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/cstrchr-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-5f7ec6e [2018-01-31 09:19:16,236 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-31 09:19:16,238 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-31 09:19:16,254 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-31 09:19:16,255 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-31 09:19:16,256 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-31 09:19:16,257 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-31 09:19:16,263 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-31 09:19:16,266 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-31 09:19:16,266 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-31 09:19:16,267 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-31 09:19:16,268 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-31 09:19:16,269 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-31 09:19:16,270 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-31 09:19:16,271 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-31 09:19:16,273 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-31 09:19:16,275 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-31 09:19:16,277 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-31 09:19:16,278 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-31 09:19:16,280 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-31 09:19:16,282 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-31 09:19:16,282 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-31 09:19:16,283 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-31 09:19:16,284 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-31 09:19:16,285 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-31 09:19:16,286 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-31 09:19:16,286 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-31 09:19:16,287 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-31 09:19:16,287 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-31 09:19:16,287 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-31 09:19:16,288 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-31 09:19:16,288 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 09:19:16,299 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-31 09:19:16,299 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-31 09:19:16,300 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-31 09:19:16,300 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-31 09:19:16,300 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-31 09:19:16,300 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-31 09:19:16,301 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-31 09:19:16,301 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-31 09:19:16,301 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-31 09:19:16,302 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-31 09:19:16,302 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-31 09:19:16,302 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-31 09:19:16,302 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-31 09:19:16,302 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-31 09:19:16,302 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-31 09:19:16,303 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-31 09:19:16,303 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-31 09:19:16,303 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-31 09:19:16,303 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-31 09:19:16,303 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-31 09:19:16,304 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-31 09:19:16,304 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-31 09:19:16,304 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-31 09:19:16,304 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-31 09:19:16,304 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-31 09:19:16,305 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-31 09:19:16,305 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-31 09:19:16,305 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-31 09:19:16,305 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-31 09:19:16,305 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-31 09:19:16,305 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-31 09:19:16,306 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-31 09:19:16,307 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-31 09:19:16,307 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-31 09:19:16,360 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-31 09:19:16,374 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-31 09:19:16,381 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-31 09:19:16,383 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-31 09:19:16,383 INFO L276 PluginConnector]: CDTParser initialized [2018-01-31 09:19:16,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrchr-alloca_true-valid-memsafety_true-termination.i [2018-01-31 09:19:16,618 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-31 09:19:16,629 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-01-31 09:19:16,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-31 09:19:16,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-31 09:19:16,637 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-31 09:19:16,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 09:19:16" (1/1) ... [2018-01-31 09:19:16,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17a99aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:19:16, skipping insertion in model container [2018-01-31 09:19:16,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 09:19:16" (1/1) ... [2018-01-31 09:19:16,661 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-31 09:19:16,726 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-31 09:19:16,908 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-31 09:19:16,939 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-31 09:19:16,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:19:16 WrapperNode [2018-01-31 09:19:16,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-31 09:19:16,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-31 09:19:16,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-31 09:19:16,951 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-31 09:19:16,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:19:16" (1/1) ... [2018-01-31 09:19:16,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:19:16" (1/1) ... [2018-01-31 09:19:16,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:19:16" (1/1) ... [2018-01-31 09:19:16,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:19:16" (1/1) ... [2018-01-31 09:19:16,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:19:16" (1/1) ... [2018-01-31 09:19:16,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:19:16" (1/1) ... [2018-01-31 09:19:16,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:19:16" (1/1) ... [2018-01-31 09:19:16,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-31 09:19:17,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-31 09:19:17,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-31 09:19:17,025 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-31 09:19:17,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:19:16" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-31 09:19:17,078 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-31 09:19:17,078 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-31 09:19:17,079 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrchr [2018-01-31 09:19:17,079 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-31 09:19:17,079 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-31 09:19:17,079 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-31 09:19:17,079 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-31 09:19:17,079 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-31 09:19:17,079 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-31 09:19:17,080 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-31 09:19:17,080 INFO L128 BoogieDeclarations]: Found specification of procedure cstrchr [2018-01-31 09:19:17,082 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-31 09:19:17,083 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-31 09:19:17,083 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-31 09:19:17,540 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-31 09:19:17,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:19:17 BoogieIcfgContainer [2018-01-31 09:19:17,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-31 09:19:17,541 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-01-31 09:19:17,541 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-01-31 09:19:17,542 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-01-31 09:19:17,546 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:19:17" (1/1) ... [2018-01-31 09:19:17,553 INFO L103 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-01-31 09:19:17,554 INFO L104 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-01-31 09:19:17,554 INFO L150 apSepIcfgTransformer]: starting freeze-var-style preprocessing [2018-01-31 09:19:17,614 INFO L162 apSepIcfgTransformer]: finished StoreIndexFreezer, created 5 freeze vars and freeze var literals (each corresponds to one heap write) [2018-01-31 09:19:17,642 INFO L221 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-01-31 09:19:17,709 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-31 09:19:28,822 INFO L314 AbstractInterpreter]: Visited 68 different actions 305 times. Merged at 45 different actions 170 times. Never widened. Found 18 fixpoints after 4 different actions. Largest state had 41 variables. [2018-01-31 09:19:28,824 INFO L229 apSepIcfgTransformer]: finished equality analysis [2018-01-31 09:19:28,833 INFO L244 HeapSepPreAnalysis]: Number of read from array group [#memory_int] : 4 [2018-01-31 09:19:28,834 INFO L241 apSepIcfgTransformer]: Finished pre analysis before partitioning [2018-01-31 09:19:28,834 INFO L242 apSepIcfgTransformer]: array groups: Set: [#memory_int] [2018-01-31 09:19:28,835 INFO L244 apSepIcfgTransformer]: select infos: Set: ((select |v_#memory_int_7| v_main_~nondetString~3.base_2), at (SUMMARY for call write~int(0, ~nondetString~3.base, ~nondetString~3.offset + (~length~3 - 1) * 1, 1); srcloc: L552)) ((select (select |v_#memory_int_1| v_cstrchr_~s.base_2) v_cstrchr_~s.offset_2), at (SUMMARY for call #t~mem0 := read~int(~s.base, ~s.offset, 1); srcloc: L542)) ((select (select |v_#memory_int_2| v_cstrchr_~s.base_5) v_cstrchr_~s.offset_4), at (SUMMARY for call #t~mem1 := read~int(~s.base, ~s.offset, 1); srcloc: L542''')) ((select (select |v_#memory_int_3| v_cstrchr_~s.base_10) v_cstrchr_~s.offset_8), at (SUMMARY for call #t~mem4 := read~int(~s.base, ~s.offset, 1); srcloc: L542''''''''''''''')) [2018-01-31 09:19:28,840 INFO L547 PartitionManager]: partitioning result: [2018-01-31 09:19:28,840 INFO L552 PartitionManager]: location blocks for array group [#memory_int] [2018-01-31 09:19:28,840 INFO L562 PartitionManager]: at dimension 0 [2018-01-31 09:19:28,840 INFO L563 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-01-31 09:19:28,840 INFO L564 PartitionManager]: # location blocks :2 [2018-01-31 09:19:28,840 INFO L562 PartitionManager]: at dimension 1 [2018-01-31 09:19:28,840 INFO L563 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-01-31 09:19:28,840 INFO L564 PartitionManager]: # location blocks :2 [2018-01-31 09:19:28,841 INFO L86 ransitionTransformer]: executing heap partitioning transformation [2018-01-31 09:19:28,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 09:19:28 BasicIcfg [2018-01-31 09:19:28,859 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-01-31 09:19:28,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-31 09:19:28,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-31 09:19:28,864 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-31 09:19:28,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 09:19:16" (1/4) ... [2018-01-31 09:19:28,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b13ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 09:19:28, skipping insertion in model container [2018-01-31 09:19:28,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 09:19:16" (2/4) ... [2018-01-31 09:19:28,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b13ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 09:19:28, skipping insertion in model container [2018-01-31 09:19:28,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 09:19:17" (3/4) ... [2018-01-31 09:19:28,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b13ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 09:19:28, skipping insertion in model container [2018-01-31 09:19:28,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 09:19:28" (4/4) ... [2018-01-31 09:19:28,871 INFO L107 eAbstractionObserver]: Analyzing ICFG HeapSeparatedIcfg [2018-01-31 09:19:28,880 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-31 09:19:28,974 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-01-31 09:19:29,021 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-31 09:19:29,022 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-31 09:19:29,022 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-31 09:19:29,022 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-31 09:19:29,022 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-31 09:19:29,023 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-31 09:19:29,023 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-31 09:19:29,023 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-31 09:19:29,024 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-31 09:19:29,038 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2018-01-31 09:19:29,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-01-31 09:19:29,045 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:19:29,046 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:19:29,046 INFO L371 AbstractCegarLoop]: === Iteration 1 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:19:29,051 INFO L82 PathProgramCache]: Analyzing trace with hash 701543362, now seen corresponding path program 1 times [2018-01-31 09:19:29,053 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:19:29,053 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:19:29,109 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:19:29,109 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:19:29,109 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:19:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:19:29,173 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:19:29,309 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 09:19:29,311 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:19:29,311 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-31 09:19:29,313 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-31 09:19:29,323 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-31 09:19:29,323 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-31 09:19:29,325 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 4 states. [2018-01-31 09:19:29,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:19:29,563 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2018-01-31 09:19:29,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-31 09:19:29,566 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-01-31 09:19:29,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:19:29,582 INFO L225 Difference]: With dead ends: 82 [2018-01-31 09:19:29,582 INFO L226 Difference]: Without dead ends: 57 [2018-01-31 09:19:29,586 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-31 09:19:29,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-01-31 09:19:29,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-01-31 09:19:29,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-01-31 09:19:29,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 62 transitions. [2018-01-31 09:19:29,628 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 62 transitions. Word has length 9 [2018-01-31 09:19:29,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:19:29,628 INFO L432 AbstractCegarLoop]: Abstraction has 57 states and 62 transitions. [2018-01-31 09:19:29,628 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-31 09:19:29,628 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 62 transitions. [2018-01-31 09:19:29,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-01-31 09:19:29,630 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:19:29,630 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:19:29,630 INFO L371 AbstractCegarLoop]: === Iteration 2 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:19:29,630 INFO L82 PathProgramCache]: Analyzing trace with hash 701543364, now seen corresponding path program 1 times [2018-01-31 09:19:29,630 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:19:29,631 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:19:29,631 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:19:29,632 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:19:29,632 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:19:29,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:19:29,650 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:19:29,891 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 09:19:29,891 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:19:29,891 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-31 09:19:29,893 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-31 09:19:29,893 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-31 09:19:29,893 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-31 09:19:29,893 INFO L87 Difference]: Start difference. First operand 57 states and 62 transitions. Second operand 5 states. [2018-01-31 09:19:29,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:19:29,997 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2018-01-31 09:19:29,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-31 09:19:29,998 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-01-31 09:19:29,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:19:29,999 INFO L225 Difference]: With dead ends: 57 [2018-01-31 09:19:29,999 INFO L226 Difference]: Without dead ends: 56 [2018-01-31 09:19:30,000 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-01-31 09:19:30,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-01-31 09:19:30,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-01-31 09:19:30,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-01-31 09:19:30,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2018-01-31 09:19:30,007 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 9 [2018-01-31 09:19:30,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:19:30,007 INFO L432 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2018-01-31 09:19:30,008 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-31 09:19:30,008 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2018-01-31 09:19:30,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-31 09:19:30,008 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:19:30,008 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:19:30,009 INFO L371 AbstractCegarLoop]: === Iteration 3 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:19:30,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1519050866, now seen corresponding path program 1 times [2018-01-31 09:19:30,009 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:19:30,009 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:19:30,010 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:19:30,011 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:19:30,011 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:19:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:19:30,025 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:19:30,220 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 09:19:30,220 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:19:30,221 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-31 09:19:30,221 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-31 09:19:30,221 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-31 09:19:30,221 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-01-31 09:19:30,221 INFO L87 Difference]: Start difference. First operand 56 states and 61 transitions. Second operand 8 states. [2018-01-31 09:19:30,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:19:30,464 INFO L93 Difference]: Finished difference Result 86 states and 94 transitions. [2018-01-31 09:19:30,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-31 09:19:30,465 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-01-31 09:19:30,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:19:30,469 INFO L225 Difference]: With dead ends: 86 [2018-01-31 09:19:30,469 INFO L226 Difference]: Without dead ends: 83 [2018-01-31 09:19:30,470 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-01-31 09:19:30,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-01-31 09:19:30,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 67. [2018-01-31 09:19:30,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-01-31 09:19:30,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 77 transitions. [2018-01-31 09:19:30,479 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 77 transitions. Word has length 15 [2018-01-31 09:19:30,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:19:30,480 INFO L432 AbstractCegarLoop]: Abstraction has 67 states and 77 transitions. [2018-01-31 09:19:30,480 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-31 09:19:30,480 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 77 transitions. [2018-01-31 09:19:30,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-31 09:19:30,480 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:19:30,481 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:19:30,481 INFO L371 AbstractCegarLoop]: === Iteration 4 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:19:30,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1519050864, now seen corresponding path program 1 times [2018-01-31 09:19:30,481 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:19:30,481 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:19:30,482 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:19:30,482 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:19:30,483 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:19:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:19:30,496 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:19:30,554 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 09:19:30,555 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:19:30,555 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-31 09:19:30,555 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-31 09:19:30,555 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-31 09:19:30,555 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-31 09:19:30,555 INFO L87 Difference]: Start difference. First operand 67 states and 77 transitions. Second operand 5 states. [2018-01-31 09:19:30,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:19:30,630 INFO L93 Difference]: Finished difference Result 68 states and 77 transitions. [2018-01-31 09:19:30,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-31 09:19:30,630 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-01-31 09:19:30,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:19:30,631 INFO L225 Difference]: With dead ends: 68 [2018-01-31 09:19:30,631 INFO L226 Difference]: Without dead ends: 65 [2018-01-31 09:19:30,632 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-31 09:19:30,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-01-31 09:19:30,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-01-31 09:19:30,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-01-31 09:19:30,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 72 transitions. [2018-01-31 09:19:30,639 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 72 transitions. Word has length 15 [2018-01-31 09:19:30,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:19:30,640 INFO L432 AbstractCegarLoop]: Abstraction has 65 states and 72 transitions. [2018-01-31 09:19:30,640 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-31 09:19:30,640 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 72 transitions. [2018-01-31 09:19:30,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-31 09:19:30,640 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:19:30,641 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:19:30,641 INFO L371 AbstractCegarLoop]: === Iteration 5 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:19:30,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1979801878, now seen corresponding path program 1 times [2018-01-31 09:19:30,641 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:19:30,641 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:19:30,642 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:19:30,642 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:19:30,642 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:19:30,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:19:30,656 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:19:30,718 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 09:19:30,718 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:19:30,718 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-31 09:19:30,718 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-31 09:19:30,718 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-31 09:19:30,718 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-31 09:19:30,719 INFO L87 Difference]: Start difference. First operand 65 states and 72 transitions. Second operand 4 states. [2018-01-31 09:19:31,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:19:31,090 INFO L93 Difference]: Finished difference Result 65 states and 72 transitions. [2018-01-31 09:19:31,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-31 09:19:31,091 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-01-31 09:19:31,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:19:31,092 INFO L225 Difference]: With dead ends: 65 [2018-01-31 09:19:31,092 INFO L226 Difference]: Without dead ends: 46 [2018-01-31 09:19:31,092 INFO L554 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 [2018-01-31 09:19:31,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-01-31 09:19:31,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-01-31 09:19:31,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-01-31 09:19:31,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2018-01-31 09:19:31,098 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 17 [2018-01-31 09:19:31,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:19:31,099 INFO L432 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2018-01-31 09:19:31,099 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-31 09:19:31,099 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2018-01-31 09:19:31,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-31 09:19:31,100 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:19:31,100 INFO L351 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:19:31,100 INFO L371 AbstractCegarLoop]: === Iteration 6 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:19:31,100 INFO L82 PathProgramCache]: Analyzing trace with hash -28205583, now seen corresponding path program 1 times [2018-01-31 09:19:31,100 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:19:31,100 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:19:31,101 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:19:31,102 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:19:31,102 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:19:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:19:31,114 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:19:31,179 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:19:31,179 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-31 09:19:31,179 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-31 09:19:31,180 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-31 09:19:31,180 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-31 09:19:31,180 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-31 09:19:31,180 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 3 states. [2018-01-31 09:19:31,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-31 09:19:31,250 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2018-01-31 09:19:31,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-31 09:19:31,250 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-01-31 09:19:31,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-31 09:19:31,251 INFO L225 Difference]: With dead ends: 69 [2018-01-31 09:19:31,251 INFO L226 Difference]: Without dead ends: 47 [2018-01-31 09:19:31,251 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 09:19:31,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-01-31 09:19:31,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-01-31 09:19:31,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-01-31 09:19:31,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2018-01-31 09:19:31,257 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 26 [2018-01-31 09:19:31,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-31 09:19:31,257 INFO L432 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2018-01-31 09:19:31,257 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-31 09:19:31,258 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2018-01-31 09:19:31,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-01-31 09:19:31,258 INFO L343 BasicCegarLoop]: Found error trace [2018-01-31 09:19:31,259 INFO L351 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-31 09:19:31,259 INFO L371 AbstractCegarLoop]: === Iteration 7 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-31 09:19:31,259 INFO L82 PathProgramCache]: Analyzing trace with hash 320152967, now seen corresponding path program 1 times [2018-01-31 09:19:31,259 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-31 09:19:31,259 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-31 09:19:31,260 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:19:31,260 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:19:31,261 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-31 09:19:31,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:19:31,294 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-31 09:19:31,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-31 09:19:31,703 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-31 09:19:31,703 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 09:19:31,717 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-31 09:19:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-31 09:19:31,760 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-31 09:19:31,811 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 09:19:31,834 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 09:19:31,847 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 09:19:31,850 INFO L168 Benchmark]: Toolchain (without parser) took 15231.58 ms. Allocated memory was 304.1 MB in the beginning and 1.1 GB in the end (delta: 778.6 MB). Free memory was 264.1 MB in the beginning and 855.9 MB in the end (delta: -591.8 MB). Peak memory consumption was 186.8 MB. Max. memory is 5.3 GB. [2018-01-31 09:19:31,851 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 304.1 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-31 09:19:31,851 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.06 ms. Allocated memory is still 304.1 MB. Free memory was 263.1 MB in the beginning and 253.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-31 09:19:31,852 INFO L168 Benchmark]: Boogie Preprocessor took 73.11 ms. Allocated memory is still 304.1 MB. Free memory was 253.1 MB in the beginning and 251.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-31 09:19:31,852 INFO L168 Benchmark]: RCFGBuilder took 516.59 ms. Allocated memory is still 304.1 MB. Free memory was 251.1 MB in the beginning and 233.6 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 5.3 GB. [2018-01-31 09:19:31,852 INFO L168 Benchmark]: IcfgTransformer took 11318.20 ms. Allocated memory was 304.1 MB in the beginning and 906.0 MB in the end (delta: 601.9 MB). Free memory was 233.6 MB in the beginning and 625.5 MB in the end (delta: -391.9 MB). Peak memory consumption was 210.0 MB. Max. memory is 5.3 GB. [2018-01-31 09:19:31,853 INFO L168 Benchmark]: TraceAbstraction took 2989.30 ms. Allocated memory was 906.0 MB in the beginning and 1.1 GB in the end (delta: 176.7 MB). Free memory was 625.5 MB in the beginning and 855.9 MB in the end (delta: -230.4 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-31 09:19:31,856 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 304.1 MB. Free memory is still 270.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 320.06 ms. Allocated memory is still 304.1 MB. Free memory was 263.1 MB in the beginning and 253.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 73.11 ms. Allocated memory is still 304.1 MB. Free memory was 253.1 MB in the beginning and 251.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 516.59 ms. Allocated memory is still 304.1 MB. Free memory was 251.1 MB in the beginning and 233.6 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 5.3 GB. * IcfgTransformer took 11318.20 ms. Allocated memory was 304.1 MB in the beginning and 906.0 MB in the end (delta: 601.9 MB). Free memory was 233.6 MB in the beginning and 625.5 MB in the end (delta: -391.9 MB). Peak memory consumption was 210.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2989.30 ms. Allocated memory was 906.0 MB in the beginning and 1.1 GB in the end (delta: 176.7 MB). Free memory was 625.5 MB in the beginning and 855.9 MB in the end (delta: -230.4 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 : 56 LocStat_MAX_WEQGRAPH_SIZE : 4 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 866 LocStat_NO_SUPPORTING_DISEQUALITIES : 296 LocStat_NO_DISJUNCTIONS : -112 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 77 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 112 TransStat_NO_SUPPORTING_DISEQUALITIES : 10 TransStat_NO_DISJUNCTIONS : 82 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 10.098564 RENAME_VARIABLES(MILLISECONDS) : 0.020196 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 7.534008 PROJECTAWAY(MILLISECONDS) : 10.156180 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.094499 DISJOIN(MILLISECONDS) : 0.251386 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.037061 ADD_EQUALITY(MILLISECONDS) : 0.015342 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.007201 #CONJOIN_DISJUNCTIVE : 474 #RENAME_VARIABLES : 1059 #UNFREEZE : 0 #CONJOIN : 738 #PROJECTAWAY : 692 #ADD_WEAK_EQUALITY : 6 #DISJOIN : 79 #RENAME_VARIABLES_DISJUNCTIVE : 1034 #ADD_EQUALITY : 113 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 9 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: HeapSeparatorStatistics #COUNT_NEW_ARRAY_VARS_[#memory_int] : 4 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 : 2 COUNT_BLOCKS_for_[#memory_int]_at_dim_1 : 2 COUNT_ARRAY_READS for [#memory_int] : 4 * 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/cstrchr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-Benchmark-0-2018-01-31_09-19-31-873.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrchr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-VPDomainBenchmark-0-2018-01-31_09-19-31-873.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrchr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-BenchmarkWithCounters-0-2018-01-31_09-19-31-873.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrchr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-HeapSeparatorBenchmark-0-2018-01-31_09-19-31-873.csv Received shutdown request...