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 0.1.23-5f7ec6e [2018-01-31 09:27:30,167 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-31 09:27:30,169 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-31 09:27:30,192 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-31 09:27:30,192 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-31 09:27:30,193 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-31 09:27:30,194 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-31 09:27:30,198 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-31 09:27:30,200 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-31 09:27:30,201 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-31 09:27:30,203 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-31 09:27:30,203 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-31 09:27:30,204 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-31 09:27:30,205 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-31 09:27:30,206 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-31 09:27:30,219 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-31 09:27:30,221 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-31 09:27:30,223 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-31 09:27:30,224 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-31 09:27:30,225 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-31 09:27:30,231 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-31 09:27:30,232 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-31 09:27:30,232 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-31 09:27:30,233 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-31 09:27:30,233 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-31 09:27:30,235 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-31 09:27:30,238 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-31 09:27:30,239 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-31 09:27:30,239 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-31 09:27:30,239 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-31 09:27:30,240 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-31 09:27:30,240 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 [2018-01-31 09:27:30,254 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-31 09:27:30,255 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-31 09:27:30,255 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-31 09:27:30,256 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-31 09:27:30,256 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-31 09:27:30,256 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-31 09:27:30,256 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-31 09:27:30,257 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-31 09:27:30,257 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-31 09:27:30,257 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-31 09:27:30,257 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-31 09:27:30,257 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-31 09:27:30,258 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-31 09:27:30,258 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-31 09:27:30,258 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-31 09:27:30,258 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-31 09:27:30,258 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-31 09:27:30,259 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-31 09:27:30,259 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-31 09:27:30,259 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-31 09:27:30,259 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-31 09:27:30,259 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-31 09:27:30,260 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-31 09:27:30,260 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-31 09:27:30,260 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-31 09:27:30,260 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-31 09:27:30,260 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-31 09:27:30,260 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-31 09:27:30,261 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-31 09:27:30,261 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-31 09:27:30,262 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-31 09:27:30,262 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-31 09:27:30,263 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-31 09:27:30,263 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-31 09:27:30,320 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-31 09:27:30,334 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-31 09:27:30,338 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-31 09:27:30,341 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-31 09:27:30,341 INFO L276 PluginConnector]: CDTParser initialized [2018-01-31 09:27:30,342 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cmemrchr-alloca_true-valid-memsafety_true-termination.i [2018-01-31 09:27:30,554 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-31 09:27:30,563 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-01-31 09:27:30,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-31 09:27:30,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-31 09:27:30,571 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-31 09:27:30,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 09:27:30" (1/1) ... [2018-01-31 09:27:30,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a7579a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:27:30, skipping insertion in model container [2018-01-31 09:27:30,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 09:27:30" (1/1) ... [2018-01-31 09:27:30,596 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-31 09:27:30,651 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-31 09:27:30,806 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-31 09:27:30,841 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-31 09:27:30,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:27:30 WrapperNode [2018-01-31 09:27:30,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-31 09:27:30,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-31 09:27:30,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-31 09:27:30,853 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-31 09:27:30,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:27:30" (1/1) ... [2018-01-31 09:27:30,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:27:30" (1/1) ... [2018-01-31 09:27:30,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:27:30" (1/1) ... [2018-01-31 09:27:30,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:27:30" (1/1) ... [2018-01-31 09:27:30,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:27:30" (1/1) ... [2018-01-31 09:27:30,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:27:30" (1/1) ... [2018-01-31 09:27:30,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:27:30" (1/1) ... [2018-01-31 09:27:30,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-31 09:27:30,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-31 09:27:30,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-31 09:27:30,895 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-31 09:27:30,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:27:30" (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 [2018-01-31 09:27:30,969 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-31 09:27:30,969 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-31 09:27:30,969 INFO L136 BoogieDeclarations]: Found implementation of procedure cmemrchr [2018-01-31 09:27:30,969 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-31 09:27:30,969 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-31 09:27:30,969 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-31 09:27:30,969 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-31 09:27:30,969 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-31 09:27:30,969 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-31 09:27:30,970 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-31 09:27:30,970 INFO L128 BoogieDeclarations]: Found specification of procedure cmemrchr [2018-01-31 09:27:30,970 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-31 09:27:30,970 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-31 09:27:30,970 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-31 09:27:31,419 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-31 09:27:31,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:27:31 BoogieIcfgContainer [2018-01-31 09:27:31,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-31 09:27:31,420 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-01-31 09:27:31,420 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-01-31 09:27:31,421 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-01-31 09:27:31,426 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:27:31" (1/1) ... [2018-01-31 09:27:31,437 INFO L103 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-01-31 09:27:31,438 INFO L104 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-01-31 09:27:31,438 INFO L150 apSepIcfgTransformer]: starting freeze-var-style preprocessing [2018-01-31 09:27:31,470 INFO L162 apSepIcfgTransformer]: finished StoreIndexFreezer, created 3 freeze vars and freeze var literals (each corresponds to one heap write) [2018-01-31 09:27:31,491 INFO L221 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-01-31 09:27:31,561 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-31 09:27:35,563 INFO L314 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. [2018-01-31 09:27:35,566 INFO L229 apSepIcfgTransformer]: finished equality analysis [2018-01-31 09:27:35,579 INFO L244 HeapSepPreAnalysis]: Number of read from array group [#memory_int] : 1 [2018-01-31 09:27:35,580 INFO L241 apSepIcfgTransformer]: Finished pre analysis before partitioning [2018-01-31 09:27:35,580 INFO L242 apSepIcfgTransformer]: array groups: Set: [#memory_int] [2018-01-31 09:27:35,583 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'')) [2018-01-31 09:27:35,587 INFO L547 PartitionManager]: partitioning result: [2018-01-31 09:27:35,587 INFO L552 PartitionManager]: location blocks for array group [#memory_int] [2018-01-31 09:27:35,588 INFO L562 PartitionManager]: at dimension 0 [2018-01-31 09:27:35,588 INFO L563 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-01-31 09:27:35,588 INFO L564 PartitionManager]: # location blocks :1 [2018-01-31 09:27:35,588 INFO L562 PartitionManager]: at dimension 1 [2018-01-31 09:27:35,588 INFO L563 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-01-31 09:27:35,589 INFO L564 PartitionManager]: # location blocks :1 [2018-01-31 09:27:35,589 INFO L86 ransitionTransformer]: executing heap partitioning transformation [2018-01-31 09:27:35,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 09:27:35 BasicIcfg [2018-01-31 09:27:35,606 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-01-31 09:27:35,609 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-31 09:27:35,609 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-31 09:27:35,614 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-31 09:27:35,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 09:27:30" (1/4) ... [2018-01-31 09:27:35,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dfded61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 09:27:35, skipping insertion in model container [2018-01-31 09:27:35,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:27:30" (2/4) ... [2018-01-31 09:27:35,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dfded61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 09:27:35, skipping insertion in model container [2018-01-31 09:27:35,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:27:31" (3/4) ... [2018-01-31 09:27:35,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dfded61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 09:27:35, skipping insertion in model container [2018-01-31 09:27:35,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 09:27:35" (4/4) ... [2018-01-31 09:27:35,618 INFO L107 eAbstractionObserver]: Analyzing ICFG HeapSeparatedIcfg [2018-01-31 09:27:35,627 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-31 09:27:35,635 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-31 09:27:35,768 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-31 09:27:35,768 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-31 09:27:35,768 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-31 09:27:35,769 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-31 09:27:35,769 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-31 09:27:35,769 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-31 09:27:35,769 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-31 09:27:35,769 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-31 09:27:35,770 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-31 09:27:35,785 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2018-01-31 09:27:35,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-31 09:27:35,791 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:27:35,793 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] [2018-01-31 09:27:35,793 INFO L371 AbstractCegarLoop]: === Iteration 1 === [cmemrchrErr0RequiresViolation, cmemrchrErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-31 09:27:35,798 INFO L82 PathProgramCache]: Analyzing trace with hash 46770442, now seen corresponding path program 1 times [2018-01-31 09:27:35,800 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:27:35,801 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:27:35,859 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:27:35,859 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:27:35,859 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:27:35,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:27:35,930 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:27:36,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:27:36,230 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:27:36,231 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-31 09:27:36,233 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-31 09:27:36,243 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-31 09:27:36,243 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-31 09:27:36,246 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 4 states. [2018-01-31 09:27:37,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:27:37,019 INFO L93 Difference]: Finished difference Result 68 states and 76 transitions. [2018-01-31 09:27:37,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-31 09:27:37,021 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-01-31 09:27:37,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:27:37,034 INFO L225 Difference]: With dead ends: 68 [2018-01-31 09:27:37,034 INFO L226 Difference]: Without dead ends: 41 [2018-01-31 09:27:37,039 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-31 09:27:37,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-01-31 09:27:37,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-01-31 09:27:37,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-01-31 09:27:37,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2018-01-31 09:27:37,081 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 21 [2018-01-31 09:27:37,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:27:37,081 INFO L432 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2018-01-31 09:27:37,082 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-31 09:27:37,082 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2018-01-31 09:27:37,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-31 09:27:37,083 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:27:37,083 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:27:37,083 INFO L371 AbstractCegarLoop]: === Iteration 2 === [cmemrchrErr0RequiresViolation, cmemrchrErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-31 09:27:37,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1376807315, now seen corresponding path program 1 times [2018-01-31 09:27:37,083 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:27:37,084 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:27:37,086 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:27:37,086 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:27:37,086 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:27:37,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:27:37,129 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:27:37,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:27:37,399 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:27:37,399 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-31 09:27:37,401 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-31 09:27:37,401 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-31 09:27:37,401 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-01-31 09:27:37,401 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 8 states. [2018-01-31 09:27:37,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:27:37,635 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2018-01-31 09:27:37,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-31 09:27:37,636 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2018-01-31 09:27:37,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:27:37,637 INFO L225 Difference]: With dead ends: 41 [2018-01-31 09:27:37,637 INFO L226 Difference]: Without dead ends: 40 [2018-01-31 09:27:37,638 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2018-01-31 09:27:37,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-01-31 09:27:37,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-01-31 09:27:37,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-01-31 09:27:37,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2018-01-31 09:27:37,645 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 26 [2018-01-31 09:27:37,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:27:37,645 INFO L432 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2018-01-31 09:27:37,645 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-31 09:27:37,645 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2018-01-31 09:27:37,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-31 09:27:37,646 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:27:37,646 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:27:37,646 INFO L371 AbstractCegarLoop]: === Iteration 3 === [cmemrchrErr0RequiresViolation, cmemrchrErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-31 09:27:37,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1376807317, now seen corresponding path program 1 times [2018-01-31 09:27:37,647 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:27:37,647 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:27:37,648 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:27:37,648 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:27:37,648 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:27:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:27:37,673 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:27:38,624 WARN L146 SmtUtils]: Spent 346ms on a formula simplification. DAG size of input: 26 DAG size of output 16 [2018-01-31 09:27:38,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:27:38,688 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:27:38,689 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-01-31 09:27:38,689 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-01-31 09:27:38,689 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-01-31 09:27:38,690 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-01-31 09:27:38,690 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 13 states. [2018-01-31 09:27:39,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:27:39,344 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2018-01-31 09:27:39,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-01-31 09:27:39,344 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26 [2018-01-31 09:27:39,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:27:39,346 INFO L225 Difference]: With dead ends: 62 [2018-01-31 09:27:39,346 INFO L226 Difference]: Without dead ends: 61 [2018-01-31 09:27:39,347 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2018-01-31 09:27:39,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-01-31 09:27:39,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 44. [2018-01-31 09:27:39,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-01-31 09:27:39,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2018-01-31 09:27:39,354 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 26 [2018-01-31 09:27:39,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:27:39,355 INFO L432 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2018-01-31 09:27:39,355 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-01-31 09:27:39,355 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2018-01-31 09:27:39,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-01-31 09:27:39,356 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:27:39,356 INFO L351 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] [2018-01-31 09:27:39,356 INFO L371 AbstractCegarLoop]: === Iteration 4 === [cmemrchrErr0RequiresViolation, cmemrchrErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-31 09:27:39,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1795636590, now seen corresponding path program 1 times [2018-01-31 09:27:39,357 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:27:39,357 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:27:39,358 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:27:39,358 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:27:39,358 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:27:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:27:39,397 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:27:39,921 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:27:39,921 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-31 09:27:39,922 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 [2018-01-31 09:27:39,930 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:27:39,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:27:39,977 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-31 09:27:40,107 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 [2018-01-31 09:27:40,108 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-31 09:27:40,115 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-31 09:27:40,115 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-01-31 09:27:41,081 WARN L143 SmtUtils]: Spent 193ms on a formula simplification that was a NOOP. DAG size: 29 [2018-01-31 09:27:41,286 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:27:41,306 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-31 09:27:41,306 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16] total 29 [2018-01-31 09:27:41,307 INFO L409 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-01-31 09:27:41,307 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-01-31 09:27:41,307 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=792, Unknown=0, NotChecked=0, Total=870 [2018-01-31 09:27:41,308 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand 30 states. [2018-01-31 09:27:41,955 WARN L146 SmtUtils]: Spent 106ms on a formula simplification. DAG size of input: 43 DAG size of output 41 [2018-01-31 09:27:42,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:27:42,720 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2018-01-31 09:27:42,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-01-31 09:27:42,721 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 37 [2018-01-31 09:27:42,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:27:42,722 INFO L225 Difference]: With dead ends: 58 [2018-01-31 09:27:42,723 INFO L226 Difference]: Without dead ends: 57 [2018-01-31 09:27:42,724 INFO L554 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 [2018-01-31 09:27:42,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-01-31 09:27:42,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2018-01-31 09:27:42,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-01-31 09:27:42,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2018-01-31 09:27:42,732 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 37 [2018-01-31 09:27:42,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:27:42,732 INFO L432 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2018-01-31 09:27:42,732 INFO L433 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-01-31 09:27:42,732 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2018-01-31 09:27:42,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-01-31 09:27:42,734 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:27:42,734 INFO L351 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] [2018-01-31 09:27:42,734 INFO L371 AbstractCegarLoop]: === Iteration 5 === [cmemrchrErr0RequiresViolation, cmemrchrErr1RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-31 09:27:42,734 INFO L82 PathProgramCache]: Analyzing trace with hash 758364149, now seen corresponding path program 2 times [2018-01-31 09:27:42,734 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:27:42,734 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:27:42,735 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:27:42,736 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:27:42,736 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:27:42,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:27:42,774 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:27:43,480 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:27:43,480 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-31 09:27:43,480 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 [2018-01-31 09:27:43,485 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-31 09:27:43,500 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-31 09:27:43,507 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-31 09:27:43,510 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-31 09:27:43,515 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-31 09:27:43,572 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 [2018-01-31 09:27:43,573 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-31 09:27:43,619 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-31 09:27:43,620 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-01-31 09:27:44,621 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:27:44,655 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-31 09:27:44,655 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 20] total 35 [2018-01-31 09:27:44,656 INFO L409 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-01-31 09:27:44,656 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-01-31 09:27:44,657 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1165, Unknown=0, NotChecked=0, Total=1260 [2018-01-31 09:27:44,657 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 36 states. [2018-01-31 09:27:46,840 WARN L146 SmtUtils]: Spent 251ms on a formula simplification. DAG size of input: 62 DAG size of output 45 [2018-01-31 09:27:47,386 WARN L146 SmtUtils]: Spent 399ms on a formula simplification. DAG size of input: 59 DAG size of output 42 [2018-01-31 09:27:49,320 WARN L146 SmtUtils]: Spent 1591ms on a formula simplification. DAG size of input: 85 DAG size of output 56 [2018-01-31 09:27:52,275 WARN L146 SmtUtils]: Spent 204ms on a formula simplification. DAG size of input: 59 DAG size of output 44 [2018-01-31 09:27:59,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:27:59,034 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2018-01-31 09:27:59,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-01-31 09:27:59,035 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 48 [2018-01-31 09:27:59,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:27:59,035 INFO L225 Difference]: With dead ends: 68 [2018-01-31 09:27:59,035 INFO L226 Difference]: Without dead ends: 0 [2018-01-31 09:27:59,038 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 29 SyntacticMatches, 3 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=440, Invalid=3591, Unknown=1, NotChecked=0, Total=4032 [2018-01-31 09:27:59,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-31 09:27:59,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-31 09:27:59,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-31 09:27:59,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-31 09:27:59,039 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2018-01-31 09:27:59,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:27:59,039 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-31 09:27:59,039 INFO L433 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-01-31 09:27:59,039 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-31 09:27:59,039 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-31 09:27:59,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-31 09:28:01,887 WARN L146 SmtUtils]: Spent 2771ms on a formula simplification. DAG size of input: 104 DAG size of output 70 [2018-01-31 09:28:01,977 INFO L399 ceAbstractionStarter]: For program point L1(lines 1 566) no Hoare annotation was computed. [2018-01-31 09:28:01,977 INFO L399 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 566) no Hoare annotation was computed. [2018-01-31 09:28:01,977 INFO L395 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 566) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-31 09:28:01,977 INFO L399 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 566) no Hoare annotation was computed. [2018-01-31 09:28:01,977 INFO L399 ceAbstractionStarter]: For program point cmemrchrFINAL(lines 540 552) no Hoare annotation was computed. [2018-01-31 09:28:01,977 INFO L399 ceAbstractionStarter]: For program point L540(lines 540 552) no Hoare annotation was computed. [2018-01-31 09:28:01,977 INFO L399 ceAbstractionStarter]: For program point L546(lines 546 549) no Hoare annotation was computed. [2018-01-31 09:28:01,978 INFO L399 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-01-31 09:28:01,978 INFO L399 ceAbstractionStarter]: For program point L544(lines 544 550) no Hoare annotation was computed. [2018-01-31 09:28:01,978 INFO L399 ceAbstractionStarter]: For program point L543(line 543) no Hoare annotation was computed. [2018-01-31 09:28:01,978 INFO L399 ceAbstractionStarter]: For program point L549(line 549) no Hoare annotation was computed. [2018-01-31 09:28:01,978 INFO L399 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-01-31 09:28:01,978 INFO L399 ceAbstractionStarter]: For program point L547(line 547) no Hoare annotation was computed. [2018-01-31 09:28:01,978 INFO L399 ceAbstractionStarter]: For program point L544'(lines 544 550) no Hoare annotation was computed. [2018-01-31 09:28:01,978 INFO L399 ceAbstractionStarter]: For program point L547'''(line 547) no Hoare annotation was computed. [2018-01-31 09:28:01,978 INFO L399 ceAbstractionStarter]: For program point L546'(lines 546 549) no Hoare annotation was computed. [2018-01-31 09:28:01,979 INFO L399 ceAbstractionStarter]: For program point cmemrchrErr0RequiresViolation(lines 1 566) no Hoare annotation was computed. [2018-01-31 09:28:01,979 INFO L399 ceAbstractionStarter]: For program point L547'''''''(line 547) no Hoare annotation was computed. [2018-01-31 09:28:01,979 INFO L399 ceAbstractionStarter]: For program point L540'(lines 540 552) no Hoare annotation was computed. [2018-01-31 09:28:01,979 INFO L399 ceAbstractionStarter]: For program point cmemrchrErr1RequiresViolation(lines 1 566) no Hoare annotation was computed. [2018-01-31 09:28:01,979 INFO L399 ceAbstractionStarter]: For program point L547''''(line 547) no Hoare annotation was computed. [2018-01-31 09:28:01,979 INFO L399 ceAbstractionStarter]: For program point cmemrchrEXIT(lines 540 552) no Hoare annotation was computed. [2018-01-31 09:28:01,979 INFO L402 ceAbstractionStarter]: At program point cmemrchrENTRY(lines 540 552) the Hoare annotation is: true [2018-01-31 09:28:01,980 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|)))) [2018-01-31 09:28:01,980 INFO L399 ceAbstractionStarter]: For program point L547'(line 547) no Hoare annotation was computed. [2018-01-31 09:28:01,980 INFO L399 ceAbstractionStarter]: For program point L547''''''(line 547) no Hoare annotation was computed. [2018-01-31 09:28:01,980 INFO L399 ceAbstractionStarter]: For program point L549''(line 549) no Hoare annotation was computed. [2018-01-31 09:28:01,980 INFO L399 ceAbstractionStarter]: For program point L547'''''(line 547) no Hoare annotation was computed. [2018-01-31 09:28:01,980 INFO L399 ceAbstractionStarter]: For program point L549'(line 549) no Hoare annotation was computed. [2018-01-31 09:28:01,980 INFO L399 ceAbstractionStarter]: For program point L547''(line 547) no Hoare annotation was computed. [2018-01-31 09:28:01,980 INFO L402 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 566) the Hoare annotation is: true [2018-01-31 09:28:01,981 INFO L399 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 566) no Hoare annotation was computed. [2018-01-31 09:28:01,981 INFO L402 ceAbstractionStarter]: At program point L1(lines 1 566) the Hoare annotation is: true [2018-01-31 09:28:01,981 INFO L399 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 566) no Hoare annotation was computed. [2018-01-31 09:28:01,981 INFO L399 ceAbstractionStarter]: For program point L560'(lines 560 562) no Hoare annotation was computed. [2018-01-31 09:28:01,981 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)) [2018-01-31 09:28:01,981 INFO L399 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-01-31 09:28:01,981 INFO L399 ceAbstractionStarter]: For program point L563'(line 563) no Hoare annotation was computed. [2018-01-31 09:28:01,981 INFO L399 ceAbstractionStarter]: For program point L561(line 561) no Hoare annotation was computed. [2018-01-31 09:28:01,982 INFO L399 ceAbstractionStarter]: For program point L564'(line 564) no Hoare annotation was computed. [2018-01-31 09:28:01,982 INFO L399 ceAbstractionStarter]: For program point L557(lines 557 559) no Hoare annotation was computed. [2018-01-31 09:28:01,982 INFO L399 ceAbstractionStarter]: For program point mainFINAL(lines 553 566) no Hoare annotation was computed. [2018-01-31 09:28:01,982 INFO L399 ceAbstractionStarter]: For program point L556(line 556) no Hoare annotation was computed. [2018-01-31 09:28:01,982 INFO L399 ceAbstractionStarter]: For program point L555(line 555) no Hoare annotation was computed. [2018-01-31 09:28:01,982 INFO L399 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-01-31 09:28:01,982 INFO L399 ceAbstractionStarter]: For program point L565(line 565) no Hoare annotation was computed. [2018-01-31 09:28:01,982 INFO L399 ceAbstractionStarter]: For program point L558(line 558) no Hoare annotation was computed. [2018-01-31 09:28:01,982 INFO L399 ceAbstractionStarter]: For program point mainEXIT(lines 553 566) no Hoare annotation was computed. [2018-01-31 09:28:01,983 INFO L395 ceAbstractionStarter]: At program point mainENTRY(lines 553 566) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-31 09:28:01,983 INFO L399 ceAbstractionStarter]: For program point L563''(line 563) no Hoare annotation was computed. [2018-01-31 09:28:01,983 INFO L399 ceAbstractionStarter]: For program point L554'(line 554) no Hoare annotation was computed. [2018-01-31 09:28:01,983 INFO L399 ceAbstractionStarter]: For program point L555'(line 555) no Hoare annotation was computed. [2018-01-31 09:28:01,983 INFO L399 ceAbstractionStarter]: For program point L556'(line 556) no Hoare annotation was computed. [2018-01-31 09:28:01,983 INFO L399 ceAbstractionStarter]: For program point L555''(line 555) no Hoare annotation was computed. [2018-01-31 09:28:01,983 INFO L399 ceAbstractionStarter]: For program point L556''(line 556) no Hoare annotation was computed. [2018-01-31 09:28:01,983 INFO L399 ceAbstractionStarter]: For program point L557''(lines 557 559) no Hoare annotation was computed. [2018-01-31 09:28:01,983 INFO L399 ceAbstractionStarter]: For program point mainErr0EnsuresViolation(lines 553 566) no Hoare annotation was computed. [2018-01-31 09:28:01,992 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:01,993 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:01,993 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:01,994 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:01,994 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:01,994 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:01,994 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:01,995 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:01,995 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:01,995 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:01,995 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:01,995 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,011 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,012 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,012 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,012 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,013 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,013 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,013 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,013 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,014 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,014 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,014 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,014 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 09:28:02 BasicIcfg [2018-01-31 09:28:02,017 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-31 09:28:02,020 INFO L168 Benchmark]: Toolchain (without parser) took 31465.21 ms. Allocated memory was 308.3 MB in the beginning and 762.3 MB in the end (delta: 454.0 MB). Free memory was 265.0 MB in the beginning and 328.2 MB in the end (delta: -63.2 MB). Peak memory consumption was 390.8 MB. Max. memory is 5.3 GB. [2018-01-31 09:28:02,021 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 308.3 MB. Free memory is still 271.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-31 09:28:02,021 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.21 ms. Allocated memory is still 308.3 MB. Free memory was 265.0 MB in the beginning and 255.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-31 09:28:02,021 INFO L168 Benchmark]: Boogie Preprocessor took 41.88 ms. Allocated memory is still 308.3 MB. Free memory was 255.0 MB in the beginning and 253.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-31 09:28:02,021 INFO L168 Benchmark]: RCFGBuilder took 525.41 ms. Allocated memory is still 308.3 MB. Free memory was 253.0 MB in the beginning and 236.0 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. [2018-01-31 09:28:02,022 INFO L168 Benchmark]: IcfgTransformer took 4188.12 ms. Allocated memory was 308.3 MB in the beginning and 585.6 MB in the end (delta: 277.3 MB). Free memory was 236.0 MB in the beginning and 492.2 MB in the end (delta: -256.1 MB). Peak memory consumption was 21.2 MB. Max. memory is 5.3 GB. [2018-01-31 09:28:02,022 INFO L168 Benchmark]: TraceAbstraction took 26409.74 ms. Allocated memory was 585.6 MB in the beginning and 762.3 MB in the end (delta: 176.7 MB). Free memory was 492.2 MB in the beginning and 328.2 MB in the end (delta: 163.9 MB). Peak memory consumption was 340.6 MB. Max. memory is 5.3 GB. [2018-01-31 09:28:02,026 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 308.3 MB. Free memory is still 271.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 288.21 ms. Allocated memory is still 308.3 MB. Free memory was 265.0 MB in the beginning and 255.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 41.88 ms. Allocated memory is still 308.3 MB. Free memory was 255.0 MB in the beginning and 253.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 525.41 ms. Allocated memory is still 308.3 MB. Free memory was 253.0 MB in the beginning and 236.0 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. * IcfgTransformer took 4188.12 ms. Allocated memory was 308.3 MB in the beginning and 585.6 MB in the end (delta: 277.3 MB). Free memory was 236.0 MB in the beginning and 492.2 MB in the end (delta: -256.1 MB). Peak memory consumption was 21.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 26409.74 ms. Allocated memory was 585.6 MB in the beginning and 762.3 MB in the end (delta: 176.7 MB). Free memory was 492.2 MB in the beginning and 328.2 MB in the end (delta: 163.9 MB). Peak memory consumption was 340.6 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) : 1.001143 RENAME_VARIABLES(MILLISECONDS) : 0.028259 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.466089 PROJECTAWAY(MILLISECONDS) : 0.663344 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.162349 DISJOIN(MILLISECONDS) : 0.310337 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.049354 ADD_EQUALITY(MILLISECONDS) : 0.033995 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.025980 #CONJOIN_DISJUNCTIVE : 392 #RENAME_VARIABLES : 888 #UNFREEZE : 0 #CONJOIN : 616 #PROJECTAWAY : 607 #ADD_WEAK_EQUALITY : 4 #DISJOIN : 105 #RENAME_VARIABLES_DISJUNCTIVE : 888 #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 [2018-01-31 09:28:02,048 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,048 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,049 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,049 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,049 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,049 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,049 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,050 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,050 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,050 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,050 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,050 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,054 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,055 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,055 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,055 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,056 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,056 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,056 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,056 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,056 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,057 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,057 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-31 09:28:02,057 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, 26.2s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 17.4s AutomataDifference, 0.0s DeadEndRemovalTime, 2.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 185 SDtfs, 531 SDslu, 1584 SDs, 0 SdLazy, 1122 SolverSat, 72 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 198 GetRequests, 55 SyntacticMatches, 3 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1223 ImplicationChecksByTransitivity, 13.3s 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, 2.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.2s 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-0-2018-01-31_09-28-02-063.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-0-2018-01-31_09-28-02-063.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-0-2018-01-31_09-28-02-063.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-0-2018-01-31_09-28-02-063.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-0-2018-01-31_09-28-02-063.csv Received shutdown request...