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_label46_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 19:17:49,236 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 19:17:49,238 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 19:17:49,250 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 19:17:49,251 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 19:17:49,252 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 19:17:49,253 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 19:17:49,255 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 19:17:49,257 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 19:17:49,257 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 19:17:49,260 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 19:17:49,261 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 19:17:49,262 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 19:17:49,265 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 19:17:49,268 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 19:17:49,269 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 19:17:49,271 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 19:17:49,279 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 19:17:49,282 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 19:17:49,283 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 19:17:49,285 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 19:17:49,286 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 19:17:49,289 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 19:17:49,301 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 19:17:49,325 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 19:17:49,326 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 19:17:49,327 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 19:17:49,327 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 19:17:49,327 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 19:17:49,328 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 19:17:49,328 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 19:17:49,328 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 19:17:49,328 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 19:17:49,329 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 19:17:49,329 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 19:17:49,329 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 19:17:49,330 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 19:17:49,330 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 19:17:49,330 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 19:17:49,330 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 19:17:49,331 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 19:17:49,331 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 19:17:49,331 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 19:17:49,331 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 19:17:49,331 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 19:17:49,332 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 19:17:49,332 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 19:17:49,332 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 19:17:49,332 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:17:49,332 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 19:17:49,333 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 19:17:49,333 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 19:17:49,333 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 19:17:49,333 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 19:17:49,334 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 19:17:49,334 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 19:17:49,334 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 19:17:49,334 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 19:17:49,385 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 19:17:49,403 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 19:17:49,409 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 19:17:49,411 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 19:17:49,411 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 19:17:49,412 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label46_true-unreach-call_false-termination.c [2018-10-24 19:17:49,483 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7186c0ae0/e77036a06e734b7783c3f70f6de116ae/FLAG1c9a8b60b [2018-10-24 19:17:50,086 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 19:17:50,087 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label46_true-unreach-call_false-termination.c [2018-10-24 19:17:50,110 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7186c0ae0/e77036a06e734b7783c3f70f6de116ae/FLAG1c9a8b60b [2018-10-24 19:17:50,126 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7186c0ae0/e77036a06e734b7783c3f70f6de116ae [2018-10-24 19:17:50,138 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 19:17:50,140 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 19:17:50,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 19:17:50,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 19:17:50,144 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 19:17:50,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:17:50" (1/1) ... [2018-10-24 19:17:50,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d8d5e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:50, skipping insertion in model container [2018-10-24 19:17:50,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:17:50" (1/1) ... [2018-10-24 19:17:50,159 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 19:17:50,240 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 19:17:50,739 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:17:50,755 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 19:17:50,898 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:17:50,920 INFO L193 MainTranslator]: Completed translation [2018-10-24 19:17:50,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:50 WrapperNode [2018-10-24 19:17:50,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 19:17:50,922 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 19:17:50,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 19:17:50,924 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 19:17:50,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:50" (1/1) ... [2018-10-24 19:17:50,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:50" (1/1) ... [2018-10-24 19:17:51,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 19:17:51,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 19:17:51,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 19:17:51,178 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 19:17:51,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:50" (1/1) ... [2018-10-24 19:17:51,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:50" (1/1) ... [2018-10-24 19:17:51,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:50" (1/1) ... [2018-10-24 19:17:51,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:50" (1/1) ... [2018-10-24 19:17:51,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:50" (1/1) ... [2018-10-24 19:17:51,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:50" (1/1) ... [2018-10-24 19:17:51,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:50" (1/1) ... [2018-10-24 19:17:51,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 19:17:51,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 19:17:51,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 19:17:51,288 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 19:17:51,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:50" (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 19:17:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 19:17:51,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 19:17:51,369 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 19:17:51,370 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 19:17:51,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 19:17:51,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 19:17:51,371 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 19:17:51,372 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 19:17:55,020 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 19:17:55,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:17:55 BoogieIcfgContainer [2018-10-24 19:17:55,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 19:17:55,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 19:17:55,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 19:17:55,025 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 19:17:55,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:17:50" (1/3) ... [2018-10-24 19:17:55,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1adc325c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:17:55, skipping insertion in model container [2018-10-24 19:17:55,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:50" (2/3) ... [2018-10-24 19:17:55,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1adc325c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:17:55, skipping insertion in model container [2018-10-24 19:17:55,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:17:55" (3/3) ... [2018-10-24 19:17:55,029 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label46_true-unreach-call_false-termination.c [2018-10-24 19:17:55,041 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 19:17:55,052 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 19:17:55,071 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 19:17:55,122 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 19:17:55,122 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 19:17:55,123 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 19:17:55,123 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 19:17:55,123 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 19:17:55,123 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 19:17:55,123 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 19:17:55,124 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 19:17:55,169 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-10-24 19:17:55,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-10-24 19:17:55,182 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:17:55,184 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:17:55,186 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:17:55,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:17:55,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1130401459, now seen corresponding path program 1 times [2018-10-24 19:17:55,194 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:17:55,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:17:55,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:17:55,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:17:55,247 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:17:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:17:55,807 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 19:17:55,810 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:17:55,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 19:17:55,810 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:17:55,818 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 19:17:55,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 19:17:55,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:17:55,841 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-10-24 19:17:58,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:17:58,040 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-10-24 19:17:58,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 19:17:58,042 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2018-10-24 19:17:58,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:17:58,061 INFO L225 Difference]: With dead ends: 550 [2018-10-24 19:17:58,061 INFO L226 Difference]: Without dead ends: 340 [2018-10-24 19:17:58,068 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:17:58,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-10-24 19:17:58,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-10-24 19:17:58,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-10-24 19:17:58,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 569 transitions. [2018-10-24 19:17:58,158 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 569 transitions. Word has length 119 [2018-10-24 19:17:58,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:17:58,163 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 569 transitions. [2018-10-24 19:17:58,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 19:17:58,163 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 569 transitions. [2018-10-24 19:17:58,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-10-24 19:17:58,180 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:17:58,182 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:17:58,182 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:17:58,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:17:58,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1960216906, now seen corresponding path program 1 times [2018-10-24 19:17:58,184 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:17:58,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:17:58,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:17:58,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:17:58,187 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:17:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:17:58,506 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:17:58,567 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:17:58,567 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:17:58,568 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 19:17:58,568 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:17:58,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 19:17:58,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 19:17:58,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 19:17:58,573 INFO L87 Difference]: Start difference. First operand 340 states and 569 transitions. Second operand 5 states. [2018-10-24 19:18:00,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:18:00,536 INFO L93 Difference]: Finished difference Result 1079 states and 1888 transitions. [2018-10-24 19:18:00,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:18:00,540 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2018-10-24 19:18:00,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:18:00,550 INFO L225 Difference]: With dead ends: 1079 [2018-10-24 19:18:00,550 INFO L226 Difference]: Without dead ends: 745 [2018-10-24 19:18:00,557 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 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 19:18:00,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2018-10-24 19:18:00,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 733. [2018-10-24 19:18:00,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2018-10-24 19:18:00,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1163 transitions. [2018-10-24 19:18:00,619 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1163 transitions. Word has length 129 [2018-10-24 19:18:00,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:18:00,619 INFO L481 AbstractCegarLoop]: Abstraction has 733 states and 1163 transitions. [2018-10-24 19:18:00,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 19:18:00,619 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1163 transitions. [2018-10-24 19:18:00,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-10-24 19:18:00,626 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:18:00,627 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:18:00,627 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:18:00,627 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:18:00,627 INFO L82 PathProgramCache]: Analyzing trace with hash -405480129, now seen corresponding path program 1 times [2018-10-24 19:18:00,627 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:18:00,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:18:00,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:18:00,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:18:00,629 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:18:00,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:18:00,858 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:18:00,859 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:18:00,859 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:18:00,860 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-10-24 19:18:00,862 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [65], [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], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [589], [591], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-24 19:18:00,956 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:18:00,956 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 19:18:34,745 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 19:18:34,747 INFO L272 AbstractInterpreter]: Visited 123 different actions 188 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 19:18:34,763 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:18:34,763 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 19:18:42,900 INFO L232 lantSequenceWeakener]: Weakened 55 states. On average, predicates are now at 82.14% of their original sizes. [2018-10-24 19:18:42,901 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 19:20:18,046 INFO L413 sIntCurrentIteration]: We have 154 unified AI predicates [2018-10-24 19:20:18,047 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 19:20:18,048 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 19:20:18,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [6] total 26 [2018-10-24 19:20:18,049 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:20:18,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-10-24 19:20:18,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-10-24 19:20:18,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2018-10-24 19:20:18,051 INFO L87 Difference]: Start difference. First operand 733 states and 1163 transitions. Second operand 22 states. Received shutdown request... [2018-10-24 19:22:12,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-24 19:22:12,470 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 19:22:12,476 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 19:22:12,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:22:12 BoogieIcfgContainer [2018-10-24 19:22:12,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 19:22:12,478 INFO L168 Benchmark]: Toolchain (without parser) took 262338.94 ms. Allocated memory was 1.5 GB in the beginning and 3.0 GB in the end (delta: 1.4 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -222.7 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-24 19:22:12,479 INFO L168 Benchmark]: CDTParser took 0.21 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 19:22:12,480 INFO L168 Benchmark]: CACSL2BoogieTranslator took 781.38 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 19:22:12,482 INFO L168 Benchmark]: Boogie Procedure Inliner took 255.36 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 701.5 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -789.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. [2018-10-24 19:22:12,483 INFO L168 Benchmark]: Boogie Preprocessor took 108.77 ms. Allocated memory is still 2.2 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 19:22:12,483 INFO L168 Benchmark]: RCFGBuilder took 3733.73 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 108.1 MB). Peak memory consumption was 108.1 MB. Max. memory is 7.1 GB. [2018-10-24 19:22:12,484 INFO L168 Benchmark]: TraceAbstraction took 257455.21 ms. Allocated memory was 2.2 GB in the beginning and 3.0 GB in the end (delta: 744.5 MB). Free memory was 2.0 GB in the beginning and 1.6 GB in the end (delta: 426.5 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-24 19:22:12,489 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 781.38 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 255.36 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 701.5 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -789.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.77 ms. Allocated memory is still 2.2 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3733.73 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 108.1 MB). Peak memory consumption was 108.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 257455.21 ms. Allocated memory was 2.2 GB in the beginning and 3.0 GB in the end (delta: 744.5 MB). Free memory was 2.0 GB in the beginning and 1.6 GB in the end (delta: 426.5 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 512]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 512). Cancelled while BasicCegarLoop was constructing difference of abstraction (733states) and FLOYD_HOARE automaton (currently 18 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (73 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 257.3s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 118.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 205 SDtfs, 1023 SDslu, 164 SDs, 0 SdLazy, 1606 SolverSat, 379 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 37.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 180 GetRequests, 121 SyntacticMatches, 20 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 116.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=733occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 33.9s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9942531336259559 AbsIntWeakeningRatio, 0.22727272727272727 AbsIntAvgWeakeningVarsNumRemoved, 461.45454545454544 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 403 NumberOfCodeBlocks, 403 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 400 ConstructedInterpolants, 0 QuantifiedInterpolants, 116996 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 47/49 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown