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/Problem17_label22_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 11:08:52,036 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 11:08:52,038 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 11:08:52,053 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 11:08:52,054 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 11:08:52,055 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 11:08:52,056 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 11:08:52,059 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 11:08:52,061 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 11:08:52,063 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 11:08:52,064 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 11:08:52,064 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 11:08:52,067 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 11:08:52,070 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 11:08:52,071 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 11:08:52,072 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 11:08:52,072 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 11:08:52,081 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 11:08:52,086 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 11:08:52,088 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 11:08:52,092 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 11:08:52,093 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 11:08:52,095 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 11:08:52,095 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 11:08:52,096 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 11:08:52,099 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 11:08:52,100 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 11:08:52,101 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 11:08:52,101 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 11:08:52,102 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 11:08:52,102 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 11:08:52,103 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 11:08:52,103 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 11:08:52,103 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 11:08:52,104 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 11:08:52,105 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 11:08:52,105 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 [2018-09-19 11:08:52,128 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 11:08:52,128 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 11:08:52,129 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 11:08:52,129 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 11:08:52,130 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 11:08:52,130 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 11:08:52,130 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 11:08:52,130 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 11:08:52,131 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 11:08:52,131 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 11:08:52,131 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 11:08:52,131 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 11:08:52,131 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 11:08:52,132 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 11:08:52,132 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 11:08:52,132 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 11:08:52,132 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 11:08:52,133 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 11:08:52,133 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 11:08:52,133 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 11:08:52,133 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 11:08:52,133 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 11:08:52,134 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 11:08:52,134 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 11:08:52,134 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 11:08:52,138 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 11:08:52,138 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 11:08:52,138 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 11:08:52,138 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 11:08:52,138 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 11:08:52,139 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 11:08:52,139 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 11:08:52,139 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 11:08:52,139 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 11:08:52,139 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 11:08:52,196 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 11:08:52,213 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 11:08:52,220 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 11:08:52,222 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 11:08:52,223 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 11:08:52,223 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label22_true-unreach-call.c [2018-09-19 11:08:52,601 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/269305727/d1aa78e836a14a84ac2e6f2261c8f933/FLAG2f4f5b1a8 [2018-09-19 11:08:52,995 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 11:08:52,996 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label22_true-unreach-call.c [2018-09-19 11:08:53,021 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/269305727/d1aa78e836a14a84ac2e6f2261c8f933/FLAG2f4f5b1a8 [2018-09-19 11:08:53,039 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/269305727/d1aa78e836a14a84ac2e6f2261c8f933 [2018-09-19 11:08:53,052 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 11:08:53,055 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 11:08:53,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 11:08:53,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 11:08:53,064 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 11:08:53,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:08:53" (1/1) ... [2018-09-19 11:08:53,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@560f8b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:53, skipping insertion in model container [2018-09-19 11:08:53,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:08:53" (1/1) ... [2018-09-19 11:08:53,082 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 11:08:54,129 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:08:54,148 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 11:08:54,557 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:08:54,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:54 WrapperNode [2018-09-19 11:08:54,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 11:08:54,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 11:08:54,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 11:08:54,774 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 11:08:54,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:54" (1/1) ... [2018-09-19 11:08:54,879 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:54" (1/1) ... [2018-09-19 11:08:55,110 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 11:08:55,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 11:08:55,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 11:08:55,111 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 11:08:55,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:54" (1/1) ... [2018-09-19 11:08:55,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:54" (1/1) ... [2018-09-19 11:08:55,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:54" (1/1) ... [2018-09-19 11:08:55,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:54" (1/1) ... [2018-09-19 11:08:55,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:54" (1/1) ... [2018-09-19 11:08:55,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:54" (1/1) ... [2018-09-19 11:08:55,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:54" (1/1) ... [2018-09-19 11:08:56,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 11:08:56,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 11:08:56,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 11:08:56,030 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 11:08:56,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 11:08:56,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 11:08:56,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 11:08:56,112 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 11:08:56,112 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 11:08:56,113 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 11:08:56,114 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 11:08:56,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 11:08:56,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 11:08:56,115 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 11:08:56,116 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 11:09:10,003 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 11:09:10,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:09:10 BoogieIcfgContainer [2018-09-19 11:09:10,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 11:09:10,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 11:09:10,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 11:09:10,010 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 11:09:10,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 11:08:53" (1/3) ... [2018-09-19 11:09:10,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7ef7a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:09:10, skipping insertion in model container [2018-09-19 11:09:10,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:08:54" (2/3) ... [2018-09-19 11:09:10,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7ef7a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:09:10, skipping insertion in model container [2018-09-19 11:09:10,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:09:10" (3/3) ... [2018-09-19 11:09:10,014 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label22_true-unreach-call.c [2018-09-19 11:09:10,022 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 11:09:10,030 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 11:09:10,084 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 11:09:10,085 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 11:09:10,085 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 11:09:10,085 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 11:09:10,085 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 11:09:10,086 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 11:09:10,086 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 11:09:10,086 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 11:09:10,086 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 11:09:10,126 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-09-19 11:09:10,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-19 11:09:10,143 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:09:10,144 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] [2018-09-19 11:09:10,145 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:09:10,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1623542220, now seen corresponding path program 1 times [2018-09-19 11:09:10,154 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:09:10,155 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 59 with the following transitions: [2018-09-19 11:09:10,157 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1074], [1076], [2283], [2287], [2293], [2297], [2306], [2307], [2308], [2310] [2018-09-19 11:09:10,228 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:09:10,229 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:09:12,081 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:09:12,082 INFO L272 AbstractInterpreter]: Visited 57 different actions 57 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 11:09:12,103 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:09:12,860 INFO L232 lantSequenceWeakener]: Weakened 56 states. On average, predicates are now at 77.91% of their original sizes. [2018-09-19 11:09:12,860 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:09:13,162 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:09:13,164 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:09:13,164 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 11:09:13,164 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:09:13,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 11:09:13,177 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 11:09:13,178 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 11:09:13,181 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 6 states. [2018-09-19 11:09:26,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:09:26,492 INFO L93 Difference]: Finished difference Result 1642 states and 3016 transitions. [2018-09-19 11:09:26,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 11:09:26,494 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2018-09-19 11:09:26,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:09:26,520 INFO L225 Difference]: With dead ends: 1642 [2018-09-19 11:09:26,521 INFO L226 Difference]: Without dead ends: 1036 [2018-09-19 11:09:26,529 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 57 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 11:09:26,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2018-09-19 11:09:26,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1034. [2018-09-19 11:09:26,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2018-09-19 11:09:26,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1511 transitions. [2018-09-19 11:09:26,656 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1511 transitions. Word has length 58 [2018-09-19 11:09:26,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:09:26,657 INFO L480 AbstractCegarLoop]: Abstraction has 1034 states and 1511 transitions. [2018-09-19 11:09:26,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 11:09:26,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1511 transitions. [2018-09-19 11:09:26,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-09-19 11:09:26,664 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:09:26,665 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 11:09:26,665 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:09:26,665 INFO L82 PathProgramCache]: Analyzing trace with hash 429401034, now seen corresponding path program 1 times [2018-09-19 11:09:26,666 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:09:26,666 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 134 with the following transitions: [2018-09-19 11:09:26,667 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1074], [1076], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 11:09:26,673 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:09:26,674 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:09:28,736 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:09:33,833 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:09:33,834 INFO L272 AbstractInterpreter]: Visited 82 different actions 233 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 11:09:33,842 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:09:34,852 INFO L232 lantSequenceWeakener]: Weakened 131 states. On average, predicates are now at 76.31% of their original sizes. [2018-09-19 11:09:34,852 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:09:35,764 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:09:35,764 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:09:35,764 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 11:09:35,765 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:09:35,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 11:09:35,766 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 11:09:35,767 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 11:09:35,767 INFO L87 Difference]: Start difference. First operand 1034 states and 1511 transitions. Second operand 13 states. [2018-09-19 11:10:09,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:10:09,820 INFO L93 Difference]: Finished difference Result 2814 states and 4895 transitions. [2018-09-19 11:10:09,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 11:10:09,821 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 133 [2018-09-19 11:10:09,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:10:09,835 INFO L225 Difference]: With dead ends: 2814 [2018-09-19 11:10:09,835 INFO L226 Difference]: Without dead ends: 2220 [2018-09-19 11:10:09,840 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 146 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=157, Invalid=545, Unknown=0, NotChecked=0, Total=702 [2018-09-19 11:10:09,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2018-09-19 11:10:09,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 1497. [2018-09-19 11:10:09,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1497 states. [2018-09-19 11:10:09,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 2009 transitions. [2018-09-19 11:10:09,899 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 2009 transitions. Word has length 133 [2018-09-19 11:10:09,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:10:09,900 INFO L480 AbstractCegarLoop]: Abstraction has 1497 states and 2009 transitions. [2018-09-19 11:10:09,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 11:10:09,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 2009 transitions. [2018-09-19 11:10:09,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-09-19 11:10:09,905 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:10:09,905 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 11:10:09,905 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:10:09,906 INFO L82 PathProgramCache]: Analyzing trace with hash -499815646, now seen corresponding path program 1 times [2018-09-19 11:10:09,906 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:10:09,906 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 147 with the following transitions: [2018-09-19 11:10:09,907 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1074], [1076], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 11:10:09,912 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:10:09,912 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:10:12,508 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:10:18,595 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:10:18,595 INFO L272 AbstractInterpreter]: Visited 95 different actions 272 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 11:10:18,618 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:10:19,711 INFO L232 lantSequenceWeakener]: Weakened 144 states. On average, predicates are now at 76.19% of their original sizes. [2018-09-19 11:10:19,711 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:10:20,269 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:10:20,270 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:10:20,270 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 11:10:20,270 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:10:20,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 11:10:20,271 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 11:10:20,271 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 11:10:20,271 INFO L87 Difference]: Start difference. First operand 1497 states and 2009 transitions. Second operand 11 states. [2018-09-19 11:10:58,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:10:58,716 INFO L93 Difference]: Finished difference Result 2646 states and 4140 transitions. [2018-09-19 11:10:58,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 11:10:58,726 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 146 [2018-09-19 11:10:58,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:10:58,738 INFO L225 Difference]: With dead ends: 2646 [2018-09-19 11:10:58,739 INFO L226 Difference]: Without dead ends: 2052 [2018-09-19 11:10:58,741 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 154 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-19 11:10:58,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2052 states. [2018-09-19 11:10:58,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2052 to 1962. [2018-09-19 11:10:58,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2018-09-19 11:10:58,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2620 transitions. [2018-09-19 11:10:58,800 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2620 transitions. Word has length 146 [2018-09-19 11:10:58,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:10:58,801 INFO L480 AbstractCegarLoop]: Abstraction has 1962 states and 2620 transitions. [2018-09-19 11:10:58,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 11:10:58,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2620 transitions. [2018-09-19 11:10:58,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-09-19 11:10:58,807 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:10:58,807 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, 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] [2018-09-19 11:10:58,807 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:10:58,808 INFO L82 PathProgramCache]: Analyzing trace with hash -956217672, now seen corresponding path program 1 times [2018-09-19 11:10:58,808 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:10:58,808 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 222 with the following transitions: [2018-09-19 11:10:58,808 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1074], [1076], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 11:10:58,813 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:10:58,813 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:11:00,486 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:11:14,743 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:11:14,743 INFO L272 AbstractInterpreter]: Visited 96 different actions 558 times. Merged at 7 different actions 37 times. Widened at 1 different actions 1 times. Found 7 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 11:11:14,753 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:11:16,195 INFO L232 lantSequenceWeakener]: Weakened 219 states. On average, predicates are now at 75.82% of their original sizes. [2018-09-19 11:11:16,195 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:11:16,675 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:11:16,675 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:11:16,675 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 11:11:16,675 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:11:16,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 11:11:16,676 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 11:11:16,677 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 11:11:16,677 INFO L87 Difference]: Start difference. First operand 1962 states and 2620 transitions. Second operand 12 states. [2018-09-19 11:11:48,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:11:48,783 INFO L93 Difference]: Finished difference Result 3982 states and 6007 transitions. [2018-09-19 11:11:48,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 11:11:48,795 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 221 [2018-09-19 11:11:48,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:11:48,814 INFO L225 Difference]: With dead ends: 3982 [2018-09-19 11:11:48,814 INFO L226 Difference]: Without dead ends: 3388 [2018-09-19 11:11:48,818 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 230 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2018-09-19 11:11:48,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3388 states. [2018-09-19 11:11:48,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3388 to 2433. [2018-09-19 11:11:48,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2433 states. [2018-09-19 11:11:48,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2433 states to 2433 states and 3279 transitions. [2018-09-19 11:11:48,909 INFO L78 Accepts]: Start accepts. Automaton has 2433 states and 3279 transitions. Word has length 221 [2018-09-19 11:11:48,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:11:48,910 INFO L480 AbstractCegarLoop]: Abstraction has 2433 states and 3279 transitions. [2018-09-19 11:11:48,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 11:11:48,910 INFO L276 IsEmpty]: Start isEmpty. Operand 2433 states and 3279 transitions. [2018-09-19 11:11:48,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2018-09-19 11:11:48,915 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:11:48,915 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, 2, 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] [2018-09-19 11:11:48,915 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:11:48,917 INFO L82 PathProgramCache]: Analyzing trace with hash -217792344, now seen corresponding path program 1 times [2018-09-19 11:11:48,917 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:11:48,917 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 223 with the following transitions: [2018-09-19 11:11:48,918 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1074], [1076], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1227], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 11:11:48,929 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:11:48,929 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:11:50,887 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:12:05,307 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:12:05,308 INFO L272 AbstractInterpreter]: Visited 96 different actions 461 times. Merged at 7 different actions 25 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 11:12:05,317 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:12:06,648 INFO L232 lantSequenceWeakener]: Weakened 220 states. On average, predicates are now at 75.82% of their original sizes. [2018-09-19 11:12:06,648 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:12:07,008 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:12:07,009 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:12:07,009 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 11:12:07,009 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:12:07,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 11:12:07,010 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 11:12:07,010 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 11:12:07,010 INFO L87 Difference]: Start difference. First operand 2433 states and 3279 transitions. Second operand 11 states. [2018-09-19 11:12:47,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:12:47,070 INFO L93 Difference]: Finished difference Result 4146 states and 6156 transitions. [2018-09-19 11:12:47,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 11:12:47,071 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 222 [2018-09-19 11:12:47,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:12:47,086 INFO L225 Difference]: With dead ends: 4146 [2018-09-19 11:12:47,087 INFO L226 Difference]: Without dead ends: 3552 [2018-09-19 11:12:47,090 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 230 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-19 11:12:47,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3552 states. [2018-09-19 11:12:47,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3552 to 3371. [2018-09-19 11:12:47,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3371 states. [2018-09-19 11:12:47,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3371 states to 3371 states and 4576 transitions. [2018-09-19 11:12:47,192 INFO L78 Accepts]: Start accepts. Automaton has 3371 states and 4576 transitions. Word has length 222 [2018-09-19 11:12:47,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:12:47,193 INFO L480 AbstractCegarLoop]: Abstraction has 3371 states and 4576 transitions. [2018-09-19 11:12:47,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 11:12:47,193 INFO L276 IsEmpty]: Start isEmpty. Operand 3371 states and 4576 transitions. [2018-09-19 11:12:47,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-09-19 11:12:47,198 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:12:47,198 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, 2, 2, 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] [2018-09-19 11:12:47,198 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:12:47,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1893811432, now seen corresponding path program 1 times [2018-09-19 11:12:47,199 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:12:47,199 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 224 with the following transitions: [2018-09-19 11:12:47,200 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1074], [1076], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1231], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 11:12:47,203 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:12:47,203 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:12:49,320 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:12:57,025 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:12:57,025 INFO L272 AbstractInterpreter]: Visited 96 different actions 371 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 11:12:57,062 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:12:58,594 INFO L232 lantSequenceWeakener]: Weakened 221 states. On average, predicates are now at 75.81% of their original sizes. [2018-09-19 11:12:58,595 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:12:59,680 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:12:59,680 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:12:59,680 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 11:12:59,681 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:12:59,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 11:12:59,681 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 11:12:59,681 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 11:12:59,682 INFO L87 Difference]: Start difference. First operand 3371 states and 4576 transitions. Second operand 11 states. Received shutdown request... [2018-09-19 11:13:02,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-19 11:13:02,986 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 11:13:02,992 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 11:13:02,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 11:13:02 BoogieIcfgContainer [2018-09-19 11:13:02,993 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 11:13:02,994 INFO L168 Benchmark]: Toolchain (without parser) took 249941.37 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 3.4 GB in the end (delta: -2.0 GB). Peak memory consumption was 717.0 MB. Max. memory is 7.1 GB. [2018-09-19 11:13:02,998 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 11:13:02,999 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1716.14 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 182.3 MB). Peak memory consumption was 182.3 MB. Max. memory is 7.1 GB. [2018-09-19 11:13:03,001 INFO L168 Benchmark]: Boogie Procedure Inliner took 336.71 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-09-19 11:13:03,001 INFO L168 Benchmark]: Boogie Preprocessor took 918.24 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 912.8 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 123.6 MB. Max. memory is 7.1 GB. [2018-09-19 11:13:03,002 INFO L168 Benchmark]: RCFGBuilder took 13975.68 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 457.5 MB). Peak memory consumption was 457.5 MB. Max. memory is 7.1 GB. [2018-09-19 11:13:03,005 INFO L168 Benchmark]: TraceAbstraction took 232987.29 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.8 GB in the beginning and 3.4 GB in the end (delta: -1.6 GB). Peak memory consumption was 246.6 MB. Max. memory is 7.1 GB. [2018-09-19 11:13:03,012 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 1716.14 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 182.3 MB). Peak memory consumption was 182.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 336.71 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 918.24 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 912.8 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 123.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13975.68 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 457.5 MB). Peak memory consumption was 457.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 232987.29 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.8 GB in the beginning and 3.4 GB in the end (delta: -1.6 GB). Peak memory consumption was 246.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 161]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 161). Cancelled while BasicCegarLoop was constructing difference of abstraction (3371states) and FLOYD_HOARE automaton (currently 7 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (58 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 232.9s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 161.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2775 SDtfs, 12924 SDslu, 3285 SDs, 0 SdLazy, 31634 SolverSat, 2802 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 148.1s Time, PredicateUnifierStatistics: 12 DeclaredPredicates, 1043 GetRequests, 945 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3371occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 60.0s AbstIntTime, 6 AbstIntIterations, 6 AbstIntStrong, 0.9941608157806754 AbsIntWeakeningRatio, 0.13841524573721165 AbsIntAvgWeakeningVarsNumRemoved, 1055.2276830491473 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 1951 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label22_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_11-13-03-034.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label22_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_11-13-03-034.csv Completed graceful shutdown