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_cstrcat-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-acfac67 [2018-01-28 23:29:32,376 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-28 23:29:32,377 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-28 23:29:32,392 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-28 23:29:32,392 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-28 23:29:32,393 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-28 23:29:32,394 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-28 23:29:32,396 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-28 23:29:32,398 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-28 23:29:32,399 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-28 23:29:32,400 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-28 23:29:32,400 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-28 23:29:32,401 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-28 23:29:32,402 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-28 23:29:32,403 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-28 23:29:32,405 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-28 23:29:32,407 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-28 23:29:32,409 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-28 23:29:32,410 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-28 23:29:32,412 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-28 23:29:32,414 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-28 23:29:32,414 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-28 23:29:32,415 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-28 23:29:32,416 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-28 23:29:32,416 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-28 23:29:32,418 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-28 23:29:32,418 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-28 23:29:32,419 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-28 23:29:32,419 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-28 23:29:32,419 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-28 23:29:32,420 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-28 23:29:32,420 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 [2018-01-28 23:29:32,428 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-28 23:29:32,429 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-28 23:29:32,429 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-28 23:29:32,429 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-28 23:29:32,430 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-28 23:29:32,430 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-28 23:29:32,430 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-28 23:29:32,430 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-28 23:29:32,430 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-28 23:29:32,430 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-28 23:29:32,431 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-28 23:29:32,431 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-28 23:29:32,431 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-28 23:29:32,431 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-28 23:29:32,431 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-28 23:29:32,431 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-28 23:29:32,431 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-28 23:29:32,431 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-28 23:29:32,432 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-28 23:29:32,432 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-28 23:29:32,432 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-28 23:29:32,432 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-28 23:29:32,432 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-28 23:29:32,432 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-28 23:29:32,433 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-28 23:29:32,433 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-28 23:29:32,433 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-28 23:29:32,433 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-28 23:29:32,433 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-28 23:29:32,433 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-28 23:29:32,434 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-28 23:29:32,434 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-28 23:29:32,434 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-28 23:29:32,434 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-28 23:29:32,468 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-28 23:29:32,478 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-28 23:29:32,482 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-28 23:29:32,483 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-28 23:29:32,483 INFO L276 PluginConnector]: CDTParser initialized [2018-01-28 23:29:32,484 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i [2018-01-28 23:29:32,645 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-28 23:29:32,652 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-01-28 23:29:32,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-28 23:29:32,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-28 23:29:32,660 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-28 23:29:32,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 11:29:32" (1/1) ... [2018-01-28 23:29:32,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21e00d92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:29:32, skipping insertion in model container [2018-01-28 23:29:32,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 11:29:32" (1/1) ... [2018-01-28 23:29:32,679 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-28 23:29:32,718 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-28 23:29:32,825 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-28 23:29:32,848 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-28 23:29:32,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:29:32 WrapperNode [2018-01-28 23:29:32,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-28 23:29:32,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-28 23:29:32,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-28 23:29:32,857 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-28 23:29:32,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:29:32" (1/1) ... [2018-01-28 23:29:32,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:29:32" (1/1) ... [2018-01-28 23:29:32,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:29:32" (1/1) ... [2018-01-28 23:29:32,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:29:32" (1/1) ... [2018-01-28 23:29:32,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:29:32" (1/1) ... [2018-01-28 23:29:32,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:29:32" (1/1) ... [2018-01-28 23:29:32,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:29:32" (1/1) ... [2018-01-28 23:29:32,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-28 23:29:32,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-28 23:29:32,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-28 23:29:32,898 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-28 23:29:32,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:29:32" (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 [2018-01-28 23:29:32,962 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-28 23:29:32,962 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-28 23:29:32,962 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrcat [2018-01-28 23:29:32,962 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-28 23:29:32,963 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-28 23:29:32,963 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-28 23:29:32,963 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-28 23:29:32,963 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-28 23:29:32,963 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-28 23:29:32,963 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-28 23:29:32,963 INFO L128 BoogieDeclarations]: Found specification of procedure cstrcat [2018-01-28 23:29:32,964 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-28 23:29:32,964 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-28 23:29:32,964 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-28 23:29:33,226 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-28 23:29:33,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 11:29:33 BoogieIcfgContainer [2018-01-28 23:29:33,227 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-28 23:29:33,227 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-01-28 23:29:33,227 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-01-28 23:29:33,228 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-01-28 23:29:33,230 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 11:29:33" (1/1) ... [2018-01-28 23:29:33,236 INFO L103 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-01-28 23:29:33,237 INFO L104 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-01-28 23:29:33,237 INFO L150 apSepIcfgTransformer]: starting freeze-var-style preprocessing [2018-01-28 23:29:33,296 INFO L218 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-01-28 23:29:33,343 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-28 23:31:46,835 INFO L311 AbstractInterpreter]: Visited 89 different actions 1198 times. Merged at 56 different actions 771 times. Widened at 1 different actions 17 times. Found 64 fixpoints after 13 different actions. Largest state had 39 variables. [2018-01-28 23:31:46,838 INFO L226 apSepIcfgTransformer]: finished equality analysis [2018-01-28 23:31:46,850 INFO L244 HeapSepPreAnalysis]: Number of read from array group [#memory_int] : 5 [2018-01-28 23:31:46,850 INFO L238 apSepIcfgTransformer]: Finished pre analysis before partitioning [2018-01-28 23:31:46,851 INFO L239 apSepIcfgTransformer]: array groups: Set: [#memory_int] [2018-01-28 23:31:46,851 INFO L241 apSepIcfgTransformer]: select infos: Set: ((select (select |v_#memory_int_2| |v_cstrcat_#t~post3.base_3|) |v_cstrcat_#t~post3.offset_3|), at (SUMMARY for call #t~mem5 := read~int(#t~post3.base, #t~post3.offset, 1); srcloc: L545'''')) ((select |v_#memory_int_8| v_main_~nondetString1~4.base_2), at (SUMMARY for call write~int(0, ~nondetString1~4.base, ~nondetString1~4.offset + (~length1~4 - 1) * 1, 1); srcloc: L564)) ((select |v_#memory_int_4| |v_cstrcat_#t~post2.base_3|), at (SUMMARY for call write~int(#t~mem5, #t~post2.base, #t~post2.offset, 1); srcloc: L545''''')) ((select |v_#memory_int_10| v_main_~nondetString2~4.base_2), at (SUMMARY for call write~int(0, ~nondetString2~4.base, ~nondetString2~4.offset + (~length3~4 - 1) * 1, 1); srcloc: L564')) ((select (select |v_#memory_int_1| v_cstrcat_~s.base_3) v_cstrcat_~s.offset_3), at (SUMMARY for call #t~mem1 := read~int(~s.base, ~s.offset, 1); srcloc: L544)) [2018-01-28 23:31:46,931 INFO L544 PartitionManager]: partitioning result: [2018-01-28 23:31:46,931 INFO L549 PartitionManager]: location blocks for array group [#memory_int] [2018-01-28 23:31:46,931 INFO L558 PartitionManager]: at dimension 0 [2018-01-28 23:31:46,931 INFO L559 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-01-28 23:31:46,931 INFO L560 PartitionManager]: # location blocks :1 [2018-01-28 23:31:46,932 INFO L558 PartitionManager]: at dimension 1 [2018-01-28 23:31:46,932 INFO L559 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-01-28 23:31:46,932 INFO L560 PartitionManager]: # location blocks :1 [2018-01-28 23:31:47,058 INFO L86 ransitionTransformer]: executing heap partitioning transformation [2018-01-28 23:31:47,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 28.01 11:31:47 BasicIcfg [2018-01-28 23:31:47,074 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-01-28 23:31:47,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-28 23:31:47,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-28 23:31:47,077 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-28 23:31:47,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 11:29:32" (1/4) ... [2018-01-28 23:31:47,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2307f7b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 11:31:47, skipping insertion in model container [2018-01-28 23:31:47,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 11:29:32" (2/4) ... [2018-01-28 23:31:47,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2307f7b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 11:31:47, skipping insertion in model container [2018-01-28 23:31:47,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 11:29:33" (3/4) ... [2018-01-28 23:31:47,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2307f7b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 11:31:47, skipping insertion in model container [2018-01-28 23:31:47,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 28.01 11:31:47" (4/4) ... [2018-01-28 23:31:47,079 INFO L107 eAbstractionObserver]: Analyzing ICFG HeapSeparatedIcfg [2018-01-28 23:31:47,085 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-28 23:31:47,091 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-01-28 23:31:47,120 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-28 23:31:47,120 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-28 23:31:47,120 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-28 23:31:47,120 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-28 23:31:47,120 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-28 23:31:47,120 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-28 23:31:47,120 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-28 23:31:47,120 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-28 23:31:47,121 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-28 23:31:47,133 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2018-01-28 23:31:47,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-28 23:31:47,140 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 23:31:47,141 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 23:31:47,141 INFO L371 AbstractCegarLoop]: === Iteration 1 === [cstrcatErr0RequiresViolation, cstrcatErr2RequiresViolation, cstrcatErr1RequiresViolation, cstrcatErr5RequiresViolation, cstrcatErr3RequiresViolation, cstrcatErr4RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-28 23:31:47,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1989739996, now seen corresponding path program 1 times [2018-01-28 23:31:47,148 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 23:31:47,149 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 23:31:47,189 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 23:31:47,189 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 23:31:47,189 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 23:31:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 23:31:47,245 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 23:31:47,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 23:31:47,297 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 23:31:47,298 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-28 23:31:47,299 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-28 23:31:47,306 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-28 23:31:47,306 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-28 23:31:47,308 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 3 states. [2018-01-28 23:31:47,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 23:31:47,401 INFO L93 Difference]: Finished difference Result 112 states and 124 transitions. [2018-01-28 23:31:47,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-28 23:31:47,403 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-01-28 23:31:47,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 23:31:47,415 INFO L225 Difference]: With dead ends: 112 [2018-01-28 23:31:47,415 INFO L226 Difference]: Without dead ends: 75 [2018-01-28 23:31:47,419 INFO L533 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 [2018-01-28 23:31:47,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-01-28 23:31:47,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-01-28 23:31:47,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-01-28 23:31:47,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 81 transitions. [2018-01-28 23:31:47,458 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 81 transitions. Word has length 17 [2018-01-28 23:31:47,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 23:31:47,458 INFO L432 AbstractCegarLoop]: Abstraction has 75 states and 81 transitions. [2018-01-28 23:31:47,458 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-28 23:31:47,458 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 81 transitions. [2018-01-28 23:31:47,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-28 23:31:47,459 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 23:31:47,460 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 23:31:47,460 INFO L371 AbstractCegarLoop]: === Iteration 2 === [cstrcatErr0RequiresViolation, cstrcatErr2RequiresViolation, cstrcatErr1RequiresViolation, cstrcatErr5RequiresViolation, cstrcatErr3RequiresViolation, cstrcatErr4RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-28 23:31:47,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1440983707, now seen corresponding path program 1 times [2018-01-28 23:31:47,460 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 23:31:47,460 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 23:31:47,461 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 23:31:47,461 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 23:31:47,462 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 23:31:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 23:31:47,483 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 23:31:47,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 23:31:47,537 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 23:31:47,538 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-28 23:31:47,539 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-28 23:31:47,539 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-28 23:31:47,540 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-28 23:31:47,540 INFO L87 Difference]: Start difference. First operand 75 states and 81 transitions. Second operand 4 states. [2018-01-28 23:31:47,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 23:31:47,606 INFO L93 Difference]: Finished difference Result 75 states and 81 transitions. [2018-01-28 23:31:47,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-28 23:31:47,607 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-01-28 23:31:47,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 23:31:47,608 INFO L225 Difference]: With dead ends: 75 [2018-01-28 23:31:47,609 INFO L226 Difference]: Without dead ends: 74 [2018-01-28 23:31:47,609 INFO L533 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 [2018-01-28 23:31:47,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-01-28 23:31:47,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-01-28 23:31:47,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-01-28 23:31:47,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 80 transitions. [2018-01-28 23:31:47,617 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 80 transitions. Word has length 20 [2018-01-28 23:31:47,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 23:31:47,618 INFO L432 AbstractCegarLoop]: Abstraction has 74 states and 80 transitions. [2018-01-28 23:31:47,618 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-28 23:31:47,618 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 80 transitions. [2018-01-28 23:31:47,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-28 23:31:47,619 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 23:31:47,619 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 23:31:47,619 INFO L371 AbstractCegarLoop]: === Iteration 3 === [cstrcatErr0RequiresViolation, cstrcatErr2RequiresViolation, cstrcatErr1RequiresViolation, cstrcatErr5RequiresViolation, cstrcatErr3RequiresViolation, cstrcatErr4RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-28 23:31:47,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1440983705, now seen corresponding path program 1 times [2018-01-28 23:31:47,619 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 23:31:47,619 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 23:31:47,620 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 23:31:47,621 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 23:31:47,621 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 23:31:47,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 23:31:47,636 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 23:31:47,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 23:31:47,743 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 23:31:47,743 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-28 23:31:47,743 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-28 23:31:47,743 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-28 23:31:47,743 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-01-28 23:31:47,743 INFO L87 Difference]: Start difference. First operand 74 states and 80 transitions. Second operand 6 states. [2018-01-28 23:31:47,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 23:31:47,824 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2018-01-28 23:31:47,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-28 23:31:47,825 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-01-28 23:31:47,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 23:31:47,826 INFO L225 Difference]: With dead ends: 74 [2018-01-28 23:31:47,826 INFO L226 Difference]: Without dead ends: 73 [2018-01-28 23:31:47,827 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-01-28 23:31:47,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-01-28 23:31:47,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-01-28 23:31:47,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-01-28 23:31:47,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 79 transitions. [2018-01-28 23:31:47,833 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 79 transitions. Word has length 20 [2018-01-28 23:31:47,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 23:31:47,833 INFO L432 AbstractCegarLoop]: Abstraction has 73 states and 79 transitions. [2018-01-28 23:31:47,833 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-28 23:31:47,833 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 79 transitions. [2018-01-28 23:31:47,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-28 23:31:47,834 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 23:31:47,834 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 23:31:47,834 INFO L371 AbstractCegarLoop]: === Iteration 4 === [cstrcatErr0RequiresViolation, cstrcatErr2RequiresViolation, cstrcatErr1RequiresViolation, cstrcatErr5RequiresViolation, cstrcatErr3RequiresViolation, cstrcatErr4RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-28 23:31:47,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1720821584, now seen corresponding path program 1 times [2018-01-28 23:31:47,834 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 23:31:47,834 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 23:31:47,835 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 23:31:47,835 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 23:31:47,835 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 23:31:47,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 23:31:47,843 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 23:31:47,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 23:31:47,890 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 23:31:47,890 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-28 23:31:47,890 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-28 23:31:47,890 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-28 23:31:47,891 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-28 23:31:47,891 INFO L87 Difference]: Start difference. First operand 73 states and 79 transitions. Second operand 4 states. [2018-01-28 23:31:47,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 23:31:47,927 INFO L93 Difference]: Finished difference Result 73 states and 79 transitions. [2018-01-28 23:31:47,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-28 23:31:47,927 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-01-28 23:31:47,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 23:31:47,928 INFO L225 Difference]: With dead ends: 73 [2018-01-28 23:31:47,928 INFO L226 Difference]: Without dead ends: 72 [2018-01-28 23:31:47,928 INFO L533 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 [2018-01-28 23:31:47,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-01-28 23:31:47,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-01-28 23:31:47,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-01-28 23:31:47,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 78 transitions. [2018-01-28 23:31:47,934 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 78 transitions. Word has length 21 [2018-01-28 23:31:47,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 23:31:47,934 INFO L432 AbstractCegarLoop]: Abstraction has 72 states and 78 transitions. [2018-01-28 23:31:47,935 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-28 23:31:47,935 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 78 transitions. [2018-01-28 23:31:47,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-28 23:31:47,936 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 23:31:47,936 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 23:31:47,936 INFO L371 AbstractCegarLoop]: === Iteration 5 === [cstrcatErr0RequiresViolation, cstrcatErr2RequiresViolation, cstrcatErr1RequiresViolation, cstrcatErr5RequiresViolation, cstrcatErr3RequiresViolation, cstrcatErr4RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-28 23:31:47,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1720821582, now seen corresponding path program 1 times [2018-01-28 23:31:47,936 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 23:31:47,936 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 23:31:47,937 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 23:31:47,938 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 23:31:47,938 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 23:31:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 23:31:47,950 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 23:31:48,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 23:31:48,033 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 23:31:48,033 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-28 23:31:48,033 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-28 23:31:48,033 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-28 23:31:48,034 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-01-28 23:31:48,034 INFO L87 Difference]: Start difference. First operand 72 states and 78 transitions. Second operand 6 states. [2018-01-28 23:31:48,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 23:31:48,109 INFO L93 Difference]: Finished difference Result 72 states and 78 transitions. [2018-01-28 23:31:48,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-28 23:31:48,109 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-01-28 23:31:48,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 23:31:48,110 INFO L225 Difference]: With dead ends: 72 [2018-01-28 23:31:48,110 INFO L226 Difference]: Without dead ends: 71 [2018-01-28 23:31:48,111 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-01-28 23:31:48,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-01-28 23:31:48,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-01-28 23:31:48,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-01-28 23:31:48,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 77 transitions. [2018-01-28 23:31:48,115 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 77 transitions. Word has length 21 [2018-01-28 23:31:48,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 23:31:48,115 INFO L432 AbstractCegarLoop]: Abstraction has 71 states and 77 transitions. [2018-01-28 23:31:48,115 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-28 23:31:48,115 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 77 transitions. [2018-01-28 23:31:48,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-28 23:31:48,116 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 23:31:48,116 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 23:31:48,116 INFO L371 AbstractCegarLoop]: === Iteration 6 === [cstrcatErr0RequiresViolation, cstrcatErr2RequiresViolation, cstrcatErr1RequiresViolation, cstrcatErr5RequiresViolation, cstrcatErr3RequiresViolation, cstrcatErr4RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-28 23:31:48,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1906547614, now seen corresponding path program 1 times [2018-01-28 23:31:48,116 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 23:31:48,116 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 23:31:48,117 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 23:31:48,117 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 23:31:48,117 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 23:31:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 23:31:48,127 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 23:31:48,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 23:31:48,171 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 23:31:48,171 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-28 23:31:48,171 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-28 23:31:48,171 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-28 23:31:48,171 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-28 23:31:48,172 INFO L87 Difference]: Start difference. First operand 71 states and 77 transitions. Second operand 5 states. [2018-01-28 23:31:48,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 23:31:48,235 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2018-01-28 23:31:48,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-28 23:31:48,236 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-01-28 23:31:48,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 23:31:48,236 INFO L225 Difference]: With dead ends: 74 [2018-01-28 23:31:48,237 INFO L226 Difference]: Without dead ends: 73 [2018-01-28 23:31:48,237 INFO L533 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 [2018-01-28 23:31:48,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-01-28 23:31:48,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 70. [2018-01-28 23:31:48,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-01-28 23:31:48,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 76 transitions. [2018-01-28 23:31:48,245 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 76 transitions. Word has length 27 [2018-01-28 23:31:48,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 23:31:48,245 INFO L432 AbstractCegarLoop]: Abstraction has 70 states and 76 transitions. [2018-01-28 23:31:48,246 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-28 23:31:48,246 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 76 transitions. [2018-01-28 23:31:48,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-28 23:31:48,247 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 23:31:48,247 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 23:31:48,247 INFO L371 AbstractCegarLoop]: === Iteration 7 === [cstrcatErr0RequiresViolation, cstrcatErr2RequiresViolation, cstrcatErr1RequiresViolation, cstrcatErr5RequiresViolation, cstrcatErr3RequiresViolation, cstrcatErr4RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-28 23:31:48,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1906547616, now seen corresponding path program 1 times [2018-01-28 23:31:48,247 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 23:31:48,247 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 23:31:48,248 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 23:31:48,248 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 23:31:48,248 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 23:31:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 23:31:48,260 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 23:31:48,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 23:31:48,356 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 23:31:48,356 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-28 23:31:48,356 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-28 23:31:48,356 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-28 23:31:48,356 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-28 23:31:48,356 INFO L87 Difference]: Start difference. First operand 70 states and 76 transitions. Second operand 7 states. [2018-01-28 23:31:48,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 23:31:48,468 INFO L93 Difference]: Finished difference Result 81 states and 88 transitions. [2018-01-28 23:31:48,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-28 23:31:48,469 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-01-28 23:31:48,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 23:31:48,470 INFO L225 Difference]: With dead ends: 81 [2018-01-28 23:31:48,470 INFO L226 Difference]: Without dead ends: 80 [2018-01-28 23:31:48,470 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-01-28 23:31:48,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-01-28 23:31:48,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 72. [2018-01-28 23:31:48,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-01-28 23:31:48,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 78 transitions. [2018-01-28 23:31:48,477 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 78 transitions. Word has length 27 [2018-01-28 23:31:48,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 23:31:48,478 INFO L432 AbstractCegarLoop]: Abstraction has 72 states and 78 transitions. [2018-01-28 23:31:48,478 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-28 23:31:48,478 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 78 transitions. [2018-01-28 23:31:48,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-28 23:31:48,479 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 23:31:48,479 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 23:31:48,479 INFO L371 AbstractCegarLoop]: === Iteration 8 === [cstrcatErr0RequiresViolation, cstrcatErr2RequiresViolation, cstrcatErr1RequiresViolation, cstrcatErr5RequiresViolation, cstrcatErr3RequiresViolation, cstrcatErr4RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-28 23:31:48,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1511374534, now seen corresponding path program 1 times [2018-01-28 23:31:48,479 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 23:31:48,479 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 23:31:48,480 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 23:31:48,480 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 23:31:48,481 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 23:31:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 23:31:48,492 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 23:31:48,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 23:31:48,593 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 23:31:48,593 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-28 23:31:48,594 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-28 23:31:48,594 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-28 23:31:48,594 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-28 23:31:48,594 INFO L87 Difference]: Start difference. First operand 72 states and 78 transitions. Second operand 6 states. [2018-01-28 23:31:48,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 23:31:48,720 INFO L93 Difference]: Finished difference Result 72 states and 78 transitions. [2018-01-28 23:31:48,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-28 23:31:48,720 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2018-01-28 23:31:48,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 23:31:48,721 INFO L225 Difference]: With dead ends: 72 [2018-01-28 23:31:48,721 INFO L226 Difference]: Without dead ends: 58 [2018-01-28 23:31:48,721 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-01-28 23:31:48,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-01-28 23:31:48,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-01-28 23:31:48,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-01-28 23:31:48,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2018-01-28 23:31:48,725 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 29 [2018-01-28 23:31:48,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 23:31:48,725 INFO L432 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2018-01-28 23:31:48,725 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-28 23:31:48,725 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2018-01-28 23:31:48,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-01-28 23:31:48,726 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 23:31:48,726 INFO L330 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, 1] [2018-01-28 23:31:48,726 INFO L371 AbstractCegarLoop]: === Iteration 9 === [cstrcatErr0RequiresViolation, cstrcatErr2RequiresViolation, cstrcatErr1RequiresViolation, cstrcatErr5RequiresViolation, cstrcatErr3RequiresViolation, cstrcatErr4RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-28 23:31:48,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1930834763, now seen corresponding path program 1 times [2018-01-28 23:31:48,727 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 23:31:48,727 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 23:31:48,727 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 23:31:48,727 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 23:31:48,727 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 23:31:48,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 23:31:48,739 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 23:31:48,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 23:31:48,844 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-28 23:31:48,844 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 [2018-01-28 23:31:48,853 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Received shutdown request... [2018-01-28 23:31:48,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 23:31:48,887 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-28 23:31:48,894 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-01-28 23:31:48,895 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-28 23:31:48,899 WARN L185 ceAbstractionStarter]: Timeout [2018-01-28 23:31:48,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 11:31:48 BasicIcfg [2018-01-28 23:31:48,899 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-28 23:31:48,900 INFO L168 Benchmark]: Toolchain (without parser) took 136254.84 ms. Allocated memory was 303.6 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 263.4 MB in the beginning and 1.7 GB in the end (delta: -1.4 GB). Peak memory consumption was 434.2 MB. Max. memory is 5.3 GB. [2018-01-28 23:31:48,901 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 303.6 MB. Free memory is still 269.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-28 23:31:48,901 INFO L168 Benchmark]: CACSL2BoogieTranslator took 202.93 ms. Allocated memory is still 303.6 MB. Free memory was 262.4 MB in the beginning and 252.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-28 23:31:48,902 INFO L168 Benchmark]: Boogie Preprocessor took 40.96 ms. Allocated memory is still 303.6 MB. Free memory was 252.4 MB in the beginning and 250.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-28 23:31:48,902 INFO L168 Benchmark]: RCFGBuilder took 328.66 ms. Allocated memory is still 303.6 MB. Free memory was 250.5 MB in the beginning and 229.3 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 5.3 GB. [2018-01-28 23:31:48,902 INFO L168 Benchmark]: IcfgTransformer took 133846.97 ms. Allocated memory was 303.6 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 229.3 MB in the beginning and 2.1 GB in the end (delta: -1.9 GB). Peak memory consumption was 1.8 GB. Max. memory is 5.3 GB. [2018-01-28 23:31:48,903 INFO L168 Benchmark]: TraceAbstraction took 1825.19 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 384.7 MB). Peak memory consumption was 384.7 MB. Max. memory is 5.3 GB. [2018-01-28 23:31:48,905 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 303.6 MB. Free memory is still 269.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 202.93 ms. Allocated memory is still 303.6 MB. Free memory was 262.4 MB in the beginning and 252.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 40.96 ms. Allocated memory is still 303.6 MB. Free memory was 252.4 MB in the beginning and 250.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 328.66 ms. Allocated memory is still 303.6 MB. Free memory was 250.5 MB in the beginning and 229.3 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 5.3 GB. * IcfgTransformer took 133846.97 ms. Allocated memory was 303.6 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 229.3 MB in the beginning and 2.1 GB in the end (delta: -1.9 GB). Peak memory consumption was 1.8 GB. Max. memory is 5.3 GB. * TraceAbstraction took 1825.19 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 384.7 MB). Peak memory consumption was 384.7 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 73 LocStat_MAX_WEQGRAPH_SIZE : 5 LocStat_MAX_SIZEOF_WEQEDGELABEL : 5 LocStat_NO_SUPPORTING_EQUALITIES : 1201 LocStat_NO_SUPPORTING_DISEQUALITIES : 449 LocStat_NO_DISJUNCTIONS : -146 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 98 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 120 TransStat_NO_SUPPORTING_DISEQUALITIES : 12 TransStat_NO_DISJUNCTIONS : 101 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 23.309739 RENAME_VARIABLES(MILLISECONDS) : 0.012049 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 22.631090 PROJECTAWAY(MILLISECONDS) : 69.387367 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.047316 DISJOIN(MILLISECONDS) : 0.087189 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.020540 ADD_EQUALITY(MILLISECONDS) : 0.008107 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.012013 #CONJOIN_DISJUNCTIVE : 2128 #RENAME_VARIABLES : 4693 #UNFREEZE : 0 #CONJOIN : 2810 #PROJECTAWAY : 2619 #ADD_WEAK_EQUALITY : 13 #DISJOIN : 799 #RENAME_VARIABLES_DISJUNCTIVE : 4600 #ADD_EQUALITY : 123 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 10 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: HeapSeparatorStatistics COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_0 : 1 COUNT_BLOCKS_for_[#memory_int]_at_dim_0 : 1 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_1 : 1 COUNT_BLOCKS_for_[#memory_int]_at_dim_1 : 1 COUNT_ARRAY_READS for [#memory_int] : 5 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 544). Cancelled while BasicCegarLoop was analyzing trace of length 35 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 1 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 545). Cancelled while BasicCegarLoop was analyzing trace of length 35 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 1 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 544). Cancelled while BasicCegarLoop was analyzing trace of length 35 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 1 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 545). Cancelled while BasicCegarLoop was analyzing trace of length 35 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 1 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 545). Cancelled while BasicCegarLoop was analyzing trace of length 35 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 1 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 545). Cancelled while BasicCegarLoop was analyzing trace of length 35 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 1 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 565). Cancelled while BasicCegarLoop was analyzing trace of length 35 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 1 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 564). Cancelled while BasicCegarLoop was analyzing trace of length 35 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 1 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 565). Cancelled while BasicCegarLoop was analyzing trace of length 35 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 1 xjuncts. - TimeoutResultAtElement [Line: 548]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 548). Cancelled while BasicCegarLoop was analyzing trace of length 35 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 1 xjuncts. - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 564). Cancelled while BasicCegarLoop was analyzing trace of length 35 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 1 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 79 locations, 11 error locations. TIMEOUT Result, 1.7s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 546 SDtfs, 331 SDslu, 798 SDs, 0 SdLazy, 450 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 182 NumberOfCodeBlocks, 182 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 14424 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-Benchmark-0-2018-01-28_23-31-48-917.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-VPDomainBenchmark-0-2018-01-28_23-31-48-917.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-BenchmarkWithCounters-0-2018-01-28_23-31-48-917.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-HeapSeparatorBenchmark-0-2018-01-28_23-31-48-917.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcat-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-28_23-31-48-917.csv Completed graceful shutdown