java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label41_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 19:13:00,744 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 19:13:00,746 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 19:13:00,760 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 19:13:00,760 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 19:13:00,762 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 19:13:00,764 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 19:13:00,766 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 19:13:00,767 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 19:13:00,768 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 19:13:00,769 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 19:13:00,770 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 19:13:00,771 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 19:13:00,772 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 19:13:00,775 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 19:13:00,775 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 19:13:00,776 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 19:13:00,783 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 19:13:00,785 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 19:13:00,787 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 19:13:00,788 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 19:13:00,791 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 19:13:00,794 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 19:13:00,794 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 19:13:00,797 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 19:13:00,798 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 19:13:00,800 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 19:13:00,800 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 19:13:00,801 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 19:13:00,804 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 19:13:00,805 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 19:13:00,806 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 19:13:00,806 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 19:13:00,806 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 19:13:00,808 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 19:13:00,809 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 19:13:00,809 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 19:13:00,833 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 19:13:00,834 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 19:13:00,835 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 19:13:00,835 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 19:13:00,835 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 19:13:00,835 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 19:13:00,835 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 19:13:00,836 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 19:13:00,836 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 19:13:00,836 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 19:13:00,836 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 19:13:00,837 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 19:13:00,837 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 19:13:00,837 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 19:13:00,837 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 19:13:00,838 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 19:13:00,838 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 19:13:00,838 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 19:13:00,838 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 19:13:00,838 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 19:13:00,839 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 19:13:00,839 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 19:13:00,839 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 19:13:00,839 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 19:13:00,839 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 19:13:00,840 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 19:13:00,840 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 19:13:00,840 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 19:13:00,840 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 19:13:00,840 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 19:13:00,840 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 19:13:00,841 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 19:13:00,841 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 19:13:00,891 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 19:13:00,907 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 19:13:00,912 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 19:13:00,914 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 19:13:00,914 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 19:13:00,915 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label41_false-unreach-call.c [2018-07-23 19:13:01,271 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0709ea7bc/052700c56cfa44e1932c994d051f2d27/FLAG4856980dd [2018-07-23 19:13:01,549 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 19:13:01,550 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label41_false-unreach-call.c [2018-07-23 19:13:01,565 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0709ea7bc/052700c56cfa44e1932c994d051f2d27/FLAG4856980dd [2018-07-23 19:13:01,587 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0709ea7bc/052700c56cfa44e1932c994d051f2d27 [2018-07-23 19:13:01,598 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 19:13:01,600 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 19:13:01,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 19:13:01,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 19:13:01,608 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 19:13:01,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:13:01" (1/1) ... [2018-07-23 19:13:01,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bcc3c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:13:01, skipping insertion in model container [2018-07-23 19:13:01,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:13:01" (1/1) ... [2018-07-23 19:13:01,812 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 19:13:02,121 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:13:02,137 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 19:13:02,267 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:13:02,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:13:02 WrapperNode [2018-07-23 19:13:02,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 19:13:02,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 19:13:02,312 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 19:13:02,312 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 19:13:02,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:13:02" (1/1) ... [2018-07-23 19:13:02,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:13:02" (1/1) ... [2018-07-23 19:13:02,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 19:13:02,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 19:13:02,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 19:13:02,447 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 19:13:02,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:13:02" (1/1) ... [2018-07-23 19:13:02,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:13:02" (1/1) ... [2018-07-23 19:13:02,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:13:02" (1/1) ... [2018-07-23 19:13:02,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:13:02" (1/1) ... [2018-07-23 19:13:02,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:13:02" (1/1) ... [2018-07-23 19:13:02,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:13:02" (1/1) ... [2018-07-23 19:13:02,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:13:02" (1/1) ... [2018-07-23 19:13:02,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 19:13:02,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 19:13:02,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 19:13:02,721 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 19:13:02,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:13:02" (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 19:13:02,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 19:13:02,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 19:13:02,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 19:13:02,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 19:13:02,789 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 19:13:02,789 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 19:13:02,789 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 19:13:02,790 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 19:13:06,945 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 19:13:06,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:13:06 BoogieIcfgContainer [2018-07-23 19:13:06,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 19:13:06,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 19:13:06,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 19:13:06,951 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 19:13:06,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 07:13:01" (1/3) ... [2018-07-23 19:13:06,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f643256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:13:06, skipping insertion in model container [2018-07-23 19:13:06,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:13:02" (2/3) ... [2018-07-23 19:13:06,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f643256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:13:06, skipping insertion in model container [2018-07-23 19:13:06,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:13:06" (3/3) ... [2018-07-23 19:13:06,955 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label41_false-unreach-call.c [2018-07-23 19:13:06,964 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 19:13:06,974 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 19:13:07,028 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 19:13:07,029 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 19:13:07,029 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 19:13:07,029 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 19:13:07,030 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 19:13:07,030 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 19:13:07,030 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 19:13:07,030 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 19:13:07,031 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 19:13:07,056 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-07-23 19:13:07,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-07-23 19:13:07,064 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:13:07,065 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] [2018-07-23 19:13:07,065 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 19:13:07,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1627205017, now seen corresponding path program 1 times [2018-07-23 19:13:07,074 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:13:07,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:13:07,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:13:07,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:13:07,130 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:13:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:13:07,493 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-07-23 19:13:07,506 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 19:13:07,509 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:13:07,509 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 19:13:07,511 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:13:07,518 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 19:13:07,532 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 19:13:07,533 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 19:13:07,535 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2018-07-23 19:13:09,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:13:09,995 INFO L93 Difference]: Finished difference Result 737 states and 1298 transitions. [2018-07-23 19:13:09,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 19:13:09,997 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-07-23 19:13:09,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:13:10,020 INFO L225 Difference]: With dead ends: 737 [2018-07-23 19:13:10,020 INFO L226 Difference]: Without dead ends: 515 [2018-07-23 19:13:10,030 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 19:13:10,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2018-07-23 19:13:10,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 356. [2018-07-23 19:13:10,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-07-23 19:13:10,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 579 transitions. [2018-07-23 19:13:10,109 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 579 transitions. Word has length 27 [2018-07-23 19:13:10,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:13:10,109 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 579 transitions. [2018-07-23 19:13:10,109 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 19:13:10,110 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 579 transitions. [2018-07-23 19:13:10,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-07-23 19:13:10,118 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:13:10,118 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 19:13:10,119 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 19:13:10,119 INFO L82 PathProgramCache]: Analyzing trace with hash -852537957, now seen corresponding path program 1 times [2018-07-23 19:13:10,120 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:13:10,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:13:10,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:13:10,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:13:10,123 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:13:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:13:10,491 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:13:10,492 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:13:10,492 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 19:13:10,492 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:13:10,494 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 19:13:10,495 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 19:13:10,495 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 19:13:10,495 INFO L87 Difference]: Start difference. First operand 356 states and 579 transitions. Second operand 6 states. [2018-07-23 19:13:15,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:13:15,047 INFO L93 Difference]: Finished difference Result 1259 states and 2162 transitions. [2018-07-23 19:13:15,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:13:15,051 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2018-07-23 19:13:15,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:13:15,069 INFO L225 Difference]: With dead ends: 1259 [2018-07-23 19:13:15,069 INFO L226 Difference]: Without dead ends: 909 [2018-07-23 19:13:15,074 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 19:13:15,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2018-07-23 19:13:15,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 895. [2018-07-23 19:13:15,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 895 states. [2018-07-23 19:13:15,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1370 transitions. [2018-07-23 19:13:15,154 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1370 transitions. Word has length 102 [2018-07-23 19:13:15,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:13:15,155 INFO L471 AbstractCegarLoop]: Abstraction has 895 states and 1370 transitions. [2018-07-23 19:13:15,155 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 19:13:15,155 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1370 transitions. [2018-07-23 19:13:15,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-07-23 19:13:15,158 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:13:15,159 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 19:13:15,159 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 19:13:15,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1420315071, now seen corresponding path program 1 times [2018-07-23 19:13:15,159 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:13:15,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:13:15,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:13:15,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:13:15,161 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:13:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:13:15,394 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:13:15,394 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:13:15,395 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 19:13:15,395 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:13:15,396 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 19:13:15,396 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 19:13:15,396 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 19:13:15,396 INFO L87 Difference]: Start difference. First operand 895 states and 1370 transitions. Second operand 6 states. [2018-07-23 19:13:20,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:13:20,005 INFO L93 Difference]: Finished difference Result 2358 states and 3764 transitions. [2018-07-23 19:13:20,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:13:20,007 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-07-23 19:13:20,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:13:20,021 INFO L225 Difference]: With dead ends: 2358 [2018-07-23 19:13:20,022 INFO L226 Difference]: Without dead ends: 1469 [2018-07-23 19:13:20,028 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 19:13:20,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2018-07-23 19:13:20,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1450. [2018-07-23 19:13:20,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2018-07-23 19:13:20,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 2107 transitions. [2018-07-23 19:13:20,088 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 2107 transitions. Word has length 104 [2018-07-23 19:13:20,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:13:20,088 INFO L471 AbstractCegarLoop]: Abstraction has 1450 states and 2107 transitions. [2018-07-23 19:13:20,088 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 19:13:20,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 2107 transitions. [2018-07-23 19:13:20,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-07-23 19:13:20,094 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:13:20,099 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 19:13:20,100 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 19:13:20,100 INFO L82 PathProgramCache]: Analyzing trace with hash 218719396, now seen corresponding path program 1 times [2018-07-23 19:13:20,100 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:13:20,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:13:20,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:13:20,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:13:20,102 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:13:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:13:20,332 WARN L169 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 19:13:20,396 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:13:20,397 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:13:20,397 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:13:20,398 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 108 with the following transitions: [2018-07-23 19:13:20,400 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [558], [816], [817], [818], [819], [821], [822] [2018-07-23 19:13:20,463 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:13:20,464 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:13:29,041 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:13:29,043 INFO L272 AbstractInterpreter]: Visited 87 different actions 167 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 19:13:29,063 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:13:32,402 INFO L232 lantSequenceWeakener]: Weakened 105 states. On average, predicates are now at 73.19% of their original sizes. [2018-07-23 19:13:32,403 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:13:34,314 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:13:34,316 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:13:34,317 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [7] total 16 [2018-07-23 19:13:34,317 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:13:34,317 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 19:13:34,318 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 19:13:34,318 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-23 19:13:34,318 INFO L87 Difference]: Start difference. First operand 1450 states and 2107 transitions. Second operand 11 states. [2018-07-23 19:13:40,036 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:14:17,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:14:17,251 INFO L93 Difference]: Finished difference Result 3332 states and 4923 transitions. [2018-07-23 19:14:17,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 19:14:17,252 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 107 [2018-07-23 19:14:17,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:14:17,262 INFO L225 Difference]: With dead ends: 3332 [2018-07-23 19:14:17,263 INFO L226 Difference]: Without dead ends: 1888 [2018-07-23 19:14:17,270 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 113 GetRequests, 82 SyntacticMatches, 15 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-07-23 19:14:17,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2018-07-23 19:14:17,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1885. [2018-07-23 19:14:17,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1885 states. [2018-07-23 19:14:17,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 2565 transitions. [2018-07-23 19:14:17,329 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 2565 transitions. Word has length 107 [2018-07-23 19:14:17,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:14:17,330 INFO L471 AbstractCegarLoop]: Abstraction has 1885 states and 2565 transitions. [2018-07-23 19:14:17,330 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 19:14:17,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 2565 transitions. [2018-07-23 19:14:17,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-23 19:14:17,333 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:14:17,333 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 19:14:17,333 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 19:14:17,333 INFO L82 PathProgramCache]: Analyzing trace with hash -38476884, now seen corresponding path program 1 times [2018-07-23 19:14:17,334 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:14:17,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:14:17,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:14:17,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:14:17,335 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:14:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:14:17,570 WARN L169 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 19:14:17,819 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:14:17,819 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:14:17,819 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:14:17,819 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 144 with the following transitions: [2018-07-23 19:14:17,820 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [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], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [702], [816], [817], [818], [819], [821], [822] [2018-07-23 19:14:17,827 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:14:17,828 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:14:21,222 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:14:34,133 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:14:34,134 INFO L272 AbstractInterpreter]: Visited 123 different actions 240 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 19:14:34,142 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:14:38,062 INFO L232 lantSequenceWeakener]: Weakened 141 states. On average, predicates are now at 73.07% of their original sizes. [2018-07-23 19:14:38,062 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:14:41,030 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:14:41,031 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:14:41,031 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [7] total 17 [2018-07-23 19:14:41,031 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:14:41,032 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-23 19:14:41,032 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-23 19:14:41,032 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-07-23 19:14:41,034 INFO L87 Difference]: Start difference. First operand 1885 states and 2565 transitions. Second operand 12 states. [2018-07-23 19:15:39,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:15:39,504 INFO L93 Difference]: Finished difference Result 3482 states and 4955 transitions. [2018-07-23 19:15:39,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-23 19:15:39,504 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 143 [2018-07-23 19:15:39,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:15:39,516 INFO L225 Difference]: With dead ends: 3482 [2018-07-23 19:15:39,517 INFO L226 Difference]: Without dead ends: 2038 [2018-07-23 19:15:39,523 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 151 GetRequests, 117 SyntacticMatches, 15 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2018-07-23 19:15:39,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2038 states. [2018-07-23 19:15:39,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2038 to 2031. [2018-07-23 19:15:39,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2031 states. [2018-07-23 19:15:39,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 2727 transitions. [2018-07-23 19:15:39,588 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 2727 transitions. Word has length 143 [2018-07-23 19:15:39,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:15:39,588 INFO L471 AbstractCegarLoop]: Abstraction has 2031 states and 2727 transitions. [2018-07-23 19:15:39,589 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-23 19:15:39,589 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 2727 transitions. [2018-07-23 19:15:39,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-07-23 19:15:39,592 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:15:39,593 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:15:39,593 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:15:39,593 INFO L82 PathProgramCache]: Analyzing trace with hash -777653805, now seen corresponding path program 1 times [2018-07-23 19:15:39,593 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:15:39,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:15:39,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:15:39,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:15:39,594 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:15:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:15:39,890 WARN L169 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 19:15:40,116 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-23 19:15:40,117 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:15:40,117 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:15:40,117 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 163 with the following transitions: [2018-07-23 19:15:40,118 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [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], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [816], [817], [818], [819], [821], [822] [2018-07-23 19:15:40,125 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:15:40,126 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:16:10,370 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:16:10,371 INFO L272 AbstractInterpreter]: Visited 142 different actions 549 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 19:16:10,375 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:16:12,539 INFO L232 lantSequenceWeakener]: Weakened 160 states. On average, predicates are now at 73.03% of their original sizes. [2018-07-23 19:16:12,540 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:16:13,679 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:16:13,679 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:16:13,679 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [4] total 17 [2018-07-23 19:16:13,680 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:16:13,680 INFO L450 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-07-23 19:16:13,681 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-07-23 19:16:13,681 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-07-23 19:16:13,681 INFO L87 Difference]: Start difference. First operand 2031 states and 2727 transitions. Second operand 15 states. [2018-07-23 19:16:16,671 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:16:40,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:16:40,522 INFO L93 Difference]: Finished difference Result 3631 states and 5082 transitions. [2018-07-23 19:16:40,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-07-23 19:16:40,522 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 162 [2018-07-23 19:16:40,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:16:40,532 INFO L225 Difference]: With dead ends: 3631 [2018-07-23 19:16:40,532 INFO L226 Difference]: Without dead ends: 2187 [2018-07-23 19:16:40,538 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 173 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=165, Invalid=537, Unknown=0, NotChecked=0, Total=702 [2018-07-23 19:16:40,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2018-07-23 19:16:40,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 2181. [2018-07-23 19:16:40,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2181 states. [2018-07-23 19:16:40,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 2897 transitions. [2018-07-23 19:16:40,604 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 2897 transitions. Word has length 162 [2018-07-23 19:16:40,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:16:40,605 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 2897 transitions. [2018-07-23 19:16:40,605 INFO L472 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-07-23 19:16:40,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 2897 transitions. [2018-07-23 19:16:40,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-07-23 19:16:40,608 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:16:40,608 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:16:40,608 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:16:40,608 INFO L82 PathProgramCache]: Analyzing trace with hash -914087944, now seen corresponding path program 1 times [2018-07-23 19:16:40,609 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:16:40,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:16:40,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:16:40,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:16:40,610 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:16:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:16:40,876 WARN L169 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 19:16:41,393 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:16:41,394 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:16:41,394 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:16:41,394 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 166 with the following transitions: [2018-07-23 19:16:41,394 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [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], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [790], [816], [817], [818], [819], [821], [822] [2018-07-23 19:16:41,400 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:16:41,400 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-07-23 19:16:46,259 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-23 19:16:46,260 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-23 19:16:46,261 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-23 19:16:46,261 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:16:46,261 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 19:16:46,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:16:46,272 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 19:16:46,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:16:46,374 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 19:16:46,405 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-23 19:16:46,606 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 19:16:46,606 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 19:16:46,612 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 19:16:46,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 07:16:46 BoogieIcfgContainer [2018-07-23 19:16:46,612 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 19:16:46,613 INFO L168 Benchmark]: Toolchain (without parser) took 225014.00 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.7 GB). Peak memory consumption was 914.7 MB. Max. memory is 7.1 GB. [2018-07-23 19:16:46,614 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 19:16:46,615 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-23 19:16:46,616 INFO L168 Benchmark]: Boogie Procedure Inliner took 134.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 19:16:46,617 INFO L168 Benchmark]: Boogie Preprocessor took 274.18 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 778.6 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -886.8 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. [2018-07-23 19:16:46,618 INFO L168 Benchmark]: RCFGBuilder took 4225.30 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 122.4 MB). Peak memory consumption was 122.4 MB. Max. memory is 7.1 GB. [2018-07-23 19:16:46,618 INFO L168 Benchmark]: TraceAbstraction took 219664.91 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 847.7 MB. Max. memory is 7.1 GB. [2018-07-23 19:16:46,626 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 709.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 134.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 274.18 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 778.6 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -886.8 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4225.30 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 122.4 MB). Peak memory consumption was 122.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 219664.91 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 847.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 64). Cancelled while BasicCegarLoop was analyzing trace of length 166 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 7 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 219.5s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 140.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 931 SDtfs, 4338 SDslu, 1500 SDs, 0 SdLazy, 6619 SolverSat, 1166 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 66.4s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 463 GetRequests, 355 SyntacticMatches, 32 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2181occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 60.1s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 0.9932231317104282 AbsIntWeakeningRatio, 0.1466992665036675 AbsIntAvgWeakeningVarsNumRemoved, 66.50122249388752 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 208 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 645 NumberOfCodeBlocks, 645 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 639 ConstructedInterpolants, 0 QuantifiedInterpolants, 413094 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 68/100 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label41_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_19-16-46-642.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label41_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_19-16-46-642.csv Completed graceful shutdown