java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label54_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 02:28:09,661 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 02:28:09,663 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 02:28:09,675 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 02:28:09,675 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 02:28:09,676 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 02:28:09,677 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 02:28:09,679 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 02:28:09,681 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 02:28:09,682 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 02:28:09,683 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 02:28:09,683 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 02:28:09,684 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 02:28:09,685 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 02:28:09,686 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 02:28:09,687 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 02:28:09,688 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 02:28:09,690 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 02:28:09,692 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 02:28:09,693 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 02:28:09,695 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 02:28:09,696 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 02:28:09,699 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 02:28:09,713 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 02:28:09,713 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 02:28:09,714 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 02:28:09,719 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 02:28:09,720 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 02:28:09,754 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 02:28:09,754 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 02:28:09,755 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 02:28:09,755 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 02:28:09,756 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 02:28:09,756 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 02:28:09,756 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 02:28:09,756 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 02:28:09,756 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 02:28:09,757 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 02:28:09,757 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 02:28:09,757 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 02:28:09,758 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 02:28:09,758 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 02:28:09,758 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 02:28:09,758 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 02:28:09,758 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 02:28:09,759 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 02:28:09,759 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 02:28:09,759 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 02:28:09,759 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 02:28:09,759 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 02:28:09,760 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 02:28:09,760 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 02:28:09,760 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 02:28:09,760 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 02:28:09,760 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 02:28:09,761 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 02:28:09,761 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 02:28:09,761 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 02:28:09,761 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 02:28:09,761 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 02:28:09,761 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 02:28:09,762 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 02:28:09,825 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 02:28:09,840 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 02:28:09,843 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 02:28:09,845 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 02:28:09,845 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 02:28:09,846 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label54_true-unreach-call.c [2018-10-24 02:28:09,921 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a071971a4/4e19675e000343bba18215c691c272b6/FLAGb12d4ef15 [2018-10-24 02:28:10,901 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 02:28:10,902 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label54_true-unreach-call.c [2018-10-24 02:28:10,962 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a071971a4/4e19675e000343bba18215c691c272b6/FLAGb12d4ef15 [2018-10-24 02:28:10,979 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a071971a4/4e19675e000343bba18215c691c272b6 [2018-10-24 02:28:10,992 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 02:28:10,994 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 02:28:10,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 02:28:10,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 02:28:10,999 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 02:28:11,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:28:10" (1/1) ... [2018-10-24 02:28:11,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52590c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:11, skipping insertion in model container [2018-10-24 02:28:11,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:28:10" (1/1) ... [2018-10-24 02:28:11,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 02:28:11,274 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 02:28:13,397 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 02:28:13,405 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 02:28:14,562 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 02:28:14,619 INFO L193 MainTranslator]: Completed translation [2018-10-24 02:28:14,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:14 WrapperNode [2018-10-24 02:28:14,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 02:28:14,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 02:28:14,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 02:28:14,621 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 02:28:14,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:14" (1/1) ... [2018-10-24 02:28:14,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:14" (1/1) ... [2018-10-24 02:28:15,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 02:28:15,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 02:28:15,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 02:28:15,427 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 02:28:15,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:14" (1/1) ... [2018-10-24 02:28:15,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:14" (1/1) ... [2018-10-24 02:28:15,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:14" (1/1) ... [2018-10-24 02:28:15,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:14" (1/1) ... [2018-10-24 02:28:15,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:14" (1/1) ... [2018-10-24 02:28:15,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:14" (1/1) ... [2018-10-24 02:28:15,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:14" (1/1) ... [2018-10-24 02:28:16,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 02:28:16,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 02:28:16,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 02:28:16,062 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 02:28:16,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 02:28:16,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 02:28:16,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 02:28:16,134 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-10-24 02:28:16,134 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-10-24 02:28:16,134 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-10-24 02:28:16,135 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-10-24 02:28:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 02:28:16,135 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 02:28:16,135 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 02:28:16,135 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 02:28:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 02:28:16,136 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 02:28:16,136 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 02:28:16,137 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 02:28:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 02:28:16,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 02:28:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 02:28:16,137 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 02:28:33,645 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 02:28:33,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:28:33 BoogieIcfgContainer [2018-10-24 02:28:33,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 02:28:33,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 02:28:33,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 02:28:33,651 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 02:28:33,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:28:10" (1/3) ... [2018-10-24 02:28:33,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8ebec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:28:33, skipping insertion in model container [2018-10-24 02:28:33,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:14" (2/3) ... [2018-10-24 02:28:33,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8ebec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:28:33, skipping insertion in model container [2018-10-24 02:28:33,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:28:33" (3/3) ... [2018-10-24 02:28:33,655 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label54_true-unreach-call.c [2018-10-24 02:28:33,666 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 02:28:33,682 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 02:28:33,700 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 02:28:33,773 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 02:28:33,773 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 02:28:33,773 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 02:28:33,773 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 02:28:33,774 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 02:28:33,774 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 02:28:33,774 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 02:28:33,774 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 02:28:33,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-10-24 02:28:33,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-10-24 02:28:33,853 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:28:33,854 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] [2018-10-24 02:28:33,857 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:28:33,863 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:28:33,863 INFO L82 PathProgramCache]: Analyzing trace with hash 2122689370, now seen corresponding path program 1 times [2018-10-24 02:28:33,866 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:28:33,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:28:33,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:28:33,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:28:33,926 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:28:34,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:28:34,463 WARN L179 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 02:28:34,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:28:34,582 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:28:34,583 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 02:28:34,583 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:28:34,589 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 02:28:34,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 02:28:34,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 02:28:34,609 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-10-24 02:28:50,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:28:50,669 INFO L93 Difference]: Finished difference Result 4998 states and 9417 transitions. [2018-10-24 02:28:50,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 02:28:50,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2018-10-24 02:28:50,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:28:50,722 INFO L225 Difference]: With dead ends: 4998 [2018-10-24 02:28:50,722 INFO L226 Difference]: Without dead ends: 3218 [2018-10-24 02:28:50,735 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 02:28:50,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2018-10-24 02:28:50,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 3215. [2018-10-24 02:28:50,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-10-24 02:28:50,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5854 transitions. [2018-10-24 02:28:50,946 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5854 transitions. Word has length 71 [2018-10-24 02:28:50,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:28:50,947 INFO L481 AbstractCegarLoop]: Abstraction has 3215 states and 5854 transitions. [2018-10-24 02:28:50,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 02:28:50,948 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5854 transitions. [2018-10-24 02:28:50,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-10-24 02:28:50,957 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:28:50,957 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, 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] [2018-10-24 02:28:50,958 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:28:50,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:28:50,958 INFO L82 PathProgramCache]: Analyzing trace with hash 952822916, now seen corresponding path program 1 times [2018-10-24 02:28:50,959 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:28:50,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:28:50,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:28:50,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:28:50,960 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:28:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:28:51,331 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 02:28:51,769 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:28:51,769 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:28:51,770 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 02:28:51,770 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:28:51,773 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 02:28:51,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 02:28:51,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 02:28:51,774 INFO L87 Difference]: Start difference. First operand 3215 states and 5854 transitions. Second operand 6 states. [2018-10-24 02:29:20,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:29:20,682 INFO L93 Difference]: Finished difference Result 9340 states and 16946 transitions. [2018-10-24 02:29:20,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 02:29:20,685 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2018-10-24 02:29:20,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:29:20,724 INFO L225 Difference]: With dead ends: 9340 [2018-10-24 02:29:20,724 INFO L226 Difference]: Without dead ends: 6131 [2018-10-24 02:29:20,737 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 02:29:20,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6131 states. [2018-10-24 02:29:20,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6131 to 6091. [2018-10-24 02:29:20,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6091 states. [2018-10-24 02:29:20,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6091 states to 6091 states and 9637 transitions. [2018-10-24 02:29:20,947 INFO L78 Accepts]: Start accepts. Automaton has 6091 states and 9637 transitions. Word has length 143 [2018-10-24 02:29:20,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:29:20,948 INFO L481 AbstractCegarLoop]: Abstraction has 6091 states and 9637 transitions. [2018-10-24 02:29:20,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 02:29:20,948 INFO L276 IsEmpty]: Start isEmpty. Operand 6091 states and 9637 transitions. [2018-10-24 02:29:20,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-10-24 02:29:20,957 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:29:20,957 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, 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] [2018-10-24 02:29:20,957 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:29:20,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:29:20,958 INFO L82 PathProgramCache]: Analyzing trace with hash 159779727, now seen corresponding path program 1 times [2018-10-24 02:29:20,958 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:29:20,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:29:20,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:29:20,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:29:20,964 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:29:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:29:21,269 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:29:21,269 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:29:21,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 02:29:21,269 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:29:21,270 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 02:29:21,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 02:29:21,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 02:29:21,271 INFO L87 Difference]: Start difference. First operand 6091 states and 9637 transitions. Second operand 6 states. [2018-10-24 02:29:47,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:29:47,901 INFO L93 Difference]: Finished difference Result 21091 states and 34228 transitions. [2018-10-24 02:29:47,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 02:29:47,902 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-10-24 02:29:47,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:29:47,968 INFO L225 Difference]: With dead ends: 21091 [2018-10-24 02:29:47,969 INFO L226 Difference]: Without dead ends: 15006 [2018-10-24 02:29:47,992 INFO L605 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 [2018-10-24 02:29:48,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15006 states. [2018-10-24 02:29:48,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15006 to 14817. [2018-10-24 02:29:48,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14817 states. [2018-10-24 02:29:48,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14817 states to 14817 states and 22424 transitions. [2018-10-24 02:29:48,362 INFO L78 Accepts]: Start accepts. Automaton has 14817 states and 22424 transitions. Word has length 145 [2018-10-24 02:29:48,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:29:48,363 INFO L481 AbstractCegarLoop]: Abstraction has 14817 states and 22424 transitions. [2018-10-24 02:29:48,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 02:29:48,363 INFO L276 IsEmpty]: Start isEmpty. Operand 14817 states and 22424 transitions. [2018-10-24 02:29:48,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-10-24 02:29:48,371 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:29:48,371 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, 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] [2018-10-24 02:29:48,371 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:29:48,371 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:29:48,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1508483004, now seen corresponding path program 1 times [2018-10-24 02:29:48,372 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:29:48,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:29:48,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:29:48,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:29:48,378 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:29:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:29:48,774 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:29:48,775 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:29:48,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 02:29:48,775 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:29:48,776 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 02:29:48,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 02:29:48,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 02:29:48,778 INFO L87 Difference]: Start difference. First operand 14817 states and 22424 transitions. Second operand 5 states. [2018-10-24 02:30:21,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:30:21,825 INFO L93 Difference]: Finished difference Result 45430 states and 70748 transitions. [2018-10-24 02:30:21,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 02:30:21,828 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 176 [2018-10-24 02:30:21,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:30:21,940 INFO L225 Difference]: With dead ends: 45430 [2018-10-24 02:30:21,941 INFO L226 Difference]: Without dead ends: 30619 [2018-10-24 02:30:21,978 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 02:30:22,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30619 states. [2018-10-24 02:30:22,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30619 to 30149. [2018-10-24 02:30:22,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30149 states. [2018-10-24 02:30:22,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30149 states to 30149 states and 41658 transitions. [2018-10-24 02:30:22,695 INFO L78 Accepts]: Start accepts. Automaton has 30149 states and 41658 transitions. Word has length 176 [2018-10-24 02:30:22,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:30:22,696 INFO L481 AbstractCegarLoop]: Abstraction has 30149 states and 41658 transitions. [2018-10-24 02:30:22,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 02:30:22,696 INFO L276 IsEmpty]: Start isEmpty. Operand 30149 states and 41658 transitions. [2018-10-24 02:30:22,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-10-24 02:30:22,710 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:30:22,710 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 02:30:22,711 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:30:22,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:30:22,711 INFO L82 PathProgramCache]: Analyzing trace with hash -300329630, now seen corresponding path program 1 times [2018-10-24 02:30:22,711 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:30:22,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:30:22,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:30:22,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:30:22,712 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:30:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:30:23,016 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 02:30:23,454 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 128 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 02:30:23,455 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:30:23,455 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 02:30:23,459 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 243 with the following transitions: [2018-10-24 02:30:23,466 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5498], [5506], [5514], [5522], [5530], [5538], [5546], [5554], [5562], [5570], [5578], [5586], [5594], [5602], [5610], [5618], [5626], [5634], [5642], [5650], [5658], [5666], [5674], [5682], [5690], [5694], [5696], [5699], [5707], [5715], [5719], [5722], [5726], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5782], [5786], [5797], [5808], [5819], [5823], [5827], [5838], [5842], [5846], [5850], [5854], [5858], [5862], [5866], [5870], [5874], [5877], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-10-24 02:30:23,593 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 02:30:23,594 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 02:30:27,670 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 02:30:27,707 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 02:30:27,708 INFO L272 AbstractInterpreter]: Visited 104 different actions 104 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-24 02:30:27,731 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:30:27,731 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 02:30:30,461 INFO L232 lantSequenceWeakener]: Weakened 232 states. On average, predicates are now at 75.98% of their original sizes. [2018-10-24 02:30:30,461 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 02:30:30,934 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 02:30:30,935 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 02:30:30,935 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 02:30:30,935 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:30:30,936 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 02:30:30,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 02:30:30,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 02:30:30,937 INFO L87 Difference]: Start difference. First operand 30149 states and 41658 transitions. Second operand 7 states. Received shutdown request... [2018-10-24 02:31:39,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 02:31:39,743 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 02:31:39,749 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 02:31:39,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:31:39 BoogieIcfgContainer [2018-10-24 02:31:39,749 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 02:31:39,750 INFO L168 Benchmark]: Toolchain (without parser) took 208757.19 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -867.9 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-24 02:31:39,751 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 02:31:39,752 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3625.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 382.2 MB). Peak memory consumption was 382.2 MB. Max. memory is 7.1 GB. [2018-10-24 02:31:39,753 INFO L168 Benchmark]: Boogie Procedure Inliner took 805.01 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 876.6 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. [2018-10-24 02:31:39,754 INFO L168 Benchmark]: Boogie Preprocessor took 634.45 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 52.2 MB). Peak memory consumption was 52.2 MB. Max. memory is 7.1 GB. [2018-10-24 02:31:39,754 INFO L168 Benchmark]: RCFGBuilder took 17585.55 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 166.2 MB). Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 521.9 MB). Peak memory consumption was 688.1 MB. Max. memory is 7.1 GB. [2018-10-24 02:31:39,755 INFO L168 Benchmark]: TraceAbstraction took 186101.45 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 2.3 GB in the end (delta: -546.0 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-10-24 02:31:39,761 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3625.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 382.2 MB). Peak memory consumption was 382.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 805.01 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 876.6 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 634.45 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 52.2 MB). Peak memory consumption was 52.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17585.55 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 166.2 MB). Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 521.9 MB). Peak memory consumption was 688.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 186101.45 ms. Allocated memory was 2.6 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 2.3 GB in the end (delta: -546.0 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 208]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 208). Cancelled while BasicCegarLoop was constructing difference of abstraction (30149states) and FLOYD_HOARE automaton (currently 7 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (22217 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 185.9s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 173.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3238 SDtfs, 22643 SDslu, 2885 SDs, 0 SdLazy, 39505 SolverSat, 9597 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 127.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 276 GetRequests, 245 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30149occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9961442706670921 AbsIntWeakeningRatio, 0.11618257261410789 AbsIntAvgWeakeningVarsNumRemoved, 1043.3029045643154 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 702 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 777 NumberOfCodeBlocks, 777 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 772 ConstructedInterpolants, 0 QuantifiedInterpolants, 396392 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 325/390 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown