java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label26_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 21:16:03,580 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 21:16:03,582 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 21:16:03,601 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 21:16:03,602 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 21:16:03,603 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 21:16:03,605 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 21:16:03,606 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 21:16:03,608 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 21:16:03,609 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 21:16:03,610 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 21:16:03,611 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 21:16:03,611 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 21:16:03,615 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 21:16:03,616 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 21:16:03,620 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 21:16:03,621 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 21:16:03,626 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 21:16:03,628 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 21:16:03,631 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 21:16:03,634 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 21:16:03,636 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 21:16:03,642 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 21:16:03,642 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 21:16:03,642 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 21:16:03,644 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 21:16:03,646 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 21:16:03,646 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 21:16:03,647 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 21:16:03,652 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 21:16:03,652 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 21:16:03,653 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-23 21:16:03,654 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-23 21:16:03,654 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-23 21:16:03,655 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-23 21:16:03,656 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-23 21:16:03,657 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-23 21:16:03,685 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 21:16:03,686 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 21:16:03,687 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 21:16:03,687 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 21:16:03,687 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 21:16:03,688 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 21:16:03,688 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 21:16:03,688 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 21:16:03,688 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 21:16:03,688 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 21:16:03,689 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 21:16:03,689 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 21:16:03,690 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 21:16:03,691 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 21:16:03,691 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 21:16:03,691 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 21:16:03,691 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 21:16:03,692 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 21:16:03,692 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 21:16:03,692 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 21:16:03,692 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 21:16:03,692 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 21:16:03,694 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 21:16:03,694 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 21:16:03,694 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 21:16:03,695 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 21:16:03,695 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 21:16:03,695 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 21:16:03,695 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 21:16:03,695 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 21:16:03,696 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 21:16:03,696 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 21:16:03,696 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 21:16:03,696 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 21:16:03,763 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 21:16:03,777 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 21:16:03,781 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 21:16:03,782 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 21:16:03,783 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 21:16:03,784 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label26_false-unreach-call.c [2018-10-23 21:16:03,844 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/484f95b88/8acd44e2178d4ac1b0f5b7d6ffb5b79e/FLAG49eb786a6 [2018-10-23 21:16:04,540 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 21:16:04,542 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label26_false-unreach-call.c [2018-10-23 21:16:04,564 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/484f95b88/8acd44e2178d4ac1b0f5b7d6ffb5b79e/FLAG49eb786a6 [2018-10-23 21:16:04,583 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/484f95b88/8acd44e2178d4ac1b0f5b7d6ffb5b79e [2018-10-23 21:16:04,597 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 21:16:04,599 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 21:16:04,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 21:16:04,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 21:16:04,605 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 21:16:04,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:16:04" (1/1) ... [2018-10-23 21:16:04,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d3e8be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:04, skipping insertion in model container [2018-10-23 21:16:04,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:16:04" (1/1) ... [2018-10-23 21:16:04,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 21:16:04,730 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 21:16:05,386 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 21:16:05,391 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 21:16:05,660 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 21:16:05,686 INFO L193 MainTranslator]: Completed translation [2018-10-23 21:16:05,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:05 WrapperNode [2018-10-23 21:16:05,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 21:16:05,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 21:16:05,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 21:16:05,688 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 21:16:05,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:05" (1/1) ... [2018-10-23 21:16:05,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:05" (1/1) ... [2018-10-23 21:16:06,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 21:16:06,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 21:16:06,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 21:16:06,005 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 21:16:06,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:05" (1/1) ... [2018-10-23 21:16:06,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:05" (1/1) ... [2018-10-23 21:16:06,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:05" (1/1) ... [2018-10-23 21:16:06,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:05" (1/1) ... [2018-10-23 21:16:06,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:05" (1/1) ... [2018-10-23 21:16:06,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:05" (1/1) ... [2018-10-23 21:16:06,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:05" (1/1) ... [2018-10-23 21:16:06,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 21:16:06,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 21:16:06,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 21:16:06,167 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 21:16:06,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-23 21:16:06,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 21:16:06,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 21:16:06,239 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 21:16:06,240 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 21:16:06,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 21:16:06,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 21:16:06,240 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 21:16:06,240 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 21:16:11,676 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 21:16:11,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:16:11 BoogieIcfgContainer [2018-10-23 21:16:11,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 21:16:11,679 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 21:16:11,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 21:16:11,683 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 21:16:11,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:16:04" (1/3) ... [2018-10-23 21:16:11,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f3a6a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:16:11, skipping insertion in model container [2018-10-23 21:16:11,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:16:05" (2/3) ... [2018-10-23 21:16:11,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f3a6a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:16:11, skipping insertion in model container [2018-10-23 21:16:11,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:16:11" (3/3) ... [2018-10-23 21:16:11,688 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label26_false-unreach-call.c [2018-10-23 21:16:11,699 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 21:16:11,709 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 21:16:11,729 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 21:16:11,771 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 21:16:11,771 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 21:16:11,771 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 21:16:11,771 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 21:16:11,772 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 21:16:11,772 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 21:16:11,772 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 21:16:11,772 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 21:16:11,802 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-23 21:16:11,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-10-23 21:16:11,821 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:16:11,822 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:16:11,824 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:16:11,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:16:11,832 INFO L82 PathProgramCache]: Analyzing trace with hash 813355628, now seen corresponding path program 1 times [2018-10-23 21:16:11,835 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:16:11,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:11,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:16:11,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:11,887 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:16:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:16:12,731 WARN L179 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-23 21:16:12,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:16:12,987 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:16:12,987 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 21:16:12,987 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 21:16:12,994 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:16:13,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:16:13,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:16:13,015 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-10-23 21:16:16,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:16:16,454 INFO L93 Difference]: Finished difference Result 1058 states and 1911 transitions. [2018-10-23 21:16:16,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:16:16,456 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2018-10-23 21:16:16,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:16:16,483 INFO L225 Difference]: With dead ends: 1058 [2018-10-23 21:16:16,483 INFO L226 Difference]: Without dead ends: 740 [2018-10-23 21:16:16,491 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:16:16,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2018-10-23 21:16:16,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 525. [2018-10-23 21:16:16,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2018-10-23 21:16:16,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 877 transitions. [2018-10-23 21:16:16,634 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 877 transitions. Word has length 163 [2018-10-23 21:16:16,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:16:16,635 INFO L481 AbstractCegarLoop]: Abstraction has 525 states and 877 transitions. [2018-10-23 21:16:16,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:16:16,636 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 877 transitions. [2018-10-23 21:16:16,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-10-23 21:16:16,650 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:16:16,650 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:16:16,651 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:16:16,655 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:16:16,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1235682712, now seen corresponding path program 1 times [2018-10-23 21:16:16,656 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:16:16,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:16,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:16:16,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:16,660 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:16:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:16:17,152 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:16:17,152 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:16:17,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 21:16:17,153 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 21:16:17,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 21:16:17,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 21:16:17,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 21:16:17,155 INFO L87 Difference]: Start difference. First operand 525 states and 877 transitions. Second operand 3 states. [2018-10-23 21:16:19,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:16:19,194 INFO L93 Difference]: Finished difference Result 1482 states and 2552 transitions. [2018-10-23 21:16:19,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 21:16:19,195 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2018-10-23 21:16:19,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:16:19,205 INFO L225 Difference]: With dead ends: 1482 [2018-10-23 21:16:19,205 INFO L226 Difference]: Without dead ends: 963 [2018-10-23 21:16:19,211 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 21:16:19,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2018-10-23 21:16:19,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 948. [2018-10-23 21:16:19,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 948 states. [2018-10-23 21:16:19,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1560 transitions. [2018-10-23 21:16:19,262 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1560 transitions. Word has length 176 [2018-10-23 21:16:19,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:16:19,262 INFO L481 AbstractCegarLoop]: Abstraction has 948 states and 1560 transitions. [2018-10-23 21:16:19,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 21:16:19,263 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1560 transitions. [2018-10-23 21:16:19,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-10-23 21:16:19,267 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:16:19,268 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:16:19,268 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:16:19,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:16:19,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1234531637, now seen corresponding path program 1 times [2018-10-23 21:16:19,269 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:16:19,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:19,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:16:19,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:19,270 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:16:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:16:19,509 WARN L179 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-23 21:16:19,604 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:16:19,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:16:19,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 21:16:19,604 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 21:16:19,605 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 21:16:19,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 21:16:19,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 21:16:19,606 INFO L87 Difference]: Start difference. First operand 948 states and 1560 transitions. Second operand 6 states. [2018-10-23 21:16:23,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:16:23,419 INFO L93 Difference]: Finished difference Result 2887 states and 4998 transitions. [2018-10-23 21:16:23,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-23 21:16:23,420 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 181 [2018-10-23 21:16:23,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:16:23,448 INFO L225 Difference]: With dead ends: 2887 [2018-10-23 21:16:23,448 INFO L226 Difference]: Without dead ends: 1945 [2018-10-23 21:16:23,456 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 21:16:23,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2018-10-23 21:16:23,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1877. [2018-10-23 21:16:23,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1877 states. [2018-10-23 21:16:23,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 3110 transitions. [2018-10-23 21:16:23,556 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 3110 transitions. Word has length 181 [2018-10-23 21:16:23,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:16:23,556 INFO L481 AbstractCegarLoop]: Abstraction has 1877 states and 3110 transitions. [2018-10-23 21:16:23,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 21:16:23,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 3110 transitions. [2018-10-23 21:16:23,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-10-23 21:16:23,564 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:16:23,565 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:16:23,565 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:16:23,565 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:16:23,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1131407823, now seen corresponding path program 1 times [2018-10-23 21:16:23,566 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 21:16:23,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:23,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:16:23,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:16:23,568 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 21:16:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:16:23,817 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:16:23,818 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:16:23,818 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 21:16:23,819 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 195 with the following transitions: [2018-10-23 21:16:23,822 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [28], [29], [33], [37], [41], [45], [48], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [765], [767], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-23 21:16:23,951 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 21:16:23,951 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-10-23 21:20:40,088 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-23 21:20:40,089 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-23 21:20:40,090 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-23 21:20:40,090 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:20:40,090 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 21:20:40,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:20:40,104 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-23 21:20:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:20:40,312 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 21:20:40,347 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-23 21:20:40,548 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 21:20:40,548 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 21:20:40,555 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 21:20:40,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:20:40 BoogieIcfgContainer [2018-10-23 21:20:40,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 21:20:40,557 INFO L168 Benchmark]: Toolchain (without parser) took 275959.26 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 1.0 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -773.1 MB). Peak memory consumption was 247.1 MB. Max. memory is 7.1 GB. [2018-10-23 21:20:40,558 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. [2018-10-23 21:20:40,559 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1087.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-23 21:20:40,559 INFO L168 Benchmark]: Boogie Procedure Inliner took 316.31 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -867.5 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2018-10-23 21:20:40,560 INFO L168 Benchmark]: Boogie Preprocessor took 162.28 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: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2018-10-23 21:20:40,561 INFO L168 Benchmark]: RCFGBuilder took 5510.54 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 258.1 MB). Peak memory consumption was 258.1 MB. Max. memory is 7.1 GB. [2018-10-23 21:20:40,562 INFO L168 Benchmark]: TraceAbstraction took 268877.32 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 275.8 MB). Free memory was 1.9 GB in the beginning and 2.2 GB in the end (delta: -275.7 MB). Peak memory consumption was 54.6 kB. Max. memory is 7.1 GB. [2018-10-23 21:20:40,568 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 1087.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 316.31 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -867.5 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 162.28 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: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5510.54 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 258.1 MB). Peak memory consumption was 258.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 268877.32 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 275.8 MB). Free memory was 1.9 GB in the beginning and 2.2 GB in the end (delta: -275.7 MB). Peak memory consumption was 54.6 kB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1503]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1503). Cancelled while BasicCegarLoop was analyzing trace of length 195 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 268.7s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 9.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 891 SDtfs, 1724 SDslu, 476 SDs, 0 SdLazy, 3078 SolverSat, 674 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1877occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 256.2s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 298 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 520 NumberOfCodeBlocks, 520 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 517 ConstructedInterpolants, 0 QuantifiedInterpolants, 369199 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 25/25 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown