java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label56_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 21:55:39,561 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 21:55:39,563 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 21:55:39,581 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 21:55:39,581 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 21:55:39,582 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 21:55:39,583 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 21:55:39,585 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 21:55:39,587 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 21:55:39,587 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 21:55:39,588 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 21:55:39,589 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 21:55:39,590 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 21:55:39,591 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 21:55:39,592 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 21:55:39,593 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 21:55:39,593 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 21:55:39,595 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 21:55:39,597 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 21:55:39,599 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 21:55:39,600 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 21:55:39,602 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 21:55:39,606 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 21:55:39,607 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 21:55:39,607 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 21:55:39,608 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 21:55:39,611 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 21:55:39,615 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 21:55:39,615 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 21:55:39,617 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 21:55:39,617 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 21:55:39,617 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 21:55:39,618 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 21:55:39,618 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 21:55:39,619 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 21:55:39,620 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 21:55:39,620 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 21:55:39,635 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 21:55:39,635 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 21:55:39,636 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 21:55:39,636 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 21:55:39,637 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 21:55:39,637 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 21:55:39,637 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 21:55:39,637 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 21:55:39,637 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 21:55:39,638 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 21:55:39,638 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 21:55:39,638 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 21:55:39,639 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 21:55:39,639 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 21:55:39,639 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 21:55:39,639 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 21:55:39,639 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 21:55:39,640 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 21:55:39,640 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 21:55:39,640 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 21:55:39,640 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 21:55:39,640 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 21:55:39,641 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 21:55:39,641 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 21:55:39,641 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 21:55:39,641 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 21:55:39,644 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 21:55:39,645 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 21:55:39,645 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 21:55:39,645 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 21:55:39,645 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 21:55:39,645 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 21:55:39,646 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 21:55:39,689 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 21:55:39,702 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 21:55:39,705 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 21:55:39,707 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 21:55:39,708 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 21:55:39,709 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label56_true-unreach-call.c [2018-07-23 21:55:40,044 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fb1f941d/330a0e37acb642b3a7054733d761e2ea/FLAGe8f629188 [2018-07-23 21:55:40,306 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 21:55:40,307 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label56_true-unreach-call.c [2018-07-23 21:55:40,331 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fb1f941d/330a0e37acb642b3a7054733d761e2ea/FLAGe8f629188 [2018-07-23 21:55:40,353 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fb1f941d/330a0e37acb642b3a7054733d761e2ea [2018-07-23 21:55:40,363 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 21:55:40,364 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 21:55:40,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 21:55:40,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 21:55:40,373 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 21:55:40,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 09:55:40" (1/1) ... [2018-07-23 21:55:40,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c0fc1a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:55:40, skipping insertion in model container [2018-07-23 21:55:40,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 09:55:40" (1/1) ... [2018-07-23 21:55:40,599 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 21:55:40,860 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 21:55:40,877 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 21:55:41,057 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 21:55:41,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:55:41 WrapperNode [2018-07-23 21:55:41,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 21:55:41,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 21:55:41,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 21:55:41,116 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 21:55:41,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:55:41" (1/1) ... [2018-07-23 21:55:41,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:55:41" (1/1) ... [2018-07-23 21:55:41,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 21:55:41,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 21:55:41,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 21:55:41,245 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 21:55:41,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:55:41" (1/1) ... [2018-07-23 21:55:41,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:55:41" (1/1) ... [2018-07-23 21:55:41,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:55:41" (1/1) ... [2018-07-23 21:55:41,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:55:41" (1/1) ... [2018-07-23 21:55:41,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:55:41" (1/1) ... [2018-07-23 21:55:41,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:55:41" (1/1) ... [2018-07-23 21:55:41,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:55:41" (1/1) ... [2018-07-23 21:55:41,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 21:55:41,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 21:55:41,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 21:55:41,517 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 21:55:41,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:55:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-07-23 21:55:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 21:55:41,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 21:55:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-23 21:55:41,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-23 21:55:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 21:55:41,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 21:55:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 21:55:41,580 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 21:55:44,923 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 21:55:44,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 09:55:44 BoogieIcfgContainer [2018-07-23 21:55:44,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 21:55:44,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 21:55:44,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 21:55:44,940 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 21:55:44,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 09:55:40" (1/3) ... [2018-07-23 21:55:44,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b659cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 09:55:44, skipping insertion in model container [2018-07-23 21:55:44,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 09:55:41" (2/3) ... [2018-07-23 21:55:44,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b659cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 09:55:44, skipping insertion in model container [2018-07-23 21:55:44,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 09:55:44" (3/3) ... [2018-07-23 21:55:44,949 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label56_true-unreach-call.c [2018-07-23 21:55:44,961 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 21:55:44,973 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 21:55:45,021 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 21:55:45,022 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 21:55:45,023 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 21:55:45,023 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 21:55:45,023 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 21:55:45,023 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 21:55:45,024 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 21:55:45,024 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 21:55:45,024 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 21:55:45,054 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-07-23 21:55:45,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-07-23 21:55:45,062 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 21:55:45,069 INFO L353 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] [2018-07-23 21:55:45,069 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 21:55:45,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1189398212, now seen corresponding path program 1 times [2018-07-23 21:55:45,077 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 21:55:45,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:55:45,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:55:45,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:55:45,126 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 21:55:45,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:55:45,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 21:55:45,490 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 21:55:45,491 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 21:55:45,491 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 21:55:45,497 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 21:55:45,512 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 21:55:45,513 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 21:55:45,515 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-07-23 21:55:47,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 21:55:47,048 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-07-23 21:55:47,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 21:55:47,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-07-23 21:55:47,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 21:55:47,069 INFO L225 Difference]: With dead ends: 574 [2018-07-23 21:55:47,070 INFO L226 Difference]: Without dead ends: 356 [2018-07-23 21:55:47,076 INFO L573 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 [2018-07-23 21:55:47,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-07-23 21:55:47,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-07-23 21:55:47,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-07-23 21:55:47,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 607 transitions. [2018-07-23 21:55:47,173 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 607 transitions. Word has length 30 [2018-07-23 21:55:47,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 21:55:47,174 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 607 transitions. [2018-07-23 21:55:47,174 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 21:55:47,174 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 607 transitions. [2018-07-23 21:55:47,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-07-23 21:55:47,181 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 21:55:47,182 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 21:55:47,182 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 21:55:47,182 INFO L82 PathProgramCache]: Analyzing trace with hash 536301288, now seen corresponding path program 1 times [2018-07-23 21:55:47,183 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 21:55:47,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:55:47,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:55:47,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:55:47,187 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 21:55:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:55:47,633 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-23 21:55:47,633 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 21:55:47,634 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 21:55:47,635 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 119 with the following transitions: [2018-07-23 21:55:47,637 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-07-23 21:55:47,706 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 21:55:47,706 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 21:55:54,174 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 21:55:54,176 INFO L272 AbstractInterpreter]: Visited 92 different actions 92 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-23 21:55:54,207 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 21:55:58,016 INFO L232 lantSequenceWeakener]: Weakened 113 states. On average, predicates are now at 73.21% of their original sizes. [2018-07-23 21:55:58,017 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 21:55:58,421 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 21:55:58,422 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 21:55:58,423 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2018-07-23 21:55:58,423 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 21:55:58,425 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 21:55:58,425 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 21:55:58,425 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 21:55:58,425 INFO L87 Difference]: Start difference. First operand 356 states and 607 transitions. Second operand 7 states. [2018-07-23 21:56:00,156 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 21:56:17,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 21:56:17,638 INFO L93 Difference]: Finished difference Result 852 states and 1471 transitions. [2018-07-23 21:56:17,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 21:56:17,638 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2018-07-23 21:56:17,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 21:56:17,643 INFO L225 Difference]: With dead ends: 852 [2018-07-23 21:56:17,644 INFO L226 Difference]: Without dead ends: 502 [2018-07-23 21:56:17,646 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 118 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-23 21:56:17,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2018-07-23 21:56:17,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 500. [2018-07-23 21:56:17,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 500 states. [2018-07-23 21:56:17,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 757 transitions. [2018-07-23 21:56:17,684 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 757 transitions. Word has length 118 [2018-07-23 21:56:17,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 21:56:17,685 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 757 transitions. [2018-07-23 21:56:17,685 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 21:56:17,685 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 757 transitions. [2018-07-23 21:56:17,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-07-23 21:56:17,691 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 21:56:17,691 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 21:56:17,692 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 21:56:17,692 INFO L82 PathProgramCache]: Analyzing trace with hash -524938665, now seen corresponding path program 1 times [2018-07-23 21:56:17,692 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 21:56:17,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:56:17,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:56:17,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:56:17,694 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 21:56:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:56:18,070 WARN L169 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 21:56:18,351 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-07-23 21:56:18,351 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 21:56:18,352 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 21:56:18,352 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 190 with the following transitions: [2018-07-23 21:56:18,353 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-07-23 21:56:18,359 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 21:56:18,359 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 21:56:20,144 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 21:56:33,754 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 21:56:33,755 INFO L272 AbstractInterpreter]: Visited 96 different actions 186 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 21:56:33,795 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 21:56:41,383 INFO L232 lantSequenceWeakener]: Weakened 187 states. On average, predicates are now at 73.12% of their original sizes. [2018-07-23 21:56:41,384 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 21:56:43,153 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 21:56:43,154 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 21:56:43,154 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2018-07-23 21:56:43,154 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 21:56:43,155 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-23 21:56:43,155 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-23 21:56:43,155 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-07-23 21:56:43,156 INFO L87 Difference]: Start difference. First operand 500 states and 757 transitions. Second operand 10 states. [2018-07-23 21:57:15,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 21:57:15,546 INFO L93 Difference]: Finished difference Result 999 states and 1625 transitions. [2018-07-23 21:57:15,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 21:57:15,546 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 189 [2018-07-23 21:57:15,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 21:57:15,552 INFO L225 Difference]: With dead ends: 999 [2018-07-23 21:57:15,552 INFO L226 Difference]: Without dead ends: 649 [2018-07-23 21:57:15,553 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 195 GetRequests, 162 SyntacticMatches, 18 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-07-23 21:57:15,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2018-07-23 21:57:15,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 646. [2018-07-23 21:57:15,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 646 states. [2018-07-23 21:57:15,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 915 transitions. [2018-07-23 21:57:15,583 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 915 transitions. Word has length 189 [2018-07-23 21:57:15,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 21:57:15,584 INFO L471 AbstractCegarLoop]: Abstraction has 646 states and 915 transitions. [2018-07-23 21:57:15,584 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-23 21:57:15,584 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 915 transitions. [2018-07-23 21:57:15,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-07-23 21:57:15,589 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 21:57:15,592 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 21:57:15,592 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 21:57:15,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1669427612, now seen corresponding path program 1 times [2018-07-23 21:57:15,596 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 21:57:15,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:57:15,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:57:15,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:57:15,598 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 21:57:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:57:15,915 WARN L169 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 21:57:16,133 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 47 proven. 6 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-07-23 21:57:16,134 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 21:57:16,134 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 21:57:16,134 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 199 with the following transitions: [2018-07-23 21:57:16,134 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-07-23 21:57:16,139 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 21:57:16,139 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 21:57:26,222 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 21:57:26,222 INFO L272 AbstractInterpreter]: Visited 96 different actions 185 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 21:57:26,231 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 21:57:30,352 INFO L232 lantSequenceWeakener]: Weakened 196 states. On average, predicates are now at 73.1% of their original sizes. [2018-07-23 21:57:30,352 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 21:57:31,500 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 21:57:31,500 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 21:57:31,501 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 17 [2018-07-23 21:57:31,501 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 21:57:31,501 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 21:57:31,501 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 21:57:31,502 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-23 21:57:31,502 INFO L87 Difference]: Start difference. First operand 646 states and 915 transitions. Second operand 11 states. [2018-07-23 21:57:35,539 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 21:58:16,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 21:58:16,096 INFO L93 Difference]: Finished difference Result 1290 states and 2047 transitions. [2018-07-23 21:58:16,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 21:58:16,096 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 198 [2018-07-23 21:58:16,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 21:58:16,102 INFO L225 Difference]: With dead ends: 1290 [2018-07-23 21:58:16,102 INFO L226 Difference]: Without dead ends: 940 [2018-07-23 21:58:16,105 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 204 GetRequests, 170 SyntacticMatches, 18 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-07-23 21:58:16,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2018-07-23 21:58:16,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 937. [2018-07-23 21:58:16,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 937 states. [2018-07-23 21:58:16,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1222 transitions. [2018-07-23 21:58:16,145 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1222 transitions. Word has length 198 [2018-07-23 21:58:16,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 21:58:16,146 INFO L471 AbstractCegarLoop]: Abstraction has 937 states and 1222 transitions. [2018-07-23 21:58:16,146 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 21:58:16,146 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1222 transitions. [2018-07-23 21:58:16,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-07-23 21:58:16,150 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 21:58:16,151 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-23 21:58:16,151 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 21:58:16,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1442876396, now seen corresponding path program 1 times [2018-07-23 21:58:16,151 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 21:58:16,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:58:16,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:58:16,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:58:16,153 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 21:58:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:58:16,429 WARN L169 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 21:58:16,729 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-07-23 21:58:16,729 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 21:58:16,730 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 21:58:16,730 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 235 with the following transitions: [2018-07-23 21:58:16,730 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [566], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-07-23 21:58:16,735 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 21:58:16,735 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 21:58:21,736 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 21:58:36,313 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 21:58:36,314 INFO L272 AbstractInterpreter]: Visited 124 different actions 242 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 21:58:36,320 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 21:58:44,628 INFO L232 lantSequenceWeakener]: Weakened 232 states. On average, predicates are now at 73.04% of their original sizes. [2018-07-23 21:58:44,628 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 21:58:45,916 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 21:58:45,916 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 21:58:45,916 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [4] total 14 [2018-07-23 21:58:45,917 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 21:58:45,918 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-23 21:58:45,918 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-23 21:58:45,918 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-07-23 21:58:45,918 INFO L87 Difference]: Start difference. First operand 937 states and 1222 transitions. Second operand 12 states. [2018-07-23 21:59:16,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 21:59:16,216 INFO L93 Difference]: Finished difference Result 1438 states and 2093 transitions. [2018-07-23 21:59:16,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-23 21:59:16,217 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 234 [2018-07-23 21:59:16,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 21:59:16,222 INFO L225 Difference]: With dead ends: 1438 [2018-07-23 21:59:16,222 INFO L226 Difference]: Without dead ends: 1088 [2018-07-23 21:59:16,224 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 242 GetRequests, 205 SyntacticMatches, 18 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2018-07-23 21:59:16,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2018-07-23 21:59:16,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 1083. [2018-07-23 21:59:16,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1083 states. [2018-07-23 21:59:16,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1381 transitions. [2018-07-23 21:59:16,265 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1381 transitions. Word has length 234 [2018-07-23 21:59:16,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 21:59:16,266 INFO L471 AbstractCegarLoop]: Abstraction has 1083 states and 1381 transitions. [2018-07-23 21:59:16,266 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-23 21:59:16,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1381 transitions. [2018-07-23 21:59:16,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-07-23 21:59:16,271 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 21:59:16,271 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-23 21:59:16,271 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 21:59:16,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1670518231, now seen corresponding path program 1 times [2018-07-23 21:59:16,272 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 21:59:16,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:59:16,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:59:16,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 21:59:16,273 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 21:59:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:59:17,015 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 108 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 21:59:17,016 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 21:59:17,016 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 21:59:17,016 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 254 with the following transitions: [2018-07-23 21:59:17,017 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [566], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [754], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-07-23 21:59:17,020 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 21:59:17,021 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 21:59:33,006 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-23 21:59:41,496 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-23 21:59:41,497 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-23 21:59:41,498 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-23 21:59:41,498 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 21:59:41,498 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 21:59:41,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 21:59:41,509 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 21:59:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 21:59:41,657 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 21:59:41,719 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-23 21:59:41,920 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 21:59:41,921 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 21:59:41,926 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 21:59:41,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 09:59:41 BoogieIcfgContainer [2018-07-23 21:59:41,926 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 21:59:41,927 INFO L168 Benchmark]: Toolchain (without parser) took 241563.50 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -691.8 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-07-23 21:59:41,928 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. [2018-07-23 21:59:41,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.93 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. [2018-07-23 21:59:41,930 INFO L168 Benchmark]: Boogie Procedure Inliner took 128.28 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 21:59:41,932 INFO L168 Benchmark]: Boogie Preprocessor took 271.88 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 770.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -875.4 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2018-07-23 21:59:41,933 INFO L168 Benchmark]: RCFGBuilder took 3413.45 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: 122.9 MB). Peak memory consumption was 122.9 MB. Max. memory is 7.1 GB. [2018-07-23 21:59:41,933 INFO L168 Benchmark]: TraceAbstraction took 236994.90 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-07-23 21:59:41,938 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 748.93 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 128.28 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 271.88 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 770.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -875.4 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3413.45 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: 122.9 MB). Peak memory consumption was 122.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 236994.90 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 73). Cancelled while BasicCegarLoop was analyzing trace of length 254 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 13 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 236.9s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 128.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 933 SDtfs, 2559 SDslu, 1330 SDs, 0 SdLazy, 4093 SolverSat, 742 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 69.5s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 764 GetRequests, 651 SyntacticMatches, 56 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1083occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 76.1s AbstIntTime, 5 AbstIntIterations, 4 AbstIntStrong, 0.9940451542936012 AbsIntWeakeningRatio, 0.13333333333333333 AbsIntAvgWeakeningVarsNumRemoved, 159.47210884353743 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 13 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 769 NumberOfCodeBlocks, 769 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 764 ConstructedInterpolants, 0 QuantifiedInterpolants, 472165 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 299/400 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label56_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_21-59-41-952.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label56_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_21-59-41-952.csv Completed graceful shutdown