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/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label18_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 14:50:23,002 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 14:50:23,004 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 14:50:23,020 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 14:50:23,020 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 14:50:23,021 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 14:50:23,023 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 14:50:23,024 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 14:50:23,026 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 14:50:23,027 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 14:50:23,028 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 14:50:23,028 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 14:50:23,029 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 14:50:23,030 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 14:50:23,031 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 14:50:23,032 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 14:50:23,033 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 14:50:23,035 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 14:50:23,036 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 14:50:23,038 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 14:50:23,039 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 14:50:23,040 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 14:50:23,043 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 14:50:23,044 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 14:50:23,045 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 14:50:23,046 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 14:50:23,047 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 14:50:23,048 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 14:50:23,050 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 14:50:23,053 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 14:50:23,053 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 14:50:23,054 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 14:50:23,056 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 14:50:23,056 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 14:50:23,057 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 14:50:23,058 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 14:50:23,058 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-07-24 14:50:23,084 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 14:50:23,085 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 14:50:23,086 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 14:50:23,086 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 14:50:23,086 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 14:50:23,086 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 14:50:23,087 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 14:50:23,087 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 14:50:23,087 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 14:50:23,087 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 14:50:23,087 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 14:50:23,088 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 14:50:23,089 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 14:50:23,089 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 14:50:23,090 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 14:50:23,090 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 14:50:23,090 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 14:50:23,090 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 14:50:23,090 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 14:50:23,091 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 14:50:23,091 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 14:50:23,091 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 14:50:23,091 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 14:50:23,092 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:50:23,093 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 14:50:23,093 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 14:50:23,093 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 14:50:23,093 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 14:50:23,093 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 14:50:23,094 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 14:50:23,094 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 14:50:23,094 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 14:50:23,094 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 14:50:23,151 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 14:50:23,168 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 14:50:23,175 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 14:50:23,176 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 14:50:23,177 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 14:50:23,177 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label18_true-unreach-call.c [2018-07-24 14:50:23,530 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e42d097cd/6c1e29ccb29e4ddd8547622941ed1565/FLAG3dba5a266 [2018-07-24 14:50:24,009 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 14:50:24,010 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label18_true-unreach-call.c [2018-07-24 14:50:24,045 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e42d097cd/6c1e29ccb29e4ddd8547622941ed1565/FLAG3dba5a266 [2018-07-24 14:50:24,066 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e42d097cd/6c1e29ccb29e4ddd8547622941ed1565 [2018-07-24 14:50:24,079 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 14:50:24,081 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 14:50:24,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 14:50:24,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 14:50:24,089 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 14:50:24,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:50:24" (1/1) ... [2018-07-24 14:50:24,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d65a7e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:50:24, skipping insertion in model container [2018-07-24 14:50:24,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:50:24" (1/1) ... [2018-07-24 14:50:24,385 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 14:50:25,104 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:50:25,125 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 14:50:25,521 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:50:25,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:50:25 WrapperNode [2018-07-24 14:50:25,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 14:50:25,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 14:50:25,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 14:50:25,716 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 14:50:25,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:50:25" (1/1) ... [2018-07-24 14:50:25,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:50:25" (1/1) ... [2018-07-24 14:50:25,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 14:50:25,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 14:50:25,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 14:50:25,995 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 14:50:26,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:50:25" (1/1) ... [2018-07-24 14:50:26,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:50:25" (1/1) ... [2018-07-24 14:50:26,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:50:25" (1/1) ... [2018-07-24 14:50:26,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:50:25" (1/1) ... [2018-07-24 14:50:26,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:50:25" (1/1) ... [2018-07-24 14:50:26,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:50:25" (1/1) ... [2018-07-24 14:50:26,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:50:25" (1/1) ... [2018-07-24 14:50:26,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 14:50:26,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 14:50:26,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 14:50:26,872 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 14:50:26,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:50:25" (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 [2018-07-24 14:50:26,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 14:50:26,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 14:50:26,942 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 [2018-07-24 14:50:26,942 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 [2018-07-24 14:50:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 14:50:26,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 14:50:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 14:50:26,943 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 14:50:26,943 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_output2 [2018-07-24 14:50:26,943 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_output2 [2018-07-24 14:50:36,510 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 14:50:36,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:50:36 BoogieIcfgContainer [2018-07-24 14:50:36,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 14:50:36,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 14:50:36,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 14:50:36,517 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 14:50:36,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:50:24" (1/3) ... [2018-07-24 14:50:36,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26fb6ae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:50:36, skipping insertion in model container [2018-07-24 14:50:36,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:50:25" (2/3) ... [2018-07-24 14:50:36,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26fb6ae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:50:36, skipping insertion in model container [2018-07-24 14:50:36,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:50:36" (3/3) ... [2018-07-24 14:50:36,520 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label18_true-unreach-call.c [2018-07-24 14:50:36,531 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 14:50:36,540 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 14:50:36,596 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 14:50:36,597 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 14:50:36,597 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 14:50:36,598 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 14:50:36,598 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 14:50:36,598 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 14:50:36,598 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 14:50:36,598 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 14:50:36,598 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 14:50:36,632 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-07-24 14:50:36,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-07-24 14:50:36,642 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:50:36,643 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] [2018-07-24 14:50:36,644 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]=== [2018-07-24 14:50:36,649 INFO L82 PathProgramCache]: Analyzing trace with hash -108801084, now seen corresponding path program 1 times [2018-07-24 14:50:36,652 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:50:36,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:50:36,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:50:36,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:50:36,706 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:50:36,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:50:37,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:50:37,157 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:50:37,158 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:50:37,158 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:50:37,164 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:50:37,180 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:50:37,180 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:50:37,184 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-07-24 14:50:48,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:50:48,935 INFO L93 Difference]: Finished difference Result 2133 states and 3959 transitions. [2018-07-24 14:50:48,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:50:48,938 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2018-07-24 14:50:48,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:50:48,975 INFO L225 Difference]: With dead ends: 2133 [2018-07-24 14:50:48,975 INFO L226 Difference]: Without dead ends: 1523 [2018-07-24 14:50:48,988 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 [2018-07-24 14:50:49,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2018-07-24 14:50:49,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1516. [2018-07-24 14:50:49,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1516 states. [2018-07-24 14:50:49,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2287 transitions. [2018-07-24 14:50:49,181 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2287 transitions. Word has length 62 [2018-07-24 14:50:49,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:50:49,182 INFO L471 AbstractCegarLoop]: Abstraction has 1516 states and 2287 transitions. [2018-07-24 14:50:49,182 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:50:49,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2287 transitions. [2018-07-24 14:50:49,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-07-24 14:50:49,196 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:50:49,197 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:50:49,197 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]=== [2018-07-24 14:50:49,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1736417259, now seen corresponding path program 1 times [2018-07-24 14:50:49,199 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:50:49,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:50:49,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:50:49,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:50:49,202 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:50:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:50:49,864 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-07-24 14:50:49,903 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:50:49,903 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:50:49,904 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 [2018-07-24 14:50:49,920 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:50:49,920 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:50:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:50:50,037 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:50:56,613 WARN L169 SmtUtils]: Spent 6.05 s on a formula simplification that was a NOOP. DAG size: 42 [2018-07-24 14:50:56,751 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 4 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:50:56,751 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:51:03,546 WARN L169 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 25 [2018-07-24 14:51:03,915 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:51:03,949 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:51:03,949 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 13 [2018-07-24 14:51:03,949 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:51:03,950 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:51:03,950 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:51:03,950 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=110, Unknown=2, NotChecked=0, Total=156 [2018-07-24 14:51:03,950 INFO L87 Difference]: Start difference. First operand 1516 states and 2287 transitions. Second operand 6 states. [2018-07-24 14:53:48,294 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:138) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:102) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.pop(ManagedScript.java:130) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPrecondition(IncrementalHoareTripleChecker.java:333) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:257) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:202) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:657) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:570) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:309) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:151) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: Stream closed at java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:433) at java.io.OutputStream.write(OutputStream.java:116) at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) at java.io.BufferedWriter.flush(BufferedWriter.java:254) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 28 more [2018-07-24 14:53:48,299 INFO L168 Benchmark]: Toolchain (without parser) took 204219.23 ms. Allocated memory was 1.5 GB in the beginning and 2.7 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 88.1 MB. Max. memory is 7.1 GB. [2018-07-24 14:53:48,302 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-07-24 14:53:48,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1632.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. [2018-07-24 14:53:48,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 279.42 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-24 14:53:48,305 INFO L168 Benchmark]: Boogie Preprocessor took 876.64 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 930.6 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 123.7 MB. Max. memory is 7.1 GB. [2018-07-24 14:53:48,306 INFO L168 Benchmark]: RCFGBuilder took 9639.02 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 504.7 MB). Peak memory consumption was 504.7 MB. Max. memory is 7.1 GB. [2018-07-24 14:53:48,307 INFO L168 Benchmark]: TraceAbstraction took 191785.90 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 227.5 MB). Free memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: -663.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 14:53:48,312 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 1632.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 279.42 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 876.64 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 930.6 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 123.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9639.02 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 504.7 MB). Peak memory consumption was 504.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 191785.90 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 227.5 MB). Free memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: -663.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label18_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_14-53-48-327.csv Received shutdown request...