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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label02_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 20:15:28,089 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 20:15:28,092 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 20:15:28,104 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 20:15:28,104 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 20:15:28,105 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 20:15:28,107 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 20:15:28,108 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 20:15:28,110 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 20:15:28,111 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 20:15:28,112 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 20:15:28,112 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 20:15:28,113 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 20:15:28,114 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 20:15:28,116 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 20:15:28,116 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 20:15:28,117 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 20:15:28,119 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 20:15:28,121 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 20:15:28,123 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 20:15:28,124 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 20:15:28,125 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 20:15:28,127 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 20:15:28,128 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 20:15:28,128 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 20:15:28,129 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 20:15:28,130 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 20:15:28,131 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 20:15:28,131 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 20:15:28,132 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 20:15:28,132 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 20:15:28,133 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 20:15:28,134 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 20:15:28,134 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 20:15:28,135 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 20:15:28,135 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 20:15:28,136 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 20:15:28,150 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 20:15:28,151 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 20:15:28,152 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 20:15:28,152 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 20:15:28,152 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 20:15:28,152 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 20:15:28,152 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 20:15:28,153 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 20:15:28,153 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 20:15:28,153 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 20:15:28,153 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 20:15:28,153 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 20:15:28,154 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 20:15:28,154 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 20:15:28,154 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 20:15:28,155 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 20:15:28,155 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 20:15:28,155 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 20:15:28,155 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 20:15:28,155 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 20:15:28,156 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 20:15:28,156 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 20:15:28,156 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 20:15:28,156 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 20:15:28,156 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 20:15:28,157 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 20:15:28,158 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 20:15:28,158 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 20:15:28,158 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 20:15:28,158 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 20:15:28,159 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 20:15:28,159 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 20:15:28,159 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 20:15:28,159 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 20:15:28,159 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 20:15:28,215 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 20:15:28,232 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 20:15:28,235 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 20:15:28,237 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 20:15:28,237 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 20:15:28,238 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label02_true-unreach-call.c [2018-11-07 20:15:28,296 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23c437917/0e23a8741d9e45b786a61740a7be9104/FLAGcfb26c964 [2018-11-07 20:15:29,143 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 20:15:29,144 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label02_true-unreach-call.c [2018-11-07 20:15:29,177 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23c437917/0e23a8741d9e45b786a61740a7be9104/FLAGcfb26c964 [2018-11-07 20:15:29,197 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23c437917/0e23a8741d9e45b786a61740a7be9104 [2018-11-07 20:15:29,209 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 20:15:29,212 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 20:15:29,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 20:15:29,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 20:15:29,221 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 20:15:29,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:15:29" (1/1) ... [2018-11-07 20:15:29,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@193d11b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:15:29, skipping insertion in model container [2018-11-07 20:15:29,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:15:29" (1/1) ... [2018-11-07 20:15:29,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 20:15:29,407 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 20:15:30,815 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:15:30,820 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 20:15:31,391 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:15:31,430 INFO L193 MainTranslator]: Completed translation [2018-11-07 20:15:31,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:15:31 WrapperNode [2018-11-07 20:15:31,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 20:15:31,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 20:15:31,432 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 20:15:31,432 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 20:15:31,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:15:31" (1/1) ... [2018-11-07 20:15:31,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:15:31" (1/1) ... [2018-11-07 20:15:31,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 20:15:31,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 20:15:31,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 20:15:31,809 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 20:15:31,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:15:31" (1/1) ... [2018-11-07 20:15:31,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:15:31" (1/1) ... [2018-11-07 20:15:31,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:15:31" (1/1) ... [2018-11-07 20:15:31,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:15:31" (1/1) ... [2018-11-07 20:15:31,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:15:31" (1/1) ... [2018-11-07 20:15:32,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:15:31" (1/1) ... [2018-11-07 20:15:32,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:15:31" (1/1) ... [2018-11-07 20:15:32,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 20:15:32,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 20:15:32,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 20:15:32,055 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 20:15:32,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:15:31" (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 [2018-11-07 20:15:32,130 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 20:15:32,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 20:15:32,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 20:15:32,131 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 20:15:32,131 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 20:15:32,131 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 20:15:32,131 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 20:15:32,132 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 20:15:32,132 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 20:15:32,132 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 20:15:32,132 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 20:15:32,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 20:15:32,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 20:15:32,134 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 20:15:32,134 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 20:15:41,351 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 20:15:41,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:15:41 BoogieIcfgContainer [2018-11-07 20:15:41,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 20:15:41,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 20:15:41,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 20:15:41,357 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 20:15:41,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:15:29" (1/3) ... [2018-11-07 20:15:41,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e6974a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:15:41, skipping insertion in model container [2018-11-07 20:15:41,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:15:31" (2/3) ... [2018-11-07 20:15:41,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e6974a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:15:41, skipping insertion in model container [2018-11-07 20:15:41,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:15:41" (3/3) ... [2018-11-07 20:15:41,360 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label02_true-unreach-call.c [2018-11-07 20:15:41,371 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 20:15:41,381 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 20:15:41,399 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 20:15:41,455 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 20:15:41,455 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 20:15:41,455 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 20:15:41,456 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 20:15:41,456 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 20:15:41,456 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 20:15:41,456 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 20:15:41,456 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 20:15:41,513 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-11-07 20:15:41,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-11-07 20:15:41,524 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:15:41,526 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:15:41,528 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:15:41,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:15:41,534 INFO L82 PathProgramCache]: Analyzing trace with hash 395578323, now seen corresponding path program 1 times [2018-11-07 20:15:41,536 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:15:41,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:15:41,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:15:41,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:15:41,590 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:15:41,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:15:42,215 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:15:42,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:15:42,349 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:15:42,350 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 20:15:42,350 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:15:42,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 20:15:42,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 20:15:42,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 20:15:42,374 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-11-07 20:15:49,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:15:49,417 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-11-07 20:15:49,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 20:15:49,423 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2018-11-07 20:15:49,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:15:49,457 INFO L225 Difference]: With dead ends: 2446 [2018-11-07 20:15:49,458 INFO L226 Difference]: Without dead ends: 1604 [2018-11-07 20:15:49,471 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 20:15:49,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-11-07 20:15:49,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-11-07 20:15:49,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-11-07 20:15:49,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2861 transitions. [2018-11-07 20:15:49,620 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2861 transitions. Word has length 69 [2018-11-07 20:15:49,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:15:49,621 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2861 transitions. [2018-11-07 20:15:49,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 20:15:49,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2861 transitions. [2018-11-07 20:15:49,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-11-07 20:15:49,630 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:15:49,631 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 20:15:49,631 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:15:49,631 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:15:49,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1284545392, now seen corresponding path program 1 times [2018-11-07 20:15:49,632 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:15:49,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:15:49,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:15:49,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:15:49,633 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:15:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:15:50,060 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-07 20:15:50,061 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:15:50,061 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:15:50,062 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-11-07 20:15:50,065 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], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2319], [2321], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-07 20:15:50,116 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:15:50,116 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:15:50,952 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:15:50,955 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. [2018-11-07 20:15:50,990 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:15:50,990 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:15:51,619 INFO L227 lantSequenceWeakener]: Weakened 142 states. On average, predicates are now at 76.38% of their original sizes. [2018-11-07 20:15:51,620 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:15:52,307 INFO L415 sIntCurrentIteration]: We unified 144 AI predicates to 144 [2018-11-07 20:15:52,307 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:15:52,308 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:15:52,308 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2018-11-07 20:15:52,309 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:15:52,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 20:15:52,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 20:15:52,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-07 20:15:52,311 INFO L87 Difference]: Start difference. First operand 1604 states and 2861 transitions. Second operand 11 states. [2018-11-07 20:16:01,830 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:16:52,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:16:52,892 INFO L93 Difference]: Finished difference Result 5512 states and 10057 transitions. [2018-11-07 20:16:52,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-07 20:16:52,892 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 145 [2018-11-07 20:16:52,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:16:52,913 INFO L225 Difference]: With dead ends: 5512 [2018-11-07 20:16:52,913 INFO L226 Difference]: Without dead ends: 3914 [2018-11-07 20:16:52,921 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 153 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2018-11-07 20:16:52,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3914 states. [2018-11-07 20:16:53,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3914 to 3911. [2018-11-07 20:16:53,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3911 states. [2018-11-07 20:16:53,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3911 states to 3911 states and 5199 transitions. [2018-11-07 20:16:53,026 INFO L78 Accepts]: Start accepts. Automaton has 3911 states and 5199 transitions. Word has length 145 [2018-11-07 20:16:53,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:16:53,027 INFO L480 AbstractCegarLoop]: Abstraction has 3911 states and 5199 transitions. [2018-11-07 20:16:53,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-07 20:16:53,028 INFO L276 IsEmpty]: Start isEmpty. Operand 3911 states and 5199 transitions. [2018-11-07 20:16:53,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2018-11-07 20:16:53,036 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:16:53,036 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 20:16:53,037 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:16:53,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:16:53,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1678798471, now seen corresponding path program 1 times [2018-11-07 20:16:53,037 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:16:53,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:16:53,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:16:53,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:16:53,039 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:16:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:16:53,411 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-11-07 20:16:53,411 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:16:53,413 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 20:16:53,413 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:16:53,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 20:16:53,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 20:16:53,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 20:16:53,418 INFO L87 Difference]: Start difference. First operand 3911 states and 5199 transitions. Second operand 3 states. [2018-11-07 20:17:00,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:17:00,283 INFO L93 Difference]: Finished difference Result 7045 states and 10900 transitions. [2018-11-07 20:17:00,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 20:17:00,290 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 291 [2018-11-07 20:17:00,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:17:00,326 INFO L225 Difference]: With dead ends: 7045 [2018-11-07 20:17:00,326 INFO L226 Difference]: Without dead ends: 5447 [2018-11-07 20:17:00,335 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 20:17:00,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5447 states. [2018-11-07 20:17:00,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5447 to 5447. [2018-11-07 20:17:00,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5447 states. [2018-11-07 20:17:00,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 7191 transitions. [2018-11-07 20:17:00,481 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 7191 transitions. Word has length 291 [2018-11-07 20:17:00,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:17:00,482 INFO L480 AbstractCegarLoop]: Abstraction has 5447 states and 7191 transitions. [2018-11-07 20:17:00,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 20:17:00,483 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 7191 transitions. [2018-11-07 20:17:00,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2018-11-07 20:17:00,490 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:17:00,490 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 20:17:00,491 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:17:00,491 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:17:00,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1203660536, now seen corresponding path program 1 times [2018-11-07 20:17:00,491 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:17:00,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:17:00,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:17:00,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:17:00,493 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:17:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:17:01,132 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 199 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:17:01,132 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:17:01,133 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:17:01,133 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 293 with the following transitions: [2018-11-07 20:17:01,136 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], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2319], [2321], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2388], [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] [2018-11-07 20:17:01,155 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:17:01,156 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:17:01,415 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:17:01,619 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:17:01,619 INFO L272 AbstractInterpreter]: Visited 154 different actions 304 times. Merged at 5 different actions 7 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 20:17:01,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:17:01,625 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:17:02,183 INFO L227 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 78.75% of their original sizes. [2018-11-07 20:17:02,183 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:17:02,839 INFO L415 sIntCurrentIteration]: We unified 291 AI predicates to 291 [2018-11-07 20:17:02,839 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:17:02,839 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:17:02,839 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 24 [2018-11-07 20:17:02,839 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:17:02,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-07 20:17:02,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-07 20:17:02,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2018-11-07 20:17:02,841 INFO L87 Difference]: Start difference. First operand 5447 states and 7191 transitions. Second operand 20 states. Received shutdown request... [2018-11-07 20:18:58,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-07 20:18:58,181 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 20:18:58,187 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 20:18:58,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:18:58 BoogieIcfgContainer [2018-11-07 20:18:58,188 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 20:18:58,189 INFO L168 Benchmark]: Toolchain (without parser) took 208978.62 ms. Allocated memory was 1.5 GB in the beginning and 7.3 GB in the end (delta: 5.8 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.4 GB). Peak memory consumption was 4.5 GB. Max. memory is 7.1 GB. [2018-11-07 20:18:58,190 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 20:18:58,191 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2218.21 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: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-11-07 20:18:58,191 INFO L168 Benchmark]: Boogie Procedure Inliner took 376.89 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 782.8 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. [2018-11-07 20:18:58,192 INFO L168 Benchmark]: Boogie Preprocessor took 245.69 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2018-11-07 20:18:58,193 INFO L168 Benchmark]: RCFGBuilder took 9297.00 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 650.2 MB). Peak memory consumption was 650.2 MB. Max. memory is 7.1 GB. [2018-11-07 20:18:58,194 INFO L168 Benchmark]: TraceAbstraction took 196834.73 ms. Allocated memory was 2.3 GB in the beginning and 7.3 GB in the end (delta: 5.0 GB). Free memory was 1.6 GB in the beginning and 2.7 GB in the end (delta: -1.2 GB). Peak memory consumption was 3.8 GB. Max. memory is 7.1 GB. [2018-11-07 20:18:58,201 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2218.21 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: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 376.89 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 782.8 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 245.69 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9297.00 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 650.2 MB). Peak memory consumption was 650.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 196834.73 ms. Allocated memory was 2.3 GB in the beginning and 7.3 GB in the end (delta: 5.0 GB). Free memory was 1.6 GB in the beginning and 2.7 GB in the end (delta: -1.2 GB). Peak memory consumption was 3.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 198]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 198). Cancelled while BasicCegarLoop was constructing difference of abstraction (5447states) and FLOYD_HOARE automaton (currently 24 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (9252 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 196.7s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 189.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2787 SDtfs, 8298 SDslu, 1162 SDs, 0 SdLazy, 27528 SolverSat, 3539 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 81.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 469 GetRequests, 414 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5447occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.4s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.997494328593279 AbsIntWeakeningRatio, 0.1103448275862069 AbsIntAvgWeakeningVarsNumRemoved, 21.806896551724137 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 797 NumberOfCodeBlocks, 797 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 793 ConstructedInterpolants, 0 QuantifiedInterpolants, 483447 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 403/463 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown