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/Problem01_label32_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 23:02:49,566 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 23:02:49,568 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 23:02:49,580 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 23:02:49,581 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 23:02:49,582 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 23:02:49,583 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 23:02:49,585 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 23:02:49,587 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 23:02:49,588 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 23:02:49,589 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 23:02:49,589 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 23:02:49,590 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 23:02:49,591 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 23:02:49,592 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 23:02:49,593 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 23:02:49,594 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 23:02:49,596 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 23:02:49,599 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 23:02:49,600 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 23:02:49,602 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 23:02:49,603 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 23:02:49,606 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 23:02:49,606 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 23:02:49,606 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 23:02:49,607 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 23:02:49,609 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 23:02:49,609 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 23:02:49,610 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 23:02:49,611 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 23:02:49,612 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 23:02:49,612 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-06 23:02:49,613 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-06 23:02:49,613 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-06 23:02:49,614 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-06 23:02:49,615 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-06 23:02:49,615 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 [2018-11-06 23:02:49,631 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 23:02:49,631 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 23:02:49,632 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 23:02:49,633 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-06 23:02:49,633 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-06 23:02:49,633 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-06 23:02:49,633 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-06 23:02:49,633 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-06 23:02:49,634 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-06 23:02:49,634 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-06 23:02:49,634 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-06 23:02:49,634 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-06 23:02:49,635 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 23:02:49,635 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 23:02:49,635 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 23:02:49,636 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 23:02:49,636 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 23:02:49,636 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 23:02:49,636 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 23:02:49,636 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 23:02:49,637 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 23:02:49,637 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 23:02:49,637 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 23:02:49,637 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 23:02:49,637 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 23:02:49,638 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 23:02:49,638 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 23:02:49,638 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 23:02:49,638 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-06 23:02:49,638 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 23:02:49,639 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 23:02:49,639 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 23:02:49,639 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 23:02:49,639 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-06 23:02:49,709 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 23:02:49,722 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 23:02:49,727 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 23:02:49,729 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 23:02:49,729 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 23:02:49,730 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label32_false-unreach-call_false-termination.c [2018-11-06 23:02:49,796 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2df7e78d/54971d715ef9430f8d233c6e710238df/FLAG033416997 [2018-11-06 23:02:50,325 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 23:02:50,326 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label32_false-unreach-call_false-termination.c [2018-11-06 23:02:50,339 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2df7e78d/54971d715ef9430f8d233c6e710238df/FLAG033416997 [2018-11-06 23:02:50,355 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2df7e78d/54971d715ef9430f8d233c6e710238df [2018-11-06 23:02:50,366 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 23:02:50,368 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 23:02:50,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 23:02:50,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 23:02:50,373 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 23:02:50,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:02:50" (1/1) ... [2018-11-06 23:02:50,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59271772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:50, skipping insertion in model container [2018-11-06 23:02:50,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:02:50" (1/1) ... [2018-11-06 23:02:50,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 23:02:50,446 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 23:02:50,974 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 23:02:50,979 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 23:02:51,152 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 23:02:51,181 INFO L193 MainTranslator]: Completed translation [2018-11-06 23:02:51,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:51 WrapperNode [2018-11-06 23:02:51,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 23:02:51,183 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 23:02:51,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 23:02:51,183 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 23:02:51,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:51" (1/1) ... [2018-11-06 23:02:51,231 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:51" (1/1) ... [2018-11-06 23:02:51,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 23:02:51,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 23:02:51,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 23:02:51,355 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 23:02:51,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:51" (1/1) ... [2018-11-06 23:02:51,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:51" (1/1) ... [2018-11-06 23:02:51,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:51" (1/1) ... [2018-11-06 23:02:51,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:51" (1/1) ... [2018-11-06 23:02:51,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:51" (1/1) ... [2018-11-06 23:02:51,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:51" (1/1) ... [2018-11-06 23:02:51,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:51" (1/1) ... [2018-11-06 23:02:51,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 23:02:51,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 23:02:51,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 23:02:51,481 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 23:02:51,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:51" (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 [2018-11-06 23:02:51,555 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 23:02:51,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-06 23:02:51,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-06 23:02:51,555 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-06 23:02:51,556 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-06 23:02:51,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 23:02:51,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 23:02:51,556 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-06 23:02:51,556 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-06 23:02:54,653 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 23:02:54,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:02:54 BoogieIcfgContainer [2018-11-06 23:02:54,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 23:02:54,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 23:02:54,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 23:02:54,660 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 23:02:54,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:02:50" (1/3) ... [2018-11-06 23:02:54,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f76e5d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:02:54, skipping insertion in model container [2018-11-06 23:02:54,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:51" (2/3) ... [2018-11-06 23:02:54,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f76e5d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:02:54, skipping insertion in model container [2018-11-06 23:02:54,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:02:54" (3/3) ... [2018-11-06 23:02:54,664 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label32_false-unreach-call_false-termination.c [2018-11-06 23:02:54,674 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 23:02:54,681 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 23:02:54,696 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 23:02:54,736 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 23:02:54,737 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 23:02:54,737 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 23:02:54,737 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 23:02:54,737 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 23:02:54,737 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 23:02:54,738 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 23:02:54,738 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 23:02:54,767 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-11-06 23:02:54,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-11-06 23:02:54,778 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:02:54,779 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 23:02:54,782 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:02:54,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:02:54,788 INFO L82 PathProgramCache]: Analyzing trace with hash -482590571, now seen corresponding path program 1 times [2018-11-06 23:02:54,791 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:02:54,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:02:54,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:02:54,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:02:54,848 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:02:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:02:55,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:02:55,460 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 23:02:55,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 23:02:55,460 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:02:55,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 23:02:55,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 23:02:55,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 23:02:55,490 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-11-06 23:02:56,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 23:02:56,905 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-11-06 23:02:56,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 23:02:56,907 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 81 [2018-11-06 23:02:56,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 23:02:56,937 INFO L225 Difference]: With dead ends: 550 [2018-11-06 23:02:56,938 INFO L226 Difference]: Without dead ends: 340 [2018-11-06 23:02:56,947 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 23:02:56,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-11-06 23:02:57,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-11-06 23:02:57,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-11-06 23:02:57,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 541 transitions. [2018-11-06 23:02:57,061 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 541 transitions. Word has length 81 [2018-11-06 23:02:57,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 23:02:57,062 INFO L480 AbstractCegarLoop]: Abstraction has 340 states and 541 transitions. [2018-11-06 23:02:57,063 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 23:02:57,063 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 541 transitions. [2018-11-06 23:02:57,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-11-06 23:02:57,070 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:02:57,074 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-06 23:02:57,074 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:02:57,075 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:02:57,075 INFO L82 PathProgramCache]: Analyzing trace with hash 2016856214, now seen corresponding path program 1 times [2018-11-06 23:02:57,075 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:02:57,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:02:57,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:02:57,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:02:57,078 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:02:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:02:57,356 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:02:57,357 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 23:02:57,357 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-06 23:02:57,357 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:02:57,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 23:02:57,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 23:02:57,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-06 23:02:57,362 INFO L87 Difference]: Start difference. First operand 340 states and 541 transitions. Second operand 6 states. [2018-11-06 23:02:59,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 23:02:59,247 INFO L93 Difference]: Finished difference Result 1075 states and 1784 transitions. [2018-11-06 23:02:59,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 23:02:59,249 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2018-11-06 23:02:59,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 23:02:59,261 INFO L225 Difference]: With dead ends: 1075 [2018-11-06 23:02:59,262 INFO L226 Difference]: Without dead ends: 741 [2018-11-06 23:02:59,268 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-06 23:02:59,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2018-11-06 23:02:59,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 724. [2018-11-06 23:02:59,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2018-11-06 23:02:59,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1120 transitions. [2018-11-06 23:02:59,327 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1120 transitions. Word has length 92 [2018-11-06 23:02:59,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 23:02:59,327 INFO L480 AbstractCegarLoop]: Abstraction has 724 states and 1120 transitions. [2018-11-06 23:02:59,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 23:02:59,328 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1120 transitions. [2018-11-06 23:02:59,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-11-06 23:02:59,332 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 23:02:59,332 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-06 23:02:59,333 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 23:02:59,333 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:02:59,333 INFO L82 PathProgramCache]: Analyzing trace with hash -2145996606, now seen corresponding path program 1 times [2018-11-06 23:02:59,333 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-06 23:02:59,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:02:59,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 23:02:59,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 23:02:59,335 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-06 23:02:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 23:02:59,581 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 23:02:59,581 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 23:02:59,581 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-06 23:02:59,582 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 94 with the following transitions: [2018-11-06 23:02:59,584 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [285], [287], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-06 23:02:59,657 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-06 23:02:59,657 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-06 23:03:36,912 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-06 23:03:36,914 INFO L272 AbstractInterpreter]: Visited 84 different actions 148 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-06 23:03:36,928 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 23:03:36,928 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-06 23:03:42,301 INFO L227 lantSequenceWeakener]: Weakened 72 states. On average, predicates are now at 80.37% of their original sizes. [2018-11-06 23:03:42,301 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-06 23:04:08,144 INFO L415 sIntCurrentIteration]: We unified 92 AI predicates to 92 [2018-11-06 23:04:08,145 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-06 23:04:08,146 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 23:04:08,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [7] total 23 [2018-11-06 23:04:08,147 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-06 23:04:08,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-06 23:04:08,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-06 23:04:08,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2018-11-06 23:04:08,148 INFO L87 Difference]: Start difference. First operand 724 states and 1120 transitions. Second operand 18 states. Received shutdown request... [2018-11-06 23:07:14,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-06 23:07:14,774 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-06 23:07:14,781 WARN L205 ceAbstractionStarter]: Timeout [2018-11-06 23:07:14,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:07:14 BoogieIcfgContainer [2018-11-06 23:07:14,781 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 23:07:14,782 INFO L168 Benchmark]: Toolchain (without parser) took 264415.25 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 3.7 GB in the end (delta: -2.3 GB). Peak memory consumption was 385.4 MB. Max. memory is 7.1 GB. [2018-11-06 23:07:14,785 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. [2018-11-06 23:07:14,785 INFO L168 Benchmark]: CACSL2BoogieTranslator took 813.23 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. [2018-11-06 23:07:14,786 INFO L168 Benchmark]: Boogie Procedure Inliner took 171.77 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -802.3 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2018-11-06 23:07:14,787 INFO L168 Benchmark]: Boogie Preprocessor took 124.78 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. [2018-11-06 23:07:14,788 INFO L168 Benchmark]: RCFGBuilder took 3174.71 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: 110.3 MB). Peak memory consumption was 110.3 MB. Max. memory is 7.1 GB. [2018-11-06 23:07:14,788 INFO L168 Benchmark]: TraceAbstraction took 260125.49 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 3.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 317.0 MB. Max. memory is 7.1 GB. [2018-11-06 23:07:14,793 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 813.23 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 171.77 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -802.3 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.78 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 3174.71 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: 110.3 MB). Peak memory consumption was 110.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 260125.49 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 3.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 317.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 398]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 398). Cancelled while BasicCegarLoop was constructing difference of abstraction (724states) and FLOYD_HOARE automaton (currently 24 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (875 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 260.0s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 190.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 303 SDtfs, 2189 SDslu, 217 SDs, 0 SdLazy, 2162 SolverSat, 595 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 86.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 119 GetRequests, 81 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 42.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=724occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 37.3s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9919519769731859 AbsIntWeakeningRatio, 0.31521739130434784 AbsIntAvgWeakeningVarsNumRemoved, 158.31521739130434 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 17 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 266 NumberOfCodeBlocks, 266 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 263 ConstructedInterpolants, 0 QuantifiedInterpolants, 72363 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 11/17 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown