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-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label23_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 08:43:02,968 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 08:43:02,971 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 08:43:02,983 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 08:43:02,983 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 08:43:02,984 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 08:43:02,986 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 08:43:02,987 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 08:43:02,989 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 08:43:02,990 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 08:43:02,991 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 08:43:02,992 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 08:43:02,992 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 08:43:02,993 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 08:43:02,994 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 08:43:02,995 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 08:43:02,996 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 08:43:02,998 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 08:43:03,000 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 08:43:03,004 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 08:43:03,009 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 08:43:03,010 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 08:43:03,012 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 08:43:03,012 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 08:43:03,013 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 08:43:03,013 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 08:43:03,016 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 08:43:03,016 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 08:43:03,019 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 08:43:03,020 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 08:43:03,020 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 08:43:03,021 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 08:43:03,021 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 08:43:03,021 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 08:43:03,022 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 08:43:03,025 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 08:43:03,025 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-27 08:43:03,052 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 08:43:03,052 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 08:43:03,055 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 08:43:03,056 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 08:43:03,056 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 08:43:03,056 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 08:43:03,056 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-27 08:43:03,057 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 08:43:03,057 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 08:43:03,057 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 08:43:03,057 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 08:43:03,057 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 08:43:03,058 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 08:43:03,058 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 08:43:03,059 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 08:43:03,059 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 08:43:03,059 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 08:43:03,059 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 08:43:03,059 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 08:43:03,060 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 08:43:03,060 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 08:43:03,060 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 08:43:03,060 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 08:43:03,060 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 08:43:03,061 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 08:43:03,061 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 08:43:03,061 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 08:43:03,061 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 08:43:03,061 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 08:43:03,062 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 08:43:03,062 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 08:43:03,062 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 08:43:03,062 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 08:43:03,062 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 08:43:03,065 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 08:43:03,065 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 08:43:03,112 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 08:43:03,127 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 08:43:03,132 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 08:43:03,133 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 08:43:03,134 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 08:43:03,134 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label23_true-unreach-call.c [2018-10-27 08:43:03,200 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0623367e6/bc5978ee69024d118287b3e50a72acd2/FLAGb2727af65 [2018-10-27 08:43:03,957 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 08:43:03,959 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label23_true-unreach-call.c [2018-10-27 08:43:03,989 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0623367e6/bc5978ee69024d118287b3e50a72acd2/FLAGb2727af65 [2018-10-27 08:43:04,006 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0623367e6/bc5978ee69024d118287b3e50a72acd2 [2018-10-27 08:43:04,019 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 08:43:04,021 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 08:43:04,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 08:43:04,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 08:43:04,027 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 08:43:04,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:43:04" (1/1) ... [2018-10-27 08:43:04,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@441f49ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:04, skipping insertion in model container [2018-10-27 08:43:04,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:43:04" (1/1) ... [2018-10-27 08:43:04,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 08:43:04,189 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 08:43:05,364 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 08:43:05,368 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 08:43:05,958 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 08:43:05,993 INFO L193 MainTranslator]: Completed translation [2018-10-27 08:43:05,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:05 WrapperNode [2018-10-27 08:43:05,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 08:43:05,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 08:43:05,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 08:43:05,996 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 08:43:06,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:05" (1/1) ... [2018-10-27 08:43:06,079 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:05" (1/1) ... [2018-10-27 08:43:06,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 08:43:06,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 08:43:06,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 08:43:06,439 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 08:43:06,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:05" (1/1) ... [2018-10-27 08:43:06,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:05" (1/1) ... [2018-10-27 08:43:06,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:05" (1/1) ... [2018-10-27 08:43:06,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:05" (1/1) ... [2018-10-27 08:43:06,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:05" (1/1) ... [2018-10-27 08:43:06,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:05" (1/1) ... [2018-10-27 08:43:06,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:05" (1/1) ... [2018-10-27 08:43:06,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 08:43:06,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 08:43:06,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 08:43:06,686 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 08:43:06,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:05" (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 [2018-10-27 08:43:06,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 08:43:06,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 08:43:06,767 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 08:43:06,767 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 08:43:06,767 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 08:43:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 08:43:06,768 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 08:43:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 08:43:06,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 08:43:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 08:43:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 08:43:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 08:43:14,827 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 08:43:14,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:43:14 BoogieIcfgContainer [2018-10-27 08:43:14,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 08:43:14,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 08:43:14,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 08:43:14,833 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 08:43:14,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 08:43:04" (1/3) ... [2018-10-27 08:43:14,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4211429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:43:14, skipping insertion in model container [2018-10-27 08:43:14,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:05" (2/3) ... [2018-10-27 08:43:14,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4211429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:43:14, skipping insertion in model container [2018-10-27 08:43:14,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:43:14" (3/3) ... [2018-10-27 08:43:14,837 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label23_true-unreach-call.c [2018-10-27 08:43:14,847 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 08:43:14,858 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 08:43:14,876 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 08:43:14,925 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 08:43:14,925 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 08:43:14,926 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 08:43:14,926 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 08:43:14,926 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 08:43:14,926 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 08:43:14,926 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 08:43:14,927 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 08:43:14,966 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-27 08:43:14,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-10-27 08:43:14,977 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:43:14,978 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] [2018-10-27 08:43:14,982 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:43:14,990 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:43:14,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1417281084, now seen corresponding path program 1 times [2018-10-27 08:43:14,994 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:43:15,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:43:15,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:43:15,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:43:15,057 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:43:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:43:15,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:43:15,636 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:43:15,637 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 08:43:15,637 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:43:15,644 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 08:43:15,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 08:43:15,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 08:43:15,666 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-10-27 08:43:23,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:43:23,005 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-10-27 08:43:23,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 08:43:23,007 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2018-10-27 08:43:23,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:43:23,044 INFO L225 Difference]: With dead ends: 2251 [2018-10-27 08:43:23,044 INFO L226 Difference]: Without dead ends: 1474 [2018-10-27 08:43:23,054 INFO L605 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 [2018-10-27 08:43:23,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-10-27 08:43:23,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-10-27 08:43:23,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-10-27 08:43:23,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2721 transitions. [2018-10-27 08:43:23,193 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2721 transitions. Word has length 62 [2018-10-27 08:43:23,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:43:23,194 INFO L481 AbstractCegarLoop]: Abstraction has 1474 states and 2721 transitions. [2018-10-27 08:43:23,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 08:43:23,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2721 transitions. [2018-10-27 08:43:23,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-10-27 08:43:23,208 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:43:23,208 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:43:23,208 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:43:23,211 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:43:23,212 INFO L82 PathProgramCache]: Analyzing trace with hash 586978190, now seen corresponding path program 1 times [2018-10-27 08:43:23,212 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:43:23,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:43:23,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:43:23,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:43:23,215 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:43:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:43:23,510 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:43:23,511 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:43:23,511 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 08:43:23,511 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:43:23,513 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 08:43:23,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 08:43:23,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 08:43:23,514 INFO L87 Difference]: Start difference. First operand 1474 states and 2721 transitions. Second operand 5 states. [2018-10-27 08:43:31,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:43:31,395 INFO L93 Difference]: Finished difference Result 3698 states and 6787 transitions. [2018-10-27 08:43:31,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 08:43:31,396 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 134 [2018-10-27 08:43:31,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:43:31,410 INFO L225 Difference]: With dead ends: 3698 [2018-10-27 08:43:31,410 INFO L226 Difference]: Without dead ends: 2230 [2018-10-27 08:43:31,415 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 08:43:31,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2018-10-27 08:43:31,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 2209. [2018-10-27 08:43:31,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2209 states. [2018-10-27 08:43:31,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 3833 transitions. [2018-10-27 08:43:31,482 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 3833 transitions. Word has length 134 [2018-10-27 08:43:31,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:43:31,482 INFO L481 AbstractCegarLoop]: Abstraction has 2209 states and 3833 transitions. [2018-10-27 08:43:31,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 08:43:31,483 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 3833 transitions. [2018-10-27 08:43:31,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-10-27 08:43:31,494 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:43:31,494 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:43:31,498 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:43:31,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:43:31,498 INFO L82 PathProgramCache]: Analyzing trace with hash -171937505, now seen corresponding path program 1 times [2018-10-27 08:43:31,499 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:43:31,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:43:31,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:43:31,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:43:31,500 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:43:31,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:43:31,922 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 08:43:32,335 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:43:32,336 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:43:32,336 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 08:43:32,336 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:43:32,337 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:43:32,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:43:32,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:43:32,337 INFO L87 Difference]: Start difference. First operand 2209 states and 3833 transitions. Second operand 6 states. [2018-10-27 08:43:40,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:43:40,166 INFO L93 Difference]: Finished difference Result 5866 states and 10122 transitions. [2018-10-27 08:43:40,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 08:43:40,181 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2018-10-27 08:43:40,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:43:40,205 INFO L225 Difference]: With dead ends: 5866 [2018-10-27 08:43:40,205 INFO L226 Difference]: Without dead ends: 3663 [2018-10-27 08:43:40,214 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 08:43:40,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3663 states. [2018-10-27 08:43:40,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3663 to 3639. [2018-10-27 08:43:40,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3639 states. [2018-10-27 08:43:40,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3639 states to 3639 states and 5517 transitions. [2018-10-27 08:43:40,318 INFO L78 Accepts]: Start accepts. Automaton has 3639 states and 5517 transitions. Word has length 157 [2018-10-27 08:43:40,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:43:40,318 INFO L481 AbstractCegarLoop]: Abstraction has 3639 states and 5517 transitions. [2018-10-27 08:43:40,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 08:43:40,319 INFO L276 IsEmpty]: Start isEmpty. Operand 3639 states and 5517 transitions. [2018-10-27 08:43:40,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-10-27 08:43:40,322 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:43:40,323 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:43:40,323 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:43:40,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:43:40,323 INFO L82 PathProgramCache]: Analyzing trace with hash -96062505, now seen corresponding path program 1 times [2018-10-27 08:43:40,323 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:43:40,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:43:40,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:43:40,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:43:40,325 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:43:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:43:40,572 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:43:40,572 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:43:40,572 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 08:43:40,572 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:43:40,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:43:40,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:43:40,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:43:40,574 INFO L87 Difference]: Start difference. First operand 3639 states and 5517 transitions. Second operand 6 states. [2018-10-27 08:43:49,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:43:49,136 INFO L93 Difference]: Finished difference Result 8735 states and 13271 transitions. [2018-10-27 08:43:49,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 08:43:49,138 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 161 [2018-10-27 08:43:49,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:43:49,161 INFO L225 Difference]: With dead ends: 8735 [2018-10-27 08:43:49,162 INFO L226 Difference]: Without dead ends: 5102 [2018-10-27 08:43:49,174 INFO L605 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 [2018-10-27 08:43:49,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5102 states. [2018-10-27 08:43:49,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5102 to 5084. [2018-10-27 08:43:49,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5084 states. [2018-10-27 08:43:49,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5084 states to 5084 states and 6940 transitions. [2018-10-27 08:43:49,308 INFO L78 Accepts]: Start accepts. Automaton has 5084 states and 6940 transitions. Word has length 161 [2018-10-27 08:43:49,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:43:49,309 INFO L481 AbstractCegarLoop]: Abstraction has 5084 states and 6940 transitions. [2018-10-27 08:43:49,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 08:43:49,309 INFO L276 IsEmpty]: Start isEmpty. Operand 5084 states and 6940 transitions. [2018-10-27 08:43:49,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-10-27 08:43:49,314 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:43:49,314 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:43:49,314 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:43:49,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:43:49,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1854006202, now seen corresponding path program 1 times [2018-10-27 08:43:49,315 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:43:49,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:43:49,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:43:49,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:43:49,317 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:43:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:43:49,632 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 08:43:49,745 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:43:49,746 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:43:49,746 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 08:43:49,746 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:43:49,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:43:49,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:43:49,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:43:49,747 INFO L87 Difference]: Start difference. First operand 5084 states and 6940 transitions. Second operand 6 states. [2018-10-27 08:43:55,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:43:55,572 INFO L93 Difference]: Finished difference Result 13307 states and 18750 transitions. [2018-10-27 08:43:55,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 08:43:55,579 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 192 [2018-10-27 08:43:55,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:43:55,615 INFO L225 Difference]: With dead ends: 13307 [2018-10-27 08:43:55,615 INFO L226 Difference]: Without dead ends: 8229 [2018-10-27 08:43:55,628 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 08:43:55,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8229 states. [2018-10-27 08:43:55,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8229 to 8128. [2018-10-27 08:43:55,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8128 states. [2018-10-27 08:43:55,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8128 states to 8128 states and 10817 transitions. [2018-10-27 08:43:55,837 INFO L78 Accepts]: Start accepts. Automaton has 8128 states and 10817 transitions. Word has length 192 [2018-10-27 08:43:55,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:43:55,837 INFO L481 AbstractCegarLoop]: Abstraction has 8128 states and 10817 transitions. [2018-10-27 08:43:55,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 08:43:55,839 INFO L276 IsEmpty]: Start isEmpty. Operand 8128 states and 10817 transitions. [2018-10-27 08:43:55,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-10-27 08:43:55,846 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:43:55,847 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-27 08:43:55,847 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:43:55,847 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:43:55,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1030698289, now seen corresponding path program 1 times [2018-10-27 08:43:55,848 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:43:55,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:43:55,849 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:43:55,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:43:55,849 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:43:55,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:43:56,250 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 110 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 08:43:56,250 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:43:56,250 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:43:56,251 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 226 with the following transitions: [2018-10-27 08:43:56,253 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2019], [2021], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2124], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2200], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-27 08:43:56,313 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:43:56,314 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:43:56,807 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 08:43:56,809 INFO L272 AbstractInterpreter]: Visited 96 different actions 96 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-27 08:43:56,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:43:56,860 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 08:43:57,448 INFO L227 lantSequenceWeakener]: Weakened 216 states. On average, predicates are now at 78.24% of their original sizes. [2018-10-27 08:43:57,448 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 08:43:57,690 INFO L415 sIntCurrentIteration]: We unified 224 AI predicates to 224 [2018-10-27 08:43:57,690 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 08:43:57,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 08:43:57,695 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-27 08:43:57,695 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:43:57,696 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:43:57,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:43:57,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:43:57,696 INFO L87 Difference]: Start difference. First operand 8128 states and 10817 transitions. Second operand 6 states. [2018-10-27 08:45:55,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:45:55,663 INFO L93 Difference]: Finished difference Result 16955 states and 22499 transitions. [2018-10-27 08:45:55,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 08:45:55,663 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 225 [2018-10-27 08:45:55,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:45:55,690 INFO L225 Difference]: With dead ends: 16955 [2018-10-27 08:45:55,691 INFO L226 Difference]: Without dead ends: 8833 [2018-10-27 08:45:55,706 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 225 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-27 08:45:55,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8833 states. [2018-10-27 08:45:55,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8833 to 8831. [2018-10-27 08:45:55,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8831 states. [2018-10-27 08:45:55,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8831 states to 8831 states and 11532 transitions. [2018-10-27 08:45:55,868 INFO L78 Accepts]: Start accepts. Automaton has 8831 states and 11532 transitions. Word has length 225 [2018-10-27 08:45:55,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:45:55,869 INFO L481 AbstractCegarLoop]: Abstraction has 8831 states and 11532 transitions. [2018-10-27 08:45:55,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 08:45:55,869 INFO L276 IsEmpty]: Start isEmpty. Operand 8831 states and 11532 transitions. [2018-10-27 08:45:55,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2018-10-27 08:45:55,882 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:45:55,882 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:45:55,883 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:45:55,883 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:45:55,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1304753262, now seen corresponding path program 1 times [2018-10-27 08:45:55,883 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:45:55,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:45:55,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:45:55,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:45:55,885 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:45:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:45:56,614 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 224 proven. 171 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 08:45:56,615 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:45:56,615 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:45:56,615 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 413 with the following transitions: [2018-10-27 08:45:56,616 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2019], [2021], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2124], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2200], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-27 08:45:56,624 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:45:56,625 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:45:56,855 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 08:45:56,855 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 08:45:56,870 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:45:56,870 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 08:45:57,382 INFO L227 lantSequenceWeakener]: Weakened 409 states. On average, predicates are now at 77.84% of their original sizes. [2018-10-27 08:45:57,382 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 08:45:58,023 INFO L415 sIntCurrentIteration]: We unified 411 AI predicates to 411 [2018-10-27 08:45:58,024 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 08:45:58,024 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 08:45:58,024 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2018-10-27 08:45:58,024 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:45:58,025 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-27 08:45:58,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-27 08:45:58,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-10-27 08:45:58,025 INFO L87 Difference]: Start difference. First operand 8831 states and 11532 transitions. Second operand 10 states. Received shutdown request... [2018-10-27 08:47:06,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-27 08:47:06,753 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 08:47:06,758 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 08:47:06,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 08:47:06 BoogieIcfgContainer [2018-10-27 08:47:06,758 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 08:47:06,759 INFO L168 Benchmark]: Toolchain (without parser) took 242739.60 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-27 08:47:06,760 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-10-27 08:47:06,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1972.30 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: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-27 08:47:06,762 INFO L168 Benchmark]: Boogie Procedure Inliner took 442.61 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: -920.8 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2018-10-27 08:47:06,763 INFO L168 Benchmark]: Boogie Preprocessor took 246.18 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: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2018-10-27 08:47:06,764 INFO L168 Benchmark]: RCFGBuilder took 8142.98 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 525.1 MB). Peak memory consumption was 525.1 MB. Max. memory is 7.1 GB. [2018-10-27 08:47:06,768 INFO L168 Benchmark]: TraceAbstraction took 231929.52 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.6 GB in the beginning and 2.5 GB in the end (delta: -841.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-10-27 08:47:06,777 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 1972.30 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: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 442.61 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: -920.8 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 246.18 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: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8142.98 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 525.1 MB). Peak memory consumption was 525.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 231929.52 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.6 GB in the beginning and 2.5 GB in the end (delta: -841.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 174). Cancelled while BasicCegarLoop was constructing difference of abstraction (8831states) and FLOYD_HOARE automaton (currently 16 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (14089 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 231.8s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 224.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1802 SDtfs, 17324 SDslu, 1256 SDs, 0 SdLazy, 28140 SolverSat, 6073 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 177.8s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 689 GetRequests, 633 SyntacticMatches, 6 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8831occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.8s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9975364838288496 AbsIntWeakeningRatio, 0.09133858267716535 AbsIntAvgWeakeningVarsNumRemoved, 16.46456692913386 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 166 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 1343 NumberOfCodeBlocks, 1343 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1336 ConstructedInterpolants, 0 QuantifiedInterpolants, 1951783 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 564/802 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown