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/Problem10_label01_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 13:17:52,037 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 13:17:52,038 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 13:17:52,050 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 13:17:52,050 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 13:17:52,051 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 13:17:52,052 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 13:17:52,054 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 13:17:52,056 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 13:17:52,056 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 13:17:52,057 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 13:17:52,057 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 13:17:52,058 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 13:17:52,059 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 13:17:52,060 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 13:17:52,061 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 13:17:52,062 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 13:17:52,064 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 13:17:52,066 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 13:17:52,067 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 13:17:52,068 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 13:17:52,069 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 13:17:52,072 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 13:17:52,072 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 13:17:52,072 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 13:17:52,073 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 13:17:52,074 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 13:17:52,075 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 13:17:52,076 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 13:17:52,077 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 13:17:52,077 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 13:17:52,078 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-08 13:17:52,078 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 13:17:52,078 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 13:17:52,079 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 13:17:52,080 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 13:17:52,080 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 13:17:52,113 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 13:17:52,113 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 13:17:52,114 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 13:17:52,114 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 13:17:52,115 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 13:17:52,115 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 13:17:52,115 INFO L133 SettingsManager]: * Congruence Domain=false [2018-08-08 13:17:52,115 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 13:17:52,115 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-08-08 13:17:52,115 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 13:17:52,116 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 13:17:52,116 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-08 13:17:52,117 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 13:17:52,117 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 13:17:52,117 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 13:17:52,117 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 13:17:52,117 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 13:17:52,117 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 13:17:52,118 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 13:17:52,118 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 13:17:52,118 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 13:17:52,118 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 13:17:52,118 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 13:17:52,119 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 13:17:52,119 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 13:17:52,119 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 13:17:52,119 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 13:17:52,119 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 13:17:52,120 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 13:17:52,120 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 13:17:52,120 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 13:17:52,120 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 13:17:52,120 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 13:17:52,120 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 13:17:52,167 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 13:17:52,181 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 13:17:52,187 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 13:17:52,188 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 13:17:52,189 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 13:17:52,189 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label01_true-unreach-call.c [2018-08-08 13:17:52,551 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1012914c3/200edc6ac1934a079bb0a651f3f5cfa2/FLAG58c791bbf [2018-08-08 13:17:52,847 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 13:17:52,853 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label01_true-unreach-call.c [2018-08-08 13:17:52,875 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1012914c3/200edc6ac1934a079bb0a651f3f5cfa2/FLAG58c791bbf [2018-08-08 13:17:52,900 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1012914c3/200edc6ac1934a079bb0a651f3f5cfa2 [2018-08-08 13:17:52,912 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 13:17:52,917 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 13:17:52,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 13:17:52,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 13:17:52,928 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 13:17:52,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 01:17:52" (1/1) ... [2018-08-08 13:17:52,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@be461d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:17:52, skipping insertion in model container [2018-08-08 13:17:52,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 01:17:52" (1/1) ... [2018-08-08 13:17:53,144 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 13:17:53,388 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 13:17:53,404 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 13:17:53,581 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 13:17:53,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:17:53 WrapperNode [2018-08-08 13:17:53,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 13:17:53,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 13:17:53,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 13:17:53,646 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 13:17:53,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:17:53" (1/1) ... [2018-08-08 13:17:53,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:17:53" (1/1) ... [2018-08-08 13:17:53,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 13:17:53,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 13:17:53,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 13:17:53,761 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 13:17:53,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:17:53" (1/1) ... [2018-08-08 13:17:53,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:17:53" (1/1) ... [2018-08-08 13:17:53,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:17:53" (1/1) ... [2018-08-08 13:17:53,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:17:53" (1/1) ... [2018-08-08 13:17:53,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:17:53" (1/1) ... [2018-08-08 13:17:54,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:17:53" (1/1) ... [2018-08-08 13:17:54,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:17:53" (1/1) ... [2018-08-08 13:17:54,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 13:17:54,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 13:17:54,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 13:17:54,027 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 13:17:54,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:17:53" (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 13:17:54,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 13:17:54,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 13:17:54,108 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-08-08 13:17:54,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-08-08 13:17:54,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 13:17:54,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 13:17:54,110 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 13:17:54,110 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 13:17:57,559 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 13:17:57,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 01:17:57 BoogieIcfgContainer [2018-08-08 13:17:57,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 13:17:57,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 13:17:57,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 13:17:57,569 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 13:17:57,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 01:17:52" (1/3) ... [2018-08-08 13:17:57,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498dd857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 01:17:57, skipping insertion in model container [2018-08-08 13:17:57,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 01:17:53" (2/3) ... [2018-08-08 13:17:57,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498dd857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 01:17:57, skipping insertion in model container [2018-08-08 13:17:57,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 01:17:57" (3/3) ... [2018-08-08 13:17:57,574 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label01_true-unreach-call.c [2018-08-08 13:17:57,590 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 13:17:57,612 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 13:17:57,695 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 13:17:57,696 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 13:17:57,696 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 13:17:57,696 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 13:17:57,696 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 13:17:57,696 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 13:17:57,697 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 13:17:57,697 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 13:17:57,697 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 13:17:57,735 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-08-08 13:17:57,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-08-08 13:17:57,753 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:17:57,755 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] [2018-08-08 13:17:57,756 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 13:17:57,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1691291748, now seen corresponding path program 1 times [2018-08-08 13:17:57,765 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:17:57,766 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 61 with the following transitions: [2018-08-08 13:17:57,770 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [381], [383], [796], [800], [806], [810], [817], [818], [819], [821] [2018-08-08 13:17:57,835 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:17:57,835 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:17:59,541 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:17:59,542 INFO L272 AbstractInterpreter]: Visited 59 different actions 59 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-08-08 13:17:59,584 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:18:00,345 INFO L232 lantSequenceWeakener]: Weakened 58 states. On average, predicates are now at 75.92% of their original sizes. [2018-08-08 13:18:00,345 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:18:00,642 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:18:00,643 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:18:00,644 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-08 13:18:00,644 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:18:00,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-08 13:18:00,660 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-08 13:18:00,661 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 13:18:00,663 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-08-08 13:18:04,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:18:04,287 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-08-08 13:18:04,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-08-08 13:18:04,289 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2018-08-08 13:18:04,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:18:04,315 INFO L225 Difference]: With dead ends: 576 [2018-08-08 13:18:04,316 INFO L226 Difference]: Without dead ends: 358 [2018-08-08 13:18:04,323 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 13:18:04,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-08-08 13:18:04,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-08-08 13:18:04,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-08-08 13:18:04,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-08-08 13:18:04,411 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 60 [2018-08-08 13:18:04,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:18:04,412 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-08-08 13:18:04,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-08 13:18:04,413 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-08-08 13:18:04,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-08-08 13:18:04,420 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:18:04,420 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, 1, 1, 1, 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 13:18:04,421 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 13:18:04,421 INFO L82 PathProgramCache]: Analyzing trace with hash 703281579, now seen corresponding path program 1 times [2018-08-08 13:18:04,421 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:18:04,422 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 132 with the following transitions: [2018-08-08 13:18:04,422 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [381], [383], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-08-08 13:18:04,428 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:18:04,428 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:18:05,867 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 13:18:08,665 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:18:08,665 INFO L272 AbstractInterpreter]: Visited 78 different actions 150 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 13:18:08,673 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:18:10,822 INFO L232 lantSequenceWeakener]: Weakened 129 states. On average, predicates are now at 74.27% of their original sizes. [2018-08-08 13:18:10,827 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:18:11,778 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:18:11,779 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:18:11,779 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-08-08 13:18:11,779 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:18:11,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-08-08 13:18:11,781 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-08-08 13:18:11,781 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-08-08 13:18:11,782 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand 10 states. [2018-08-08 13:18:24,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:18:24,370 INFO L93 Difference]: Finished difference Result 711 states and 1126 transitions. [2018-08-08 13:18:24,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-08-08 13:18:24,374 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 131 [2018-08-08 13:18:24,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:18:24,380 INFO L225 Difference]: With dead ends: 711 [2018-08-08 13:18:24,380 INFO L226 Difference]: Without dead ends: 505 [2018-08-08 13:18:24,383 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 137 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-08-08 13:18:24,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-08-08 13:18:24,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 502. [2018-08-08 13:18:24,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2018-08-08 13:18:24,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 655 transitions. [2018-08-08 13:18:24,448 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 655 transitions. Word has length 131 [2018-08-08 13:18:24,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:18:24,450 INFO L480 AbstractCegarLoop]: Abstraction has 502 states and 655 transitions. [2018-08-08 13:18:24,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-08-08 13:18:24,450 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 655 transitions. [2018-08-08 13:18:24,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-08-08 13:18:24,455 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:18:24,455 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:18:24,455 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 13:18:24,456 INFO L82 PathProgramCache]: Analyzing trace with hash 999905648, now seen corresponding path program 1 times [2018-08-08 13:18:24,456 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:18:24,456 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-08-08 13:18:24,457 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [381], [383], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-08-08 13:18:24,461 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:18:24,461 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:18:30,405 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:18:30,405 INFO L272 AbstractInterpreter]: Visited 87 different actions 167 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-08-08 13:18:30,409 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:18:31,589 INFO L232 lantSequenceWeakener]: Weakened 138 states. On average, predicates are now at 74.17% of their original sizes. [2018-08-08 13:18:31,589 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:18:32,196 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:18:32,197 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:18:32,197 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-08-08 13:18:32,197 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:18:32,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-08-08 13:18:32,198 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-08-08 13:18:32,198 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-08-08 13:18:32,199 INFO L87 Difference]: Start difference. First operand 502 states and 655 transitions. Second operand 12 states. [2018-08-08 13:18:41,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:18:41,112 INFO L93 Difference]: Finished difference Result 1002 states and 1569 transitions. [2018-08-08 13:18:41,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-08-08 13:18:41,113 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 140 [2018-08-08 13:18:41,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:18:41,121 INFO L225 Difference]: With dead ends: 1002 [2018-08-08 13:18:41,122 INFO L226 Difference]: Without dead ends: 796 [2018-08-08 13:18:41,124 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 147 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-08-08 13:18:41,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2018-08-08 13:18:41,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 793. [2018-08-08 13:18:41,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 793 states. [2018-08-08 13:18:41,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 962 transitions. [2018-08-08 13:18:41,165 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 962 transitions. Word has length 140 [2018-08-08 13:18:41,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:18:41,166 INFO L480 AbstractCegarLoop]: Abstraction has 793 states and 962 transitions. [2018-08-08 13:18:41,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-08-08 13:18:41,166 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 962 transitions. [2018-08-08 13:18:41,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-08-08 13:18:41,171 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:18:41,172 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:18:41,172 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 13:18:41,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1433611800, now seen corresponding path program 1 times [2018-08-08 13:18:41,172 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:18:41,173 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 177 with the following transitions: [2018-08-08 13:18:41,173 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [381], [383], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-08-08 13:18:41,179 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:18:41,179 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:18:45,629 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 13:18:56,496 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:18:56,496 INFO L272 AbstractInterpreter]: Visited 123 different actions 356 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-08-08 13:18:56,509 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:18:58,933 INFO L232 lantSequenceWeakener]: Weakened 174 states. On average, predicates are now at 73.87% of their original sizes. [2018-08-08 13:18:58,934 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:18:59,922 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:18:59,922 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:18:59,922 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-08-08 13:18:59,923 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:18:59,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-08-08 13:18:59,924 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-08-08 13:18:59,924 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-08-08 13:18:59,924 INFO L87 Difference]: Start difference. First operand 793 states and 962 transitions. Second operand 14 states. [2018-08-08 13:19:09,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:19:09,901 INFO L93 Difference]: Finished difference Result 1161 states and 1610 transitions. [2018-08-08 13:19:09,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-08-08 13:19:09,906 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 176 [2018-08-08 13:19:09,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:19:09,912 INFO L225 Difference]: With dead ends: 1161 [2018-08-08 13:19:09,912 INFO L226 Difference]: Without dead ends: 955 [2018-08-08 13:19:09,914 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 187 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=154, Invalid=496, Unknown=0, NotChecked=0, Total=650 [2018-08-08 13:19:09,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2018-08-08 13:19:09,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 943. [2018-08-08 13:19:09,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943 states. [2018-08-08 13:19:09,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1137 transitions. [2018-08-08 13:19:09,958 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1137 transitions. Word has length 176 [2018-08-08 13:19:09,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:19:09,959 INFO L480 AbstractCegarLoop]: Abstraction has 943 states and 1137 transitions. [2018-08-08 13:19:09,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-08-08 13:19:09,959 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1137 transitions. [2018-08-08 13:19:09,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-08-08 13:19:09,963 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:19:09,963 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:19:09,963 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 13:19:09,964 INFO L82 PathProgramCache]: Analyzing trace with hash -627860181, now seen corresponding path program 1 times [2018-08-08 13:19:09,964 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:19:09,964 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 196 with the following transitions: [2018-08-08 13:19:09,965 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [381], [383], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [754], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-08-08 13:19:09,970 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:19:09,970 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:19:24,346 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:19:24,346 INFO L272 AbstractInterpreter]: Visited 142 different actions 278 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 13:19:24,352 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:19:26,664 INFO L232 lantSequenceWeakener]: Weakened 193 states. On average, predicates are now at 73.76% of their original sizes. [2018-08-08 13:19:26,665 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:19:28,484 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:19:28,485 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:19:28,485 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-08-08 13:19:28,485 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:19:28,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-08-08 13:19:28,486 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-08-08 13:19:28,486 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2018-08-08 13:19:28,486 INFO L87 Difference]: Start difference. First operand 943 states and 1137 transitions. Second operand 18 states. [2018-08-08 13:19:39,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:19:39,932 INFO L93 Difference]: Finished difference Result 1561 states and 2167 transitions. [2018-08-08 13:19:39,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-08-08 13:19:39,934 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 195 [2018-08-08 13:19:39,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:19:39,941 INFO L225 Difference]: With dead ends: 1561 [2018-08-08 13:19:39,942 INFO L226 Difference]: Without dead ends: 1207 [2018-08-08 13:19:39,944 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 211 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2018-08-08 13:19:39,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2018-08-08 13:19:40,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1205. [2018-08-08 13:19:40,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1205 states. [2018-08-08 13:19:40,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1418 transitions. [2018-08-08 13:19:40,010 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1418 transitions. Word has length 195 [2018-08-08 13:19:40,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:19:40,011 INFO L480 AbstractCegarLoop]: Abstraction has 1205 states and 1418 transitions. [2018-08-08 13:19:40,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-08-08 13:19:40,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1418 transitions. [2018-08-08 13:19:40,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-08-08 13:19:40,015 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:19:40,015 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, 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] [2018-08-08 13:19:40,016 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 13:19:40,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1484130887, now seen corresponding path program 1 times [2018-08-08 13:19:40,016 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:19:40,016 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 208 with the following transitions: [2018-08-08 13:19:40,017 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [381], [383], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [518], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-08-08 13:19:40,028 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:19:40,028 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:19:41,549 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 13:19:48,848 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:19:48,848 INFO L272 AbstractInterpreter]: Visited 84 different actions 244 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 13:19:48,854 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:19:50,904 INFO L232 lantSequenceWeakener]: Weakened 205 states. On average, predicates are now at 73.75% of their original sizes. [2018-08-08 13:19:50,904 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:19:51,498 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:19:51,498 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:19:51,498 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-08-08 13:19:51,498 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:19:51,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-08-08 13:19:51,499 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-08-08 13:19:51,499 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-08-08 13:19:51,499 INFO L87 Difference]: Start difference. First operand 1205 states and 1418 transitions. Second operand 11 states. [2018-08-08 13:19:59,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:19:59,401 INFO L93 Difference]: Finished difference Result 1717 states and 2233 transitions. [2018-08-08 13:19:59,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-08-08 13:19:59,402 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 207 [2018-08-08 13:19:59,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:19:59,410 INFO L225 Difference]: With dead ends: 1717 [2018-08-08 13:19:59,411 INFO L226 Difference]: Without dead ends: 1363 [2018-08-08 13:19:59,413 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 216 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2018-08-08 13:19:59,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2018-08-08 13:19:59,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1353. [2018-08-08 13:19:59,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1353 states. [2018-08-08 13:19:59,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 1584 transitions. [2018-08-08 13:19:59,477 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 1584 transitions. Word has length 207 [2018-08-08 13:19:59,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:19:59,478 INFO L480 AbstractCegarLoop]: Abstraction has 1353 states and 1584 transitions. [2018-08-08 13:19:59,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-08-08 13:19:59,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 1584 transitions. [2018-08-08 13:19:59,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-08-08 13:19:59,482 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:19:59,482 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, 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] [2018-08-08 13:19:59,483 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 13:19:59,483 INFO L82 PathProgramCache]: Analyzing trace with hash -2142524033, now seen corresponding path program 1 times [2018-08-08 13:19:59,483 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:19:59,483 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 212 with the following transitions: [2018-08-08 13:19:59,484 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [381], [383], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-08-08 13:19:59,487 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:19:59,487 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:20:01,063 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 13:20:20,825 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:20:20,826 INFO L272 AbstractInterpreter]: Visited 88 different actions 511 times. Merged at 7 different actions 38 times. Widened at 1 different actions 1 times. Found 7 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 13:20:20,835 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:20:23,283 INFO L232 lantSequenceWeakener]: Weakened 209 states. On average, predicates are now at 73.73% of their original sizes. [2018-08-08 13:20:23,283 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:20:24,432 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:20:24,432 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:20:24,433 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-08-08 13:20:24,433 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:20:24,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-08-08 13:20:24,433 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-08-08 13:20:24,434 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-08-08 13:20:24,434 INFO L87 Difference]: Start difference. First operand 1353 states and 1584 transitions. Second operand 15 states. [2018-08-08 13:20:39,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:20:39,706 INFO L93 Difference]: Finished difference Result 2559 states and 3382 transitions. [2018-08-08 13:20:39,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-08-08 13:20:39,707 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 211 [2018-08-08 13:20:39,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:20:39,717 INFO L225 Difference]: With dead ends: 2559 [2018-08-08 13:20:39,717 INFO L226 Difference]: Without dead ends: 2057 [2018-08-08 13:20:39,719 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 222 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2018-08-08 13:20:39,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2057 states. [2018-08-08 13:20:39,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2057 to 2037. [2018-08-08 13:20:39,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2037 states. [2018-08-08 13:20:39,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2037 states to 2037 states and 2424 transitions. [2018-08-08 13:20:39,812 INFO L78 Accepts]: Start accepts. Automaton has 2037 states and 2424 transitions. Word has length 211 [2018-08-08 13:20:39,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:20:39,813 INFO L480 AbstractCegarLoop]: Abstraction has 2037 states and 2424 transitions. [2018-08-08 13:20:39,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-08-08 13:20:39,813 INFO L276 IsEmpty]: Start isEmpty. Operand 2037 states and 2424 transitions. [2018-08-08 13:20:39,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-08-08 13:20:39,819 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:20:39,819 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, 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] [2018-08-08 13:20:39,819 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 13:20:39,820 INFO L82 PathProgramCache]: Analyzing trace with hash 474917064, now seen corresponding path program 1 times [2018-08-08 13:20:39,820 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:20:39,820 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 245 with the following transitions: [2018-08-08 13:20:39,820 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [381], [383], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-08-08 13:20:39,823 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:20:39,824 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:20:41,332 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 13:21:02,940 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:21:02,940 INFO L272 AbstractInterpreter]: Visited 121 different actions 356 times. Merged at 7 different actions 15 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 13:21:02,948 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:21:06,690 INFO L232 lantSequenceWeakener]: Weakened 242 states. On average, predicates are now at 73.6% of their original sizes. [2018-08-08 13:21:06,690 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 13:21:08,895 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 13:21:08,895 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 13:21:08,896 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2018-08-08 13:21:08,896 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 13:21:08,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-08-08 13:21:08,896 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-08-08 13:21:08,897 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2018-08-08 13:21:08,897 INFO L87 Difference]: Start difference. First operand 2037 states and 2424 transitions. Second operand 19 states. [2018-08-08 13:21:31,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 13:21:31,641 INFO L93 Difference]: Finished difference Result 4438 states and 5613 transitions. [2018-08-08 13:21:31,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-08-08 13:21:31,642 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 244 [2018-08-08 13:21:31,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 13:21:31,658 INFO L225 Difference]: With dead ends: 4438 [2018-08-08 13:21:31,658 INFO L226 Difference]: Without dead ends: 2961 [2018-08-08 13:21:31,665 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 262 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=341, Invalid=1065, Unknown=0, NotChecked=0, Total=1406 [2018-08-08 13:21:31,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2018-08-08 13:21:31,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 2897. [2018-08-08 13:21:31,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2897 states. [2018-08-08 13:21:31,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2897 states to 2897 states and 3445 transitions. [2018-08-08 13:21:31,819 INFO L78 Accepts]: Start accepts. Automaton has 2897 states and 3445 transitions. Word has length 244 [2018-08-08 13:21:31,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 13:21:31,820 INFO L480 AbstractCegarLoop]: Abstraction has 2897 states and 3445 transitions. [2018-08-08 13:21:31,820 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-08-08 13:21:31,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2897 states and 3445 transitions. [2018-08-08 13:21:31,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2018-08-08 13:21:31,828 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 13:21:31,828 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, 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] [2018-08-08 13:21:31,829 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 13:21:31,829 INFO L82 PathProgramCache]: Analyzing trace with hash -696568837, now seen corresponding path program 1 times [2018-08-08 13:21:31,829 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 13:21:31,830 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 250 with the following transitions: [2018-08-08 13:21:31,830 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [381], [383], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-08-08 13:21:31,834 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-08-08 13:21:31,834 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 13:21:36,668 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 13:22:08,147 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 13:22:08,147 INFO L272 AbstractInterpreter]: Visited 124 different actions 604 times. Merged at 7 different actions 28 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 13:22:08,154 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 13:22:11,289 INFO L232 lantSequenceWeakener]: Weakened 247 states. On average, predicates are now at 73.58% of their original sizes. [2018-08-08 13:22:11,289 INFO L412 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-08-08 13:22:15,505 WARN L549 AbstractCegarLoop]: Verification canceled [2018-08-08 13:22:15,509 WARN L202 ceAbstractionStarter]: Timeout [2018-08-08 13:22:15,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 01:22:15 BoogieIcfgContainer [2018-08-08 13:22:15,510 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-08 13:22:15,510 INFO L168 Benchmark]: Toolchain (without parser) took 262597.38 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 3.6 GB in the end (delta: -2.2 GB). Peak memory consumption was 292.7 MB. Max. memory is 7.1 GB. [2018-08-08 13:22:15,512 INFO L168 Benchmark]: CDTParser took 0.20 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 13:22:15,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 727.30 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-08-08 13:22:15,513 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.41 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 13:22:15,514 INFO L168 Benchmark]: Boogie Preprocessor took 265.20 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 772.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -863.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. [2018-08-08 13:22:15,515 INFO L168 Benchmark]: RCFGBuilder took 3535.20 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 109.8 MB). Peak memory consumption was 109.8 MB. Max. memory is 7.1 GB. [2018-08-08 13:22:15,516 INFO L168 Benchmark]: TraceAbstraction took 257946.06 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 2.1 GB in the beginning and 3.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 221.0 MB. Max. memory is 7.1 GB. [2018-08-08 13:22:15,521 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 727.30 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 114.41 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 265.20 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 772.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -863.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3535.20 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 109.8 MB). Peak memory consumption was 109.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 257946.06 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 2.1 GB in the beginning and 3.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 221.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 163]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 163). Cancelled while BasicCegarLoop was analyzing trace of length 250 with TraceHistMax 3, while AbsIntCurrentIteration was generating AI predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 15 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 257.8s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 92.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1616 SDtfs, 7378 SDslu, 2210 SDs, 0 SdLazy, 13875 SolverSat, 1710 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 80.3s Time, PredicateUnifierStatistics: 16 DeclaredPredicates, 1441 GetRequests, 1267 SyntacticMatches, 0 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 941 ImplicationChecksByTransitivity, 15.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2897occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 131.3s AbstIntTime, 9 AbstIntIterations, 9 AbstIntStrong, 0.9943335830384508 AbsIntWeakeningRatio, 0.12344139650872818 AbsIntAvgWeakeningVarsNumRemoved, 88.73877805486285 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 116 StatesRemovedByMinimization, 8 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/Problem10_label01_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-08_13-22-15-535.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label01_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-08_13-22-15-535.csv Completed graceful shutdown