:09:56,394 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:09:56,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:09:56,527 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:09:56,527 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 12:09:56,527 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 12:09:56,527 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 12:09:56,528 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-01-24 12:09:56,528 INFO L87 Difference]: Start difference. First operand 242 states and 273 transitions. Second operand 6 states. [2018-01-24 12:09:56,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:09:56,762 INFO L93 Difference]: Finished difference Result 474 states and 539 transitions. [2018-01-24 12:09:56,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 12:09:56,763 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-01-24 12:09:56,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:09:56,765 INFO L225 Difference]: With dead ends: 474 [2018-01-24 12:09:56,765 INFO L226 Difference]: Without dead ends: 250 [2018-01-24 12:09:56,766 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-01-24 12:09:56,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2018-01-24 12:09:56,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 242. [2018-01-24 12:09:56,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2018-01-24 12:09:56,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 269 transitions. [2018-01-24 12:09:56,780 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 269 transitions. Word has length 32 [2018-01-24 12:09:56,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:09:56,780 INFO L432 AbstractCegarLoop]: Abstraction has 242 states and 269 transitions. [2018-01-24 12:09:56,781 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 12:09:56,781 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 269 transitions. [2018-01-24 12:09:56,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-01-24 12:09:56,782 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:09:56,782 INFO L322 BasicCegarLoop]: trace histogram [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] [2018-01-24 12:09:56,782 INFO L371 AbstractCegarLoop]: === Iteration 13 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:09:56,782 INFO L82 PathProgramCache]: Analyzing trace with hash 2018693333, now seen corresponding path program 1 times [2018-01-24 12:09:56,782 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:09:56,783 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:09:56,783 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:56,784 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:09:56,784 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:09:56,804 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:09:56,952 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:09:56,952 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:09:56,952 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 12:09:56,963 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:09:57,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:09:57,012 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:09:57,059 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-01-24 12:09:57,061 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 12:09:57,071 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:09:57,072 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-01-24 12:09:57,096 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:09:57,097 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:09:57,100 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-01-24 12:09:57,101 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 12:09:57,107 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:09:57,108 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2018-01-24 12:09:57,132 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-01-24 12:09:57,139 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-01-24 12:09:57,140 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:09:57,149 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:09:57,162 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:09:57,162 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:27 [2018-01-24 12:09:57,242 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 57 [2018-01-24 12:09:57,255 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 1 [2018-01-24 12:09:57,256 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:09:57,262 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:09:57,281 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:09:57,281 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:68, output treesize:27 [2018-01-24 12:09:57,287 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 25 [2018-01-24 12:09:57,290 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 10 [2018-01-24 12:09:57,291 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:09:57,295 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:09:57,305 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-24 12:09:57,306 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:36, output treesize:15 [2018-01-24 12:09:57,358 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-01-24 12:09:57,392 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-24 12:09:57,392 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2018-01-24 12:09:57,393 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-01-24 12:09:57,393 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-01-24 12:09:57,393 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-01-24 12:09:57,393 INFO L87 Difference]: Start difference. First operand 242 states and 269 transitions. Second operand 13 states. [2018-01-24 12:09:57,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:09:57,999 INFO L93 Difference]: Finished difference Result 250 states and 277 transitions. [2018-01-24 12:09:57,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 12:09:57,999 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 39 [2018-01-24 12:09:58,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:09:58,001 INFO L225 Difference]: With dead ends: 250 [2018-01-24 12:09:58,002 INFO L226 Difference]: Without dead ends: 249 [2018-01-24 12:09:58,002 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2018-01-24 12:09:58,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2018-01-24 12:09:58,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 241. [2018-01-24 12:09:58,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2018-01-24 12:09:58,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 267 transitions. [2018-01-24 12:09:58,050 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 267 transitions. Word has length 39 [2018-01-24 12:09:58,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:09:58,051 INFO L432 AbstractCegarLoop]: Abstraction has 241 states and 267 transitions. [2018-01-24 12:09:58,051 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-01-24 12:09:58,051 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 267 transitions. [2018-01-24 12:09:58,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-01-24 12:09:58,052 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:09:58,052 INFO L322 BasicCegarLoop]: trace histogram [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] [2018-01-24 12:09:58,052 INFO L371 AbstractCegarLoop]: === Iteration 14 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:09:58,052 INFO L82 PathProgramCache]: Analyzing trace with hash 2018693334, now seen corresponding path program 1 times [2018-01-24 12:09:58,053 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:09:58,053 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:09:58,054 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:58,054 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:09:58,054 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:09:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:09:58,077 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:09:58,448 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:09:58,448 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:09:58,448 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 12:09:58,460 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:09:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:09:58,496 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:09:58,506 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-01-24 12:09:58,506 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 12:09:58,511 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:09:58,512 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-01-24 12:09:58,521 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-01-24 12:09:58,521 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 12:09:58,539 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:09:58,540 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:09:58,541 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-01-24 12:09:58,542 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:09:58,547 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:09:58,548 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2018-01-24 12:09:58,559 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-01-24 12:09:58,562 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-01-24 12:09:58,562 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:09:58,565 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:09:58,576 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-01-24 12:09:58,581 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-01-24 12:09:58,582 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-24 12:09:58,584 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:09:58,593 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:09:58,593 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:36, output treesize:31 [2018-01-24 12:09:58,685 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 98 [2018-01-24 12:09:58,690 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 1 [2018-01-24 12:09:58,691 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:09:58,699 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:09:58,729 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 52 [2018-01-24 12:09:58,735 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 1 [2018-01-24 12:09:58,736 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-24 12:09:58,746 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:09:58,761 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:09:58,761 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:116, output treesize:34 [2018-01-24 12:09:58,828 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 25 [2018-01-24 12:09:58,831 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 10 [2018-01-24 12:09:58,832 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:09:58,837 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:09:58,848 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-01-24 12:09:58,852 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-01-24 12:09:58,853 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-24 12:09:58,855 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:09:58,878 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:09:58,879 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:52, output treesize:12 [2018-01-24 12:09:58,913 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:09:58,949 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-24 12:09:58,949 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 14 [2018-01-24 12:09:58,950 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-01-24 12:09:58,950 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-01-24 12:09:58,950 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2018-01-24 12:09:58,950 INFO L87 Difference]: Start difference. First operand 241 states and 267 transitions. Second operand 15 states. [2018-01-24 12:10:00,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:00,023 INFO L93 Difference]: Finished difference Result 493 states and 555 transitions. [2018-01-24 12:10:00,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-24 12:10:00,024 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 39 [2018-01-24 12:10:00,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:00,026 INFO L225 Difference]: With dead ends: 493 [2018-01-24 12:10:00,026 INFO L226 Difference]: Without dead ends: 270 [2018-01-24 12:10:00,027 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 30 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=158, Invalid=442, Unknown=0, NotChecked=0, Total=600 [2018-01-24 12:10:00,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2018-01-24 12:10:00,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 262. [2018-01-24 12:10:00,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2018-01-24 12:10:00,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 287 transitions. [2018-01-24 12:10:00,041 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 287 transitions. Word has length 39 [2018-01-24 12:10:00,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:00,042 INFO L432 AbstractCegarLoop]: Abstraction has 262 states and 287 transitions. [2018-01-24 12:10:00,042 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-01-24 12:10:00,042 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 287 transitions. [2018-01-24 12:10:00,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-01-24 12:10:00,043 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:00,043 INFO L322 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:00,043 INFO L371 AbstractCegarLoop]: === Iteration 15 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:00,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1460771081, now seen corresponding path program 1 times [2018-01-24 12:10:00,044 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:00,044 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:00,045 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:00,045 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:00,045 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:00,065 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:00,114 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-01-24 12:10:00,114 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:10:00,114 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 12:10:00,114 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 12:10:00,115 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 12:10:00,115 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 12:10:00,115 INFO L87 Difference]: Start difference. First operand 262 states and 287 transitions. Second operand 4 states. [2018-01-24 12:10:00,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:00,301 INFO L93 Difference]: Finished difference Result 268 states and 293 transitions. [2018-01-24 12:10:00,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 12:10:00,301 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2018-01-24 12:10:00,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:00,303 INFO L225 Difference]: With dead ends: 268 [2018-01-24 12:10:00,303 INFO L226 Difference]: Without dead ends: 264 [2018-01-24 12:10:00,303 INFO L525 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 [2018-01-24 12:10:00,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2018-01-24 12:10:00,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 258. [2018-01-24 12:10:00,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2018-01-24 12:10:00,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 279 transitions. [2018-01-24 12:10:00,319 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 279 transitions. Word has length 63 [2018-01-24 12:10:00,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:00,319 INFO L432 AbstractCegarLoop]: Abstraction has 258 states and 279 transitions. [2018-01-24 12:10:00,319 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 12:10:00,319 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 279 transitions. [2018-01-24 12:10:00,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-01-24 12:10:00,321 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:00,321 INFO L322 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:00,321 INFO L371 AbstractCegarLoop]: === Iteration 16 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:00,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1460771082, now seen corresponding path program 1 times [2018-01-24 12:10:00,321 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:00,321 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:00,322 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:00,322 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:00,322 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:00,344 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:00,413 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-01-24 12:10:00,414 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:10:00,414 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 12:10:00,414 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 12:10:00,415 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 12:10:00,415 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 12:10:00,415 INFO L87 Difference]: Start difference. First operand 258 states and 279 transitions. Second operand 4 states. [2018-01-24 12:10:00,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:00,653 INFO L93 Difference]: Finished difference Result 264 states and 285 transitions. [2018-01-24 12:10:00,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 12:10:00,653 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2018-01-24 12:10:00,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:00,655 INFO L225 Difference]: With dead ends: 264 [2018-01-24 12:10:00,656 INFO L226 Difference]: Without dead ends: 260 [2018-01-24 12:10:00,656 INFO L525 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 [2018-01-24 12:10:00,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2018-01-24 12:10:00,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 254. [2018-01-24 12:10:00,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2018-01-24 12:10:00,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 271 transitions. [2018-01-24 12:10:00,670 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 271 transitions. Word has length 63 [2018-01-24 12:10:00,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:00,671 INFO L432 AbstractCegarLoop]: Abstraction has 254 states and 271 transitions. [2018-01-24 12:10:00,671 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 12:10:00,671 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 271 transitions. [2018-01-24 12:10:00,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-01-24 12:10:00,672 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:00,672 INFO L322 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:00,672 INFO L371 AbstractCegarLoop]: === Iteration 17 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:00,672 INFO L82 PathProgramCache]: Analyzing trace with hash 2050431775, now seen corresponding path program 1 times [2018-01-24 12:10:00,672 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:00,672 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:00,673 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:00,673 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:00,674 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:00,696 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:00,760 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:00,760 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:10:00,761 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 12:10:00,771 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:00,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:00,818 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:10:00,848 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:00,883 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-24 12:10:00,884 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-01-24 12:10:00,884 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 12:10:00,884 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 12:10:00,884 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-01-24 12:10:00,885 INFO L87 Difference]: Start difference. First operand 254 states and 271 transitions. Second operand 7 states. [2018-01-24 12:10:00,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:00,947 INFO L93 Difference]: Finished difference Result 514 states and 553 transitions. [2018-01-24 12:10:00,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 12:10:00,949 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2018-01-24 12:10:00,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:00,950 INFO L225 Difference]: With dead ends: 514 [2018-01-24 12:10:00,951 INFO L226 Difference]: Without dead ends: 278 [2018-01-24 12:10:00,952 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-01-24 12:10:00,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2018-01-24 12:10:00,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 268. [2018-01-24 12:10:00,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2018-01-24 12:10:00,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 285 transitions. [2018-01-24 12:10:00,966 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 285 transitions. Word has length 66 [2018-01-24 12:10:00,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:00,966 INFO L432 AbstractCegarLoop]: Abstraction has 268 states and 285 transitions. [2018-01-24 12:10:00,966 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 12:10:00,966 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 285 transitions. [2018-01-24 12:10:00,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-01-24 12:10:00,967 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:00,967 INFO L322 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:00,967 INFO L371 AbstractCegarLoop]: === Iteration 18 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:00,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1137393610, now seen corresponding path program 2 times [2018-01-24 12:10:00,968 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:00,968 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:00,968 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:00,969 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:00,969 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:00,991 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:01,061 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:01,061 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:10:01,061 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 12:10:01,072 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-24 12:10:01,105 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 12:10:01,111 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-24 12:10:01,116 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:10:01,121 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-01-24 12:10:01,121 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 12:10:01,123 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:10:01,123 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-01-24 12:10:01,184 WARN L1029 $PredicateComparison]: unable to prove that (exists ((|create_data_#t~malloc3.base| Int)) (and (= 0 (select |c_old(#valid)| |create_data_#t~malloc3.base|)) (= |c_#valid| (store |c_old(#valid)| |create_data_#t~malloc3.base| 1)))) is different from true [2018-01-24 12:10:01,189 WARN L1029 $PredicateComparison]: unable to prove that (exists ((|create_data_#t~malloc4.base| Int) (|create_data_#t~malloc3.base| Int)) (and (= 0 (select |c_old(#valid)| |create_data_#t~malloc3.base|)) (= |c_#valid| (store (store |c_old(#valid)| |create_data_#t~malloc3.base| 1) |create_data_#t~malloc4.base| 1)))) is different from true [2018-01-24 12:10:01,253 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:01,254 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:01,255 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-01-24 12:10:01,268 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 20 [2018-01-24 12:10:01,268 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:10:01,287 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:10:01,312 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-01-24 12:10:01,313 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:20, output treesize:20 [2018-01-24 12:10:01,359 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-01-24 12:10:01,381 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-24 12:10:01,381 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 14 [2018-01-24 12:10:01,381 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-01-24 12:10:01,382 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-01-24 12:10:01,382 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=102, Unknown=2, NotChecked=42, Total=182 [2018-01-24 12:10:01,382 INFO L87 Difference]: Start difference. First operand 268 states and 285 transitions. Second operand 14 states. [2018-01-24 12:10:02,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:02,130 INFO L93 Difference]: Finished difference Result 586 states and 636 transitions. [2018-01-24 12:10:02,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-01-24 12:10:02,131 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 73 [2018-01-24 12:10:02,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:02,132 INFO L225 Difference]: With dead ends: 586 [2018-01-24 12:10:02,132 INFO L226 Difference]: Without dead ends: 336 [2018-01-24 12:10:02,133 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=222, Unknown=17, NotChecked=66, Total=380 [2018-01-24 12:10:02,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2018-01-24 12:10:02,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 303. [2018-01-24 12:10:02,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2018-01-24 12:10:02,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 328 transitions. [2018-01-24 12:10:02,146 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 328 transitions. Word has length 73 [2018-01-24 12:10:02,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:02,147 INFO L432 AbstractCegarLoop]: Abstraction has 303 states and 328 transitions. [2018-01-24 12:10:02,147 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-01-24 12:10:02,147 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 328 transitions. [2018-01-24 12:10:02,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-01-24 12:10:02,147 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:02,147 INFO L322 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:02,148 INFO L371 AbstractCegarLoop]: === Iteration 19 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:02,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1500484800, now seen corresponding path program 1 times [2018-01-24 12:10:02,148 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:02,148 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:02,149 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:02,149 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-24 12:10:02,149 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:02,167 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:02,305 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:02,306 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:10:02,306 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 12:10:02,317 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:02,369 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:10:02,394 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:02,428 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-24 12:10:02,428 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2018-01-24 12:10:02,429 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-24 12:10:02,429 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-24 12:10:02,429 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-01-24 12:10:02,429 INFO L87 Difference]: Start difference. First operand 303 states and 328 transitions. Second operand 9 states. [2018-01-24 12:10:02,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:02,537 INFO L93 Difference]: Finished difference Result 612 states and 668 transitions. [2018-01-24 12:10:02,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 12:10:02,538 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2018-01-24 12:10:02,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:02,539 INFO L225 Difference]: With dead ends: 612 [2018-01-24 12:10:02,540 INFO L226 Difference]: Without dead ends: 327 [2018-01-24 12:10:02,541 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-01-24 12:10:02,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2018-01-24 12:10:02,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 317. [2018-01-24 12:10:02,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2018-01-24 12:10:02,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 342 transitions. [2018-01-24 12:10:02,560 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 342 transitions. Word has length 80 [2018-01-24 12:10:02,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:02,560 INFO L432 AbstractCegarLoop]: Abstraction has 317 states and 342 transitions. [2018-01-24 12:10:02,560 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-24 12:10:02,561 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 342 transitions. [2018-01-24 12:10:02,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-01-24 12:10:02,562 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:02,562 INFO L322 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:02,562 INFO L371 AbstractCegarLoop]: === Iteration 20 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:02,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1333480917, now seen corresponding path program 2 times [2018-01-24 12:10:02,562 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:02,562 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:02,563 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:02,564 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:02,564 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:02,590 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:02,764 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:02,765 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:10:02,765 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 12:10:02,774 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-24 12:10:02,803 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 12:10:02,809 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-24 12:10:02,814 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:10:02,945 WARN L1029 $PredicateComparison]: unable to prove that (exists ((|create_data_#t~malloc4.base| Int) (|create_data_#t~malloc3.base| Int)) (and (= (store (store |c_old(#length)| |create_data_#t~malloc3.base| 16) |create_data_#t~malloc4.base| 80) |c_#length|) (= (select (store |c_old(#valid)| |create_data_#t~malloc3.base| 1) |create_data_#t~malloc4.base|) 0) (= 0 (select |c_old(#valid)| |create_data_#t~malloc3.base|)))) is different from true [2018-01-24 12:10:03,048 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:03,055 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2018-01-24 12:10:03,098 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:03,122 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:03,123 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 36 [2018-01-24 12:10:03,124 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:10:03,175 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:10:03,209 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:03,210 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:03,211 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:03,212 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:03,213 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-01-24 12:10:03,214 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-01-24 12:10:03,225 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-01-24 12:10:03,226 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:38, output treesize:29 [2018-01-24 12:10:03,287 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-01-24 12:10:03,321 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-24 12:10:03,322 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 17 [2018-01-24 12:10:03,322 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-01-24 12:10:03,324 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-01-24 12:10:03,324 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=187, Unknown=2, NotChecked=28, Total=272 [2018-01-24 12:10:03,324 INFO L87 Difference]: Start difference. First operand 317 states and 342 transitions. Second operand 17 states. [2018-01-24 12:10:04,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:04,585 INFO L93 Difference]: Finished difference Result 670 states and 729 transitions. [2018-01-24 12:10:04,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-01-24 12:10:04,586 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 87 [2018-01-24 12:10:04,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:04,588 INFO L225 Difference]: With dead ends: 670 [2018-01-24 12:10:04,588 INFO L226 Difference]: Without dead ends: 371 [2018-01-24 12:10:04,590 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=133, Invalid=484, Unknown=37, NotChecked=48, Total=702 [2018-01-24 12:10:04,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2018-01-24 12:10:04,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 345. [2018-01-24 12:10:04,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2018-01-24 12:10:04,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 374 transitions. [2018-01-24 12:10:04,614 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 374 transitions. Word has length 87 [2018-01-24 12:10:04,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:04,614 INFO L432 AbstractCegarLoop]: Abstraction has 345 states and 374 transitions. [2018-01-24 12:10:04,614 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-01-24 12:10:04,614 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 374 transitions. [2018-01-24 12:10:04,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-01-24 12:10:04,615 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:04,616 INFO L322 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:04,616 INFO L371 AbstractCegarLoop]: === Iteration 21 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:04,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1993221762, now seen corresponding path program 1 times [2018-01-24 12:10:04,616 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:04,616 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:04,617 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:04,617 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-24 12:10:04,617 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:04,643 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:04,691 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2018-01-24 12:10:04,691 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:10:04,692 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 12:10:04,692 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 12:10:04,692 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 12:10:04,692 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 12:10:04,693 INFO L87 Difference]: Start difference. First operand 345 states and 374 transitions. Second operand 4 states. [2018-01-24 12:10:04,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:04,753 INFO L93 Difference]: Finished difference Result 680 states and 747 transitions. [2018-01-24 12:10:04,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 12:10:04,753 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 96 [2018-01-24 12:10:04,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:04,756 INFO L225 Difference]: With dead ends: 680 [2018-01-24 12:10:04,756 INFO L226 Difference]: Without dead ends: 353 [2018-01-24 12:10:04,757 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:10:04,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2018-01-24 12:10:04,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 351. [2018-01-24 12:10:04,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2018-01-24 12:10:04,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 376 transitions. [2018-01-24 12:10:04,780 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 376 transitions. Word has length 96 [2018-01-24 12:10:04,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:04,781 INFO L432 AbstractCegarLoop]: Abstraction has 351 states and 376 transitions. [2018-01-24 12:10:04,781 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 12:10:04,781 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 376 transitions. [2018-01-24 12:10:04,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-01-24 12:10:04,782 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:04,782 INFO L322 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:04,782 INFO L371 AbstractCegarLoop]: === Iteration 22 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:04,783 INFO L82 PathProgramCache]: Analyzing trace with hash -550586226, now seen corresponding path program 1 times [2018-01-24 12:10:04,783 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:04,783 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:04,784 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:04,784 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:04,784 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:04,809 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:04,951 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:04,951 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:10:04,951 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 12:10:04,958 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:05,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:05,009 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:10:05,053 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:05,074 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-24 12:10:05,075 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2018-01-24 12:10:05,075 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-24 12:10:05,075 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-24 12:10:05,075 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-01-24 12:10:05,075 INFO L87 Difference]: Start difference. First operand 351 states and 376 transitions. Second operand 11 states. [2018-01-24 12:10:05,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:05,157 INFO L93 Difference]: Finished difference Result 708 states and 766 transitions. [2018-01-24 12:10:05,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 12:10:05,158 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 96 [2018-01-24 12:10:05,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:05,161 INFO L225 Difference]: With dead ends: 708 [2018-01-24 12:10:05,161 INFO L226 Difference]: Without dead ends: 375 [2018-01-24 12:10:05,162 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-01-24 12:10:05,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2018-01-24 12:10:05,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 365. [2018-01-24 12:10:05,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2018-01-24 12:10:05,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 390 transitions. [2018-01-24 12:10:05,196 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 390 transitions. Word has length 96 [2018-01-24 12:10:05,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:05,197 INFO L432 AbstractCegarLoop]: Abstraction has 365 states and 390 transitions. [2018-01-24 12:10:05,197 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-24 12:10:05,197 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 390 transitions. [2018-01-24 12:10:05,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-01-24 12:10:05,198 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:05,198 INFO L322 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:05,198 INFO L371 AbstractCegarLoop]: === Iteration 23 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:05,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1634312185, now seen corresponding path program 2 times [2018-01-24 12:10:05,198 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:05,198 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:05,199 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:05,199 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:05,199 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:05,222 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:05,418 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 212 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:05,418 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:10:05,418 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 12:10:05,424 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-24 12:10:05,453 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 12:10:05,456 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-24 12:10:05,459 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:10:05,484 WARN L1029 $PredicateComparison]: unable to prove that (exists ((|create_data_#t~malloc3.base| Int)) (and (= 0 (select |c_old(#valid)| |create_data_#t~malloc3.base|)) (= |c_#valid| (store |c_old(#valid)| |create_data_#t~malloc3.base| 1)))) is different from true [2018-01-24 12:10:05,489 WARN L1029 $PredicateComparison]: unable to prove that (exists ((|create_data_#t~malloc4.base| Int) (|create_data_#t~malloc3.base| Int)) (and (= 0 (select |c_old(#valid)| |create_data_#t~malloc3.base|)) (= |c_#valid| (store (store |c_old(#valid)| |create_data_#t~malloc3.base| 1) |create_data_#t~malloc4.base| 1)))) is different from true [2018-01-24 12:10:05,564 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:05,565 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:05,566 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-01-24 12:10:05,571 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 20 [2018-01-24 12:10:05,572 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:10:05,593 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:10:05,636 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-01-24 12:10:05,636 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:20, output treesize:20 [2018-01-24 12:10:05,700 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2018-01-24 12:10:05,721 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-24 12:10:05,721 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 16 [2018-01-24 12:10:05,721 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-01-24 12:10:05,722 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-01-24 12:10:05,722 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=122, Unknown=2, NotChecked=50, Total=240 [2018-01-24 12:10:05,722 INFO L87 Difference]: Start difference. First operand 365 states and 390 transitions. Second operand 16 states. [2018-01-24 12:10:06,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:06,215 INFO L93 Difference]: Finished difference Result 744 states and 805 transitions. [2018-01-24 12:10:06,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-01-24 12:10:06,215 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 103 [2018-01-24 12:10:06,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:06,217 INFO L225 Difference]: With dead ends: 744 [2018-01-24 12:10:06,217 INFO L226 Difference]: Without dead ends: 397 [2018-01-24 12:10:06,218 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=302, Unknown=47, NotChecked=86, Total=600 [2018-01-24 12:10:06,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2018-01-24 12:10:06,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 383. [2018-01-24 12:10:06,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2018-01-24 12:10:06,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 410 transitions. [2018-01-24 12:10:06,236 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 410 transitions. Word has length 103 [2018-01-24 12:10:06,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:06,236 INFO L432 AbstractCegarLoop]: Abstraction has 383 states and 410 transitions. [2018-01-24 12:10:06,236 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-01-24 12:10:06,236 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 410 transitions. [2018-01-24 12:10:06,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-01-24 12:10:06,237 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:06,237 INFO L322 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:06,237 INFO L371 AbstractCegarLoop]: === Iteration 24 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:06,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1686805039, now seen corresponding path program 1 times [2018-01-24 12:10:06,238 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:06,238 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:06,238 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:06,238 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-24 12:10:06,239 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:06,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:06,259 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:06,555 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 270 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:06,555 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:10:06,556 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 12:10:06,562 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:06,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:06,614 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:10:06,641 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 270 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:06,667 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-24 12:10:06,667 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2018-01-24 12:10:06,667 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-01-24 12:10:06,668 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-01-24 12:10:06,668 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-01-24 12:10:06,668 INFO L87 Difference]: Start difference. First operand 383 states and 410 transitions. Second operand 13 states. [2018-01-24 12:10:06,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:06,757 INFO L93 Difference]: Finished difference Result 772 states and 834 transitions. [2018-01-24 12:10:06,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-24 12:10:06,757 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 110 [2018-01-24 12:10:06,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:06,761 INFO L225 Difference]: With dead ends: 772 [2018-01-24 12:10:06,761 INFO L226 Difference]: Without dead ends: 407 [2018-01-24 12:10:06,763 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-01-24 12:10:06,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2018-01-24 12:10:06,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 397. [2018-01-24 12:10:06,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2018-01-24 12:10:06,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 424 transitions. [2018-01-24 12:10:06,798 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 424 transitions. Word has length 110 [2018-01-24 12:10:06,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:06,799 INFO L432 AbstractCegarLoop]: Abstraction has 397 states and 424 transitions. [2018-01-24 12:10:06,799 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-01-24 12:10:06,799 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 424 transitions. [2018-01-24 12:10:06,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-01-24 12:10:06,800 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:06,800 INFO L322 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:06,800 INFO L371 AbstractCegarLoop]: === Iteration 25 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:06,801 INFO L82 PathProgramCache]: Analyzing trace with hash 81439322, now seen corresponding path program 2 times [2018-01-24 12:10:06,801 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:06,801 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:06,802 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:06,802 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:06,802 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:06,831 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:07,047 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:07,047 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:10:07,047 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 12:10:07,053 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-24 12:10:07,081 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 12:10:07,086 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-24 12:10:07,089 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:10:07,160 WARN L1029 $PredicateComparison]: unable to prove that (exists ((|create_data_#t~malloc4.base| Int) (|create_data_#t~malloc3.base| Int)) (and (= (store (store |c_old(#length)| |create_data_#t~malloc3.base| 16) |create_data_#t~malloc4.base| 80) |c_#length|) (= (select (store |c_old(#valid)| |create_data_#t~malloc3.base| 1) |create_data_#t~malloc4.base|) 0) (= 0 (select |c_old(#valid)| |create_data_#t~malloc3.base|)))) is different from true [2018-01-24 12:10:07,278 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:07,280 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2018-01-24 12:10:07,296 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:07,311 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:07,312 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 36 [2018-01-24 12:10:07,312 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:10:07,344 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:10:07,403 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:07,404 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:07,404 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:07,405 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:07,406 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-01-24 12:10:07,406 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-01-24 12:10:07,415 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-01-24 12:10:07,415 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:38, output treesize:29 [2018-01-24 12:10:07,550 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2018-01-24 12:10:07,571 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-24 12:10:07,571 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 19 [2018-01-24 12:10:07,572 INFO L409 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-01-24 12:10:07,572 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-01-24 12:10:07,572 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=217, Unknown=2, NotChecked=32, Total=342 [2018-01-24 12:10:07,572 INFO L87 Difference]: Start difference. First operand 397 states and 424 transitions. Second operand 19 states. [2018-01-24 12:10:08,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:08,531 INFO L93 Difference]: Finished difference Result 801 states and 865 transitions. [2018-01-24 12:10:08,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-01-24 12:10:08,531 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 117 [2018-01-24 12:10:08,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:08,533 INFO L225 Difference]: With dead ends: 801 [2018-01-24 12:10:08,534 INFO L226 Difference]: Without dead ends: 422 [2018-01-24 12:10:08,535 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=238, Invalid=557, Unknown=79, NotChecked=56, Total=930 [2018-01-24 12:10:08,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2018-01-24 12:10:08,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 410. [2018-01-24 12:10:08,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2018-01-24 12:10:08,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 435 transitions. [2018-01-24 12:10:08,565 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 435 transitions. Word has length 117 [2018-01-24 12:10:08,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:08,566 INFO L432 AbstractCegarLoop]: Abstraction has 410 states and 435 transitions. [2018-01-24 12:10:08,566 INFO L433 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-01-24 12:10:08,566 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 435 transitions. [2018-01-24 12:10:08,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-01-24 12:10:08,568 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:08,568 INFO L322 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:08,568 INFO L371 AbstractCegarLoop]: === Iteration 26 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:08,568 INFO L82 PathProgramCache]: Analyzing trace with hash 371670050, now seen corresponding path program 1 times [2018-01-24 12:10:08,569 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:08,569 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:08,569 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:08,570 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-24 12:10:08,570 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:08,596 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:08,691 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2018-01-24 12:10:08,691 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:10:08,692 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 12:10:08,692 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 12:10:08,692 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 12:10:08,692 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 12:10:08,692 INFO L87 Difference]: Start difference. First operand 410 states and 435 transitions. Second operand 6 states. [2018-01-24 12:10:08,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:08,837 INFO L93 Difference]: Finished difference Result 842 states and 901 transitions. [2018-01-24 12:10:08,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 12:10:08,837 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-01-24 12:10:08,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:08,840 INFO L225 Difference]: With dead ends: 842 [2018-01-24 12:10:08,840 INFO L226 Difference]: Without dead ends: 450 [2018-01-24 12:10:08,841 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-01-24 12:10:08,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2018-01-24 12:10:08,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 418. [2018-01-24 12:10:08,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2018-01-24 12:10:08,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 443 transitions. [2018-01-24 12:10:08,873 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 443 transitions. Word has length 124 [2018-01-24 12:10:08,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:08,874 INFO L432 AbstractCegarLoop]: Abstraction has 418 states and 443 transitions. [2018-01-24 12:10:08,874 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 12:10:08,874 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 443 transitions. [2018-01-24 12:10:08,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-01-24 12:10:08,876 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:08,876 INFO L322 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:08,876 INFO L371 AbstractCegarLoop]: === Iteration 27 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:08,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1058519163, now seen corresponding path program 1 times [2018-01-24 12:10:08,877 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:08,877 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:08,877 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:08,878 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:08,878 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:08,908 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:09,106 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 407 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:09,107 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:10:09,107 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 12:10:09,112 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:09,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:09,166 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:10:09,198 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 407 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:09,233 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-24 12:10:09,233 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2018-01-24 12:10:09,234 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-01-24 12:10:09,234 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-01-24 12:10:09,234 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2018-01-24 12:10:09,234 INFO L87 Difference]: Start difference. First operand 418 states and 443 transitions. Second operand 15 states. [2018-01-24 12:10:09,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:09,374 INFO L93 Difference]: Finished difference Result 842 states and 900 transitions. [2018-01-24 12:10:09,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-01-24 12:10:09,375 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 126 [2018-01-24 12:10:09,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:09,377 INFO L225 Difference]: With dead ends: 842 [2018-01-24 12:10:09,377 INFO L226 Difference]: Without dead ends: 442 [2018-01-24 12:10:09,378 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2018-01-24 12:10:09,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2018-01-24 12:10:09,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 432. [2018-01-24 12:10:09,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2018-01-24 12:10:09,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 457 transitions. [2018-01-24 12:10:09,407 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 457 transitions. Word has length 126 [2018-01-24 12:10:09,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:09,407 INFO L432 AbstractCegarLoop]: Abstraction has 432 states and 457 transitions. [2018-01-24 12:10:09,407 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-01-24 12:10:09,408 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 457 transitions. [2018-01-24 12:10:09,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-01-24 12:10:09,408 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:09,409 INFO L322 BasicCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:09,409 INFO L371 AbstractCegarLoop]: === Iteration 28 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:09,409 INFO L82 PathProgramCache]: Analyzing trace with hash -341794384, now seen corresponding path program 2 times [2018-01-24 12:10:09,409 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:09,409 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:09,410 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:09,410 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:09,410 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:09,438 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:09,661 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:09,662 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:10:09,662 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 12:10:09,668 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-24 12:10:09,704 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 12:10:09,709 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-24 12:10:09,713 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:10:09,716 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-01-24 12:10:09,717 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 12:10:09,723 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:10:09,723 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-01-24 12:10:09,797 WARN L1029 $PredicateComparison]: unable to prove that (exists ((|create_data_#t~malloc3.base| Int)) (and (= 0 (select |c_old(#valid)| |create_data_#t~malloc3.base|)) (= |c_#valid| (store |c_old(#valid)| |create_data_#t~malloc3.base| 1)))) is different from true [2018-01-24 12:10:09,801 WARN L1029 $PredicateComparison]: unable to prove that (exists ((|create_data_#t~malloc4.base| Int) (|create_data_#t~malloc3.base| Int)) (and (= 0 (select |c_old(#valid)| |create_data_#t~malloc3.base|)) (= |c_#valid| (store (store |c_old(#valid)| |create_data_#t~malloc3.base| 1) |create_data_#t~malloc4.base| 1)))) is different from true [2018-01-24 12:10:09,884 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:09,885 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:09,886 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-01-24 12:10:09,891 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 20 [2018-01-24 12:10:09,891 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:10:09,898 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:10:09,967 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-01-24 12:10:09,967 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:20, output treesize:20 [2018-01-24 12:10:10,022 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2018-01-24 12:10:10,052 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-24 12:10:10,052 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [15] total 21 [2018-01-24 12:10:10,053 INFO L409 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-01-24 12:10:10,053 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-01-24 12:10:10,053 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=230, Unknown=2, NotChecked=70, Total=420 [2018-01-24 12:10:10,053 INFO L87 Difference]: Start difference. First operand 432 states and 457 transitions. Second operand 21 states. [2018-01-24 12:10:10,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:10,733 INFO L93 Difference]: Finished difference Result 900 states and 964 transitions. [2018-01-24 12:10:10,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-01-24 12:10:10,733 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 133 [2018-01-24 12:10:10,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:10,735 INFO L225 Difference]: With dead ends: 900 [2018-01-24 12:10:10,735 INFO L226 Difference]: Without dead ends: 486 [2018-01-24 12:10:10,736 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=317, Invalid=654, Unknown=93, NotChecked=126, Total=1190 [2018-01-24 12:10:10,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2018-01-24 12:10:10,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 457. [2018-01-24 12:10:10,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2018-01-24 12:10:10,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 485 transitions. [2018-01-24 12:10:10,768 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 485 transitions. Word has length 133 [2018-01-24 12:10:10,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:10,768 INFO L432 AbstractCegarLoop]: Abstraction has 457 states and 485 transitions. [2018-01-24 12:10:10,768 INFO L433 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-01-24 12:10:10,768 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 485 transitions. [2018-01-24 12:10:10,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-01-24 12:10:10,769 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:10,770 INFO L322 BasicCegarLoop]: trace histogram [14, 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] [2018-01-24 12:10:10,770 INFO L371 AbstractCegarLoop]: === Iteration 29 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:10,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1585549606, now seen corresponding path program 1 times [2018-01-24 12:10:10,770 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:10,770 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:10,771 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:10,771 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-24 12:10:10,771 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:10,802 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:11,022 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 572 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:11,022 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:10:11,022 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 12:10:11,027 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:11,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:11,090 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:10:11,130 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 572 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:11,152 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-24 12:10:11,152 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2018-01-24 12:10:11,152 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-01-24 12:10:11,153 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-01-24 12:10:11,153 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2018-01-24 12:10:11,153 INFO L87 Difference]: Start difference. First operand 457 states and 485 transitions. Second operand 17 states. [2018-01-24 12:10:11,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:11,232 INFO L93 Difference]: Finished difference Result 920 states and 985 transitions. [2018-01-24 12:10:11,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-01-24 12:10:11,232 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 140 [2018-01-24 12:10:11,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:11,235 INFO L225 Difference]: With dead ends: 920 [2018-01-24 12:10:11,235 INFO L226 Difference]: Without dead ends: 481 [2018-01-24 12:10:11,236 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2018-01-24 12:10:11,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2018-01-24 12:10:11,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 471. [2018-01-24 12:10:11,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2018-01-24 12:10:11,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 499 transitions. [2018-01-24 12:10:11,268 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 499 transitions. Word has length 140 [2018-01-24 12:10:11,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:11,269 INFO L432 AbstractCegarLoop]: Abstraction has 471 states and 499 transitions. [2018-01-24 12:10:11,269 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-01-24 12:10:11,269 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 499 transitions. [2018-01-24 12:10:11,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-01-24 12:10:11,270 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:11,270 INFO L322 BasicCegarLoop]: trace histogram [15, 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] [2018-01-24 12:10:11,270 INFO L371 AbstractCegarLoop]: === Iteration 30 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:11,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1569766383, now seen corresponding path program 2 times [2018-01-24 12:10:11,271 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:11,271 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:11,272 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:11,272 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:11,272 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:11,302 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:11,646 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 0 proven. 665 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:11,647 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:10:11,647 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 12:10:11,653 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-24 12:10:11,687 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 12:10:11,692 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-24 12:10:11,697 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:10:11,802 WARN L1029 $PredicateComparison]: unable to prove that (exists ((|create_data_#t~malloc4.base| Int) (|create_data_#t~malloc3.base| Int)) (and (= (store (store |c_old(#length)| |create_data_#t~malloc3.base| 16) |create_data_#t~malloc4.base| 80) |c_#length|) (= (select (store |c_old(#valid)| |create_data_#t~malloc3.base| 1) |create_data_#t~malloc4.base|) 0) (= 0 (select |c_old(#valid)| |create_data_#t~malloc3.base|)))) is different from true [2018-01-24 12:10:11,936 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:11,938 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2018-01-24 12:10:11,942 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:11,945 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:11,946 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 36 [2018-01-24 12:10:11,946 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:10:11,958 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:10:11,973 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:11,974 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:11,976 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:11,977 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:10:11,977 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-01-24 12:10:11,978 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-01-24 12:10:12,007 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-01-24 12:10:12,008 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:38, output treesize:29 [2018-01-24 12:10:12,143 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 665 trivial. 0 not checked. [2018-01-24 12:10:12,177 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-24 12:10:12,177 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [17] total 25 [2018-01-24 12:10:12,177 INFO L409 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-01-24 12:10:12,178 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-01-24 12:10:12,178 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=399, Unknown=2, NotChecked=44, Total=600 [2018-01-24 12:10:12,178 INFO L87 Difference]: Start difference. First operand 471 states and 499 transitions. Second operand 25 states. [2018-01-24 12:10:13,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:13,171 INFO L93 Difference]: Finished difference Result 966 states and 1034 transitions. [2018-01-24 12:10:13,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-01-24 12:10:13,171 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 147 [2018-01-24 12:10:13,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:13,173 INFO L225 Difference]: With dead ends: 966 [2018-01-24 12:10:13,173 INFO L226 Difference]: Without dead ends: 513 [2018-01-24 12:10:13,174 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=435, Invalid=1238, Unknown=137, NotChecked=82, Total=1892 [2018-01-24 12:10:13,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2018-01-24 12:10:13,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 485. [2018-01-24 12:10:13,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2018-01-24 12:10:13,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 512 transitions. [2018-01-24 12:10:13,207 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 512 transitions. Word has length 147 [2018-01-24 12:10:13,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:13,208 INFO L432 AbstractCegarLoop]: Abstraction has 485 states and 512 transitions. [2018-01-24 12:10:13,208 INFO L433 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-01-24 12:10:13,208 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 512 transitions. [2018-01-24 12:10:13,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-01-24 12:10:13,209 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:13,209 INFO L322 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:13,209 INFO L371 AbstractCegarLoop]: === Iteration 31 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:13,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1299860795, now seen corresponding path program 1 times [2018-01-24 12:10:13,210 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:13,210 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:13,211 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:13,211 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-24 12:10:13,211 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:13,238 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:13,324 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 765 trivial. 0 not checked. [2018-01-24 12:10:13,324 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:10:13,324 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 12:10:13,325 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 12:10:13,325 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 12:10:13,325 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:10:13,325 INFO L87 Difference]: Start difference. First operand 485 states and 512 transitions. Second operand 5 states. [2018-01-24 12:10:13,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:13,595 INFO L93 Difference]: Finished difference Result 485 states and 512 transitions. [2018-01-24 12:10:13,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 12:10:13,595 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2018-01-24 12:10:13,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:13,597 INFO L225 Difference]: With dead ends: 485 [2018-01-24 12:10:13,597 INFO L226 Difference]: Without dead ends: 484 [2018-01-24 12:10:13,598 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-24 12:10:13,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2018-01-24 12:10:13,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2018-01-24 12:10:13,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2018-01-24 12:10:13,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 511 transitions. [2018-01-24 12:10:13,633 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 511 transitions. Word has length 155 [2018-01-24 12:10:13,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:13,634 INFO L432 AbstractCegarLoop]: Abstraction has 484 states and 511 transitions. [2018-01-24 12:10:13,634 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 12:10:13,634 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 511 transitions. [2018-01-24 12:10:13,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-01-24 12:10:13,635 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:13,635 INFO L322 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:13,636 INFO L371 AbstractCegarLoop]: === Iteration 32 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:13,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1299860794, now seen corresponding path program 1 times [2018-01-24 12:10:13,636 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:13,636 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:13,637 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:13,637 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:13,637 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:13,668 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:13,965 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:13,966 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:10:13,966 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 12:10:13,971 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:14,029 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:10:14,052 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:14,072 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-24 12:10:14,073 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 19 [2018-01-24 12:10:14,073 INFO L409 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-01-24 12:10:14,073 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-01-24 12:10:14,073 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2018-01-24 12:10:14,073 INFO L87 Difference]: Start difference. First operand 484 states and 511 transitions. Second operand 19 states. [2018-01-24 12:10:14,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:14,145 INFO L93 Difference]: Finished difference Result 974 states and 1037 transitions. [2018-01-24 12:10:14,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-01-24 12:10:14,146 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 155 [2018-01-24 12:10:14,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:14,147 INFO L225 Difference]: With dead ends: 974 [2018-01-24 12:10:14,147 INFO L226 Difference]: Without dead ends: 508 [2018-01-24 12:10:14,148 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2018-01-24 12:10:14,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2018-01-24 12:10:14,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 498. [2018-01-24 12:10:14,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 498 states. [2018-01-24 12:10:14,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 525 transitions. [2018-01-24 12:10:14,181 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 525 transitions. Word has length 155 [2018-01-24 12:10:14,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:14,182 INFO L432 AbstractCegarLoop]: Abstraction has 498 states and 525 transitions. [2018-01-24 12:10:14,182 INFO L433 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-01-24 12:10:14,182 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 525 transitions. [2018-01-24 12:10:14,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-01-24 12:10:14,183 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:14,184 INFO L322 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:14,184 INFO L371 AbstractCegarLoop]: === Iteration 33 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:14,184 INFO L82 PathProgramCache]: Analyzing trace with hash -198939525, now seen corresponding path program 2 times [2018-01-24 12:10:14,184 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:14,184 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:14,185 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:14,185 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:14,185 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:14,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:14,216 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:14,480 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 0 proven. 872 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:14,480 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:10:14,481 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 12:10:14,485 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-24 12:10:14,513 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 12:10:14,518 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-24 12:10:14,521 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:10:14,606 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2018-01-24 12:10:14,627 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-24 12:10:14,627 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [19] total 24 [2018-01-24 12:10:14,628 INFO L409 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-01-24 12:10:14,628 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-01-24 12:10:14,628 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=369, Unknown=0, NotChecked=0, Total=552 [2018-01-24 12:10:14,628 INFO L87 Difference]: Start difference. First operand 498 states and 525 transitions. Second operand 24 states. [2018-01-24 12:10:14,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:14,954 INFO L93 Difference]: Finished difference Result 995 states and 1065 transitions. [2018-01-24 12:10:14,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-01-24 12:10:14,955 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 162 [2018-01-24 12:10:14,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:14,956 INFO L225 Difference]: With dead ends: 995 [2018-01-24 12:10:14,956 INFO L226 Difference]: Without dead ends: 515 [2018-01-24 12:10:14,957 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2018-01-24 12:10:14,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2018-01-24 12:10:14,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 505. [2018-01-24 12:10:14,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2018-01-24 12:10:14,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 532 transitions. [2018-01-24 12:10:14,990 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 532 transitions. Word has length 162 [2018-01-24 12:10:14,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:14,991 INFO L432 AbstractCegarLoop]: Abstraction has 505 states and 532 transitions. [2018-01-24 12:10:14,991 INFO L433 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-01-24 12:10:14,991 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 532 transitions. [2018-01-24 12:10:14,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-01-24 12:10:14,992 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:14,992 INFO L322 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:14,993 INFO L371 AbstractCegarLoop]: === Iteration 34 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:14,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1667147789, now seen corresponding path program 1 times [2018-01-24 12:10:14,993 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:14,993 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:14,994 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:14,994 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-24 12:10:14,994 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:15,022 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:15,154 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 986 trivial. 0 not checked. [2018-01-24 12:10:15,155 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:10:15,155 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 12:10:15,155 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 12:10:15,155 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 12:10:15,155 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-01-24 12:10:15,156 INFO L87 Difference]: Start difference. First operand 505 states and 532 transitions. Second operand 7 states. [2018-01-24 12:10:15,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:15,415 INFO L93 Difference]: Finished difference Result 520 states and 549 transitions. [2018-01-24 12:10:15,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-24 12:10:15,415 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 170 [2018-01-24 12:10:15,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:15,417 INFO L225 Difference]: With dead ends: 520 [2018-01-24 12:10:15,417 INFO L226 Difference]: Without dead ends: 519 [2018-01-24 12:10:15,417 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-01-24 12:10:15,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2018-01-24 12:10:15,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 504. [2018-01-24 12:10:15,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2018-01-24 12:10:15,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 531 transitions. [2018-01-24 12:10:15,448 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 531 transitions. Word has length 170 [2018-01-24 12:10:15,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:15,449 INFO L432 AbstractCegarLoop]: Abstraction has 504 states and 531 transitions. [2018-01-24 12:10:15,449 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 12:10:15,449 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 531 transitions. [2018-01-24 12:10:15,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-01-24 12:10:15,450 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:15,450 INFO L322 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:15,450 INFO L371 AbstractCegarLoop]: === Iteration 35 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:15,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1667147788, now seen corresponding path program 1 times [2018-01-24 12:10:15,450 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:15,450 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:15,451 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:15,451 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:15,451 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:15,480 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:16,001 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 0 proven. 986 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:16,001 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:10:16,001 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 12:10:16,007 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:16,083 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:10:16,135 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 0 proven. 986 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:16,170 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-24 12:10:16,170 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 21 [2018-01-24 12:10:16,171 INFO L409 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-01-24 12:10:16,171 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-01-24 12:10:16,171 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2018-01-24 12:10:16,172 INFO L87 Difference]: Start difference. First operand 504 states and 531 transitions. Second operand 21 states. [2018-01-24 12:10:16,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:16,295 INFO L93 Difference]: Finished difference Result 1014 states and 1077 transitions. [2018-01-24 12:10:16,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-01-24 12:10:16,296 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 170 [2018-01-24 12:10:16,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:16,298 INFO L225 Difference]: With dead ends: 1014 [2018-01-24 12:10:16,299 INFO L226 Difference]: Without dead ends: 528 [2018-01-24 12:10:16,300 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2018-01-24 12:10:16,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2018-01-24 12:10:16,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 518. [2018-01-24 12:10:16,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2018-01-24 12:10:16,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 545 transitions. [2018-01-24 12:10:16,332 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 545 transitions. Word has length 170 [2018-01-24 12:10:16,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:16,332 INFO L432 AbstractCegarLoop]: Abstraction has 518 states and 545 transitions. [2018-01-24 12:10:16,333 INFO L433 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-01-24 12:10:16,333 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 545 transitions. [2018-01-24 12:10:16,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-01-24 12:10:16,334 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:16,334 INFO L322 BasicCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:16,334 INFO L371 AbstractCegarLoop]: === Iteration 36 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:16,335 INFO L82 PathProgramCache]: Analyzing trace with hash 280714655, now seen corresponding path program 2 times [2018-01-24 12:10:16,335 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:16,335 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:16,336 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:16,336 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:16,336 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:16,368 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:16,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 0 proven. 1107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:16,732 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:10:16,732 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 12:10:16,737 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-24 12:10:16,766 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-24 12:10:16,770 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-24 12:10:16,775 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:10:16,821 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-01-24 12:10:16,823 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-01-24 12:10:16,823 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:10:16,824 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:10:16,831 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-01-24 12:10:16,833 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-01-24 12:10:16,833 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-24 12:10:16,835 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:10:16,840 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:10:16,840 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:33, output treesize:23 [2018-01-24 12:10:16,873 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-01-24 12:10:16,874 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-01-24 12:10:16,874 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:10:16,875 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:10:16,880 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2018-01-24 12:10:16,881 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 11 [2018-01-24 12:10:16,882 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-24 12:10:16,884 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:10:16,886 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:10:16,886 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:37, output treesize:11 [2018-01-24 12:10:16,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1107 trivial. 0 not checked. [2018-01-24 12:10:16,932 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-24 12:10:16,933 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [21] total 27 [2018-01-24 12:10:16,933 INFO L409 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-01-24 12:10:16,933 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-01-24 12:10:16,933 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=478, Unknown=0, NotChecked=0, Total=702 [2018-01-24 12:10:16,933 INFO L87 Difference]: Start difference. First operand 518 states and 545 transitions. Second operand 27 states. [2018-01-24 12:10:17,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:17,489 INFO L93 Difference]: Finished difference Result 1066 states and 1132 transitions. [2018-01-24 12:10:17,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-01-24 12:10:17,489 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 177 [2018-01-24 12:10:17,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:17,491 INFO L225 Difference]: With dead ends: 1066 [2018-01-24 12:10:17,491 INFO L226 Difference]: Without dead ends: 566 [2018-01-24 12:10:17,492 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=239, Invalid=631, Unknown=0, NotChecked=0, Total=870 [2018-01-24 12:10:17,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2018-01-24 12:10:17,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 531. [2018-01-24 12:10:17,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2018-01-24 12:10:17,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 558 transitions. [2018-01-24 12:10:17,512 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 558 transitions. Word has length 177 [2018-01-24 12:10:17,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:17,512 INFO L432 AbstractCegarLoop]: Abstraction has 531 states and 558 transitions. [2018-01-24 12:10:17,512 INFO L433 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-01-24 12:10:17,512 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 558 transitions. [2018-01-24 12:10:17,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-01-24 12:10:17,513 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:17,513 INFO L322 BasicCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:17,513 INFO L371 AbstractCegarLoop]: === Iteration 37 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:17,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1058140492, now seen corresponding path program 1 times [2018-01-24 12:10:17,514 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:17,514 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:17,514 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:17,514 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-24 12:10:17,515 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:17,541 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:17,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1235 backedges. 0 proven. 1235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:17,935 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:10:17,935 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 12:10:17,959 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:18,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:18,037 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:10:18,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1235 backedges. 0 proven. 1235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:10:18,165 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-24 12:10:18,165 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 23 [2018-01-24 12:10:18,165 INFO L409 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-01-24 12:10:18,165 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-01-24 12:10:18,166 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2018-01-24 12:10:18,166 INFO L87 Difference]: Start difference. First operand 531 states and 558 transitions. Second operand 23 states. [2018-01-24 12:10:18,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:18,246 INFO L93 Difference]: Finished difference Result 1058 states and 1121 transitions. [2018-01-24 12:10:18,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-01-24 12:10:18,246 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 184 [2018-01-24 12:10:18,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:18,248 INFO L225 Difference]: With dead ends: 1058 [2018-01-24 12:10:18,248 INFO L226 Difference]: Without dead ends: 545 [2018-01-24 12:10:18,249 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2018-01-24 12:10:18,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2018-01-24 12:10:18,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2018-01-24 12:10:18,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2018-01-24 12:10:18,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 572 transitions. [2018-01-24 12:10:18,269 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 572 transitions. Word has length 184 [2018-01-24 12:10:18,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:18,269 INFO L432 AbstractCegarLoop]: Abstraction has 545 states and 572 transitions. [2018-01-24 12:10:18,269 INFO L433 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-01-24 12:10:18,269 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 572 transitions. [2018-01-24 12:10:18,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-01-24 12:10:18,270 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:18,271 INFO L322 BasicCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:18,271 INFO L371 AbstractCegarLoop]: === Iteration 38 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:18,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1311460639, now seen corresponding path program 2 times [2018-01-24 12:10:18,271 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:18,271 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:18,272 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:18,272 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:18,272 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:18,346 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:18,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1370 trivial. 0 not checked. [2018-01-24 12:10:18,942 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:10:18,942 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 12:10:18,943 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 12:10:18,943 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 12:10:18,943 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-01-24 12:10:18,943 INFO L87 Difference]: Start difference. First operand 545 states and 572 transitions. Second operand 8 states. [2018-01-24 12:10:19,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:19,497 INFO L93 Difference]: Finished difference Result 564 states and 591 transitions. [2018-01-24 12:10:19,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-24 12:10:19,498 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 191 [2018-01-24 12:10:19,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:19,500 INFO L225 Difference]: With dead ends: 564 [2018-01-24 12:10:19,500 INFO L226 Difference]: Without dead ends: 563 [2018-01-24 12:10:19,500 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-01-24 12:10:19,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2018-01-24 12:10:19,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 556. [2018-01-24 12:10:19,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2018-01-24 12:10:19,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 587 transitions. [2018-01-24 12:10:19,539 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 587 transitions. Word has length 191 [2018-01-24 12:10:19,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:19,540 INFO L432 AbstractCegarLoop]: Abstraction has 556 states and 587 transitions. [2018-01-24 12:10:19,540 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 12:10:19,540 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 587 transitions. [2018-01-24 12:10:19,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-01-24 12:10:19,541 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:19,541 INFO L322 BasicCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:19,541 INFO L371 AbstractCegarLoop]: === Iteration 39 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:19,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1311460640, now seen corresponding path program 1 times [2018-01-24 12:10:19,541 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:19,541 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:19,542 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:19,542 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-24 12:10:19,542 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:19,652 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:20,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1370 trivial. 0 not checked. [2018-01-24 12:10:20,304 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:10:20,304 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-01-24 12:10:20,304 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-01-24 12:10:20,304 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-01-24 12:10:20,304 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-01-24 12:10:20,304 INFO L87 Difference]: Start difference. First operand 556 states and 587 transitions. Second operand 12 states. [2018-01-24 12:10:20,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:20,817 INFO L93 Difference]: Finished difference Result 563 states and 589 transitions. [2018-01-24 12:10:20,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-01-24 12:10:20,818 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 191 [2018-01-24 12:10:20,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:20,820 INFO L225 Difference]: With dead ends: 563 [2018-01-24 12:10:20,820 INFO L226 Difference]: Without dead ends: 562 [2018-01-24 12:10:20,821 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2018-01-24 12:10:20,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2018-01-24 12:10:20,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 544. [2018-01-24 12:10:20,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2018-01-24 12:10:20,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 572 transitions. [2018-01-24 12:10:20,856 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 572 transitions. Word has length 191 [2018-01-24 12:10:20,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:20,856 INFO L432 AbstractCegarLoop]: Abstraction has 544 states and 572 transitions. [2018-01-24 12:10:20,856 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-01-24 12:10:20,856 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 572 transitions. [2018-01-24 12:10:20,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-01-24 12:10:20,857 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:20,857 INFO L322 BasicCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:20,857 INFO L371 AbstractCegarLoop]: === Iteration 40 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:20,857 INFO L82 PathProgramCache]: Analyzing trace with hash -166105366, now seen corresponding path program 1 times [2018-01-24 12:10:20,857 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:20,857 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:20,858 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:20,858 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:20,858 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:21,002 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:10:21,810 WARN L143 SmtUtils]: Spent 114ms on a formula simplification that was a NOOP. DAG size: 31 [2018-01-24 12:10:22,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1370 trivial. 0 not checked. [2018-01-24 12:10:22,395 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:10:22,395 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-01-24 12:10:22,395 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-01-24 12:10:22,396 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-01-24 12:10:22,396 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2018-01-24 12:10:22,396 INFO L87 Difference]: Start difference. First operand 544 states and 572 transitions. Second operand 14 states. [2018-01-24 12:10:23,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:10:23,540 INFO L93 Difference]: Finished difference Result 548 states and 576 transitions. [2018-01-24 12:10:23,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-24 12:10:23,540 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 194 [2018-01-24 12:10:23,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:10:23,542 INFO L225 Difference]: With dead ends: 548 [2018-01-24 12:10:23,542 INFO L226 Difference]: Without dead ends: 546 [2018-01-24 12:10:23,542 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2018-01-24 12:10:23,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2018-01-24 12:10:23,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 542. [2018-01-24 12:10:23,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2018-01-24 12:10:23,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 567 transitions. [2018-01-24 12:10:23,578 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 567 transitions. Word has length 194 [2018-01-24 12:10:23,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:10:23,578 INFO L432 AbstractCegarLoop]: Abstraction has 542 states and 567 transitions. [2018-01-24 12:10:23,578 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-01-24 12:10:23,578 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 567 transitions. [2018-01-24 12:10:23,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-01-24 12:10:23,579 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:10:23,580 INFO L322 BasicCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:10:23,580 INFO L371 AbstractCegarLoop]: === Iteration 41 === [create_dataErr0RequiresViolation, create_dataErr14RequiresViolation, create_dataErr37RequiresViolation, create_dataErr19RequiresViolation, create_dataErr5RequiresViolation, create_dataErr3RequiresViolation, create_dataErr11RequiresViolation, create_dataErr29RequiresViolation, create_dataErr32RequiresViolation, create_dataErr16RequiresViolation, create_dataErr24RequiresViolation, create_dataErr34RequiresViolation, create_dataErr39RequiresViolation, create_dataErr8RequiresViolation, create_dataErr6RequiresViolation, create_dataErr26RequiresViolation, create_dataErr17RequiresViolation, create_dataErr36RequiresViolation, create_dataErr27RequiresViolation, create_dataErr30RequiresViolation, create_dataErr13RequiresViolation, create_dataErr23RequiresViolation, create_dataErr9RequiresViolation, create_dataErr33RequiresViolation, create_dataErr2RequiresViolation, create_dataErr4RequiresViolation, create_dataErr10RequiresViolation, create_dataErr28RequiresViolation, create_dataErr38RequiresViolation, create_dataErr20RequiresViolation, create_dataErr18RequiresViolation, create_dataErr1RequiresViolation, create_dataErr31RequiresViolation, create_dataErr35RequiresViolation, create_dataErr21RequiresViolation, create_dataErr22RequiresViolation, create_dataErr12RequiresViolation, create_dataErr25RequiresViolation, create_dataErr7RequiresViolation, create_dataErr15RequiresViolation, freeDataErr2RequiresViolation, freeDataErr4RequiresViolation, freeDataErr5RequiresViolation, freeDataErr3RequiresViolation, freeDataErr0RequiresViolation, freeDataErr1RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr28EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr4RequiresViolation, appendErr8RequiresViolation, appendErr10RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr12RequiresViolation, appendErr11RequiresViolation, appendErr7RequiresViolation, appendErr3RequiresViolation, appendErr2RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr6RequiresViolation]=== [2018-01-24 12:10:23,580 INFO L82 PathProgramCache]: Analyzing trace with hash -166105365, now seen corresponding path program 1 times [2018-01-24 12:10:23,580 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:10:23,580 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:10:23,581 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:23,581 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:10:23,581 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:10:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:10:23,839 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. Received shutdown request... [2018-01-24 12:10:24,195 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Timeout exceeded at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:265) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$1(Interpolator.java:263) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:132) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:220) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:915) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:279) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackTraceAbstractionRefinementStrategy.getTraceCheck(MultiTrackTraceAbstractionRefinementStrategy.java:218) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:113) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:117) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-01-24 12:10:24,199 INFO L168 Benchmark]: Toolchain (without parser) took 34511.81 ms. Allocated memory was 308.8 MB in the beginning and 933.8 MB in the end (delta: 625.0 MB). Free memory was 267.9 MB in the beginning and 581.6 MB in the end (delta: -313.8 MB). Peak memory consumption was 538.4 MB. Max. memory is 5.3 GB. [2018-01-24 12:10:24,200 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 308.8 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 12:10:24,201 INFO L168 Benchmark]: CACSL2BoogieTranslator took 225.31 ms. Allocated memory is still 308.8 MB. Free memory was 267.9 MB in the beginning and 255.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. [2018-01-24 12:10:24,201 INFO L168 Benchmark]: Boogie Preprocessor took 52.77 ms. Allocated memory is still 308.8 MB. Free memory was 255.9 MB in the beginning and 253.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 12:10:24,201 INFO L168 Benchmark]: RCFGBuilder took 769.72 ms. Allocated memory is still 308.8 MB. Free memory was 253.9 MB in the beginning and 205.0 MB in the end (delta: 48.9 MB). Peak memory consumption was 48.9 MB. Max. memory is 5.3 GB. [2018-01-24 12:10:24,202 INFO L168 Benchmark]: TraceAbstraction took 33455.53 ms. Allocated memory was 308.8 MB in the beginning and 933.8 MB in the end (delta: 625.0 MB). Free memory was 205.0 MB in the beginning and 581.6 MB in the end (delta: -376.7 MB). Peak memory consumption was 475.6 MB. Max. memory is 5.3 GB. [2018-01-24 12:10:24,204 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 308.8 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 225.31 ms. Allocated memory is still 308.8 MB. Free memory was 267.9 MB in the beginning and 255.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 52.77 ms. Allocated memory is still 308.8 MB. Free memory was 255.9 MB in the beginning and 253.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 769.72 ms. Allocated memory is still 308.8 MB. Free memory was 253.9 MB in the beginning and 205.0 MB in the end (delta: 48.9 MB). Peak memory consumption was 48.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 33455.53 ms. Allocated memory was 308.8 MB in the beginning and 933.8 MB in the end (delta: 625.0 MB). Free memory was 205.0 MB in the beginning and 581.6 MB in the end (delta: -376.7 MB). Peak memory consumption was 475.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Timeout exceeded de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Timeout exceeded: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:265) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/complex_data_creation_test01_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_12-10-24-213.csv Completed graceful shutdown