java -Xss4m -Xmx6000000000 -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 ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label45_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 19:14:35,250 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 19:14:35,252 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 19:14:35,268 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 19:14:35,268 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 19:14:35,269 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 19:14:35,270 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 19:14:35,276 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 19:14:35,278 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 19:14:35,279 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 19:14:35,280 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 19:14:35,280 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 19:14:35,283 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 19:14:35,284 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 19:14:35,285 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 19:14:35,287 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 19:14:35,288 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 19:14:35,290 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 19:14:35,292 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 19:14:35,294 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 19:14:35,295 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 19:14:35,296 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 19:14:35,299 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-21 19:14:35,306 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 19:14:35,306 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 19:14:35,307 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 19:14:35,308 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 19:14:35,308 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-21 19:14:35,333 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 19:14:35,333 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 19:14:35,335 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 19:14:35,335 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 19:14:35,335 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 19:14:35,335 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 19:14:35,335 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 19:14:35,336 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 19:14:35,336 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 19:14:35,336 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 19:14:35,336 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 19:14:35,336 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 19:14:35,339 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 19:14:35,339 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 19:14:35,339 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 19:14:35,339 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 19:14:35,340 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 19:14:35,340 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 19:14:35,340 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 19:14:35,340 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 19:14:35,340 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 19:14:35,341 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 19:14:35,341 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 19:14:35,341 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 19:14:35,341 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 19:14:35,341 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 19:14:35,341 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 19:14:35,342 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 19:14:35,342 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 19:14:35,342 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 19:14:35,342 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 19:14:35,342 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 19:14:35,342 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 19:14:35,343 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 19:14:35,343 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 19:14:35,396 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 19:14:35,413 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 19:14:35,419 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 19:14:35,421 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 19:14:35,421 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 19:14:35,422 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label45_true-unreach-call.c [2018-07-21 19:14:35,824 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/c6d8e8e25/21af54e511ad4ec0908c7b2f0a56771a/FLAGe919e2d5f [2018-07-21 19:14:36,268 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 19:14:36,269 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label45_true-unreach-call.c [2018-07-21 19:14:36,308 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/c6d8e8e25/21af54e511ad4ec0908c7b2f0a56771a/FLAGe919e2d5f [2018-07-21 19:14:36,326 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/c6d8e8e25/21af54e511ad4ec0908c7b2f0a56771a [2018-07-21 19:14:36,335 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 19:14:36,341 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 19:14:36,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 19:14:36,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 19:14:36,354 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 19:14:36,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 07:14:36" (1/1) ... [2018-07-21 19:14:36,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53fd5d3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:14:36, skipping insertion in model container [2018-07-21 19:14:36,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 07:14:36" (1/1) ... [2018-07-21 19:14:36,599 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 19:14:37,171 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 19:14:37,193 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 19:14:37,579 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 19:14:37,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:14:37 WrapperNode [2018-07-21 19:14:37,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 19:14:37,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 19:14:37,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 19:14:37,672 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 19:14:37,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:14:37" (1/1) ... [2018-07-21 19:14:37,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:14:37" (1/1) ... [2018-07-21 19:14:37,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 19:14:37,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 19:14:37,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 19:14:37,897 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 19:14:37,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:14:37" (1/1) ... [2018-07-21 19:14:37,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:14:37" (1/1) ... [2018-07-21 19:14:37,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:14:37" (1/1) ... [2018-07-21 19:14:37,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:14:37" (1/1) ... [2018-07-21 19:14:37,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:14:37" (1/1) ... [2018-07-21 19:14:38,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:14:37" (1/1) ... [2018-07-21 19:14:38,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:14:37" (1/1) ... [2018-07-21 19:14:38,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 19:14:38,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 19:14:38,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 19:14:38,457 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 19:14:38,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:14:37" (1/1) ... No working directory specified, using /storage/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 [2018-07-21 19:14:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 19:14:38,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 19:14:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 19:14:38,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 19:14:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 19:14:38,541 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 19:14:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-21 19:14:38,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-21 19:14:38,542 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 19:14:38,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 19:14:44,746 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 19:14:44,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 07:14:44 BoogieIcfgContainer [2018-07-21 19:14:44,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 19:14:44,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 19:14:44,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 19:14:44,751 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 19:14:44,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 07:14:36" (1/3) ... [2018-07-21 19:14:44,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5960dd20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 07:14:44, skipping insertion in model container [2018-07-21 19:14:44,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:14:37" (2/3) ... [2018-07-21 19:14:44,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5960dd20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 07:14:44, skipping insertion in model container [2018-07-21 19:14:44,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 07:14:44" (3/3) ... [2018-07-21 19:14:44,755 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label45_true-unreach-call.c [2018-07-21 19:14:44,769 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 19:14:44,782 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 19:14:44,854 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 19:14:44,855 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 19:14:44,855 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 19:14:44,855 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 19:14:44,856 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 19:14:44,856 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 19:14:44,856 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 19:14:44,856 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 19:14:44,856 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 19:14:44,903 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-07-21 19:14:44,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-07-21 19:14:44,912 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 19:14:44,921 INFO L358 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] [2018-07-21 19:14:44,922 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 19:14:44,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1639408796, now seen corresponding path program 1 times [2018-07-21 19:14:44,930 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 19:14:44,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 19:14:44,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 19:14:44,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 19:14:44,977 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 19:14:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 19:14:45,387 WARN L169 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 19:14:45,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 19:14:45,454 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 19:14:45,455 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 19:14:45,455 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 19:14:45,459 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 19:14:45,475 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 19:14:45,476 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 19:14:45,478 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-07-21 19:14:48,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 19:14:48,516 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-07-21 19:14:48,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 19:14:48,517 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2018-07-21 19:14:48,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 19:14:48,546 INFO L225 Difference]: With dead ends: 1156 [2018-07-21 19:14:48,547 INFO L226 Difference]: Without dead ends: 744 [2018-07-21 19:14:48,555 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 19:14:48,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-07-21 19:14:48,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-07-21 19:14:48,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-07-21 19:14:48,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1353 transitions. [2018-07-21 19:14:48,658 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1353 transitions. Word has length 60 [2018-07-21 19:14:48,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 19:14:48,659 INFO L471 AbstractCegarLoop]: Abstraction has 744 states and 1353 transitions. [2018-07-21 19:14:48,659 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 19:14:48,659 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1353 transitions. [2018-07-21 19:14:48,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-07-21 19:14:48,670 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 19:14:48,670 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-21 19:14:48,670 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 19:14:48,671 INFO L82 PathProgramCache]: Analyzing trace with hash -358355089, now seen corresponding path program 1 times [2018-07-21 19:14:48,671 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 19:14:48,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 19:14:48,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 19:14:48,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 19:14:48,673 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 19:14:48,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 19:14:49,027 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 19:14:49,028 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 19:14:49,028 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 19:14:49,028 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 19:14:49,031 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 19:14:49,031 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 19:14:49,031 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 19:14:49,031 INFO L87 Difference]: Start difference. First operand 744 states and 1353 transitions. Second operand 6 states. [2018-07-21 19:14:55,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 19:14:55,949 INFO L93 Difference]: Finished difference Result 2181 states and 4000 transitions. [2018-07-21 19:14:55,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 19:14:55,952 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 153 [2018-07-21 19:14:55,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 19:14:55,966 INFO L225 Difference]: With dead ends: 2181 [2018-07-21 19:14:55,966 INFO L226 Difference]: Without dead ends: 1443 [2018-07-21 19:14:55,973 INFO L578 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 [2018-07-21 19:14:55,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2018-07-21 19:14:56,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1422. [2018-07-21 19:14:56,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1422 states. [2018-07-21 19:14:56,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 2315 transitions. [2018-07-21 19:14:56,080 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 2315 transitions. Word has length 153 [2018-07-21 19:14:56,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 19:14:56,081 INFO L471 AbstractCegarLoop]: Abstraction has 1422 states and 2315 transitions. [2018-07-21 19:14:56,081 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 19:14:56,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 2315 transitions. [2018-07-21 19:14:56,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-07-21 19:14:56,092 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 19:14:56,092 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-21 19:14:56,093 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 19:14:56,093 INFO L82 PathProgramCache]: Analyzing trace with hash -553671062, now seen corresponding path program 1 times [2018-07-21 19:14:56,093 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 19:14:56,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 19:14:56,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 19:14:56,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 19:14:56,095 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 19:14:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 19:14:56,347 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 19:14:56,347 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 19:14:56,348 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 19:14:56,348 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 19:14:56,348 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 19:14:56,349 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 19:14:56,349 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 19:14:56,349 INFO L87 Difference]: Start difference. First operand 1422 states and 2315 transitions. Second operand 6 states. [2018-07-21 19:15:01,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 19:15:01,527 INFO L93 Difference]: Finished difference Result 4246 states and 6984 transitions. [2018-07-21 19:15:01,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 19:15:01,561 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2018-07-21 19:15:01,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 19:15:01,582 INFO L225 Difference]: With dead ends: 4246 [2018-07-21 19:15:01,582 INFO L226 Difference]: Without dead ends: 2830 [2018-07-21 19:15:01,591 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 19:15:01,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2830 states. [2018-07-21 19:15:01,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2830 to 2795. [2018-07-21 19:15:01,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2795 states. [2018-07-21 19:15:01,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2795 states to 2795 states and 4146 transitions. [2018-07-21 19:15:01,707 INFO L78 Accepts]: Start accepts. Automaton has 2795 states and 4146 transitions. Word has length 162 [2018-07-21 19:15:01,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 19:15:01,708 INFO L471 AbstractCegarLoop]: Abstraction has 2795 states and 4146 transitions. [2018-07-21 19:15:01,708 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 19:15:01,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2795 states and 4146 transitions. [2018-07-21 19:15:01,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2018-07-21 19:15:01,716 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 19:15:01,717 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 19:15:01,717 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 19:15:01,717 INFO L82 PathProgramCache]: Analyzing trace with hash 507499193, now seen corresponding path program 1 times [2018-07-21 19:15:01,718 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 19:15:01,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 19:15:01,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 19:15:01,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 19:15:01,721 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 19:15:01,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 19:15:02,051 WARN L169 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 19:15:02,115 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 106 proven. 97 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-21 19:15:02,115 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 19:15:02,115 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 19:15:02,116 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 274 with the following transitions: [2018-07-21 19:15:02,118 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [204], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [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], [583], [585], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [676], [684], [692], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [824], [825], [829], [833], [837], [841], [845], [849], [853], [857], [860], [1576], [1577], [1578], [1579], [1581], [1582] [2018-07-21 19:15:02,195 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 19:15:02,195 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 19:15:13,408 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 19:15:14,806 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 19:15:14,808 INFO L272 AbstractInterpreter]: Visited 116 different actions 116 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-21 19:15:14,849 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 19:15:26,974 INFO L232 lantSequenceWeakener]: Weakened 265 states. On average, predicates are now at 78.07% of their original sizes. [2018-07-21 19:15:26,974 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 19:15:28,157 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 19:15:28,159 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 19:15:28,159 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-07-21 19:15:28,160 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 19:15:28,160 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-21 19:15:28,161 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-21 19:15:28,161 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-21 19:15:28,161 INFO L87 Difference]: Start difference. First operand 2795 states and 4146 transitions. Second operand 8 states. [2018-07-21 19:17:41,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 19:17:41,433 INFO L93 Difference]: Finished difference Result 5924 states and 8826 transitions. [2018-07-21 19:17:41,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 19:17:41,433 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 273 [2018-07-21 19:17:41,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 19:17:41,451 INFO L225 Difference]: With dead ends: 5924 [2018-07-21 19:17:41,452 INFO L226 Difference]: Without dead ends: 3135 [2018-07-21 19:17:41,461 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 274 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-21 19:17:41,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3135 states. [2018-07-21 19:17:41,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3135 to 3133. [2018-07-21 19:17:41,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3133 states. [2018-07-21 19:17:41,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 4491 transitions. [2018-07-21 19:17:41,577 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 4491 transitions. Word has length 273 [2018-07-21 19:17:41,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 19:17:41,577 INFO L471 AbstractCegarLoop]: Abstraction has 3133 states and 4491 transitions. [2018-07-21 19:17:41,577 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-21 19:17:41,578 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 4491 transitions. [2018-07-21 19:17:41,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2018-07-21 19:17:41,588 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 19:17:41,588 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-21 19:17:41,588 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 19:17:41,589 INFO L82 PathProgramCache]: Analyzing trace with hash -2137958601, now seen corresponding path program 1 times [2018-07-21 19:17:41,589 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 19:17:41,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 19:17:41,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 19:17:41,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 19:17:41,592 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 19:17:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 19:17:42,002 WARN L169 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 19:17:42,112 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 165 proven. 206 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-07-21 19:17:42,112 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 19:17:42,112 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 19:17:42,112 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 366 with the following transitions: [2018-07-21 19:17:42,113 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [204], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [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], [583], [585], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [676], [684], [692], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [784], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [824], [825], [829], [833], [837], [841], [845], [849], [853], [857], [860], [1576], [1577], [1578], [1579], [1581], [1582] [2018-07-21 19:17:42,119 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 19:17:42,120 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 19:17:48,807 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 19:18:01,667 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 19:18:01,668 INFO L272 AbstractInterpreter]: Visited 120 different actions 347 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-21 19:18:01,678 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-07-21 19:18:06,948 INFO L232 lantSequenceWeakener]: Weakened 363 states. On average, predicates are now at 77.91% of their original sizes. [2018-07-21 19:18:06,948 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 19:18:06,964 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 19:18:06,968 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 19:18:06,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 07:18:06 BoogieIcfgContainer [2018-07-21 19:18:06,968 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 19:18:06,969 INFO L168 Benchmark]: Toolchain (without parser) took 210633.53 ms. Allocated memory was 307.2 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 246.8 MB in the beginning and 1.6 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.0 GB. Max. memory is 5.3 GB. [2018-07-21 19:18:06,970 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 307.2 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 19:18:06,972 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1328.61 ms. Allocated memory was 307.2 MB in the beginning and 333.4 MB in the end (delta: 26.2 MB). Free memory was 245.8 MB in the beginning and 265.2 MB in the end (delta: -19.4 MB). Peak memory consumption was 71.7 MB. Max. memory is 5.3 GB. [2018-07-21 19:18:06,972 INFO L168 Benchmark]: Boogie Procedure Inliner took 224.27 ms. Allocated memory is still 333.4 MB. Free memory was 265.2 MB in the beginning and 242.9 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 5.3 GB. [2018-07-21 19:18:06,973 INFO L168 Benchmark]: Boogie Preprocessor took 560.38 ms. Allocated memory was 333.4 MB in the beginning and 544.2 MB in the end (delta: 210.8 MB). Free memory was 242.9 MB in the beginning and 495.0 MB in the end (delta: -252.1 MB). Peak memory consumption was 34.5 MB. Max. memory is 5.3 GB. [2018-07-21 19:18:06,974 INFO L168 Benchmark]: RCFGBuilder took 6289.72 ms. Allocated memory was 544.2 MB in the beginning and 546.3 MB in the end (delta: 2.1 MB). Free memory was 495.0 MB in the beginning and 413.5 MB in the end (delta: 81.5 MB). Peak memory consumption was 203.0 MB. Max. memory is 5.3 GB. [2018-07-21 19:18:06,974 INFO L168 Benchmark]: TraceAbstraction took 202220.89 ms. Allocated memory was 546.3 MB in the beginning and 2.6 GB in the end (delta: 2.1 GB). Free memory was 413.5 MB in the beginning and 1.6 GB in the end (delta: -1.1 GB). Peak memory consumption was 936.6 MB. Max. memory is 5.3 GB. [2018-07-21 19:18:06,979 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 307.2 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 1328.61 ms. Allocated memory was 307.2 MB in the beginning and 333.4 MB in the end (delta: 26.2 MB). Free memory was 245.8 MB in the beginning and 265.2 MB in the end (delta: -19.4 MB). Peak memory consumption was 71.7 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 224.27 ms. Allocated memory is still 333.4 MB. Free memory was 265.2 MB in the beginning and 242.9 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 560.38 ms. Allocated memory was 333.4 MB in the beginning and 544.2 MB in the end (delta: 210.8 MB). Free memory was 242.9 MB in the beginning and 495.0 MB in the end (delta: -252.1 MB). Peak memory consumption was 34.5 MB. Max. memory is 5.3 GB. * RCFGBuilder took 6289.72 ms. Allocated memory was 544.2 MB in the beginning and 546.3 MB in the end (delta: 2.1 MB). Free memory was 495.0 MB in the beginning and 413.5 MB in the end (delta: 81.5 MB). Peak memory consumption was 203.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 202220.89 ms. Allocated memory was 546.3 MB in the beginning and 2.6 GB in the end (delta: 2.1 GB). Free memory was 413.5 MB in the beginning and 1.6 GB in the end (delta: -1.1 GB). Peak memory consumption was 936.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 166]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 166). Cancelled while BasicCegarLoop was analyzing trace of length 366 with TraceHistMax 4, while AbsIntCurrentIteration was generating AI predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 3 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 202.1s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 148.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 707 SDtfs, 4527 SDslu, 618 SDs, 0 SdLazy, 7814 SolverSat, 2549 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 115.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 300 GetRequests, 273 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3133occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 32.2s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9961574833652355 AbsIntWeakeningRatio, 0.09119496855345911 AbsIntAvgWeakeningVarsNumRemoved, 28.62421383647799 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 58 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 648 NumberOfCodeBlocks, 648 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 644 ConstructedInterpolants, 0 QuantifiedInterpolants, 455644 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 217/314 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/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem16_label45_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_19-18-07-002.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem16_label45_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_19-18-07-002.csv Completed graceful shutdown