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/Problem18_label32_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 20:04:04,470 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 20:04:04,473 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 20:04:04,492 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 20:04:04,492 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 20:04:04,494 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 20:04:04,495 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 20:04:04,498 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 20:04:04,503 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 20:04:04,509 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 20:04:04,510 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 20:04:04,510 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 20:04:04,516 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 20:04:04,517 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 20:04:04,518 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 20:04:04,519 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 20:04:04,520 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 20:04:04,525 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 20:04:04,530 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 20:04:04,533 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 20:04:04,535 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 20:04:04,536 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 20:04:04,539 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 20:04:04,539 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 20:04:04,539 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 20:04:04,540 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 20:04:04,541 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 20:04:04,542 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 20:04:04,543 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 20:04:04,544 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 20:04:04,544 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 20:04:04,545 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 20:04:04,545 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 20:04:04,545 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 20:04:04,546 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 20:04:04,547 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 20:04:04,547 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 20:04:04,563 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 20:04:04,563 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 20:04:04,564 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 20:04:04,564 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 20:04:04,564 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 20:04:04,565 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 20:04:04,565 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 20:04:04,565 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 20:04:04,565 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 20:04:04,565 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 20:04:04,566 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 20:04:04,566 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 20:04:04,566 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 20:04:04,567 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 20:04:04,567 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 20:04:04,567 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 20:04:04,567 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 20:04:04,567 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 20:04:04,568 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 20:04:04,568 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 20:04:04,568 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 20:04:04,568 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 20:04:04,568 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 20:04:04,569 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 20:04:04,569 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 20:04:04,569 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 20:04:04,569 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 20:04:04,569 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 20:04:04,570 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 20:04:04,570 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 20:04:04,570 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 20:04:04,570 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 20:04:04,570 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 20:04:04,637 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 20:04:04,652 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 20:04:04,658 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 20:04:04,660 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 20:04:04,660 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 20:04:04,661 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label32_false-unreach-call.c [2018-07-23 20:04:05,015 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/838c2985e/ad9b96d76db1475790b25de451b6a36c/FLAG6f0d14fe7 [2018-07-23 20:04:05,590 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 20:04:05,591 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label32_false-unreach-call.c [2018-07-23 20:04:05,626 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/838c2985e/ad9b96d76db1475790b25de451b6a36c/FLAG6f0d14fe7 [2018-07-23 20:04:05,640 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/838c2985e/ad9b96d76db1475790b25de451b6a36c [2018-07-23 20:04:05,650 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 20:04:05,652 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 20:04:05,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 20:04:05,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 20:04:05,660 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 20:04:05,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 08:04:05" (1/1) ... [2018-07-23 20:04:05,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c377c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:04:05, skipping insertion in model container [2018-07-23 20:04:05,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 08:04:05" (1/1) ... [2018-07-23 20:04:05,947 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 20:04:06,784 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 20:04:06,801 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 20:04:07,347 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 20:04:07,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:04:07 WrapperNode [2018-07-23 20:04:07,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 20:04:07,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 20:04:07,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 20:04:07,510 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 20:04:07,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:04:07" (1/1) ... [2018-07-23 20:04:07,584 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:04:07" (1/1) ... [2018-07-23 20:04:07,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 20:04:07,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 20:04:07,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 20:04:07,704 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 20:04:08,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:04:07" (1/1) ... [2018-07-23 20:04:08,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:04:07" (1/1) ... [2018-07-23 20:04:08,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:04:07" (1/1) ... [2018-07-23 20:04:08,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:04:07" (1/1) ... [2018-07-23 20:04:08,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:04:07" (1/1) ... [2018-07-23 20:04:08,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:04:07" (1/1) ... [2018-07-23 20:04:08,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:04:07" (1/1) ... [2018-07-23 20:04:08,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 20:04:08,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 20:04:08,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 20:04:08,383 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 20:04:08,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:04:07" (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 20:04:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 20:04:08,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 20:04:08,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 20:04:08,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 20:04:08,456 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 20:04:08,456 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 20:04:08,457 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-23 20:04:08,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-23 20:04:08,457 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-23 20:04:08,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-23 20:04:08,457 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-23 20:04:08,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-23 20:04:16,944 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 20:04:16,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 08:04:16 BoogieIcfgContainer [2018-07-23 20:04:16,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 20:04:16,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 20:04:16,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 20:04:16,953 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 20:04:16,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 08:04:05" (1/3) ... [2018-07-23 20:04:16,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d83e051 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 08:04:16, skipping insertion in model container [2018-07-23 20:04:16,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:04:07" (2/3) ... [2018-07-23 20:04:16,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d83e051 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 08:04:16, skipping insertion in model container [2018-07-23 20:04:16,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 08:04:16" (3/3) ... [2018-07-23 20:04:16,957 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label32_false-unreach-call.c [2018-07-23 20:04:16,967 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 20:04:16,976 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 20:04:17,036 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 20:04:17,037 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 20:04:17,037 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 20:04:17,037 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 20:04:17,037 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 20:04:17,037 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 20:04:17,038 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 20:04:17,038 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 20:04:17,038 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 20:04:17,087 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-07-23 20:04:17,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-07-23 20:04:17,095 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:04:17,096 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, 1, 1, 1, 1, 1] [2018-07-23 20:04:17,096 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:04:17,102 INFO L82 PathProgramCache]: Analyzing trace with hash 15267983, now seen corresponding path program 1 times [2018-07-23 20:04:17,105 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:04:17,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:04:17,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:04:17,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:04:17,153 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:04:17,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:04:17,534 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 20:04:17,539 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:04:17,539 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 20:04:17,539 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:04:17,546 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 20:04:17,560 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 20:04:17,561 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 20:04:17,564 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-07-23 20:04:24,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:04:24,408 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-07-23 20:04:24,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 20:04:24,410 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2018-07-23 20:04:24,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:04:24,445 INFO L225 Difference]: With dead ends: 2251 [2018-07-23 20:04:24,445 INFO L226 Difference]: Without dead ends: 1474 [2018-07-23 20:04:24,460 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 20:04:24,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-07-23 20:04:24,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-07-23 20:04:24,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-07-23 20:04:24,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2721 transitions. [2018-07-23 20:04:24,613 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2721 transitions. Word has length 35 [2018-07-23 20:04:24,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:04:24,613 INFO L471 AbstractCegarLoop]: Abstraction has 1474 states and 2721 transitions. [2018-07-23 20:04:24,614 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 20:04:24,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2721 transitions. [2018-07-23 20:04:24,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-07-23 20:04:24,620 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:04:24,620 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, 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] [2018-07-23 20:04:24,620 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:04:24,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1351347012, now seen corresponding path program 1 times [2018-07-23 20:04:24,621 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:04:24,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:04:24,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:04:24,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:04:24,624 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:04:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:04:24,967 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:04:24,968 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:04:24,968 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 20:04:24,969 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:04:24,971 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 20:04:24,971 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 20:04:24,971 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-23 20:04:24,972 INFO L87 Difference]: Start difference. First operand 1474 states and 2721 transitions. Second operand 6 states. [2018-07-23 20:04:42,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:04:42,529 INFO L93 Difference]: Finished difference Result 5907 states and 11160 transitions. [2018-07-23 20:04:42,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-23 20:04:42,530 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 107 [2018-07-23 20:04:42,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:04:42,566 INFO L225 Difference]: With dead ends: 5907 [2018-07-23 20:04:42,567 INFO L226 Difference]: Without dead ends: 4439 [2018-07-23 20:04:42,583 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-23 20:04:42,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4439 states. [2018-07-23 20:04:42,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4439 to 4389. [2018-07-23 20:04:42,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4389 states. [2018-07-23 20:04:42,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4389 states to 4389 states and 7149 transitions. [2018-07-23 20:04:42,748 INFO L78 Accepts]: Start accepts. Automaton has 4389 states and 7149 transitions. Word has length 107 [2018-07-23 20:04:42,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:04:42,749 INFO L471 AbstractCegarLoop]: Abstraction has 4389 states and 7149 transitions. [2018-07-23 20:04:42,749 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 20:04:42,749 INFO L276 IsEmpty]: Start isEmpty. Operand 4389 states and 7149 transitions. [2018-07-23 20:04:42,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-07-23 20:04:42,754 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:04:42,754 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:04:42,754 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:04:42,755 INFO L82 PathProgramCache]: Analyzing trace with hash -140823587, now seen corresponding path program 1 times [2018-07-23 20:04:42,755 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:04:42,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:04:42,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:04:42,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:04:42,756 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:04:42,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:04:43,057 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:04:43,058 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:04:43,059 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 20:04:43,059 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:04:43,060 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 20:04:43,060 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 20:04:43,060 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 20:04:43,060 INFO L87 Difference]: Start difference. First operand 4389 states and 7149 transitions. Second operand 6 states. [2018-07-23 20:04:54,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:04:54,184 INFO L93 Difference]: Finished difference Result 17449 states and 29632 transitions. [2018-07-23 20:04:54,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 20:04:54,191 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 130 [2018-07-23 20:04:54,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:04:54,271 INFO L225 Difference]: With dead ends: 17449 [2018-07-23 20:04:54,271 INFO L226 Difference]: Without dead ends: 13066 [2018-07-23 20:04:54,312 INFO L573 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 [2018-07-23 20:04:54,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13066 states. [2018-07-23 20:04:54,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13066 to 12965. [2018-07-23 20:04:54,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12965 states. [2018-07-23 20:04:54,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12965 states to 12965 states and 20063 transitions. [2018-07-23 20:04:54,729 INFO L78 Accepts]: Start accepts. Automaton has 12965 states and 20063 transitions. Word has length 130 [2018-07-23 20:04:54,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:04:54,730 INFO L471 AbstractCegarLoop]: Abstraction has 12965 states and 20063 transitions. [2018-07-23 20:04:54,730 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 20:04:54,730 INFO L276 IsEmpty]: Start isEmpty. Operand 12965 states and 20063 transitions. [2018-07-23 20:04:54,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-07-23 20:04:54,743 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:04:54,743 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, 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, 1, 1, 1, 1, 1, 1, 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 20:04:54,743 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:04:54,744 INFO L82 PathProgramCache]: Analyzing trace with hash 868141017, now seen corresponding path program 1 times [2018-07-23 20:04:54,744 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:04:54,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:04:54,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:04:54,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:04:54,746 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:04:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:04:55,007 WARN L169 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 20:04:55,233 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 56 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 20:04:55,233 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 20:04:55,233 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 20:04:55,234 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 196 with the following transitions: [2018-07-23 20:04:55,238 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [1648], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1827], [1829], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2120], [2128], [2136], [2140], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2220], [3020], [3021], [3022], [3023], [3025], [3026] [2018-07-23 20:04:55,320 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 20:04:55,321 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 20:04:59,489 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 20:04:59,491 INFO L272 AbstractInterpreter]: Visited 95 different actions 95 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-23 20:04:59,538 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 20:05:02,158 INFO L232 lantSequenceWeakener]: Weakened 187 states. On average, predicates are now at 77.79% of their original sizes. [2018-07-23 20:05:02,159 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 20:05:02,469 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 20:05:02,470 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 20:05:02,471 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2018-07-23 20:05:02,471 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:05:02,472 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 20:05:02,472 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 20:05:02,472 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 20:05:02,472 INFO L87 Difference]: Start difference. First operand 12965 states and 20063 transitions. Second operand 7 states. [2018-07-23 20:05:25,235 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 20:07:04,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:07:04,513 INFO L93 Difference]: Finished difference Result 26629 states and 41024 transitions. [2018-07-23 20:07:04,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 20:07:04,514 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2018-07-23 20:07:04,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:07:04,572 INFO L225 Difference]: With dead ends: 26629 [2018-07-23 20:07:04,572 INFO L226 Difference]: Without dead ends: 13670 [2018-07-23 20:07:04,618 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 195 GetRequests, 189 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 20:07:04,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13670 states. [2018-07-23 20:07:04,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13670 to 13668. [2018-07-23 20:07:04,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13668 states. [2018-07-23 20:07:04,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13668 states to 13668 states and 20775 transitions. [2018-07-23 20:07:04,950 INFO L78 Accepts]: Start accepts. Automaton has 13668 states and 20775 transitions. Word has length 195 [2018-07-23 20:07:04,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:07:04,951 INFO L471 AbstractCegarLoop]: Abstraction has 13668 states and 20775 transitions. [2018-07-23 20:07:04,952 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 20:07:04,952 INFO L276 IsEmpty]: Start isEmpty. Operand 13668 states and 20775 transitions. [2018-07-23 20:07:04,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2018-07-23 20:07:04,962 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:07:04,963 INFO L353 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:07:04,963 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:07:04,963 INFO L82 PathProgramCache]: Analyzing trace with hash -648136673, now seen corresponding path program 1 times [2018-07-23 20:07:04,963 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:07:04,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:07:04,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:07:04,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:07:04,965 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:07:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:07:05,560 WARN L169 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-23 20:07:05,754 WARN L169 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-23 20:07:06,396 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 143 proven. 166 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 20:07:06,397 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 20:07:06,397 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 20:07:06,397 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 383 with the following transitions: [2018-07-23 20:07:06,398 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [1648], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1827], [1829], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2120], [2128], [2136], [2140], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2220], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2608], [3020], [3021], [3022], [3023], [3025], [3026] [2018-07-23 20:07:06,407 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 20:07:06,407 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 20:07:36,615 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 20:07:36,615 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 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 20:07:36,621 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 20:07:48,576 INFO L232 lantSequenceWeakener]: Weakened 380 states. On average, predicates are now at 77.59% of their original sizes. [2018-07-23 20:07:48,576 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 20:07:49,709 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 20:07:49,710 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 20:07:49,710 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 20 [2018-07-23 20:07:49,710 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:07:49,710 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 20:07:49,711 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 20:07:49,711 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-23 20:07:49,711 INFO L87 Difference]: Start difference. First operand 13668 states and 20775 transitions. Second operand 11 states. Received shutdown request... [2018-07-23 20:07:51,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 20:07:51,710 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 20:07:51,716 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 20:07:51,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 08:07:51 BoogieIcfgContainer [2018-07-23 20:07:51,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 20:07:51,717 INFO L168 Benchmark]: Toolchain (without parser) took 226066.22 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-07-23 20:07:51,718 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 20:07:51,719 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1855.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-07-23 20:07:51,720 INFO L168 Benchmark]: Boogie Procedure Inliner took 194.06 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-23 20:07:51,721 INFO L168 Benchmark]: Boogie Preprocessor took 678.53 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 849.3 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2018-07-23 20:07:51,722 INFO L168 Benchmark]: RCFGBuilder took 8565.10 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 547.2 MB). Peak memory consumption was 547.2 MB. Max. memory is 7.1 GB. [2018-07-23 20:07:51,722 INFO L168 Benchmark]: TraceAbstraction took 214767.42 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 2.7 GB in the end (delta: -999.9 MB). Peak memory consumption was 779.5 MB. Max. memory is 7.1 GB. [2018-07-23 20:07:51,728 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1855.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 194.06 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 678.53 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 849.3 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8565.10 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 547.2 MB). Peak memory consumption was 547.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 214767.42 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 2.7 GB in the end (delta: -999.9 MB). Peak memory consumption was 779.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 93). Cancelled while BasicCegarLoop was constructing difference of abstraction (13668states) and interpolant automaton (currently 7 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (37 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 214.6s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 159.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1254 SDtfs, 8322 SDslu, 764 SDs, 0 SdLazy, 18350 SolverSat, 5556 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 108.9s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 607 GetRequests, 546 SyntacticMatches, 26 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13668occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 34.5s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9957498424700694 AbsIntWeakeningRatio, 0.10086956521739131 AbsIntAvgWeakeningVarsNumRemoved, 316.2121739130435 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 153 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 849 NumberOfCodeBlocks, 849 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 844 ConstructedInterpolants, 0 QuantifiedInterpolants, 1322072 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 265/496 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/Problem18_label32_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_20-07-51-747.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem18_label32_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_20-07-51-747.csv Completed graceful shutdown