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/Problem16_label05_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:44:11,160 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:44:11,163 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:44:11,180 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:44:11,181 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:44:11,184 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:44:11,185 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:44:11,189 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:44:11,191 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:44:11,192 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:44:11,201 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:44:11,202 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:44:11,202 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:44:11,203 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:44:11,206 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:44:11,207 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:44:11,208 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:44:11,212 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:44:11,217 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:44:11,219 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:44:11,221 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:44:11,222 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:44:11,224 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 18:44:11,224 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 18:44:11,224 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 18:44:11,225 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 18:44:11,226 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 18:44:11,227 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 18:44:11,228 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 18:44:11,229 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 18:44:11,229 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 18:44:11,229 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 18:44:11,230 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 18:44:11,230 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 18:44:11,231 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 18:44:11,231 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 18:44:11,232 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 18:44:11,248 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:44:11,248 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:44:11,249 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:44:11,249 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:44:11,249 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:44:11,249 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:44:11,250 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:44:11,250 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:44:11,250 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:44:11,250 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:44:11,250 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:44:11,251 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:44:11,251 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:44:11,252 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:44:11,252 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:44:11,252 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:44:11,252 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:44:11,252 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:44:11,253 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:44:11,253 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:44:11,253 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:44:11,253 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:44:11,253 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:44:11,254 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:44:11,254 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:44:11,254 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:44:11,254 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:44:11,254 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:44:11,255 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:44:11,255 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:44:11,255 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:44:11,255 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:44:11,255 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:44:11,256 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:44:11,299 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:44:11,312 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:44:11,316 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:44:11,318 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:44:11,318 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:44:11,319 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label05_false-unreach-call.c [2018-10-24 18:44:11,389 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/99c6bf216/685e550cabff4c98acc52c5387afc23c/FLAG6d758f58f [2018-10-24 18:44:12,071 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:44:12,072 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label05_false-unreach-call.c [2018-10-24 18:44:12,096 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/99c6bf216/685e550cabff4c98acc52c5387afc23c/FLAG6d758f58f [2018-10-24 18:44:12,116 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/99c6bf216/685e550cabff4c98acc52c5387afc23c [2018-10-24 18:44:12,127 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:44:12,128 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:44:12,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:44:12,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:44:12,133 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:44:12,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:44:12" (1/1) ... [2018-10-24 18:44:12,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa98528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:12, skipping insertion in model container [2018-10-24 18:44:12,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:44:12" (1/1) ... [2018-10-24 18:44:12,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:44:12,231 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:44:12,985 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:44:12,990 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:44:13,306 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:44:13,328 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:44:13,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:13 WrapperNode [2018-10-24 18:44:13,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:44:13,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:44:13,330 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:44:13,330 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:44:13,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:13" (1/1) ... [2018-10-24 18:44:13,376 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:13" (1/1) ... [2018-10-24 18:44:13,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:44:13,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:44:13,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:44:13,688 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:44:13,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:13" (1/1) ... [2018-10-24 18:44:13,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:13" (1/1) ... [2018-10-24 18:44:13,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:13" (1/1) ... [2018-10-24 18:44:13,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:13" (1/1) ... [2018-10-24 18:44:13,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:13" (1/1) ... [2018-10-24 18:44:13,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:13" (1/1) ... [2018-10-24 18:44:13,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:13" (1/1) ... [2018-10-24 18:44:13,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:44:13,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:44:13,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:44:13,898 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:44:13,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:13" (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 18:44:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:44:13,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:44:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:44:13,973 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:44:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:44:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:44:13,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:44:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:44:13,974 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:44:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:44:20,210 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:44:20,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:44:20 BoogieIcfgContainer [2018-10-24 18:44:20,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:44:20,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:44:20,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:44:20,220 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:44:20,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:44:12" (1/3) ... [2018-10-24 18:44:20,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f095bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:44:20, skipping insertion in model container [2018-10-24 18:44:20,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:13" (2/3) ... [2018-10-24 18:44:20,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f095bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:44:20, skipping insertion in model container [2018-10-24 18:44:20,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:44:20" (3/3) ... [2018-10-24 18:44:20,224 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label05_false-unreach-call.c [2018-10-24 18:44:20,232 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:44:20,241 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:44:20,259 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:44:20,301 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:44:20,302 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:44:20,302 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:44:20,302 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:44:20,302 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:44:20,302 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:44:20,303 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:44:20,303 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:44:20,338 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-10-24 18:44:20,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-24 18:44:20,346 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:44:20,347 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] [2018-10-24 18:44:20,349 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:44:20,354 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:44:20,355 INFO L82 PathProgramCache]: Analyzing trace with hash -397266572, now seen corresponding path program 1 times [2018-10-24 18:44:20,357 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:44:20,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:44:20,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:44:20,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:44:20,409 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:44:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:44:20,790 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:44:20,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:44:20,908 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:44:20,908 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 18:44:20,909 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:44:20,914 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 18:44:20,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 18:44:20,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:44:20,935 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-10-24 18:44:24,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:44:24,823 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-10-24 18:44:24,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 18:44:24,826 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-10-24 18:44:24,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:44:24,849 INFO L225 Difference]: With dead ends: 1156 [2018-10-24 18:44:24,850 INFO L226 Difference]: Without dead ends: 744 [2018-10-24 18:44:24,859 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 18:44:24,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-10-24 18:44:24,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-10-24 18:44:24,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-10-24 18:44:24,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1317 transitions. [2018-10-24 18:44:24,968 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1317 transitions. Word has length 26 [2018-10-24 18:44:24,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:44:24,968 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 1317 transitions. [2018-10-24 18:44:24,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 18:44:24,969 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1317 transitions. [2018-10-24 18:44:24,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-10-24 18:44:24,975 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:44:24,975 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 18:44:24,975 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:44:24,976 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:44:24,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1302498186, now seen corresponding path program 1 times [2018-10-24 18:44:24,976 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:44:24,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:44:24,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:44:24,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:44:24,978 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:44:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:44:25,359 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:44:25,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:44:25,360 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:44:25,360 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:44:25,362 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:44:25,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:44:25,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:44:25,363 INFO L87 Difference]: Start difference. First operand 744 states and 1317 transitions. Second operand 6 states. [2018-10-24 18:44:31,266 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-24 18:44:39,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:44:39,836 INFO L93 Difference]: Finished difference Result 2959 states and 5492 transitions. [2018-10-24 18:44:39,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 18:44:39,836 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2018-10-24 18:44:39,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:44:39,863 INFO L225 Difference]: With dead ends: 2959 [2018-10-24 18:44:39,864 INFO L226 Difference]: Without dead ends: 2221 [2018-10-24 18:44:39,879 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 18:44:39,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2221 states. [2018-10-24 18:44:39,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2221 to 2170. [2018-10-24 18:44:39,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2170 states. [2018-10-24 18:44:40,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 3670 transitions. [2018-10-24 18:44:40,009 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 3670 transitions. Word has length 102 [2018-10-24 18:44:40,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:44:40,009 INFO L481 AbstractCegarLoop]: Abstraction has 2170 states and 3670 transitions. [2018-10-24 18:44:40,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:44:40,010 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 3670 transitions. [2018-10-24 18:44:40,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-10-24 18:44:40,028 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:44:40,028 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:44:40,028 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:44:40,029 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:44:40,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1630396896, now seen corresponding path program 1 times [2018-10-24 18:44:40,029 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:44:40,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:44:40,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:44:40,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:44:40,031 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:44:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:44:40,338 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 38 proven. 75 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 18:44:40,339 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:44:40,339 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:44:40,340 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 191 with the following transitions: [2018-10-24 18:44:40,343 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [287], [289], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [712], [713], [717], [721], [725], [728], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-24 18:44:40,411 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:44:40,411 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:44:42,278 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:44:42,360 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:44:42,362 INFO L272 AbstractInterpreter]: Visited 89 different actions 89 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 18:44:42,389 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:44:42,389 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:44:44,126 INFO L232 lantSequenceWeakener]: Weakened 182 states. On average, predicates are now at 77.58% of their original sizes. [2018-10-24 18:44:44,126 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:44:44,446 INFO L413 sIntCurrentIteration]: We have 189 unified AI predicates [2018-10-24 18:44:44,446 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:44:44,447 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:44:44,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 18:44:44,447 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:44:44,448 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 18:44:44,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 18:44:44,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 18:44:44,449 INFO L87 Difference]: Start difference. First operand 2170 states and 3670 transitions. Second operand 7 states. [2018-10-24 18:45:35,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:45:35,910 INFO L93 Difference]: Finished difference Result 4674 states and 7864 transitions. [2018-10-24 18:45:35,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:45:35,910 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2018-10-24 18:45:35,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:45:35,926 INFO L225 Difference]: With dead ends: 4674 [2018-10-24 18:45:35,926 INFO L226 Difference]: Without dead ends: 2510 [2018-10-24 18:45:35,940 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 190 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:45:35,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2510 states. [2018-10-24 18:45:36,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2510 to 2508. [2018-10-24 18:45:36,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2508 states. [2018-10-24 18:45:36,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2508 states to 2508 states and 4017 transitions. [2018-10-24 18:45:36,048 INFO L78 Accepts]: Start accepts. Automaton has 2508 states and 4017 transitions. Word has length 190 [2018-10-24 18:45:36,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:45:36,049 INFO L481 AbstractCegarLoop]: Abstraction has 2508 states and 4017 transitions. [2018-10-24 18:45:36,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 18:45:36,049 INFO L276 IsEmpty]: Start isEmpty. Operand 2508 states and 4017 transitions. [2018-10-24 18:45:36,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-10-24 18:45:36,052 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:45:36,053 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 18:45:36,053 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:45:36,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:45:36,054 INFO L82 PathProgramCache]: Analyzing trace with hash 240529864, now seen corresponding path program 1 times [2018-10-24 18:45:36,056 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:45:36,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:45:36,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:45:36,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:45:36,057 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:45:36,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:45:36,425 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:45:36,904 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 39 proven. 14 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-10-24 18:45:36,905 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:45:36,905 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:45:36,905 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 203 with the following transitions: [2018-10-24 18:45:36,906 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [287], [289], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [728], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-24 18:45:36,911 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:45:36,911 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:45:37,932 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:45:43,618 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:45:43,618 INFO L272 AbstractInterpreter]: Visited 100 different actions 287 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 18:45:43,622 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:45:43,622 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:45:45,652 INFO L232 lantSequenceWeakener]: Weakened 60 states. On average, predicates are now at 78.9% of their original sizes. [2018-10-24 18:45:45,652 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:45:59,491 INFO L413 sIntCurrentIteration]: We have 201 unified AI predicates [2018-10-24 18:45:59,492 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:45:59,492 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:45:59,492 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [26] imperfect sequences [6] total 30 [2018-10-24 18:45:59,492 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:45:59,493 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-10-24 18:45:59,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-10-24 18:45:59,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650 [2018-10-24 18:45:59,494 INFO L87 Difference]: Start difference. First operand 2508 states and 4017 transitions. Second operand 26 states. Received shutdown request... [2018-10-24 18:48:07,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-24 18:48:07,554 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:48:07,561 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:48:07,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:48:07 BoogieIcfgContainer [2018-10-24 18:48:07,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:48:07,562 INFO L168 Benchmark]: Toolchain (without parser) took 235434.62 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.9 GB in the end (delta: -2.5 GB). Peak memory consumption was 234.9 MB. Max. memory is 7.1 GB. [2018-10-24 18:48:07,563 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 18:48:07,564 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1199.67 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-24 18:48:07,565 INFO L168 Benchmark]: Boogie Procedure Inliner took 357.36 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 761.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -874.2 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2018-10-24 18:48:07,566 INFO L168 Benchmark]: Boogie Preprocessor took 210.34 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2018-10-24 18:48:07,567 INFO L168 Benchmark]: RCFGBuilder took 6313.93 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 268.2 MB). Peak memory consumption was 268.2 MB. Max. memory is 7.1 GB. [2018-10-24 18:48:07,567 INFO L168 Benchmark]: TraceAbstraction took 227347.08 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 3.9 GB in the end (delta: -2.0 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 18:48:07,573 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1199.67 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 357.36 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 761.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -874.2 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 210.34 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6313.93 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 268.2 MB). Peak memory consumption was 268.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 227347.08 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 3.9 GB in the end (delta: -2.0 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 64). Cancelled while BasicCegarLoop was constructing difference of abstraction (2508states) and FLOYD_HOARE automaton (currently 15 states, 26 states before enhancement),while ReachableStatesComputation was computing reachable states (753 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 227.2s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 198.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 753 SDtfs, 4592 SDslu, 688 SDs, 0 SdLazy, 7367 SolverSat, 1633 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 73.8s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 415 GetRequests, 366 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 18.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2508occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 8.7s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9943887030843551 AbsIntWeakeningRatio, 0.13333333333333333 AbsIntAvgWeakeningVarsNumRemoved, 445.8820512820513 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 53 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 520 NumberOfCodeBlocks, 520 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 516 ConstructedInterpolants, 0 QuantifiedInterpolants, 321529 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 170/259 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown