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/Problem10_label08_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 20:55:39,326 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 20:55:39,329 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 20:55:39,345 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 20:55:39,345 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 20:55:39,346 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 20:55:39,347 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 20:55:39,349 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 20:55:39,351 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 20:55:39,352 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 20:55:39,354 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 20:55:39,355 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 20:55:39,356 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 20:55:39,358 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 20:55:39,359 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 20:55:39,365 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 20:55:39,366 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 20:55:39,372 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 20:55:39,376 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 20:55:39,377 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 20:55:39,378 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 20:55:39,382 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 20:55:39,386 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 20:55:39,388 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 20:55:39,388 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 20:55:39,389 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 20:55:39,391 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 20:55:39,392 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 20:55:39,393 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 20:55:39,395 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 20:55:39,395 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 20:55:39,396 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 20:55:39,398 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 20:55:39,398 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 20:55:39,399 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 20:55:39,400 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 20:55:39,400 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 20:55:39,418 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 20:55:39,418 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 20:55:39,419 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 20:55:39,419 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 20:55:39,419 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 20:55:39,421 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 20:55:39,421 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 20:55:39,421 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 20:55:39,421 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 20:55:39,422 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 20:55:39,422 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 20:55:39,422 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 20:55:39,423 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 20:55:39,425 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 20:55:39,425 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 20:55:39,425 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 20:55:39,425 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 20:55:39,426 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 20:55:39,426 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 20:55:39,426 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 20:55:39,426 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 20:55:39,426 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 20:55:39,427 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 20:55:39,427 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 20:55:39,427 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 20:55:39,427 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 20:55:39,427 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 20:55:39,427 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 20:55:39,428 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 20:55:39,428 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 20:55:39,428 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 20:55:39,428 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 20:55:39,428 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 20:55:39,429 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 20:55:39,472 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 20:55:39,486 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 20:55:39,490 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 20:55:39,491 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 20:55:39,492 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 20:55:39,493 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label08_true-unreach-call.c [2018-10-24 20:55:39,557 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f4d4d0f16/1ec0693528b54a9893abe95baa897865/FLAG77393ed6d [2018-10-24 20:55:40,124 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 20:55:40,126 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label08_true-unreach-call.c [2018-10-24 20:55:40,140 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f4d4d0f16/1ec0693528b54a9893abe95baa897865/FLAG77393ed6d [2018-10-24 20:55:40,166 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f4d4d0f16/1ec0693528b54a9893abe95baa897865 [2018-10-24 20:55:40,186 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 20:55:40,188 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 20:55:40,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 20:55:40,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 20:55:40,197 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 20:55:40,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:55:40" (1/1) ... [2018-10-24 20:55:40,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bc341c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:40, skipping insertion in model container [2018-10-24 20:55:40,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:55:40" (1/1) ... [2018-10-24 20:55:40,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 20:55:40,285 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 20:55:40,674 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 20:55:40,679 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 20:55:40,832 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 20:55:40,861 INFO L193 MainTranslator]: Completed translation [2018-10-24 20:55:40,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:40 WrapperNode [2018-10-24 20:55:40,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 20:55:40,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 20:55:40,863 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 20:55:40,863 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 20:55:40,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:40" (1/1) ... [2018-10-24 20:55:40,890 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:40" (1/1) ... [2018-10-24 20:55:41,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 20:55:41,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 20:55:41,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 20:55:41,054 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 20:55:41,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:40" (1/1) ... [2018-10-24 20:55:41,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:40" (1/1) ... [2018-10-24 20:55:41,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:40" (1/1) ... [2018-10-24 20:55:41,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:40" (1/1) ... [2018-10-24 20:55:41,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:40" (1/1) ... [2018-10-24 20:55:41,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:40" (1/1) ... [2018-10-24 20:55:41,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:40" (1/1) ... [2018-10-24 20:55:41,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 20:55:41,160 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 20:55:41,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 20:55:41,161 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 20:55:41,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:40" (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 20:55:41,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 20:55:41,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 20:55:41,238 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 20:55:41,238 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 20:55:41,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 20:55:41,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 20:55:41,240 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 20:55:41,240 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 20:55:44,796 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 20:55:44,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:55:44 BoogieIcfgContainer [2018-10-24 20:55:44,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 20:55:44,806 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 20:55:44,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 20:55:44,809 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 20:55:44,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:55:40" (1/3) ... [2018-10-24 20:55:44,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6c2d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:55:44, skipping insertion in model container [2018-10-24 20:55:44,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:55:40" (2/3) ... [2018-10-24 20:55:44,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b6c2d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:55:44, skipping insertion in model container [2018-10-24 20:55:44,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:55:44" (3/3) ... [2018-10-24 20:55:44,815 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label08_true-unreach-call.c [2018-10-24 20:55:44,826 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 20:55:44,846 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 20:55:44,867 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 20:55:44,926 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 20:55:44,926 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 20:55:44,926 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 20:55:44,927 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 20:55:44,927 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 20:55:44,927 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 20:55:44,927 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 20:55:44,928 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 20:55:44,964 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-24 20:55:44,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-10-24 20:55:44,973 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 20:55:44,974 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] [2018-10-24 20:55:44,977 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 20:55:44,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:55:44,983 INFO L82 PathProgramCache]: Analyzing trace with hash -247440047, now seen corresponding path program 1 times [2018-10-24 20:55:44,985 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 20:55:45,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:55:45,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 20:55:45,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:55:45,031 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 20:55:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 20:55:45,432 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 20:55:45,546 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 20:55:45,548 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 20:55:45,549 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 20:55:45,549 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 20:55:45,556 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 20:55:45,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 20:55:45,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 20:55:45,575 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-10-24 20:55:47,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 20:55:47,140 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-10-24 20:55:47,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 20:55:47,144 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-10-24 20:55:47,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 20:55:47,163 INFO L225 Difference]: With dead ends: 574 [2018-10-24 20:55:47,163 INFO L226 Difference]: Without dead ends: 356 [2018-10-24 20:55:47,173 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 20:55:47,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-10-24 20:55:47,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-10-24 20:55:47,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-10-24 20:55:47,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 612 transitions. [2018-10-24 20:55:47,293 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 612 transitions. Word has length 47 [2018-10-24 20:55:47,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 20:55:47,294 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 612 transitions. [2018-10-24 20:55:47,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 20:55:47,295 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 612 transitions. [2018-10-24 20:55:47,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-10-24 20:55:47,311 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 20:55:47,311 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, 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] [2018-10-24 20:55:47,312 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 20:55:47,312 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:55:47,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1218234717, now seen corresponding path program 1 times [2018-10-24 20:55:47,312 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 20:55:47,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:55:47,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 20:55:47,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:55:47,316 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 20:55:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 20:55:47,736 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-24 20:55:47,736 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 20:55:47,736 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 20:55:47,738 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 119 with the following transitions: [2018-10-24 20:55:47,740 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [277], [279], [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], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 20:55:47,812 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 20:55:47,812 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 20:55:50,000 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 20:55:54,159 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 20:55:54,161 INFO L272 AbstractInterpreter]: Visited 78 different actions 222 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 20:55:54,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:55:54,182 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 20:55:55,633 INFO L232 lantSequenceWeakener]: Weakened 47 states. On average, predicates are now at 76.89% of their original sizes. [2018-10-24 20:55:55,633 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 20:55:58,674 INFO L413 sIntCurrentIteration]: We have 117 unified AI predicates [2018-10-24 20:55:58,675 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 20:55:58,675 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 20:55:58,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [4] total 18 [2018-10-24 20:55:58,676 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 20:55:58,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-24 20:55:58,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-24 20:55:58,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-10-24 20:55:58,679 INFO L87 Difference]: Start difference. First operand 356 states and 612 transitions. Second operand 16 states. [2018-10-24 20:57:18,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 20:57:18,543 INFO L93 Difference]: Finished difference Result 1154 states and 2059 transitions. [2018-10-24 20:57:18,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-24 20:57:18,544 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 118 [2018-10-24 20:57:18,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 20:57:18,550 INFO L225 Difference]: With dead ends: 1154 [2018-10-24 20:57:18,550 INFO L226 Difference]: Without dead ends: 804 [2018-10-24 20:57:18,554 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 127 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=133, Invalid=517, Unknown=0, NotChecked=0, Total=650 [2018-10-24 20:57:18,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2018-10-24 20:57:18,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 793. [2018-10-24 20:57:18,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 793 states. [2018-10-24 20:57:18,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1079 transitions. [2018-10-24 20:57:18,638 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1079 transitions. Word has length 118 [2018-10-24 20:57:18,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 20:57:18,639 INFO L481 AbstractCegarLoop]: Abstraction has 793 states and 1079 transitions. [2018-10-24 20:57:18,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-24 20:57:18,639 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1079 transitions. [2018-10-24 20:57:18,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-10-24 20:57:18,646 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 20:57:18,646 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 20:57:18,646 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 20:57:18,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:57:18,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1202333722, now seen corresponding path program 1 times [2018-10-24 20:57:18,647 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 20:57:18,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:57:18,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 20:57:18,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:57:18,649 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 20:57:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 20:57:18,876 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-10-24 20:57:18,876 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 20:57:18,876 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 20:57:18,877 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 195 with the following transitions: [2018-10-24 20:57:18,877 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [277], [279], [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], [498], [499], [503], [507], [511], [515], [518], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 20:57:18,882 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 20:57:18,883 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 20:57:20,198 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 20:57:26,408 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 20:57:26,408 INFO L272 AbstractInterpreter]: Visited 84 different actions 324 times. Merged at 7 different actions 21 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-10-24 20:57:26,412 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:57:26,412 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 20:57:28,303 INFO L232 lantSequenceWeakener]: Weakened 38 states. On average, predicates are now at 77.6% of their original sizes. [2018-10-24 20:57:28,303 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 20:57:37,595 INFO L413 sIntCurrentIteration]: We have 193 unified AI predicates [2018-10-24 20:57:37,596 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 20:57:37,596 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 20:57:37,596 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [4] total 16 [2018-10-24 20:57:37,596 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 20:57:37,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-24 20:57:37,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-24 20:57:37,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-10-24 20:57:37,598 INFO L87 Difference]: Start difference. First operand 793 states and 1079 transitions. Second operand 14 states. [2018-10-24 20:59:15,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 20:59:15,639 INFO L93 Difference]: Finished difference Result 2196 states and 3263 transitions. [2018-10-24 20:59:15,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-24 20:59:15,639 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 194 [2018-10-24 20:59:15,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 20:59:15,648 INFO L225 Difference]: With dead ends: 2196 [2018-10-24 20:59:15,648 INFO L226 Difference]: Without dead ends: 1553 [2018-10-24 20:59:15,651 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 199 GetRequests, 170 SyntacticMatches, 11 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2018-10-24 20:59:15,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2018-10-24 20:59:15,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1542. [2018-10-24 20:59:15,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1542 states. [2018-10-24 20:59:15,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 1892 transitions. [2018-10-24 20:59:15,799 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 1892 transitions. Word has length 194 [2018-10-24 20:59:15,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 20:59:15,800 INFO L481 AbstractCegarLoop]: Abstraction has 1542 states and 1892 transitions. [2018-10-24 20:59:15,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-24 20:59:15,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 1892 transitions. [2018-10-24 20:59:15,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-10-24 20:59:15,804 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 20:59:15,805 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 20:59:15,805 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 20:59:15,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:59:15,806 INFO L82 PathProgramCache]: Analyzing trace with hash 2129360251, now seen corresponding path program 1 times [2018-10-24 20:59:15,806 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 20:59:15,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:59:15,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 20:59:15,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:59:15,807 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 20:59:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 20:59:16,327 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 152 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 20:59:16,327 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 20:59:16,327 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 20:59:16,327 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 202 with the following transitions: [2018-10-24 20:59:16,328 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [277], [279], [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], [510], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 20:59:16,332 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 20:59:16,332 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 20:59:17,811 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 20:59:26,699 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 20:59:26,699 INFO L272 AbstractInterpreter]: Visited 88 different actions 498 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 20:59:26,703 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:59:26,704 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 20:59:28,412 INFO L232 lantSequenceWeakener]: Weakened 70 states. On average, predicates are now at 74.35% of their original sizes. [2018-10-24 20:59:28,412 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 20:59:30,346 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 20:59:30,349 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 20:59:30,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 08:59:30 BoogieIcfgContainer [2018-10-24 20:59:30,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 20:59:30,351 INFO L168 Benchmark]: Toolchain (without parser) took 230163.63 ms. Allocated memory was 1.6 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 2.1 GB in the end (delta: -666.6 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-24 20:59:30,357 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 20:59:30,357 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.45 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-24 20:59:30,359 INFO L168 Benchmark]: Boogie Procedure Inliner took 190.87 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 763.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -837.6 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2018-10-24 20:59:30,360 INFO L168 Benchmark]: Boogie Preprocessor took 106.17 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 20:59:30,361 INFO L168 Benchmark]: RCFGBuilder took 3642.76 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 129.8 MB). Peak memory consumption was 129.8 MB. Max. memory is 7.1 GB. [2018-10-24 20:59:30,361 INFO L168 Benchmark]: TraceAbstraction took 225544.60 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 9.6 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-24 20:59:30,366 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 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 669.45 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 190.87 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 763.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -837.6 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.17 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3642.76 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 129.8 MB). Peak memory consumption was 129.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 225544.60 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 9.6 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 124]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 124). Cancelled while BasicCegarLoop was analyzing trace of length 202 with TraceHistMax 3,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 9 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 225.4s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 179.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 504 SDtfs, 2175 SDslu, 639 SDs, 0 SdLazy, 3673 SolverSat, 707 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 83.8s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 331 GetRequests, 275 SyntacticMatches, 13 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 14.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1542occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 24.3s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9935635123614661 AbsIntWeakeningRatio, 0.1411764705882353 AbsIntAvgWeakeningVarsNumRemoved, 292.6156862745098 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 356 ConstructedInterpolants, 0 QuantifiedInterpolants, 175917 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 83/191 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown