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-ToothlessTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label17_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 06:13:02,913 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 06:13:02,915 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 06:13:02,929 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 06:13:02,930 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 06:13:02,931 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 06:13:02,932 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 06:13:02,934 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 06:13:02,935 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 06:13:02,936 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 06:13:02,937 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 06:13:02,937 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 06:13:02,938 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 06:13:02,939 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 06:13:02,940 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 06:13:02,942 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 06:13:02,943 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 06:13:02,945 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 06:13:02,947 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 06:13:02,948 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 06:13:02,949 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 06:13:02,951 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 06:13:02,953 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 06:13:02,954 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 06:13:02,954 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 06:13:02,955 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 06:13:02,956 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 06:13:02,956 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 06:13:02,957 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 06:13:02,958 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 06:13:02,959 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 06:13:02,959 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-08 06:13:02,959 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 06:13:02,960 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 06:13:02,961 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 06:13:02,961 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 06:13:02,962 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-08-08 06:13:02,991 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 06:13:02,991 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 06:13:02,993 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 06:13:02,993 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 06:13:02,993 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 06:13:02,993 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 06:13:02,993 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 06:13:02,994 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-08-08 06:13:02,994 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 06:13:02,994 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 06:13:02,994 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-08 06:13:02,995 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 06:13:02,995 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 06:13:02,996 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 06:13:02,996 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 06:13:02,996 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 06:13:02,996 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 06:13:02,998 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 06:13:02,998 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 06:13:02,998 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 06:13:02,999 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 06:13:02,999 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 06:13:02,999 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 06:13:02,999 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 06:13:03,000 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 06:13:03,000 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 06:13:03,000 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 06:13:03,000 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 06:13:03,000 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 06:13:03,001 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 06:13:03,001 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 06:13:03,001 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 06:13:03,001 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 06:13:03,054 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 06:13:03,068 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 06:13:03,072 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 06:13:03,074 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 06:13:03,074 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 06:13:03,075 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label17_true-unreach-call_false-termination.c [2018-08-08 06:13:03,429 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a47a820be/32a22c665d184d799c3a3d08a01873f9/FLAGe1f0e0931 [2018-08-08 06:13:03,702 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 06:13:03,703 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label17_true-unreach-call_false-termination.c [2018-08-08 06:13:03,725 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a47a820be/32a22c665d184d799c3a3d08a01873f9/FLAGe1f0e0931 [2018-08-08 06:13:03,749 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a47a820be/32a22c665d184d799c3a3d08a01873f9 [2018-08-08 06:13:03,763 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 06:13:03,765 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 06:13:03,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 06:13:03,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 06:13:03,778 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 06:13:03,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 06:13:03" (1/1) ... [2018-08-08 06:13:03,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b36cf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:13:03, skipping insertion in model container [2018-08-08 06:13:03,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 06:13:03" (1/1) ... [2018-08-08 06:13:03,990 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 06:13:04,346 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 06:13:04,362 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 06:13:04,523 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 06:13:04,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:13:04 WrapperNode [2018-08-08 06:13:04,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 06:13:04,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 06:13:04,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 06:13:04,578 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 06:13:04,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:13:04" (1/1) ... [2018-08-08 06:13:04,615 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:13:04" (1/1) ... [2018-08-08 06:13:04,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 06:13:04,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 06:13:04,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 06:13:04,685 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 06:13:04,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:13:04" (1/1) ... [2018-08-08 06:13:04,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:13:04" (1/1) ... [2018-08-08 06:13:04,704 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:13:04" (1/1) ... [2018-08-08 06:13:04,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:13:04" (1/1) ... [2018-08-08 06:13:04,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:13:04" (1/1) ... [2018-08-08 06:13:04,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:13:04" (1/1) ... [2018-08-08 06:13:04,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:13:04" (1/1) ... [2018-08-08 06:13:04,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 06:13:04,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 06:13:04,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 06:13:04,965 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 06:13:04,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:13:04" (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 [2018-08-08 06:13:05,059 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-08-08 06:13:05,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-08-08 06:13:05,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 06:13:05,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 06:13:05,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 06:13:05,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 06:13:05,062 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 06:13:05,062 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 06:13:08,580 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 06:13:08,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 06:13:08 BoogieIcfgContainer [2018-08-08 06:13:08,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 06:13:08,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 06:13:08,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 06:13:08,586 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 06:13:08,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 06:13:03" (1/3) ... [2018-08-08 06:13:08,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1408dfe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 06:13:08, skipping insertion in model container [2018-08-08 06:13:08,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:13:04" (2/3) ... [2018-08-08 06:13:08,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1408dfe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 06:13:08, skipping insertion in model container [2018-08-08 06:13:08,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 06:13:08" (3/3) ... [2018-08-08 06:13:08,598 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label17_true-unreach-call_false-termination.c [2018-08-08 06:13:08,608 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 06:13:08,624 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 06:13:08,678 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 06:13:08,679 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 06:13:08,679 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 06:13:08,679 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 06:13:08,680 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 06:13:08,680 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 06:13:08,680 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 06:13:08,680 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 06:13:08,680 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 06:13:08,708 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-08-08 06:13:08,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-08-08 06:13:08,718 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 06:13:08,719 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] [2018-08-08 06:13:08,721 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 06:13:08,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1045209199, now seen corresponding path program 1 times [2018-08-08 06:13:08,730 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 06:13:08,731 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 64 with the following transitions: [2018-08-08 06:13:08,734 INFO L202 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [403], [405], [947], [948], [952], [956], [962], [966], [973], [974], [975], [977] [2018-08-08 06:13:08,796 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 06:13:08,796 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 06:13:10,464 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 06:13:10,466 INFO L272 AbstractInterpreter]: Visited 62 different actions 62 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-08-08 06:13:10,478 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 06:13:11,442 INFO L232 lantSequenceWeakener]: Weakened 61 states. On average, predicates are now at 80.74% of their original sizes. [2018-08-08 06:13:11,443 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 06:13:11,762 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 06:13:11,764 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 06:13:11,764 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-08 06:13:11,764 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 06:13:11,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-08 06:13:11,777 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-08 06:13:11,778 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 06:13:11,781 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 6 states. [2018-08-08 06:13:16,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 06:13:16,136 INFO L93 Difference]: Finished difference Result 693 states and 1229 transitions. [2018-08-08 06:13:16,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-08-08 06:13:16,142 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2018-08-08 06:13:16,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 06:13:16,160 INFO L225 Difference]: With dead ends: 693 [2018-08-08 06:13:16,160 INFO L226 Difference]: Without dead ends: 436 [2018-08-08 06:13:16,168 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 06:13:16,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2018-08-08 06:13:16,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 434. [2018-08-08 06:13:16,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-08-08 06:13:16,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 615 transitions. [2018-08-08 06:13:16,267 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 615 transitions. Word has length 63 [2018-08-08 06:13:16,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 06:13:16,268 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 615 transitions. [2018-08-08 06:13:16,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-08 06:13:16,268 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 615 transitions. [2018-08-08 06:13:16,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-08-08 06:13:16,282 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 06:13:16,283 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 06:13:16,283 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 06:13:16,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1208138979, now seen corresponding path program 1 times [2018-08-08 06:13:16,284 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 06:13:16,284 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 149 with the following transitions: [2018-08-08 06:13:16,285 INFO L202 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [403], [405], [408], [416], [424], [432], [440], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [552], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-08-08 06:13:16,291 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 06:13:16,291 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 06:13:25,637 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 06:13:25,637 INFO L272 AbstractInterpreter]: Visited 92 different actions 177 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-08-08 06:13:25,676 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 06:13:29,831 INFO L232 lantSequenceWeakener]: Weakened 146 states. On average, predicates are now at 78.81% of their original sizes. [2018-08-08 06:13:29,832 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 06:13:31,711 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 06:13:31,712 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 06:13:31,712 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-08-08 06:13:31,712 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 06:13:31,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-08-08 06:13:31,715 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-08-08 06:13:31,715 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-08-08 06:13:31,715 INFO L87 Difference]: Start difference. First operand 434 states and 615 transitions. Second operand 11 states. [2018-08-08 06:13:47,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 06:13:47,411 INFO L93 Difference]: Finished difference Result 1051 states and 1763 transitions. [2018-08-08 06:13:47,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-08-08 06:13:47,412 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 148 [2018-08-08 06:13:47,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 06:13:47,418 INFO L225 Difference]: With dead ends: 1051 [2018-08-08 06:13:47,419 INFO L226 Difference]: Without dead ends: 806 [2018-08-08 06:13:47,424 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 154 GetRequests, 87 SyntacticMatches, 51 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-08-08 06:13:47,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2018-08-08 06:13:47,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 803. [2018-08-08 06:13:47,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2018-08-08 06:13:47,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1002 transitions. [2018-08-08 06:13:47,478 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1002 transitions. Word has length 148 [2018-08-08 06:13:47,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 06:13:47,479 INFO L480 AbstractCegarLoop]: Abstraction has 803 states and 1002 transitions. [2018-08-08 06:13:47,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-08-08 06:13:47,480 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1002 transitions. [2018-08-08 06:13:47,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-08-08 06:13:47,486 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 06:13:47,486 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 06:13:47,487 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 06:13:47,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1425635721, now seen corresponding path program 1 times [2018-08-08 06:13:47,487 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 06:13:47,488 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 175 with the following transitions: [2018-08-08 06:13:47,488 INFO L202 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [403], [405], [408], [416], [424], [432], [440], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [625], [629], [633], [637], [641], [645], [649], [653], [656], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-08-08 06:13:47,494 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 06:13:47,494 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 06:14:07,706 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 06:14:07,707 INFO L272 AbstractInterpreter]: Visited 118 different actions 230 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-08-08 06:14:07,714 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 06:14:15,574 INFO L232 lantSequenceWeakener]: Weakened 172 states. On average, predicates are now at 78.58% of their original sizes. [2018-08-08 06:14:15,574 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 06:14:17,096 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 06:14:17,097 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 06:14:17,097 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-08-08 06:14:17,098 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 06:14:17,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-08-08 06:14:17,099 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-08-08 06:14:17,099 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-08-08 06:14:17,100 INFO L87 Difference]: Start difference. First operand 803 states and 1002 transitions. Second operand 11 states. [2018-08-08 06:14:25,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 06:14:25,265 INFO L93 Difference]: Finished difference Result 1236 states and 1786 transitions. [2018-08-08 06:14:25,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-08-08 06:14:25,270 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 174 [2018-08-08 06:14:25,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 06:14:25,277 INFO L225 Difference]: With dead ends: 1236 [2018-08-08 06:14:25,277 INFO L226 Difference]: Without dead ends: 991 [2018-08-08 06:14:25,279 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 181 GetRequests, 113 SyntacticMatches, 51 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-08-08 06:14:25,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2018-08-08 06:14:25,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 988. [2018-08-08 06:14:25,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 988 states. [2018-08-08 06:14:25,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1200 transitions. [2018-08-08 06:14:25,322 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1200 transitions. Word has length 174 [2018-08-08 06:14:25,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 06:14:25,323 INFO L480 AbstractCegarLoop]: Abstraction has 988 states and 1200 transitions. [2018-08-08 06:14:25,323 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-08-08 06:14:25,323 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1200 transitions. [2018-08-08 06:14:25,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2018-08-08 06:14:25,331 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 06:14:25,332 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 06:14:25,332 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 06:14:25,332 INFO L82 PathProgramCache]: Analyzing trace with hash -123214973, now seen corresponding path program 1 times [2018-08-08 06:14:25,333 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 06:14:25,333 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 260 with the following transitions: [2018-08-08 06:14:25,333 INFO L202 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [403], [405], [408], [416], [424], [432], [440], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [552], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [625], [629], [633], [637], [641], [645], [649], [653], [656], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-08-08 06:14:25,339 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 06:14:25,339 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 06:14:42,479 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 06:14:42,479 INFO L272 AbstractInterpreter]: Visited 119 different actions 352 times. Merged at 7 different actions 17 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 06:14:42,487 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 06:14:45,663 INFO L232 lantSequenceWeakener]: Weakened 257 states. On average, predicates are now at 78.17% of their original sizes. [2018-08-08 06:14:45,663 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 06:14:46,453 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 06:14:46,453 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 06:14:46,453 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-08-08 06:14:46,454 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 06:14:46,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-08-08 06:14:46,455 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-08-08 06:14:46,455 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2018-08-08 06:14:46,455 INFO L87 Difference]: Start difference. First operand 988 states and 1200 transitions. Second operand 16 states. [2018-08-08 06:15:05,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 06:15:05,196 INFO L93 Difference]: Finished difference Result 2043 states and 3188 transitions. [2018-08-08 06:15:05,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-08-08 06:15:05,197 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 259 [2018-08-08 06:15:05,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 06:15:05,214 INFO L225 Difference]: With dead ends: 2043 [2018-08-08 06:15:05,214 INFO L226 Difference]: Without dead ends: 1798 [2018-08-08 06:15:05,219 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 277 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=260, Invalid=930, Unknown=0, NotChecked=0, Total=1190 [2018-08-08 06:15:05,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1798 states. [2018-08-08 06:15:05,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1798 to 1605. [2018-08-08 06:15:05,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1605 states. [2018-08-08 06:15:05,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 1893 transitions. [2018-08-08 06:15:05,285 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 1893 transitions. Word has length 259 [2018-08-08 06:15:05,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 06:15:05,286 INFO L480 AbstractCegarLoop]: Abstraction has 1605 states and 1893 transitions. [2018-08-08 06:15:05,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-08-08 06:15:05,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 1893 transitions. [2018-08-08 06:15:05,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2018-08-08 06:15:05,293 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 06:15:05,293 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-08-08 06:15:05,294 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 06:15:05,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1502200382, now seen corresponding path program 1 times [2018-08-08 06:15:05,294 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 06:15:05,294 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 285 with the following transitions: [2018-08-08 06:15:05,295 INFO L202 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [403], [405], [408], [416], [424], [432], [440], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [625], [629], [633], [637], [641], [645], [649], [652], [653], [656], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-08-08 06:15:05,302 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 06:15:05,302 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 06:15:28,428 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 06:15:48,661 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 06:15:48,662 INFO L272 AbstractInterpreter]: Visited 119 different actions 465 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 06:15:48,697 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 06:15:53,656 INFO L232 lantSequenceWeakener]: Weakened 282 states. On average, predicates are now at 78.11% of their original sizes. [2018-08-08 06:15:53,657 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 06:15:56,832 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 06:15:56,832 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 06:15:56,833 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-08-08 06:15:56,833 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 06:15:56,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-08-08 06:15:56,834 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-08-08 06:15:56,834 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-08-08 06:15:56,835 INFO L87 Difference]: Start difference. First operand 1605 states and 1893 transitions. Second operand 11 states. [2018-08-08 06:16:04,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 06:16:04,165 INFO L93 Difference]: Finished difference Result 2044 states and 2683 transitions. [2018-08-08 06:16:04,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-08-08 06:16:04,174 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 284 [2018-08-08 06:16:04,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 06:16:04,184 INFO L225 Difference]: With dead ends: 2044 [2018-08-08 06:16:04,184 INFO L226 Difference]: Without dead ends: 1799 [2018-08-08 06:16:04,186 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 292 GetRequests, 223 SyntacticMatches, 51 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-08-08 06:16:04,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2018-08-08 06:16:04,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1792. [2018-08-08 06:16:04,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1792 states. [2018-08-08 06:16:04,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 2111 transitions. [2018-08-08 06:16:04,259 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 2111 transitions. Word has length 284 [2018-08-08 06:16:04,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 06:16:04,260 INFO L480 AbstractCegarLoop]: Abstraction has 1792 states and 2111 transitions. [2018-08-08 06:16:04,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-08-08 06:16:04,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 2111 transitions. [2018-08-08 06:16:04,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2018-08-08 06:16:04,269 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 06:16:04,270 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 06:16:04,270 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 06:16:04,270 INFO L82 PathProgramCache]: Analyzing trace with hash 235783053, now seen corresponding path program 1 times [2018-08-08 06:16:04,270 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 06:16:04,271 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 363 with the following transitions: [2018-08-08 06:16:04,271 INFO L202 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [255], [263], [271], [279], [287], [295], [303], [311], [319], [327], [335], [343], [351], [359], [367], [375], [383], [391], [399], [403], [405], [408], [416], [424], [432], [440], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [524], [525], [529], [533], [537], [541], [545], [549], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [625], [629], [633], [637], [641], [645], [649], [652], [653], [656], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-08-08 06:16:04,276 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 06:16:04,277 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 06:16:26,838 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 06:16:47,662 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 06:16:47,663 INFO L272 AbstractInterpreter]: Visited 120 different actions 710 times. Merged at 8 different actions 45 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 06:16:47,702 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-08-08 06:16:50,776 INFO L232 lantSequenceWeakener]: Weakened 360 states. On average, predicates are now at 77.94% of their original sizes. [2018-08-08 06:16:50,777 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 06:16:50,842 WARN L549 AbstractCegarLoop]: Verification canceled [2018-08-08 06:16:50,847 WARN L202 ceAbstractionStarter]: Timeout [2018-08-08 06:16:50,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 06:16:50 BoogieIcfgContainer [2018-08-08 06:16:50,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-08 06:16:50,848 INFO L168 Benchmark]: Toolchain (without parser) took 227084.13 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 3.7 GB in the end (delta: -2.3 GB). Peak memory consumption was 431.3 MB. Max. memory is 7.1 GB. [2018-08-08 06:16:50,850 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-08-08 06:16:50,850 INFO L168 Benchmark]: CACSL2BoogieTranslator took 809.25 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. [2018-08-08 06:16:50,851 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.53 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. [2018-08-08 06:16:50,853 INFO L168 Benchmark]: Boogie Preprocessor took 279.48 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 800.1 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -889.0 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. [2018-08-08 06:16:50,854 INFO L168 Benchmark]: RCFGBuilder took 3617.08 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: 153.7 MB). Peak memory consumption was 153.7 MB. Max. memory is 7.1 GB. [2018-08-08 06:16:50,855 INFO L168 Benchmark]: TraceAbstraction took 222264.65 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 3.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 313.7 MB. Max. memory is 7.1 GB. [2018-08-08 06:16:50,861 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 809.25 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 106.53 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 279.48 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 800.1 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -889.0 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3617.08 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: 153.7 MB). Peak memory consumption was 153.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 222264.65 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 3.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 313.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 172]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 172). Cancelled while BasicCegarLoop was analyzing trace of length 363 with TraceHistMax 4, while AbsIntCurrentIteration was generating AI predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 3 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 222.1s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 54.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1204 SDtfs, 5361 SDslu, 1473 SDs, 0 SdLazy, 10783 SolverSat, 1514 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 48.4s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 966 GetRequests, 725 SyntacticMatches, 153 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1390 ImplicationChecksByTransitivity, 9.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1792occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 135.3s AbstIntTime, 6 AbstIntIterations, 6 AbstIntStrong, 0.9950800672306155 AbsIntWeakeningRatio, 0.10747663551401869 AbsIntAvgWeakeningVarsNumRemoved, 484.14719626168227 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 208 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, 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/Problem14_label17_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-08_06-16-50-882.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label17_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-08_06-16-50-882.csv Completed graceful shutdown