java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label24_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 12:27:24,963 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 12:27:24,965 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 12:27:24,977 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 12:27:24,978 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 12:27:24,979 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 12:27:24,980 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 12:27:24,982 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 12:27:24,983 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 12:27:24,984 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 12:27:24,985 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 12:27:24,985 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 12:27:24,986 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 12:27:24,987 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 12:27:24,988 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 12:27:24,989 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 12:27:24,990 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 12:27:24,992 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 12:27:24,994 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 12:27:24,995 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 12:27:24,996 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 12:27:24,997 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 12:27:25,000 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 12:27:25,000 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 12:27:25,000 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 12:27:25,001 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 12:27:25,002 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 12:27:25,003 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 12:27:25,004 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 12:27:25,005 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 12:27:25,006 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 12:27:25,006 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 12:27:25,007 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 12:27:25,007 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 12:27:25,008 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 12:27:25,009 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 12:27:25,009 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 [2018-09-10 12:27:25,025 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 12:27:25,025 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 12:27:25,026 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 12:27:25,026 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 12:27:25,026 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 12:27:25,026 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 12:27:25,027 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 12:27:25,027 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 12:27:25,027 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 12:27:25,027 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 12:27:25,027 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 12:27:25,028 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 12:27:25,028 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 12:27:25,029 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 12:27:25,029 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 12:27:25,029 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 12:27:25,029 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 12:27:25,029 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 12:27:25,030 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 12:27:25,030 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 12:27:25,030 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 12:27:25,030 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 12:27:25,030 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 12:27:25,031 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 12:27:25,031 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 12:27:25,031 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 12:27:25,031 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 12:27:25,031 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 12:27:25,031 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 12:27:25,032 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 12:27:25,032 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 12:27:25,032 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 12:27:25,032 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 12:27:25,074 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 12:27:25,086 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 12:27:25,090 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 12:27:25,092 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 12:27:25,092 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 12:27:25,093 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label24_true-unreach-call.c [2018-09-10 12:27:25,440 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97cc24eb7/b46d439c23a64f3dbe5f5dedc581102a/FLAGe7004964e [2018-09-10 12:27:25,838 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 12:27:25,839 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label24_true-unreach-call.c [2018-09-10 12:27:25,863 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97cc24eb7/b46d439c23a64f3dbe5f5dedc581102a/FLAGe7004964e [2018-09-10 12:27:25,879 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97cc24eb7/b46d439c23a64f3dbe5f5dedc581102a [2018-09-10 12:27:25,890 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 12:27:25,893 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 12:27:25,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 12:27:25,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 12:27:25,901 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 12:27:25,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:27:25" (1/1) ... [2018-09-10 12:27:25,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ec3b694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:27:25, skipping insertion in model container [2018-09-10 12:27:25,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:27:25" (1/1) ... [2018-09-10 12:27:26,236 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 12:27:27,110 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:27:27,132 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 12:27:27,660 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:27:27,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:27:27 WrapperNode [2018-09-10 12:27:27,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 12:27:27,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 12:27:27,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 12:27:27,896 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 12:27:27,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:27:27" (1/1) ... [2018-09-10 12:27:27,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:27:27" (1/1) ... [2018-09-10 12:27:28,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 12:27:28,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 12:27:28,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 12:27:28,188 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 12:27:28,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:27:27" (1/1) ... [2018-09-10 12:27:28,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:27:27" (1/1) ... [2018-09-10 12:27:28,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:27:27" (1/1) ... [2018-09-10 12:27:28,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:27:27" (1/1) ... [2018-09-10 12:27:28,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:27:27" (1/1) ... [2018-09-10 12:27:28,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:27:27" (1/1) ... [2018-09-10 12:27:29,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:27:27" (1/1) ... [2018-09-10 12:27:29,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 12:27:29,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 12:27:29,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 12:27:29,086 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 12:27:29,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:27:27" (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 [2018-09-10 12:27:29,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 12:27:29,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 12:27:29,164 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 [2018-09-10 12:27:29,164 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 [2018-09-10 12:27:29,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 12:27:29,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 12:27:29,165 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 12:27:29,165 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 12:27:29,165 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 [2018-09-10 12:27:29,165 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 [2018-09-10 12:27:38,682 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 12:27:38,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:27:38 BoogieIcfgContainer [2018-09-10 12:27:38,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 12:27:38,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 12:27:38,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 12:27:38,688 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 12:27:38,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 12:27:25" (1/3) ... [2018-09-10 12:27:38,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66649fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:27:38, skipping insertion in model container [2018-09-10 12:27:38,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:27:27" (2/3) ... [2018-09-10 12:27:38,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66649fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:27:38, skipping insertion in model container [2018-09-10 12:27:38,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:27:38" (3/3) ... [2018-09-10 12:27:38,692 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label24_true-unreach-call.c [2018-09-10 12:27:38,700 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 12:27:38,708 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 12:27:38,768 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 12:27:38,769 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 12:27:38,769 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 12:27:38,770 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 12:27:38,770 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 12:27:38,770 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 12:27:38,770 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 12:27:38,770 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 12:27:38,770 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 12:27:38,825 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-09-10 12:27:38,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-09-10 12:27:38,835 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:27:38,836 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:27:38,837 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:27:38,841 INFO L82 PathProgramCache]: Analyzing trace with hash -641510175, now seen corresponding path program 1 times [2018-09-10 12:27:38,844 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:27:38,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:27:38,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:27:38,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:27:38,896 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:27:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:27:39,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:27:39,447 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:27:39,447 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 12:27:39,447 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:27:39,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 12:27:39,474 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 12:27:39,475 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:27:39,478 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-09-10 12:27:55,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:27:55,202 INFO L93 Difference]: Finished difference Result 2133 states and 3959 transitions. [2018-09-10 12:27:55,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 12:27:55,204 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2018-09-10 12:27:55,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:27:55,233 INFO L225 Difference]: With dead ends: 2133 [2018-09-10 12:27:55,234 INFO L226 Difference]: Without dead ends: 1523 [2018-09-10 12:27:55,244 INFO L604 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 [2018-09-10 12:27:55,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2018-09-10 12:27:55,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1516. [2018-09-10 12:27:55,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1516 states. [2018-09-10 12:27:55,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2287 transitions. [2018-09-10 12:27:55,434 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2287 transitions. Word has length 67 [2018-09-10 12:27:55,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:27:55,435 INFO L480 AbstractCegarLoop]: Abstraction has 1516 states and 2287 transitions. [2018-09-10 12:27:55,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 12:27:55,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2287 transitions. [2018-09-10 12:27:55,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-09-10 12:27:55,449 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:27:55,449 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:27:55,450 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:27:55,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1683064495, now seen corresponding path program 1 times [2018-09-10 12:27:55,450 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:27:55,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:27:55,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:27:55,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:27:55,454 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:27:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:27:55,866 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:27:55,867 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:27:55,867 INFO L197 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 [2018-09-10 12:27:55,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:27:55,885 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:27:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:27:56,000 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:28:02,776 WARN L175 SmtUtils]: Spent 6.26 s on a formula simplification that was a NOOP. DAG size: 42 [2018-09-10 12:28:08,350 WARN L175 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 42 DAG size of output: 21 [2018-09-10 12:28:08,570 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 4 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:28:08,570 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:28:09,844 WARN L175 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 25 [2018-09-10 12:28:10,309 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:28:10,345 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 12:28:10,346 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 15 [2018-09-10 12:28:10,346 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:28:10,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:28:10,348 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:28:10,348 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=163, Unknown=2, NotChecked=0, Total=210 [2018-09-10 12:28:10,350 INFO L87 Difference]: Start difference. First operand 1516 states and 2287 transitions. Second operand 6 states. Received shutdown request... [2018-09-10 12:32:00,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-10 12:32:00,607 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-10 12:32:00,613 WARN L206 ceAbstractionStarter]: Timeout [2018-09-10 12:32:00,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 12:32:00 BoogieIcfgContainer [2018-09-10 12:32:00,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 12:32:00,614 INFO L168 Benchmark]: Toolchain (without parser) took 274723.66 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 2.2 GB in the end (delta: -798.8 MB). Peak memory consumption was 366.1 MB. Max. memory is 7.1 GB. [2018-09-10 12:32:00,615 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. [2018-09-10 12:32:00,616 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2001.04 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. [2018-09-10 12:32:00,617 INFO L168 Benchmark]: Boogie Procedure Inliner took 292.19 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. [2018-09-10 12:32:00,617 INFO L168 Benchmark]: Boogie Preprocessor took 897.20 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 933.8 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.6 MB. Max. memory is 7.1 GB. [2018-09-10 12:32:00,618 INFO L168 Benchmark]: RCFGBuilder took 9597.23 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 499.4 MB). Peak memory consumption was 499.4 MB. Max. memory is 7.1 GB. [2018-09-10 12:32:00,619 INFO L168 Benchmark]: TraceAbstraction took 261929.54 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 231.2 MB). Free memory was 1.9 GB in the beginning and 2.2 GB in the end (delta: -373.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-10 12:32:00,624 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 2001.04 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 292.19 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 897.20 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 933.8 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9597.23 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 499.4 MB). Peak memory consumption was 499.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 261929.54 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 231.2 MB). Free memory was 1.9 GB in the beginning and 2.2 GB in the end (delta: -373.0 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 188]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 188). Cancelled while BasicCegarLoop was constructing difference of abstraction (1516states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (2155 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 261.8s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 246.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 648 SDtfs, 2220 SDslu, 399 SDs, 0 SdLazy, 4179 SolverSat, 1157 SolverUnsat, 110 SolverUnknown, 0 SolverNotchecked, 243.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 298 GetRequests, 282 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 13.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1516occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 15.0s InterpolantComputationTime, 351 NumberOfCodeBlocks, 351 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 489 ConstructedInterpolants, 141 QuantifiedInterpolants, 747837 SizeOfPredicates, 3 NumberOfNonLiveVariables, 295 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 64/180 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/Problem17_label24_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_12-32-00-639.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label24_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_12-32-00-639.csv Completed graceful shutdown