java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf -i ../../../trunk/examples/svcomp/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:53:01,444 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:53:01,445 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:53:01,455 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:53:01,455 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:53:01,456 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:53:01,456 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:53:01,458 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:53:01,460 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:53:01,460 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:53:01,461 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:53:01,461 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:53:01,462 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:53:01,463 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:53:01,464 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:53:01,465 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:53:01,467 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:53:01,468 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:53:01,469 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:53:01,470 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:53:01,472 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 04:53:01,472 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 04:53:01,472 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 04:53:01,473 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 04:53:01,474 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 04:53:01,475 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 04:53:01,475 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 04:53:01,475 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 04:53:01,476 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 04:53:01,476 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:53:01,476 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:53:01,477 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-02-04 04:53:01,486 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:53:01,486 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:53:01,488 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:53:01,488 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:53:01,488 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:53:01,488 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:53:01,488 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:53:01,488 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:53:01,489 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:53:01,489 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:53:01,489 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:53:01,489 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:53:01,489 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:53:01,489 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:53:01,489 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:53:01,490 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:53:01,490 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:53:01,490 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:53:01,490 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:53:01,490 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:53:01,490 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:53:01,491 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:53:01,491 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 04:53:01,491 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 04:53:01,491 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:53:01,518 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:53:01,526 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:53:01,529 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:53:01,530 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:53:01,530 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:53:01,530 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/merge_sort_true-unreach-call_true-valid-memsafety.i [2018-02-04 04:53:01,674 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:53:01,675 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:53:01,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:53:01,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:53:01,682 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:53:01,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:53:01" (1/1) ... [2018-02-04 04:53:01,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a688c53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:53:01, skipping insertion in model container [2018-02-04 04:53:01,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:53:01" (1/1) ... [2018-02-04 04:53:01,701 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:53:01,741 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:53:01,851 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:53:01,873 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:53:01,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:53:01 WrapperNode [2018-02-04 04:53:01,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:53:01,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:53:01,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:53:01,883 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:53:01,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:53:01" (1/1) ... [2018-02-04 04:53:01,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:53:01" (1/1) ... [2018-02-04 04:53:01,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:53:01" (1/1) ... [2018-02-04 04:53:01,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:53:01" (1/1) ... [2018-02-04 04:53:01,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:53:01" (1/1) ... [2018-02-04 04:53:01,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:53:01" (1/1) ... [2018-02-04 04:53:01,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:53:01" (1/1) ... [2018-02-04 04:53:01,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:53:01,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:53:01,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:53:01,924 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:53:01,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:53:01" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:53:01,959 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:53:01,960 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:53:01,960 INFO L136 BoogieDeclarations]: Found implementation of procedure fail [2018-02-04 04:53:01,960 INFO L136 BoogieDeclarations]: Found implementation of procedure merge_single_node [2018-02-04 04:53:01,960 INFO L136 BoogieDeclarations]: Found implementation of procedure merge_pair [2018-02-04 04:53:01,960 INFO L136 BoogieDeclarations]: Found implementation of procedure seq_sort_core [2018-02-04 04:53:01,960 INFO L136 BoogieDeclarations]: Found implementation of procedure inspect_before [2018-02-04 04:53:01,960 INFO L136 BoogieDeclarations]: Found implementation of procedure inspect_after [2018-02-04 04:53:01,960 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:53:01,960 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 04:53:01,960 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 04:53:01,960 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 04:53:01,960 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 04:53:01,961 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:53:01,961 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:53:01,961 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:53:01,961 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-02-04 04:53:01,961 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 04:53:01,961 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-02-04 04:53:01,961 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:53:01,961 INFO L128 BoogieDeclarations]: Found specification of procedure fail [2018-02-04 04:53:01,961 INFO L128 BoogieDeclarations]: Found specification of procedure merge_single_node [2018-02-04 04:53:01,961 INFO L128 BoogieDeclarations]: Found specification of procedure merge_pair [2018-02-04 04:53:01,961 INFO L128 BoogieDeclarations]: Found specification of procedure seq_sort_core [2018-02-04 04:53:01,961 INFO L128 BoogieDeclarations]: Found specification of procedure inspect_before [2018-02-04 04:53:01,962 INFO L128 BoogieDeclarations]: Found specification of procedure inspect_after [2018-02-04 04:53:01,962 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:53:01,962 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:53:01,962 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:53:02,544 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:53:02,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:53:02 BoogieIcfgContainer [2018-02-04 04:53:02,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:53:02,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:53:02,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:53:02,547 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:53:02,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:53:01" (1/3) ... [2018-02-04 04:53:02,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd3f319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:53:02, skipping insertion in model container [2018-02-04 04:53:02,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:53:01" (2/3) ... [2018-02-04 04:53:02,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd3f319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:53:02, skipping insertion in model container [2018-02-04 04:53:02,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:53:02" (3/3) ... [2018-02-04 04:53:02,550 INFO L107 eAbstractionObserver]: Analyzing ICFG merge_sort_true-unreach-call_true-valid-memsafety.i [2018-02-04 04:53:02,557 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:53:02,563 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 109 error locations. [2018-02-04 04:53:02,590 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:53:02,590 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:53:02,590 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 04:53:02,590 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 04:53:02,590 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:53:02,590 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:53:02,590 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:53:02,591 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:53:02,591 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:53:02,610 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states. [2018-02-04 04:53:02,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-02-04 04:53:02,628 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:53:02,629 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:53:02,629 INFO L371 AbstractCegarLoop]: === Iteration 1 === [merge_pairErr19RequiresViolation, merge_pairErr24RequiresViolation, merge_pairErr4RequiresViolation, merge_pairErr11RequiresViolation, merge_pairErr16RequiresViolation, merge_pairErr7RequiresViolation, merge_pairErr9RequiresViolation, merge_pairErr2RequiresViolation, merge_pairErr14RequiresViolation, merge_pairErr29RequiresViolation, merge_pairErr17RequiresViolation, merge_pairErr6RequiresViolation, merge_pairErr27RequiresViolation, merge_pairErr26RequiresViolation, merge_pairErr3RequiresViolation, merge_pairErr13RequiresViolation, merge_pairErr23RequiresViolation, merge_pairErr15RequiresViolation, merge_pairErr0RequiresViolation, merge_pairErr10RequiresViolation, merge_pairErr25RequiresViolation, merge_pairErr20RequiresViolation, merge_pairErr22RequiresViolation, merge_pairErr12RequiresViolation, merge_pairErr5RequiresViolation, merge_pairErr18RequiresViolation, merge_pairErr21RequiresViolation, merge_pairErr1RequiresViolation, merge_pairErr28RequiresViolation, merge_pairErr8RequiresViolation, merge_single_nodeErr4RequiresViolation, merge_single_nodeErr0RequiresViolation, merge_single_nodeErr9RequiresViolation, merge_single_nodeErr7RequiresViolation, merge_single_nodeErr11RequiresViolation, merge_single_nodeErr2RequiresViolation, merge_single_nodeErr1RequiresViolation, merge_single_nodeErr13RequiresViolation, merge_single_nodeErr6RequiresViolation, merge_single_nodeErr5RequiresViolation, merge_single_nodeErr10RequiresViolation, merge_single_nodeErr3RequiresViolation, merge_single_nodeErr12RequiresViolation, merge_single_nodeErr8RequiresViolation, seq_sort_coreErr13RequiresViolation, seq_sort_coreErr7RequiresViolation, seq_sort_coreErr6RequiresViolation, seq_sort_coreErr10RequiresViolation, seq_sort_coreErr1RequiresViolation, seq_sort_coreErr3RequiresViolation, seq_sort_coreErr8RequiresViolation, seq_sort_coreErr12RequiresViolation, seq_sort_coreErr11RequiresViolation, seq_sort_coreErr0RequiresViolation, seq_sort_coreErr4RequiresViolation, seq_sort_coreErr5RequiresViolation, seq_sort_coreErr2RequiresViolation, seq_sort_coreErr9RequiresViolation, inspect_beforeErr15RequiresViolation, inspect_beforeErr7RequiresViolation, inspect_beforeErr11RequiresViolation, inspect_beforeErr3RequiresViolation, inspect_beforeErr2RequiresViolation, inspect_beforeErr10RequiresViolation, inspect_beforeErr16RequiresViolation, inspect_beforeErr1RequiresViolation, inspect_beforeErr6RequiresViolation, inspect_beforeErr18RequiresViolation, inspect_beforeErr13RequiresViolation, inspect_beforeErr0RequiresViolation, inspect_beforeErr9RequiresViolation, inspect_beforeErr4RequiresViolation, inspect_beforeErr17RequiresViolation, inspect_beforeErr8RequiresViolation, inspect_beforeErr12RequiresViolation, inspect_beforeErr14RequiresViolation, inspect_beforeErr5RequiresViolation, inspect_beforeErr19RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, inspect_afterErr8RequiresViolation, inspect_afterErr10RequiresViolation, inspect_afterErr1RequiresViolation, inspect_afterErr0RequiresViolation, inspect_afterErr6RequiresViolation, inspect_afterErr7RequiresViolation, inspect_afterErr11RequiresViolation, inspect_afterErr5RequiresViolation, inspect_afterErr2RequiresViolation, inspect_afterErr4RequiresViolation, inspect_afterErr3RequiresViolation, inspect_afterErr9RequiresViolation]=== [2018-02-04 04:53:02,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1556477250, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:53:02,645 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:53:02,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:53:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:53:02,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:02,796 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:53:02,796 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:53:02,797 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:53:02,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:02,798 INFO L182 omatonBuilderFactory]: Interpolants [323#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 318#true, 319#false] [2018-02-04 04:53:02,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:02,799 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 04:53:02,810 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 04:53:02,810 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:53:02,813 INFO L87 Difference]: Start difference. First operand 315 states. Second operand 3 states. [2018-02-04 04:53:03,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:53:03,175 INFO L93 Difference]: Finished difference Result 356 states and 391 transitions. [2018-02-04 04:53:03,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 04:53:03,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-02-04 04:53:03,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:53:03,190 INFO L225 Difference]: With dead ends: 356 [2018-02-04 04:53:03,190 INFO L226 Difference]: Without dead ends: 338 [2018-02-04 04:53:03,191 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:53:03,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2018-02-04 04:53:03,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 300. [2018-02-04 04:53:03,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2018-02-04 04:53:03,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 314 transitions. [2018-02-04 04:53:03,289 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 314 transitions. Word has length 9 [2018-02-04 04:53:03,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:53:03,289 INFO L432 AbstractCegarLoop]: Abstraction has 300 states and 314 transitions. [2018-02-04 04:53:03,289 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 04:53:03,289 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 314 transitions. [2018-02-04 04:53:03,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-04 04:53:03,290 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:53:03,290 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:53:03,290 INFO L371 AbstractCegarLoop]: === Iteration 2 === [merge_pairErr19RequiresViolation, merge_pairErr24RequiresViolation, merge_pairErr4RequiresViolation, merge_pairErr11RequiresViolation, merge_pairErr16RequiresViolation, merge_pairErr7RequiresViolation, merge_pairErr9RequiresViolation, merge_pairErr2RequiresViolation, merge_pairErr14RequiresViolation, merge_pairErr29RequiresViolation, merge_pairErr17RequiresViolation, merge_pairErr6RequiresViolation, merge_pairErr27RequiresViolation, merge_pairErr26RequiresViolation, merge_pairErr3RequiresViolation, merge_pairErr13RequiresViolation, merge_pairErr23RequiresViolation, merge_pairErr15RequiresViolation, merge_pairErr0RequiresViolation, merge_pairErr10RequiresViolation, merge_pairErr25RequiresViolation, merge_pairErr20RequiresViolation, merge_pairErr22RequiresViolation, merge_pairErr12RequiresViolation, merge_pairErr5RequiresViolation, merge_pairErr18RequiresViolation, merge_pairErr21RequiresViolation, merge_pairErr1RequiresViolation, merge_pairErr28RequiresViolation, merge_pairErr8RequiresViolation, merge_single_nodeErr4RequiresViolation, merge_single_nodeErr0RequiresViolation, merge_single_nodeErr9RequiresViolation, merge_single_nodeErr7RequiresViolation, merge_single_nodeErr11RequiresViolation, merge_single_nodeErr2RequiresViolation, merge_single_nodeErr1RequiresViolation, merge_single_nodeErr13RequiresViolation, merge_single_nodeErr6RequiresViolation, merge_single_nodeErr5RequiresViolation, merge_single_nodeErr10RequiresViolation, merge_single_nodeErr3RequiresViolation, merge_single_nodeErr12RequiresViolation, merge_single_nodeErr8RequiresViolation, seq_sort_coreErr13RequiresViolation, seq_sort_coreErr7RequiresViolation, seq_sort_coreErr6RequiresViolation, seq_sort_coreErr10RequiresViolation, seq_sort_coreErr1RequiresViolation, seq_sort_coreErr3RequiresViolation, seq_sort_coreErr8RequiresViolation, seq_sort_coreErr12RequiresViolation, seq_sort_coreErr11RequiresViolation, seq_sort_coreErr0RequiresViolation, seq_sort_coreErr4RequiresViolation, seq_sort_coreErr5RequiresViolation, seq_sort_coreErr2RequiresViolation, seq_sort_coreErr9RequiresViolation, inspect_beforeErr15RequiresViolation, inspect_beforeErr7RequiresViolation, inspect_beforeErr11RequiresViolation, inspect_beforeErr3RequiresViolation, inspect_beforeErr2RequiresViolation, inspect_beforeErr10RequiresViolation, inspect_beforeErr16RequiresViolation, inspect_beforeErr1RequiresViolation, inspect_beforeErr6RequiresViolation, inspect_beforeErr18RequiresViolation, inspect_beforeErr13RequiresViolation, inspect_beforeErr0RequiresViolation, inspect_beforeErr9RequiresViolation, inspect_beforeErr4RequiresViolation, inspect_beforeErr17RequiresViolation, inspect_beforeErr8RequiresViolation, inspect_beforeErr12RequiresViolation, inspect_beforeErr14RequiresViolation, inspect_beforeErr5RequiresViolation, inspect_beforeErr19RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, inspect_afterErr8RequiresViolation, inspect_afterErr10RequiresViolation, inspect_afterErr1RequiresViolation, inspect_afterErr0RequiresViolation, inspect_afterErr6RequiresViolation, inspect_afterErr7RequiresViolation, inspect_afterErr11RequiresViolation, inspect_afterErr5RequiresViolation, inspect_afterErr2RequiresViolation, inspect_afterErr4RequiresViolation, inspect_afterErr3RequiresViolation, inspect_afterErr9RequiresViolation]=== [2018-02-04 04:53:03,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1650764336, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:53:03,293 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:53:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:53:03,301 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:53:03,304 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:53:03,304 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:53:03,305 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:53:03,305 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:53:03,334 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |c_#length| %1 8)) :qid itp)) :qid itp)) is different from true [2018-02-04 04:53:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:53:03,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:03,379 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:53:03,379 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:53:03,379 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:53:03,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:03,380 INFO L182 omatonBuilderFactory]: Interpolants [980#true, 981#false, 985#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |#length| %1 8)) :qid itp)) :qid itp)), 986#(and (= 8 (select |#length| |main_#t~malloc41.base|)) (= 0 |main_#t~malloc41.offset|)), 987#(and (<= (+ main_~node~1.offset 4) (select |#length| main_~node~1.base)) (<= 0 main_~node~1.offset)), 988#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:53:03,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:03,381 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:53:03,381 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:53:03,381 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 04:53:03,381 INFO L87 Difference]: Start difference. First operand 300 states and 314 transitions. Second operand 6 states. [2018-02-04 04:53:04,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:53:04,072 INFO L93 Difference]: Finished difference Result 364 states and 390 transitions. [2018-02-04 04:53:04,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:53:04,073 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-02-04 04:53:04,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:53:04,074 INFO L225 Difference]: With dead ends: 364 [2018-02-04 04:53:04,074 INFO L226 Difference]: Without dead ends: 364 [2018-02-04 04:53:04,075 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=28, Unknown=2, NotChecked=10, Total=56 [2018-02-04 04:53:04,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2018-02-04 04:53:04,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 299. [2018-02-04 04:53:04,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2018-02-04 04:53:04,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 313 transitions. [2018-02-04 04:53:04,085 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 313 transitions. Word has length 13 [2018-02-04 04:53:04,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:53:04,085 INFO L432 AbstractCegarLoop]: Abstraction has 299 states and 313 transitions. [2018-02-04 04:53:04,085 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:53:04,085 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 313 transitions. [2018-02-04 04:53:04,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-04 04:53:04,086 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:53:04,086 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:53:04,086 INFO L371 AbstractCegarLoop]: === Iteration 3 === [merge_pairErr19RequiresViolation, merge_pairErr24RequiresViolation, merge_pairErr4RequiresViolation, merge_pairErr11RequiresViolation, merge_pairErr16RequiresViolation, merge_pairErr7RequiresViolation, merge_pairErr9RequiresViolation, merge_pairErr2RequiresViolation, merge_pairErr14RequiresViolation, merge_pairErr29RequiresViolation, merge_pairErr17RequiresViolation, merge_pairErr6RequiresViolation, merge_pairErr27RequiresViolation, merge_pairErr26RequiresViolation, merge_pairErr3RequiresViolation, merge_pairErr13RequiresViolation, merge_pairErr23RequiresViolation, merge_pairErr15RequiresViolation, merge_pairErr0RequiresViolation, merge_pairErr10RequiresViolation, merge_pairErr25RequiresViolation, merge_pairErr20RequiresViolation, merge_pairErr22RequiresViolation, merge_pairErr12RequiresViolation, merge_pairErr5RequiresViolation, merge_pairErr18RequiresViolation, merge_pairErr21RequiresViolation, merge_pairErr1RequiresViolation, merge_pairErr28RequiresViolation, merge_pairErr8RequiresViolation, merge_single_nodeErr4RequiresViolation, merge_single_nodeErr0RequiresViolation, merge_single_nodeErr9RequiresViolation, merge_single_nodeErr7RequiresViolation, merge_single_nodeErr11RequiresViolation, merge_single_nodeErr2RequiresViolation, merge_single_nodeErr1RequiresViolation, merge_single_nodeErr13RequiresViolation, merge_single_nodeErr6RequiresViolation, merge_single_nodeErr5RequiresViolation, merge_single_nodeErr10RequiresViolation, merge_single_nodeErr3RequiresViolation, merge_single_nodeErr12RequiresViolation, merge_single_nodeErr8RequiresViolation, seq_sort_coreErr13RequiresViolation, seq_sort_coreErr7RequiresViolation, seq_sort_coreErr6RequiresViolation, seq_sort_coreErr10RequiresViolation, seq_sort_coreErr1RequiresViolation, seq_sort_coreErr3RequiresViolation, seq_sort_coreErr8RequiresViolation, seq_sort_coreErr12RequiresViolation, seq_sort_coreErr11RequiresViolation, seq_sort_coreErr0RequiresViolation, seq_sort_coreErr4RequiresViolation, seq_sort_coreErr5RequiresViolation, seq_sort_coreErr2RequiresViolation, seq_sort_coreErr9RequiresViolation, inspect_beforeErr15RequiresViolation, inspect_beforeErr7RequiresViolation, inspect_beforeErr11RequiresViolation, inspect_beforeErr3RequiresViolation, inspect_beforeErr2RequiresViolation, inspect_beforeErr10RequiresViolation, inspect_beforeErr16RequiresViolation, inspect_beforeErr1RequiresViolation, inspect_beforeErr6RequiresViolation, inspect_beforeErr18RequiresViolation, inspect_beforeErr13RequiresViolation, inspect_beforeErr0RequiresViolation, inspect_beforeErr9RequiresViolation, inspect_beforeErr4RequiresViolation, inspect_beforeErr17RequiresViolation, inspect_beforeErr8RequiresViolation, inspect_beforeErr12RequiresViolation, inspect_beforeErr14RequiresViolation, inspect_beforeErr5RequiresViolation, inspect_beforeErr19RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, inspect_afterErr8RequiresViolation, inspect_afterErr10RequiresViolation, inspect_afterErr1RequiresViolation, inspect_afterErr0RequiresViolation, inspect_afterErr6RequiresViolation, inspect_afterErr7RequiresViolation, inspect_afterErr11RequiresViolation, inspect_afterErr5RequiresViolation, inspect_afterErr2RequiresViolation, inspect_afterErr4RequiresViolation, inspect_afterErr3RequiresViolation, inspect_afterErr9RequiresViolation]=== [2018-02-04 04:53:04,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1650764335, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:53:04,096 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:53:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:53:04,105 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:53:04,108 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:53:04,108 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:53:04,108 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:53:04,109 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:53:04,113 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |c_#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)) is different from true [2018-02-04 04:53:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:53:04,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:04,163 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:53:04,164 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:53:04,164 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:53:04,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:04,165 INFO L182 omatonBuilderFactory]: Interpolants [1664#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 1656#true, 1657#false, 1661#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 1662#(= 1 (select |#valid| |main_#t~malloc41.base|)), 1663#(= 1 (select |#valid| main_~node~1.base))] [2018-02-04 04:53:04,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:04,165 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:53:04,165 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:53:04,166 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 04:53:04,166 INFO L87 Difference]: Start difference. First operand 299 states and 313 transitions. Second operand 6 states. [2018-02-04 04:53:04,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:53:04,557 INFO L93 Difference]: Finished difference Result 353 states and 378 transitions. [2018-02-04 04:53:04,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:53:04,563 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-02-04 04:53:04,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:53:04,564 INFO L225 Difference]: With dead ends: 353 [2018-02-04 04:53:04,564 INFO L226 Difference]: Without dead ends: 353 [2018-02-04 04:53:04,565 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=28, Unknown=2, NotChecked=10, Total=56 [2018-02-04 04:53:04,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2018-02-04 04:53:04,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 297. [2018-02-04 04:53:04,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2018-02-04 04:53:04,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 311 transitions. [2018-02-04 04:53:04,576 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 311 transitions. Word has length 13 [2018-02-04 04:53:04,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:53:04,577 INFO L432 AbstractCegarLoop]: Abstraction has 297 states and 311 transitions. [2018-02-04 04:53:04,577 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:53:04,577 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 311 transitions. [2018-02-04 04:53:04,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 04:53:04,577 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:53:04,578 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:53:04,578 INFO L371 AbstractCegarLoop]: === Iteration 4 === [merge_pairErr19RequiresViolation, merge_pairErr24RequiresViolation, merge_pairErr4RequiresViolation, merge_pairErr11RequiresViolation, merge_pairErr16RequiresViolation, merge_pairErr7RequiresViolation, merge_pairErr9RequiresViolation, merge_pairErr2RequiresViolation, merge_pairErr14RequiresViolation, merge_pairErr29RequiresViolation, merge_pairErr17RequiresViolation, merge_pairErr6RequiresViolation, merge_pairErr27RequiresViolation, merge_pairErr26RequiresViolation, merge_pairErr3RequiresViolation, merge_pairErr13RequiresViolation, merge_pairErr23RequiresViolation, merge_pairErr15RequiresViolation, merge_pairErr0RequiresViolation, merge_pairErr10RequiresViolation, merge_pairErr25RequiresViolation, merge_pairErr20RequiresViolation, merge_pairErr22RequiresViolation, merge_pairErr12RequiresViolation, merge_pairErr5RequiresViolation, merge_pairErr18RequiresViolation, merge_pairErr21RequiresViolation, merge_pairErr1RequiresViolation, merge_pairErr28RequiresViolation, merge_pairErr8RequiresViolation, merge_single_nodeErr4RequiresViolation, merge_single_nodeErr0RequiresViolation, merge_single_nodeErr9RequiresViolation, merge_single_nodeErr7RequiresViolation, merge_single_nodeErr11RequiresViolation, merge_single_nodeErr2RequiresViolation, merge_single_nodeErr1RequiresViolation, merge_single_nodeErr13RequiresViolation, merge_single_nodeErr6RequiresViolation, merge_single_nodeErr5RequiresViolation, merge_single_nodeErr10RequiresViolation, merge_single_nodeErr3RequiresViolation, merge_single_nodeErr12RequiresViolation, merge_single_nodeErr8RequiresViolation, seq_sort_coreErr13RequiresViolation, seq_sort_coreErr7RequiresViolation, seq_sort_coreErr6RequiresViolation, seq_sort_coreErr10RequiresViolation, seq_sort_coreErr1RequiresViolation, seq_sort_coreErr3RequiresViolation, seq_sort_coreErr8RequiresViolation, seq_sort_coreErr12RequiresViolation, seq_sort_coreErr11RequiresViolation, seq_sort_coreErr0RequiresViolation, seq_sort_coreErr4RequiresViolation, seq_sort_coreErr5RequiresViolation, seq_sort_coreErr2RequiresViolation, seq_sort_coreErr9RequiresViolation, inspect_beforeErr15RequiresViolation, inspect_beforeErr7RequiresViolation, inspect_beforeErr11RequiresViolation, inspect_beforeErr3RequiresViolation, inspect_beforeErr2RequiresViolation, inspect_beforeErr10RequiresViolation, inspect_beforeErr16RequiresViolation, inspect_beforeErr1RequiresViolation, inspect_beforeErr6RequiresViolation, inspect_beforeErr18RequiresViolation, inspect_beforeErr13RequiresViolation, inspect_beforeErr0RequiresViolation, inspect_beforeErr9RequiresViolation, inspect_beforeErr4RequiresViolation, inspect_beforeErr17RequiresViolation, inspect_beforeErr8RequiresViolation, inspect_beforeErr12RequiresViolation, inspect_beforeErr14RequiresViolation, inspect_beforeErr5RequiresViolation, inspect_beforeErr19RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, inspect_afterErr8RequiresViolation, inspect_afterErr10RequiresViolation, inspect_afterErr1RequiresViolation, inspect_afterErr0RequiresViolation, inspect_afterErr6RequiresViolation, inspect_afterErr7RequiresViolation, inspect_afterErr11RequiresViolation, inspect_afterErr5RequiresViolation, inspect_afterErr2RequiresViolation, inspect_afterErr4RequiresViolation, inspect_afterErr3RequiresViolation, inspect_afterErr9RequiresViolation]=== [2018-02-04 04:53:04,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1541602513, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:53:04,584 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:53:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:53:04,592 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:53:04,594 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:53:04,594 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:53:04,594 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:53:04,594 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:53:04,604 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |c_#length| %1 8)) :qid itp)) :qid itp)) is different from true [2018-02-04 04:53:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:53:04,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:04,636 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:53:04,636 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:53:04,636 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:53:04,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:04,637 INFO L182 omatonBuilderFactory]: Interpolants [2320#false, 2324#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |#length| %1 8)) :qid itp)) :qid itp)), 2325#(and (= 8 (select |#length| |main_#t~malloc41.base|)) (= 0 |main_#t~malloc41.offset|)), 2326#(and (<= 0 (+ main_~node~1.offset 4)) (<= (+ main_~node~1.offset 8) (select |#length| main_~node~1.base))), 2327#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 2319#true] [2018-02-04 04:53:04,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:04,637 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:53:04,637 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:53:04,637 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 04:53:04,637 INFO L87 Difference]: Start difference. First operand 297 states and 311 transitions. Second operand 6 states. [2018-02-04 04:53:05,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:53:05,096 INFO L93 Difference]: Finished difference Result 361 states and 387 transitions. [2018-02-04 04:53:05,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:53:05,096 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-02-04 04:53:05,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:53:05,098 INFO L225 Difference]: With dead ends: 361 [2018-02-04 04:53:05,098 INFO L226 Difference]: Without dead ends: 361 [2018-02-04 04:53:05,098 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=28, Unknown=2, NotChecked=10, Total=56 [2018-02-04 04:53:05,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2018-02-04 04:53:05,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 296. [2018-02-04 04:53:05,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2018-02-04 04:53:05,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 310 transitions. [2018-02-04 04:53:05,107 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 310 transitions. Word has length 15 [2018-02-04 04:53:05,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:53:05,107 INFO L432 AbstractCegarLoop]: Abstraction has 296 states and 310 transitions. [2018-02-04 04:53:05,107 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:53:05,107 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 310 transitions. [2018-02-04 04:53:05,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-04 04:53:05,107 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:53:05,108 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:53:05,108 INFO L371 AbstractCegarLoop]: === Iteration 5 === [merge_pairErr19RequiresViolation, merge_pairErr24RequiresViolation, merge_pairErr4RequiresViolation, merge_pairErr11RequiresViolation, merge_pairErr16RequiresViolation, merge_pairErr7RequiresViolation, merge_pairErr9RequiresViolation, merge_pairErr2RequiresViolation, merge_pairErr14RequiresViolation, merge_pairErr29RequiresViolation, merge_pairErr17RequiresViolation, merge_pairErr6RequiresViolation, merge_pairErr27RequiresViolation, merge_pairErr26RequiresViolation, merge_pairErr3RequiresViolation, merge_pairErr13RequiresViolation, merge_pairErr23RequiresViolation, merge_pairErr15RequiresViolation, merge_pairErr0RequiresViolation, merge_pairErr10RequiresViolation, merge_pairErr25RequiresViolation, merge_pairErr20RequiresViolation, merge_pairErr22RequiresViolation, merge_pairErr12RequiresViolation, merge_pairErr5RequiresViolation, merge_pairErr18RequiresViolation, merge_pairErr21RequiresViolation, merge_pairErr1RequiresViolation, merge_pairErr28RequiresViolation, merge_pairErr8RequiresViolation, merge_single_nodeErr4RequiresViolation, merge_single_nodeErr0RequiresViolation, merge_single_nodeErr9RequiresViolation, merge_single_nodeErr7RequiresViolation, merge_single_nodeErr11RequiresViolation, merge_single_nodeErr2RequiresViolation, merge_single_nodeErr1RequiresViolation, merge_single_nodeErr13RequiresViolation, merge_single_nodeErr6RequiresViolation, merge_single_nodeErr5RequiresViolation, merge_single_nodeErr10RequiresViolation, merge_single_nodeErr3RequiresViolation, merge_single_nodeErr12RequiresViolation, merge_single_nodeErr8RequiresViolation, seq_sort_coreErr13RequiresViolation, seq_sort_coreErr7RequiresViolation, seq_sort_coreErr6RequiresViolation, seq_sort_coreErr10RequiresViolation, seq_sort_coreErr1RequiresViolation, seq_sort_coreErr3RequiresViolation, seq_sort_coreErr8RequiresViolation, seq_sort_coreErr12RequiresViolation, seq_sort_coreErr11RequiresViolation, seq_sort_coreErr0RequiresViolation, seq_sort_coreErr4RequiresViolation, seq_sort_coreErr5RequiresViolation, seq_sort_coreErr2RequiresViolation, seq_sort_coreErr9RequiresViolation, inspect_beforeErr15RequiresViolation, inspect_beforeErr7RequiresViolation, inspect_beforeErr11RequiresViolation, inspect_beforeErr3RequiresViolation, inspect_beforeErr2RequiresViolation, inspect_beforeErr10RequiresViolation, inspect_beforeErr16RequiresViolation, inspect_beforeErr1RequiresViolation, inspect_beforeErr6RequiresViolation, inspect_beforeErr18RequiresViolation, inspect_beforeErr13RequiresViolation, inspect_beforeErr0RequiresViolation, inspect_beforeErr9RequiresViolation, inspect_beforeErr4RequiresViolation, inspect_beforeErr17RequiresViolation, inspect_beforeErr8RequiresViolation, inspect_beforeErr12RequiresViolation, inspect_beforeErr14RequiresViolation, inspect_beforeErr5RequiresViolation, inspect_beforeErr19RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, inspect_afterErr8RequiresViolation, inspect_afterErr10RequiresViolation, inspect_afterErr1RequiresViolation, inspect_afterErr0RequiresViolation, inspect_afterErr6RequiresViolation, inspect_afterErr7RequiresViolation, inspect_afterErr11RequiresViolation, inspect_afterErr5RequiresViolation, inspect_afterErr2RequiresViolation, inspect_afterErr4RequiresViolation, inspect_afterErr3RequiresViolation, inspect_afterErr9RequiresViolation]=== [2018-02-04 04:53:05,108 INFO L82 PathProgramCache]: Analyzing trace with hash 45229303, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:53:05,116 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:53:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:53:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:53:05,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:05,182 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:53:05,183 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 04:53:05,183 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:53:05,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:05,183 INFO L182 omatonBuilderFactory]: Interpolants [2994#(and (= 0 main_~data~0.offset) (= 0 main_~data~0.base)), 2995#(and (= 0 |inspect_before_#in~shape.offset|) (= 0 |inspect_before_#in~shape.base|)), 2996#(and (= inspect_before_~shape.offset 0) (= inspect_before_~shape.base 0)), 2997#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 2989#true, 2990#false] [2018-02-04 04:53:05,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:05,184 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:53:05,184 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:53:05,184 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:53:05,184 INFO L87 Difference]: Start difference. First operand 296 states and 310 transitions. Second operand 6 states. [2018-02-04 04:53:05,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:53:05,666 INFO L93 Difference]: Finished difference Result 336 states and 351 transitions. [2018-02-04 04:53:05,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:53:05,667 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-02-04 04:53:05,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:53:05,668 INFO L225 Difference]: With dead ends: 336 [2018-02-04 04:53:05,669 INFO L226 Difference]: Without dead ends: 335 [2018-02-04 04:53:05,669 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-02-04 04:53:05,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2018-02-04 04:53:05,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 295. [2018-02-04 04:53:05,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2018-02-04 04:53:05,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 308 transitions. [2018-02-04 04:53:05,677 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 308 transitions. Word has length 17 [2018-02-04 04:53:05,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:53:05,677 INFO L432 AbstractCegarLoop]: Abstraction has 295 states and 308 transitions. [2018-02-04 04:53:05,677 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:53:05,677 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 308 transitions. [2018-02-04 04:53:05,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 04:53:05,678 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:53:05,678 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:53:05,678 INFO L371 AbstractCegarLoop]: === Iteration 6 === [merge_pairErr19RequiresViolation, merge_pairErr24RequiresViolation, merge_pairErr4RequiresViolation, merge_pairErr11RequiresViolation, merge_pairErr16RequiresViolation, merge_pairErr7RequiresViolation, merge_pairErr9RequiresViolation, merge_pairErr2RequiresViolation, merge_pairErr14RequiresViolation, merge_pairErr29RequiresViolation, merge_pairErr17RequiresViolation, merge_pairErr6RequiresViolation, merge_pairErr27RequiresViolation, merge_pairErr26RequiresViolation, merge_pairErr3RequiresViolation, merge_pairErr13RequiresViolation, merge_pairErr23RequiresViolation, merge_pairErr15RequiresViolation, merge_pairErr0RequiresViolation, merge_pairErr10RequiresViolation, merge_pairErr25RequiresViolation, merge_pairErr20RequiresViolation, merge_pairErr22RequiresViolation, merge_pairErr12RequiresViolation, merge_pairErr5RequiresViolation, merge_pairErr18RequiresViolation, merge_pairErr21RequiresViolation, merge_pairErr1RequiresViolation, merge_pairErr28RequiresViolation, merge_pairErr8RequiresViolation, merge_single_nodeErr4RequiresViolation, merge_single_nodeErr0RequiresViolation, merge_single_nodeErr9RequiresViolation, merge_single_nodeErr7RequiresViolation, merge_single_nodeErr11RequiresViolation, merge_single_nodeErr2RequiresViolation, merge_single_nodeErr1RequiresViolation, merge_single_nodeErr13RequiresViolation, merge_single_nodeErr6RequiresViolation, merge_single_nodeErr5RequiresViolation, merge_single_nodeErr10RequiresViolation, merge_single_nodeErr3RequiresViolation, merge_single_nodeErr12RequiresViolation, merge_single_nodeErr8RequiresViolation, seq_sort_coreErr13RequiresViolation, seq_sort_coreErr7RequiresViolation, seq_sort_coreErr6RequiresViolation, seq_sort_coreErr10RequiresViolation, seq_sort_coreErr1RequiresViolation, seq_sort_coreErr3RequiresViolation, seq_sort_coreErr8RequiresViolation, seq_sort_coreErr12RequiresViolation, seq_sort_coreErr11RequiresViolation, seq_sort_coreErr0RequiresViolation, seq_sort_coreErr4RequiresViolation, seq_sort_coreErr5RequiresViolation, seq_sort_coreErr2RequiresViolation, seq_sort_coreErr9RequiresViolation, inspect_beforeErr15RequiresViolation, inspect_beforeErr7RequiresViolation, inspect_beforeErr11RequiresViolation, inspect_beforeErr3RequiresViolation, inspect_beforeErr2RequiresViolation, inspect_beforeErr10RequiresViolation, inspect_beforeErr16RequiresViolation, inspect_beforeErr1RequiresViolation, inspect_beforeErr6RequiresViolation, inspect_beforeErr18RequiresViolation, inspect_beforeErr13RequiresViolation, inspect_beforeErr0RequiresViolation, inspect_beforeErr9RequiresViolation, inspect_beforeErr4RequiresViolation, inspect_beforeErr17RequiresViolation, inspect_beforeErr8RequiresViolation, inspect_beforeErr12RequiresViolation, inspect_beforeErr14RequiresViolation, inspect_beforeErr5RequiresViolation, inspect_beforeErr19RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, inspect_afterErr8RequiresViolation, inspect_afterErr10RequiresViolation, inspect_afterErr1RequiresViolation, inspect_afterErr0RequiresViolation, inspect_afterErr6RequiresViolation, inspect_afterErr7RequiresViolation, inspect_afterErr11RequiresViolation, inspect_afterErr5RequiresViolation, inspect_afterErr2RequiresViolation, inspect_afterErr4RequiresViolation, inspect_afterErr3RequiresViolation, inspect_afterErr9RequiresViolation]=== [2018-02-04 04:53:05,678 INFO L82 PathProgramCache]: Analyzing trace with hash 963226955, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) [2018-02-04 04:53:05,682 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:53:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:53:05,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:53:05,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:05,743 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:53:05,743 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:53:05,744 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:53:05,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:05,744 INFO L182 omatonBuilderFactory]: Interpolants [3632#false, 3636#(and (= 0 |main_#t~malloc45.offset|) (= 8 (select |#length| |main_#t~malloc45.base|))), 3637#(and (<= 0 main_~item~0.offset) (<= (+ main_~item~0.offset 4) (select |#length| main_~item~0.base))), 3638#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 3631#true] [2018-02-04 04:53:05,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:05,745 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:53:05,745 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:53:05,745 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:53:05,745 INFO L87 Difference]: Start difference. First operand 295 states and 308 transitions. Second operand 5 states. [2018-02-04 04:53:06,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:53:06,243 INFO L93 Difference]: Finished difference Result 350 states and 370 transitions. [2018-02-04 04:53:06,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:53:06,246 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-02-04 04:53:06,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:53:06,247 INFO L225 Difference]: With dead ends: 350 [2018-02-04 04:53:06,247 INFO L226 Difference]: Without dead ends: 350 [2018-02-04 04:53:06,248 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:53:06,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2018-02-04 04:53:06,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 294. [2018-02-04 04:53:06,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2018-02-04 04:53:06,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 307 transitions. [2018-02-04 04:53:06,256 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 307 transitions. Word has length 20 [2018-02-04 04:53:06,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:53:06,256 INFO L432 AbstractCegarLoop]: Abstraction has 294 states and 307 transitions. [2018-02-04 04:53:06,256 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:53:06,256 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 307 transitions. [2018-02-04 04:53:06,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 04:53:06,257 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:53:06,257 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:53:06,257 INFO L371 AbstractCegarLoop]: === Iteration 7 === [merge_pairErr19RequiresViolation, merge_pairErr24RequiresViolation, merge_pairErr4RequiresViolation, merge_pairErr11RequiresViolation, merge_pairErr16RequiresViolation, merge_pairErr7RequiresViolation, merge_pairErr9RequiresViolation, merge_pairErr2RequiresViolation, merge_pairErr14RequiresViolation, merge_pairErr29RequiresViolation, merge_pairErr17RequiresViolation, merge_pairErr6RequiresViolation, merge_pairErr27RequiresViolation, merge_pairErr26RequiresViolation, merge_pairErr3RequiresViolation, merge_pairErr13RequiresViolation, merge_pairErr23RequiresViolation, merge_pairErr15RequiresViolation, merge_pairErr0RequiresViolation, merge_pairErr10RequiresViolation, merge_pairErr25RequiresViolation, merge_pairErr20RequiresViolation, merge_pairErr22RequiresViolation, merge_pairErr12RequiresViolation, merge_pairErr5RequiresViolation, merge_pairErr18RequiresViolation, merge_pairErr21RequiresViolation, merge_pairErr1RequiresViolation, merge_pairErr28RequiresViolation, merge_pairErr8RequiresViolation, merge_single_nodeErr4RequiresViolation, merge_single_nodeErr0RequiresViolation, merge_single_nodeErr9RequiresViolation, merge_single_nodeErr7RequiresViolation, merge_single_nodeErr11RequiresViolation, merge_single_nodeErr2RequiresViolation, merge_single_nodeErr1RequiresViolation, merge_single_nodeErr13RequiresViolation, merge_single_nodeErr6RequiresViolation, merge_single_nodeErr5RequiresViolation, merge_single_nodeErr10RequiresViolation, merge_single_nodeErr3RequiresViolation, merge_single_nodeErr12RequiresViolation, merge_single_nodeErr8RequiresViolation, seq_sort_coreErr13RequiresViolation, seq_sort_coreErr7RequiresViolation, seq_sort_coreErr6RequiresViolation, seq_sort_coreErr10RequiresViolation, seq_sort_coreErr1RequiresViolation, seq_sort_coreErr3RequiresViolation, seq_sort_coreErr8RequiresViolation, seq_sort_coreErr12RequiresViolation, seq_sort_coreErr11RequiresViolation, seq_sort_coreErr0RequiresViolation, seq_sort_coreErr4RequiresViolation, seq_sort_coreErr5RequiresViolation, seq_sort_coreErr2RequiresViolation, seq_sort_coreErr9RequiresViolation, inspect_beforeErr15RequiresViolation, inspect_beforeErr7RequiresViolation, inspect_beforeErr11RequiresViolation, inspect_beforeErr3RequiresViolation, inspect_beforeErr2RequiresViolation, inspect_beforeErr10RequiresViolation, inspect_beforeErr16RequiresViolation, inspect_beforeErr1RequiresViolation, inspect_beforeErr6RequiresViolation, inspect_beforeErr18RequiresViolation, inspect_beforeErr13RequiresViolation, inspect_beforeErr0RequiresViolation, inspect_beforeErr9RequiresViolation, inspect_beforeErr4RequiresViolation, inspect_beforeErr17RequiresViolation, inspect_beforeErr8RequiresViolation, inspect_beforeErr12RequiresViolation, inspect_beforeErr14RequiresViolation, inspect_beforeErr5RequiresViolation, inspect_beforeErr19RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, inspect_afterErr8RequiresViolation, inspect_afterErr10RequiresViolation, inspect_afterErr1RequiresViolation, inspect_afterErr0RequiresViolation, inspect_afterErr6RequiresViolation, inspect_afterErr7RequiresViolation, inspect_afterErr11RequiresViolation, inspect_afterErr5RequiresViolation, inspect_afterErr2RequiresViolation, inspect_afterErr4RequiresViolation, inspect_afterErr3RequiresViolation, inspect_afterErr9RequiresViolation]=== [2018-02-04 04:53:06,257 INFO L82 PathProgramCache]: Analyzing trace with hash 963226954, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) [2018-02-04 04:53:06,261 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:53:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:53:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:53:06,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:06,300 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:53:06,300 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:53:06,300 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:53:06,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:06,301 INFO L182 omatonBuilderFactory]: Interpolants [4291#(= 1 (select |#valid| |main_#t~malloc45.base|)), 4292#(= 1 (select |#valid| main_~item~0.base)), 4293#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 4286#true, 4287#false] [2018-02-04 04:53:06,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:06,301 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:53:06,301 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:53:06,301 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:53:06,302 INFO L87 Difference]: Start difference. First operand 294 states and 307 transitions. Second operand 5 states. [2018-02-04 04:53:06,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:53:06,664 INFO L93 Difference]: Finished difference Result 339 states and 358 transitions. [2018-02-04 04:53:06,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:53:06,664 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-02-04 04:53:06,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:53:06,666 INFO L225 Difference]: With dead ends: 339 [2018-02-04 04:53:06,666 INFO L226 Difference]: Without dead ends: 339 [2018-02-04 04:53:06,666 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:53:06,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2018-02-04 04:53:06,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 292. [2018-02-04 04:53:06,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2018-02-04 04:53:06,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 305 transitions. [2018-02-04 04:53:06,672 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 305 transitions. Word has length 20 [2018-02-04 04:53:06,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:53:06,673 INFO L432 AbstractCegarLoop]: Abstraction has 292 states and 305 transitions. [2018-02-04 04:53:06,673 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:53:06,673 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 305 transitions. [2018-02-04 04:53:06,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-04 04:53:06,673 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:53:06,673 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:53:06,674 INFO L371 AbstractCegarLoop]: === Iteration 8 === [merge_pairErr19RequiresViolation, merge_pairErr24RequiresViolation, merge_pairErr4RequiresViolation, merge_pairErr11RequiresViolation, merge_pairErr16RequiresViolation, merge_pairErr7RequiresViolation, merge_pairErr9RequiresViolation, merge_pairErr2RequiresViolation, merge_pairErr14RequiresViolation, merge_pairErr29RequiresViolation, merge_pairErr17RequiresViolation, merge_pairErr6RequiresViolation, merge_pairErr27RequiresViolation, merge_pairErr26RequiresViolation, merge_pairErr3RequiresViolation, merge_pairErr13RequiresViolation, merge_pairErr23RequiresViolation, merge_pairErr15RequiresViolation, merge_pairErr0RequiresViolation, merge_pairErr10RequiresViolation, merge_pairErr25RequiresViolation, merge_pairErr20RequiresViolation, merge_pairErr22RequiresViolation, merge_pairErr12RequiresViolation, merge_pairErr5RequiresViolation, merge_pairErr18RequiresViolation, merge_pairErr21RequiresViolation, merge_pairErr1RequiresViolation, merge_pairErr28RequiresViolation, merge_pairErr8RequiresViolation, merge_single_nodeErr4RequiresViolation, merge_single_nodeErr0RequiresViolation, merge_single_nodeErr9RequiresViolation, merge_single_nodeErr7RequiresViolation, merge_single_nodeErr11RequiresViolation, merge_single_nodeErr2RequiresViolation, merge_single_nodeErr1RequiresViolation, merge_single_nodeErr13RequiresViolation, merge_single_nodeErr6RequiresViolation, merge_single_nodeErr5RequiresViolation, merge_single_nodeErr10RequiresViolation, merge_single_nodeErr3RequiresViolation, merge_single_nodeErr12RequiresViolation, merge_single_nodeErr8RequiresViolation, seq_sort_coreErr13RequiresViolation, seq_sort_coreErr7RequiresViolation, seq_sort_coreErr6RequiresViolation, seq_sort_coreErr10RequiresViolation, seq_sort_coreErr1RequiresViolation, seq_sort_coreErr3RequiresViolation, seq_sort_coreErr8RequiresViolation, seq_sort_coreErr12RequiresViolation, seq_sort_coreErr11RequiresViolation, seq_sort_coreErr0RequiresViolation, seq_sort_coreErr4RequiresViolation, seq_sort_coreErr5RequiresViolation, seq_sort_coreErr2RequiresViolation, seq_sort_coreErr9RequiresViolation, inspect_beforeErr15RequiresViolation, inspect_beforeErr7RequiresViolation, inspect_beforeErr11RequiresViolation, inspect_beforeErr3RequiresViolation, inspect_beforeErr2RequiresViolation, inspect_beforeErr10RequiresViolation, inspect_beforeErr16RequiresViolation, inspect_beforeErr1RequiresViolation, inspect_beforeErr6RequiresViolation, inspect_beforeErr18RequiresViolation, inspect_beforeErr13RequiresViolation, inspect_beforeErr0RequiresViolation, inspect_beforeErr9RequiresViolation, inspect_beforeErr4RequiresViolation, inspect_beforeErr17RequiresViolation, inspect_beforeErr8RequiresViolation, inspect_beforeErr12RequiresViolation, inspect_beforeErr14RequiresViolation, inspect_beforeErr5RequiresViolation, inspect_beforeErr19RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, inspect_afterErr8RequiresViolation, inspect_afterErr10RequiresViolation, inspect_afterErr1RequiresViolation, inspect_afterErr0RequiresViolation, inspect_afterErr6RequiresViolation, inspect_afterErr7RequiresViolation, inspect_afterErr11RequiresViolation, inspect_afterErr5RequiresViolation, inspect_afterErr2RequiresViolation, inspect_afterErr4RequiresViolation, inspect_afterErr3RequiresViolation, inspect_afterErr9RequiresViolation]=== [2018-02-04 04:53:06,674 INFO L82 PathProgramCache]: Analyzing trace with hash -204735206, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:53:06,677 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:53:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:53:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:53:06,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:06,722 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:53:06,722 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:53:06,723 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:53:06,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:06,723 INFO L182 omatonBuilderFactory]: Interpolants [4928#true, 4929#false, 4933#(and (= 0 |main_#t~malloc45.offset|) (= 8 (select |#length| |main_#t~malloc45.base|))), 4934#(and (<= 0 (+ main_~item~0.offset 4)) (<= (+ main_~item~0.offset 8) (select |#length| main_~item~0.base))), 4935#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:53:06,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:06,723 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:53:06,723 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:53:06,724 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:53:06,724 INFO L87 Difference]: Start difference. First operand 292 states and 305 transitions. Second operand 5 states. [2018-02-04 04:53:07,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:53:07,031 INFO L93 Difference]: Finished difference Result 347 states and 367 transitions. [2018-02-04 04:53:07,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:53:07,031 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-02-04 04:53:07,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:53:07,032 INFO L225 Difference]: With dead ends: 347 [2018-02-04 04:53:07,032 INFO L226 Difference]: Without dead ends: 347 [2018-02-04 04:53:07,033 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:53:07,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2018-02-04 04:53:07,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 291. [2018-02-04 04:53:07,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2018-02-04 04:53:07,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 304 transitions. [2018-02-04 04:53:07,038 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 304 transitions. Word has length 21 [2018-02-04 04:53:07,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:53:07,039 INFO L432 AbstractCegarLoop]: Abstraction has 291 states and 304 transitions. [2018-02-04 04:53:07,039 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:53:07,039 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 304 transitions. [2018-02-04 04:53:07,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-02-04 04:53:07,039 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:53:07,039 INFO L351 BasicCegarLoop]: trace histogram [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] [2018-02-04 04:53:07,040 INFO L371 AbstractCegarLoop]: === Iteration 9 === [merge_pairErr19RequiresViolation, merge_pairErr24RequiresViolation, merge_pairErr4RequiresViolation, merge_pairErr11RequiresViolation, merge_pairErr16RequiresViolation, merge_pairErr7RequiresViolation, merge_pairErr9RequiresViolation, merge_pairErr2RequiresViolation, merge_pairErr14RequiresViolation, merge_pairErr29RequiresViolation, merge_pairErr17RequiresViolation, merge_pairErr6RequiresViolation, merge_pairErr27RequiresViolation, merge_pairErr26RequiresViolation, merge_pairErr3RequiresViolation, merge_pairErr13RequiresViolation, merge_pairErr23RequiresViolation, merge_pairErr15RequiresViolation, merge_pairErr0RequiresViolation, merge_pairErr10RequiresViolation, merge_pairErr25RequiresViolation, merge_pairErr20RequiresViolation, merge_pairErr22RequiresViolation, merge_pairErr12RequiresViolation, merge_pairErr5RequiresViolation, merge_pairErr18RequiresViolation, merge_pairErr21RequiresViolation, merge_pairErr1RequiresViolation, merge_pairErr28RequiresViolation, merge_pairErr8RequiresViolation, merge_single_nodeErr4RequiresViolation, merge_single_nodeErr0RequiresViolation, merge_single_nodeErr9RequiresViolation, merge_single_nodeErr7RequiresViolation, merge_single_nodeErr11RequiresViolation, merge_single_nodeErr2RequiresViolation, merge_single_nodeErr1RequiresViolation, merge_single_nodeErr13RequiresViolation, merge_single_nodeErr6RequiresViolation, merge_single_nodeErr5RequiresViolation, merge_single_nodeErr10RequiresViolation, merge_single_nodeErr3RequiresViolation, merge_single_nodeErr12RequiresViolation, merge_single_nodeErr8RequiresViolation, seq_sort_coreErr13RequiresViolation, seq_sort_coreErr7RequiresViolation, seq_sort_coreErr6RequiresViolation, seq_sort_coreErr10RequiresViolation, seq_sort_coreErr1RequiresViolation, seq_sort_coreErr3RequiresViolation, seq_sort_coreErr8RequiresViolation, seq_sort_coreErr12RequiresViolation, seq_sort_coreErr11RequiresViolation, seq_sort_coreErr0RequiresViolation, seq_sort_coreErr4RequiresViolation, seq_sort_coreErr5RequiresViolation, seq_sort_coreErr2RequiresViolation, seq_sort_coreErr9RequiresViolation, inspect_beforeErr15RequiresViolation, inspect_beforeErr7RequiresViolation, inspect_beforeErr11RequiresViolation, inspect_beforeErr3RequiresViolation, inspect_beforeErr2RequiresViolation, inspect_beforeErr10RequiresViolation, inspect_beforeErr16RequiresViolation, inspect_beforeErr1RequiresViolation, inspect_beforeErr6RequiresViolation, inspect_beforeErr18RequiresViolation, inspect_beforeErr13RequiresViolation, inspect_beforeErr0RequiresViolation, inspect_beforeErr9RequiresViolation, inspect_beforeErr4RequiresViolation, inspect_beforeErr17RequiresViolation, inspect_beforeErr8RequiresViolation, inspect_beforeErr12RequiresViolation, inspect_beforeErr14RequiresViolation, inspect_beforeErr5RequiresViolation, inspect_beforeErr19RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, inspect_afterErr8RequiresViolation, inspect_afterErr10RequiresViolation, inspect_afterErr1RequiresViolation, inspect_afterErr0RequiresViolation, inspect_afterErr6RequiresViolation, inspect_afterErr7RequiresViolation, inspect_afterErr11RequiresViolation, inspect_afterErr5RequiresViolation, inspect_afterErr2RequiresViolation, inspect_afterErr4RequiresViolation, inspect_afterErr3RequiresViolation, inspect_afterErr9RequiresViolation]=== [2018-02-04 04:53:07,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1725402921, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:53:07,044 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:53:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:53:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:53:07,075 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:07,091 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:53:07,091 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 04:53:07,091 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:53:07,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:07,092 INFO L182 omatonBuilderFactory]: Interpolants [5584#(not (= 0 main_~data~0.base)), 5585#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 5577#true, 5578#false, 5582#(not (= 0 |main_#t~malloc45.base|)), 5583#(not (= 0 main_~item~0.base))] [2018-02-04 04:53:07,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:53:07,092 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:53:07,092 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:53:07,092 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:53:07,092 INFO L87 Difference]: Start difference. First operand 291 states and 304 transitions. Second operand 6 states. [2018-02-04 04:53:07,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:53:07,548 INFO L93 Difference]: Finished difference Result 352 states and 372 transitions. [2018-02-04 04:53:07,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:53:07,548 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2018-02-04 04:53:07,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:53:07,550 INFO L225 Difference]: With dead ends: 352 [2018-02-04 04:53:07,550 INFO L226 Difference]: Without dead ends: 352 [2018-02-04 04:53:07,550 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-02-04 04:53:07,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2018-02-04 04:53:07,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 291. [2018-02-04 04:53:07,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2018-02-04 04:53:07,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 303 transitions. [2018-02-04 04:53:07,556 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 303 transitions. Word has length 27 [2018-02-04 04:53:07,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:53:07,557 INFO L432 AbstractCegarLoop]: Abstraction has 291 states and 303 transitions. [2018-02-04 04:53:07,557 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:53:07,557 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 303 transitions. [2018-02-04 04:53:07,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-02-04 04:53:07,557 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:53:07,557 INFO L351 BasicCegarLoop]: trace histogram [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] [2018-02-04 04:53:07,558 INFO L371 AbstractCegarLoop]: === Iteration 10 === [merge_pairErr19RequiresViolation, merge_pairErr24RequiresViolation, merge_pairErr4RequiresViolation, merge_pairErr11RequiresViolation, merge_pairErr16RequiresViolation, merge_pairErr7RequiresViolation, merge_pairErr9RequiresViolation, merge_pairErr2RequiresViolation, merge_pairErr14RequiresViolation, merge_pairErr29RequiresViolation, merge_pairErr17RequiresViolation, merge_pairErr6RequiresViolation, merge_pairErr27RequiresViolation, merge_pairErr26RequiresViolation, merge_pairErr3RequiresViolation, merge_pairErr13RequiresViolation, merge_pairErr23RequiresViolation, merge_pairErr15RequiresViolation, merge_pairErr0RequiresViolation, merge_pairErr10RequiresViolation, merge_pairErr25RequiresViolation, merge_pairErr20RequiresViolation, merge_pairErr22RequiresViolation, merge_pairErr12RequiresViolation, merge_pairErr5RequiresViolation, merge_pairErr18RequiresViolation, merge_pairErr21RequiresViolation, merge_pairErr1RequiresViolation, merge_pairErr28RequiresViolation, merge_pairErr8RequiresViolation, merge_single_nodeErr4RequiresViolation, merge_single_nodeErr0RequiresViolation, merge_single_nodeErr9RequiresViolation, merge_single_nodeErr7RequiresViolation, merge_single_nodeErr11RequiresViolation, merge_single_nodeErr2RequiresViolation, merge_single_nodeErr1RequiresViolation, merge_single_nodeErr13RequiresViolation, merge_single_nodeErr6RequiresViolation, merge_single_nodeErr5RequiresViolation, merge_single_nodeErr10RequiresViolation, merge_single_nodeErr3RequiresViolation, merge_single_nodeErr12RequiresViolation, merge_single_nodeErr8RequiresViolation, seq_sort_coreErr13RequiresViolation, seq_sort_coreErr7RequiresViolation, seq_sort_coreErr6RequiresViolation, seq_sort_coreErr10RequiresViolation, seq_sort_coreErr1RequiresViolation, seq_sort_coreErr3RequiresViolation, seq_sort_coreErr8RequiresViolation, seq_sort_coreErr12RequiresViolation, seq_sort_coreErr11RequiresViolation, seq_sort_coreErr0RequiresViolation, seq_sort_coreErr4RequiresViolation, seq_sort_coreErr5RequiresViolation, seq_sort_coreErr2RequiresViolation, seq_sort_coreErr9RequiresViolation, inspect_beforeErr15RequiresViolation, inspect_beforeErr7RequiresViolation, inspect_beforeErr11RequiresViolation, inspect_beforeErr3RequiresViolation, inspect_beforeErr2RequiresViolation, inspect_beforeErr10RequiresViolation, inspect_beforeErr16RequiresViolation, inspect_beforeErr1RequiresViolation, inspect_beforeErr6RequiresViolation, inspect_beforeErr18RequiresViolation, inspect_beforeErr13RequiresViolation, inspect_beforeErr0RequiresViolation, inspect_beforeErr9RequiresViolation, inspect_beforeErr4RequiresViolation, inspect_beforeErr17RequiresViolation, inspect_beforeErr8RequiresViolation, inspect_beforeErr12RequiresViolation, inspect_beforeErr14RequiresViolation, inspect_beforeErr5RequiresViolation, inspect_beforeErr19RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr18EnsuresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr14RequiresViolation, inspect_afterErr8RequiresViolation, inspect_afterErr10RequiresViolation, inspect_afterErr1RequiresViolation, inspect_afterErr0RequiresViolation, inspect_afterErr6RequiresViolation, inspect_afterErr7RequiresViolation, inspect_afterErr11RequiresViolation, inspect_afterErr5RequiresViolation, inspect_afterErr2RequiresViolation, inspect_afterErr4RequiresViolation, inspect_afterErr3RequiresViolation, inspect_afterErr9RequiresViolation]=== [2018-02-04 04:53:07,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1961365059, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:53:07,568 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:53:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:53:07,592 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 127 column 478: theory not supported by interpolation or bad proof at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1420) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseInterpolants(Executor.java:255) at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.readInterpolants(ScriptorWithGetInterpolants.java:136) at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.getInterpolants(ScriptorWithGetInterpolants.java:64) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.getInterpolants(DiffWrapperScript.java:260) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:186) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:196) 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.FixedTraceAbstractionRefinementStrategy.getTraceCheck(FixedTraceAbstractionRefinementStrategy.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:397) 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:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-02-04 04:53:07,595 INFO L168 Benchmark]: Toolchain (without parser) took 5920.33 ms. Allocated memory was 412.1 MB in the beginning and 738.7 MB in the end (delta: 326.6 MB). Free memory was 369.0 MB in the beginning and 687.5 MB in the end (delta: -318.5 MB). Peak memory consumption was 8.1 MB. Max. memory is 5.3 GB. [2018-02-04 04:53:07,596 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 412.1 MB. Free memory is still 375.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:53:07,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 206.42 ms. Allocated memory is still 412.1 MB. Free memory was 369.0 MB in the beginning and 357.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. [2018-02-04 04:53:07,596 INFO L168 Benchmark]: Boogie Preprocessor took 40.42 ms. Allocated memory is still 412.1 MB. Free memory was 357.1 MB in the beginning and 354.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:53:07,597 INFO L168 Benchmark]: RCFGBuilder took 621.51 ms. Allocated memory is still 412.1 MB. Free memory was 354.4 MB in the beginning and 282.8 MB in the end (delta: 71.6 MB). Peak memory consumption was 71.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:53:07,597 INFO L168 Benchmark]: TraceAbstraction took 5048.88 ms. Allocated memory was 412.1 MB in the beginning and 738.7 MB in the end (delta: 326.6 MB). Free memory was 282.8 MB in the beginning and 687.5 MB in the end (delta: -404.7 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:53:07,599 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 412.1 MB. Free memory is still 375.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 206.42 ms. Allocated memory is still 412.1 MB. Free memory was 369.0 MB in the beginning and 357.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 40.42 ms. Allocated memory is still 412.1 MB. Free memory was 357.1 MB in the beginning and 354.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 621.51 ms. Allocated memory is still 412.1 MB. Free memory was 354.4 MB in the beginning and 282.8 MB in the end (delta: 71.6 MB). Peak memory consumption was 71.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 5048.88 ms. Allocated memory was 412.1 MB in the beginning and 738.7 MB in the end (delta: 326.6 MB). Free memory was 282.8 MB in the beginning and 687.5 MB in the end (delta: -404.7 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 127 column 478: theory not supported by interpolation or bad proof de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 127 column 478: theory not supported by interpolation or bad proof: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1420) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/merge_sort_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-53-07-607.csv Received shutdown request...