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/Problem02_label31_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 23:25:15,431 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 23:25:15,433 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 23:25:15,445 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 23:25:15,445 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 23:25:15,447 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 23:25:15,448 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 23:25:15,450 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 23:25:15,451 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 23:25:15,452 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 23:25:15,453 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 23:25:15,453 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 23:25:15,454 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 23:25:15,455 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 23:25:15,457 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 23:25:15,457 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 23:25:15,458 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 23:25:15,460 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 23:25:15,462 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 23:25:15,464 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 23:25:15,465 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 23:25:15,466 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 23:25:15,469 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 23:25:15,478 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 [2018-10-23 23:25:15,494 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 23:25:15,495 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 23:25:15,496 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 23:25:15,496 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 23:25:15,496 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 23:25:15,496 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 23:25:15,496 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 23:25:15,497 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 23:25:15,497 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 23:25:15,497 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 23:25:15,497 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 23:25:15,497 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 23:25:15,498 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 23:25:15,498 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 23:25:15,498 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 23:25:15,498 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 23:25:15,499 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 23:25:15,499 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 23:25:15,499 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 23:25:15,499 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 23:25:15,500 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 23:25:15,500 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 23:25:15,500 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 23:25:15,500 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 23:25:15,500 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 23:25:15,500 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 23:25:15,501 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 23:25:15,501 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 23:25:15,501 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 23:25:15,501 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 23:25:15,501 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 23:25:15,502 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 23:25:15,502 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 23:25:15,502 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 23:25:15,574 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 23:25:15,590 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 23:25:15,596 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 23:25:15,597 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 23:25:15,598 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 23:25:15,598 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label31_true-unreach-call_false-termination.c [2018-10-23 23:25:15,672 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5e1021bca/0c8bffe220444921888e0c9fc058455c/FLAG29c721ed2 [2018-10-23 23:25:16,265 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 23:25:16,266 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label31_true-unreach-call_false-termination.c [2018-10-23 23:25:16,292 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5e1021bca/0c8bffe220444921888e0c9fc058455c/FLAG29c721ed2 [2018-10-23 23:25:16,309 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5e1021bca/0c8bffe220444921888e0c9fc058455c [2018-10-23 23:25:16,320 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 23:25:16,321 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 23:25:16,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 23:25:16,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 23:25:16,326 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 23:25:16,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:25:16" (1/1) ... [2018-10-23 23:25:16,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f6a7e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:16, skipping insertion in model container [2018-10-23 23:25:16,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:25:16" (1/1) ... [2018-10-23 23:25:16,339 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 23:25:16,397 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 23:25:16,891 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 23:25:16,896 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 23:25:16,985 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 23:25:17,004 INFO L193 MainTranslator]: Completed translation [2018-10-23 23:25:17,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:17 WrapperNode [2018-10-23 23:25:17,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 23:25:17,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 23:25:17,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 23:25:17,006 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 23:25:17,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:17" (1/1) ... [2018-10-23 23:25:17,046 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:17" (1/1) ... [2018-10-23 23:25:17,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 23:25:17,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 23:25:17,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 23:25:17,219 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 23:25:17,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:17" (1/1) ... [2018-10-23 23:25:17,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:17" (1/1) ... [2018-10-23 23:25:17,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:17" (1/1) ... [2018-10-23 23:25:17,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:17" (1/1) ... [2018-10-23 23:25:17,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:17" (1/1) ... [2018-10-23 23:25:17,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:17" (1/1) ... [2018-10-23 23:25:17,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:17" (1/1) ... [2018-10-23 23:25:17,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 23:25:17,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 23:25:17,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 23:25:17,321 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 23:25:17,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:17" (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 [2018-10-23 23:25:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 23:25:17,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 23:25:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 23:25:17,402 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 23:25:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 23:25:17,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 23:25:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 23:25:17,404 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 23:25:20,786 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 23:25:20,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:25:20 BoogieIcfgContainer [2018-10-23 23:25:20,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 23:25:20,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 23:25:20,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 23:25:20,792 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 23:25:20,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:25:16" (1/3) ... [2018-10-23 23:25:20,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3cfec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:25:20, skipping insertion in model container [2018-10-23 23:25:20,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:25:17" (2/3) ... [2018-10-23 23:25:20,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3cfec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:25:20, skipping insertion in model container [2018-10-23 23:25:20,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:25:20" (3/3) ... [2018-10-23 23:25:20,796 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label31_true-unreach-call_false-termination.c [2018-10-23 23:25:20,809 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 23:25:20,819 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 23:25:20,837 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 23:25:20,875 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 23:25:20,876 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 23:25:20,876 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 23:25:20,876 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 23:25:20,876 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 23:25:20,877 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 23:25:20,877 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 23:25:20,877 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 23:25:20,905 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-10-23 23:25:20,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-23 23:25:20,921 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:25:20,922 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, 1, 1, 1, 1] [2018-10-23 23:25:20,925 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:25:20,935 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:25:20,935 INFO L82 PathProgramCache]: Analyzing trace with hash -639549745, now seen corresponding path program 1 times [2018-10-23 23:25:20,938 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:25:21,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:25:21,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:25:21,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:25:21,003 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:25:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:25:21,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:25:21,666 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:25:21,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 23:25:21,667 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:25:21,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 23:25:21,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 23:25:21,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 23:25:21,693 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 3 states. [2018-10-23 23:25:23,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:25:23,717 INFO L93 Difference]: Finished difference Result 626 states and 1068 transitions. [2018-10-23 23:25:23,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 23:25:23,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2018-10-23 23:25:23,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:25:23,744 INFO L225 Difference]: With dead ends: 626 [2018-10-23 23:25:23,744 INFO L226 Difference]: Without dead ends: 387 [2018-10-23 23:25:23,751 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 [2018-10-23 23:25:23,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2018-10-23 23:25:23,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 383. [2018-10-23 23:25:23,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2018-10-23 23:25:23,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 644 transitions. [2018-10-23 23:25:23,843 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 644 transitions. Word has length 123 [2018-10-23 23:25:23,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:25:23,844 INFO L481 AbstractCegarLoop]: Abstraction has 383 states and 644 transitions. [2018-10-23 23:25:23,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 23:25:23,844 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 644 transitions. [2018-10-23 23:25:23,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-10-23 23:25:23,857 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:25:23,858 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:25:23,858 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:25:23,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:25:23,859 INFO L82 PathProgramCache]: Analyzing trace with hash 533241592, now seen corresponding path program 1 times [2018-10-23 23:25:23,859 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:25:23,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:25:23,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:25:23,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:25:23,861 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:25:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:25:24,084 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:25:24,085 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 23:25:24,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 23:25:24,085 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:25:24,087 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 23:25:24,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 23:25:24,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 23:25:24,088 INFO L87 Difference]: Start difference. First operand 383 states and 644 transitions. Second operand 6 states. [2018-10-23 23:25:26,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:25:26,115 INFO L93 Difference]: Finished difference Result 1195 states and 2114 transitions. [2018-10-23 23:25:26,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 23:25:26,119 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 144 [2018-10-23 23:25:26,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:25:26,131 INFO L225 Difference]: With dead ends: 1195 [2018-10-23 23:25:26,131 INFO L226 Difference]: Without dead ends: 818 [2018-10-23 23:25:26,139 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 [2018-10-23 23:25:26,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2018-10-23 23:25:26,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 799. [2018-10-23 23:25:26,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 799 states. [2018-10-23 23:25:26,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1290 transitions. [2018-10-23 23:25:26,206 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1290 transitions. Word has length 144 [2018-10-23 23:25:26,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:25:26,207 INFO L481 AbstractCegarLoop]: Abstraction has 799 states and 1290 transitions. [2018-10-23 23:25:26,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 23:25:26,207 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1290 transitions. [2018-10-23 23:25:26,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-10-23 23:25:26,219 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:25:26,219 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:25:26,221 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:25:26,222 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:25:26,222 INFO L82 PathProgramCache]: Analyzing trace with hash 132953093, now seen corresponding path program 1 times [2018-10-23 23:25:26,222 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:25:26,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:25:26,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:25:26,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:25:26,224 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:25:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:25:26,547 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:25:26,547 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 23:25:26,547 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 23:25:26,548 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 154 with the following transitions: [2018-10-23 23:25:26,551 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [45], [50], [52], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [655], [657], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-10-23 23:25:26,625 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 23:25:26,626 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 23:25:38,489 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 23:25:38,491 INFO L272 AbstractInterpreter]: Visited 124 different actions 124 times. Never merged. Never widened. Never found a fixpoint. Largest state had 38 variables. [2018-10-23 23:25:38,501 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:25:38,501 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 23:25:42,297 INFO L232 lantSequenceWeakener]: Weakened 130 states. On average, predicates are now at 81.46% of their original sizes. [2018-10-23 23:25:42,297 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 23:25:45,852 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 23:25:45,854 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 23:25:45,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-10-23 23:25:45,854 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 23:25:45,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-23 23:25:45,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-23 23:25:45,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2018-10-23 23:25:45,856 INFO L87 Difference]: Start difference. First operand 799 states and 1290 transitions. Second operand 13 states. [2018-10-23 23:27:11,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 23:27:11,969 INFO L93 Difference]: Finished difference Result 1892 states and 3057 transitions. [2018-10-23 23:27:11,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-23 23:27:11,969 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 153 [2018-10-23 23:27:11,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 23:27:11,976 INFO L225 Difference]: With dead ends: 1892 [2018-10-23 23:27:11,977 INFO L226 Difference]: Without dead ends: 1099 [2018-10-23 23:27:11,980 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 163 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2018-10-23 23:27:11,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2018-10-23 23:27:12,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 946. [2018-10-23 23:27:12,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 946 states. [2018-10-23 23:27:12,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1448 transitions. [2018-10-23 23:27:12,087 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1448 transitions. Word has length 153 [2018-10-23 23:27:12,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 23:27:12,087 INFO L481 AbstractCegarLoop]: Abstraction has 946 states and 1448 transitions. [2018-10-23 23:27:12,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-23 23:27:12,088 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1448 transitions. [2018-10-23 23:27:12,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-10-23 23:27:12,093 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 23:27:12,093 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 23:27:12,093 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 23:27:12,094 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:27:12,094 INFO L82 PathProgramCache]: Analyzing trace with hash 2026664401, now seen corresponding path program 1 times [2018-10-23 23:27:12,094 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 23:27:12,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:27:12,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 23:27:12,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 23:27:12,096 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 23:27:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 23:27:12,330 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 23:27:12,330 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 23:27:12,331 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 23:27:12,331 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 159 with the following transitions: [2018-10-23 23:27:12,331 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [45], [50], [52], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [635], [643], [651], [655], [657], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-10-23 23:27:12,338 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 23:27:12,339 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 23:27:39,788 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 23:27:39,788 INFO L272 AbstractInterpreter]: Visited 127 different actions 248 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-10-23 23:27:39,798 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 23:27:39,798 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 23:27:43,968 INFO L232 lantSequenceWeakener]: Weakened 47 states. On average, predicates are now at 82.91% of their original sizes. [2018-10-23 23:27:43,969 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-23 23:29:34,682 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 23:29:34,687 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 23:29:34,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:29:34 BoogieIcfgContainer [2018-10-23 23:29:34,687 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 23:29:34,688 INFO L168 Benchmark]: Toolchain (without parser) took 258368.00 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -728.1 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-10-23 23:29:34,690 INFO L168 Benchmark]: CDTParser took 0.67 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. [2018-10-23 23:29:34,691 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.27 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-23 23:29:34,692 INFO L168 Benchmark]: Boogie Procedure Inliner took 212.16 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -834.1 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2018-10-23 23:29:34,693 INFO L168 Benchmark]: Boogie Preprocessor took 102.16 ms. Allocated memory is still 2.3 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. [2018-10-23 23:29:34,694 INFO L168 Benchmark]: RCFGBuilder took 3466.62 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 105.1 MB). Peak memory consumption was 105.1 MB. Max. memory is 7.1 GB. [2018-10-23 23:29:34,695 INFO L168 Benchmark]: TraceAbstraction took 253898.98 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 2.1 GB in the beginning and 2.2 GB in the end (delta: -44.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-23 23:29:34,700 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67 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 683.27 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 212.16 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -834.1 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.16 ms. Allocated memory is still 2.3 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 3466.62 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 105.1 MB). Peak memory consumption was 105.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 253898.98 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 2.1 GB in the beginning and 2.2 GB in the end (delta: -44.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 520]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 520). Cancelled while BasicCegarLoop was analyzing trace of length 159 with TraceHistMax 3,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 23 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 253.8s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 90.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 507 SDtfs, 2183 SDslu, 473 SDs, 0 SdLazy, 1989 SolverSat, 574 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 45.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 178 GetRequests, 145 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 6.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=946occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 39.4s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9945264631008113 AbsIntWeakeningRatio, 0.22006472491909385 AbsIntAvgWeakeningVarsNumRemoved, 1453.822006472492 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 176 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 420 NumberOfCodeBlocks, 420 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 417 ConstructedInterpolants, 0 QuantifiedInterpolants, 131195 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 45/47 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown