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/Problem11_label38_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 22:03:59,707 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 22:03:59,710 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 22:03:59,724 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 22:03:59,724 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 22:03:59,725 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 22:03:59,727 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 22:03:59,731 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 22:03:59,734 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 22:03:59,735 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 22:03:59,738 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 22:03:59,738 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 22:03:59,741 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 22:03:59,742 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 22:03:59,743 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 22:03:59,747 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 22:03:59,748 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 22:03:59,752 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 22:03:59,756 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 22:03:59,765 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 22:03:59,769 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 22:03:59,770 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 22:03:59,776 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 22:03:59,776 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 22:03:59,777 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 22:03:59,778 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 22:03:59,780 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 22:03:59,781 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 22:03:59,782 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 22:03:59,783 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 22:03:59,783 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 22:03:59,784 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 22:03:59,784 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 22:03:59,784 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 22:03:59,785 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 22:03:59,786 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 22:03:59,786 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 22:03:59,802 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 22:03:59,803 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 22:03:59,804 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 22:03:59,804 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 22:03:59,804 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 22:03:59,804 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 22:03:59,804 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 22:03:59,805 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 22:03:59,805 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 22:03:59,805 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 22:03:59,805 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 22:03:59,806 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 22:03:59,806 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 22:03:59,807 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 22:03:59,807 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 22:03:59,807 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 22:03:59,807 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 22:03:59,807 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 22:03:59,808 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 22:03:59,808 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 22:03:59,808 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 22:03:59,808 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 22:03:59,809 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 22:03:59,809 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 22:03:59,809 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 22:03:59,809 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 22:03:59,809 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 22:03:59,810 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 22:03:59,810 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 22:03:59,810 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 22:03:59,810 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 22:03:59,810 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 22:03:59,811 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 22:03:59,893 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 22:03:59,912 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 22:03:59,921 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 22:03:59,923 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 22:03:59,924 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 22:03:59,924 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label38_true-unreach-call.c [2018-07-23 22:04:00,273 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cc4e8b6f/3c4171deb3b044fd9b87eb42d2571b9f/FLAGe7c3b4623 [2018-07-23 22:04:00,600 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 22:04:00,600 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label38_true-unreach-call.c [2018-07-23 22:04:00,622 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cc4e8b6f/3c4171deb3b044fd9b87eb42d2571b9f/FLAGe7c3b4623 [2018-07-23 22:04:00,644 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cc4e8b6f/3c4171deb3b044fd9b87eb42d2571b9f [2018-07-23 22:04:00,655 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 22:04:00,656 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 22:04:00,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 22:04:00,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 22:04:00,666 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 22:04:00,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 10:04:00" (1/1) ... [2018-07-23 22:04:00,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44e9b9fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:04:00, skipping insertion in model container [2018-07-23 22:04:00,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 10:04:00" (1/1) ... [2018-07-23 22:04:00,958 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 22:04:01,426 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 22:04:01,444 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 22:04:01,637 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 22:04:01,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:04:01 WrapperNode [2018-07-23 22:04:01,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 22:04:01,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 22:04:01,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 22:04:01,715 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 22:04:01,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:04:01" (1/1) ... [2018-07-23 22:04:01,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:04:01" (1/1) ... [2018-07-23 22:04:01,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 22:04:01,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 22:04:01,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 22:04:01,911 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 22:04:02,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:04:01" (1/1) ... [2018-07-23 22:04:02,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:04:01" (1/1) ... [2018-07-23 22:04:02,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:04:01" (1/1) ... [2018-07-23 22:04:02,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:04:01" (1/1) ... [2018-07-23 22:04:02,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:04:01" (1/1) ... [2018-07-23 22:04:02,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:04:01" (1/1) ... [2018-07-23 22:04:02,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:04:01" (1/1) ... [2018-07-23 22:04:02,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 22:04:02,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 22:04:02,296 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 22:04:02,296 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 22:04:02,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:04:01" (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 22:04:02,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 22:04:02,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 22:04:02,365 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-23 22:04:02,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-23 22:04:02,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 22:04:02,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 22:04:02,366 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 22:04:02,366 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 22:04:07,791 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 22:04:07,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 10:04:07 BoogieIcfgContainer [2018-07-23 22:04:07,792 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 22:04:07,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 22:04:07,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 22:04:07,797 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 22:04:07,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 10:04:00" (1/3) ... [2018-07-23 22:04:07,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af535c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 10:04:07, skipping insertion in model container [2018-07-23 22:04:07,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:04:01" (2/3) ... [2018-07-23 22:04:07,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af535c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 10:04:07, skipping insertion in model container [2018-07-23 22:04:07,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 10:04:07" (3/3) ... [2018-07-23 22:04:07,801 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label38_true-unreach-call.c [2018-07-23 22:04:07,810 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 22:04:07,819 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 22:04:07,876 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 22:04:07,877 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 22:04:07,878 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 22:04:07,878 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 22:04:07,878 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 22:04:07,878 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 22:04:07,878 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 22:04:07,879 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 22:04:07,879 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 22:04:07,909 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-07-23 22:04:07,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-07-23 22:04:07,920 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:04:07,922 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:04:07,922 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:04:07,928 INFO L82 PathProgramCache]: Analyzing trace with hash 296004705, now seen corresponding path program 1 times [2018-07-23 22:04:07,931 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:04:07,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:04:07,980 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:04:07,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:04:07,981 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:04:08,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:04:08,426 WARN L169 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 22:04:08,478 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 22:04:08,480 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:04:08,481 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 22:04:08,481 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:04:08,488 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 22:04:08,504 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 22:04:08,505 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 22:04:08,508 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2018-07-23 22:04:10,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:04:10,935 INFO L93 Difference]: Finished difference Result 782 states and 1372 transitions. [2018-07-23 22:04:10,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 22:04:10,938 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2018-07-23 22:04:10,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:04:10,958 INFO L225 Difference]: With dead ends: 782 [2018-07-23 22:04:10,959 INFO L226 Difference]: Without dead ends: 487 [2018-07-23 22:04:10,968 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 22:04:10,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2018-07-23 22:04:11,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 482. [2018-07-23 22:04:11,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2018-07-23 22:04:11,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 837 transitions. [2018-07-23 22:04:11,054 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 837 transitions. Word has length 67 [2018-07-23 22:04:11,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:04:11,055 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 837 transitions. [2018-07-23 22:04:11,055 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 22:04:11,055 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 837 transitions. [2018-07-23 22:04:11,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-07-23 22:04:11,064 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:04:11,065 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, 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] [2018-07-23 22:04:11,065 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:04:11,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1433084721, now seen corresponding path program 1 times [2018-07-23 22:04:11,066 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:04:11,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:04:11,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:04:11,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:04:11,068 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:04:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:04:11,384 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:04:11,385 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:04:11,385 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 22:04:11,385 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:04:11,387 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 22:04:11,388 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 22:04:11,388 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-23 22:04:11,388 INFO L87 Difference]: Start difference. First operand 482 states and 837 transitions. Second operand 6 states. [2018-07-23 22:04:17,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:04:17,645 INFO L93 Difference]: Finished difference Result 1804 states and 3389 transitions. [2018-07-23 22:04:17,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-23 22:04:17,646 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2018-07-23 22:04:17,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:04:17,662 INFO L225 Difference]: With dead ends: 1804 [2018-07-23 22:04:17,663 INFO L226 Difference]: Without dead ends: 1328 [2018-07-23 22:04:17,675 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-23 22:04:17,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2018-07-23 22:04:17,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 1286. [2018-07-23 22:04:17,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1286 states. [2018-07-23 22:04:17,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1955 transitions. [2018-07-23 22:04:17,770 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1955 transitions. Word has length 138 [2018-07-23 22:04:17,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:04:17,771 INFO L471 AbstractCegarLoop]: Abstraction has 1286 states and 1955 transitions. [2018-07-23 22:04:17,771 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 22:04:17,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1955 transitions. [2018-07-23 22:04:17,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-07-23 22:04:17,787 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:04:17,787 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, 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 22:04:17,788 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:04:17,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1675544195, now seen corresponding path program 1 times [2018-07-23 22:04:17,788 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:04:17,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:04:17,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:04:17,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:04:17,791 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:04:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:04:18,033 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:04:18,034 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:04:18,034 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 22:04:18,034 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:04:18,035 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 22:04:18,035 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 22:04:18,035 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-23 22:04:18,036 INFO L87 Difference]: Start difference. First operand 1286 states and 1955 transitions. Second operand 6 states. [2018-07-23 22:04:23,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:04:23,417 INFO L93 Difference]: Finished difference Result 4497 states and 7274 transitions. [2018-07-23 22:04:23,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 22:04:23,423 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 148 [2018-07-23 22:04:23,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:04:23,451 INFO L225 Difference]: With dead ends: 4497 [2018-07-23 22:04:23,451 INFO L226 Difference]: Without dead ends: 3217 [2018-07-23 22:04:23,466 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-23 22:04:23,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3217 states. [2018-07-23 22:04:23,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3217 to 3178. [2018-07-23 22:04:23,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3178 states. [2018-07-23 22:04:23,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3178 states to 3178 states and 4547 transitions. [2018-07-23 22:04:23,599 INFO L78 Accepts]: Start accepts. Automaton has 3178 states and 4547 transitions. Word has length 148 [2018-07-23 22:04:23,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:04:23,599 INFO L471 AbstractCegarLoop]: Abstraction has 3178 states and 4547 transitions. [2018-07-23 22:04:23,599 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 22:04:23,600 INFO L276 IsEmpty]: Start isEmpty. Operand 3178 states and 4547 transitions. [2018-07-23 22:04:23,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-07-23 22:04:23,611 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:04:23,611 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 22:04:23,611 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:04:23,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1977764724, now seen corresponding path program 1 times [2018-07-23 22:04:23,612 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:04:23,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:04:23,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:04:23,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:04:23,613 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:04:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:04:24,000 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 189 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:04:24,001 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:04:24,001 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 22:04:24,002 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 213 with the following transitions: [2018-07-23 22:04:24,004 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [437], [439], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [510], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-07-23 22:04:24,069 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 22:04:24,069 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 22:04:29,574 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 22:04:29,575 INFO L272 AbstractInterpreter]: Visited 79 different actions 79 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-07-23 22:04:29,600 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 22:04:33,376 INFO L232 lantSequenceWeakener]: Weakened 204 states. On average, predicates are now at 73.99% of their original sizes. [2018-07-23 22:04:33,377 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 22:04:33,876 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 22:04:33,877 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 22:04:33,878 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-07-23 22:04:33,878 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:04:33,879 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 22:04:33,879 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 22:04:33,879 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 22:04:33,879 INFO L87 Difference]: Start difference. First operand 3178 states and 4547 transitions. Second operand 7 states. [2018-07-23 22:05:03,456 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 22:05:40,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:05:40,983 INFO L93 Difference]: Finished difference Result 6542 states and 9305 transitions. [2018-07-23 22:05:40,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 22:05:40,983 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2018-07-23 22:05:40,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:05:41,006 INFO L225 Difference]: With dead ends: 6542 [2018-07-23 22:05:41,006 INFO L226 Difference]: Without dead ends: 3370 [2018-07-23 22:05:41,022 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 212 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-23 22:05:41,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3370 states. [2018-07-23 22:05:41,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3370 to 3368. [2018-07-23 22:05:41,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3368 states. [2018-07-23 22:05:41,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3368 states to 3368 states and 4746 transitions. [2018-07-23 22:05:41,198 INFO L78 Accepts]: Start accepts. Automaton has 3368 states and 4746 transitions. Word has length 212 [2018-07-23 22:05:41,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:05:41,199 INFO L471 AbstractCegarLoop]: Abstraction has 3368 states and 4746 transitions. [2018-07-23 22:05:41,199 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 22:05:41,199 INFO L276 IsEmpty]: Start isEmpty. Operand 3368 states and 4746 transitions. [2018-07-23 22:05:41,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2018-07-23 22:05:41,207 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:05:41,207 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:05:41,208 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:05:41,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1735669, now seen corresponding path program 1 times [2018-07-23 22:05:41,208 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:05:41,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:05:41,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:05:41,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:05:41,210 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:05:41,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:05:41,584 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-07-23 22:05:41,584 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:05:41,584 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 22:05:41,585 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:05:41,585 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 22:05:41,586 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 22:05:41,586 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 22:05:41,586 INFO L87 Difference]: Start difference. First operand 3368 states and 4746 transitions. Second operand 4 states. [2018-07-23 22:05:45,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:05:45,183 INFO L93 Difference]: Finished difference Result 9942 states and 15455 transitions. [2018-07-23 22:05:45,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 22:05:45,183 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 265 [2018-07-23 22:05:45,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:05:45,233 INFO L225 Difference]: With dead ends: 9942 [2018-07-23 22:05:45,233 INFO L226 Difference]: Without dead ends: 6770 [2018-07-23 22:05:45,265 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 22:05:45,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6770 states. [2018-07-23 22:05:45,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6770 to 6759. [2018-07-23 22:05:45,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6759 states. [2018-07-23 22:05:45,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6759 states to 6759 states and 9952 transitions. [2018-07-23 22:05:45,474 INFO L78 Accepts]: Start accepts. Automaton has 6759 states and 9952 transitions. Word has length 265 [2018-07-23 22:05:45,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:05:45,475 INFO L471 AbstractCegarLoop]: Abstraction has 6759 states and 9952 transitions. [2018-07-23 22:05:45,475 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 22:05:45,475 INFO L276 IsEmpty]: Start isEmpty. Operand 6759 states and 9952 transitions. [2018-07-23 22:05:45,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2018-07-23 22:05:45,497 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:05:45,497 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:05:45,497 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:05:45,498 INFO L82 PathProgramCache]: Analyzing trace with hash 902442976, now seen corresponding path program 1 times [2018-07-23 22:05:45,498 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:05:45,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:05:45,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:05:45,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:05:45,499 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:05:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:05:46,193 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-07-23 22:05:46,193 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:05:46,193 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 22:05:46,194 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 297 with the following transitions: [2018-07-23 22:05:46,194 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [437], [439], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [629], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-07-23 22:05:46,202 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 22:05:46,202 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 22:07:00,639 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-23 22:07:56,922 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-23 22:07:56,923 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-23 22:07:56,924 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-23 22:07:56,924 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:07:56,924 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 22:07:56,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:07:56,933 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 22:07:57,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:07:57,107 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 22:07:57,127 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-23 22:07:57,328 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 22:07:57,329 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 22:07:57,333 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 22:07:57,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 10:07:57 BoogieIcfgContainer [2018-07-23 22:07:57,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 22:07:57,334 INFO L168 Benchmark]: Toolchain (without parser) took 236679.15 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 1.4 GB. Max. memory is 7.1 GB. [2018-07-23 22:07:57,337 INFO L168 Benchmark]: CDTParser took 0.23 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 22:07:57,337 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1056.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-07-23 22:07:57,338 INFO L168 Benchmark]: Boogie Procedure Inliner took 194.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-23 22:07:57,339 INFO L168 Benchmark]: Boogie Preprocessor took 385.08 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 823.1 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -947.1 MB). Peak memory consumption was 49.6 MB. Max. memory is 7.1 GB. [2018-07-23 22:07:57,340 INFO L168 Benchmark]: RCFGBuilder took 5496.73 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 198.2 MB). Peak memory consumption was 198.2 MB. Max. memory is 7.1 GB. [2018-07-23 22:07:57,341 INFO L168 Benchmark]: TraceAbstraction took 229540.47 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 2.7 GB in the end (delta: -618.5 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-07-23 22:07:57,347 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 1056.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 194.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 385.08 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 823.1 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -947.1 MB). Peak memory consumption was 49.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5496.73 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 198.2 MB). Peak memory consumption was 198.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 229540.47 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 2.7 GB in the end (delta: -618.5 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 186]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 186). Cancelled while BasicCegarLoop was analyzing trace of length 297 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 229.4s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 85.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 864 SDtfs, 3526 SDslu, 613 SDs, 0 SdLazy, 5349 SolverSat, 1320 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 72.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 242 GetRequests, 218 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6759occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 136.3s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9955678427242409 AbsIntWeakeningRatio, 0.13270142180094788 AbsIntAvgWeakeningVarsNumRemoved, 1212.483412322275 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 99 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 830 NumberOfCodeBlocks, 830 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 825 ConstructedInterpolants, 0 QuantifiedInterpolants, 428439 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 510/512 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/Problem11_label38_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_22-07-57-377.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem11_label38_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_22-07-57-377.csv Completed graceful shutdown