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/rec_strlen-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cceb4a [2018-01-30 01:19:35,386 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-30 01:19:35,388 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-30 01:19:35,403 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-30 01:19:35,403 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-30 01:19:35,404 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-30 01:19:35,405 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-30 01:19:35,407 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-30 01:19:35,409 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-30 01:19:35,410 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-30 01:19:35,411 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-30 01:19:35,411 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-30 01:19:35,411 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-30 01:19:35,412 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-30 01:19:35,413 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-30 01:19:35,415 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-30 01:19:35,418 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-30 01:19:35,419 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-30 01:19:35,421 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-30 01:19:35,422 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-30 01:19:35,424 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-30 01:19:35,425 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-30 01:19:35,425 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-30 01:19:35,426 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-30 01:19:35,427 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-30 01:19:35,429 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-30 01:19:35,429 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-30 01:19:35,430 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-30 01:19:35,430 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-30 01:19:35,430 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-30 01:19:35,431 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-30 01:19:35,431 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 01:19:35,441 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-30 01:19:35,441 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-30 01:19:35,443 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-30 01:19:35,443 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-30 01:19:35,443 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-30 01:19:35,443 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-30 01:19:35,443 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-30 01:19:35,444 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-30 01:19:35,444 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-30 01:19:35,445 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-30 01:19:35,445 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-30 01:19:35,445 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-30 01:19:35,445 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-30 01:19:35,445 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-30 01:19:35,446 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-30 01:19:35,446 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-30 01:19:35,446 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-30 01:19:35,446 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-30 01:19:35,446 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-30 01:19:35,447 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-30 01:19:35,447 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-30 01:19:35,447 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-30 01:19:35,447 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-30 01:19:35,447 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-30 01:19:35,448 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-30 01:19:35,448 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-30 01:19:35,448 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-30 01:19:35,448 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-30 01:19:35,448 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-30 01:19:35,449 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-30 01:19:35,449 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-30 01:19:35,449 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-30 01:19:35,450 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-30 01:19:35,450 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-30 01:19:35,485 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-30 01:19:35,499 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-30 01:19:35,503 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-30 01:19:35,505 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-30 01:19:35,506 INFO L276 PluginConnector]: CDTParser initialized [2018-01-30 01:19:35,507 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/rec_strlen-alloca_true-valid-memsafety_true-termination.i [2018-01-30 01:19:35,712 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-30 01:19:35,718 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-01-30 01:19:35,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-30 01:19:35,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-30 01:19:35,724 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-30 01:19:35,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 01:19:35" (1/1) ... [2018-01-30 01:19:35,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c42bca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:19:35, skipping insertion in model container [2018-01-30 01:19:35,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 01:19:35" (1/1) ... [2018-01-30 01:19:35,749 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 01:19:35,788 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 01:19:35,892 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 01:19:35,907 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 01:19:35,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:19:35 WrapperNode [2018-01-30 01:19:35,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-30 01:19:35,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-30 01:19:35,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-30 01:19:35,914 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-30 01:19:35,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:19:35" (1/1) ... [2018-01-30 01:19:35,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:19:35" (1/1) ... [2018-01-30 01:19:35,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:19:35" (1/1) ... [2018-01-30 01:19:35,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:19:35" (1/1) ... [2018-01-30 01:19:35,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:19:35" (1/1) ... [2018-01-30 01:19:35,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:19:35" (1/1) ... [2018-01-30 01:19:35,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:19:35" (1/1) ... [2018-01-30 01:19:35,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-30 01:19:35,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-30 01:19:35,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-30 01:19:35,944 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-30 01:19:35,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:19:35" (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 01:19:35,990 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-30 01:19:35,990 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-30 01:19:35,990 INFO L136 BoogieDeclarations]: Found implementation of procedure strlen_rec [2018-01-30 01:19:35,991 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-30 01:19:35,991 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-30 01:19:35,991 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-30 01:19:35,991 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-30 01:19:35,991 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-30 01:19:35,991 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-30 01:19:35,991 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-30 01:19:35,991 INFO L128 BoogieDeclarations]: Found specification of procedure strlen_rec [2018-01-30 01:19:35,991 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-30 01:19:35,991 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-30 01:19:35,992 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-30 01:19:36,155 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-30 01:19:36,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 01:19:36 BoogieIcfgContainer [2018-01-30 01:19:36,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-30 01:19:36,156 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-01-30 01:19:36,156 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-01-30 01:19:36,157 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-01-30 01:19:36,161 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 01:19:36" (1/1) ... [2018-01-30 01:19:36,170 INFO L103 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-01-30 01:19:36,170 INFO L104 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-01-30 01:19:36,171 INFO L150 apSepIcfgTransformer]: starting freeze-var-style preprocessing [2018-01-30 01:19:36,206 INFO L162 apSepIcfgTransformer]: finished StoreIndexFreezer, created 5 freeze vars and freeze var literals (each corresponds to one heap write) [2018-01-30 01:19:36,232 INFO L221 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-01-30 01:19:36,300 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-30 01:19:42,698 INFO L311 AbstractInterpreter]: Visited 46 different actions 201 times. Merged at 15 different actions 40 times. Never widened. Found 16 fixpoints after 3 different actions. Largest state had 33 variables. [2018-01-30 01:19:42,700 INFO L229 apSepIcfgTransformer]: finished equality analysis [2018-01-30 01:19:42,711 INFO L244 HeapSepPreAnalysis]: Number of read from array group [#memory_int] : 2 [2018-01-30 01:19:42,711 INFO L241 apSepIcfgTransformer]: Finished pre analysis before partitioning [2018-01-30 01:19:42,711 INFO L242 apSepIcfgTransformer]: array groups: Set: [#memory_int] [2018-01-30 01:19:42,712 INFO L244 apSepIcfgTransformer]: select infos: Set: ((select |v_#memory_int_4| v_main_~nondetString1~3.base_2), at (SUMMARY for call write~int(0, ~nondetString1~3.base, ~nondetString1~3.offset + (~length1~3 - 1) * 1, 1); srcloc: L552)) ((select (select |v_#memory_int_5| v_strlen_rec_~p.base_3) v_strlen_rec_~p.offset_3), at (SUMMARY for call #t~mem0 := read~int(~p.base, ~p.offset, 1); srcloc: L541)) [2018-01-30 01:19:42,718 INFO L547 PartitionManager]: partitioning result: [2018-01-30 01:19:42,719 INFO L552 PartitionManager]: location blocks for array group [#memory_int] [2018-01-30 01:19:42,719 INFO L561 PartitionManager]: at dimension 0 [2018-01-30 01:19:42,719 INFO L562 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-01-30 01:19:42,719 INFO L563 PartitionManager]: # location blocks :2 [2018-01-30 01:19:42,719 INFO L561 PartitionManager]: at dimension 1 [2018-01-30 01:19:42,720 INFO L562 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-01-30 01:19:42,720 INFO L563 PartitionManager]: # location blocks :1 [2018-01-30 01:19:42,721 INFO L86 ransitionTransformer]: executing heap partitioning transformation [2018-01-30 01:19:42,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 30.01 01:19:42 BasicIcfg [2018-01-30 01:19:42,733 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-01-30 01:19:42,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-30 01:19:42,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-30 01:19:42,736 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-30 01:19:42,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 01:19:35" (1/4) ... [2018-01-30 01:19:42,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f0e1489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 01:19:42, skipping insertion in model container [2018-01-30 01:19:42,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:19:35" (2/4) ... [2018-01-30 01:19:42,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f0e1489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 01:19:42, skipping insertion in model container [2018-01-30 01:19:42,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 01:19:36" (3/4) ... [2018-01-30 01:19:42,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f0e1489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 01:19:42, skipping insertion in model container [2018-01-30 01:19:42,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 30.01 01:19:42" (4/4) ... [2018-01-30 01:19:42,739 INFO L107 eAbstractionObserver]: Analyzing ICFG HeapSeparatedIcfg [2018-01-30 01:19:42,745 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-30 01:19:42,808 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-01-30 01:19:42,847 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-30 01:19:42,847 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-30 01:19:42,848 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-30 01:19:42,848 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-30 01:19:42,848 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-30 01:19:42,848 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-30 01:19:42,848 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-30 01:19:42,849 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-30 01:19:42,849 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-30 01:19:42,863 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2018-01-30 01:19:42,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-01-30 01:19:42,868 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:19:42,870 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:19:42,870 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, strlen_recErr1RequiresViolation, strlen_recErr0RequiresViolation]=== [2018-01-30 01:19:42,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1298997398, now seen corresponding path program 1 times [2018-01-30 01:19:42,874 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:19:42,875 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:19:42,915 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:19:42,915 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:19:42,916 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:19:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:19:42,958 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:19:43,014 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 01:19:43,016 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:19:43,017 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-30 01:19:43,019 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-30 01:19:43,029 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-30 01:19:43,030 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-30 01:19:43,032 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 4 states. [2018-01-30 01:19:43,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:19:43,115 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2018-01-30 01:19:43,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-30 01:19:43,118 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-01-30 01:19:43,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:19:43,129 INFO L225 Difference]: With dead ends: 40 [2018-01-30 01:19:43,129 INFO L226 Difference]: Without dead ends: 36 [2018-01-30 01:19:43,132 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-30 01:19:43,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-01-30 01:19:43,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-01-30 01:19:43,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-01-30 01:19:43,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2018-01-30 01:19:43,171 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 9 [2018-01-30 01:19:43,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:19:43,172 INFO L432 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2018-01-30 01:19:43,172 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-30 01:19:43,172 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2018-01-30 01:19:43,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-01-30 01:19:43,173 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:19:43,173 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:19:43,173 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, strlen_recErr1RequiresViolation, strlen_recErr0RequiresViolation]=== [2018-01-30 01:19:43,173 INFO L82 PathProgramCache]: Analyzing trace with hash -1298997396, now seen corresponding path program 1 times [2018-01-30 01:19:43,173 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:19:43,173 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:19:43,174 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:19:43,174 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:19:43,175 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:19:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:19:43,182 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:19:43,269 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 01:19:43,269 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:19:43,269 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-30 01:19:43,273 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-30 01:19:43,273 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-30 01:19:43,273 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-30 01:19:43,273 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 5 states. [2018-01-30 01:19:43,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:19:43,315 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2018-01-30 01:19:43,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-30 01:19:43,316 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-01-30 01:19:43,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:19:43,317 INFO L225 Difference]: With dead ends: 36 [2018-01-30 01:19:43,317 INFO L226 Difference]: Without dead ends: 35 [2018-01-30 01:19:43,318 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-01-30 01:19:43,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-01-30 01:19:43,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-01-30 01:19:43,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-01-30 01:19:43,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2018-01-30 01:19:43,324 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 9 [2018-01-30 01:19:43,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:19:43,324 INFO L432 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2018-01-30 01:19:43,324 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-30 01:19:43,324 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2018-01-30 01:19:43,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-01-30 01:19:43,325 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:19:43,325 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:19:43,325 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, strlen_recErr1RequiresViolation, strlen_recErr0RequiresViolation]=== [2018-01-30 01:19:43,325 INFO L82 PathProgramCache]: Analyzing trace with hash -775982881, now seen corresponding path program 1 times [2018-01-30 01:19:43,325 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:19:43,325 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:19:43,326 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:19:43,326 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:19:43,327 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:19:43,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:19:43,338 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:19:43,367 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 01:19:43,367 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:19:43,367 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-30 01:19:43,367 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-30 01:19:43,368 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-30 01:19:43,368 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-30 01:19:43,368 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand 5 states. [2018-01-30 01:19:43,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:19:43,482 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2018-01-30 01:19:43,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-30 01:19:43,482 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-01-30 01:19:43,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:19:43,483 INFO L225 Difference]: With dead ends: 35 [2018-01-30 01:19:43,483 INFO L226 Difference]: Without dead ends: 34 [2018-01-30 01:19:43,484 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-30 01:19:43,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-01-30 01:19:43,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-01-30 01:19:43,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-01-30 01:19:43,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2018-01-30 01:19:43,489 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 12 [2018-01-30 01:19:43,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:19:43,489 INFO L432 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2018-01-30 01:19:43,489 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-30 01:19:43,490 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2018-01-30 01:19:43,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-01-30 01:19:43,490 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:19:43,490 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:19:43,490 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, strlen_recErr1RequiresViolation, strlen_recErr0RequiresViolation]=== [2018-01-30 01:19:43,491 INFO L82 PathProgramCache]: Analyzing trace with hash -775982879, now seen corresponding path program 1 times [2018-01-30 01:19:43,491 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:19:43,491 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:19:43,492 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:19:43,492 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:19:43,492 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:19:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:19:43,503 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:19:43,714 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 01:19:43,714 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:19:43,715 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-30 01:19:43,715 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-30 01:19:43,715 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-30 01:19:43,715 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-01-30 01:19:43,716 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand 8 states. [2018-01-30 01:19:43,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:19:43,801 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2018-01-30 01:19:43,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-30 01:19:43,801 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2018-01-30 01:19:43,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:19:43,802 INFO L225 Difference]: With dead ends: 47 [2018-01-30 01:19:43,802 INFO L226 Difference]: Without dead ends: 46 [2018-01-30 01:19:43,803 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-01-30 01:19:43,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-01-30 01:19:43,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-01-30 01:19:43,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-01-30 01:19:43,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2018-01-30 01:19:43,808 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 12 [2018-01-30 01:19:43,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:19:43,808 INFO L432 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2018-01-30 01:19:43,808 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-30 01:19:43,808 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2018-01-30 01:19:43,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-30 01:19:43,809 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:19:43,809 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:19:43,809 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, strlen_recErr1RequiresViolation, strlen_recErr0RequiresViolation]=== [2018-01-30 01:19:43,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1851007780, now seen corresponding path program 1 times [2018-01-30 01:19:43,809 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:19:43,809 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:19:43,810 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:19:43,810 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:19:43,810 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:19:43,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:19:43,819 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:19:43,866 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 01:19:43,866 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:19:43,866 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-30 01:19:43,867 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-30 01:19:43,867 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-30 01:19:43,867 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-30 01:19:43,867 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand 4 states. [2018-01-30 01:19:43,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:19:43,917 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2018-01-30 01:19:43,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-30 01:19:43,918 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-01-30 01:19:43,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:19:43,918 INFO L225 Difference]: With dead ends: 46 [2018-01-30 01:19:43,918 INFO L226 Difference]: Without dead ends: 26 [2018-01-30 01:19:43,919 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-30 01:19:43,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-01-30 01:19:43,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2018-01-30 01:19:43,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-01-30 01:19:43,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2018-01-30 01:19:43,923 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 15 [2018-01-30 01:19:43,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:19:43,924 INFO L432 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2018-01-30 01:19:43,924 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-30 01:19:43,924 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-01-30 01:19:43,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-30 01:19:43,925 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:19:43,925 INFO L350 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:19:43,925 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, strlen_recErr1RequiresViolation, strlen_recErr0RequiresViolation]=== [2018-01-30 01:19:43,925 INFO L82 PathProgramCache]: Analyzing trace with hash 324729352, now seen corresponding path program 1 times [2018-01-30 01:19:43,925 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:19:43,925 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:19:43,926 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:19:43,926 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:19:43,926 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:19:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:19:43,939 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:19:44,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:19:44,159 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:19:44,159 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 01:19:44,167 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:19:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:19:44,199 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:19:44,235 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 14 treesize of output 13 [2018-01-30 01:19:44,235 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:19:44,243 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-01-30 01:19:44,245 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 11 treesize of output 10 [2018-01-30 01:19:44,245 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-01-30 01:19:44,247 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:19:44,254 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-30 01:19:44,254 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:25, output treesize:21 [2018-01-30 01:19:44,358 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2018-01-30 01:19:44,383 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 11 [2018-01-30 01:19:44,384 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-01-30 01:19:44,395 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-30 01:19:44,412 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-01-30 01:19:44,412 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:34, output treesize:33 [2018-01-30 01:19:44,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:19:44,530 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:19:44,530 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 16 [2018-01-30 01:19:44,530 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-01-30 01:19:44,530 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-01-30 01:19:44,531 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2018-01-30 01:19:44,531 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 17 states. [2018-01-30 01:19:44,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:19:44,856 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2018-01-30 01:19:44,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-30 01:19:44,856 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 17 [2018-01-30 01:19:44,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:19:44,857 INFO L225 Difference]: With dead ends: 32 [2018-01-30 01:19:44,857 INFO L226 Difference]: Without dead ends: 31 [2018-01-30 01:19:44,857 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2018-01-30 01:19:44,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-01-30 01:19:44,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2018-01-30 01:19:44,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-01-30 01:19:44,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2018-01-30 01:19:44,862 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 17 [2018-01-30 01:19:44,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:19:44,862 INFO L432 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2018-01-30 01:19:44,863 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-01-30 01:19:44,863 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2018-01-30 01:19:44,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-30 01:19:44,863 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:19:44,863 INFO L350 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:19:44,864 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation, strlen_recErr1RequiresViolation, strlen_recErr0RequiresViolation]=== [2018-01-30 01:19:44,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1525018303, now seen corresponding path program 2 times [2018-01-30 01:19:44,864 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:19:44,864 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:19:44,865 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:19:44,865 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:19:44,865 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:19:44,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:19:44,880 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:19:45,175 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:19:45,175 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:19:45,175 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 01:19:45,183 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-30 01:19:45,191 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:19:45,195 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:19:45,197 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:19:45,199 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:19:45,202 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 01:19:45,202 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:19:45,205 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:19:45,205 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-01-30 01:19:45,212 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2018-01-30 01:19:45,214 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 16 [2018-01-30 01:19:45,216 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimArr_1 term size 6 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:270) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:243) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:445) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:237) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:185) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackTraceAbstractionRefinementStrategy.getTraceCheck(MultiTrackTraceAbstractionRefinementStrategy.java:218) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:396) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-01-30 01:19:45,219 INFO L168 Benchmark]: Toolchain (without parser) took 9506.68 ms. Allocated memory was 305.1 MB in the beginning and 932.7 MB in the end (delta: 627.6 MB). Free memory was 265.2 MB in the beginning and 569.7 MB in the end (delta: -304.5 MB). Peak memory consumption was 323.1 MB. Max. memory is 5.3 GB. [2018-01-30 01:19:45,219 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 305.1 MB. Free memory is still 271.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 01:19:45,220 INFO L168 Benchmark]: CACSL2BoogieTranslator took 194.90 ms. Allocated memory is still 305.1 MB. Free memory was 264.2 MB in the beginning and 253.9 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 5.3 GB. [2018-01-30 01:19:45,220 INFO L168 Benchmark]: Boogie Preprocessor took 29.68 ms. Allocated memory is still 305.1 MB. Free memory was 253.9 MB in the beginning and 252.9 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-01-30 01:19:45,220 INFO L168 Benchmark]: RCFGBuilder took 212.25 ms. Allocated memory is still 305.1 MB. Free memory was 252.9 MB in the beginning and 238.1 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 5.3 GB. [2018-01-30 01:19:45,221 INFO L168 Benchmark]: IcfgTransformer took 6576.57 ms. Allocated memory was 305.1 MB in the beginning and 830.5 MB in the end (delta: 525.3 MB). Free memory was 238.1 MB in the beginning and 537.6 MB in the end (delta: -299.5 MB). Peak memory consumption was 225.8 MB. Max. memory is 5.3 GB. [2018-01-30 01:19:45,221 INFO L168 Benchmark]: TraceAbstraction took 2484.75 ms. Allocated memory was 830.5 MB in the beginning and 932.7 MB in the end (delta: 102.2 MB). Free memory was 537.6 MB in the beginning and 569.7 MB in the end (delta: -32.0 MB). Peak memory consumption was 70.2 MB. Max. memory is 5.3 GB. [2018-01-30 01:19:45,223 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 305.1 MB. Free memory is still 271.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 194.90 ms. Allocated memory is still 305.1 MB. Free memory was 264.2 MB in the beginning and 253.9 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 29.68 ms. Allocated memory is still 305.1 MB. Free memory was 253.9 MB in the beginning and 252.9 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 212.25 ms. Allocated memory is still 305.1 MB. Free memory was 252.9 MB in the beginning and 238.1 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 5.3 GB. * IcfgTransformer took 6576.57 ms. Allocated memory was 305.1 MB in the beginning and 830.5 MB in the end (delta: 525.3 MB). Free memory was 238.1 MB in the beginning and 537.6 MB in the end (delta: -299.5 MB). Peak memory consumption was 225.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2484.75 ms. Allocated memory was 830.5 MB in the beginning and 932.7 MB in the end (delta: 102.2 MB). Free memory was 537.6 MB in the beginning and 569.7 MB in the end (delta: -32.0 MB). Peak memory consumption was 70.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 37 LocStat_MAX_WEQGRAPH_SIZE : 4 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 584 LocStat_NO_SUPPORTING_DISEQUALITIES : 169 LocStat_NO_DISJUNCTIONS : -74 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 56 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 86 TransStat_NO_SUPPORTING_DISEQUALITIES : 6 TransStat_NO_DISJUNCTIONS : 58 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 1.632696 RENAME_VARIABLES(MILLISECONDS) : 0.015840 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.655286 PROJECTAWAY(MILLISECONDS) : 0.634811 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.081745 DISJOIN(MILLISECONDS) : 0.361938 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.033230 ADD_EQUALITY(MILLISECONDS) : 0.019658 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.015055 #CONJOIN_DISJUNCTIVE : 264 #RENAME_VARIABLES : 623 #UNFREEZE : 0 #CONJOIN : 476 #PROJECTAWAY : 438 #ADD_WEAK_EQUALITY : 6 #DISJOIN : 127 #RENAME_VARIABLES_DISJUNCTIVE : 612 #ADD_EQUALITY : 87 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 5 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: HeapSeparatorStatistics #COUNT_NEW_ARRAY_VARS_[#memory_int] : 2 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_0 : 2 COUNT_BLOCKS_for_[#memory_int]_at_dim_0 : 2 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] : 2 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_1 term size 6 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimArr_1 term size 6: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/rec_strlen-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-Benchmark-0-2018-01-30_01-19-45-230.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/rec_strlen-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-VPDomainBenchmark-0-2018-01-30_01-19-45-230.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/rec_strlen-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-BenchmarkWithCounters-0-2018-01-30_01-19-45-230.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/rec_strlen-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-HeapSeparatorBenchmark-0-2018-01-30_01-19-45-230.csv Received shutdown request...