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/cstrcpy-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-5f7ec6e [2018-01-31 09:21:00,310 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-31 09:21:00,312 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-31 09:21:00,329 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-31 09:21:00,329 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-31 09:21:00,330 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-31 09:21:00,331 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-31 09:21:00,335 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-31 09:21:00,337 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-31 09:21:00,338 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-31 09:21:00,345 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-31 09:21:00,346 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-31 09:21:00,347 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-31 09:21:00,348 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-31 09:21:00,349 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-31 09:21:00,353 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-31 09:21:00,358 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-31 09:21:00,360 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-31 09:21:00,363 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-31 09:21:00,364 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-31 09:21:00,371 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-31 09:21:00,371 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-31 09:21:00,372 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-31 09:21:00,373 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-31 09:21:00,378 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-31 09:21:00,379 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-31 09:21:00,380 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-31 09:21:00,380 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-31 09:21:00,380 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-31 09:21:00,381 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-31 09:21:00,381 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-31 09:21:00,382 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 09:21:00,398 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-31 09:21:00,398 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-31 09:21:00,399 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-31 09:21:00,399 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-31 09:21:00,399 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-31 09:21:00,399 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-31 09:21:00,400 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-31 09:21:00,400 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-31 09:21:00,400 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-31 09:21:00,400 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-31 09:21:00,401 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-31 09:21:00,401 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-31 09:21:00,401 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-31 09:21:00,401 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-31 09:21:00,401 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-31 09:21:00,401 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-31 09:21:00,402 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-31 09:21:00,402 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-31 09:21:00,404 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-31 09:21:00,404 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-31 09:21:00,404 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-31 09:21:00,405 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-31 09:21:00,405 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-31 09:21:00,405 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-31 09:21:00,405 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-31 09:21:00,405 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-31 09:21:00,405 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-31 09:21:00,406 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-31 09:21:00,406 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-31 09:21:00,406 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-31 09:21:00,406 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-31 09:21:00,406 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-31 09:21:00,407 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-31 09:21:00,407 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-31 09:21:00,465 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-31 09:21:00,480 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-31 09:21:00,486 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-31 09:21:00,488 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-31 09:21:00,488 INFO L276 PluginConnector]: CDTParser initialized [2018-01-31 09:21:00,489 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-01-31 09:21:00,742 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-31 09:21:00,751 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-01-31 09:21:00,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-31 09:21:00,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-31 09:21:00,791 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-31 09:21:00,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 09:21:00" (1/1) ... [2018-01-31 09:21:00,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41bc5f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:21:00, skipping insertion in model container [2018-01-31 09:21:00,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 09:21:00" (1/1) ... [2018-01-31 09:21:00,816 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-31 09:21:00,874 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-31 09:21:01,044 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-31 09:21:01,065 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-31 09:21:01,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:21:01 WrapperNode [2018-01-31 09:21:01,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-31 09:21:01,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-31 09:21:01,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-31 09:21:01,073 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-31 09:21:01,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:21:01" (1/1) ... [2018-01-31 09:21:01,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:21:01" (1/1) ... [2018-01-31 09:21:01,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:21:01" (1/1) ... [2018-01-31 09:21:01,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:21:01" (1/1) ... [2018-01-31 09:21:01,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:21:01" (1/1) ... [2018-01-31 09:21:01,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:21:01" (1/1) ... [2018-01-31 09:21:01,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:21:01" (1/1) ... [2018-01-31 09:21:01,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-31 09:21:01,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-31 09:21:01,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-31 09:21:01,124 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-31 09:21:01,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:21:01" (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 09:21:01,185 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-31 09:21:01,185 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-31 09:21:01,185 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrcpy [2018-01-31 09:21:01,185 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-31 09:21:01,185 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-31 09:21:01,186 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-31 09:21:01,186 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-31 09:21:01,186 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-31 09:21:01,186 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-31 09:21:01,186 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-31 09:21:01,186 INFO L128 BoogieDeclarations]: Found specification of procedure cstrcpy [2018-01-31 09:21:01,186 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-31 09:21:01,187 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-31 09:21:01,187 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-31 09:21:01,651 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-31 09:21:01,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:21:01 BoogieIcfgContainer [2018-01-31 09:21:01,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-31 09:21:01,653 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-01-31 09:21:01,653 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-01-31 09:21:01,654 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-01-31 09:21:01,657 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:21:01" (1/1) ... [2018-01-31 09:21:01,664 INFO L103 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-01-31 09:21:01,664 INFO L104 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-01-31 09:21:01,665 INFO L150 apSepIcfgTransformer]: starting freeze-var-style preprocessing [2018-01-31 09:21:01,704 INFO L162 apSepIcfgTransformer]: finished StoreIndexFreezer, created 9 freeze vars and freeze var literals (each corresponds to one heap write) [2018-01-31 09:21:01,733 INFO L221 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-01-31 09:21:01,809 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-31 09:21:49,042 INFO L314 AbstractInterpreter]: Visited 69 different actions 358 times. Merged at 40 different actions 188 times. Never widened. Found 11 fixpoints after 3 different actions. Largest state had 56 variables. [2018-01-31 09:21:49,044 INFO L229 apSepIcfgTransformer]: finished equality analysis [2018-01-31 09:21:49,062 INFO L244 HeapSepPreAnalysis]: Number of read from array group [#memory_int] : 3 [2018-01-31 09:21:49,063 INFO L241 apSepIcfgTransformer]: Finished pre analysis before partitioning [2018-01-31 09:21:49,063 INFO L242 apSepIcfgTransformer]: array groups: Set: [#memory_int] [2018-01-31 09:21:49,064 INFO L244 apSepIcfgTransformer]: select infos: Set: ((select |v_#memory_int_3| |v_cstrcpy_#t~post0.base_3|), at (SUMMARY for call write~int(#t~mem3, #t~post0.base, #t~post0.offset, 1); srcloc: L544''''')) ((select |v_#memory_int_7| v_main_~nondetString~3.base_2), at (SUMMARY for call write~int(0, ~nondetString~3.base, ~nondetString~3.offset + (~length2~3 - 1) * 1, 1); srcloc: L560)) ((select (select |v_#memory_int_1| |v_cstrcpy_#t~post1.base_3|) |v_cstrcpy_#t~post1.offset_3|), at (SUMMARY for call #t~mem3 := read~int(#t~post1.base, #t~post1.offset, 1); srcloc: L544'''')) [2018-01-31 09:21:49,118 INFO L547 PartitionManager]: partitioning result: [2018-01-31 09:21:49,118 INFO L552 PartitionManager]: location blocks for array group [#memory_int] [2018-01-31 09:21:49,118 INFO L562 PartitionManager]: at dimension 0 [2018-01-31 09:21:49,118 INFO L563 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 3 [2018-01-31 09:21:49,118 INFO L564 PartitionManager]: # location blocks :3 [2018-01-31 09:21:49,118 INFO L562 PartitionManager]: at dimension 1 [2018-01-31 09:21:49,119 INFO L563 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-01-31 09:21:49,119 INFO L564 PartitionManager]: # location blocks :1 [2018-01-31 09:21:49,120 INFO L86 ransitionTransformer]: executing heap partitioning transformation [2018-01-31 09:21:49,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 09:21:49 BasicIcfg [2018-01-31 09:21:49,139 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-01-31 09:21:49,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-31 09:21:49,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-31 09:21:49,143 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-31 09:21:49,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 09:21:00" (1/4) ... [2018-01-31 09:21:49,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764ad5b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 09:21:49, skipping insertion in model container [2018-01-31 09:21:49,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:21:01" (2/4) ... [2018-01-31 09:21:49,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764ad5b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 09:21:49, skipping insertion in model container [2018-01-31 09:21:49,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:21:01" (3/4) ... [2018-01-31 09:21:49,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764ad5b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 09:21:49, skipping insertion in model container [2018-01-31 09:21:49,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 09:21:49" (4/4) ... [2018-01-31 09:21:49,147 INFO L107 eAbstractionObserver]: Analyzing ICFG HeapSeparatedIcfg [2018-01-31 09:21:49,227 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-31 09:21:49,235 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-01-31 09:21:49,269 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-31 09:21:49,269 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-31 09:21:49,269 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-31 09:21:49,269 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-31 09:21:49,269 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-31 09:21:49,269 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-31 09:21:49,269 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-31 09:21:49,269 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-31 09:21:49,270 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-31 09:21:49,281 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2018-01-31 09:21:49,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-31 09:21:49,286 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:21:49,287 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:21:49,287 INFO L371 AbstractCegarLoop]: === Iteration 1 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:21:49,290 INFO L82 PathProgramCache]: Analyzing trace with hash -975213106, now seen corresponding path program 1 times [2018-01-31 09:21:49,291 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:21:49,292 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:21:49,342 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:21:49,342 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:21:49,342 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:21:49,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:21:49,393 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:21:49,471 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 09:21:49,473 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:21:49,473 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-31 09:21:49,474 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-31 09:21:49,481 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-31 09:21:49,481 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-31 09:21:49,484 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 3 states. [2018-01-31 09:21:49,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:21:49,687 INFO L93 Difference]: Finished difference Result 77 states and 84 transitions. [2018-01-31 09:21:49,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-31 09:21:49,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-01-31 09:21:49,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:21:49,704 INFO L225 Difference]: With dead ends: 77 [2018-01-31 09:21:49,705 INFO L226 Difference]: Without dead ends: 58 [2018-01-31 09:21:49,710 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 09:21:49,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-01-31 09:21:49,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-01-31 09:21:49,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-01-31 09:21:49,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2018-01-31 09:21:49,757 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 13 [2018-01-31 09:21:49,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:21:49,757 INFO L432 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2018-01-31 09:21:49,757 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-31 09:21:49,757 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2018-01-31 09:21:49,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-31 09:21:49,758 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:21:49,758 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:21:49,758 INFO L371 AbstractCegarLoop]: === Iteration 2 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:21:49,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1355357025, now seen corresponding path program 1 times [2018-01-31 09:21:49,759 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:21:49,760 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:21:49,761 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:21:49,761 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:21:49,762 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:21:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:21:49,791 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:21:49,906 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 09:21:49,907 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:21:49,907 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-31 09:21:49,908 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-31 09:21:49,908 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-31 09:21:49,909 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-31 09:21:49,909 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand 4 states. [2018-01-31 09:21:50,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:21:50,013 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2018-01-31 09:21:50,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-31 09:21:50,014 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-31 09:21:50,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:21:50,015 INFO L225 Difference]: With dead ends: 58 [2018-01-31 09:21:50,015 INFO L226 Difference]: Without dead ends: 57 [2018-01-31 09:21:50,016 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 09:21:50,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-01-31 09:21:50,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-01-31 09:21:50,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-01-31 09:21:50,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2018-01-31 09:21:50,027 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 16 [2018-01-31 09:21:50,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:21:50,027 INFO L432 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2018-01-31 09:21:50,027 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-31 09:21:50,027 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2018-01-31 09:21:50,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-31 09:21:50,028 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:21:50,030 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:21:50,030 INFO L371 AbstractCegarLoop]: === Iteration 3 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:21:50,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1355357023, now seen corresponding path program 1 times [2018-01-31 09:21:50,030 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:21:50,030 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:21:50,031 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:21:50,032 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:21:50,032 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:21:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:21:50,072 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:21:50,222 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 09:21:50,222 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:21:50,222 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-31 09:21:50,222 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-31 09:21:50,223 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-31 09:21:50,223 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-31 09:21:50,223 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand 5 states. [2018-01-31 09:21:50,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:21:50,359 INFO L93 Difference]: Finished difference Result 57 states and 61 transitions. [2018-01-31 09:21:50,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-31 09:21:50,360 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-01-31 09:21:50,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:21:50,361 INFO L225 Difference]: With dead ends: 57 [2018-01-31 09:21:50,361 INFO L226 Difference]: Without dead ends: 56 [2018-01-31 09:21:50,362 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-01-31 09:21:50,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-01-31 09:21:50,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-01-31 09:21:50,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-01-31 09:21:50,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2018-01-31 09:21:50,372 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 16 [2018-01-31 09:21:50,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:21:50,372 INFO L432 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2018-01-31 09:21:50,372 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-31 09:21:50,372 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2018-01-31 09:21:50,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-31 09:21:50,373 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:21:50,373 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 09:21:50,373 INFO L371 AbstractCegarLoop]: === Iteration 4 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:21:50,374 INFO L82 PathProgramCache]: Analyzing trace with hash 182653505, now seen corresponding path program 1 times [2018-01-31 09:21:50,374 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:21:50,374 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:21:50,375 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:21:50,379 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:21:50,379 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:21:50,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:21:50,410 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:21:50,838 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 09:21:50,838 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:21:50,839 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-31 09:21:50,839 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-31 09:21:50,839 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-31 09:21:50,839 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-31 09:21:50,839 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 6 states. [2018-01-31 09:21:51,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:21:51,293 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2018-01-31 09:21:51,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-31 09:21:51,294 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-01-31 09:21:51,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:21:51,295 INFO L225 Difference]: With dead ends: 56 [2018-01-31 09:21:51,295 INFO L226 Difference]: Without dead ends: 42 [2018-01-31 09:21:51,296 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-01-31 09:21:51,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-01-31 09:21:51,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-01-31 09:21:51,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-01-31 09:21:51,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2018-01-31 09:21:51,301 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 24 [2018-01-31 09:21:51,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:21:51,302 INFO L432 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2018-01-31 09:21:51,302 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-31 09:21:51,302 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2018-01-31 09:21:51,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-31 09:21:51,302 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:21:51,303 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:21:51,303 INFO L371 AbstractCegarLoop]: === Iteration 5 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:21:51,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1721610258, now seen corresponding path program 1 times [2018-01-31 09:21:51,303 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:21:51,303 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:21:51,304 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:21:51,304 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:21:51,304 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:21:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:21:51,329 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:21:51,469 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 09:21:51,470 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:21:51,470 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-31 09:21:51,470 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-31 09:21:51,470 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-31 09:21:51,471 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-01-31 09:21:51,471 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 10 states. [2018-01-31 09:21:51,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:21:51,713 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2018-01-31 09:21:51,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-31 09:21:51,714 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2018-01-31 09:21:51,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:21:51,717 INFO L225 Difference]: With dead ends: 56 [2018-01-31 09:21:51,717 INFO L226 Difference]: Without dead ends: 55 [2018-01-31 09:21:51,717 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-01-31 09:21:51,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-01-31 09:21:51,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 48. [2018-01-31 09:21:51,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-01-31 09:21:51,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2018-01-31 09:21:51,723 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 27 [2018-01-31 09:21:51,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:21:51,724 INFO L432 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2018-01-31 09:21:51,724 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-31 09:21:51,724 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2018-01-31 09:21:51,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-31 09:21:51,725 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:21:51,725 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:21:51,725 INFO L371 AbstractCegarLoop]: === Iteration 6 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:21:51,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1721610256, now seen corresponding path program 1 times [2018-01-31 09:21:51,725 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:21:51,725 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:21:51,726 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:21:51,726 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:21:51,727 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:21:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:21:51,738 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:21:51,828 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 09:21:51,828 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:21:51,828 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-31 09:21:51,828 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-31 09:21:51,829 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-31 09:21:51,829 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-31 09:21:51,829 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 7 states. [2018-01-31 09:21:51,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:21:51,983 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2018-01-31 09:21:51,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-31 09:21:51,983 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-01-31 09:21:51,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:21:51,984 INFO L225 Difference]: With dead ends: 48 [2018-01-31 09:21:51,984 INFO L226 Difference]: Without dead ends: 47 [2018-01-31 09:21:51,984 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-01-31 09:21:51,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-01-31 09:21:51,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-01-31 09:21:51,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-01-31 09:21:51,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2018-01-31 09:21:51,988 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 27 [2018-01-31 09:21:51,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:21:51,989 INFO L432 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2018-01-31 09:21:51,989 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-31 09:21:51,989 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2018-01-31 09:21:51,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-01-31 09:21:51,990 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:21:51,990 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:21:51,990 INFO L371 AbstractCegarLoop]: === Iteration 7 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:21:51,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1830310711, now seen corresponding path program 1 times [2018-01-31 09:21:51,991 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:21:51,991 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:21:51,991 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:21:51,992 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:21:51,992 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:21:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:21:52,004 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:21:52,219 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 09:21:52,220 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:21:52,306 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-01-31 09:21:52,307 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-01-31 09:21:52,307 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-01-31 09:21:52,307 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2018-01-31 09:21:52,307 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand 14 states. [2018-01-31 09:21:52,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:21:52,809 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2018-01-31 09:21:52,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-01-31 09:21:52,809 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 28 [2018-01-31 09:21:52,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:21:52,810 INFO L225 Difference]: With dead ends: 50 [2018-01-31 09:21:52,810 INFO L226 Difference]: Without dead ends: 49 [2018-01-31 09:21:52,811 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2018-01-31 09:21:52,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-01-31 09:21:52,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2018-01-31 09:21:52,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-01-31 09:21:52,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2018-01-31 09:21:52,817 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 28 [2018-01-31 09:21:52,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:21:52,818 INFO L432 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2018-01-31 09:21:52,818 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-01-31 09:21:52,818 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2018-01-31 09:21:52,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-01-31 09:21:52,819 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:21:52,819 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:21:52,819 INFO L371 AbstractCegarLoop]: === Iteration 8 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:21:52,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1830310713, now seen corresponding path program 1 times [2018-01-31 09:21:52,820 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:21:52,820 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:21:52,821 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:21:52,821 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:21:52,821 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:21:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:21:52,833 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:21:53,101 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 09:21:53,101 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:21:53,102 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-31 09:21:53,102 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-31 09:21:53,102 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-31 09:21:53,102 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-01-31 09:21:53,102 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 10 states. [2018-01-31 09:21:53,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:21:53,253 INFO L93 Difference]: Finished difference Result 51 states and 54 transitions. [2018-01-31 09:21:53,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-31 09:21:53,254 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 28 [2018-01-31 09:21:53,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:21:53,254 INFO L225 Difference]: With dead ends: 51 [2018-01-31 09:21:53,255 INFO L226 Difference]: Without dead ends: 50 [2018-01-31 09:21:53,255 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-01-31 09:21:53,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-01-31 09:21:53,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2018-01-31 09:21:53,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-01-31 09:21:53,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2018-01-31 09:21:53,261 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 28 [2018-01-31 09:21:53,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:21:53,261 INFO L432 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2018-01-31 09:21:53,261 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-31 09:21:53,261 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2018-01-31 09:21:53,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-01-31 09:21:53,262 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:21:53,263 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:21:53,263 INFO L371 AbstractCegarLoop]: === Iteration 9 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:21:53,263 INFO L82 PathProgramCache]: Analyzing trace with hash 240142637, now seen corresponding path program 1 times [2018-01-31 09:21:53,263 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:21:53,263 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:21:53,264 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:21:53,264 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:21:53,264 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:21:53,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:21:53,282 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:21:53,533 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:21:53,533 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-31 09:21:53,533 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 09:21:53,539 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:21:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:21:53,585 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-31 09:21:53,619 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 09:21:53,622 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 09:21:53,624 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 09:21:53,627 INFO L168 Benchmark]: Toolchain (without parser) took 52884.15 ms. Allocated memory was 305.1 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 263.9 MB in the beginning and 1.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 459.0 MB. Max. memory is 5.3 GB. [2018-01-31 09:21:53,631 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 305.1 MB. Free memory is still 269.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-31 09:21:53,632 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.84 ms. Allocated memory is still 305.1 MB. Free memory was 263.9 MB in the beginning and 253.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-31 09:21:53,632 INFO L168 Benchmark]: Boogie Preprocessor took 51.34 ms. Allocated memory is still 305.1 MB. Free memory was 253.8 MB in the beginning and 251.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-31 09:21:53,632 INFO L168 Benchmark]: RCFGBuilder took 528.13 ms. Allocated memory is still 305.1 MB. Free memory was 251.8 MB in the beginning and 232.8 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 5.3 GB. [2018-01-31 09:21:53,633 INFO L168 Benchmark]: IcfgTransformer took 47486.47 ms. Allocated memory was 305.1 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 232.8 MB in the beginning and 393.5 MB in the end (delta: -160.7 MB). Peak memory consumption was 1.7 GB. Max. memory is 5.3 GB. [2018-01-31 09:21:53,633 INFO L168 Benchmark]: TraceAbstraction took 4486.30 ms. Allocated memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: 100.7 MB). Free memory was 393.5 MB in the beginning and 1.8 GB in the end (delta: -1.4 GB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-31 09:21:53,635 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 305.1 MB. Free memory is still 269.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 288.84 ms. Allocated memory is still 305.1 MB. Free memory was 263.9 MB in the beginning and 253.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 51.34 ms. Allocated memory is still 305.1 MB. Free memory was 253.8 MB in the beginning and 251.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 528.13 ms. Allocated memory is still 305.1 MB. Free memory was 251.8 MB in the beginning and 232.8 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 5.3 GB. * IcfgTransformer took 47486.47 ms. Allocated memory was 305.1 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 232.8 MB in the beginning and 393.5 MB in the end (delta: -160.7 MB). Peak memory consumption was 1.7 GB. Max. memory is 5.3 GB. * TraceAbstraction took 4486.30 ms. Allocated memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: 100.7 MB). Free memory was 393.5 MB in the beginning and 1.8 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 : 57 LocStat_MAX_WEQGRAPH_SIZE : 4 LocStat_MAX_SIZEOF_WEQEDGELABEL : 3 LocStat_NO_SUPPORTING_EQUALITIES : 1746 LocStat_NO_SUPPORTING_DISEQUALITIES : 949 LocStat_NO_DISJUNCTIONS : -114 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 78 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 147 TransStat_NO_SUPPORTING_DISEQUALITIES : 9 TransStat_NO_DISJUNCTIONS : 80 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 36.315110 RENAME_VARIABLES(MILLISECONDS) : 1.642558 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 17.981245 PROJECTAWAY(MILLISECONDS) : 0.220526 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.043724 DISJOIN(MILLISECONDS) : 2.486322 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 1.673800 ADD_EQUALITY(MILLISECONDS) : 0.011751 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.007889 #CONJOIN_DISJUNCTIVE : 627 #RENAME_VARIABLES : 1344 #UNFREEZE : 0 #CONJOIN : 895 #PROJECTAWAY : 772 #ADD_WEAK_EQUALITY : 11 #DISJOIN : 198 #RENAME_VARIABLES_DISJUNCTIVE : 1318 #ADD_EQUALITY : 149 #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/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_09-21-53-648.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/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_09-21-53-648.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/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_09-21-53-648.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/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_09-21-53-648.csv Received shutdown request...