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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/array-memsafety/openbsd_cmemrchr-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cceb4a [2018-01-30 01:09:35,543 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-30 01:09:35,545 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-30 01:09:35,563 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-30 01:09:35,563 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-30 01:09:35,565 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-30 01:09:35,566 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-30 01:09:35,568 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-30 01:09:35,570 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-30 01:09:35,571 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-30 01:09:35,572 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-30 01:09:35,572 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-30 01:09:35,573 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-30 01:09:35,575 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-30 01:09:35,576 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-30 01:09:35,579 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-30 01:09:35,590 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-30 01:09:35,592 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-30 01:09:35,593 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-30 01:09:35,595 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-30 01:09:35,597 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-30 01:09:35,597 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-30 01:09:35,598 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-30 01:09:35,599 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-30 01:09:35,600 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-30 01:09:35,601 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-30 01:09:35,602 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-30 01:09:35,602 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-30 01:09:35,603 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-30 01:09:35,603 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-30 01:09:35,604 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-30 01:09:35,604 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-01-30 01:09:35,627 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-30 01:09:35,628 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-30 01:09:35,629 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-30 01:09:35,629 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-30 01:09:35,630 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-30 01:09:35,630 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-30 01:09:35,630 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-30 01:09:35,631 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-30 01:09:35,631 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-30 01:09:35,631 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-30 01:09:35,631 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-30 01:09:35,632 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-30 01:09:35,632 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-30 01:09:35,633 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-30 01:09:35,633 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-30 01:09:35,633 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-30 01:09:35,633 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-30 01:09:35,633 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-30 01:09:35,634 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-30 01:09:35,634 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-30 01:09:35,634 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-30 01:09:35,634 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-30 01:09:35,634 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-30 01:09:35,635 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-30 01:09:35,635 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-30 01:09:35,637 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-30 01:09:35,637 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-30 01:09:35,637 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-30 01:09:35,637 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-30 01:09:35,637 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-30 01:09:35,638 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-30 01:09:35,638 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-30 01:09:35,639 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-30 01:09:35,639 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-30 01:09:35,719 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-30 01:09:35,743 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-30 01:09:35,748 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-30 01:09:35,750 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-30 01:09:35,751 INFO L276 PluginConnector]: CDTParser initialized [2018-01-30 01:09:35,752 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cmemrchr-alloca_true-valid-memsafety_true-termination.i [2018-01-30 01:09:36,067 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-30 01:09:36,074 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-01-30 01:09:36,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-30 01:09:36,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-30 01:09:36,081 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-30 01:09:36,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 01:09:36" (1/1) ... [2018-01-30 01:09:36,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@518bd560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:09:36, skipping insertion in model container [2018-01-30 01:09:36,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 01:09:36" (1/1) ... [2018-01-30 01:09:36,108 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 01:09:36,202 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 01:09:36,374 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 01:09:36,415 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 01:09:36,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:09:36 WrapperNode [2018-01-30 01:09:36,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-30 01:09:36,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-30 01:09:36,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-30 01:09:36,426 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-30 01:09:36,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:09:36" (1/1) ... [2018-01-30 01:09:36,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:09:36" (1/1) ... [2018-01-30 01:09:36,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:09:36" (1/1) ... [2018-01-30 01:09:36,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:09:36" (1/1) ... [2018-01-30 01:09:36,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:09:36" (1/1) ... [2018-01-30 01:09:36,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:09:36" (1/1) ... [2018-01-30 01:09:36,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:09:36" (1/1) ... [2018-01-30 01:09:36,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-30 01:09:36,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-30 01:09:36,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-30 01:09:36,467 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-30 01:09:36,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:09:36" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-30 01:09:36,528 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-30 01:09:36,528 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-30 01:09:36,529 INFO L136 BoogieDeclarations]: Found implementation of procedure cmemrchr [2018-01-30 01:09:36,529 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-30 01:09:36,529 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-30 01:09:36,529 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-30 01:09:36,529 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-30 01:09:36,529 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-30 01:09:36,529 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-30 01:09:36,530 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-30 01:09:36,530 INFO L128 BoogieDeclarations]: Found specification of procedure cmemrchr [2018-01-30 01:09:36,530 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-30 01:09:36,530 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-30 01:09:36,530 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-30 01:09:36,993 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-30 01:09:37,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 01:09:37 BoogieIcfgContainer [2018-01-30 01:09:37,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-30 01:09:37,026 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-01-30 01:09:37,026 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-01-30 01:09:37,027 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-01-30 01:09:37,030 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 01:09:37" (1/1) ... [2018-01-30 01:09:37,038 INFO L103 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-01-30 01:09:37,039 INFO L104 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-01-30 01:09:37,039 INFO L150 apSepIcfgTransformer]: starting freeze-var-style preprocessing [2018-01-30 01:09:37,082 INFO L162 apSepIcfgTransformer]: finished StoreIndexFreezer, created 3 freeze vars and freeze var literals (each corresponds to one heap write) [2018-01-30 01:09:37,110 INFO L221 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-01-30 01:09:37,218 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-30 01:09:42,407 INFO L311 AbstractInterpreter]: Visited 65 different actions 297 times. Merged at 31 different actions 122 times. Never widened. Found 18 fixpoints after 2 different actions. Largest state had 35 variables. [2018-01-30 01:09:42,446 INFO L229 apSepIcfgTransformer]: finished equality analysis [2018-01-30 01:09:42,478 INFO L244 HeapSepPreAnalysis]: Number of read from array group [#memory_int] : 1 [2018-01-30 01:09:42,479 INFO L241 apSepIcfgTransformer]: Finished pre analysis before partitioning [2018-01-30 01:09:42,479 INFO L242 apSepIcfgTransformer]: array groups: Set: [#memory_int] [2018-01-30 01:09:42,479 INFO L244 apSepIcfgTransformer]: select infos: Set: ((select (select |v_#memory_int_1| |v_cmemrchr_#t~pre1.base_2|) |v_cmemrchr_#t~pre1.offset_2|), at (SUMMARY for call #t~mem2 := read~int(#t~pre1.base, #t~pre1.offset, 1); srcloc: L547'')) [2018-01-30 01:09:42,485 INFO L547 PartitionManager]: partitioning result: [2018-01-30 01:09:42,485 INFO L552 PartitionManager]: location blocks for array group [#memory_int] [2018-01-30 01:09:42,491 INFO L561 PartitionManager]: at dimension 0 [2018-01-30 01:09:42,492 INFO L562 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-01-30 01:09:42,492 INFO L563 PartitionManager]: # location blocks :1 [2018-01-30 01:09:42,492 INFO L561 PartitionManager]: at dimension 1 [2018-01-30 01:09:42,492 INFO L562 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-01-30 01:09:42,492 INFO L563 PartitionManager]: # location blocks :1 [2018-01-30 01:09:42,493 INFO L86 ransitionTransformer]: executing heap partitioning transformation [2018-01-30 01:09:42,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 30.01 01:09:42 BasicIcfg [2018-01-30 01:09:42,539 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-01-30 01:09:42,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-30 01:09:42,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-30 01:09:42,553 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-30 01:09:42,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 01:09:36" (1/4) ... [2018-01-30 01:09:42,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9162b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 01:09:42, skipping insertion in model container [2018-01-30 01:09:42,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:09:36" (2/4) ... [2018-01-30 01:09:42,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9162b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 01:09:42, skipping insertion in model container [2018-01-30 01:09:42,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 01:09:37" (3/4) ... [2018-01-30 01:09:42,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9162b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 01:09:42, skipping insertion in model container [2018-01-30 01:09:42,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 30.01 01:09:42" (4/4) ... [2018-01-30 01:09:42,560 INFO L107 eAbstractionObserver]: Analyzing ICFG HeapSeparatedIcfg [2018-01-30 01:09:42,588 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-30 01:09:42,769 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-30 01:09:42,894 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-30 01:09:42,894 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-30 01:09:42,894 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-30 01:09:42,894 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-30 01:09:42,895 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-30 01:09:42,895 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-30 01:09:42,895 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-30 01:09:42,895 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-30 01:09:42,896 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-30 01:09:42,937 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2018-01-30 01:09:42,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-30 01:09:42,949 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:09:42,956 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:09:42,956 INFO L371 AbstractCegarLoop]: === Iteration 1 === [cmemrchrErr0RequiresViolation, cmemrchrErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-30 01:09:42,962 INFO L82 PathProgramCache]: Analyzing trace with hash 46770442, now seen corresponding path program 1 times [2018-01-30 01:09:42,973 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:09:42,974 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:09:43,070 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:09:43,071 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:09:43,071 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:09:43,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:09:43,155 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:09:43,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:09:43,438 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:09:43,439 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-30 01:09:43,444 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-30 01:09:43,457 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-30 01:09:43,458 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-30 01:09:43,461 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 4 states. [2018-01-30 01:09:44,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:09:44,117 INFO L93 Difference]: Finished difference Result 68 states and 76 transitions. [2018-01-30 01:09:44,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-30 01:09:44,128 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-01-30 01:09:44,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:09:44,160 INFO L225 Difference]: With dead ends: 68 [2018-01-30 01:09:44,160 INFO L226 Difference]: Without dead ends: 41 [2018-01-30 01:09:44,174 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-30 01:09:44,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-01-30 01:09:44,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-01-30 01:09:44,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-01-30 01:09:44,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2018-01-30 01:09:44,269 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 21 [2018-01-30 01:09:44,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:09:44,270 INFO L432 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2018-01-30 01:09:44,270 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-30 01:09:44,271 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2018-01-30 01:09:44,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-30 01:09:44,272 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:09:44,275 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:09:44,275 INFO L371 AbstractCegarLoop]: === Iteration 2 === [cmemrchrErr0RequiresViolation, cmemrchrErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-30 01:09:44,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1376807315, now seen corresponding path program 1 times [2018-01-30 01:09:44,276 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:09:44,276 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:09:44,277 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:09:44,277 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:09:44,277 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:09:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:09:44,353 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:09:44,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:09:44,536 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:09:44,536 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-30 01:09:44,537 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-30 01:09:44,537 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-30 01:09:44,538 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-01-30 01:09:44,538 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 8 states. [2018-01-30 01:09:44,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:09:44,819 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2018-01-30 01:09:44,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-30 01:09:44,820 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2018-01-30 01:09:44,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:09:44,822 INFO L225 Difference]: With dead ends: 41 [2018-01-30 01:09:44,822 INFO L226 Difference]: Without dead ends: 40 [2018-01-30 01:09:44,823 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2018-01-30 01:09:44,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-01-30 01:09:44,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-01-30 01:09:44,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-01-30 01:09:44,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2018-01-30 01:09:44,836 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 26 [2018-01-30 01:09:44,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:09:44,836 INFO L432 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2018-01-30 01:09:44,837 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-30 01:09:44,837 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2018-01-30 01:09:44,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-30 01:09:44,838 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:09:44,838 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:09:44,838 INFO L371 AbstractCegarLoop]: === Iteration 3 === [cmemrchrErr0RequiresViolation, cmemrchrErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-30 01:09:44,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1376807317, now seen corresponding path program 1 times [2018-01-30 01:09:44,838 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:09:44,839 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:09:44,843 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:09:44,843 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:09:44,843 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:09:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:09:44,879 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:09:45,397 WARN L143 SmtUtils]: Spent 107ms on a formula simplification that was a NOOP. DAG size: 13 [2018-01-30 01:09:45,737 WARN L146 SmtUtils]: Spent 148ms on a formula simplification. DAG size of input: 21 DAG size of output 16 [2018-01-30 01:09:46,031 WARN L146 SmtUtils]: Spent 232ms on a formula simplification. DAG size of input: 26 DAG size of output 16 [2018-01-30 01:09:46,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:09:46,294 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:09:46,294 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-01-30 01:09:46,295 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-01-30 01:09:46,295 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-01-30 01:09:46,300 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-01-30 01:09:46,300 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 13 states. [2018-01-30 01:09:47,214 WARN L143 SmtUtils]: Spent 214ms on a formula simplification that was a NOOP. DAG size: 31 [2018-01-30 01:09:47,494 WARN L143 SmtUtils]: Spent 169ms on a formula simplification that was a NOOP. DAG size: 37 [2018-01-30 01:09:47,714 WARN L143 SmtUtils]: Spent 133ms on a formula simplification that was a NOOP. DAG size: 32 [2018-01-30 01:09:48,108 WARN L143 SmtUtils]: Spent 171ms on a formula simplification that was a NOOP. DAG size: 25 [2018-01-30 01:09:48,338 WARN L143 SmtUtils]: Spent 115ms on a formula simplification that was a NOOP. DAG size: 31 [2018-01-30 01:09:48,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:09:48,509 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2018-01-30 01:09:48,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-01-30 01:09:48,510 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26 [2018-01-30 01:09:48,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:09:48,511 INFO L225 Difference]: With dead ends: 62 [2018-01-30 01:09:48,511 INFO L226 Difference]: Without dead ends: 61 [2018-01-30 01:09:48,512 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2018-01-30 01:09:48,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-01-30 01:09:48,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 44. [2018-01-30 01:09:48,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-01-30 01:09:48,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2018-01-30 01:09:48,520 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 26 [2018-01-30 01:09:48,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:09:48,521 INFO L432 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2018-01-30 01:09:48,521 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-01-30 01:09:48,521 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2018-01-30 01:09:48,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-01-30 01:09:48,522 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:09:48,522 INFO L350 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:09:48,522 INFO L371 AbstractCegarLoop]: === Iteration 4 === [cmemrchrErr0RequiresViolation, cmemrchrErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-30 01:09:48,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1795636590, now seen corresponding path program 1 times [2018-01-30 01:09:48,523 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:09:48,523 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:09:48,523 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:09:48,524 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:09:48,524 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:09:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:09:48,545 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:09:49,082 WARN L146 SmtUtils]: Spent 118ms on a formula simplification. DAG size of input: 18 DAG size of output 15 [2018-01-30 01:09:49,429 WARN L146 SmtUtils]: Spent 187ms on a formula simplification. DAG size of input: 31 DAG size of output 20 [2018-01-30 01:09:49,561 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:09:49,562 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:09:49,562 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:09:49,568 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:09:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:09:49,601 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:09:49,676 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-01-30 01:09:49,677 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:09:49,683 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:09:49,683 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-01-30 01:09:50,376 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:09:50,397 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:09:50,397 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16] total 29 [2018-01-30 01:09:50,397 INFO L409 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-01-30 01:09:50,398 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-01-30 01:09:50,398 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=792, Unknown=0, NotChecked=0, Total=870 [2018-01-30 01:09:50,398 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand 30 states. [2018-01-30 01:09:51,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:09:51,657 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2018-01-30 01:09:51,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-01-30 01:09:51,657 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 37 [2018-01-30 01:09:51,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:09:51,658 INFO L225 Difference]: With dead ends: 58 [2018-01-30 01:09:51,658 INFO L226 Difference]: Without dead ends: 57 [2018-01-30 01:09:51,659 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=265, Invalid=1805, Unknown=0, NotChecked=0, Total=2070 [2018-01-30 01:09:51,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-01-30 01:09:51,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2018-01-30 01:09:51,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-01-30 01:09:51,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2018-01-30 01:09:51,667 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 37 [2018-01-30 01:09:51,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:09:51,667 INFO L432 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2018-01-30 01:09:51,667 INFO L433 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-01-30 01:09:51,667 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2018-01-30 01:09:51,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-01-30 01:09:51,669 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:09:51,669 INFO L350 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:09:51,669 INFO L371 AbstractCegarLoop]: === Iteration 5 === [cmemrchrErr0RequiresViolation, cmemrchrErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-30 01:09:51,669 INFO L82 PathProgramCache]: Analyzing trace with hash 758364149, now seen corresponding path program 2 times [2018-01-30 01:09:51,669 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:09:51,670 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:09:51,671 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:09:51,671 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:09:51,671 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:09:51,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:09:51,696 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:09:52,239 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:09:52,239 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:09:52,239 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:09:52,252 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-30 01:09:52,266 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:09:52,272 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:09:52,275 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:09:52,279 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:09:52,317 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-01-30 01:09:52,317 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:09:52,321 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:09:52,321 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-01-30 01:09:53,222 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:09:53,244 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:09:53,244 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 20] total 35 [2018-01-30 01:09:53,244 INFO L409 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-01-30 01:09:53,244 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-01-30 01:09:53,245 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1165, Unknown=0, NotChecked=0, Total=1260 [2018-01-30 01:09:53,245 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 36 states. [2018-01-30 01:09:55,463 WARN L146 SmtUtils]: Spent 265ms on a formula simplification. DAG size of input: 62 DAG size of output 45 [2018-01-30 01:09:56,064 WARN L146 SmtUtils]: Spent 442ms on a formula simplification. DAG size of input: 59 DAG size of output 42 [2018-01-30 01:09:57,965 WARN L146 SmtUtils]: Spent 1780ms on a formula simplification. DAG size of input: 85 DAG size of output 56 [2018-01-30 01:10:00,351 WARN L146 SmtUtils]: Spent 281ms on a formula simplification. DAG size of input: 63 DAG size of output 53 [2018-01-30 01:10:01,896 WARN L146 SmtUtils]: Spent 221ms on a formula simplification. DAG size of input: 59 DAG size of output 44 [2018-01-30 01:10:03,284 WARN L146 SmtUtils]: Spent 1354ms on a formula simplification. DAG size of input: 52 DAG size of output 38 [2018-01-30 01:10:05,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:10:05,854 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2018-01-30 01:10:05,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-01-30 01:10:05,854 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 48 [2018-01-30 01:10:05,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:10:05,855 INFO L225 Difference]: With dead ends: 68 [2018-01-30 01:10:05,855 INFO L226 Difference]: Without dead ends: 0 [2018-01-30 01:10:05,857 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 29 SyntacticMatches, 3 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=441, Invalid=3591, Unknown=0, NotChecked=0, Total=4032 [2018-01-30 01:10:05,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-30 01:10:05,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-30 01:10:05,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-30 01:10:05,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-30 01:10:05,858 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2018-01-30 01:10:05,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:10:05,859 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-30 01:10:05,859 INFO L433 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-01-30 01:10:05,859 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-30 01:10:05,859 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-30 01:10:05,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-30 01:10:06,664 WARN L146 SmtUtils]: Spent 736ms on a formula simplification. DAG size of input: 104 DAG size of output 70 [2018-01-30 01:10:06,754 INFO L399 ceAbstractionStarter]: For program point L1(lines 1 566) no Hoare annotation was computed. [2018-01-30 01:10:06,755 INFO L399 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 566) no Hoare annotation was computed. [2018-01-30 01:10:06,755 INFO L395 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 566) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-30 01:10:06,755 INFO L399 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 566) no Hoare annotation was computed. [2018-01-30 01:10:06,755 INFO L399 ceAbstractionStarter]: For program point cmemrchrFINAL(lines 540 552) no Hoare annotation was computed. [2018-01-30 01:10:06,755 INFO L399 ceAbstractionStarter]: For program point L540(lines 540 552) no Hoare annotation was computed. [2018-01-30 01:10:06,755 INFO L399 ceAbstractionStarter]: For program point L546(lines 546 549) no Hoare annotation was computed. [2018-01-30 01:10:06,756 INFO L399 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-01-30 01:10:06,756 INFO L399 ceAbstractionStarter]: For program point L544(lines 544 550) no Hoare annotation was computed. [2018-01-30 01:10:06,756 INFO L399 ceAbstractionStarter]: For program point L543(line 543) no Hoare annotation was computed. [2018-01-30 01:10:06,756 INFO L399 ceAbstractionStarter]: For program point L549(line 549) no Hoare annotation was computed. [2018-01-30 01:10:06,758 INFO L399 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-01-30 01:10:06,758 INFO L399 ceAbstractionStarter]: For program point L547(line 547) no Hoare annotation was computed. [2018-01-30 01:10:06,758 INFO L399 ceAbstractionStarter]: For program point L544'(lines 544 550) no Hoare annotation was computed. [2018-01-30 01:10:06,758 INFO L399 ceAbstractionStarter]: For program point L547'''(line 547) no Hoare annotation was computed. [2018-01-30 01:10:06,758 INFO L399 ceAbstractionStarter]: For program point L546'(lines 546 549) no Hoare annotation was computed. [2018-01-30 01:10:06,758 INFO L399 ceAbstractionStarter]: For program point cmemrchrErr0RequiresViolation(lines 1 566) no Hoare annotation was computed. [2018-01-30 01:10:06,758 INFO L399 ceAbstractionStarter]: For program point L547'''''''(line 547) no Hoare annotation was computed. [2018-01-30 01:10:06,758 INFO L399 ceAbstractionStarter]: For program point L540'(lines 540 552) no Hoare annotation was computed. [2018-01-30 01:10:06,759 INFO L399 ceAbstractionStarter]: For program point cmemrchrErr1RequiresViolation(lines 1 566) no Hoare annotation was computed. [2018-01-30 01:10:06,759 INFO L399 ceAbstractionStarter]: For program point L547''''(line 547) no Hoare annotation was computed. [2018-01-30 01:10:06,759 INFO L399 ceAbstractionStarter]: For program point cmemrchrEXIT(lines 540 552) no Hoare annotation was computed. [2018-01-30 01:10:06,759 INFO L402 ceAbstractionStarter]: At program point cmemrchrENTRY(lines 540 552) the Hoare annotation is: true [2018-01-30 01:10:06,759 INFO L395 ceAbstractionStarter]: At program point L546'''(lines 546 549) the Hoare annotation is: (let ((.cse6 (select |#length| cmemrchr_~s.base))) (let ((.cse0 (= 1 (select |#valid| cmemrchr_~s.base))) (.cse2 (select |#length| cmemrchr_~cp~2.base)) (.cse3 (= 1 (select |#valid| cmemrchr_~cp~2.base))) (.cse4 (= |cmemrchr_#in~n| .cse6)) (.cse5 (= cmemrchr_~s.offset 0))) (or (< |cmemrchr_#in~n| 1) (let ((.cse1 (+ cmemrchr_~cp~2.offset 1))) (and .cse0 (<= .cse1 .cse2) .cse3 (= (+ cmemrchr_~n 1) .cse2) (not (= (mod (+ .cse2 4294967295) 4294967296) 0)) (= .cse1 (mod .cse2 4294967296)) .cse4 (<= .cse2 2147483647) (<= 0 cmemrchr_~cp~2.offset) .cse5)) (not (= 0 |cmemrchr_#in~s.offset|)) (and .cse0 (= cmemrchr_~n .cse6) .cse3 .cse4 (= cmemrchr_~cp~2.offset (mod cmemrchr_~n 4294967296)) (= cmemrchr_~n .cse2) .cse5) (and .cse0 (<= (+ cmemrchr_~cp~2.offset 2) .cse2) .cse3 (<= (+ cmemrchr_~cp~2.offset (* 4294967296 (div (+ (- cmemrchr_~cp~2.offset) (+ cmemrchr_~n 4294967295)) 4294967296))) cmemrchr_~n) (<= 1 cmemrchr_~cp~2.offset) .cse4 (<= (+ cmemrchr_~cp~2.offset (* 4294967296 (div cmemrchr_~n 4294967296))) cmemrchr_~n) .cse5) (not (= |cmemrchr_#in~n| (select |#length| |cmemrchr_#in~s.base|))) (not (= 1 (select |#valid| |cmemrchr_#in~s.base|))) (< 2147483647 |cmemrchr_#in~n|)))) [2018-01-30 01:10:06,759 INFO L399 ceAbstractionStarter]: For program point L547'(line 547) no Hoare annotation was computed. [2018-01-30 01:10:06,760 INFO L399 ceAbstractionStarter]: For program point L547''''''(line 547) no Hoare annotation was computed. [2018-01-30 01:10:06,760 INFO L399 ceAbstractionStarter]: For program point L549''(line 549) no Hoare annotation was computed. [2018-01-30 01:10:06,760 INFO L399 ceAbstractionStarter]: For program point L547'''''(line 547) no Hoare annotation was computed. [2018-01-30 01:10:06,760 INFO L399 ceAbstractionStarter]: For program point L549'(line 549) no Hoare annotation was computed. [2018-01-30 01:10:06,760 INFO L399 ceAbstractionStarter]: For program point L547''(line 547) no Hoare annotation was computed. [2018-01-30 01:10:06,760 INFO L402 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 566) the Hoare annotation is: true [2018-01-30 01:10:06,760 INFO L399 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 566) no Hoare annotation was computed. [2018-01-30 01:10:06,760 INFO L402 ceAbstractionStarter]: At program point L1(lines 1 566) the Hoare annotation is: true [2018-01-30 01:10:06,761 INFO L399 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 566) no Hoare annotation was computed. [2018-01-30 01:10:06,761 INFO L399 ceAbstractionStarter]: For program point L560'(lines 560 562) no Hoare annotation was computed. [2018-01-30 01:10:06,761 INFO L395 ceAbstractionStarter]: At program point L564(line 564) the Hoare annotation is: (and (<= 1 main_~n~5) (= (select |#length| main_~nondetArea~5.base) main_~n~5) (= main_~nondetArea~5.offset 0) (= (select |#length| |main_#t~malloc6.base|) main_~n~5) (<= main_~n~5 2147483647) (= 1 (select |#valid| |main_#t~malloc6.base|)) (= (store |#valid| |main_#t~malloc6.base| (select (store |#valid| |main_#t~malloc6.base| 0) |main_#t~malloc6.base|)) |old(#valid)|) (= 1 (select |#valid| main_~nondetArea~5.base)) (= |main_#t~malloc6.offset| 0)) [2018-01-30 01:10:06,761 INFO L399 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-01-30 01:10:06,761 INFO L399 ceAbstractionStarter]: For program point L563'(line 563) no Hoare annotation was computed. [2018-01-30 01:10:06,761 INFO L399 ceAbstractionStarter]: For program point L561(line 561) no Hoare annotation was computed. [2018-01-30 01:10:06,761 INFO L399 ceAbstractionStarter]: For program point L564'(line 564) no Hoare annotation was computed. [2018-01-30 01:10:06,762 INFO L399 ceAbstractionStarter]: For program point L557(lines 557 559) no Hoare annotation was computed. [2018-01-30 01:10:06,762 INFO L399 ceAbstractionStarter]: For program point mainFINAL(lines 553 566) no Hoare annotation was computed. [2018-01-30 01:10:06,762 INFO L399 ceAbstractionStarter]: For program point L556(line 556) no Hoare annotation was computed. [2018-01-30 01:10:06,762 INFO L399 ceAbstractionStarter]: For program point L555(line 555) no Hoare annotation was computed. [2018-01-30 01:10:06,762 INFO L399 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-01-30 01:10:06,762 INFO L399 ceAbstractionStarter]: For program point L565(line 565) no Hoare annotation was computed. [2018-01-30 01:10:06,762 INFO L399 ceAbstractionStarter]: For program point L558(line 558) no Hoare annotation was computed. [2018-01-30 01:10:06,762 INFO L399 ceAbstractionStarter]: For program point mainEXIT(lines 553 566) no Hoare annotation was computed. [2018-01-30 01:10:06,762 INFO L395 ceAbstractionStarter]: At program point mainENTRY(lines 553 566) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-30 01:10:06,763 INFO L399 ceAbstractionStarter]: For program point L563''(line 563) no Hoare annotation was computed. [2018-01-30 01:10:06,763 INFO L399 ceAbstractionStarter]: For program point L554'(line 554) no Hoare annotation was computed. [2018-01-30 01:10:06,763 INFO L399 ceAbstractionStarter]: For program point L555'(line 555) no Hoare annotation was computed. [2018-01-30 01:10:06,763 INFO L399 ceAbstractionStarter]: For program point L556'(line 556) no Hoare annotation was computed. [2018-01-30 01:10:06,763 INFO L399 ceAbstractionStarter]: For program point L555''(line 555) no Hoare annotation was computed. [2018-01-30 01:10:06,763 INFO L399 ceAbstractionStarter]: For program point L556''(line 556) no Hoare annotation was computed. [2018-01-30 01:10:06,763 INFO L399 ceAbstractionStarter]: For program point L557''(lines 557 559) no Hoare annotation was computed. [2018-01-30 01:10:06,763 INFO L399 ceAbstractionStarter]: For program point mainErr0EnsuresViolation(lines 553 566) no Hoare annotation was computed. [2018-01-30 01:10:06,775 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,777 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,778 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,778 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,778 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,779 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,779 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,779 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,779 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,780 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,780 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,780 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,792 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,792 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,793 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,794 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,795 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,795 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,795 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,796 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,796 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,796 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,797 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,797 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 01:10:06 BasicIcfg [2018-01-30 01:10:06,800 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-30 01:10:06,801 INFO L168 Benchmark]: Toolchain (without parser) took 30733.38 ms. Allocated memory was 308.3 MB in the beginning and 820.0 MB in the end (delta: 511.7 MB). Free memory was 267.2 MB in the beginning and 488.1 MB in the end (delta: -221.0 MB). Peak memory consumption was 290.7 MB. Max. memory is 5.3 GB. [2018-01-30 01:10:06,802 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 308.3 MB. Free memory is still 273.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 01:10:06,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.43 ms. Allocated memory is still 308.3 MB. Free memory was 267.2 MB in the beginning and 257.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-30 01:10:06,803 INFO L168 Benchmark]: Boogie Preprocessor took 40.22 ms. Allocated memory is still 308.3 MB. Free memory was 257.1 MB in the beginning and 255.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-30 01:10:06,803 INFO L168 Benchmark]: RCFGBuilder took 559.46 ms. Allocated memory is still 308.3 MB. Free memory was 255.1 MB in the beginning and 238.2 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. [2018-01-30 01:10:06,804 INFO L168 Benchmark]: IcfgTransformer took 5512.95 ms. Allocated memory was 308.3 MB in the beginning and 626.5 MB in the end (delta: 318.2 MB). Free memory was 238.2 MB in the beginning and 509.1 MB in the end (delta: -270.9 MB). Peak memory consumption was 47.3 MB. Max. memory is 5.3 GB. [2018-01-30 01:10:06,804 INFO L168 Benchmark]: TraceAbstraction took 24260.48 ms. Allocated memory was 626.5 MB in the beginning and 820.0 MB in the end (delta: 193.5 MB). Free memory was 509.1 MB in the beginning and 488.1 MB in the end (delta: 21.0 MB). Peak memory consumption was 214.4 MB. Max. memory is 5.3 GB. [2018-01-30 01:10:06,806 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 308.3 MB. Free memory is still 273.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 350.43 ms. Allocated memory is still 308.3 MB. Free memory was 267.2 MB in the beginning and 257.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 40.22 ms. Allocated memory is still 308.3 MB. Free memory was 257.1 MB in the beginning and 255.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 559.46 ms. Allocated memory is still 308.3 MB. Free memory was 255.1 MB in the beginning and 238.2 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. * IcfgTransformer took 5512.95 ms. Allocated memory was 308.3 MB in the beginning and 626.5 MB in the end (delta: 318.2 MB). Free memory was 238.2 MB in the beginning and 509.1 MB in the end (delta: -270.9 MB). Peak memory consumption was 47.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 24260.48 ms. Allocated memory was 626.5 MB in the beginning and 820.0 MB in the end (delta: 193.5 MB). Free memory was 509.1 MB in the beginning and 488.1 MB in the end (delta: 21.0 MB). Peak memory consumption was 214.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 55 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 602 LocStat_NO_SUPPORTING_DISEQUALITIES : 149 LocStat_NO_DISJUNCTIONS : -110 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 74 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 85 TransStat_NO_SUPPORTING_DISEQUALITIES : 7 TransStat_NO_DISJUNCTIONS : 74 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 1.054025 RENAME_VARIABLES(MILLISECONDS) : 0.024283 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.472635 PROJECTAWAY(MILLISECONDS) : 0.679195 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.112764 DISJOIN(MILLISECONDS) : 0.343558 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.041815 ADD_EQUALITY(MILLISECONDS) : 0.048937 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.035386 #CONJOIN_DISJUNCTIVE : 398 #RENAME_VARIABLES : 918 #UNFREEZE : 0 #CONJOIN : 646 #PROJECTAWAY : 637 #ADD_WEAK_EQUALITY : 4 #DISJOIN : 113 #RENAME_VARIABLES_DISJUNCTIVE : 918 #ADD_EQUALITY : 85 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 6 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: HeapSeparatorStatistics #COUNT_NEW_ARRAY_VARS_[#memory_int] : 1 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_0 : 1 COUNT_BLOCKS_for_[#memory_int]_at_dim_0 : 1 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_1 : 1 COUNT_BLOCKS_for_[#memory_int]_at_dim_1 : 1 COUNT_ARRAY_READS for [#memory_int] : 1 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 553]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 546]: Loop Invariant [2018-01-30 01:10:06,822 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,822 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,823 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,823 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,823 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,823 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,824 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,824 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,824 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,824 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,825 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,825 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,828 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,828 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,829 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,829 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,829 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,829 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,830 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,830 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,830 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,830 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,830 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:10:06,831 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: ((((((\old(n) < 1 || (((((((((1 == \valid[s] && cp + 1 <= unknown-#length-unknown[cp]) && 1 == \valid[cp]) && n + 1 == unknown-#length-unknown[cp]) && !((unknown-#length-unknown[cp] + 4294967295) % 4294967296 == 0)) && cp + 1 == unknown-#length-unknown[cp] % 4294967296) && \old(n) == unknown-#length-unknown[s]) && unknown-#length-unknown[cp] <= 2147483647) && 0 <= cp) && s == 0)) || !(0 == s)) || ((((((1 == \valid[s] && n == unknown-#length-unknown[s]) && 1 == \valid[cp]) && \old(n) == unknown-#length-unknown[s]) && cp == n % 4294967296) && n == unknown-#length-unknown[cp]) && s == 0)) || (((((((1 == \valid[s] && cp + 2 <= unknown-#length-unknown[cp]) && 1 == \valid[cp]) && cp + 4294967296 * ((-cp + (n + 4294967295)) / 4294967296) <= n) && 1 <= cp) && \old(n) == unknown-#length-unknown[s]) && cp + 4294967296 * (n / 4294967296) <= n) && s == 0)) || !(\old(n) == unknown-#length-unknown[s])) || !(1 == \valid[s])) || 2147483647 < \old(n) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 57 locations, 3 error locations. SAFE Result, 23.9s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 17.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 185 SDtfs, 531 SDslu, 1584 SDs, 0 SdLazy, 1104 SolverSat, 72 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 198 GetRequests, 55 SyntacticMatches, 3 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1223 ImplicationChecksByTransitivity, 14.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 10 NumberOfFragments, 224 HoareAnnotationTreeSize, 7 FomulaSimplifications, 207 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 396 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 243 NumberOfCodeBlocks, 243 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 236 ConstructedInterpolants, 0 QuantifiedInterpolants, 137123 SizeOfPredicates, 30 NumberOfNonLiveVariables, 212 ConjunctsInSsa, 98 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 0/46 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cmemrchr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-Benchmark-0-2018-01-30_01-10-06-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cmemrchr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-VPDomainBenchmark-0-2018-01-30_01-10-06-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cmemrchr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-BenchmarkWithCounters-0-2018-01-30_01-10-06-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cmemrchr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-HeapSeparatorBenchmark-0-2018-01-30_01-10-06-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cmemrchr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-30_01-10-06-837.csv Received shutdown request...