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_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label16_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 14:07:19,521 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 14:07:19,523 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 14:07:19,536 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 14:07:19,536 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 14:07:19,537 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 14:07:19,539 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 14:07:19,540 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 14:07:19,542 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 14:07:19,543 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 14:07:19,543 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 14:07:19,544 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 14:07:19,545 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 14:07:19,546 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 14:07:19,547 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 14:07:19,548 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 14:07:19,550 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 14:07:19,552 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 14:07:19,560 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 14:07:19,563 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 14:07:19,565 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 14:07:19,566 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 14:07:19,570 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 14:07:19,571 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 14:07:19,571 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 14:07:19,575 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 14:07:19,576 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 14:07:19,577 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 14:07:19,581 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 14:07:19,585 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 14:07:19,585 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 14:07:19,586 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-08 14:07:19,588 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 14:07:19,588 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 14:07:19,591 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 14:07:19,592 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 14:07:19,592 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-08-08 14:07:19,616 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 14:07:19,617 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 14:07:19,618 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 14:07:19,618 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 14:07:19,618 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 14:07:19,618 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 14:07:19,618 INFO L133 SettingsManager]: * Congruence Domain=false [2018-08-08 14:07:19,619 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 14:07:19,619 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-08-08 14:07:19,619 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 14:07:19,619 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 14:07:19,619 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-08 14:07:19,620 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 14:07:19,620 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 14:07:19,621 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 14:07:19,621 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 14:07:19,621 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 14:07:19,621 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 14:07:19,621 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 14:07:19,621 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 14:07:19,622 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 14:07:19,622 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 14:07:19,622 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 14:07:19,622 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 14:07:19,623 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 14:07:19,623 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 14:07:19,623 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 14:07:19,623 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 14:07:19,623 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 14:07:19,624 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 14:07:19,624 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 14:07:19,624 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 14:07:19,624 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 14:07:19,624 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 14:07:19,670 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 14:07:19,688 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 14:07:19,695 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 14:07:19,697 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 14:07:19,697 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 14:07:19,698 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label16_true-unreach-call_false-termination.c [2018-08-08 14:07:20,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a2b6fbbb/805fc2e81a7b4eeaaf878182bfecfd12/FLAGbb42ee7ce [2018-08-08 14:07:20,337 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 14:07:20,338 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label16_true-unreach-call_false-termination.c [2018-08-08 14:07:20,357 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a2b6fbbb/805fc2e81a7b4eeaaf878182bfecfd12/FLAGbb42ee7ce [2018-08-08 14:07:20,374 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a2b6fbbb/805fc2e81a7b4eeaaf878182bfecfd12 [2018-08-08 14:07:20,387 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 14:07:20,389 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 14:07:20,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 14:07:20,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 14:07:20,398 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 14:07:20,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 02:07:20" (1/1) ... [2018-08-08 14:07:20,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58237230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:20, skipping insertion in model container [2018-08-08 14:07:20,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 02:07:20" (1/1) ... [2018-08-08 14:07:20,682 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 14:07:21,080 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 14:07:21,097 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 14:07:21,262 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 14:07:21,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:21 WrapperNode [2018-08-08 14:07:21,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 14:07:21,329 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 14:07:21,330 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 14:07:21,330 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 14:07:21,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:21" (1/1) ... [2018-08-08 14:07:21,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:21" (1/1) ... [2018-08-08 14:07:21,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 14:07:21,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 14:07:21,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 14:07:21,448 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 14:07:21,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:21" (1/1) ... [2018-08-08 14:07:21,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:21" (1/1) ... [2018-08-08 14:07:21,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:21" (1/1) ... [2018-08-08 14:07:21,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:21" (1/1) ... [2018-08-08 14:07:21,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:21" (1/1) ... [2018-08-08 14:07:21,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:21" (1/1) ... [2018-08-08 14:07:21,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:21" (1/1) ... [2018-08-08 14:07:21,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 14:07:21,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 14:07:21,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 14:07:21,798 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 14:07:21,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:21" (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 14:07:21,881 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 14:07:21,881 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 14:07:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 14:07:21,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 14:07:21,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 14:07:21,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 14:07:21,883 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 14:07:21,883 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 14:07:25,918 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 14:07:25,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 02:07:25 BoogieIcfgContainer [2018-08-08 14:07:25,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 14:07:25,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 14:07:25,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 14:07:25,928 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 14:07:25,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 02:07:20" (1/3) ... [2018-08-08 14:07:25,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab8304b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 02:07:25, skipping insertion in model container [2018-08-08 14:07:25,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 02:07:21" (2/3) ... [2018-08-08 14:07:25,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab8304b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 02:07:25, skipping insertion in model container [2018-08-08 14:07:25,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 02:07:25" (3/3) ... [2018-08-08 14:07:25,936 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label16_true-unreach-call_false-termination.c [2018-08-08 14:07:25,950 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 14:07:25,965 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 14:07:26,037 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 14:07:26,038 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 14:07:26,038 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 14:07:26,038 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 14:07:26,038 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 14:07:26,038 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 14:07:26,039 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 14:07:26,039 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 14:07:26,039 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 14:07:26,066 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-08-08 14:07:26,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-08-08 14:07:26,076 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:07:26,078 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] [2018-08-08 14:07:26,082 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 14:07:26,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1407938087, now seen corresponding path program 1 times [2018-08-08 14:07:26,090 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:07:26,091 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 54 with the following transitions: [2018-08-08 14:07:26,094 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], [323], [325], [947], [948], [952], [956], [962], [966], [973], [974], [975], [977] [2018-08-08 14:07:26,167 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:07:26,167 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:07:28,029 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:07:28,031 INFO L272 AbstractInterpreter]: Visited 52 different actions 52 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-08-08 14:07:28,045 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:07:29,074 INFO L232 lantSequenceWeakener]: Weakened 51 states. On average, predicates are now at 80.53% of their original sizes. [2018-08-08 14:07:29,074 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:07:29,426 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:07:29,428 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:07:29,428 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-08 14:07:29,429 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:07:29,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-08 14:07:29,445 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-08 14:07:29,446 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 14:07:29,450 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 6 states. [2018-08-08 14:07:35,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:07:35,753 INFO L93 Difference]: Finished difference Result 693 states and 1229 transitions. [2018-08-08 14:07:35,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-08-08 14:07:35,757 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2018-08-08 14:07:35,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:07:35,777 INFO L225 Difference]: With dead ends: 693 [2018-08-08 14:07:35,778 INFO L226 Difference]: Without dead ends: 436 [2018-08-08 14:07:35,785 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 52 GetRequests, 48 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 14:07:35,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2018-08-08 14:07:35,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 434. [2018-08-08 14:07:35,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-08-08 14:07:35,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 615 transitions. [2018-08-08 14:07:35,866 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 615 transitions. Word has length 53 [2018-08-08 14:07:35,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:07:35,867 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 615 transitions. [2018-08-08 14:07:35,867 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-08 14:07:35,868 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 615 transitions. [2018-08-08 14:07:35,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-08-08 14:07:35,874 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:07:35,874 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:07:35,875 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 14:07:35,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1948851963, now seen corresponding path program 1 times [2018-08-08 14:07:35,875 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:07:35,876 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-08-08 14:07:35,876 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], [323], [325], [328], [336], [344], [352], [360], [368], [376], [384], [392], [400], [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 14:07:35,884 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:07:35,884 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:07:44,118 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:07:44,118 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 14:07:44,156 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:07:46,474 INFO L232 lantSequenceWeakener]: Weakened 136 states. On average, predicates are now at 78.56% of their original sizes. [2018-08-08 14:07:46,474 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:07:49,860 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:07:49,861 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:07:49,861 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-08-08 14:07:49,861 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:07:49,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-08-08 14:07:49,863 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-08-08 14:07:49,864 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-08-08 14:07:49,864 INFO L87 Difference]: Start difference. First operand 434 states and 615 transitions. Second operand 14 states. [2018-08-08 14:08:11,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:08:11,483 INFO L93 Difference]: Finished difference Result 1340 states and 2335 transitions. [2018-08-08 14:08:11,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-08-08 14:08:11,484 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 138 [2018-08-08 14:08:11,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:08:11,496 INFO L225 Difference]: With dead ends: 1340 [2018-08-08 14:08:11,496 INFO L226 Difference]: Without dead ends: 1095 [2018-08-08 14:08:11,500 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 150 GetRequests, 99 SyntacticMatches, 26 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2018-08-08 14:08:11,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2018-08-08 14:08:11,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 850. [2018-08-08 14:08:11,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 850 states. [2018-08-08 14:08:11,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1058 transitions. [2018-08-08 14:08:11,557 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1058 transitions. Word has length 138 [2018-08-08 14:08:11,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:08:11,558 INFO L480 AbstractCegarLoop]: Abstraction has 850 states and 1058 transitions. [2018-08-08 14:08:11,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-08-08 14:08:11,559 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1058 transitions. [2018-08-08 14:08:11,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-08-08 14:08:11,563 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:08:11,564 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:08:11,564 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 14:08:11,565 INFO L82 PathProgramCache]: Analyzing trace with hash 961583503, now seen corresponding path program 1 times [2018-08-08 14:08:11,565 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:08:11,565 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 165 with the following transitions: [2018-08-08 14:08:11,565 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], [323], [325], [328], [336], [344], [352], [360], [368], [376], [384], [392], [400], [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 14:08:11,572 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:08:11,572 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:08:22,667 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:08:22,667 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 14:08:22,672 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:08:24,375 INFO L232 lantSequenceWeakener]: Weakened 162 states. On average, predicates are now at 78.36% of their original sizes. [2018-08-08 14:08:24,375 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:08:24,888 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:08:24,889 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:08:24,889 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-08-08 14:08:24,889 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:08:24,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-08-08 14:08:24,890 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-08-08 14:08:24,891 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-08-08 14:08:24,891 INFO L87 Difference]: Start difference. First operand 850 states and 1058 transitions. Second operand 12 states. [2018-08-08 14:08:33,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:08:33,044 INFO L93 Difference]: Finished difference Result 1283 states and 1842 transitions. [2018-08-08 14:08:33,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-08-08 14:08:33,048 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 164 [2018-08-08 14:08:33,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:08:33,061 INFO L225 Difference]: With dead ends: 1283 [2018-08-08 14:08:33,062 INFO L226 Difference]: Without dead ends: 1038 [2018-08-08 14:08:33,064 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 172 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2018-08-08 14:08:33,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2018-08-08 14:08:33,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1035. [2018-08-08 14:08:33,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2018-08-08 14:08:33,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1256 transitions. [2018-08-08 14:08:33,114 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1256 transitions. Word has length 164 [2018-08-08 14:08:33,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:08:33,115 INFO L480 AbstractCegarLoop]: Abstraction has 1035 states and 1256 transitions. [2018-08-08 14:08:33,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-08-08 14:08:33,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1256 transitions. [2018-08-08 14:08:33,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2018-08-08 14:08:33,122 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:08:33,123 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 14:08:33,123 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 14:08:33,124 INFO L82 PathProgramCache]: Analyzing trace with hash 307205691, now seen corresponding path program 1 times [2018-08-08 14:08:33,124 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:08:33,124 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 250 with the following transitions: [2018-08-08 14:08:33,124 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], [323], [325], [328], [336], [344], [352], [360], [368], [376], [384], [392], [400], [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 14:08:33,130 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:08:33,130 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:09:01,750 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:09:01,751 INFO L272 AbstractInterpreter]: Visited 119 different actions 467 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 14:09:01,758 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:09:04,863 INFO L232 lantSequenceWeakener]: Weakened 247 states. On average, predicates are now at 78.04% of their original sizes. [2018-08-08 14:09:04,864 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:09:10,595 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:09:10,595 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:09:10,596 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-08-08 14:09:10,596 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:09:10,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-08-08 14:09:10,597 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-08-08 14:09:10,597 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2018-08-08 14:09:10,597 INFO L87 Difference]: Start difference. First operand 1035 states and 1256 transitions. Second operand 16 states. [2018-08-08 14:09:28,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:09:28,410 INFO L93 Difference]: Finished difference Result 2597 states and 3738 transitions. [2018-08-08 14:09:28,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-08-08 14:09:28,412 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 249 [2018-08-08 14:09:28,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:09:28,423 INFO L225 Difference]: With dead ends: 2597 [2018-08-08 14:09:28,423 INFO L226 Difference]: Without dead ends: 1936 [2018-08-08 14:09:28,427 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 266 GetRequests, 174 SyntacticMatches, 60 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=255, Invalid=867, Unknown=0, NotChecked=0, Total=1122 [2018-08-08 14:09:28,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2018-08-08 14:09:28,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1469. [2018-08-08 14:09:28,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1469 states. [2018-08-08 14:09:28,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 1742 transitions. [2018-08-08 14:09:28,488 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 1742 transitions. Word has length 249 [2018-08-08 14:09:28,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:09:28,489 INFO L480 AbstractCegarLoop]: Abstraction has 1469 states and 1742 transitions. [2018-08-08 14:09:28,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-08-08 14:09:28,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 1742 transitions. [2018-08-08 14:09:28,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2018-08-08 14:09:28,496 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:09:28,496 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 14:09:28,497 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 14:09:28,497 INFO L82 PathProgramCache]: Analyzing trace with hash 663368506, now seen corresponding path program 1 times [2018-08-08 14:09:28,497 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:09:28,497 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 275 with the following transitions: [2018-08-08 14:09:28,498 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], [323], [325], [328], [336], [344], [352], [360], [368], [376], [384], [392], [400], [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 14:09:28,511 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:09:28,512 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:09:38,298 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 14:09:55,709 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:09:55,709 INFO L272 AbstractInterpreter]: Visited 119 different actions 580 times. Merged at 7 different actions 29 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 14:09:55,718 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:09:58,097 INFO L232 lantSequenceWeakener]: Weakened 272 states. On average, predicates are now at 77.97% of their original sizes. [2018-08-08 14:09:58,097 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:09:58,556 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:09:58,556 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:09:58,556 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-08-08 14:09:58,556 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:09:58,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-08-08 14:09:58,557 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-08-08 14:09:58,557 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-08-08 14:09:58,558 INFO L87 Difference]: Start difference. First operand 1469 states and 1742 transitions. Second operand 11 states. [2018-08-08 14:10:10,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:10:10,783 INFO L93 Difference]: Finished difference Result 2091 states and 2894 transitions. [2018-08-08 14:10:10,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-08-08 14:10:10,789 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 274 [2018-08-08 14:10:10,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:10:10,798 INFO L225 Difference]: With dead ends: 2091 [2018-08-08 14:10:10,799 INFO L226 Difference]: Without dead ends: 1846 [2018-08-08 14:10:10,801 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 284 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2018-08-08 14:10:10,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2018-08-08 14:10:10,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1839. [2018-08-08 14:10:10,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1839 states. [2018-08-08 14:10:10,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 2176 transitions. [2018-08-08 14:10:10,875 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 2176 transitions. Word has length 274 [2018-08-08 14:10:10,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:10:10,876 INFO L480 AbstractCegarLoop]: Abstraction has 1839 states and 2176 transitions. [2018-08-08 14:10:10,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-08-08 14:10:10,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 2176 transitions. [2018-08-08 14:10:10,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2018-08-08 14:10:10,885 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:10:10,885 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 14:10:10,886 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 14:10:10,886 INFO L82 PathProgramCache]: Analyzing trace with hash 898966373, now seen corresponding path program 1 times [2018-08-08 14:10:10,886 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:10:10,886 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 353 with the following transitions: [2018-08-08 14:10:10,887 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], [323], [325], [328], [336], [344], [352], [360], [368], [376], [384], [392], [400], [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 14:10:10,891 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:10:10,892 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:10:20,804 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 14:10:45,949 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:10:45,950 INFO L272 AbstractInterpreter]: Visited 120 different actions 827 times. Merged at 8 different actions 53 times. Widened at 1 different actions 2 times. Found 11 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 14:10:45,958 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:10:47,714 INFO L232 lantSequenceWeakener]: Weakened 350 states. On average, predicates are now at 77.85% of their original sizes. [2018-08-08 14:10:47,714 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:10:48,045 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:10:48,046 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:10:48,046 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-08-08 14:10:48,046 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:10:48,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-08-08 14:10:48,046 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-08-08 14:10:48,047 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-08-08 14:10:48,047 INFO L87 Difference]: Start difference. First operand 1839 states and 2176 transitions. Second operand 10 states. [2018-08-08 14:10:55,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 14:10:55,957 INFO L93 Difference]: Finished difference Result 2866 states and 3655 transitions. [2018-08-08 14:10:55,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-08-08 14:10:55,958 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 352 [2018-08-08 14:10:55,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 14:10:55,969 INFO L225 Difference]: With dead ends: 2866 [2018-08-08 14:10:55,969 INFO L226 Difference]: Without dead ends: 2251 [2018-08-08 14:10:55,972 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 359 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-08-08 14:10:55,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2251 states. [2018-08-08 14:10:56,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2251 to 2235. [2018-08-08 14:10:56,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2235 states. [2018-08-08 14:10:56,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 2656 transitions. [2018-08-08 14:10:56,053 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 2656 transitions. Word has length 352 [2018-08-08 14:10:56,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 14:10:56,054 INFO L480 AbstractCegarLoop]: Abstraction has 2235 states and 2656 transitions. [2018-08-08 14:10:56,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-08-08 14:10:56,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 2656 transitions. [2018-08-08 14:10:56,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2018-08-08 14:10:56,061 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 14:10:56,061 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 14:10:56,062 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__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 14:10:56,062 INFO L82 PathProgramCache]: Analyzing trace with hash 2083802508, now seen corresponding path program 1 times [2018-08-08 14:10:56,062 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 14:10:56,062 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 378 with the following transitions: [2018-08-08 14:10:56,063 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], [323], [325], [328], [336], [344], [352], [360], [368], [376], [384], [392], [400], [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], [624], [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 14:10:56,067 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 14:10:56,067 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 14:11:06,368 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 14:11:33,669 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 14:11:33,669 INFO L272 AbstractInterpreter]: Visited 120 different actions 829 times. Merged at 8 different actions 55 times. Widened at 1 different actions 2 times. Found 12 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 14:11:33,678 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 14:11:36,436 INFO L232 lantSequenceWeakener]: Weakened 375 states. On average, predicates are now at 77.81% of their original sizes. [2018-08-08 14:11:36,436 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 14:11:36,793 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 14:11:36,793 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 14:11:36,794 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-08-08 14:11:36,794 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 14:11:36,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-08-08 14:11:36,795 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-08-08 14:11:36,795 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-08-08 14:11:36,795 INFO L87 Difference]: Start difference. First operand 2235 states and 2656 transitions. Second operand 10 states. Received shutdown request... [2018-08-08 14:11:41,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-08-08 14:11:41,615 WARN L549 AbstractCegarLoop]: Verification canceled [2018-08-08 14:11:41,621 WARN L202 ceAbstractionStarter]: Timeout [2018-08-08 14:11:41,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 02:11:41 BoogieIcfgContainer [2018-08-08 14:11:41,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-08 14:11:41,622 INFO L168 Benchmark]: Toolchain (without parser) took 261234.65 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 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-08-08 14:11:41,624 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. [2018-08-08 14:11:41,624 INFO L168 Benchmark]: CACSL2BoogieTranslator took 938.50 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 14:11:41,625 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.30 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 14:11:41,626 INFO L168 Benchmark]: Boogie Preprocessor took 349.48 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 789.6 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -904.5 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. [2018-08-08 14:11:41,627 INFO L168 Benchmark]: RCFGBuilder took 4121.56 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: 157.0 MB). Peak memory consumption was 157.0 MB. Max. memory is 7.1 GB. [2018-08-08 14:11:41,628 INFO L168 Benchmark]: TraceAbstraction took 255700.88 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 3.1 GB in the end (delta: -979.9 MB). Peak memory consumption was 911.2 MB. Max. memory is 7.1 GB. [2018-08-08 14:11:41,633 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 938.50 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 118.30 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 349.48 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 789.6 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -904.5 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4121.56 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: 157.0 MB). Peak memory consumption was 157.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 255700.88 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 3.1 GB in the end (delta: -979.9 MB). Peak memory consumption was 911.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 142]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 142). Cancelled while BasicCegarLoop was constructing difference of abstraction (2235states) and FLOYD_HOARE automaton (currently 13 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (546 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 255.5s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 78.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1426 SDtfs, 9093 SDslu, 1691 SDs, 0 SdLazy, 14156 SolverSat, 2251 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 70.2s Time, PredicateUnifierStatistics: 14 DeclaredPredicates, 1666 GetRequests, 1449 SyntacticMatches, 86 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 997 ImplicationChecksByTransitivity, 14.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2235occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 149.8s AbstIntTime, 7 AbstIntIterations, 7 AbstIntStrong, 0.995155014822134 AbsIntWeakeningRatio, 0.10625 AbsIntAvgWeakeningVarsNumRemoved, 448.69625 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 740 StatesRemovedByMinimization, 6 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_label16_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-08_14-11-41-648.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label16_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-08_14-11-41-648.csv Completed graceful shutdown