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_cstrcpy-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-5f7ec6e [2018-01-31 09:30:15,803 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-31 09:30:15,838 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-31 09:30:15,854 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-31 09:30:15,854 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-31 09:30:15,855 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-31 09:30:15,856 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-31 09:30:15,858 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-31 09:30:15,860 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-31 09:30:15,861 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-31 09:30:15,862 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-31 09:30:15,871 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-31 09:30:15,872 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-31 09:30:15,874 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-31 09:30:15,874 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-31 09:30:15,877 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-31 09:30:15,879 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-31 09:30:15,883 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-31 09:30:15,884 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-31 09:30:15,886 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-31 09:30:15,888 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-31 09:30:15,888 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-31 09:30:15,888 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-31 09:30:15,889 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-31 09:30:15,890 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-31 09:30:15,891 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-31 09:30:15,892 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-31 09:30:15,892 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-31 09:30:15,892 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-31 09:30:15,893 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-31 09:30:15,893 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-31 09:30:15,894 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 09:30:15,910 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-31 09:30:15,910 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-31 09:30:15,911 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-31 09:30:15,911 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-31 09:30:15,912 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-31 09:30:15,912 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-31 09:30:15,912 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-31 09:30:15,913 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-31 09:30:15,913 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-31 09:30:15,913 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-31 09:30:15,913 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-31 09:30:15,913 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-31 09:30:15,913 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-31 09:30:15,914 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-31 09:30:15,914 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-31 09:30:15,914 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-31 09:30:15,914 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-31 09:30:15,914 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-31 09:30:15,914 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-31 09:30:15,915 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-31 09:30:15,915 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-31 09:30:15,915 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-31 09:30:15,915 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-31 09:30:15,915 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-31 09:30:15,916 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-31 09:30:15,916 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-31 09:30:15,916 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-31 09:30:15,916 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-31 09:30:15,916 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-31 09:30:15,916 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-31 09:30:15,917 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-31 09:30:15,917 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-31 09:30:15,918 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-31 09:30:15,918 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-31 09:30:15,980 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-31 09:30:15,995 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-31 09:30:16,002 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-31 09:30:16,004 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-31 09:30:16,004 INFO L276 PluginConnector]: CDTParser initialized [2018-01-31 09:30:16,005 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-01-31 09:30:16,187 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-31 09:30:16,197 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-01-31 09:30:16,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-31 09:30:16,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-31 09:30:16,208 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-31 09:30:16,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 09:30:16" (1/1) ... [2018-01-31 09:30:16,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f4f4f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:30:16, skipping insertion in model container [2018-01-31 09:30:16,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 09:30:16" (1/1) ... [2018-01-31 09:30:16,230 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-31 09:30:16,275 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-31 09:30:16,419 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-31 09:30:16,448 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-31 09:30:16,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:30:16 WrapperNode [2018-01-31 09:30:16,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-31 09:30:16,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-31 09:30:16,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-31 09:30:16,462 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-31 09:30:16,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:30:16" (1/1) ... [2018-01-31 09:30:16,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:30:16" (1/1) ... [2018-01-31 09:30:16,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:30:16" (1/1) ... [2018-01-31 09:30:16,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:30:16" (1/1) ... [2018-01-31 09:30:16,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:30:16" (1/1) ... [2018-01-31 09:30:16,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:30:16" (1/1) ... [2018-01-31 09:30:16,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:30:16" (1/1) ... [2018-01-31 09:30:16,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-31 09:30:16,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-31 09:30:16,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-31 09:30:16,507 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-31 09:30:16,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:30:16" (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 09:30:16,592 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-31 09:30:16,593 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-31 09:30:16,593 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrcpy [2018-01-31 09:30:16,593 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-31 09:30:16,593 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-31 09:30:16,593 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-31 09:30:16,593 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-31 09:30:16,593 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-31 09:30:16,594 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-31 09:30:16,594 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-31 09:30:16,594 INFO L128 BoogieDeclarations]: Found specification of procedure cstrcpy [2018-01-31 09:30:16,595 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-31 09:30:16,596 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-31 09:30:16,596 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-31 09:30:17,083 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-31 09:30:17,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:30:17 BoogieIcfgContainer [2018-01-31 09:30:17,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-31 09:30:17,084 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-01-31 09:30:17,084 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-01-31 09:30:17,085 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-01-31 09:30:17,088 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:30:17" (1/1) ... [2018-01-31 09:30:17,097 INFO L103 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-01-31 09:30:17,097 INFO L104 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-01-31 09:30:17,098 INFO L150 apSepIcfgTransformer]: starting freeze-var-style preprocessing [2018-01-31 09:30:17,155 INFO L162 apSepIcfgTransformer]: finished StoreIndexFreezer, created 9 freeze vars and freeze var literals (each corresponds to one heap write) [2018-01-31 09:30:17,178 INFO L221 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-01-31 09:30:17,237 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-31 09:30:58,693 INFO L314 AbstractInterpreter]: Visited 66 different actions 325 times. Merged at 38 different actions 164 times. Never widened. Found 11 fixpoints after 3 different actions. Largest state had 54 variables. [2018-01-31 09:30:58,695 INFO L229 apSepIcfgTransformer]: finished equality analysis [2018-01-31 09:30:58,705 INFO L244 HeapSepPreAnalysis]: Number of read from array group [#memory_int] : 3 [2018-01-31 09:30:58,705 INFO L241 apSepIcfgTransformer]: Finished pre analysis before partitioning [2018-01-31 09:30:58,705 INFO L242 apSepIcfgTransformer]: array groups: Set: [#memory_int] [2018-01-31 09:30:58,705 INFO L244 apSepIcfgTransformer]: select infos: Set: ((select (select |v_#memory_int_1| v_cstrcpy_~from.base_2) v_cstrcpy_~from.offset_2), at (SUMMARY for call #t~mem3 := read~int(~from.base, ~from.offset, 1); srcloc: L544)) ((select |v_#memory_int_7| v_main_~nondetString~4.base_2), at (SUMMARY for call write~int(0, ~nondetString~4.base, ~nondetString~4.offset + (~length2~4 - 1) * 1, 1); srcloc: L559)) ((select |v_#memory_int_3| v_cstrcpy_~to.base_3), at (SUMMARY for call write~int(#t~mem3, ~to.base, ~to.offset, 1); srcloc: L544')) [2018-01-31 09:30:58,728 INFO L547 PartitionManager]: partitioning result: [2018-01-31 09:30:58,729 INFO L552 PartitionManager]: location blocks for array group [#memory_int] [2018-01-31 09:30:58,729 INFO L562 PartitionManager]: at dimension 0 [2018-01-31 09:30:58,729 INFO L563 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 3 [2018-01-31 09:30:58,729 INFO L564 PartitionManager]: # location blocks :3 [2018-01-31 09:30:58,729 INFO L562 PartitionManager]: at dimension 1 [2018-01-31 09:30:58,729 INFO L563 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-01-31 09:30:58,729 INFO L564 PartitionManager]: # location blocks :1 [2018-01-31 09:30:58,730 INFO L86 ransitionTransformer]: executing heap partitioning transformation [2018-01-31 09:30:58,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 09:30:58 BasicIcfg [2018-01-31 09:30:58,746 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-01-31 09:30:58,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-31 09:30:58,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-31 09:30:58,752 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-31 09:30:58,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 09:30:16" (1/4) ... [2018-01-31 09:30:58,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4be77fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 09:30:58, skipping insertion in model container [2018-01-31 09:30:58,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:30:16" (2/4) ... [2018-01-31 09:30:58,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4be77fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 09:30:58, skipping insertion in model container [2018-01-31 09:30:58,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:30:17" (3/4) ... [2018-01-31 09:30:58,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4be77fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 09:30:58, skipping insertion in model container [2018-01-31 09:30:58,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 09:30:58" (4/4) ... [2018-01-31 09:30:58,762 INFO L107 eAbstractionObserver]: Analyzing ICFG HeapSeparatedIcfg [2018-01-31 09:30:58,872 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-31 09:30:58,878 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-01-31 09:30:58,926 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-31 09:30:58,926 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-31 09:30:58,926 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-31 09:30:58,926 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-31 09:30:58,926 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-31 09:30:58,926 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-31 09:30:58,927 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-31 09:30:58,927 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-31 09:30:58,928 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-31 09:30:58,946 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-01-31 09:30:58,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-31 09:30:58,955 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:30:58,956 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:30:58,956 INFO L371 AbstractCegarLoop]: === Iteration 1 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:30:58,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1803990722, now seen corresponding path program 1 times [2018-01-31 09:30:58,963 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:30:58,964 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:30:59,020 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:30:59,021 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:30:59,021 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:30:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:30:59,081 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:30:59,177 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 09:30:59,180 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:30:59,180 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-31 09:30:59,183 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-31 09:30:59,193 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-31 09:30:59,194 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-31 09:30:59,196 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 3 states. [2018-01-31 09:30:59,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:30:59,352 INFO L93 Difference]: Finished difference Result 74 states and 81 transitions. [2018-01-31 09:30:59,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-31 09:30:59,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-01-31 09:30:59,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:30:59,365 INFO L225 Difference]: With dead ends: 74 [2018-01-31 09:30:59,365 INFO L226 Difference]: Without dead ends: 55 [2018-01-31 09:30:59,368 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-31 09:30:59,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-01-31 09:30:59,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-01-31 09:30:59,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-01-31 09:30:59,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2018-01-31 09:30:59,406 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 13 [2018-01-31 09:30:59,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:30:59,407 INFO L432 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2018-01-31 09:30:59,407 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-31 09:30:59,407 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2018-01-31 09:30:59,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-31 09:30:59,408 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:30:59,408 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:30:59,408 INFO L371 AbstractCegarLoop]: === Iteration 2 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:30:59,408 INFO L82 PathProgramCache]: Analyzing trace with hash -178693985, now seen corresponding path program 1 times [2018-01-31 09:30:59,409 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:30:59,409 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:30:59,410 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:30:59,410 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:30:59,410 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:30:59,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:30:59,425 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:30:59,530 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 09:30:59,530 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:30:59,530 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-31 09:30:59,532 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-31 09:30:59,532 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-31 09:30:59,532 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-31 09:30:59,533 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand 4 states. [2018-01-31 09:30:59,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:30:59,661 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2018-01-31 09:30:59,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-31 09:30:59,662 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-31 09:30:59,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:30:59,663 INFO L225 Difference]: With dead ends: 55 [2018-01-31 09:30:59,663 INFO L226 Difference]: Without dead ends: 54 [2018-01-31 09:30:59,664 INFO L554 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 [2018-01-31 09:30:59,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-01-31 09:30:59,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-01-31 09:30:59,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-01-31 09:30:59,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2018-01-31 09:30:59,671 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 16 [2018-01-31 09:30:59,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:30:59,671 INFO L432 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2018-01-31 09:30:59,671 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-31 09:30:59,672 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2018-01-31 09:30:59,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-31 09:30:59,672 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:30:59,672 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:30:59,673 INFO L371 AbstractCegarLoop]: === Iteration 3 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:30:59,673 INFO L82 PathProgramCache]: Analyzing trace with hash -178693983, now seen corresponding path program 1 times [2018-01-31 09:30:59,673 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:30:59,673 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:30:59,676 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:30:59,676 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:30:59,677 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:30:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:30:59,711 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:30:59,904 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 09:30:59,905 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:30:59,905 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-31 09:30:59,905 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-31 09:30:59,905 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-31 09:30:59,906 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-31 09:30:59,906 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 5 states. [2018-01-31 09:31:00,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:31:00,041 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2018-01-31 09:31:00,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-31 09:31:00,042 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-01-31 09:31:00,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:31:00,043 INFO L225 Difference]: With dead ends: 54 [2018-01-31 09:31:00,044 INFO L226 Difference]: Without dead ends: 53 [2018-01-31 09:31:00,044 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-01-31 09:31:00,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-01-31 09:31:00,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-01-31 09:31:00,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-01-31 09:31:00,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2018-01-31 09:31:00,050 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 16 [2018-01-31 09:31:00,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:31:00,051 INFO L432 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2018-01-31 09:31:00,051 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-31 09:31:00,051 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2018-01-31 09:31:00,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-31 09:31:00,052 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:31:00,052 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] [2018-01-31 09:31:00,052 INFO L371 AbstractCegarLoop]: === Iteration 4 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:31:00,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1408380147, now seen corresponding path program 1 times [2018-01-31 09:31:00,053 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:31:00,053 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:31:00,054 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:31:00,054 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:31:00,054 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:31:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:31:00,068 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:31:00,224 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 09:31:00,225 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:31:00,225 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-31 09:31:00,225 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-31 09:31:00,226 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-31 09:31:00,226 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-31 09:31:00,226 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand 5 states. [2018-01-31 09:31:00,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:31:00,315 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2018-01-31 09:31:00,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-31 09:31:00,315 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-01-31 09:31:00,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:31:00,316 INFO L225 Difference]: With dead ends: 53 [2018-01-31 09:31:00,316 INFO L226 Difference]: Without dead ends: 52 [2018-01-31 09:31:00,317 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-31 09:31:00,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-01-31 09:31:00,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-01-31 09:31:00,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-01-31 09:31:00,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2018-01-31 09:31:00,323 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 22 [2018-01-31 09:31:00,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:31:00,323 INFO L432 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2018-01-31 09:31:00,323 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-31 09:31:00,324 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2018-01-31 09:31:00,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-31 09:31:00,324 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:31:00,324 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] [2018-01-31 09:31:00,325 INFO L371 AbstractCegarLoop]: === Iteration 5 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:31:00,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1408380145, now seen corresponding path program 1 times [2018-01-31 09:31:00,325 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:31:00,325 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:31:00,326 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:31:00,326 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:31:00,326 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:31:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:31:00,349 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:31:00,502 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 09:31:00,503 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:31:00,503 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-31 09:31:00,503 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-31 09:31:00,503 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-31 09:31:00,503 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-01-31 09:31:00,504 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 8 states. [2018-01-31 09:31:00,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:31:00,960 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2018-01-31 09:31:00,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-31 09:31:00,960 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2018-01-31 09:31:00,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:31:00,964 INFO L225 Difference]: With dead ends: 66 [2018-01-31 09:31:00,964 INFO L226 Difference]: Without dead ends: 65 [2018-01-31 09:31:00,964 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-01-31 09:31:00,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-01-31 09:31:00,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 54. [2018-01-31 09:31:00,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-01-31 09:31:00,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2018-01-31 09:31:00,972 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 22 [2018-01-31 09:31:00,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:31:00,972 INFO L432 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2018-01-31 09:31:00,972 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-31 09:31:00,972 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2018-01-31 09:31:00,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-31 09:31:00,973 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:31:00,973 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] [2018-01-31 09:31:00,973 INFO L371 AbstractCegarLoop]: === Iteration 6 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:31:00,974 INFO L82 PathProgramCache]: Analyzing trace with hash -710111294, now seen corresponding path program 1 times [2018-01-31 09:31:00,974 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:31:00,974 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:31:00,975 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:31:00,975 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:31:00,975 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:31:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:31:00,992 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:31:01,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:31:01,202 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:31:01,202 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-31 09:31:01,203 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-31 09:31:01,203 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-31 09:31:01,203 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-31 09:31:01,203 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 8 states. [2018-01-31 09:31:01,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:31:01,323 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2018-01-31 09:31:01,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-31 09:31:01,324 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-01-31 09:31:01,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:31:01,324 INFO L225 Difference]: With dead ends: 54 [2018-01-31 09:31:01,325 INFO L226 Difference]: Without dead ends: 53 [2018-01-31 09:31:01,325 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-01-31 09:31:01,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-01-31 09:31:01,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-01-31 09:31:01,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-01-31 09:31:01,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2018-01-31 09:31:01,330 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 23 [2018-01-31 09:31:01,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:31:01,331 INFO L432 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2018-01-31 09:31:01,331 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-31 09:31:01,331 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2018-01-31 09:31:01,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-31 09:31:01,332 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:31:01,332 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] [2018-01-31 09:31:01,332 INFO L371 AbstractCegarLoop]: === Iteration 7 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:31:01,332 INFO L82 PathProgramCache]: Analyzing trace with hash -710111292, now seen corresponding path program 1 times [2018-01-31 09:31:01,333 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:31:01,333 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:31:01,334 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:31:01,334 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:31:01,334 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:31:01,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:31:01,349 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:31:01,471 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 09:31:01,471 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:31:01,471 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-31 09:31:01,472 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-31 09:31:01,472 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-31 09:31:01,472 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-01-31 09:31:01,472 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand 8 states. [2018-01-31 09:31:01,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:31:01,690 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2018-01-31 09:31:01,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-31 09:31:01,691 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-01-31 09:31:01,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:31:01,692 INFO L225 Difference]: With dead ends: 55 [2018-01-31 09:31:01,692 INFO L226 Difference]: Without dead ends: 54 [2018-01-31 09:31:01,692 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-01-31 09:31:01,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-01-31 09:31:01,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-01-31 09:31:01,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-01-31 09:31:01,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2018-01-31 09:31:01,698 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 23 [2018-01-31 09:31:01,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:31:01,698 INFO L432 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2018-01-31 09:31:01,698 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-31 09:31:01,699 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2018-01-31 09:31:01,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-31 09:31:01,699 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:31:01,700 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] [2018-01-31 09:31:01,700 INFO L371 AbstractCegarLoop]: === Iteration 8 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:31:01,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1563441027, now seen corresponding path program 1 times [2018-01-31 09:31:01,700 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:31:01,700 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:31:01,701 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:31:01,702 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:31:01,702 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:31:01,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:31:01,713 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:31:01,859 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 09:31:01,859 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:31:01,860 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-31 09:31:01,860 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-31 09:31:01,860 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-31 09:31:01,860 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-31 09:31:01,860 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 6 states. [2018-01-31 09:31:02,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:31:02,196 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2018-01-31 09:31:02,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-31 09:31:02,196 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-01-31 09:31:02,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:31:02,197 INFO L225 Difference]: With dead ends: 54 [2018-01-31 09:31:02,197 INFO L226 Difference]: Without dead ends: 42 [2018-01-31 09:31:02,197 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-01-31 09:31:02,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-01-31 09:31:02,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-01-31 09:31:02,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-01-31 09:31:02,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2018-01-31 09:31:02,203 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 24 [2018-01-31 09:31:02,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:31:02,204 INFO L432 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2018-01-31 09:31:02,204 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-31 09:31:02,204 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2018-01-31 09:31:02,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-01-31 09:31:02,205 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:31:02,205 INFO L351 BasicCegarLoop]: trace histogram [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 09:31:02,205 INFO L371 AbstractCegarLoop]: === Iteration 9 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:31:02,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1974467980, now seen corresponding path program 1 times [2018-01-31 09:31:02,206 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:31:02,206 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:31:02,206 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:31:02,207 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:31:02,207 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:31:02,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:31:02,229 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:31:02,445 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:31:02,446 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-31 09:31:02,446 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 09:31:02,452 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:31:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:31:02,495 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-31 09:31:02,549 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 14 treesize of output 12 [2018-01-31 09:31:02,565 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 12 treesize of output 15 [2018-01-31 09:31:02,569 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:397) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-01-31 09:31:02,572 INFO L168 Benchmark]: Toolchain (without parser) took 46384.94 ms. Allocated memory was 304.6 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 263.3 MB in the beginning and 1.9 GB in the end (delta: -1.6 GB). Peak memory consumption was 338.7 MB. Max. memory is 5.3 GB. [2018-01-31 09:31:02,573 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 304.6 MB. Free memory is still 269.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-31 09:31:02,573 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.65 ms. Allocated memory is still 304.6 MB. Free memory was 263.3 MB in the beginning and 253.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-31 09:31:02,574 INFO L168 Benchmark]: Boogie Preprocessor took 44.65 ms. Allocated memory is still 304.6 MB. Free memory was 253.4 MB in the beginning and 251.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-31 09:31:02,574 INFO L168 Benchmark]: RCFGBuilder took 576.83 ms. Allocated memory is still 304.6 MB. Free memory was 251.4 MB in the beginning and 232.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 5.3 GB. [2018-01-31 09:31:02,574 INFO L168 Benchmark]: IcfgTransformer took 41662.46 ms. Allocated memory was 304.6 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 232.4 MB in the beginning and 436.8 MB in the end (delta: -204.4 MB). Peak memory consumption was 1.7 GB. Max. memory is 5.3 GB. [2018-01-31 09:31:02,575 INFO L168 Benchmark]: TraceAbstraction took 3824.81 ms. Allocated memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: 94.4 MB). Free memory was 436.8 MB in the beginning and 1.9 GB in the end (delta: -1.4 GB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-31 09:31:02,577 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 304.6 MB. Free memory is still 269.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 262.65 ms. Allocated memory is still 304.6 MB. Free memory was 263.3 MB in the beginning and 253.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 44.65 ms. Allocated memory is still 304.6 MB. Free memory was 253.4 MB in the beginning and 251.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 576.83 ms. Allocated memory is still 304.6 MB. Free memory was 251.4 MB in the beginning and 232.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 5.3 GB. * IcfgTransformer took 41662.46 ms. Allocated memory was 304.6 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 232.4 MB in the beginning and 436.8 MB in the end (delta: -204.4 MB). Peak memory consumption was 1.7 GB. Max. memory is 5.3 GB. * TraceAbstraction took 3824.81 ms. Allocated memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: 94.4 MB). Free memory was 436.8 MB in the beginning and 1.9 GB in the end (delta: -1.4 GB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 54 LocStat_MAX_WEQGRAPH_SIZE : 4 LocStat_MAX_SIZEOF_WEQEDGELABEL : 3 LocStat_NO_SUPPORTING_EQUALITIES : 1430 LocStat_NO_SUPPORTING_DISEQUALITIES : 851 LocStat_NO_DISJUNCTIONS : -108 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 75 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 145 TransStat_NO_SUPPORTING_DISEQUALITIES : 9 TransStat_NO_DISJUNCTIONS : 77 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 24.992251 RENAME_VARIABLES(MILLISECONDS) : 1.491875 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 13.526513 PROJECTAWAY(MILLISECONDS) : 0.208402 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.044120 DISJOIN(MILLISECONDS) : 0.656564 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 1.521710 ADD_EQUALITY(MILLISECONDS) : 0.025849 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.007429 #CONJOIN_DISJUNCTIVE : 531 #RENAME_VARIABLES : 1139 #UNFREEZE : 0 #CONJOIN : 779 #PROJECTAWAY : 659 #ADD_WEAK_EQUALITY : 11 #DISJOIN : 134 #RENAME_VARIABLES_DISJUNCTIVE : 1113 #ADD_EQUALITY : 147 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 7 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: HeapSeparatorStatistics #COUNT_NEW_ARRAY_VARS_[#memory_int] : 3 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_0 : 3 COUNT_BLOCKS_for_[#memory_int]_at_dim_0 : 3 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_1 : 2 COUNT_BLOCKS_for_[#memory_int]_at_dim_1 : 1 COUNT_ARRAY_READS for [#memory_int] : 3 * 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/openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-Benchmark-0-2018-01-31_09-31-02-587.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-VPDomainBenchmark-0-2018-01-31_09-31-02-587.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-BenchmarkWithCounters-0-2018-01-31_09-31-02-587.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-HeapSeparatorBenchmark-0-2018-01-31_09-31-02-587.csv Received shutdown request...