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/Problem01_label24_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 19:13:47,014 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 19:13:47,016 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 19:13:47,032 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 19:13:47,032 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 19:13:47,033 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 19:13:47,034 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 19:13:47,036 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 19:13:47,038 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 19:13:47,039 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 19:13:47,040 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 19:13:47,040 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 19:13:47,041 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 19:13:47,042 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 19:13:47,043 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 19:13:47,044 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 19:13:47,045 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 19:13:47,047 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 19:13:47,053 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 19:13:47,054 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 19:13:47,055 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 19:13:47,059 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 19:13:47,064 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 19:13:47,080 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 19:13:47,110 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 19:13:47,111 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 19:13:47,112 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 19:13:47,117 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 19:13:47,117 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 19:13:47,117 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 19:13:47,118 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 19:13:47,118 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 19:13:47,118 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 19:13:47,118 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 19:13:47,118 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 19:13:47,119 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 19:13:47,122 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 19:13:47,122 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 19:13:47,122 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 19:13:47,122 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 19:13:47,123 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 19:13:47,123 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 19:13:47,123 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 19:13:47,123 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 19:13:47,124 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 19:13:47,124 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 19:13:47,124 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 19:13:47,124 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 19:13:47,124 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:13:47,126 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 19:13:47,126 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 19:13:47,126 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 19:13:47,127 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 19:13:47,127 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 19:13:47,127 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 19:13:47,127 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 19:13:47,127 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 19:13:47,129 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 19:13:47,199 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 19:13:47,219 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 19:13:47,223 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 19:13:47,225 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 19:13:47,225 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 19:13:47,226 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label24_true-unreach-call_false-termination.c [2018-10-24 19:13:47,305 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a2828f39f/0375f587591a40a48f43136021e9e730/FLAGb9e4a3570 [2018-10-24 19:13:47,891 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 19:13:47,892 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label24_true-unreach-call_false-termination.c [2018-10-24 19:13:47,904 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a2828f39f/0375f587591a40a48f43136021e9e730/FLAGb9e4a3570 [2018-10-24 19:13:47,922 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a2828f39f/0375f587591a40a48f43136021e9e730 [2018-10-24 19:13:47,935 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 19:13:47,937 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 19:13:47,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 19:13:47,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 19:13:47,943 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 19:13:47,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:13:47" (1/1) ... [2018-10-24 19:13:47,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7472627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:13:47, skipping insertion in model container [2018-10-24 19:13:47,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:13:47" (1/1) ... [2018-10-24 19:13:47,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 19:13:48,014 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 19:13:48,471 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:13:48,476 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 19:13:48,620 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:13:48,639 INFO L193 MainTranslator]: Completed translation [2018-10-24 19:13:48,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:13:48 WrapperNode [2018-10-24 19:13:48,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 19:13:48,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 19:13:48,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 19:13:48,641 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 19:13:48,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:13:48" (1/1) ... [2018-10-24 19:13:48,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:13:48" (1/1) ... [2018-10-24 19:13:48,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 19:13:48,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 19:13:48,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 19:13:48,834 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 19:13:48,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:13:48" (1/1) ... [2018-10-24 19:13:48,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:13:48" (1/1) ... [2018-10-24 19:13:48,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:13:48" (1/1) ... [2018-10-24 19:13:48,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:13:48" (1/1) ... [2018-10-24 19:13:48,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:13:48" (1/1) ... [2018-10-24 19:13:48,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:13:48" (1/1) ... [2018-10-24 19:13:48,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:13:48" (1/1) ... [2018-10-24 19:13:48,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 19:13:48,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 19:13:48,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 19:13:48,934 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 19:13:48,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:13:48" (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 19:13:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 19:13:49,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 19:13:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 19:13:49,012 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 19:13:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 19:13:49,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 19:13:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 19:13:49,013 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 19:13:52,482 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 19:13:52,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:13:52 BoogieIcfgContainer [2018-10-24 19:13:52,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 19:13:52,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 19:13:52,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 19:13:52,492 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 19:13:52,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:13:47" (1/3) ... [2018-10-24 19:13:52,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d2057d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:13:52, skipping insertion in model container [2018-10-24 19:13:52,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:13:48" (2/3) ... [2018-10-24 19:13:52,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d2057d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:13:52, skipping insertion in model container [2018-10-24 19:13:52,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:13:52" (3/3) ... [2018-10-24 19:13:52,497 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label24_true-unreach-call_false-termination.c [2018-10-24 19:13:52,508 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 19:13:52,518 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 19:13:52,537 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 19:13:52,593 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 19:13:52,593 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 19:13:52,593 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 19:13:52,594 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 19:13:52,594 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 19:13:52,594 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 19:13:52,594 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 19:13:52,594 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 19:13:52,623 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-10-24 19:13:52,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-24 19:13:52,637 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:13:52,638 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:13:52,641 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:13:52,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:13:52,647 INFO L82 PathProgramCache]: Analyzing trace with hash 329210229, now seen corresponding path program 1 times [2018-10-24 19:13:52,649 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:13:52,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:13:52,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:13:52,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:13:52,699 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:13:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:13:53,514 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 19:13:53,517 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:13:53,518 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 19:13:53,518 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:13:53,525 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 19:13:53,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 19:13:53,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 19:13:53,544 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 4 states. [2018-10-24 19:13:55,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:13:55,861 INFO L93 Difference]: Finished difference Result 702 states and 1227 transitions. [2018-10-24 19:13:55,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:13:55,865 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 105 [2018-10-24 19:13:55,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:13:55,887 INFO L225 Difference]: With dead ends: 702 [2018-10-24 19:13:55,887 INFO L226 Difference]: Without dead ends: 488 [2018-10-24 19:13:55,895 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 19:13:55,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2018-10-24 19:13:55,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 340. [2018-10-24 19:13:55,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-10-24 19:13:55,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 565 transitions. [2018-10-24 19:13:55,971 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 565 transitions. Word has length 105 [2018-10-24 19:13:55,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:13:55,972 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 565 transitions. [2018-10-24 19:13:55,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 19:13:55,973 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 565 transitions. [2018-10-24 19:13:55,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-10-24 19:13:55,980 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:13:55,980 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:13:55,981 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:13:55,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:13:55,981 INFO L82 PathProgramCache]: Analyzing trace with hash 129117814, now seen corresponding path program 1 times [2018-10-24 19:13:55,982 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:13:55,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:13:55,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:13:55,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:13:55,983 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:13:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:13:56,226 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:13:56,226 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:13:56,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:13:56,227 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:13:56,229 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:13:56,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:13:56,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:13:56,230 INFO L87 Difference]: Start difference. First operand 340 states and 565 transitions. Second operand 6 states. [2018-10-24 19:13:58,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:13:58,293 INFO L93 Difference]: Finished difference Result 1070 states and 1865 transitions. [2018-10-24 19:13:58,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:13:58,296 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2018-10-24 19:13:58,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:13:58,307 INFO L225 Difference]: With dead ends: 1070 [2018-10-24 19:13:58,307 INFO L226 Difference]: Without dead ends: 736 [2018-10-24 19:13:58,311 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 19:13:58,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2018-10-24 19:13:58,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 719. [2018-10-24 19:13:58,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2018-10-24 19:13:58,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 1163 transitions. [2018-10-24 19:13:58,371 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 1163 transitions. Word has length 116 [2018-10-24 19:13:58,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:13:58,372 INFO L481 AbstractCegarLoop]: Abstraction has 719 states and 1163 transitions. [2018-10-24 19:13:58,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:13:58,372 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 1163 transitions. [2018-10-24 19:13:58,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-10-24 19:13:58,378 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:13:58,378 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:13:58,380 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:13:58,380 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:13:58,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1599647070, now seen corresponding path program 1 times [2018-10-24 19:13:58,381 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:13:58,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:13:58,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:13:58,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:13:58,385 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:13:58,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:13:58,747 WARN L179 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:13:58,861 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:13:58,862 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:13:58,862 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:13:58,863 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 118 with the following transitions: [2018-10-24 19:13:58,866 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [477], [479], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-24 19:13:58,940 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:13:58,940 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 19:14:33,874 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 19:14:33,875 INFO L272 AbstractInterpreter]: Visited 108 different actions 172 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-10-24 19:14:33,886 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:14:33,886 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 19:14:39,417 INFO L232 lantSequenceWeakener]: Weakened 26 states. On average, predicates are now at 83.17% of their original sizes. [2018-10-24 19:14:39,417 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 19:15:51,984 INFO L413 sIntCurrentIteration]: We have 116 unified AI predicates [2018-10-24 19:15:51,985 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 19:15:51,986 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 19:15:51,986 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [7] total 24 [2018-10-24 19:15:51,987 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:15:51,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-24 19:15:51,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-24 19:15:51,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2018-10-24 19:15:51,988 INFO L87 Difference]: Start difference. First operand 719 states and 1163 transitions. Second operand 19 states. Received shutdown request... [2018-10-24 19:18:12,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-24 19:18:12,906 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 19:18:12,912 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 19:18:12,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:18:12 BoogieIcfgContainer [2018-10-24 19:18:12,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 19:18:12,914 INFO L168 Benchmark]: Toolchain (without parser) took 264977.33 ms. Allocated memory was 1.5 GB in the beginning and 3.1 GB in the end (delta: 1.6 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -627.4 MB). Peak memory consumption was 936.6 MB. Max. memory is 7.1 GB. [2018-10-24 19:18:12,915 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 19:18:12,916 INFO L168 Benchmark]: CACSL2BoogieTranslator took 701.36 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 19:18:12,916 INFO L168 Benchmark]: Boogie Procedure Inliner took 193.08 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 718.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -793.7 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2018-10-24 19:18:12,918 INFO L168 Benchmark]: Boogie Preprocessor took 99.17 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 19:18:12,918 INFO L168 Benchmark]: RCFGBuilder took 3552.39 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 105.6 MB). Peak memory consumption was 105.6 MB. Max. memory is 7.1 GB. [2018-10-24 19:18:12,919 INFO L168 Benchmark]: TraceAbstraction took 260425.98 ms. Allocated memory was 2.2 GB in the beginning and 3.1 GB in the end (delta: 845.7 MB). Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 29.1 MB). Peak memory consumption was 874.7 MB. Max. memory is 7.1 GB. [2018-10-24 19:18:12,925 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 701.36 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 193.08 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 718.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -793.7 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.17 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3552.39 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 105.6 MB). Peak memory consumption was 105.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 260425.98 ms. Allocated memory was 2.2 GB in the beginning and 3.1 GB in the end (delta: 845.7 MB). Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 29.1 MB). Peak memory consumption was 874.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 470]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 470). Cancelled while BasicCegarLoop was constructing difference of abstraction (719states) and FLOYD_HOARE automaton (currently 19 states, 19 states before enhancement),while ReachableStatesComputation was computing reachable states (207 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 260.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 145.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 227 SDtfs, 1270 SDslu, 199 SDs, 0 SdLazy, 2053 SolverSat, 497 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 60.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 143 GetRequests, 86 SyntacticMatches, 20 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 86.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=719occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 35.0s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9936170851856303 AbsIntWeakeningRatio, 0.25 AbsIntAvgWeakeningVarsNumRemoved, 604.8706896551724 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 165 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 338 NumberOfCodeBlocks, 338 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 335 ConstructedInterpolants, 0 QuantifiedInterpolants, 163979 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 11/17 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown