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/Problem12_label54_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 19:50:39,113 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 19:50:39,117 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 19:50:39,132 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 19:50:39,132 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 19:50:39,133 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 19:50:39,134 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 19:50:39,136 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 19:50:39,140 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 19:50:39,141 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 19:50:39,142 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 19:50:39,142 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 19:50:39,146 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 19:50:39,147 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 19:50:39,152 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 19:50:39,153 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 19:50:39,154 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 19:50:39,157 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 19:50:39,161 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 19:50:39,164 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 19:50:39,166 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 19:50:39,167 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 19:50:39,175 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 19:50:39,175 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 19:50:39,175 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 19:50:39,176 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 19:50:39,177 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 19:50:39,179 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 19:50:39,180 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 19:50:39,182 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 19:50:39,182 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 19:50:39,183 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 19:50:39,185 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 19:50:39,185 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 19:50:39,186 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 19:50:39,188 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 19:50:39,188 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 [2018-09-15 19:50:39,214 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 19:50:39,215 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 19:50:39,215 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 19:50:39,216 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 19:50:39,216 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 19:50:39,216 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 19:50:39,216 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 19:50:39,216 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 19:50:39,217 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-15 19:50:39,217 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 19:50:39,217 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 19:50:39,217 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 19:50:39,220 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 19:50:39,221 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 19:50:39,221 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 19:50:39,221 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 19:50:39,222 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 19:50:39,222 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 19:50:39,222 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 19:50:39,223 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 19:50:39,223 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 19:50:39,223 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 19:50:39,223 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 19:50:39,224 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 19:50:39,224 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 19:50:39,224 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 19:50:39,224 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 19:50:39,225 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 19:50:39,225 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 19:50:39,225 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 19:50:39,225 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 19:50:39,226 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 19:50:39,226 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 19:50:39,226 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 19:50:39,282 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 19:50:39,299 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 19:50:39,306 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 19:50:39,308 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 19:50:39,308 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 19:50:39,309 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label54_true-unreach-call.c [2018-09-15 19:50:39,664 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9b1ce6dc/533936d7f4ed495eaf950edc0d7c6a9a/FLAG9acf6d98b [2018-09-15 19:50:40,158 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 19:50:40,160 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label54_true-unreach-call.c [2018-09-15 19:50:40,198 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9b1ce6dc/533936d7f4ed495eaf950edc0d7c6a9a/FLAG9acf6d98b [2018-09-15 19:50:40,221 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9b1ce6dc/533936d7f4ed495eaf950edc0d7c6a9a [2018-09-15 19:50:40,236 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 19:50:40,242 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 19:50:40,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 19:50:40,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 19:50:40,252 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 19:50:40,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 07:50:40" (1/1) ... [2018-09-15 19:50:40,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56ecc5dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:50:40, skipping insertion in model container [2018-09-15 19:50:40,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 07:50:40" (1/1) ... [2018-09-15 19:50:40,272 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 19:50:41,663 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 19:50:41,683 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 19:50:42,224 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 19:50:42,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:50:42 WrapperNode [2018-09-15 19:50:42,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 19:50:42,516 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 19:50:42,516 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 19:50:42,516 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 19:50:42,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:50:42" (1/1) ... [2018-09-15 19:50:42,624 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:50:42" (1/1) ... [2018-09-15 19:50:43,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 19:50:43,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 19:50:43,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 19:50:43,459 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 19:50:43,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:50:42" (1/1) ... [2018-09-15 19:50:43,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:50:42" (1/1) ... [2018-09-15 19:50:43,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:50:42" (1/1) ... [2018-09-15 19:50:43,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:50:42" (1/1) ... [2018-09-15 19:50:43,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:50:42" (1/1) ... [2018-09-15 19:50:43,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:50:42" (1/1) ... [2018-09-15 19:50:43,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:50:42" (1/1) ... [2018-09-15 19:50:43,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 19:50:43,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 19:50:43,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 19:50:43,763 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 19:50:43,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:50:42" (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 [2018-09-15 19:50:43,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 19:50:43,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 19:50:43,844 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-15 19:50:43,844 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-15 19:50:43,844 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-15 19:50:43,844 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-15 19:50:43,844 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 19:50:43,845 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 19:50:43,845 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 19:50:43,845 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 19:50:43,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 19:50:43,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 19:50:43,846 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 19:50:43,846 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 19:50:54,040 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 19:50:54,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 07:50:54 BoogieIcfgContainer [2018-09-15 19:50:54,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 19:50:54,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 19:50:54,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 19:50:54,046 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 19:50:54,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 07:50:40" (1/3) ... [2018-09-15 19:50:54,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3623a087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 07:50:54, skipping insertion in model container [2018-09-15 19:50:54,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:50:42" (2/3) ... [2018-09-15 19:50:54,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3623a087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 07:50:54, skipping insertion in model container [2018-09-15 19:50:54,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 07:50:54" (3/3) ... [2018-09-15 19:50:54,050 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label54_true-unreach-call.c [2018-09-15 19:50:54,061 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 19:50:54,072 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 19:50:54,135 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 19:50:54,136 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 19:50:54,136 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 19:50:54,136 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 19:50:54,136 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 19:50:54,136 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 19:50:54,137 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 19:50:54,137 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 19:50:54,137 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 19:50:54,177 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-15 19:50:54,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-15 19:50:54,185 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 19:50:54,186 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] [2018-09-15 19:50:54,187 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 19:50:54,193 INFO L82 PathProgramCache]: Analyzing trace with hash 2139876300, now seen corresponding path program 1 times [2018-09-15 19:50:54,195 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 19:50:54,196 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 41 with the following transitions: [2018-09-15 19:50:54,199 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2087], [2089], [3244], [3248], [3254], [3258], [3271], [3272], [3273], [3275] [2018-09-15 19:50:54,261 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 19:50:54,261 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 19:50:56,320 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 19:50:56,322 INFO L272 AbstractInterpreter]: Visited 39 different actions 39 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-15 19:50:56,345 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 19:50:57,168 INFO L232 lantSequenceWeakener]: Weakened 38 states. On average, predicates are now at 77.32% of their original sizes. [2018-09-15 19:50:57,169 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 19:50:57,480 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 19:50:57,482 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 19:50:57,483 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 19:50:57,483 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 19:50:57,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 19:50:57,496 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 19:50:57,497 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 19:50:57,499 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 6 states. [2018-09-15 19:51:22,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 19:51:22,005 INFO L93 Difference]: Finished difference Result 2448 states and 4699 transitions. [2018-09-15 19:51:22,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 19:51:22,008 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2018-09-15 19:51:22,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 19:51:22,038 INFO L225 Difference]: With dead ends: 2448 [2018-09-15 19:51:22,039 INFO L226 Difference]: Without dead ends: 1606 [2018-09-15 19:51:22,051 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 19:51:22,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2018-09-15 19:51:22,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1604. [2018-09-15 19:51:22,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-09-15 19:51:22,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2357 transitions. [2018-09-15 19:51:22,218 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2357 transitions. Word has length 40 [2018-09-15 19:51:22,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 19:51:22,219 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2357 transitions. [2018-09-15 19:51:22,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 19:51:22,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2357 transitions. [2018-09-15 19:51:22,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-09-15 19:51:22,225 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 19:51:22,225 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 19:51:22,225 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 19:51:22,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1781827310, now seen corresponding path program 1 times [2018-09-15 19:51:22,226 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 19:51:22,226 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 117 with the following transitions: [2018-09-15 19:51:22,227 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2087], [2089], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-15 19:51:22,234 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 19:51:22,234 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 19:51:31,432 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 19:51:31,432 INFO L272 AbstractInterpreter]: Visited 83 different actions 159 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 19:51:31,440 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 19:51:33,107 INFO L232 lantSequenceWeakener]: Weakened 114 states. On average, predicates are now at 75.85% of their original sizes. [2018-09-15 19:51:33,108 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 19:51:34,348 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 19:51:34,348 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 19:51:34,348 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 19:51:34,348 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 19:51:34,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 19:51:34,350 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 19:51:34,350 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-15 19:51:34,350 INFO L87 Difference]: Start difference. First operand 1604 states and 2357 transitions. Second operand 12 states. [2018-09-15 19:52:24,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 19:52:24,663 INFO L93 Difference]: Finished difference Result 3738 states and 6520 transitions. [2018-09-15 19:52:24,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-15 19:52:24,664 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 116 [2018-09-15 19:52:24,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 19:52:24,677 INFO L225 Difference]: With dead ends: 3738 [2018-09-15 19:52:24,678 INFO L226 Difference]: Without dead ends: 2908 [2018-09-15 19:52:24,682 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 124 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2018-09-15 19:52:24,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2018-09-15 19:52:24,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 2406. [2018-09-15 19:52:24,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2406 states. [2018-09-15 19:52:24,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2406 states to 2406 states and 3172 transitions. [2018-09-15 19:52:24,764 INFO L78 Accepts]: Start accepts. Automaton has 2406 states and 3172 transitions. Word has length 116 [2018-09-15 19:52:24,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 19:52:24,765 INFO L480 AbstractCegarLoop]: Abstraction has 2406 states and 3172 transitions. [2018-09-15 19:52:24,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 19:52:24,765 INFO L276 IsEmpty]: Start isEmpty. Operand 2406 states and 3172 transitions. [2018-09-15 19:52:24,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-09-15 19:52:24,775 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 19:52:24,776 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 19:52:24,776 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 19:52:24,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1293348930, now seen corresponding path program 1 times [2018-09-15 19:52:24,776 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 19:52:24,777 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 187 with the following transitions: [2018-09-15 19:52:24,777 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2087], [2089], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-15 19:52:24,787 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 19:52:24,787 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 19:52:34,931 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 19:53:03,351 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 19:53:03,351 INFO L272 AbstractInterpreter]: Visited 153 different actions 446 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 19:53:03,390 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 19:53:06,024 INFO L232 lantSequenceWeakener]: Weakened 184 states. On average, predicates are now at 75.52% of their original sizes. [2018-09-15 19:53:06,025 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 19:53:06,759 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 19:53:06,760 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 19:53:06,760 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-15 19:53:06,760 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 19:53:06,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-15 19:53:06,761 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-15 19:53:06,762 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-15 19:53:06,762 INFO L87 Difference]: Start difference. First operand 2406 states and 3172 transitions. Second operand 13 states. [2018-09-15 19:53:51,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 19:53:51,296 INFO L93 Difference]: Finished difference Result 4009 states and 6272 transitions. [2018-09-15 19:53:51,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-15 19:53:51,297 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 186 [2018-09-15 19:53:51,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 19:53:51,315 INFO L225 Difference]: With dead ends: 4009 [2018-09-15 19:53:51,315 INFO L226 Difference]: Without dead ends: 3179 [2018-09-15 19:53:51,320 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 196 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2018-09-15 19:53:51,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3179 states. [2018-09-15 19:53:51,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3179 to 3176. [2018-09-15 19:53:51,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3176 states. [2018-09-15 19:53:51,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3176 states to 3176 states and 3958 transitions. [2018-09-15 19:53:51,417 INFO L78 Accepts]: Start accepts. Automaton has 3176 states and 3958 transitions. Word has length 186 [2018-09-15 19:53:51,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 19:53:51,418 INFO L480 AbstractCegarLoop]: Abstraction has 3176 states and 3958 transitions. [2018-09-15 19:53:51,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-15 19:53:51,419 INFO L276 IsEmpty]: Start isEmpty. Operand 3176 states and 3958 transitions. [2018-09-15 19:53:51,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-09-15 19:53:51,426 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 19:53:51,428 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 19:53:51,428 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 19:53:51,428 INFO L82 PathProgramCache]: Analyzing trace with hash -630279814, now seen corresponding path program 1 times [2018-09-15 19:53:51,428 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 19:53:51,429 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 191 with the following transitions: [2018-09-15 19:53:51,431 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2087], [2089], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2680], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-15 19:53:51,442 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 19:53:51,442 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 19:54:01,955 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 19:54:45,378 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 19:54:45,378 INFO L272 AbstractInterpreter]: Visited 157 different actions 458 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 19:54:45,384 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 19:54:48,868 INFO L232 lantSequenceWeakener]: Weakened 188 states. On average, predicates are now at 75.51% of their original sizes. [2018-09-15 19:54:48,868 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 19:54:50,528 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 19:54:50,528 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 19:54:50,528 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-09-15 19:54:50,528 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 19:54:50,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-15 19:54:50,529 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-15 19:54:50,530 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2018-09-15 19:54:50,530 INFO L87 Difference]: Start difference. First operand 3176 states and 3958 transitions. Second operand 17 states. Received shutdown request... [2018-09-15 19:54:55,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-15 19:54:55,711 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 19:54:55,716 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 19:54:55,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 07:54:55 BoogieIcfgContainer [2018-09-15 19:54:55,717 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 19:54:55,717 INFO L168 Benchmark]: Toolchain (without parser) took 255480.88 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 2.1 GB in the end (delta: -637.2 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-09-15 19:54:55,720 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 19:54:55,720 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2272.33 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: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. [2018-09-15 19:54:55,721 INFO L168 Benchmark]: Boogie Procedure Inliner took 942.73 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 946.9 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 167.4 MB. Max. memory is 7.1 GB. [2018-09-15 19:54:55,725 INFO L168 Benchmark]: Boogie Preprocessor took 303.65 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 47.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 7.1 GB. [2018-09-15 19:54:55,726 INFO L168 Benchmark]: RCFGBuilder took 10278.29 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 654.4 MB). Peak memory consumption was 654.4 MB. Max. memory is 7.1 GB. [2018-09-15 19:54:55,728 INFO L168 Benchmark]: TraceAbstraction took 241674.54 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 2.1 GB in the end (delta: -373.8 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-09-15 19:54:55,734 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2272.33 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: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 942.73 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 946.9 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 167.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 303.65 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 47.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10278.29 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 654.4 MB). Peak memory consumption was 654.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 241674.54 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 2.1 GB in the end (delta: -373.8 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 111). Cancelled while BasicCegarLoop was constructing difference of abstraction (3176states) and FLOYD_HOARE automaton (currently 8 states, 17 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 22 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 241.5s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 124.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2545 SDtfs, 8449 SDslu, 1467 SDs, 0 SdLazy, 28917 SolverSat, 2538 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 114.5s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 554 GetRequests, 488 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3176occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 103.9s AbstIntTime, 4 AbstIntIterations, 4 AbstIntStrong, 0.9936856546231544 AbsIntWeakeningRatio, 0.14772727272727273 AbsIntAvgWeakeningVarsNumRemoved, 55.11174242424242 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 507 StatesRemovedByMinimization, 3 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/Problem12_label54_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_19-54-55-765.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label54_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_19-54-55-765.csv Completed graceful shutdown