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/Problem10_label13_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 02:43:11,134 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 02:43:11,136 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 02:43:11,148 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 02:43:11,149 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 02:43:11,150 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 02:43:11,151 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 02:43:11,153 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 02:43:11,154 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 02:43:11,155 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 02:43:11,156 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 02:43:11,156 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 02:43:11,157 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 02:43:11,158 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 02:43:11,159 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 02:43:11,160 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 02:43:11,161 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 02:43:11,162 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 02:43:11,164 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 02:43:11,166 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 02:43:11,167 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 02:43:11,168 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 02:43:11,171 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 02:43:11,171 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 02:43:11,172 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 02:43:11,173 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 02:43:11,173 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 02:43:11,174 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 02:43:11,175 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 02:43:11,176 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 02:43:11,176 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 02:43:11,177 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 02:43:11,177 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 02:43:11,177 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 02:43:11,178 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 02:43:11,179 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 02:43:11,179 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 02:43:11,195 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 02:43:11,195 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 02:43:11,196 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 02:43:11,196 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 02:43:11,196 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 02:43:11,196 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 02:43:11,197 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 02:43:11,197 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 02:43:11,197 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 02:43:11,197 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 02:43:11,197 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 02:43:11,197 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 02:43:11,198 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 02:43:11,198 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 02:43:11,199 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 02:43:11,199 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 02:43:11,199 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 02:43:11,199 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 02:43:11,199 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 02:43:11,199 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 02:43:11,200 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 02:43:11,200 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 02:43:11,200 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 02:43:11,200 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 02:43:11,200 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 02:43:11,201 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 02:43:11,201 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 02:43:11,201 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 02:43:11,201 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 02:43:11,201 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 02:43:11,202 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 02:43:11,202 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 02:43:11,202 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 02:43:11,202 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 02:43:11,261 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 02:43:11,277 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 02:43:11,281 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 02:43:11,284 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 02:43:11,284 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 02:43:11,285 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label13_true-unreach-call.c [2018-11-07 02:43:11,355 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f66e93244/97861476bb274a7d97ca1c4dd4803c88/FLAG97656402e [2018-11-07 02:43:11,934 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 02:43:11,935 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label13_true-unreach-call.c [2018-11-07 02:43:11,954 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f66e93244/97861476bb274a7d97ca1c4dd4803c88/FLAG97656402e [2018-11-07 02:43:11,974 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f66e93244/97861476bb274a7d97ca1c4dd4803c88 [2018-11-07 02:43:11,986 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 02:43:11,987 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 02:43:11,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 02:43:11,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 02:43:11,994 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 02:43:11,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:43:11" (1/1) ... [2018-11-07 02:43:11,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@193d11b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:11, skipping insertion in model container [2018-11-07 02:43:11,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:43:11" (1/1) ... [2018-11-07 02:43:12,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 02:43:12,085 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 02:43:12,540 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 02:43:12,545 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 02:43:12,658 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 02:43:12,679 INFO L193 MainTranslator]: Completed translation [2018-11-07 02:43:12,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:12 WrapperNode [2018-11-07 02:43:12,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 02:43:12,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 02:43:12,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 02:43:12,681 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 02:43:12,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:12" (1/1) ... [2018-11-07 02:43:12,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:12" (1/1) ... [2018-11-07 02:43:12,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 02:43:12,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 02:43:12,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 02:43:12,809 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 02:43:12,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:12" (1/1) ... [2018-11-07 02:43:12,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:12" (1/1) ... [2018-11-07 02:43:12,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:12" (1/1) ... [2018-11-07 02:43:12,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:12" (1/1) ... [2018-11-07 02:43:12,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:12" (1/1) ... [2018-11-07 02:43:12,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:12" (1/1) ... [2018-11-07 02:43:12,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:12" (1/1) ... [2018-11-07 02:43:12,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 02:43:12,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 02:43:12,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 02:43:12,920 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 02:43:12,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:12" (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 02:43:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 02:43:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 02:43:12,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 02:43:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 02:43:12,991 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 02:43:12,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 02:43:12,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 02:43:12,992 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 02:43:12,992 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 02:43:16,290 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 02:43:16,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:43:16 BoogieIcfgContainer [2018-11-07 02:43:16,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 02:43:16,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 02:43:16,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 02:43:16,296 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 02:43:16,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:43:11" (1/3) ... [2018-11-07 02:43:16,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699e1fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:43:16, skipping insertion in model container [2018-11-07 02:43:16,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:12" (2/3) ... [2018-11-07 02:43:16,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699e1fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:43:16, skipping insertion in model container [2018-11-07 02:43:16,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:43:16" (3/3) ... [2018-11-07 02:43:16,300 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label13_true-unreach-call.c [2018-11-07 02:43:16,310 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 02:43:16,319 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 02:43:16,338 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 02:43:16,378 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 02:43:16,378 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 02:43:16,378 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 02:43:16,379 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 02:43:16,379 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 02:43:16,380 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 02:43:16,380 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 02:43:16,380 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 02:43:16,409 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-11-07 02:43:16,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-07 02:43:16,420 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:43:16,422 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 02:43:16,424 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:43:16,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:43:16,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1833590460, now seen corresponding path program 1 times [2018-11-07 02:43:16,433 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:43:16,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:43:16,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:43:16,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:43:16,480 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:43:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:43:16,955 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 02:43:17,052 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 02:43:17,055 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 02:43:17,056 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 02:43:17,056 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:43:17,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 02:43:17,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 02:43:17,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 02:43:17,084 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-11-07 02:43:18,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:43:18,834 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-11-07 02:43:18,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 02:43:18,839 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2018-11-07 02:43:18,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:43:18,855 INFO L225 Difference]: With dead ends: 574 [2018-11-07 02:43:18,856 INFO L226 Difference]: Without dead ends: 356 [2018-11-07 02:43:18,864 INFO L604 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 [2018-11-07 02:43:18,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-11-07 02:43:18,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-11-07 02:43:18,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-11-07 02:43:18,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 609 transitions. [2018-11-07 02:43:18,951 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 609 transitions. Word has length 62 [2018-11-07 02:43:18,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:43:18,952 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 609 transitions. [2018-11-07 02:43:18,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 02:43:18,952 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 609 transitions. [2018-11-07 02:43:18,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-11-07 02:43:18,968 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:43:18,969 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, 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] [2018-11-07 02:43:18,969 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:43:18,969 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:43:18,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1187218136, now seen corresponding path program 1 times [2018-11-07 02:43:18,971 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:43:18,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:43:18,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:43:18,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:43:18,973 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:43:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:43:19,482 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:43:19,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 02:43:19,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 02:43:19,484 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:43:19,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 02:43:19,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 02:43:19,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 02:43:19,487 INFO L87 Difference]: Start difference. First operand 356 states and 609 transitions. Second operand 5 states. [2018-11-07 02:43:22,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:43:22,156 INFO L93 Difference]: Finished difference Result 1140 states and 2022 transitions. [2018-11-07 02:43:22,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 02:43:22,159 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 182 [2018-11-07 02:43:22,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:43:22,167 INFO L225 Difference]: With dead ends: 1140 [2018-11-07 02:43:22,167 INFO L226 Difference]: Without dead ends: 790 [2018-11-07 02:43:22,172 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-07 02:43:22,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2018-11-07 02:43:22,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 784. [2018-11-07 02:43:22,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2018-11-07 02:43:22,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1300 transitions. [2018-11-07 02:43:22,235 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1300 transitions. Word has length 182 [2018-11-07 02:43:22,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:43:22,236 INFO L480 AbstractCegarLoop]: Abstraction has 784 states and 1300 transitions. [2018-11-07 02:43:22,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 02:43:22,237 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1300 transitions. [2018-11-07 02:43:22,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-11-07 02:43:22,246 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:43:22,247 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, 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] [2018-11-07 02:43:22,247 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:43:22,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:43:22,248 INFO L82 PathProgramCache]: Analyzing trace with hash 853127875, now seen corresponding path program 1 times [2018-11-07 02:43:22,248 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:43:22,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:43:22,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:43:22,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:43:22,250 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:43:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:43:22,612 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:43:22,613 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 02:43:22,613 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 02:43:22,613 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:43:22,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 02:43:22,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 02:43:22,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 02:43:22,614 INFO L87 Difference]: Start difference. First operand 784 states and 1300 transitions. Second operand 6 states. [2018-11-07 02:43:26,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:43:26,245 INFO L93 Difference]: Finished difference Result 1975 states and 3367 transitions. [2018-11-07 02:43:26,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 02:43:26,245 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 189 [2018-11-07 02:43:26,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:43:26,260 INFO L225 Difference]: With dead ends: 1975 [2018-11-07 02:43:26,260 INFO L226 Difference]: Without dead ends: 1197 [2018-11-07 02:43:26,268 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 02:43:26,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2018-11-07 02:43:26,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 1177. [2018-11-07 02:43:26,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1177 states. [2018-11-07 02:43:26,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1754 transitions. [2018-11-07 02:43:26,332 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1754 transitions. Word has length 189 [2018-11-07 02:43:26,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:43:26,333 INFO L480 AbstractCegarLoop]: Abstraction has 1177 states and 1754 transitions. [2018-11-07 02:43:26,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 02:43:26,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1754 transitions. [2018-11-07 02:43:26,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-11-07 02:43:26,343 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:43:26,343 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:43:26,343 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:43:26,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:43:26,344 INFO L82 PathProgramCache]: Analyzing trace with hash 751323799, now seen corresponding path program 1 times [2018-11-07 02:43:26,344 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:43:26,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:43:26,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:43:26,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:43:26,346 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:43:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:43:26,829 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-07 02:43:27,028 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 02:43:27,429 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-07 02:43:27,776 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-11-07 02:43:28,160 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:43:28,160 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 02:43:28,161 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 02:43:28,162 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 254 with the following transitions: [2018-11-07 02:43:28,164 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], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [397], [399], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [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], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-07 02:43:28,239 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 02:43:28,240 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 02:43:30,457 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 02:43:53,252 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 02:43:53,254 INFO L272 AbstractInterpreter]: Visited 128 different actions 738 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. [2018-11-07 02:43:53,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:43:53,261 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 02:43:57,527 INFO L227 lantSequenceWeakener]: Weakened 80 states. On average, predicates are now at 75.89% of their original sizes. [2018-11-07 02:43:57,527 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 02:44:21,722 INFO L415 sIntCurrentIteration]: We unified 252 AI predicates to 252 [2018-11-07 02:44:21,722 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 02:44:21,723 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 02:44:21,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [13] total 27 [2018-11-07 02:44:21,723 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:44:21,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-07 02:44:21,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-07 02:44:21,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2018-11-07 02:44:21,725 INFO L87 Difference]: Start difference. First operand 1177 states and 1754 transitions. Second operand 16 states. [2018-11-07 02:46:19,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:46:19,985 INFO L93 Difference]: Finished difference Result 2808 states and 4265 transitions. [2018-11-07 02:46:19,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-07 02:46:19,985 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 253 [2018-11-07 02:46:19,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:46:19,996 INFO L225 Difference]: With dead ends: 2808 [2018-11-07 02:46:19,997 INFO L226 Difference]: Without dead ends: 1637 [2018-11-07 02:46:20,002 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 260 GetRequests, 206 SyntacticMatches, 32 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 25.8s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2018-11-07 02:46:20,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1637 states. [2018-11-07 02:46:20,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1637 to 1619. [2018-11-07 02:46:20,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1619 states. [2018-11-07 02:46:20,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2226 transitions. [2018-11-07 02:46:20,145 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2226 transitions. Word has length 253 [2018-11-07 02:46:20,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:46:20,146 INFO L480 AbstractCegarLoop]: Abstraction has 1619 states and 2226 transitions. [2018-11-07 02:46:20,146 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-07 02:46:20,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2226 transitions. [2018-11-07 02:46:20,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-11-07 02:46:20,154 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:46:20,154 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:46:20,156 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:46:20,156 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:46:20,156 INFO L82 PathProgramCache]: Analyzing trace with hash 802766300, now seen corresponding path program 1 times [2018-11-07 02:46:20,157 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:46:20,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:46:20,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:46:20,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:46:20,159 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:46:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:46:20,509 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 02:46:21,287 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 111 proven. 6 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-11-07 02:46:21,287 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 02:46:21,287 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 02:46:21,288 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 263 with the following transitions: [2018-11-07 02:46:21,288 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], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [397], [399], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [694], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-11-07 02:46:21,295 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 02:46:21,301 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 02:46:22,660 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 02:46:40,948 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 02:46:40,949 INFO L272 AbstractInterpreter]: Visited 128 different actions 738 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. [2018-11-07 02:46:40,970 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:46:40,970 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 02:46:44,515 INFO L227 lantSequenceWeakener]: Weakened 38 states. On average, predicates are now at 75.48% of their original sizes. [2018-11-07 02:46:44,515 INFO L413 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-11-07 02:47:11,447 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 02:47:11,453 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 02:47:11,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:47:11 BoogieIcfgContainer [2018-11-07 02:47:11,453 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 02:47:11,454 INFO L168 Benchmark]: Toolchain (without parser) took 239467.79 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 3.6 GB in the end (delta: -2.1 GB). Peak memory consumption was 529.0 MB. Max. memory is 7.1 GB. [2018-11-07 02:47:11,456 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-11-07 02:47:11,456 INFO L168 Benchmark]: CACSL2BoogieTranslator took 692.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-11-07 02:47:11,457 INFO L168 Benchmark]: Boogie Procedure Inliner took 127.90 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -820.3 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2018-11-07 02:47:11,458 INFO L168 Benchmark]: Boogie Preprocessor took 109.78 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. [2018-11-07 02:47:11,459 INFO L168 Benchmark]: RCFGBuilder took 3371.61 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: 103.2 MB). Peak memory consumption was 103.2 MB. Max. memory is 7.1 GB. [2018-11-07 02:47:11,460 INFO L168 Benchmark]: TraceAbstraction took 235161.47 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 3.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 469.9 MB. Max. memory is 7.1 GB. [2018-11-07 02:47:11,466 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 692.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 127.90 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -820.3 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.78 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 3371.61 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: 103.2 MB). Peak memory consumption was 103.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 235161.47 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 3.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 469.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 169]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 169). Cancelled while BasicCegarLoop was analyzing trace of length 263 with TraceHistMax 3,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 14 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 235.0s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 126.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 455 SDtfs, 2801 SDslu, 491 SDs, 0 SdLazy, 4340 SolverSat, 901 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 66.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 284 GetRequests, 213 SyntacticMatches, 36 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 26.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1619occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 44.7s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.995402152724807 AbsIntWeakeningRatio, 0.10136452241715399 AbsIntAvgWeakeningVarsNumRemoved, 57.58284600389864 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 44 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 686 NumberOfCodeBlocks, 686 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 682 ConstructedInterpolants, 0 QuantifiedInterpolants, 1030785 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 289/291 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown