java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label36_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 00:56:07,815 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 00:56:07,820 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 00:56:07,833 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 00:56:07,833 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 00:56:07,834 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 00:56:07,835 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 00:56:07,837 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 00:56:07,839 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 00:56:07,840 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 00:56:07,841 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 00:56:07,841 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 00:56:07,842 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 00:56:07,843 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 00:56:07,844 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 00:56:07,845 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 00:56:07,846 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 00:56:07,848 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 00:56:07,850 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 00:56:07,851 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 00:56:07,853 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 00:56:07,854 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 00:56:07,856 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 00:56:07,864 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 00:56:07,880 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 00:56:07,880 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 00:56:07,881 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 00:56:07,882 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 00:56:07,882 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 00:56:07,882 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 00:56:07,882 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 00:56:07,882 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 00:56:07,883 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 00:56:07,883 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 00:56:07,883 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 00:56:07,883 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 00:56:07,886 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 00:56:07,886 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 00:56:07,886 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 00:56:07,886 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 00:56:07,886 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 00:56:07,887 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 00:56:07,888 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 00:56:07,888 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 00:56:07,888 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 00:56:07,888 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 00:56:07,889 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 00:56:07,889 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 00:56:07,889 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 00:56:07,889 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 00:56:07,889 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 00:56:07,890 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 00:56:07,890 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 00:56:07,890 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 00:56:07,890 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 00:56:07,890 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 00:56:07,891 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 00:56:07,891 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 00:56:07,949 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 00:56:07,962 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 00:56:07,966 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 00:56:07,968 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 00:56:07,968 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 00:56:07,969 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label36_true-unreach-call.c [2018-10-24 00:56:08,037 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5da6faac1/89ecb1d55c9d4440ac7a49cc2349a81c/FLAG2f863ae07 [2018-10-24 00:56:08,588 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 00:56:08,589 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label36_true-unreach-call.c [2018-10-24 00:56:08,609 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5da6faac1/89ecb1d55c9d4440ac7a49cc2349a81c/FLAG2f863ae07 [2018-10-24 00:56:08,628 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5da6faac1/89ecb1d55c9d4440ac7a49cc2349a81c [2018-10-24 00:56:08,642 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 00:56:08,645 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 00:56:08,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 00:56:08,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 00:56:08,654 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 00:56:08,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:56:08" (1/1) ... [2018-10-24 00:56:08,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@436ba03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:56:08, skipping insertion in model container [2018-10-24 00:56:08,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:56:08" (1/1) ... [2018-10-24 00:56:08,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 00:56:08,748 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 00:56:09,233 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 00:56:09,238 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 00:56:09,352 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 00:56:09,370 INFO L193 MainTranslator]: Completed translation [2018-10-24 00:56:09,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:56:09 WrapperNode [2018-10-24 00:56:09,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 00:56:09,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 00:56:09,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 00:56:09,372 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 00:56:09,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:56:09" (1/1) ... [2018-10-24 00:56:09,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:56:09" (1/1) ... [2018-10-24 00:56:09,601 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 00:56:09,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 00:56:09,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 00:56:09,602 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 00:56:09,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:56:09" (1/1) ... [2018-10-24 00:56:09,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:56:09" (1/1) ... [2018-10-24 00:56:09,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:56:09" (1/1) ... [2018-10-24 00:56:09,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:56:09" (1/1) ... [2018-10-24 00:56:09,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:56:09" (1/1) ... [2018-10-24 00:56:09,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:56:09" (1/1) ... [2018-10-24 00:56:09,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:56:09" (1/1) ... [2018-10-24 00:56:09,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 00:56:09,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 00:56:09,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 00:56:09,727 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 00:56:09,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:56:09" (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 00:56:09,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 00:56:09,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 00:56:09,811 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 00:56:09,812 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 00:56:09,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 00:56:09,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 00:56:09,812 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 00:56:09,813 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 00:56:13,175 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 00:56:13,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:56:13 BoogieIcfgContainer [2018-10-24 00:56:13,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 00:56:13,177 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 00:56:13,177 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 00:56:13,181 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 00:56:13,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:56:08" (1/3) ... [2018-10-24 00:56:13,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7c427 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:56:13, skipping insertion in model container [2018-10-24 00:56:13,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:56:09" (2/3) ... [2018-10-24 00:56:13,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7c427 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:56:13, skipping insertion in model container [2018-10-24 00:56:13,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:56:13" (3/3) ... [2018-10-24 00:56:13,185 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label36_true-unreach-call.c [2018-10-24 00:56:13,196 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 00:56:13,207 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 00:56:13,227 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 00:56:13,267 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 00:56:13,267 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 00:56:13,267 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 00:56:13,268 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 00:56:13,268 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 00:56:13,268 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 00:56:13,268 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 00:56:13,268 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 00:56:13,295 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-24 00:56:13,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-24 00:56:13,305 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 00:56:13,306 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] [2018-10-24 00:56:13,309 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 00:56:13,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:56:13,316 INFO L82 PathProgramCache]: Analyzing trace with hash -7982076, now seen corresponding path program 1 times [2018-10-24 00:56:13,318 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 00:56:13,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:56:13,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 00:56:13,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:56:13,368 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 00:56:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 00:56:13,802 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 00:56:13,915 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 00:56:13,918 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 00:56:13,918 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 00:56:13,918 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 00:56:13,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 00:56:13,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 00:56:13,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 00:56:13,944 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-10-24 00:56:15,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 00:56:15,990 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-10-24 00:56:15,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 00:56:15,994 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2018-10-24 00:56:15,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 00:56:16,014 INFO L225 Difference]: With dead ends: 574 [2018-10-24 00:56:16,015 INFO L226 Difference]: Without dead ends: 356 [2018-10-24 00:56:16,022 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 00:56:16,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-10-24 00:56:16,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-10-24 00:56:16,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-10-24 00:56:16,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 609 transitions. [2018-10-24 00:56:16,109 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 609 transitions. Word has length 46 [2018-10-24 00:56:16,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 00:56:16,110 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 609 transitions. [2018-10-24 00:56:16,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 00:56:16,110 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 609 transitions. [2018-10-24 00:56:16,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-10-24 00:56:16,118 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 00:56:16,119 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:56:16,119 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 00:56:16,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:56:16,120 INFO L82 PathProgramCache]: Analyzing trace with hash -443611109, now seen corresponding path program 1 times [2018-10-24 00:56:16,120 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 00:56:16,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:56:16,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 00:56:16,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:56:16,122 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 00:56:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 00:56:16,453 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 00:56:16,454 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 00:56:16,454 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 00:56:16,454 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 00:56:16,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 00:56:16,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 00:56:16,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 00:56:16,458 INFO L87 Difference]: Start difference. First operand 356 states and 609 transitions. Second operand 5 states. [2018-10-24 00:56:20,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 00:56:20,278 INFO L93 Difference]: Finished difference Result 1290 states and 2315 transitions. [2018-10-24 00:56:20,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 00:56:20,280 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2018-10-24 00:56:20,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 00:56:20,289 INFO L225 Difference]: With dead ends: 1290 [2018-10-24 00:56:20,290 INFO L226 Difference]: Without dead ends: 940 [2018-10-24 00:56:20,294 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 00:56:20,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2018-10-24 00:56:20,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 925. [2018-10-24 00:56:20,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 925 states. [2018-10-24 00:56:20,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1443 transitions. [2018-10-24 00:56:20,378 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1443 transitions. Word has length 129 [2018-10-24 00:56:20,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 00:56:20,379 INFO L481 AbstractCegarLoop]: Abstraction has 925 states and 1443 transitions. [2018-10-24 00:56:20,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 00:56:20,380 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1443 transitions. [2018-10-24 00:56:20,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-10-24 00:56:20,386 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 00:56:20,386 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:56:20,386 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 00:56:20,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:56:20,387 INFO L82 PathProgramCache]: Analyzing trace with hash -205231877, now seen corresponding path program 1 times [2018-10-24 00:56:20,387 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 00:56:20,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:56:20,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 00:56:20,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:56:20,389 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 00:56:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 00:56:20,754 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 00:56:20,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 00:56:20,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 00:56:20,755 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 00:56:20,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 00:56:20,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 00:56:20,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 00:56:20,756 INFO L87 Difference]: Start difference. First operand 925 states and 1443 transitions. Second operand 6 states. [2018-10-24 00:56:24,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 00:56:24,801 INFO L93 Difference]: Finished difference Result 2535 states and 4089 transitions. [2018-10-24 00:56:24,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 00:56:24,803 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-10-24 00:56:24,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 00:56:24,822 INFO L225 Difference]: With dead ends: 2535 [2018-10-24 00:56:24,822 INFO L226 Difference]: Without dead ends: 1616 [2018-10-24 00:56:24,833 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 00:56:24,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2018-10-24 00:56:24,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1585. [2018-10-24 00:56:24,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1585 states. [2018-10-24 00:56:24,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2320 transitions. [2018-10-24 00:56:24,901 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2320 transitions. Word has length 145 [2018-10-24 00:56:24,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 00:56:24,902 INFO L481 AbstractCegarLoop]: Abstraction has 1585 states and 2320 transitions. [2018-10-24 00:56:24,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 00:56:24,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2320 transitions. [2018-10-24 00:56:24,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-10-24 00:56:24,907 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 00:56:24,908 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:56:24,908 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 00:56:24,908 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:56:24,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1849309771, now seen corresponding path program 1 times [2018-10-24 00:56:24,910 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 00:56:24,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:56:24,911 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 00:56:24,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:56:24,912 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 00:56:24,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 00:56:25,220 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 00:56:25,635 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 00:56:25,636 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 00:56:25,636 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 00:56:25,636 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 00:56:25,637 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 00:56:25,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 00:56:25,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 00:56:25,639 INFO L87 Difference]: Start difference. First operand 1585 states and 2320 transitions. Second operand 6 states. [2018-10-24 00:56:26,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 00:56:26,936 INFO L93 Difference]: Finished difference Result 3506 states and 5314 transitions. [2018-10-24 00:56:26,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 00:56:26,943 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 169 [2018-10-24 00:56:26,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 00:56:26,959 INFO L225 Difference]: With dead ends: 3506 [2018-10-24 00:56:26,959 INFO L226 Difference]: Without dead ends: 1927 [2018-10-24 00:56:26,967 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 00:56:26,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1927 states. [2018-10-24 00:56:27,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1927 to 1888. [2018-10-24 00:56:27,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1888 states. [2018-10-24 00:56:27,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1888 states to 1888 states and 2674 transitions. [2018-10-24 00:56:27,031 INFO L78 Accepts]: Start accepts. Automaton has 1888 states and 2674 transitions. Word has length 169 [2018-10-24 00:56:27,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 00:56:27,032 INFO L481 AbstractCegarLoop]: Abstraction has 1888 states and 2674 transitions. [2018-10-24 00:56:27,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 00:56:27,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1888 states and 2674 transitions. [2018-10-24 00:56:27,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-10-24 00:56:27,041 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 00:56:27,042 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, 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] [2018-10-24 00:56:27,042 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 00:56:27,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:56:27,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1363120665, now seen corresponding path program 1 times [2018-10-24 00:56:27,043 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 00:56:27,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:56:27,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 00:56:27,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 00:56:27,044 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 00:56:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 00:56:27,440 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-10-24 00:56:27,622 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 156 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 00:56:27,623 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 00:56:27,623 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 00:56:27,624 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 210 with the following transitions: [2018-10-24 00:56:27,626 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], [269], [271], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [546], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 00:56:27,711 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 00:56:27,711 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 00:56:30,256 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 00:56:44,529 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 00:56:44,531 INFO L272 AbstractInterpreter]: Visited 91 different actions 516 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 00:56:44,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 00:56:44,576 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 00:56:47,905 INFO L232 lantSequenceWeakener]: Weakened 22 states. On average, predicates are now at 77.69% of their original sizes. [2018-10-24 00:56:47,908 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 00:57:15,220 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 00:57:15,221 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 00:57:15,222 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [12] total 28 [2018-10-24 00:57:15,222 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 00:57:15,223 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-24 00:57:15,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-24 00:57:15,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2018-10-24 00:57:15,224 INFO L87 Difference]: Start difference. First operand 1888 states and 2674 transitions. Second operand 18 states. Received shutdown request... [2018-10-24 01:00:12,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-24 01:00:12,595 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 01:00:12,601 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 01:00:12,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 01:00:12 BoogieIcfgContainer [2018-10-24 01:00:12,602 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 01:00:12,603 INFO L168 Benchmark]: Toolchain (without parser) took 243959.99 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 3.3 GB in the end (delta: -1.8 GB). Peak memory consumption was 823.1 MB. Max. memory is 7.1 GB. [2018-10-24 01:00:12,604 INFO L168 Benchmark]: CDTParser took 0.22 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 01:00:12,605 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.03 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. [2018-10-24 01:00:12,606 INFO L168 Benchmark]: Boogie Procedure Inliner took 229.99 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 721.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -797.9 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2018-10-24 01:00:12,607 INFO L168 Benchmark]: Boogie Preprocessor took 124.45 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2018-10-24 01:00:12,607 INFO L168 Benchmark]: RCFGBuilder took 3449.08 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 133.5 MB). Peak memory consumption was 133.5 MB. Max. memory is 7.1 GB. [2018-10-24 01:00:12,608 INFO L168 Benchmark]: TraceAbstraction took 239425.27 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 730.4 MB. Max. memory is 7.1 GB. [2018-10-24 01:00:12,614 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 725.03 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 229.99 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 721.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -797.9 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.45 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3449.08 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 133.5 MB). Peak memory consumption was 133.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 239425.27 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 730.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 121]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 121). Cancelled while BasicCegarLoop was constructing difference of abstraction (1888states) and FLOYD_HOARE automaton (currently 21 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (2336 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 239.3s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 188.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 458 SDtfs, 3810 SDslu, 451 SDs, 0 SdLazy, 5039 SolverSat, 1072 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 97.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 247 GetRequests, 173 SyntacticMatches, 32 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 28.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1888occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 16.9s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9943300585284283 AbsIntWeakeningRatio, 0.125 AbsIntAvgWeakeningVarsNumRemoved, 209.16346153846155 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 85 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 698 NumberOfCodeBlocks, 698 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 693 ConstructedInterpolants, 0 QuantifiedInterpolants, 838478 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 273/275 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown