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/Problem19_label23_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 19:50:36,477 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 19:50:36,479 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 19:50:36,497 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 19:50:36,497 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 19:50:36,498 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 19:50:36,502 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 19:50:36,504 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 19:50:36,508 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 19:50:36,508 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 19:50:36,510 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 19:50:36,510 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 19:50:36,511 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 19:50:36,515 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 19:50:36,516 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 19:50:36,517 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 19:50:36,525 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 19:50:36,526 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 19:50:36,531 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 19:50:36,536 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 19:50:36,538 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 19:50:36,539 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 19:50:36,544 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 19:50:36,544 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 19:50:36,545 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 19:50:36,546 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 19:50:36,546 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 19:50:36,547 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 19:50:36,548 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 19:50:36,549 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 19:50:36,549 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 19:50:36,550 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 19:50:36,550 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 19:50:36,550 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 19:50:36,551 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 19:50:36,552 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 19:50:36,552 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 [2018-11-12 19:50:36,570 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 19:50:36,570 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 19:50:36,571 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 19:50:36,571 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 19:50:36,572 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 19:50:36,572 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 19:50:36,572 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 19:50:36,572 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 19:50:36,572 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 19:50:36,573 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 19:50:36,573 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 19:50:36,573 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 19:50:36,573 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 19:50:36,574 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 19:50:36,574 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 19:50:36,574 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 19:50:36,578 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 19:50:36,578 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 19:50:36,578 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 19:50:36,578 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 19:50:36,578 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 19:50:36,579 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 19:50:36,579 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 19:50:36,579 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 19:50:36,579 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 19:50:36,579 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 19:50:36,580 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 19:50:36,580 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 19:50:36,580 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 19:50:36,580 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 19:50:36,580 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 19:50:36,581 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 19:50:36,581 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 19:50:36,581 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 19:50:36,581 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 19:50:36,623 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 19:50:36,636 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 19:50:36,640 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 19:50:36,642 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 19:50:36,642 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 19:50:36,643 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label23_true-unreach-call.c [2018-11-12 19:50:36,696 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fcfc3428/065c5a8ce590476d8edbd9ee53697194/FLAG5896fe91f [2018-11-12 19:50:37,610 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 19:50:37,611 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label23_true-unreach-call.c [2018-11-12 19:50:37,668 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fcfc3428/065c5a8ce590476d8edbd9ee53697194/FLAG5896fe91f [2018-11-12 19:50:37,685 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fcfc3428/065c5a8ce590476d8edbd9ee53697194 [2018-11-12 19:50:37,699 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 19:50:37,701 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 19:50:37,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 19:50:37,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 19:50:37,706 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 19:50:37,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:50:37" (1/1) ... [2018-11-12 19:50:37,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@102ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:50:37, skipping insertion in model container [2018-11-12 19:50:37,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:50:37" (1/1) ... [2018-11-12 19:50:37,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 19:50:37,998 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 19:50:40,116 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:50:40,121 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 19:50:41,317 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:50:41,371 INFO L193 MainTranslator]: Completed translation [2018-11-12 19:50:41,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:50:41 WrapperNode [2018-11-12 19:50:41,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 19:50:41,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 19:50:41,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 19:50:41,374 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 19:50:41,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:50:41" (1/1) ... [2018-11-12 19:50:41,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:50:41" (1/1) ... [2018-11-12 19:50:41,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 19:50:41,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 19:50:41,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 19:50:41,931 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 19:50:41,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:50:41" (1/1) ... [2018-11-12 19:50:41,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:50:41" (1/1) ... [2018-11-12 19:50:42,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:50:41" (1/1) ... [2018-11-12 19:50:42,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:50:41" (1/1) ... [2018-11-12 19:50:42,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:50:41" (1/1) ... [2018-11-12 19:50:42,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:50:41" (1/1) ... [2018-11-12 19:50:42,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:50:41" (1/1) ... [2018-11-12 19:50:42,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 19:50:42,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 19:50:42,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 19:50:42,426 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 19:50:42,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:50:41" (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 [2018-11-12 19:50:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 19:50:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 19:50:42,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 19:50:42,504 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-11-12 19:50:42,505 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-11-12 19:50:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-11-12 19:50:42,505 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-11-12 19:50:42,505 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-12 19:50:42,505 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-12 19:50:42,506 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-12 19:50:42,506 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-12 19:50:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 19:50:42,507 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 19:50:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 19:50:42,507 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 19:50:42,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 19:50:42,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 19:50:42,508 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 19:50:42,508 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 19:50:57,254 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 19:50:57,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:50:57 BoogieIcfgContainer [2018-11-12 19:50:57,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 19:50:57,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 19:50:57,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 19:50:57,260 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 19:50:57,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:50:37" (1/3) ... [2018-11-12 19:50:57,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66064a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:50:57, skipping insertion in model container [2018-11-12 19:50:57,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:50:41" (2/3) ... [2018-11-12 19:50:57,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66064a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:50:57, skipping insertion in model container [2018-11-12 19:50:57,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:50:57" (3/3) ... [2018-11-12 19:50:57,264 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label23_true-unreach-call.c [2018-11-12 19:50:57,274 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 19:50:57,284 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 19:50:57,302 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 19:50:57,363 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 19:50:57,363 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 19:50:57,363 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 19:50:57,363 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 19:50:57,364 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 19:50:57,364 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 19:50:57,364 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 19:50:57,364 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 19:50:57,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-11-12 19:50:57,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-12 19:50:57,432 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:50:57,434 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] [2018-11-12 19:50:57,436 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:50:57,441 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:50:57,441 INFO L82 PathProgramCache]: Analyzing trace with hash -11956822, now seen corresponding path program 1 times [2018-11-12 19:50:57,443 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:50:57,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:50:57,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:50:57,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:50:57,491 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:50:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:50:57,957 WARN L179 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:50:58,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:50:58,085 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:50:58,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 19:50:58,085 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:50:58,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 19:50:58,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 19:50:58,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:50:58,114 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-11-12 19:51:11,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:51:11,997 INFO L93 Difference]: Finished difference Result 4999 states and 9420 transitions. [2018-11-12 19:51:12,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 19:51:12,003 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2018-11-12 19:51:12,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:51:12,055 INFO L225 Difference]: With dead ends: 4999 [2018-11-12 19:51:12,056 INFO L226 Difference]: Without dead ends: 3219 [2018-11-12 19:51:12,068 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:51:12,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2018-11-12 19:51:12,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 3215. [2018-11-12 19:51:12,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-11-12 19:51:12,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5845 transitions. [2018-11-12 19:51:12,280 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5845 transitions. Word has length 59 [2018-11-12 19:51:12,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:51:12,281 INFO L480 AbstractCegarLoop]: Abstraction has 3215 states and 5845 transitions. [2018-11-12 19:51:12,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 19:51:12,282 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5845 transitions. [2018-11-12 19:51:12,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-11-12 19:51:12,290 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:51:12,290 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:51:12,291 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:51:12,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:51:12,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1729747758, now seen corresponding path program 1 times [2018-11-12 19:51:12,291 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:51:12,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:51:12,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:51:12,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:51:12,293 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:51:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:51:12,624 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:51:12,624 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:51:12,625 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:51:12,625 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:51:12,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:51:12,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:51:12,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:51:12,628 INFO L87 Difference]: Start difference. First operand 3215 states and 5845 transitions. Second operand 6 states. [2018-11-12 19:51:34,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:51:34,031 INFO L93 Difference]: Finished difference Result 9331 states and 16910 transitions. [2018-11-12 19:51:34,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:51:34,044 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-11-12 19:51:34,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:51:34,083 INFO L225 Difference]: With dead ends: 9331 [2018-11-12 19:51:34,083 INFO L226 Difference]: Without dead ends: 6122 [2018-11-12 19:51:34,098 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 19:51:34,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6122 states. [2018-11-12 19:51:34,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6122 to 6084. [2018-11-12 19:51:34,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6084 states. [2018-11-12 19:51:34,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6084 states to 6084 states and 9616 transitions. [2018-11-12 19:51:34,291 INFO L78 Accepts]: Start accepts. Automaton has 6084 states and 9616 transitions. Word has length 131 [2018-11-12 19:51:34,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:51:34,291 INFO L480 AbstractCegarLoop]: Abstraction has 6084 states and 9616 transitions. [2018-11-12 19:51:34,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:51:34,292 INFO L276 IsEmpty]: Start isEmpty. Operand 6084 states and 9616 transitions. [2018-11-12 19:51:34,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-11-12 19:51:34,304 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:51:34,305 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:51:34,305 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:51:34,306 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:51:34,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1793375852, now seen corresponding path program 1 times [2018-11-12 19:51:34,307 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:51:34,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:51:34,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:51:34,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:51:34,309 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:51:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:51:34,946 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:51:34,947 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:51:34,947 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:51:34,947 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:51:34,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:51:34,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:51:34,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:51:34,951 INFO L87 Difference]: Start difference. First operand 6084 states and 9616 transitions. Second operand 6 states. [2018-11-12 19:52:02,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:52:02,572 INFO L93 Difference]: Finished difference Result 24231 states and 39683 transitions. [2018-11-12 19:52:02,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-12 19:52:02,573 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-11-12 19:52:02,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:52:02,664 INFO L225 Difference]: With dead ends: 24231 [2018-11-12 19:52:02,664 INFO L226 Difference]: Without dead ends: 18153 [2018-11-12 19:52:02,700 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-12 19:52:02,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18153 states. [2018-11-12 19:52:03,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18153 to 18074. [2018-11-12 19:52:03,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18074 states. [2018-11-12 19:52:03,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18074 states to 18074 states and 25606 transitions. [2018-11-12 19:52:03,188 INFO L78 Accepts]: Start accepts. Automaton has 18074 states and 25606 transitions. Word has length 149 [2018-11-12 19:52:03,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:52:03,189 INFO L480 AbstractCegarLoop]: Abstraction has 18074 states and 25606 transitions. [2018-11-12 19:52:03,189 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:52:03,190 INFO L276 IsEmpty]: Start isEmpty. Operand 18074 states and 25606 transitions. [2018-11-12 19:52:03,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-11-12 19:52:03,198 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:52:03,198 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:52:03,198 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:52:03,199 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:52:03,199 INFO L82 PathProgramCache]: Analyzing trace with hash -808835625, now seen corresponding path program 1 times [2018-11-12 19:52:03,199 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:52:03,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:52:03,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:52:03,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:52:03,201 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:52:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:52:03,617 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:52:03,617 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:52:03,617 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 19:52:03,618 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:52:03,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 19:52:03,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 19:52:03,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 19:52:03,619 INFO L87 Difference]: Start difference. First operand 18074 states and 25606 transitions. Second operand 5 states. [2018-11-12 19:52:20,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:52:20,268 INFO L93 Difference]: Finished difference Result 56165 states and 84531 transitions. [2018-11-12 19:52:20,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 19:52:20,269 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 194 [2018-11-12 19:52:20,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:52:20,433 INFO L225 Difference]: With dead ends: 56165 [2018-11-12 19:52:20,433 INFO L226 Difference]: Without dead ends: 38097 [2018-11-12 19:52:20,489 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 19:52:20,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38097 states. [2018-11-12 19:52:21,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38097 to 36946. [2018-11-12 19:52:21,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36946 states. [2018-11-12 19:52:21,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36946 states to 36946 states and 49783 transitions. [2018-11-12 19:52:21,488 INFO L78 Accepts]: Start accepts. Automaton has 36946 states and 49783 transitions. Word has length 194 [2018-11-12 19:52:21,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:52:21,489 INFO L480 AbstractCegarLoop]: Abstraction has 36946 states and 49783 transitions. [2018-11-12 19:52:21,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 19:52:21,489 INFO L276 IsEmpty]: Start isEmpty. Operand 36946 states and 49783 transitions. [2018-11-12 19:52:21,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-11-12 19:52:21,499 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:52:21,499 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, 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] [2018-11-12 19:52:21,499 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:52:21,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:52:21,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1152839494, now seen corresponding path program 1 times [2018-11-12 19:52:21,500 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:52:21,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:52:21,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:52:21,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:52:21,501 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:52:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:52:22,028 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 104 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 19:52:22,029 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:52:22,029 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:52:22,031 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 215 with the following transitions: [2018-11-12 19:52:22,036 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5498], [5506], [5514], [5522], [5530], [5538], [5546], [5554], [5562], [5570], [5578], [5586], [5594], [5598], [5600], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5745], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5781], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-11-12 19:52:22,097 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:52:22,098 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:52:22,594 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:52:22,595 INFO L272 AbstractInterpreter]: Visited 87 different actions 87 times. Never merged. Never widened. Performed 797 root evaluator evaluations with a maximum evaluation depth of 3. Performed 797 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 26 variables. [2018-11-12 19:52:22,650 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:52:22,650 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:52:23,138 INFO L227 lantSequenceWeakener]: Weakened 205 states. On average, predicates are now at 75.75% of their original sizes. [2018-11-12 19:52:23,139 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:52:23,505 INFO L415 sIntCurrentIteration]: We unified 213 AI predicates to 213 [2018-11-12 19:52:23,507 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:52:23,508 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:52:23,508 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-12 19:52:23,508 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:52:23,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-12 19:52:23,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-12 19:52:23,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-12 19:52:23,510 INFO L87 Difference]: Start difference. First operand 36946 states and 49783 transitions. Second operand 7 states. [2018-11-12 19:52:29,161 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-12 19:54:03,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:54:03,017 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 19:54:03,022 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 19:54:03,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 07:54:03 BoogieIcfgContainer [2018-11-12 19:54:03,023 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 19:54:03,024 INFO L168 Benchmark]: Toolchain (without parser) took 205323.96 ms. Allocated memory was 1.5 GB in the beginning and 5.7 GB in the end (delta: 4.1 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-11-12 19:54:03,025 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. [2018-11-12 19:54:03,026 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3670.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. [2018-11-12 19:54:03,026 INFO L168 Benchmark]: Boogie Procedure Inliner took 557.31 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 836.8 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 98.8 MB. Max. memory is 7.1 GB. [2018-11-12 19:54:03,027 INFO L168 Benchmark]: Boogie Preprocessor took 494.14 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 52.2 MB). Peak memory consumption was 52.2 MB. Max. memory is 7.1 GB. [2018-11-12 19:54:03,028 INFO L168 Benchmark]: RCFGBuilder took 14829.62 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 168.8 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 481.5 MB). Peak memory consumption was 671.9 MB. Max. memory is 7.1 GB. [2018-11-12 19:54:03,029 INFO L168 Benchmark]: TraceAbstraction took 185766.73 ms. Allocated memory was 2.5 GB in the beginning and 5.7 GB in the end (delta: 3.1 GB). Free memory was 1.7 GB in the beginning and 2.9 GB in the end (delta: -1.1 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-11-12 19:54:03,035 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 3670.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 557.31 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 836.8 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 98.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 494.14 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 52.2 MB). Peak memory consumption was 52.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 14829.62 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 168.8 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 481.5 MB). Peak memory consumption was 671.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 185766.73 ms. Allocated memory was 2.5 GB in the beginning and 5.7 GB in the end (delta: 3.1 GB). Free memory was 1.7 GB in the beginning and 2.9 GB in the end (delta: -1.1 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 172]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 172). Cancelled while BasicCegarLoop was constructing difference of abstraction (36946states) and FLOYD_HOARE automaton (currently 7 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (71532 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 185.6s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 179.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4309 SDtfs, 23079 SDslu, 3938 SDs, 0 SdLazy, 47086 SolverSat, 9912 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 112.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 249 GetRequests, 218 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36946occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.6s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9975837678685201 AbsIntWeakeningRatio, 0.1267605633802817 AbsIntAvgWeakeningVarsNumRemoved, 19.544600938967136 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 4 MinimizatonAttempts, 1272 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 747 NumberOfCodeBlocks, 747 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 742 ConstructedInterpolants, 0 QuantifiedInterpolants, 485718 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 265/333 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown