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/Problem11_label28_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:10:34,965 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:10:34,968 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:10:34,980 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:10:34,980 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:10:34,981 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:10:34,982 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:10:34,984 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:10:34,986 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:10:34,987 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:10:34,988 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:10:34,988 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:10:34,989 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:10:34,990 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:10:34,991 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:10:34,992 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:10:34,992 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:10:34,994 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:10:34,996 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:10:34,998 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:10:34,999 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:10:35,000 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:10:35,002 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 21:10:35,003 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 21:10:35,003 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 21:10:35,004 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 21:10:35,005 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 21:10:35,006 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 21:10:35,006 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 21:10:35,008 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 21:10:35,008 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 21:10:35,008 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 21:10:35,009 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 21:10:35,009 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 21:10:35,010 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 21:10:35,011 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 21:10:35,011 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 [2018-10-24 21:10:35,031 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:10:35,031 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:10:35,034 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:10:35,034 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:10:35,035 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:10:35,035 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:10:35,035 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:10:35,035 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:10:35,035 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:10:35,036 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:10:35,036 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:10:35,036 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:10:35,039 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:10:35,039 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:10:35,039 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:10:35,040 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:10:35,040 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:10:35,040 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:10:35,040 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:10:35,040 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:10:35,041 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:10:35,041 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:10:35,041 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:10:35,041 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:10:35,041 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:10:35,043 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:10:35,043 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:10:35,043 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:10:35,044 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:10:35,044 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:10:35,044 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:10:35,045 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:10:35,045 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:10:35,045 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:10:35,116 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:10:35,136 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:10:35,140 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:10:35,141 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:10:35,142 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:10:35,142 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label28_true-unreach-call.c [2018-10-24 21:10:35,199 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5b86fe742/f3af67d889ab4f108e371ec7916f018d/FLAG0587e9bad [2018-10-24 21:10:35,848 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:10:35,849 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label28_true-unreach-call.c [2018-10-24 21:10:35,867 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5b86fe742/f3af67d889ab4f108e371ec7916f018d/FLAG0587e9bad [2018-10-24 21:10:35,886 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5b86fe742/f3af67d889ab4f108e371ec7916f018d [2018-10-24 21:10:35,901 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:10:35,902 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:10:35,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:10:35,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:10:35,908 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:10:35,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:10:35" (1/1) ... [2018-10-24 21:10:35,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20bf5984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:10:35, skipping insertion in model container [2018-10-24 21:10:35,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:10:35" (1/1) ... [2018-10-24 21:10:35,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:10:35,995 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:10:36,608 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:10:36,616 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:10:36,825 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:10:36,846 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:10:36,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:10:36 WrapperNode [2018-10-24 21:10:36,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:10:36,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:10:36,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:10:36,848 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:10:36,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:10:36" (1/1) ... [2018-10-24 21:10:36,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:10:36" (1/1) ... [2018-10-24 21:10:37,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:10:37,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:10:37,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:10:37,174 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:10:37,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:10:36" (1/1) ... [2018-10-24 21:10:37,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:10:36" (1/1) ... [2018-10-24 21:10:37,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:10:36" (1/1) ... [2018-10-24 21:10:37,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:10:36" (1/1) ... [2018-10-24 21:10:37,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:10:36" (1/1) ... [2018-10-24 21:10:37,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:10:36" (1/1) ... [2018-10-24 21:10:37,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:10:36" (1/1) ... [2018-10-24 21:10:37,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:10:37,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:10:37,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:10:37,319 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:10:37,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:10:36" (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 [2018-10-24 21:10:37,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:10:37,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:10:37,394 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:10:37,395 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:10:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:10:37,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:10:37,395 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:10:37,395 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:10:42,007 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:10:42,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:10:42 BoogieIcfgContainer [2018-10-24 21:10:42,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:10:42,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:10:42,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:10:42,013 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:10:42,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:10:35" (1/3) ... [2018-10-24 21:10:42,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2cd0eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:10:42, skipping insertion in model container [2018-10-24 21:10:42,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:10:36" (2/3) ... [2018-10-24 21:10:42,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2cd0eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:10:42, skipping insertion in model container [2018-10-24 21:10:42,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:10:42" (3/3) ... [2018-10-24 21:10:42,017 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label28_true-unreach-call.c [2018-10-24 21:10:42,026 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:10:42,034 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:10:42,052 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:10:42,094 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:10:42,095 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:10:42,095 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:10:42,095 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:10:42,095 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:10:42,095 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:10:42,096 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:10:42,096 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:10:42,130 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-24 21:10:42,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-10-24 21:10:42,140 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:10:42,141 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] [2018-10-24 21:10:42,144 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:10:42,150 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:10:42,151 INFO L82 PathProgramCache]: Analyzing trace with hash -718311439, now seen corresponding path program 1 times [2018-10-24 21:10:42,154 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:10:42,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:10:42,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:10:42,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:10:42,211 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:10:42,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:10:42,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:10:42,615 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:10:42,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:10:42,616 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:10:42,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:10:42,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:10:42,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:10:42,642 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-10-24 21:10:46,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:10:46,218 INFO L93 Difference]: Finished difference Result 982 states and 1758 transitions. [2018-10-24 21:10:46,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:10:46,220 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 55 [2018-10-24 21:10:46,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:10:46,244 INFO L225 Difference]: With dead ends: 982 [2018-10-24 21:10:46,245 INFO L226 Difference]: Without dead ends: 683 [2018-10-24 21:10:46,254 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:10:46,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2018-10-24 21:10:46,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 683. [2018-10-24 21:10:46,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 683 states. [2018-10-24 21:10:46,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 1005 transitions. [2018-10-24 21:10:46,355 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 1005 transitions. Word has length 55 [2018-10-24 21:10:46,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:10:46,356 INFO L481 AbstractCegarLoop]: Abstraction has 683 states and 1005 transitions. [2018-10-24 21:10:46,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:10:46,357 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 1005 transitions. [2018-10-24 21:10:46,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-10-24 21:10:46,365 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:10:46,366 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:10:46,366 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:10:46,366 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:10:46,367 INFO L82 PathProgramCache]: Analyzing trace with hash -2084126164, now seen corresponding path program 1 times [2018-10-24 21:10:46,367 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:10:46,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:10:46,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:10:46,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:10:46,372 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:10:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:10:46,680 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:10:46,680 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:10:46,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:10:46,681 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:10:46,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:10:46,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:10:46,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:10:46,684 INFO L87 Difference]: Start difference. First operand 683 states and 1005 transitions. Second operand 4 states. [2018-10-24 21:10:50,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:10:50,801 INFO L93 Difference]: Finished difference Result 2512 states and 3858 transitions. [2018-10-24 21:10:50,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:10:50,806 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 129 [2018-10-24 21:10:50,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:10:50,824 INFO L225 Difference]: With dead ends: 2512 [2018-10-24 21:10:50,825 INFO L226 Difference]: Without dead ends: 1835 [2018-10-24 21:10:50,831 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:10:50,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1835 states. [2018-10-24 21:10:50,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1835 to 1820. [2018-10-24 21:10:50,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1820 states. [2018-10-24 21:10:50,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1820 states to 1820 states and 2585 transitions. [2018-10-24 21:10:50,942 INFO L78 Accepts]: Start accepts. Automaton has 1820 states and 2585 transitions. Word has length 129 [2018-10-24 21:10:50,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:10:50,943 INFO L481 AbstractCegarLoop]: Abstraction has 1820 states and 2585 transitions. [2018-10-24 21:10:50,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:10:50,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1820 states and 2585 transitions. [2018-10-24 21:10:50,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-10-24 21:10:50,952 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:10:50,952 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:10:50,952 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:10:50,953 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:10:50,953 INFO L82 PathProgramCache]: Analyzing trace with hash 643157075, now seen corresponding path program 1 times [2018-10-24 21:10:50,953 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:10:50,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:10:50,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:10:50,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:10:50,955 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:10:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:10:51,244 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:10:51,245 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:10:51,245 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:10:51,245 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:10:51,246 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:10:51,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:10:51,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:10:51,247 INFO L87 Difference]: Start difference. First operand 1820 states and 2585 transitions. Second operand 6 states. [2018-10-24 21:10:55,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:10:55,935 INFO L93 Difference]: Finished difference Result 6276 states and 9169 transitions. [2018-10-24 21:10:55,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:10:55,941 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2018-10-24 21:10:55,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:10:55,974 INFO L225 Difference]: With dead ends: 6276 [2018-10-24 21:10:55,974 INFO L226 Difference]: Without dead ends: 4462 [2018-10-24 21:10:55,993 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 21:10:56,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4462 states. [2018-10-24 21:10:56,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4462 to 4307. [2018-10-24 21:10:56,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4307 states. [2018-10-24 21:10:56,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4307 states to 4307 states and 5764 transitions. [2018-10-24 21:10:56,157 INFO L78 Accepts]: Start accepts. Automaton has 4307 states and 5764 transitions. Word has length 136 [2018-10-24 21:10:56,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:10:56,157 INFO L481 AbstractCegarLoop]: Abstraction has 4307 states and 5764 transitions. [2018-10-24 21:10:56,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:10:56,158 INFO L276 IsEmpty]: Start isEmpty. Operand 4307 states and 5764 transitions. [2018-10-24 21:10:56,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-10-24 21:10:56,170 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:10:56,171 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, 2, 2, 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] [2018-10-24 21:10:56,172 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:10:56,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:10:56,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1736454008, now seen corresponding path program 1 times [2018-10-24 21:10:56,173 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:10:56,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:10:56,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:10:56,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:10:56,174 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:10:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:10:56,861 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 21:10:57,144 WARN L179 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2018-10-24 21:10:57,268 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 96 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 21:10:57,269 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:10:57,269 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:10:57,270 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 211 with the following transitions: [2018-10-24 21:10:57,273 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [341], [343], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [538], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 21:10:57,350 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:10:57,351 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:10:59,248 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:11:00,659 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:11:00,661 INFO L272 AbstractInterpreter]: Visited 86 different actions 86 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-10-24 21:11:00,706 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:11:00,706 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:11:03,449 INFO L232 lantSequenceWeakener]: Weakened 202 states. On average, predicates are now at 73.77% of their original sizes. [2018-10-24 21:11:03,449 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:11:03,790 INFO L413 sIntCurrentIteration]: We have 209 unified AI predicates [2018-10-24 21:11:03,790 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:11:03,791 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:11:03,792 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2018-10-24 21:11:03,792 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:11:03,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 21:11:03,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 21:11:03,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 21:11:03,793 INFO L87 Difference]: Start difference. First operand 4307 states and 5764 transitions. Second operand 7 states. [2018-10-24 21:11:36,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:11:36,688 INFO L93 Difference]: Finished difference Result 8800 states and 11739 transitions. [2018-10-24 21:11:36,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:11:36,689 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 210 [2018-10-24 21:11:36,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:11:36,714 INFO L225 Difference]: With dead ends: 8800 [2018-10-24 21:11:36,715 INFO L226 Difference]: Without dead ends: 4499 [2018-10-24 21:11:36,732 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 210 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:11:36,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4499 states. [2018-10-24 21:11:36,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4499 to 4497. [2018-10-24 21:11:36,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4497 states. [2018-10-24 21:11:36,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4497 states to 4497 states and 5964 transitions. [2018-10-24 21:11:36,861 INFO L78 Accepts]: Start accepts. Automaton has 4497 states and 5964 transitions. Word has length 210 [2018-10-24 21:11:36,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:11:36,862 INFO L481 AbstractCegarLoop]: Abstraction has 4497 states and 5964 transitions. [2018-10-24 21:11:36,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 21:11:36,863 INFO L276 IsEmpty]: Start isEmpty. Operand 4497 states and 5964 transitions. [2018-10-24 21:11:36,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-10-24 21:11:36,873 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:11:36,873 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:11:36,874 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:11:36,874 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:11:36,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1439039131, now seen corresponding path program 1 times [2018-10-24 21:11:36,874 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:11:36,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:11:36,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:11:36,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:11:36,878 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:11:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:11:37,254 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-10-24 21:11:37,254 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:11:37,254 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:11:37,254 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 254 with the following transitions: [2018-10-24 21:11:37,255 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [341], [343], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [538], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 21:11:37,263 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:11:37,263 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:11:38,458 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:12:21,066 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 21:12:21,067 INFO L272 AbstractInterpreter]: Visited 126 different actions 858 times. Merged at 7 different actions 44 times. Widened at 1 different actions 2 times. Found 7 fixpoints after 2 different actions. Largest state had 28 variables. [2018-10-24 21:12:21,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:12:21,088 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 21:12:21,088 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:12:21,088 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 [2018-10-24 21:12:21,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:12:21,098 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 21:12:21,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:12:21,210 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 21:12:21,715 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 175 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:12:21,715 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 21:12:22,036 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-24 21:12:22,370 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 175 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:12:22,395 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-24 21:12:22,396 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2018-10-24 21:12:22,396 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-24 21:12:22,397 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-24 21:12:22,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-24 21:12:22,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-10-24 21:12:22,398 INFO L87 Difference]: Start difference. First operand 4497 states and 5964 transitions. Second operand 10 states. [2018-10-24 21:12:22,776 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-24 21:12:39,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:12:39,749 INFO L93 Difference]: Finished difference Result 22663 states and 33283 transitions. [2018-10-24 21:12:39,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-10-24 21:12:39,759 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 253 [2018-10-24 21:12:39,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:12:39,848 INFO L225 Difference]: With dead ends: 22663 [2018-10-24 21:12:39,849 INFO L226 Difference]: Without dead ends: 18362 [2018-10-24 21:12:39,906 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 527 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1347 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=758, Invalid=3274, Unknown=0, NotChecked=0, Total=4032 [2018-10-24 21:12:39,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18362 states. [2018-10-24 21:12:40,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18362 to 17715. [2018-10-24 21:12:40,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17715 states. [2018-10-24 21:12:40,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17715 states to 17715 states and 22769 transitions. [2018-10-24 21:12:40,342 INFO L78 Accepts]: Start accepts. Automaton has 17715 states and 22769 transitions. Word has length 253 [2018-10-24 21:12:40,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:12:40,343 INFO L481 AbstractCegarLoop]: Abstraction has 17715 states and 22769 transitions. [2018-10-24 21:12:40,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-24 21:12:40,343 INFO L276 IsEmpty]: Start isEmpty. Operand 17715 states and 22769 transitions. [2018-10-24 21:12:40,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2018-10-24 21:12:40,365 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:12:40,365 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:12:40,366 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:12:40,366 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:12:40,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1247546700, now seen corresponding path program 1 times [2018-10-24 21:12:40,366 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:12:40,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:12:40,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:12:40,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:12:40,371 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:12:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:12:40,652 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2018-10-24 21:12:40,653 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:12:40,653 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 21:12:40,653 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:12:40,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 21:12:40,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 21:12:40,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:12:40,655 INFO L87 Difference]: Start difference. First operand 17715 states and 22769 transitions. Second operand 3 states. [2018-10-24 21:12:42,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:12:42,819 INFO L93 Difference]: Finished difference Result 39451 states and 51895 transitions. [2018-10-24 21:12:42,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 21:12:42,823 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 295 [2018-10-24 21:12:42,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:12:42,906 INFO L225 Difference]: With dead ends: 39451 [2018-10-24 21:12:42,906 INFO L226 Difference]: Without dead ends: 22121 [2018-10-24 21:12:42,947 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 [2018-10-24 21:12:42,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22121 states. [2018-10-24 21:12:43,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22121 to 21727. [2018-10-24 21:12:43,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21727 states. [2018-10-24 21:12:43,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21727 states to 21727 states and 27956 transitions. [2018-10-24 21:12:43,376 INFO L78 Accepts]: Start accepts. Automaton has 21727 states and 27956 transitions. Word has length 295 [2018-10-24 21:12:43,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:12:43,377 INFO L481 AbstractCegarLoop]: Abstraction has 21727 states and 27956 transitions. [2018-10-24 21:12:43,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 21:12:43,377 INFO L276 IsEmpty]: Start isEmpty. Operand 21727 states and 27956 transitions. [2018-10-24 21:12:43,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2018-10-24 21:12:43,410 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:12:43,410 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:12:43,410 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:12:43,411 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:12:43,411 INFO L82 PathProgramCache]: Analyzing trace with hash 735034412, now seen corresponding path program 1 times [2018-10-24 21:12:43,411 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:12:43,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:12:43,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:12:43,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:12:43,412 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:12:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:12:44,527 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-24 21:12:44,818 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 21:12:45,297 WARN L179 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-10-24 21:12:45,873 WARN L179 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2018-10-24 21:12:46,432 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 31 [2018-10-24 21:12:46,733 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 224 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:12:46,734 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:12:46,734 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:12:46,734 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 337 with the following transitions: [2018-10-24 21:12:46,734 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [341], [343], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [777], [781], [785], [789], [793], [797], [808], [812], [816], [820], [824], [828], [832], [843], [847], [851], [862], [866], [870], [873], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 21:12:46,740 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:12:46,740 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:12:53,799 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:13:13,965 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:13:13,965 INFO L272 AbstractInterpreter]: Visited 159 different actions 464 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-24 21:13:13,975 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:13:13,975 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:13:17,755 INFO L232 lantSequenceWeakener]: Weakened 47 states. On average, predicates are now at 77.15% of their original sizes. [2018-10-24 21:13:17,755 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 21:14:28,894 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:14:28,900 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:14:28,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:14:28 BoogieIcfgContainer [2018-10-24 21:14:28,900 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:14:28,901 INFO L168 Benchmark]: Toolchain (without parser) took 233000.05 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 2.8 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-24 21:14:28,902 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:14:28,903 INFO L168 Benchmark]: CACSL2BoogieTranslator took 943.17 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-10-24 21:14:28,905 INFO L168 Benchmark]: Boogie Procedure Inliner took 325.23 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 771.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -862.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2018-10-24 21:14:28,906 INFO L168 Benchmark]: Boogie Preprocessor took 145.67 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:14:28,906 INFO L168 Benchmark]: RCFGBuilder took 4689.31 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 175.8 MB). Peak memory consumption was 175.8 MB. Max. memory is 7.1 GB. [2018-10-24 21:14:28,909 INFO L168 Benchmark]: TraceAbstraction took 226890.92 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 2.8 GB in the end (delta: -699.9 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-24 21:14:28,917 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 943.17 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 325.23 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 771.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -862.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 145.67 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4689.31 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 175.8 MB). Peak memory consumption was 175.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 226890.92 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 2.8 GB in the end (delta: -699.9 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 150]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 150). Cancelled while BasicCegarLoop was analyzing trace of length 337 with TraceHistMax 3,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 9 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 226.8s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 65.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1540 SDtfs, 6807 SDslu, 1621 SDs, 0 SdLazy, 16263 SolverSat, 2765 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 46.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 824 GetRequests, 744 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1352 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21727occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 74.5s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.996226268285092 AbsIntWeakeningRatio, 0.10477941176470588 AbsIntAvgWeakeningVarsNumRemoved, 1143.1507352941176 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 1213 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 1331 NumberOfCodeBlocks, 1331 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1576 ConstructedInterpolants, 0 QuantifiedInterpolants, 1202924 SizeOfPredicates, 0 NumberOfNonLiveVariables, 458 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 829/1001 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown