java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label20_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 19:41:21,216 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 19:41:21,219 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 19:41:21,231 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 19:41:21,232 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 19:41:21,233 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 19:41:21,234 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 19:41:21,236 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 19:41:21,238 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 19:41:21,239 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 19:41:21,240 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 19:41:21,240 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 19:41:21,241 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 19:41:21,242 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 19:41:21,243 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 19:41:21,244 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 19:41:21,245 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 19:41:21,247 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 19:41:21,249 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 19:41:21,250 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 19:41:21,251 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 19:41:21,253 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 19:41:21,255 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 19:41:21,262 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 19:41:21,263 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 19:41:21,264 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 19:41:21,265 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 19:41:21,265 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 19:41:21,293 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 19:41:21,293 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 19:41:21,297 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 19:41:21,297 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 19:41:21,297 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 19:41:21,297 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 19:41:21,300 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 19:41:21,301 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 19:41:21,301 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 19:41:21,301 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 19:41:21,301 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 19:41:21,302 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 19:41:21,303 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 19:41:21,303 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 19:41:21,303 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 19:41:21,303 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 19:41:21,304 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 19:41:21,304 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 19:41:21,304 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 19:41:21,304 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 19:41:21,305 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 19:41:21,305 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 19:41:21,305 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 19:41:21,305 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 19:41:21,305 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:41:21,305 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 19:41:21,307 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 19:41:21,308 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 19:41:21,308 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 19:41:21,308 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 19:41:21,308 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 19:41:21,308 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 19:41:21,309 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 19:41:21,309 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 19:41:21,377 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 19:41:21,395 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 19:41:21,399 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 19:41:21,401 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 19:41:21,402 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 19:41:21,402 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label20_true-unreach-call.c [2018-10-24 19:41:21,468 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1fae7611b/d953bec031094a5f9ae94bdbc669f43f/FLAG33b5373f2 [2018-10-24 19:41:22,152 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 19:41:22,153 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label20_true-unreach-call.c [2018-10-24 19:41:22,179 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1fae7611b/d953bec031094a5f9ae94bdbc669f43f/FLAG33b5373f2 [2018-10-24 19:41:22,201 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1fae7611b/d953bec031094a5f9ae94bdbc669f43f [2018-10-24 19:41:22,219 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 19:41:22,222 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 19:41:22,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 19:41:22,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 19:41:22,232 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 19:41:22,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:41:22" (1/1) ... [2018-10-24 19:41:22,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32a881f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:41:22, skipping insertion in model container [2018-10-24 19:41:22,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:41:22" (1/1) ... [2018-10-24 19:41:22,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 19:41:22,362 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 19:41:23,155 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:41:23,161 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 19:41:23,538 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:41:23,562 INFO L193 MainTranslator]: Completed translation [2018-10-24 19:41:23,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:41:23 WrapperNode [2018-10-24 19:41:23,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 19:41:23,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 19:41:23,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 19:41:23,565 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 19:41:23,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:41:23" (1/1) ... [2018-10-24 19:41:23,617 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:41:23" (1/1) ... [2018-10-24 19:41:23,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 19:41:23,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 19:41:23,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 19:41:23,931 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 19:41:23,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:41:23" (1/1) ... [2018-10-24 19:41:23,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:41:23" (1/1) ... [2018-10-24 19:41:23,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:41:23" (1/1) ... [2018-10-24 19:41:23,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:41:23" (1/1) ... [2018-10-24 19:41:24,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:41:23" (1/1) ... [2018-10-24 19:41:24,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:41:23" (1/1) ... [2018-10-24 19:41:24,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:41:23" (1/1) ... [2018-10-24 19:41:24,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 19:41:24,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 19:41:24,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 19:41:24,076 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 19:41:24,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:41:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 19:41:24,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 19:41:24,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 19:41:24,151 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 19:41:24,152 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 19:41:24,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 19:41:24,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 19:41:24,152 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 19:41:24,152 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 19:41:29,018 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 19:41:29,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:41:29 BoogieIcfgContainer [2018-10-24 19:41:29,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 19:41:29,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 19:41:29,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 19:41:29,027 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 19:41:29,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:41:22" (1/3) ... [2018-10-24 19:41:29,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372f4a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:41:29, skipping insertion in model container [2018-10-24 19:41:29,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:41:23" (2/3) ... [2018-10-24 19:41:29,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372f4a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:41:29, skipping insertion in model container [2018-10-24 19:41:29,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:41:29" (3/3) ... [2018-10-24 19:41:29,031 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label20_true-unreach-call.c [2018-10-24 19:41:29,043 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 19:41:29,053 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 19:41:29,072 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 19:41:29,114 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 19:41:29,115 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 19:41:29,115 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 19:41:29,115 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 19:41:29,115 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 19:41:29,115 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 19:41:29,115 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 19:41:29,116 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 19:41:29,146 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-24 19:41:29,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-10-24 19:41:29,169 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:41:29,171 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:41:29,174 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:41:29,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:41:29,184 INFO L82 PathProgramCache]: Analyzing trace with hash -775720303, now seen corresponding path program 1 times [2018-10-24 19:41:29,187 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:41:29,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:41:29,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:41:29,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:41:29,246 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:41:29,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:41:30,170 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:41:30,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:41:30,358 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:41:30,358 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 19:41:30,358 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:41:30,371 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 19:41:30,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 19:41:30,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:41:30,395 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2018-10-24 19:41:32,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:41:32,518 INFO L93 Difference]: Finished difference Result 838 states and 1479 transitions. [2018-10-24 19:41:32,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 19:41:32,519 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2018-10-24 19:41:32,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:41:32,543 INFO L225 Difference]: With dead ends: 838 [2018-10-24 19:41:32,543 INFO L226 Difference]: Without dead ends: 524 [2018-10-24 19:41:32,551 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:41:32,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2018-10-24 19:41:32,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 522. [2018-10-24 19:41:32,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2018-10-24 19:41:32,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 890 transitions. [2018-10-24 19:41:32,646 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 890 transitions. Word has length 202 [2018-10-24 19:41:32,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:41:32,647 INFO L481 AbstractCegarLoop]: Abstraction has 522 states and 890 transitions. [2018-10-24 19:41:32,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 19:41:32,648 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 890 transitions. [2018-10-24 19:41:32,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-10-24 19:41:32,658 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:41:32,658 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:41:32,659 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:41:32,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:41:32,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1755738424, now seen corresponding path program 1 times [2018-10-24 19:41:32,660 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:41:32,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:41:32,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:41:32,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:41:32,662 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:41:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:41:33,012 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:41:33,013 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:41:33,013 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:41:33,013 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:41:33,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:41:33,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:41:33,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:41:33,017 INFO L87 Difference]: Start difference. First operand 522 states and 890 transitions. Second operand 6 states. [2018-10-24 19:41:37,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:41:37,265 INFO L93 Difference]: Finished difference Result 1581 states and 2759 transitions. [2018-10-24 19:41:37,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 19:41:37,268 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 212 [2018-10-24 19:41:37,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:41:37,283 INFO L225 Difference]: With dead ends: 1581 [2018-10-24 19:41:37,283 INFO L226 Difference]: Without dead ends: 1065 [2018-10-24 19:41:37,288 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:41:37,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2018-10-24 19:41:37,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1023. [2018-10-24 19:41:37,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1023 states. [2018-10-24 19:41:37,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1733 transitions. [2018-10-24 19:41:37,354 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1733 transitions. Word has length 212 [2018-10-24 19:41:37,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:41:37,354 INFO L481 AbstractCegarLoop]: Abstraction has 1023 states and 1733 transitions. [2018-10-24 19:41:37,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:41:37,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1733 transitions. [2018-10-24 19:41:37,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2018-10-24 19:41:37,364 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:41:37,364 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:41:37,364 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:41:37,366 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:41:37,366 INFO L82 PathProgramCache]: Analyzing trace with hash -548370667, now seen corresponding path program 1 times [2018-10-24 19:41:37,366 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:41:37,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:41:37,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:41:37,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:41:37,368 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:41:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:41:37,786 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:41:37,786 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:41:37,787 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 19:41:37,788 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:41:37,789 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 19:41:37,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 19:41:37,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:41:37,790 INFO L87 Difference]: Start difference. First operand 1023 states and 1733 transitions. Second operand 3 states. [2018-10-24 19:41:40,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:41:40,972 INFO L93 Difference]: Finished difference Result 2903 states and 5102 transitions. [2018-10-24 19:41:40,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 19:41:40,979 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 215 [2018-10-24 19:41:40,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:41:40,999 INFO L225 Difference]: With dead ends: 2903 [2018-10-24 19:41:40,999 INFO L226 Difference]: Without dead ends: 1886 [2018-10-24 19:41:41,008 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:41:41,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1886 states. [2018-10-24 19:41:41,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1886 to 1866. [2018-10-24 19:41:41,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1866 states. [2018-10-24 19:41:41,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1866 states to 1866 states and 3136 transitions. [2018-10-24 19:41:41,088 INFO L78 Accepts]: Start accepts. Automaton has 1866 states and 3136 transitions. Word has length 215 [2018-10-24 19:41:41,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:41:41,089 INFO L481 AbstractCegarLoop]: Abstraction has 1866 states and 3136 transitions. [2018-10-24 19:41:41,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 19:41:41,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1866 states and 3136 transitions. [2018-10-24 19:41:41,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-10-24 19:41:41,101 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:41:41,101 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:41:41,101 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:41:41,102 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:41:41,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1747135276, now seen corresponding path program 1 times [2018-10-24 19:41:41,102 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:41:41,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:41:41,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:41:41,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:41:41,104 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:41:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:41:41,388 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:41:41,389 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:41:41,389 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:41:41,390 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 234 with the following transitions: [2018-10-24 19:41:41,394 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [28], [29], [33], [37], [41], [45], [48], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1077], [1079], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-24 19:41:41,523 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:41:41,524 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-10-24 19:45:56,019 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-24 19:45:56,020 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-24 19:45:56,022 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-24 19:45:56,022 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:45:56,022 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 19:45:56,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:45:56,036 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 19:45:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:45:56,321 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 19:45:56,361 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-24 19:45:56,563 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 19:45:56,563 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 19:45:56,571 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 19:45:56,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:45:56 BoogieIcfgContainer [2018-10-24 19:45:56,572 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 19:45:56,573 INFO L168 Benchmark]: Toolchain (without parser) took 274352.61 ms. Allocated memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: 1.3 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -795.2 MB). Peak memory consumption was 550.6 MB. Max. memory is 7.1 GB. [2018-10-24 19:45:56,579 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-10-24 19:45:56,580 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1340.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-10-24 19:45:56,583 INFO L168 Benchmark]: Boogie Procedure Inliner took 365.16 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 716.2 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -839.3 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. [2018-10-24 19:45:56,584 INFO L168 Benchmark]: Boogie Preprocessor took 144.66 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2018-10-24 19:45:56,585 INFO L168 Benchmark]: RCFGBuilder took 4944.65 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 260.4 MB). Peak memory consumption was 260.4 MB. Max. memory is 7.1 GB. [2018-10-24 19:45:56,591 INFO L168 Benchmark]: TraceAbstraction took 267550.76 ms. Allocated memory was 2.2 GB in the beginning and 2.8 GB in the end (delta: 629.7 MB). Free memory was 1.9 GB in the beginning and 2.2 GB in the end (delta: -304.9 MB). Peak memory consumption was 324.7 MB. Max. memory is 7.1 GB. [2018-10-24 19:45:56,604 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 1340.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 365.16 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 716.2 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -839.3 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 144.66 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4944.65 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 260.4 MB). Peak memory consumption was 260.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 267550.76 ms. Allocated memory was 2.2 GB in the beginning and 2.8 GB in the end (delta: 629.7 MB). Free memory was 1.9 GB in the beginning and 2.2 GB in the end (delta: -304.9 MB). Peak memory consumption was 324.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1620]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1620). Cancelled while BasicCegarLoop was analyzing trace of length 234 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 267.4s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 9.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 887 SDtfs, 1386 SDslu, 420 SDs, 0 SdLazy, 2726 SolverSat, 514 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1866occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 254.6s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 64 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 629 NumberOfCodeBlocks, 629 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 626 ConstructedInterpolants, 0 QuantifiedInterpolants, 346220 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 17/17 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown