java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label23_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 12:31:59,935 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 12:31:59,939 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 12:31:59,957 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 12:31:59,958 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 12:31:59,959 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 12:31:59,961 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 12:31:59,963 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 12:31:59,966 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 12:31:59,968 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 12:31:59,970 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 12:31:59,970 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 12:31:59,972 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 12:31:59,973 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 12:31:59,981 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 12:31:59,982 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 12:31:59,985 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 12:31:59,987 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 12:31:59,990 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 12:31:59,992 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 12:31:59,993 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 12:31:59,996 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 12:32:00,000 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 12:32:00,000 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 12:32:00,000 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 12:32:00,001 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 12:32:00,002 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 12:32:00,003 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 12:32:00,004 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 12:32:00,005 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 12:32:00,005 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 12:32:00,007 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 12:32:00,007 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 12:32:00,007 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 12:32:00,008 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 12:32:00,009 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 12:32:00,009 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-18 12:32:00,026 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 12:32:00,026 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 12:32:00,027 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 12:32:00,027 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 12:32:00,027 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 12:32:00,027 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 12:32:00,028 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 12:32:00,028 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 12:32:00,028 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 12:32:00,028 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 12:32:00,028 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 12:32:00,029 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 12:32:00,029 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 12:32:00,030 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 12:32:00,030 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 12:32:00,030 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 12:32:00,030 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 12:32:00,030 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 12:32:00,031 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 12:32:00,031 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 12:32:00,031 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 12:32:00,031 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 12:32:00,031 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 12:32:00,031 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 12:32:00,032 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 12:32:00,032 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 12:32:00,032 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 12:32:00,032 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 12:32:00,032 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 12:32:00,033 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 12:32:00,033 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 12:32:00,033 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 12:32:00,033 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 12:32:00,033 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 12:32:00,087 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 12:32:00,100 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 12:32:00,103 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 12:32:00,106 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 12:32:00,106 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 12:32:00,110 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label23_true-unreach-call.c [2018-09-18 12:32:00,455 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43161705f/259dac6f768345ddab809483d7d13552/FLAGb7d2dd277 [2018-09-18 12:32:01,026 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 12:32:01,028 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label23_true-unreach-call.c [2018-09-18 12:32:01,087 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43161705f/259dac6f768345ddab809483d7d13552/FLAGb7d2dd277 [2018-09-18 12:32:01,110 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43161705f/259dac6f768345ddab809483d7d13552 [2018-09-18 12:32:01,122 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 12:32:01,125 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 12:32:01,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 12:32:01,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 12:32:01,133 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 12:32:01,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:32:01" (1/1) ... [2018-09-18 12:32:01,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a5df79c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:01, skipping insertion in model container [2018-09-18 12:32:01,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:32:01" (1/1) ... [2018-09-18 12:32:01,151 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 12:32:03,145 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:32:03,164 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 12:32:04,149 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:32:04,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:04 WrapperNode [2018-09-18 12:32:04,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 12:32:04,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 12:32:04,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 12:32:04,992 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 12:32:05,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:04" (1/1) ... [2018-09-18 12:32:05,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:04" (1/1) ... [2018-09-18 12:32:06,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 12:32:06,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 12:32:06,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 12:32:06,495 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 12:32:06,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:04" (1/1) ... [2018-09-18 12:32:06,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:04" (1/1) ... [2018-09-18 12:32:06,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:04" (1/1) ... [2018-09-18 12:32:06,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:04" (1/1) ... [2018-09-18 12:32:07,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:04" (1/1) ... [2018-09-18 12:32:07,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:04" (1/1) ... [2018-09-18 12:32:07,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:04" (1/1) ... [2018-09-18 12:32:07,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 12:32:07,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 12:32:07,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 12:32:07,344 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 12:32:07,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 12:32:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 12:32:07,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 12:32:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-09-18 12:32:07,418 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-09-18 12:32:07,418 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-09-18 12:32:07,419 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-09-18 12:32:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-18 12:32:07,419 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-18 12:32:07,419 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 12:32:07,419 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 12:32:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 12:32:07,420 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 12:32:07,420 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 12:32:07,420 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 12:32:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 12:32:07,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 12:32:07,422 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 12:32:07,422 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 12:32:25,082 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 12:32:25,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:32:25 BoogieIcfgContainer [2018-09-18 12:32:25,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 12:32:25,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 12:32:25,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 12:32:25,088 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 12:32:25,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 12:32:01" (1/3) ... [2018-09-18 12:32:25,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23adbc94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:32:25, skipping insertion in model container [2018-09-18 12:32:25,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:32:04" (2/3) ... [2018-09-18 12:32:25,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23adbc94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:32:25, skipping insertion in model container [2018-09-18 12:32:25,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:32:25" (3/3) ... [2018-09-18 12:32:25,092 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label23_true-unreach-call.c [2018-09-18 12:32:25,102 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 12:32:25,114 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 12:32:25,181 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 12:32:25,182 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 12:32:25,182 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 12:32:25,182 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 12:32:25,182 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 12:32:25,183 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 12:32:25,183 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 12:32:25,183 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 12:32:25,183 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 12:32:25,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-09-18 12:32:25,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-09-18 12:32:25,244 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:32:25,245 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:32:25,246 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:32:25,250 INFO L82 PathProgramCache]: Analyzing trace with hash -11956822, now seen corresponding path program 1 times [2018-09-18 12:32:25,253 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:32:25,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:32:25,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:32:25,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:32:25,301 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:32:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:32:25,761 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:32:25,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:32:25,880 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:32:25,880 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 12:32:25,880 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:32:25,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:32:25,902 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:32:25,903 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 12:32:25,906 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-09-18 12:32:40,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:32:40,363 INFO L93 Difference]: Finished difference Result 4999 states and 9420 transitions. [2018-09-18 12:32:40,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:32:40,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2018-09-18 12:32:40,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:32:40,414 INFO L225 Difference]: With dead ends: 4999 [2018-09-18 12:32:40,414 INFO L226 Difference]: Without dead ends: 3219 [2018-09-18 12:32:40,428 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 12:32:40,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2018-09-18 12:32:40,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 3215. [2018-09-18 12:32:40,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-09-18 12:32:40,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5845 transitions. [2018-09-18 12:32:40,638 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5845 transitions. Word has length 59 [2018-09-18 12:32:40,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:32:40,638 INFO L480 AbstractCegarLoop]: Abstraction has 3215 states and 5845 transitions. [2018-09-18 12:32:40,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 12:32:40,639 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5845 transitions. [2018-09-18 12:32:40,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-09-18 12:32:40,647 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:32:40,647 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:32:40,647 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:32:40,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1729747758, now seen corresponding path program 1 times [2018-09-18 12:32:40,648 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:32:40,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:32:40,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:32:40,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:32:40,650 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:32:40,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:32:41,001 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:32:41,419 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:32:41,419 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:32:41,420 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:32:41,420 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:32:41,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:32:41,423 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:32:41,423 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:32:41,424 INFO L87 Difference]: Start difference. First operand 3215 states and 5845 transitions. Second operand 6 states. [2018-09-18 12:33:09,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:33:09,123 INFO L93 Difference]: Finished difference Result 9343 states and 16923 transitions. [2018-09-18 12:33:09,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 12:33:09,133 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-09-18 12:33:09,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:33:09,171 INFO L225 Difference]: With dead ends: 9343 [2018-09-18 12:33:09,171 INFO L226 Difference]: Without dead ends: 6134 [2018-09-18 12:33:09,183 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:33:09,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6134 states. [2018-09-18 12:33:09,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6134 to 6093. [2018-09-18 12:33:09,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6093 states. [2018-09-18 12:33:09,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6093 states to 6093 states and 9626 transitions. [2018-09-18 12:33:09,362 INFO L78 Accepts]: Start accepts. Automaton has 6093 states and 9626 transitions. Word has length 131 [2018-09-18 12:33:09,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:33:09,362 INFO L480 AbstractCegarLoop]: Abstraction has 6093 states and 9626 transitions. [2018-09-18 12:33:09,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:33:09,363 INFO L276 IsEmpty]: Start isEmpty. Operand 6093 states and 9626 transitions. [2018-09-18 12:33:09,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-09-18 12:33:09,378 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:33:09,379 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:33:09,379 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:33:09,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1793375852, now seen corresponding path program 1 times [2018-09-18 12:33:09,380 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:33:09,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:33:09,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:33:09,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:33:09,381 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:33:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:33:09,723 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:33:09,723 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:33:09,723 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:33:09,723 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:33:09,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:33:09,724 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:33:09,725 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:33:09,725 INFO L87 Difference]: Start difference. First operand 6093 states and 9626 transitions. Second operand 6 states. [2018-09-18 12:33:52,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:33:52,238 INFO L93 Difference]: Finished difference Result 24260 states and 39731 transitions. [2018-09-18 12:33:52,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-18 12:33:52,239 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-09-18 12:33:52,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:33:52,340 INFO L225 Difference]: With dead ends: 24260 [2018-09-18 12:33:52,341 INFO L226 Difference]: Without dead ends: 18173 [2018-09-18 12:33:52,376 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-18 12:33:52,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18173 states. [2018-09-18 12:33:52,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18173 to 18097. [2018-09-18 12:33:52,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18097 states. [2018-09-18 12:33:52,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18097 states to 18097 states and 25642 transitions. [2018-09-18 12:33:52,833 INFO L78 Accepts]: Start accepts. Automaton has 18097 states and 25642 transitions. Word has length 149 [2018-09-18 12:33:52,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:33:52,833 INFO L480 AbstractCegarLoop]: Abstraction has 18097 states and 25642 transitions. [2018-09-18 12:33:52,833 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:33:52,834 INFO L276 IsEmpty]: Start isEmpty. Operand 18097 states and 25642 transitions. [2018-09-18 12:33:52,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-09-18 12:33:52,840 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:33:52,840 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:33:52,840 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:33:52,841 INFO L82 PathProgramCache]: Analyzing trace with hash -808835625, now seen corresponding path program 1 times [2018-09-18 12:33:52,841 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:33:52,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:33:52,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:33:52,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:33:52,842 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:33:52,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:33:53,234 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:33:53,234 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:33:53,234 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 12:33:53,235 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:33:53,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:33:53,238 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:33:53,239 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 12:33:53,239 INFO L87 Difference]: Start difference. First operand 18097 states and 25642 transitions. Second operand 5 states. [2018-09-18 12:34:21,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:34:21,125 INFO L93 Difference]: Finished difference Result 56359 states and 85060 transitions. [2018-09-18 12:34:21,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 12:34:21,127 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 194 [2018-09-18 12:34:21,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:34:21,310 INFO L225 Difference]: With dead ends: 56359 [2018-09-18 12:34:21,310 INFO L226 Difference]: Without dead ends: 38268 [2018-09-18 12:34:21,380 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:34:21,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38268 states. [2018-09-18 12:34:22,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38268 to 37211. [2018-09-18 12:34:22,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37211 states. [2018-09-18 12:34:22,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37211 states to 37211 states and 50505 transitions. [2018-09-18 12:34:22,696 INFO L78 Accepts]: Start accepts. Automaton has 37211 states and 50505 transitions. Word has length 194 [2018-09-18 12:34:22,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:34:22,696 INFO L480 AbstractCegarLoop]: Abstraction has 37211 states and 50505 transitions. [2018-09-18 12:34:22,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:34:22,697 INFO L276 IsEmpty]: Start isEmpty. Operand 37211 states and 50505 transitions. [2018-09-18 12:34:22,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-09-18 12:34:22,706 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:34:22,707 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:34:22,707 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:34:22,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1152839494, now seen corresponding path program 1 times [2018-09-18 12:34:22,708 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:34:22,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:34:22,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:34:22,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:34:22,710 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:34:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:34:23,233 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 104 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:34:23,234 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:34:23,234 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-09-18 12:34:23,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:34:23,255 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:34:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:34:23,368 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:34:23,589 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-09-18 12:34:23,589 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:34:24,550 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 104 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:34:24,588 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 12:34:24,589 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 9 [2018-09-18 12:34:24,589 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:34:24,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:34:24,590 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:34:24,590 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:34:24,591 INFO L87 Difference]: Start difference. First operand 37211 states and 50505 transitions. Second operand 5 states. [2018-09-18 12:34:47,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:34:47,355 INFO L93 Difference]: Finished difference Result 112963 states and 161564 transitions. [2018-09-18 12:34:47,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 12:34:47,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 214 [2018-09-18 12:34:47,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:34:47,682 INFO L225 Difference]: With dead ends: 112963 [2018-09-18 12:34:47,682 INFO L226 Difference]: Without dead ends: 75758 [2018-09-18 12:34:47,828 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 426 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-09-18 12:34:47,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75758 states. [2018-09-18 12:34:49,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75758 to 74143. [2018-09-18 12:34:49,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74143 states. [2018-09-18 12:34:49,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74143 states to 74143 states and 98972 transitions. [2018-09-18 12:34:49,546 INFO L78 Accepts]: Start accepts. Automaton has 74143 states and 98972 transitions. Word has length 214 [2018-09-18 12:34:49,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:34:49,549 INFO L480 AbstractCegarLoop]: Abstraction has 74143 states and 98972 transitions. [2018-09-18 12:34:49,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:34:49,549 INFO L276 IsEmpty]: Start isEmpty. Operand 74143 states and 98972 transitions. [2018-09-18 12:34:49,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2018-09-18 12:34:49,556 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:34:49,557 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:34:49,557 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:34:49,557 INFO L82 PathProgramCache]: Analyzing trace with hash -255493648, now seen corresponding path program 1 times [2018-09-18 12:34:49,558 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:34:49,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:34:49,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:34:49,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:34:49,559 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:34:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:34:49,830 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:34:50,221 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 104 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:34:50,221 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:34:50,221 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:34:50,238 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:34:50,238 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:34:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:34:50,333 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:34:50,783 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-09-18 12:34:50,783 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:34:50,992 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 104 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:34:51,014 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 12:34:51,016 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-18 12:34:51,016 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:34:51,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:34:51,018 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:34:51,018 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-18 12:34:51,024 INFO L87 Difference]: Start difference. First operand 74143 states and 98972 transitions. Second operand 5 states. [2018-09-18 12:35:14,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:35:14,820 INFO L93 Difference]: Finished difference Result 235141 states and 354546 transitions. [2018-09-18 12:35:14,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 12:35:14,821 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 230 [2018-09-18 12:35:14,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:35:15,448 INFO L225 Difference]: With dead ends: 235141 [2018-09-18 12:35:15,449 INFO L226 Difference]: Without dead ends: 161004 [2018-09-18 12:35:15,703 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 454 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-09-18 12:35:15,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161004 states. [2018-09-18 12:35:19,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161004 to 159208. [2018-09-18 12:35:19,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159208 states. [2018-09-18 12:35:19,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159208 states to 159208 states and 221680 transitions. [2018-09-18 12:35:19,979 INFO L78 Accepts]: Start accepts. Automaton has 159208 states and 221680 transitions. Word has length 230 [2018-09-18 12:35:19,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:35:19,980 INFO L480 AbstractCegarLoop]: Abstraction has 159208 states and 221680 transitions. [2018-09-18 12:35:19,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:35:19,980 INFO L276 IsEmpty]: Start isEmpty. Operand 159208 states and 221680 transitions. [2018-09-18 12:35:20,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2018-09-18 12:35:20,004 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:35:20,005 INFO L376 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:35:20,005 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:35:20,005 INFO L82 PathProgramCache]: Analyzing trace with hash -69320967, now seen corresponding path program 1 times [2018-09-18 12:35:20,006 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:35:20,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:35:20,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:35:20,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:35:20,007 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:35:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:35:20,482 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 258 proven. 98 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2018-09-18 12:35:20,483 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:35:20,483 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:35:20,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:35:20,493 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:35:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:35:20,650 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:35:21,141 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 434 proven. 2 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-09-18 12:35:21,141 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:35:22,512 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 258 proven. 98 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2018-09-18 12:35:22,532 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:35:22,533 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:35:22,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:35:22,550 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:35:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:35:22,879 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:35:23,192 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 434 proven. 2 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-09-18 12:35:23,192 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:35:23,635 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 258 proven. 98 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2018-09-18 12:35:23,637 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:35:23,638 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-09-18 12:35:23,638 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:35:23,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 12:35:23,639 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 12:35:23,640 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-09-18 12:35:23,640 INFO L87 Difference]: Start difference. First operand 159208 states and 221680 transitions. Second operand 9 states. Received shutdown request... [2018-09-18 12:35:54,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-09-18 12:35:54,478 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 12:35:54,486 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 12:35:54,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 12:35:54 BoogieIcfgContainer [2018-09-18 12:35:54,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 12:35:54,487 INFO L168 Benchmark]: Toolchain (without parser) took 233365.13 ms. Allocated memory was 1.5 GB in the beginning and 3.3 GB in the end (delta: 1.8 GB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -25.6 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-09-18 12:35:54,489 INFO L168 Benchmark]: CDTParser took 0.27 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. [2018-09-18 12:35:54,489 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3865.39 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 216.0 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -133.0 MB). Peak memory consumption was 478.6 MB. Max. memory is 7.1 GB. [2018-09-18 12:35:54,490 INFO L168 Benchmark]: Boogie Procedure Inliner took 1502.19 ms. Allocated memory was 1.7 GB in the beginning and 2.5 GB in the end (delta: 812.1 MB). Free memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: -846.4 MB). Peak memory consumption was 164.3 MB. Max. memory is 7.1 GB. [2018-09-18 12:35:54,491 INFO L168 Benchmark]: Boogie Preprocessor took 848.98 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 95.2 MB). Peak memory consumption was 95.2 MB. Max. memory is 7.1 GB. [2018-09-18 12:35:54,492 INFO L168 Benchmark]: RCFGBuilder took 17739.90 ms. Allocated memory was 2.5 GB in the beginning and 2.9 GB in the end (delta: 312.5 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 59.2 MB). Peak memory consumption was 953.8 MB. Max. memory is 7.1 GB. [2018-09-18 12:35:54,493 INFO L168 Benchmark]: TraceAbstraction took 209401.70 ms. Allocated memory was 2.9 GB in the beginning and 3.3 GB in the end (delta: 482.9 MB). Free memory was 2.2 GB in the beginning and 1.4 GB in the end (delta: 799.4 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-18 12:35:54,498 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 3865.39 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 216.0 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -133.0 MB). Peak memory consumption was 478.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1502.19 ms. Allocated memory was 1.7 GB in the beginning and 2.5 GB in the end (delta: 812.1 MB). Free memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: -846.4 MB). Peak memory consumption was 164.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 848.98 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 95.2 MB). Peak memory consumption was 95.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17739.90 ms. Allocated memory was 2.5 GB in the beginning and 2.9 GB in the end (delta: 312.5 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 59.2 MB). Peak memory consumption was 953.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209401.70 ms. Allocated memory was 2.9 GB in the beginning and 3.3 GB in the end (delta: 482.9 MB). Free memory was 2.2 GB in the beginning and 1.4 GB in the end (delta: 799.4 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 172]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 172). Cancelled while BasicCegarLoop was constructing difference of abstraction (159208states) and FLOYD_HOARE automaton (currently 52 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (168316 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 209.3s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 191.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3909 SDtfs, 43736 SDslu, 5682 SDs, 0 SdLazy, 82256 SolverSat, 17364 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 161.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3098 GetRequests, 2989 SyntacticMatches, 9 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1047 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=159208occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 8.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 4589 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 7.5s InterpolantComputationTime, 2972 NumberOfCodeBlocks, 2972 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 4435 ConstructedInterpolants, 0 QuantifiedInterpolants, 3534021 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2410 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 15 InterpolantComputations, 6 PerfectInterpolantSequences, 3090/3654 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label23_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_12-35-54-516.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label23_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_12-35-54-516.csv Completed graceful shutdown