java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --traceabstraction.dump.automata.to.the.following.directory dump -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 11:30:42,100 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 11:30:42,102 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 11:30:42,114 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 11:30:42,115 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 11:30:42,116 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 11:30:42,117 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 11:30:42,119 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 11:30:42,121 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 11:30:42,122 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 11:30:42,123 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 11:30:42,123 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 11:30:42,124 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 11:30:42,126 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 11:30:42,130 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 11:30:42,131 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 11:30:42,133 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 11:30:42,139 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 11:30:42,141 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 11:30:42,145 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 11:30:42,146 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 11:30:42,151 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 11:30:42,155 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 11:30:42,156 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 11:30:42,156 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 11:30:42,160 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 11:30:42,162 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 11:30:42,163 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 11:30:42,164 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 11:30:42,169 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 11:30:42,170 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 11:30:42,171 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 11:30:42,172 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 11:30:42,172 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 11:30:42,173 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 11:30:42,176 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 11:30:42,176 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2018-10-10 11:30:42,205 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 11:30:42,209 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 11:30:42,211 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 11:30:42,212 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 11:30:42,212 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 11:30:42,213 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 11:30:42,213 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 11:30:42,213 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 11:30:42,213 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 11:30:42,213 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 11:30:42,214 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 11:30:42,214 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 11:30:42,214 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 11:30:42,214 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 11:30:42,214 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 11:30:42,216 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-10 11:30:42,216 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-10 11:30:42,217 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 11:30:42,217 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 11:30:42,217 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 11:30:42,217 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 11:30:42,217 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 11:30:42,218 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 11:30:42,218 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 11:30:42,218 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 11:30:42,218 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-10-10 11:30:42,218 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 11:30:42,219 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-10 11:30:42,219 INFO L133 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Dump automata to the following directory -> dump [2018-10-10 11:30:42,291 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 11:30:42,312 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 11:30:42,316 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 11:30:42,317 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 11:30:42,317 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 11:30:42,318 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-write.c [2018-10-10 11:30:42,683 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0c6a03a6/4576b70c92e84c1fbe570091253f96b4/FLAGf38cbe05a [2018-10-10 11:30:42,928 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 11:30:42,929 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength2_false-valid-deref-write.c [2018-10-10 11:30:42,935 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0c6a03a6/4576b70c92e84c1fbe570091253f96b4/FLAGf38cbe05a [2018-10-10 11:30:42,951 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0c6a03a6/4576b70c92e84c1fbe570091253f96b4 [2018-10-10 11:30:42,965 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 11:30:42,966 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 11:30:42,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 11:30:42,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 11:30:42,971 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 11:30:42,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 11:30:42" (1/1) ... [2018-10-10 11:30:42,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ed57e0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:42, skipping insertion in model container [2018-10-10 11:30:42,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 11:30:42" (1/1) ... [2018-10-10 11:30:42,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 11:30:43,010 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 11:30:43,212 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 11:30:43,227 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 11:30:43,253 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 11:30:43,274 INFO L193 MainTranslator]: Completed translation [2018-10-10 11:30:43,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:43 WrapperNode [2018-10-10 11:30:43,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 11:30:43,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 11:30:43,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 11:30:43,276 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 11:30:43,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:43" (1/1) ... [2018-10-10 11:30:43,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:43" (1/1) ... [2018-10-10 11:30:43,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 11:30:43,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 11:30:43,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 11:30:43,331 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 11:30:43,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:43" (1/1) ... [2018-10-10 11:30:43,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:43" (1/1) ... [2018-10-10 11:30:43,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:43" (1/1) ... [2018-10-10 11:30:43,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:43" (1/1) ... [2018-10-10 11:30:43,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:43" (1/1) ... [2018-10-10 11:30:43,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:43" (1/1) ... [2018-10-10 11:30:43,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:43" (1/1) ... [2018-10-10 11:30:43,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 11:30:43,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 11:30:43,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 11:30:43,368 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 11:30:43,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:43" (1/1) ... No working directory specified, using /storage/repos/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 [2018-10-10 11:30:43,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 11:30:43,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 11:30:44,156 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 11:30:44,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 11:30:44 BoogieIcfgContainer [2018-10-10 11:30:44,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 11:30:44,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 11:30:44,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 11:30:44,163 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 11:30:44,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 11:30:42" (1/3) ... [2018-10-10 11:30:44,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60753b3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 11:30:44, skipping insertion in model container [2018-10-10 11:30:44,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 11:30:43" (2/3) ... [2018-10-10 11:30:44,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60753b3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 11:30:44, skipping insertion in model container [2018-10-10 11:30:44,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 11:30:44" (3/3) ... [2018-10-10 11:30:44,167 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_false-valid-deref-write.c [2018-10-10 11:30:44,178 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 11:30:44,190 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-10-10 11:30:44,209 INFO L257 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2018-10-10 11:30:44,238 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 11:30:44,239 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 11:30:44,239 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 11:30:44,239 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 11:30:44,239 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 11:30:44,239 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 11:30:44,240 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 11:30:44,240 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 11:30:44,240 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 11:30:44,255 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-10-10 11:30:44,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-10 11:30:44,265 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:30:44,266 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:30:44,268 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:30:44,274 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:30:44,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1805952520, now seen corresponding path program 1 times [2018-10-10 11:30:44,278 INFO L227 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-10 11:30:44,279 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-10 11:30:44,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:30:44,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:30:44,375 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 11:30:44,434 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 [2018-10-10 11:30:44,437 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 11:30:44,468 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 11:30:44,468 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-10-10 11:30:44,537 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 11 [2018-10-10 11:30:44,538 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 11:30:44,548 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-10 11:30:44,549 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:11 [2018-10-10 11:30:44,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:30:44,643 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-10 11:30:44,649 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:30:44,650 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 11:30:44,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 11:30:44,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 11:30:44,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-10 11:30:44,670 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 5 states. [2018-10-10 11:30:45,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:30:45,589 INFO L93 Difference]: Finished difference Result 100 states and 119 transitions. [2018-10-10 11:30:45,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-10 11:30:45,592 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2018-10-10 11:30:45,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:30:45,604 INFO L225 Difference]: With dead ends: 100 [2018-10-10 11:30:45,604 INFO L226 Difference]: Without dead ends: 98 [2018-10-10 11:30:45,606 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-10-10 11:30:45,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-10-10 11:30:45,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 59. [2018-10-10 11:30:45,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-10-10 11:30:45,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 72 transitions. [2018-10-10 11:30:45,646 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 72 transitions. Word has length 7 [2018-10-10 11:30:45,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:30:45,646 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 72 transitions. [2018-10-10 11:30:45,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 11:30:45,647 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 72 transitions. [2018-10-10 11:30:45,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-10 11:30:45,647 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:30:45,648 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:30:45,648 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:30:45,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:30:45,649 INFO L82 PathProgramCache]: Analyzing trace with hash 149953326, now seen corresponding path program 1 times [2018-10-10 11:30:45,650 INFO L227 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-10 11:30:45,651 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-10 11:30:45,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:30:45,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:30:45,723 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 11:30:45,738 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 [2018-10-10 11:30:45,739 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 11:30:45,755 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 [2018-10-10 11:30:45,756 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-10 11:30:45,768 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 11:30:45,769 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-10-10 11:30:45,819 INFO L700 Elim1Store]: detected not equals via solver [2018-10-10 11:30:45,825 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-10-10 11:30:45,827 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 11:30:45,862 INFO L700 Elim1Store]: detected not equals via solver [2018-10-10 11:30:45,882 INFO L700 Elim1Store]: detected not equals via solver [2018-10-10 11:30:45,883 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-10-10 11:30:45,884 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-10 11:30:45,915 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 11:30:45,916 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-10-10 11:30:46,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:30:46,017 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-10 11:30:46,028 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:30:46,028 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 11:30:46,030 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 11:30:46,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 11:30:46,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-10 11:30:46,031 INFO L87 Difference]: Start difference. First operand 59 states and 72 transitions. Second operand 5 states. [2018-10-10 11:30:46,330 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-10-10 11:30:46,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:30:46,947 INFO L93 Difference]: Finished difference Result 138 states and 158 transitions. [2018-10-10 11:30:46,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-10 11:30:46,948 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2018-10-10 11:30:46,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:30:46,951 INFO L225 Difference]: With dead ends: 138 [2018-10-10 11:30:46,952 INFO L226 Difference]: Without dead ends: 138 [2018-10-10 11:30:46,953 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-10-10 11:30:46,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-10-10 11:30:46,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 63. [2018-10-10 11:30:46,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-10-10 11:30:46,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 77 transitions. [2018-10-10 11:30:46,963 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 77 transitions. Word has length 8 [2018-10-10 11:30:46,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:30:46,964 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 77 transitions. [2018-10-10 11:30:46,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 11:30:46,964 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 77 transitions. [2018-10-10 11:30:46,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-10 11:30:46,965 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:30:46,965 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:30:46,966 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:30:46,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:30:46,966 INFO L82 PathProgramCache]: Analyzing trace with hash 350695144, now seen corresponding path program 1 times [2018-10-10 11:30:46,967 INFO L227 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-10 11:30:46,967 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-10 11:30:46,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:30:47,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:30:47,012 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 11:30:47,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:30:47,051 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-10 11:30:47,056 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:30:47,056 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 11:30:47,057 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 11:30:47,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 11:30:47,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 11:30:47,058 INFO L87 Difference]: Start difference. First operand 63 states and 77 transitions. Second operand 3 states. [2018-10-10 11:30:47,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:30:47,104 INFO L93 Difference]: Finished difference Result 76 states and 84 transitions. [2018-10-10 11:30:47,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 11:30:47,107 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-10-10 11:30:47,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:30:47,108 INFO L225 Difference]: With dead ends: 76 [2018-10-10 11:30:47,108 INFO L226 Difference]: Without dead ends: 76 [2018-10-10 11:30:47,109 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 11:30:47,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-10-10 11:30:47,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 56. [2018-10-10 11:30:47,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-10-10 11:30:47,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions. [2018-10-10 11:30:47,115 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 9 [2018-10-10 11:30:47,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:30:47,115 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions. [2018-10-10 11:30:47,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 11:30:47,116 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2018-10-10 11:30:47,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-10 11:30:47,116 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:30:47,116 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:30:47,117 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:30:47,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:30:47,117 INFO L82 PathProgramCache]: Analyzing trace with hash 353585866, now seen corresponding path program 1 times [2018-10-10 11:30:47,118 INFO L227 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-10 11:30:47,118 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-10 11:30:47,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:30:47,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:30:47,178 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 11:30:47,187 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 [2018-10-10 11:30:47,187 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-10 11:30:47,193 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-10 11:30:47,193 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-10-10 11:30:47,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:30:47,237 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-10 11:30:47,239 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:30:47,239 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 11:30:47,239 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 11:30:47,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 11:30:47,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-10 11:30:47,240 INFO L87 Difference]: Start difference. First operand 56 states and 65 transitions. Second operand 4 states. [2018-10-10 11:30:47,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:30:47,486 INFO L93 Difference]: Finished difference Result 66 states and 76 transitions. [2018-10-10 11:30:47,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 11:30:47,492 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-10-10 11:30:47,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:30:47,493 INFO L225 Difference]: With dead ends: 66 [2018-10-10 11:30:47,493 INFO L226 Difference]: Without dead ends: 66 [2018-10-10 11:30:47,494 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-10 11:30:47,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-10-10 11:30:47,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 55. [2018-10-10 11:30:47,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-10-10 11:30:47,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 63 transitions. [2018-10-10 11:30:47,499 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 63 transitions. Word has length 9 [2018-10-10 11:30:47,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:30:47,499 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 63 transitions. [2018-10-10 11:30:47,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 11:30:47,500 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 63 transitions. [2018-10-10 11:30:47,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-10 11:30:47,500 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:30:47,500 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:30:47,501 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:30:47,501 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:30:47,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1925215536, now seen corresponding path program 1 times [2018-10-10 11:30:47,502 INFO L227 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-10 11:30:47,502 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-10 11:30:47,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:30:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 11:30:47,560 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 11:30:47,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 11:30:47,617 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-10 11:30:47,625 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 11:30:47,625 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 11:30:47,626 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 11:30:47,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 11:30:47,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-10 11:30:47,627 INFO L87 Difference]: Start difference. First operand 55 states and 63 transitions. Second operand 4 states. [2018-10-10 11:30:47,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 11:30:47,762 INFO L93 Difference]: Finished difference Result 78 states and 85 transitions. [2018-10-10 11:30:47,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 11:30:47,763 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-10-10 11:30:47,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 11:30:47,764 INFO L225 Difference]: With dead ends: 78 [2018-10-10 11:30:47,764 INFO L226 Difference]: Without dead ends: 78 [2018-10-10 11:30:47,765 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-10 11:30:47,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-10-10 11:30:47,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 55. [2018-10-10 11:30:47,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-10-10 11:30:47,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2018-10-10 11:30:47,770 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 10 [2018-10-10 11:30:47,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 11:30:47,777 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2018-10-10 11:30:47,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 11:30:47,777 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2018-10-10 11:30:47,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-10 11:30:47,779 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 11:30:47,779 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 11:30:47,780 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 11:30:47,780 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 11:30:47,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1923739984, now seen corresponding path program 1 times [2018-10-10 11:30:47,780 INFO L227 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-10 11:30:47,780 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-10 11:30:47,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 11:30:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-10 11:30:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-10 11:30:47,953 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-10 11:30:47,970 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 11:30:47,971 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 11:30:47,972 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 11:30:47,972 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 11:30:47,973 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 11:30:47,973 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 11:30:47,974 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 11:30:47,974 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 11:30:47,974 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 11:30:47,975 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 11:30:47,975 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 11:30:47,976 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 11:30:47,976 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 11:30:47,977 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 11:30:47,977 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 11:30:47,977 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 11:30:47,978 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 11:30:47,978 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-10 11:30:47,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 11:30:47 BoogieIcfgContainer [2018-10-10 11:30:47,992 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 11:30:47,993 INFO L168 Benchmark]: Toolchain (without parser) took 5027.87 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 718.3 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -554.5 MB). Peak memory consumption was 163.8 MB. Max. memory is 7.1 GB. [2018-10-10 11:30:47,995 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 11:30:47,996 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.33 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-10 11:30:47,996 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.56 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 11:30:47,997 INFO L168 Benchmark]: Boogie Preprocessor took 36.78 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 11:30:47,998 INFO L168 Benchmark]: RCFGBuilder took 789.39 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 718.3 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -750.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. [2018-10-10 11:30:47,999 INFO L168 Benchmark]: TraceAbstraction took 3833.17 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 185.4 MB). Peak memory consumption was 185.4 MB. Max. memory is 7.1 GB. [2018-10-10 11:30:48,003 INFO L336 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 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 308.33 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.56 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 36.78 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 789.39 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 718.3 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -750.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3833.17 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 185.4 MB). Peak memory consumption was 185.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L32] int i, b[100]; [L32] RET int i, b[100]; [L33] i = 0 [L33] COND TRUE i < 100 [L34] CALL foo(i, b, i + 1) [L21] CALL int a[n], i; [L21] RET int a[n], i; [L22] i = 0 [L22] COND TRUE i < size [L23] CALL, EXPR b[i] [L23] RET, EXPR b[i] [L23] CALL a[i] = b[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 46 locations, 11 error locations. UNSAFE Result, 3.7s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 215 SDtfs, 373 SDslu, 284 SDs, 0 SdLazy, 348 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 168 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 1384 SizeOfPredicates, 32 NumberOfNonLiveVariables, 226 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...