java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label07_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 02:53:07,099 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 02:53:07,101 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 02:53:07,124 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 02:53:07,124 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 02:53:07,125 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 02:53:07,129 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 02:53:07,131 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 02:53:07,133 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 02:53:07,134 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 02:53:07,135 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 02:53:07,135 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 02:53:07,136 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 02:53:07,137 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 02:53:07,138 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 02:53:07,139 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 02:53:07,140 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 02:53:07,142 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 02:53:07,144 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 02:53:07,146 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 02:53:07,147 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 02:53:07,148 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 02:53:07,151 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 02:53:07,151 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 02:53:07,152 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 02:53:07,153 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 02:53:07,154 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 02:53:07,154 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 02:53:07,155 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 02:53:07,156 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 02:53:07,157 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 02:53:07,157 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 02:53:07,158 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 02:53:07,158 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 02:53:07,159 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 02:53:07,160 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 02:53:07,160 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 02:53:07,187 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 02:53:07,187 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 02:53:07,188 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 02:53:07,188 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 02:53:07,189 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 02:53:07,189 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 02:53:07,189 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 02:53:07,190 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 02:53:07,190 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 02:53:07,190 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 02:53:07,190 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 02:53:07,190 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 02:53:07,191 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 02:53:07,192 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 02:53:07,192 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 02:53:07,192 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 02:53:07,192 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 02:53:07,192 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 02:53:07,193 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 02:53:07,193 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 02:53:07,193 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 02:53:07,193 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 02:53:07,193 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 02:53:07,193 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 02:53:07,195 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 02:53:07,196 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 02:53:07,196 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 02:53:07,196 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 02:53:07,196 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 02:53:07,196 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 02:53:07,197 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 02:53:07,197 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 02:53:07,197 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 02:53:07,197 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 02:53:07,260 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 02:53:07,278 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 02:53:07,282 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 02:53:07,284 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 02:53:07,284 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 02:53:07,285 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label07_true-unreach-call.c [2018-11-07 02:53:07,359 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55ad49757/3a6c5cf93c354549bbfe952febe6daf8/FLAG4087e1f3a [2018-11-07 02:53:07,971 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 02:53:07,973 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label07_true-unreach-call.c [2018-11-07 02:53:07,992 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55ad49757/3a6c5cf93c354549bbfe952febe6daf8/FLAG4087e1f3a [2018-11-07 02:53:08,014 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55ad49757/3a6c5cf93c354549bbfe952febe6daf8 [2018-11-07 02:53:08,028 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 02:53:08,031 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 02:53:08,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 02:53:08,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 02:53:08,038 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 02:53:08,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:53:08" (1/1) ... [2018-11-07 02:53:08,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a6bed07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:08, skipping insertion in model container [2018-11-07 02:53:08,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:53:08" (1/1) ... [2018-11-07 02:53:08,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 02:53:08,151 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 02:53:08,773 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 02:53:08,778 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 02:53:09,027 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 02:53:09,044 INFO L193 MainTranslator]: Completed translation [2018-11-07 02:53:09,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:09 WrapperNode [2018-11-07 02:53:09,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 02:53:09,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 02:53:09,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 02:53:09,046 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 02:53:09,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:09" (1/1) ... [2018-11-07 02:53:09,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:09" (1/1) ... [2018-11-07 02:53:09,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 02:53:09,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 02:53:09,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 02:53:09,217 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 02:53:09,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:09" (1/1) ... [2018-11-07 02:53:09,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:09" (1/1) ... [2018-11-07 02:53:09,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:09" (1/1) ... [2018-11-07 02:53:09,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:09" (1/1) ... [2018-11-07 02:53:09,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:09" (1/1) ... [2018-11-07 02:53:09,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:09" (1/1) ... [2018-11-07 02:53:09,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:09" (1/1) ... [2018-11-07 02:53:09,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 02:53:09,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 02:53:09,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 02:53:09,362 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 02:53:09,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 02:53:09,456 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 02:53:09,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 02:53:09,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 02:53:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 02:53:09,458 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 02:53:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 02:53:09,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 02:53:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 02:53:09,459 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 02:53:14,573 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 02:53:14,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:53:14 BoogieIcfgContainer [2018-11-07 02:53:14,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 02:53:14,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 02:53:14,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 02:53:14,579 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 02:53:14,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:53:08" (1/3) ... [2018-11-07 02:53:14,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d47dfd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:53:14, skipping insertion in model container [2018-11-07 02:53:14,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:09" (2/3) ... [2018-11-07 02:53:14,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d47dfd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:53:14, skipping insertion in model container [2018-11-07 02:53:14,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:53:14" (3/3) ... [2018-11-07 02:53:14,583 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label07_true-unreach-call.c [2018-11-07 02:53:14,594 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 02:53:14,604 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 02:53:14,621 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 02:53:14,662 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 02:53:14,662 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 02:53:14,662 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 02:53:14,662 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 02:53:14,663 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 02:53:14,663 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 02:53:14,663 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 02:53:14,663 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 02:53:14,693 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-11-07 02:53:14,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-07 02:53:14,701 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:53:14,702 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] [2018-11-07 02:53:14,704 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:53:14,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:53:14,710 INFO L82 PathProgramCache]: Analyzing trace with hash 816116164, now seen corresponding path program 1 times [2018-11-07 02:53:14,712 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:53:14,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:53:14,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:53:14,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:53:14,757 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:53:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:53:15,227 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 5 [2018-11-07 02:53:15,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:53:15,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 02:53:15,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 02:53:15,239 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:53:15,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 02:53:15,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 02:53:15,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 02:53:15,267 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-11-07 02:53:18,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:53:18,807 INFO L93 Difference]: Finished difference Result 985 states and 1761 transitions. [2018-11-07 02:53:18,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 02:53:18,819 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-11-07 02:53:18,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:53:18,842 INFO L225 Difference]: With dead ends: 985 [2018-11-07 02:53:18,843 INFO L226 Difference]: Without dead ends: 686 [2018-11-07 02:53:18,852 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 02:53:18,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2018-11-07 02:53:18,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 686. [2018-11-07 02:53:18,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 686 states. [2018-11-07 02:53:18,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1046 transitions. [2018-11-07 02:53:18,956 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1046 transitions. Word has length 30 [2018-11-07 02:53:18,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:53:18,957 INFO L480 AbstractCegarLoop]: Abstraction has 686 states and 1046 transitions. [2018-11-07 02:53:18,957 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 02:53:18,957 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1046 transitions. [2018-11-07 02:53:18,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-11-07 02:53:18,964 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:53:18,965 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 02:53:18,965 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:53:18,965 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:53:18,965 INFO L82 PathProgramCache]: Analyzing trace with hash -348576157, now seen corresponding path program 1 times [2018-11-07 02:53:18,966 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:53:18,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:53:18,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:53:18,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:53:18,968 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:53:19,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:53:19,300 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:53:19,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 02:53:19,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 02:53:19,301 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:53:19,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 02:53:19,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 02:53:19,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-07 02:53:19,304 INFO L87 Difference]: Start difference. First operand 686 states and 1046 transitions. Second operand 6 states. [2018-11-07 02:53:24,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:53:24,426 INFO L93 Difference]: Finished difference Result 2339 states and 3735 transitions. [2018-11-07 02:53:24,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 02:53:24,433 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 111 [2018-11-07 02:53:24,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:53:24,446 INFO L225 Difference]: With dead ends: 2339 [2018-11-07 02:53:24,447 INFO L226 Difference]: Without dead ends: 1659 [2018-11-07 02:53:24,454 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-07 02:53:24,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2018-11-07 02:53:24,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1642. [2018-11-07 02:53:24,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1642 states. [2018-11-07 02:53:24,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2355 transitions. [2018-11-07 02:53:24,548 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2355 transitions. Word has length 111 [2018-11-07 02:53:24,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:53:24,549 INFO L480 AbstractCegarLoop]: Abstraction has 1642 states and 2355 transitions. [2018-11-07 02:53:24,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 02:53:24,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2355 transitions. [2018-11-07 02:53:24,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-11-07 02:53:24,566 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:53:24,566 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 02:53:24,566 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:53:24,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:53:24,567 INFO L82 PathProgramCache]: Analyzing trace with hash -786366209, now seen corresponding path program 1 times [2018-11-07 02:53:24,567 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:53:24,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:53:24,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:53:24,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:53:24,572 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:53:24,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:53:25,516 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:53:25,517 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 02:53:25,517 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 02:53:25,518 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 163 with the following transitions: [2018-11-07 02:53:25,520 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 02:53:25,602 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 02:53:25,602 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 02:53:30,027 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 02:53:48,287 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 02:53:48,289 INFO L272 AbstractInterpreter]: Visited 139 different actions 404 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-07 02:53:48,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:53:48,334 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 02:53:51,686 INFO L227 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 88.46% of their original sizes. [2018-11-07 02:53:51,687 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 02:54:56,780 INFO L415 sIntCurrentIteration]: We unified 161 AI predicates to 161 [2018-11-07 02:54:56,780 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 02:54:56,781 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 02:54:56,781 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [8] total 23 [2018-11-07 02:54:56,781 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:54:56,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-07 02:54:56,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-07 02:54:56,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2018-11-07 02:54:56,786 INFO L87 Difference]: Start difference. First operand 1642 states and 2355 transitions. Second operand 17 states. Received shutdown request... [2018-11-07 02:57:20,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-07 02:57:20,572 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 02:57:20,577 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 02:57:20,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:57:20 BoogieIcfgContainer [2018-11-07 02:57:20,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 02:57:20,578 INFO L168 Benchmark]: Toolchain (without parser) took 252548.42 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -360.1 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-11-07 02:57:20,580 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-11-07 02:57:20,580 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1013.13 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-11-07 02:57:20,585 INFO L168 Benchmark]: Boogie Procedure Inliner took 169.88 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 731.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -837.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2018-11-07 02:57:20,586 INFO L168 Benchmark]: Boogie Preprocessor took 145.28 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 02:57:20,586 INFO L168 Benchmark]: RCFGBuilder took 5212.34 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 187.9 MB). Peak memory consumption was 187.9 MB. Max. memory is 7.1 GB. [2018-11-07 02:57:20,587 INFO L168 Benchmark]: TraceAbstraction took 246002.20 ms. Allocated memory was 2.2 GB in the beginning and 3.7 GB in the end (delta: 1.5 GB). Free memory was 2.0 GB in the beginning and 1.8 GB in the end (delta: 226.1 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-11-07 02:57:20,592 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 1013.13 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 169.88 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 731.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -837.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 145.28 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 5212.34 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 187.9 MB). Peak memory consumption was 187.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 246002.20 ms. Allocated memory was 2.2 GB in the beginning and 3.7 GB in the end (delta: 1.5 GB). Free memory was 2.0 GB in the beginning and 1.8 GB in the end (delta: 226.1 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 75). Cancelled while BasicCegarLoop was constructing difference of abstraction (1642states) and FLOYD_HOARE automaton (currently 18 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (659 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 245.9s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 152.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 345 SDtfs, 2521 SDslu, 365 SDs, 0 SdLazy, 4016 SolverSat, 656 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 46.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 184 GetRequests, 98 SyntacticMatches, 55 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 72.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1642occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 22.8s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9944132242268889 AbsIntWeakeningRatio, 0.14285714285714285 AbsIntAvgWeakeningVarsNumRemoved, 931.8012422360248 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 17 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 303 NumberOfCodeBlocks, 303 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 300 ConstructedInterpolants, 0 QuantifiedInterpolants, 246853 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 40/46 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown