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_label10_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 11:07:46,190 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 11:07:46,192 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 11:07:46,204 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 11:07:46,204 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 11:07:46,205 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 11:07:46,206 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 11:07:46,208 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 11:07:46,210 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 11:07:46,210 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 11:07:46,211 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 11:07:46,212 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 11:07:46,212 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 11:07:46,213 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 11:07:46,214 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 11:07:46,215 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 11:07:46,216 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 11:07:46,218 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 11:07:46,220 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 11:07:46,221 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 11:07:46,222 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 11:07:46,223 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 11:07:46,226 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 11:07:46,226 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 11:07:46,226 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 11:07:46,227 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 11:07:46,228 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 11:07:46,229 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 11:07:46,230 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 11:07:46,234 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 11:07:46,234 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 11:07:46,235 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 11:07:46,235 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 11:07:46,235 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 11:07:46,236 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 11:07:46,237 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 11:07:46,237 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 11:07:46,258 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 11:07:46,258 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 11:07:46,259 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 11:07:46,259 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 11:07:46,259 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 11:07:46,259 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 11:07:46,260 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 11:07:46,260 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 11:07:46,260 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 11:07:46,260 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 11:07:46,260 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 11:07:46,261 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 11:07:46,261 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 11:07:46,261 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 11:07:46,262 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 11:07:46,262 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 11:07:46,262 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 11:07:46,262 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 11:07:46,262 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 11:07:46,263 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 11:07:46,263 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 11:07:46,263 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 11:07:46,263 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 11:07:46,263 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 11:07:46,264 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 11:07:46,264 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 11:07:46,264 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 11:07:46,264 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 11:07:46,264 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 11:07:46,265 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 11:07:46,265 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 11:07:46,265 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 11:07:46,265 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 11:07:46,265 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 11:07:46,266 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 11:07:46,322 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 11:07:46,335 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 11:07:46,341 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 11:07:46,343 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 11:07:46,343 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 11:07:46,344 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label10_true-unreach-call.c [2018-09-19 11:07:46,687 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d59eed1fa/cc9585dea2ee48869fc1ef3f1d18b618/FLAGfacb5763d [2018-09-19 11:07:47,085 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 11:07:47,086 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label10_true-unreach-call.c [2018-09-19 11:07:47,118 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d59eed1fa/cc9585dea2ee48869fc1ef3f1d18b618/FLAGfacb5763d [2018-09-19 11:07:47,141 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d59eed1fa/cc9585dea2ee48869fc1ef3f1d18b618 [2018-09-19 11:07:47,154 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 11:07:47,158 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 11:07:47,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 11:07:47,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 11:07:47,170 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 11:07:47,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:07:47" (1/1) ... [2018-09-19 11:07:47,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43a96985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:47, skipping insertion in model container [2018-09-19 11:07:47,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:07:47" (1/1) ... [2018-09-19 11:07:47,189 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 11:07:48,224 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:07:48,242 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 11:07:48,593 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:07:48,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:48 WrapperNode [2018-09-19 11:07:48,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 11:07:48,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 11:07:48,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 11:07:48,802 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 11:07:48,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:48" (1/1) ... [2018-09-19 11:07:48,892 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:48" (1/1) ... [2018-09-19 11:07:49,090 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 11:07:49,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 11:07:49,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 11:07:49,091 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 11:07:49,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:48" (1/1) ... [2018-09-19 11:07:49,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:48" (1/1) ... [2018-09-19 11:07:49,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:48" (1/1) ... [2018-09-19 11:07:49,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:48" (1/1) ... [2018-09-19 11:07:49,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:48" (1/1) ... [2018-09-19 11:07:49,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:48" (1/1) ... [2018-09-19 11:07:49,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:48" (1/1) ... [2018-09-19 11:07:49,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 11:07:49,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 11:07:49,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 11:07:49,934 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 11:07:49,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:48" (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 11:07:50,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 11:07:50,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 11:07:50,006 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 11:07:50,007 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 11:07:50,007 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 11:07:50,007 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 11:07:50,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 11:07:50,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 11:07:50,007 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 11:07:50,008 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 11:08:00,845 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 11:08:00,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:08:00 BoogieIcfgContainer [2018-09-19 11:08:00,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 11:08:00,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 11:08:00,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 11:08:00,851 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 11:08:00,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 11:07:47" (1/3) ... [2018-09-19 11:08:00,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bbe4205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:08:00, skipping insertion in model container [2018-09-19 11:08:00,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:07:48" (2/3) ... [2018-09-19 11:08:00,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bbe4205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:08:00, skipping insertion in model container [2018-09-19 11:08:00,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:08:00" (3/3) ... [2018-09-19 11:08:00,855 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label10_true-unreach-call.c [2018-09-19 11:08:00,865 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 11:08:00,874 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 11:08:00,930 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 11:08:00,931 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 11:08:00,931 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 11:08:00,931 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 11:08:00,931 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 11:08:00,931 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 11:08:00,932 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 11:08:00,932 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 11:08:00,932 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 11:08:00,972 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-09-19 11:08:00,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-19 11:08:00,982 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:08:00,986 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] [2018-09-19 11:08:00,987 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:08:00,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1853097852, now seen corresponding path program 1 times [2018-09-19 11:08:00,995 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:08:00,996 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 47 with the following transitions: [2018-09-19 11:08:00,999 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], [978], [980], [2283], [2287], [2293], [2297], [2306], [2307], [2308], [2310] [2018-09-19 11:08:01,068 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:08:01,069 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:08:02,525 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:08:02,527 INFO L272 AbstractInterpreter]: Visited 45 different actions 45 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 11:08:02,551 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:08:03,162 INFO L232 lantSequenceWeakener]: Weakened 44 states. On average, predicates are now at 77.57% of their original sizes. [2018-09-19 11:08:03,162 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:08:03,473 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:08:03,474 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:08:03,475 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 11:08:03,475 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:08:03,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 11:08:03,488 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 11:08:03,489 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 11:08:03,491 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 6 states. [2018-09-19 11:08:23,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:08:23,038 INFO L93 Difference]: Finished difference Result 1642 states and 3016 transitions. [2018-09-19 11:08:23,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 11:08:23,041 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2018-09-19 11:08:23,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:08:23,066 INFO L225 Difference]: With dead ends: 1642 [2018-09-19 11:08:23,066 INFO L226 Difference]: Without dead ends: 1036 [2018-09-19 11:08:23,077 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 45 GetRequests, 41 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 11:08:23,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2018-09-19 11:08:23,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1034. [2018-09-19 11:08:23,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2018-09-19 11:08:23,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1511 transitions. [2018-09-19 11:08:23,198 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1511 transitions. Word has length 46 [2018-09-19 11:08:23,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:08:23,199 INFO L480 AbstractCegarLoop]: Abstraction has 1034 states and 1511 transitions. [2018-09-19 11:08:23,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 11:08:23,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1511 transitions. [2018-09-19 11:08:23,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-09-19 11:08:23,211 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:08:23,212 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:23,212 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:08:23,213 INFO L82 PathProgramCache]: Analyzing trace with hash -180836774, now seen corresponding path program 1 times [2018-09-19 11:08:23,213 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:08:23,214 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 122 with the following transitions: [2018-09-19 11:08:23,214 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], [978], [980], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [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 11:08:23,225 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:08:23,225 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:08:25,288 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:08:30,572 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:08:30,572 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 11:08:30,580 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:08:31,731 INFO L232 lantSequenceWeakener]: Weakened 119 states. On average, predicates are now at 76.02% of their original sizes. [2018-09-19 11:08:31,731 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:08:33,236 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:08:33,236 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:08:33,237 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 11:08:33,237 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:08:33,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 11:08:33,238 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 11:08:33,239 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 11:08:33,239 INFO L87 Difference]: Start difference. First operand 1034 states and 1511 transitions. Second operand 13 states. [2018-09-19 11:09:10,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:09:10,988 INFO L93 Difference]: Finished difference Result 2814 states and 4895 transitions. [2018-09-19 11:09:10,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 11:09:10,989 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 121 [2018-09-19 11:09:10,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:09:11,004 INFO L225 Difference]: With dead ends: 2814 [2018-09-19 11:09:11,004 INFO L226 Difference]: Without dead ends: 2220 [2018-09-19 11:09:11,009 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 134 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=157, Invalid=545, Unknown=0, NotChecked=0, Total=702 [2018-09-19 11:09:11,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2018-09-19 11:09:11,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 1497. [2018-09-19 11:09:11,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1497 states. [2018-09-19 11:09:11,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 2009 transitions. [2018-09-19 11:09:11,070 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 2009 transitions. Word has length 121 [2018-09-19 11:09:11,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:09:11,071 INFO L480 AbstractCegarLoop]: Abstraction has 1497 states and 2009 transitions. [2018-09-19 11:09:11,071 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 11:09:11,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 2009 transitions. [2018-09-19 11:09:11,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-09-19 11:09:11,078 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:09:11,078 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:09:11,078 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:09:11,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1646863566, now seen corresponding path program 1 times [2018-09-19 11:09:11,079 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:09:11,079 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-09-19 11:09:11,080 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], [978], [980], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [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 11:09:11,084 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:09:11,085 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:09:13,590 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:09:18,902 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:09:18,903 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 11:09:18,939 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:09:20,004 INFO L232 lantSequenceWeakener]: Weakened 132 states. On average, predicates are now at 75.92% of their original sizes. [2018-09-19 11:09:20,005 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:09:20,620 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:09:20,620 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:09:20,620 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 11:09:20,621 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:09:20,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 11:09:20,621 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 11:09:20,626 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 11:09:20,626 INFO L87 Difference]: Start difference. First operand 1497 states and 2009 transitions. Second operand 11 states. [2018-09-19 11:09:57,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:09:57,803 INFO L93 Difference]: Finished difference Result 2646 states and 4140 transitions. [2018-09-19 11:09:57,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 11:09:57,805 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 134 [2018-09-19 11:09:57,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:09:57,815 INFO L225 Difference]: With dead ends: 2646 [2018-09-19 11:09:57,816 INFO L226 Difference]: Without dead ends: 2052 [2018-09-19 11:09:57,818 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 142 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-19 11:09:57,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2052 states. [2018-09-19 11:09:57,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2052 to 1962. [2018-09-19 11:09:57,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2018-09-19 11:09:57,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2620 transitions. [2018-09-19 11:09:57,876 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2620 transitions. Word has length 134 [2018-09-19 11:09:57,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:09:57,877 INFO L480 AbstractCegarLoop]: Abstraction has 1962 states and 2620 transitions. [2018-09-19 11:09:57,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 11:09:57,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2620 transitions. [2018-09-19 11:09:57,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-09-19 11:09:57,890 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:09:57,891 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 11:09:57,891 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:09:57,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1780692744, now seen corresponding path program 1 times [2018-09-19 11:09:57,892 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:09:57,893 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 210 with the following transitions: [2018-09-19 11:09:57,893 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], [978], [980], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [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 11:09:57,899 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:09:57,899 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:09:59,651 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:10:13,834 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:10:13,834 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 11:10:13,844 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:10:14,946 INFO L232 lantSequenceWeakener]: Weakened 207 states. On average, predicates are now at 75.63% of their original sizes. [2018-09-19 11:10:14,947 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:10:15,370 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:10:15,371 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:10:15,371 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 11:10:15,371 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:10:15,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 11:10:15,372 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 11:10:15,372 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 11:10:15,372 INFO L87 Difference]: Start difference. First operand 1962 states and 2620 transitions. Second operand 12 states. [2018-09-19 11:10:48,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:10:48,345 INFO L93 Difference]: Finished difference Result 3982 states and 6007 transitions. [2018-09-19 11:10:48,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 11:10:48,354 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 209 [2018-09-19 11:10:48,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:10:48,373 INFO L225 Difference]: With dead ends: 3982 [2018-09-19 11:10:48,373 INFO L226 Difference]: Without dead ends: 3388 [2018-09-19 11:10:48,378 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 218 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2018-09-19 11:10:48,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3388 states. [2018-09-19 11:10:48,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3388 to 2433. [2018-09-19 11:10:48,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2433 states. [2018-09-19 11:10:48,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2433 states to 2433 states and 3279 transitions. [2018-09-19 11:10:48,468 INFO L78 Accepts]: Start accepts. Automaton has 2433 states and 3279 transitions. Word has length 209 [2018-09-19 11:10:48,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:10:48,469 INFO L480 AbstractCegarLoop]: Abstraction has 2433 states and 3279 transitions. [2018-09-19 11:10:48,469 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 11:10:48,469 INFO L276 IsEmpty]: Start isEmpty. Operand 2433 states and 3279 transitions. [2018-09-19 11:10:48,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-09-19 11:10:48,473 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:10:48,473 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 11:10:48,473 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:10:48,474 INFO L82 PathProgramCache]: Analyzing trace with hash 448430712, now seen corresponding path program 1 times [2018-09-19 11:10:48,474 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:10:48,474 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 211 with the following transitions: [2018-09-19 11:10:48,474 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], [978], [980], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [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 11:10:48,479 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:10:48,480 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:10:50,475 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:11:04,523 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:11:04,523 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 11:11:04,529 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:11:05,809 INFO L232 lantSequenceWeakener]: Weakened 208 states. On average, predicates are now at 75.62% of their original sizes. [2018-09-19 11:11:05,809 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:11:06,154 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:11:06,154 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:11:06,154 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 11:11:06,155 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:11:06,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 11:11:06,155 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 11:11:06,155 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 11:11:06,156 INFO L87 Difference]: Start difference. First operand 2433 states and 3279 transitions. Second operand 11 states. [2018-09-19 11:11:38,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:11:38,187 INFO L93 Difference]: Finished difference Result 4146 states and 6156 transitions. [2018-09-19 11:11:38,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 11:11:38,188 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 210 [2018-09-19 11:11:38,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:11:38,204 INFO L225 Difference]: With dead ends: 4146 [2018-09-19 11:11:38,204 INFO L226 Difference]: Without dead ends: 3552 [2018-09-19 11:11:38,208 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 218 GetRequests, 200 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 11:11:38,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3552 states. [2018-09-19 11:11:38,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3552 to 3371. [2018-09-19 11:11:38,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3371 states. [2018-09-19 11:11:38,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3371 states to 3371 states and 4576 transitions. [2018-09-19 11:11:38,306 INFO L78 Accepts]: Start accepts. Automaton has 3371 states and 4576 transitions. Word has length 210 [2018-09-19 11:11:38,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:11:38,307 INFO L480 AbstractCegarLoop]: Abstraction has 3371 states and 4576 transitions. [2018-09-19 11:11:38,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 11:11:38,307 INFO L276 IsEmpty]: Start isEmpty. Operand 3371 states and 4576 transitions. [2018-09-19 11:11:38,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-09-19 11:11:38,312 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:11:38,312 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 11:11:38,312 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:11:38,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1003745768, now seen corresponding path program 1 times [2018-09-19 11:11:38,313 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:11:38,313 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 212 with the following transitions: [2018-09-19 11:11:38,314 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], [978], [980], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [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 11:11:38,317 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:11:38,318 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:11:40,125 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:11:47,407 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:11:47,407 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 11:11:47,416 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:11:48,404 INFO L232 lantSequenceWeakener]: Weakened 209 states. On average, predicates are now at 75.62% of their original sizes. [2018-09-19 11:11:48,404 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:11:48,746 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:11:48,746 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:11:48,747 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 11:11:48,747 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:11:48,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 11:11:48,747 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 11:11:48,748 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 11:11:48,748 INFO L87 Difference]: Start difference. First operand 3371 states and 4576 transitions. Second operand 11 states. Received shutdown request... [2018-09-19 11:12:05,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 11:12:05,590 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 11:12:05,596 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 11:12:05,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 11:12:05 BoogieIcfgContainer [2018-09-19 11:12:05,596 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 11:12:05,597 INFO L168 Benchmark]: Toolchain (without parser) took 258443.15 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.8 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 941.0 MB. Max. memory is 7.1 GB. [2018-09-19 11:12:05,599 INFO L168 Benchmark]: CDTParser took 0.22 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 11:12:05,600 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1640.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. [2018-09-19 11:12:05,601 INFO L168 Benchmark]: Boogie Procedure Inliner took 289.47 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.8 MB). Peak memory consumption was 42.8 MB. Max. memory is 7.1 GB. [2018-09-19 11:12:05,602 INFO L168 Benchmark]: Boogie Preprocessor took 842.09 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 947.4 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.5 MB. Max. memory is 7.1 GB. [2018-09-19 11:12:05,603 INFO L168 Benchmark]: RCFGBuilder took 10912.72 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 451.3 MB). Peak memory consumption was 451.3 MB. Max. memory is 7.1 GB. [2018-09-19 11:12:05,604 INFO L168 Benchmark]: TraceAbstraction took 244749.50 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 3.2 GB in the end (delta: -1.3 GB). Peak memory consumption was 480.2 MB. Max. memory is 7.1 GB. [2018-09-19 11:12:05,609 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 1640.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 289.47 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 42.8 MB). Peak memory consumption was 42.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 842.09 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 947.4 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10912.72 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 451.3 MB). Peak memory consumption was 451.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 244749.50 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 3.2 GB in the end (delta: -1.3 GB). Peak memory consumption was 480.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 125]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 125). Cancelled while BasicCegarLoop was constructing difference of abstraction (3371states) and FLOYD_HOARE automaton (currently 15 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (2186 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 244.6s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 176.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3012 SDtfs, 14935 SDslu, 3728 SDs, 0 SdLazy, 34479 SolverSat, 2926 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 161.9s Time, PredicateUnifierStatistics: 12 DeclaredPredicates, 976 GetRequests, 873 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 5.8s 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, 57.8s AbstIntTime, 6 AbstIntIterations, 6 AbstIntStrong, 0.9937063063063064 AbsIntWeakeningRatio, 0.1491891891891892 AbsIntAvgWeakeningVarsNumRemoved, 1051.587027027027 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_label10_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_11-12-05-624.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label10_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_11-12-05-624.csv Completed graceful shutdown