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_cstrlen-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cceb4a [2018-01-30 01:14:31,264 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-30 01:14:31,267 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-30 01:14:31,279 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-30 01:14:31,280 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-30 01:14:31,281 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-30 01:14:31,281 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-30 01:14:31,283 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-30 01:14:31,284 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-30 01:14:31,285 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-30 01:14:31,286 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-30 01:14:31,286 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-30 01:14:31,287 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-30 01:14:31,288 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-30 01:14:31,289 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-30 01:14:31,291 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-30 01:14:31,293 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-30 01:14:31,295 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-30 01:14:31,296 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-30 01:14:31,298 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-30 01:14:31,300 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-30 01:14:31,300 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-30 01:14:31,300 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-30 01:14:31,302 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-30 01:14:31,302 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-30 01:14:31,304 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-30 01:14:31,304 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-30 01:14:31,305 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-30 01:14:31,305 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-30 01:14:31,305 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-30 01:14:31,306 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-30 01:14:31,306 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-01-30 01:14:31,316 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-30 01:14:31,316 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-30 01:14:31,317 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-30 01:14:31,317 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-30 01:14:31,317 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-30 01:14:31,317 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-30 01:14:31,318 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-30 01:14:31,318 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-30 01:14:31,318 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-30 01:14:31,319 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-30 01:14:31,319 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-30 01:14:31,319 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-30 01:14:31,319 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-30 01:14:31,319 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-30 01:14:31,320 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-30 01:14:31,320 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-30 01:14:31,320 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-30 01:14:31,320 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-30 01:14:31,320 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-30 01:14:31,321 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-30 01:14:31,321 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-30 01:14:31,321 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-30 01:14:31,321 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-30 01:14:31,321 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-30 01:14:31,322 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-30 01:14:31,322 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-30 01:14:31,322 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-30 01:14:31,322 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-30 01:14:31,322 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-30 01:14:31,323 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-30 01:14:31,323 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-30 01:14:31,323 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-30 01:14:31,324 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-30 01:14:31,324 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-30 01:14:31,359 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-30 01:14:31,372 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-30 01:14:31,376 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-30 01:14:31,378 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-30 01:14:31,379 INFO L276 PluginConnector]: CDTParser initialized [2018-01-30 01:14:31,379 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-01-30 01:14:31,593 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-30 01:14:31,599 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-01-30 01:14:31,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-30 01:14:31,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-30 01:14:31,605 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-30 01:14:31,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 01:14:31" (1/1) ... [2018-01-30 01:14:31,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3909789b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:14:31, skipping insertion in model container [2018-01-30 01:14:31,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 01:14:31" (1/1) ... [2018-01-30 01:14:31,621 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 01:14:31,658 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 01:14:31,767 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 01:14:31,781 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 01:14:31,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:14:31 WrapperNode [2018-01-30 01:14:31,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-30 01:14:31,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-30 01:14:31,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-30 01:14:31,789 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-30 01:14:31,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:14:31" (1/1) ... [2018-01-30 01:14:31,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:14:31" (1/1) ... [2018-01-30 01:14:31,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:14:31" (1/1) ... [2018-01-30 01:14:31,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:14:31" (1/1) ... [2018-01-30 01:14:31,820 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:14:31" (1/1) ... [2018-01-30 01:14:31,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:14:31" (1/1) ... [2018-01-30 01:14:31,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:14:31" (1/1) ... [2018-01-30 01:14:31,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-30 01:14:31,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-30 01:14:31,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-30 01:14:31,826 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-30 01:14:31,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:14:31" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-30 01:14:31,871 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-30 01:14:31,871 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-30 01:14:31,871 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrlen [2018-01-30 01:14:31,871 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-30 01:14:31,871 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-30 01:14:31,871 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-30 01:14:31,871 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-30 01:14:31,872 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-30 01:14:31,872 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-30 01:14:31,872 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-30 01:14:31,872 INFO L128 BoogieDeclarations]: Found specification of procedure cstrlen [2018-01-30 01:14:31,872 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-30 01:14:31,872 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-30 01:14:31,872 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-30 01:14:32,047 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-30 01:14:32,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 01:14:32 BoogieIcfgContainer [2018-01-30 01:14:32,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-30 01:14:32,048 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-01-30 01:14:32,048 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-01-30 01:14:32,049 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-01-30 01:14:32,053 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 01:14:32" (1/1) ... [2018-01-30 01:14:32,062 INFO L103 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-01-30 01:14:32,063 INFO L104 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-01-30 01:14:32,063 INFO L150 apSepIcfgTransformer]: starting freeze-var-style preprocessing [2018-01-30 01:14:32,103 INFO L162 apSepIcfgTransformer]: finished StoreIndexFreezer, created 5 freeze vars and freeze var literals (each corresponds to one heap write) [2018-01-30 01:14:32,133 INFO L221 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-01-30 01:14:32,181 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-30 01:14:38,254 INFO L311 AbstractInterpreter]: Visited 47 different actions 121 times. Merged at 24 different actions 46 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 35 variables. [2018-01-30 01:14:38,256 INFO L229 apSepIcfgTransformer]: finished equality analysis [2018-01-30 01:14:38,265 INFO L244 HeapSepPreAnalysis]: Number of read from array group [#memory_int] : 2 [2018-01-30 01:14:38,265 INFO L241 apSepIcfgTransformer]: Finished pre analysis before partitioning [2018-01-30 01:14:38,266 INFO L242 apSepIcfgTransformer]: array groups: Set: [#memory_int] [2018-01-30 01:14:38,266 INFO L244 apSepIcfgTransformer]: select infos: Set: ((select |v_#memory_int_5| 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: L554)) ((select (select |v_#memory_int_1| v_cstrlen_~s~2.base_3) v_cstrlen_~s~2.offset_3), at (SUMMARY for call #t~mem1 := read~int(~s~2.base, ~s~2.offset, 1); srcloc: L544')) [2018-01-30 01:14:38,271 INFO L547 PartitionManager]: partitioning result: [2018-01-30 01:14:38,271 INFO L552 PartitionManager]: location blocks for array group [#memory_int] [2018-01-30 01:14:38,271 INFO L561 PartitionManager]: at dimension 0 [2018-01-30 01:14:38,271 INFO L562 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-01-30 01:14:38,271 INFO L563 PartitionManager]: # location blocks :2 [2018-01-30 01:14:38,272 INFO L561 PartitionManager]: at dimension 1 [2018-01-30 01:14:38,272 INFO L562 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-01-30 01:14:38,272 INFO L563 PartitionManager]: # location blocks :1 [2018-01-30 01:14:38,272 INFO L86 ransitionTransformer]: executing heap partitioning transformation [2018-01-30 01:14:38,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 30.01 01:14:38 BasicIcfg [2018-01-30 01:14:38,287 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-01-30 01:14:38,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-30 01:14:38,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-30 01:14:38,290 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-30 01:14:38,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 01:14:31" (1/4) ... [2018-01-30 01:14:38,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f8be552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 01:14:38, skipping insertion in model container [2018-01-30 01:14:38,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:14:31" (2/4) ... [2018-01-30 01:14:38,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f8be552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 01:14:38, skipping insertion in model container [2018-01-30 01:14:38,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 01:14:32" (3/4) ... [2018-01-30 01:14:38,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f8be552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 01:14:38, skipping insertion in model container [2018-01-30 01:14:38,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 30.01 01:14:38" (4/4) ... [2018-01-30 01:14:38,294 INFO L107 eAbstractionObserver]: Analyzing ICFG HeapSeparatedIcfg [2018-01-30 01:14:38,300 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-30 01:14:38,306 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-01-30 01:14:38,394 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-30 01:14:38,394 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-30 01:14:38,394 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-30 01:14:38,394 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-30 01:14:38,394 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-30 01:14:38,395 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-30 01:14:38,395 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-30 01:14:38,395 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-30 01:14:38,396 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-30 01:14:38,405 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-01-30 01:14:38,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-01-30 01:14:38,410 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:14:38,411 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:14:38,411 INFO L371 AbstractCegarLoop]: === Iteration 1 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 01:14:38,414 INFO L82 PathProgramCache]: Analyzing trace with hash 2110774640, now seen corresponding path program 1 times [2018-01-30 01:14:38,416 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:14:38,416 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:14:38,455 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:14:38,456 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:14:38,456 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:14:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:14:38,504 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:14:38,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:14:38,634 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:14:38,634 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-30 01:14:38,635 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-30 01:14:38,642 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-30 01:14:38,643 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-30 01:14:38,644 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 5 states. [2018-01-30 01:14:38,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:14:38,747 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2018-01-30 01:14:38,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-30 01:14:38,749 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-01-30 01:14:38,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:14:38,758 INFO L225 Difference]: With dead ends: 54 [2018-01-30 01:14:38,759 INFO L226 Difference]: Without dead ends: 38 [2018-01-30 01:14:38,761 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-01-30 01:14:38,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-01-30 01:14:38,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-01-30 01:14:38,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-01-30 01:14:38,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2018-01-30 01:14:38,795 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 9 [2018-01-30 01:14:38,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:14:38,795 INFO L432 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2018-01-30 01:14:38,796 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-30 01:14:38,796 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2018-01-30 01:14:38,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-01-30 01:14:38,796 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:14:38,797 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:14:38,797 INFO L371 AbstractCegarLoop]: === Iteration 2 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 01:14:38,797 INFO L82 PathProgramCache]: Analyzing trace with hash 2110774638, now seen corresponding path program 1 times [2018-01-30 01:14:38,797 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:14:38,797 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:14:38,798 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:14:38,798 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:14:38,798 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:14:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:14:38,804 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:14:38,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:14:38,831 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:14:38,831 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-30 01:14:38,832 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-30 01:14:38,833 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-30 01:14:38,833 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-30 01:14:38,833 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 4 states. [2018-01-30 01:14:38,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:14:38,897 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2018-01-30 01:14:38,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-30 01:14:38,898 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-01-30 01:14:38,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:14:38,899 INFO L225 Difference]: With dead ends: 38 [2018-01-30 01:14:38,899 INFO L226 Difference]: Without dead ends: 37 [2018-01-30 01:14:38,899 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-30 01:14:38,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-01-30 01:14:38,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-01-30 01:14:38,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-01-30 01:14:38,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2018-01-30 01:14:38,905 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 9 [2018-01-30 01:14:38,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:14:38,905 INFO L432 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2018-01-30 01:14:38,905 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-30 01:14:38,905 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2018-01-30 01:14:38,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-30 01:14:38,906 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:14:38,906 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:14:38,906 INFO L371 AbstractCegarLoop]: === Iteration 3 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 01:14:38,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1289726560, now seen corresponding path program 1 times [2018-01-30 01:14:38,907 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:14:38,907 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:14:38,908 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:14:38,908 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:14:38,908 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:14:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:14:38,921 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:14:39,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:14:39,056 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:14:39,056 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-30 01:14:39,056 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-30 01:14:39,056 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-30 01:14:39,056 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-01-30 01:14:39,057 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 9 states. [2018-01-30 01:14:39,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:14:39,247 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2018-01-30 01:14:39,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-30 01:14:39,247 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2018-01-30 01:14:39,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:14:39,251 INFO L225 Difference]: With dead ends: 49 [2018-01-30 01:14:39,251 INFO L226 Difference]: Without dead ends: 48 [2018-01-30 01:14:39,251 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-01-30 01:14:39,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-01-30 01:14:39,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 39. [2018-01-30 01:14:39,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-01-30 01:14:39,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2018-01-30 01:14:39,259 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 15 [2018-01-30 01:14:39,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:14:39,259 INFO L432 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2018-01-30 01:14:39,259 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-30 01:14:39,259 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2018-01-30 01:14:39,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-30 01:14:39,260 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:14:39,260 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:14:39,260 INFO L371 AbstractCegarLoop]: === Iteration 4 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 01:14:39,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1289726558, now seen corresponding path program 1 times [2018-01-30 01:14:39,261 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:14:39,261 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:14:39,262 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:14:39,262 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:14:39,262 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:14:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:14:39,273 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:14:39,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:14:39,328 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:14:39,328 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-30 01:14:39,328 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-30 01:14:39,328 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-30 01:14:39,328 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-30 01:14:39,328 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 6 states. [2018-01-30 01:14:39,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:14:39,396 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2018-01-30 01:14:39,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-30 01:14:39,396 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-01-30 01:14:39,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:14:39,397 INFO L225 Difference]: With dead ends: 39 [2018-01-30 01:14:39,397 INFO L226 Difference]: Without dead ends: 38 [2018-01-30 01:14:39,398 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-01-30 01:14:39,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-01-30 01:14:39,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-01-30 01:14:39,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-01-30 01:14:39,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2018-01-30 01:14:39,404 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 15 [2018-01-30 01:14:39,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:14:39,404 INFO L432 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2018-01-30 01:14:39,404 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-30 01:14:39,404 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2018-01-30 01:14:39,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-30 01:14:39,405 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:14:39,405 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:14:39,405 INFO L371 AbstractCegarLoop]: === Iteration 5 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 01:14:39,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1230559644, now seen corresponding path program 1 times [2018-01-30 01:14:39,406 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:14:39,406 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:14:39,407 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:14:39,407 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:14:39,407 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:14:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:14:39,424 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:14:39,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:14:39,469 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:14:39,469 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-30 01:14:39,469 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-30 01:14:39,470 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-30 01:14:39,470 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-30 01:14:39,470 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 4 states. [2018-01-30 01:14:39,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:14:39,521 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2018-01-30 01:14:39,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-30 01:14:39,521 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-01-30 01:14:39,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:14:39,522 INFO L225 Difference]: With dead ends: 38 [2018-01-30 01:14:39,522 INFO L226 Difference]: Without dead ends: 28 [2018-01-30 01:14:39,522 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-30 01:14:39,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-01-30 01:14:39,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-01-30 01:14:39,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-01-30 01:14:39,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2018-01-30 01:14:39,527 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 15 [2018-01-30 01:14:39,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:14:39,528 INFO L432 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2018-01-30 01:14:39,528 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-30 01:14:39,528 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2018-01-30 01:14:39,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-30 01:14:39,529 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:14:39,529 INFO L350 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:14:39,529 INFO L371 AbstractCegarLoop]: === Iteration 6 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 01:14:39,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1509086939, now seen corresponding path program 1 times [2018-01-30 01:14:39,530 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:14:39,530 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:14:39,531 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:14:39,531 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:14:39,531 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:14:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:14:39,546 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:14:39,767 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:14:39,768 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:14:39,768 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:14:39,781 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:14:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:14:39,815 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:14:39,863 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-01-30 01:14:39,864 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:14:39,877 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-01-30 01:14:39,879 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-01-30 01:14:39,880 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-01-30 01:14:39,882 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:14:39,894 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-30 01:14:39,895 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:25, output treesize:21 [2018-01-30 01:14:40,149 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2018-01-30 01:14:40,183 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 11 [2018-01-30 01:14:40,184 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-01-30 01:14:40,191 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-30 01:14:40,285 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-01-30 01:14:40,285 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:34, output treesize:33 [2018-01-30 01:14:40,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:14:40,413 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:14:40,414 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 17 [2018-01-30 01:14:40,414 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-01-30 01:14:40,414 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-01-30 01:14:40,415 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2018-01-30 01:14:40,415 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 18 states. [2018-01-30 01:14:40,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:14:40,870 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2018-01-30 01:14:40,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-30 01:14:40,870 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 22 [2018-01-30 01:14:40,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:14:40,871 INFO L225 Difference]: With dead ends: 40 [2018-01-30 01:14:40,871 INFO L226 Difference]: Without dead ends: 39 [2018-01-30 01:14:40,872 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2018-01-30 01:14:40,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-01-30 01:14:40,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2018-01-30 01:14:40,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-01-30 01:14:40,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2018-01-30 01:14:40,878 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 22 [2018-01-30 01:14:40,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:14:40,879 INFO L432 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2018-01-30 01:14:40,879 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-01-30 01:14:40,879 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2018-01-30 01:14:40,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-30 01:14:40,880 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:14:40,880 INFO L350 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:14:40,880 INFO L371 AbstractCegarLoop]: === Iteration 7 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 01:14:40,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1637434880, now seen corresponding path program 2 times [2018-01-30 01:14:40,880 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:14:40,880 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:14:40,881 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:14:40,881 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:14:40,882 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:14:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:14:40,896 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:14:41,228 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:14:41,229 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:14:41,229 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:14:41,235 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-30 01:14:41,243 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:14:41,247 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:14:41,248 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:14:41,251 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:14:41,254 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-01-30 01:14:41,254 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:14:41,258 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:14:41,259 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-01-30 01:14:41,270 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 16 treesize of output 14 [2018-01-30 01:14:41,273 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 14 treesize of output 17 [2018-01-30 01:14:41,277 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimArr_1 term size 6 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:270) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:243) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:445) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:237) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:185) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackTraceAbstractionRefinementStrategy.getTraceCheck(MultiTrackTraceAbstractionRefinementStrategy.java:218) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:396) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-01-30 01:14:41,280 INFO L168 Benchmark]: Toolchain (without parser) took 9686.11 ms. Allocated memory was 302.5 MB in the beginning and 882.9 MB in the end (delta: 580.4 MB). Free memory was 261.6 MB in the beginning and 483.8 MB in the end (delta: -222.3 MB). Peak memory consumption was 358.1 MB. Max. memory is 5.3 GB. [2018-01-30 01:14:41,281 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 302.5 MB. Free memory is still 267.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 01:14:41,281 INFO L168 Benchmark]: CACSL2BoogieTranslator took 187.93 ms. Allocated memory is still 302.5 MB. Free memory was 261.6 MB in the beginning and 251.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-30 01:14:41,282 INFO L168 Benchmark]: Boogie Preprocessor took 36.75 ms. Allocated memory is still 302.5 MB. Free memory was 251.6 MB in the beginning and 249.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-30 01:14:41,288 INFO L168 Benchmark]: RCFGBuilder took 222.22 ms. Allocated memory is still 302.5 MB. Free memory was 249.6 MB in the beginning and 235.0 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. [2018-01-30 01:14:41,289 INFO L168 Benchmark]: IcfgTransformer took 6238.78 ms. Allocated memory was 302.5 MB in the beginning and 794.8 MB in the end (delta: 492.3 MB). Free memory was 235.0 MB in the beginning and 315.3 MB in the end (delta: -80.3 MB). Peak memory consumption was 412.0 MB. Max. memory is 5.3 GB. [2018-01-30 01:14:41,289 INFO L168 Benchmark]: TraceAbstraction took 2991.63 ms. Allocated memory was 794.8 MB in the beginning and 882.9 MB in the end (delta: 88.1 MB). Free memory was 315.3 MB in the beginning and 483.8 MB in the end (delta: -168.5 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 01:14:41,293 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 302.5 MB. Free memory is still 267.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 187.93 ms. Allocated memory is still 302.5 MB. Free memory was 261.6 MB in the beginning and 251.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 36.75 ms. Allocated memory is still 302.5 MB. Free memory was 251.6 MB in the beginning and 249.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 222.22 ms. Allocated memory is still 302.5 MB. Free memory was 249.6 MB in the beginning and 235.0 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. * IcfgTransformer took 6238.78 ms. Allocated memory was 302.5 MB in the beginning and 794.8 MB in the end (delta: 492.3 MB). Free memory was 235.0 MB in the beginning and 315.3 MB in the end (delta: -80.3 MB). Peak memory consumption was 412.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2991.63 ms. Allocated memory was 794.8 MB in the beginning and 882.9 MB in the end (delta: 88.1 MB). Free memory was 315.3 MB in the beginning and 483.8 MB in the end (delta: -168.5 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 39 LocStat_MAX_WEQGRAPH_SIZE : 4 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 625 LocStat_NO_SUPPORTING_DISEQUALITIES : 175 LocStat_NO_DISJUNCTIONS : -78 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 56 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 87 TransStat_NO_SUPPORTING_DISEQUALITIES : 6 TransStat_NO_DISJUNCTIONS : 57 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 6.835842 RENAME_VARIABLES(MILLISECONDS) : 0.011070 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 5.151010 PROJECTAWAY(MILLISECONDS) : 5.993655 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.186018 DISJOIN(MILLISECONDS) : 0.172453 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.020932 ADD_EQUALITY(MILLISECONDS) : 0.009763 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.007065 #CONJOIN_DISJUNCTIVE : 189 #RENAME_VARIABLES : 397 #UNFREEZE : 0 #CONJOIN : 305 #PROJECTAWAY : 276 #ADD_WEAK_EQUALITY : 6 #DISJOIN : 45 #RENAME_VARIABLES_DISJUNCTIVE : 394 #ADD_EQUALITY : 88 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 5 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: HeapSeparatorStatistics #COUNT_NEW_ARRAY_VARS_[#memory_int] : 2 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_0 : 2 COUNT_BLOCKS_for_[#memory_int]_at_dim_0 : 2 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_1 : 1 COUNT_BLOCKS_for_[#memory_int]_at_dim_1 : 1 COUNT_ARRAY_READS for [#memory_int] : 2 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_1 term size 6 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimArr_1 term size 6: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-Benchmark-0-2018-01-30_01-14-41-305.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-VPDomainBenchmark-0-2018-01-30_01-14-41-305.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-BenchmarkWithCounters-0-2018-01-30_01-14-41-305.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-HeapSeparatorBenchmark-0-2018-01-30_01-14-41-305.csv Received shutdown request...