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_label08_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 12:29:21,948 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 12:29:21,950 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 12:29:21,963 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 12:29:21,963 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 12:29:21,965 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 12:29:21,966 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 12:29:21,968 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 12:29:21,970 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 12:29:21,971 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 12:29:21,973 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 12:29:21,973 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 12:29:21,974 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 12:29:21,975 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 12:29:21,976 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 12:29:21,977 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 12:29:21,986 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 12:29:21,990 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 12:29:21,993 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 12:29:21,994 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 12:29:21,998 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 12:29:22,000 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 12:29:22,005 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 12:29:22,006 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 12:29:22,006 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 12:29:22,007 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 12:29:22,008 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 12:29:22,008 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 12:29:22,009 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 12:29:22,010 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 12:29:22,010 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 12:29:22,011 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 12:29:22,011 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 12:29:22,011 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 12:29:22,012 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 12:29:22,012 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 12:29:22,013 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 12:29:22,027 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 12:29:22,027 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 12:29:22,028 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 12:29:22,028 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 12:29:22,028 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 12:29:22,029 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 12:29:22,029 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 12:29:22,029 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 12:29:22,029 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 12:29:22,029 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 12:29:22,029 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 12:29:22,030 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 12:29:22,030 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 12:29:22,030 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 12:29:22,031 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 12:29:22,031 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 12:29:22,031 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 12:29:22,031 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 12:29:22,031 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 12:29:22,032 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 12:29:22,032 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 12:29:22,032 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 12:29:22,032 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 12:29:22,032 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 12:29:22,033 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 12:29:22,033 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 12:29:22,033 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 12:29:22,033 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 12:29:22,033 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 12:29:22,034 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 12:29:22,034 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 12:29:22,034 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 12:29:22,034 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 12:29:22,034 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 12:29:22,080 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 12:29:22,095 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 12:29:22,101 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 12:29:22,103 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 12:29:22,104 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 12:29:22,104 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label08_true-unreach-call.c [2018-09-18 12:29:22,462 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70faa9680/3f9d2e3714cd4fa08f9e63aed4684e16/FLAGe5c6387dd [2018-09-18 12:29:23,055 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 12:29:23,058 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label08_true-unreach-call.c [2018-09-18 12:29:23,106 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70faa9680/3f9d2e3714cd4fa08f9e63aed4684e16/FLAGe5c6387dd [2018-09-18 12:29:23,128 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70faa9680/3f9d2e3714cd4fa08f9e63aed4684e16 [2018-09-18 12:29:23,140 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 12:29:23,146 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 12:29:23,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 12:29:23,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 12:29:23,156 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 12:29:23,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:29:23" (1/1) ... [2018-09-18 12:29:23,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@560f8b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:29:23, skipping insertion in model container [2018-09-18 12:29:23,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:29:23" (1/1) ... [2018-09-18 12:29:23,175 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 12:29:25,166 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:29:25,185 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 12:29:26,325 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:29:26,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:29:26 WrapperNode [2018-09-18 12:29:26,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 12:29:26,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 12:29:26,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 12:29:26,848 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 12:29:26,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:29:26" (1/1) ... [2018-09-18 12:29:27,027 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:29:26" (1/1) ... [2018-09-18 12:29:27,214 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 12:29:27,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 12:29:27,215 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 12:29:27,215 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 12:29:28,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:29:26" (1/1) ... [2018-09-18 12:29:28,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:29:26" (1/1) ... [2018-09-18 12:29:28,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:29:26" (1/1) ... [2018-09-18 12:29:28,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:29:26" (1/1) ... [2018-09-18 12:29:28,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:29:26" (1/1) ... [2018-09-18 12:29:28,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:29:26" (1/1) ... [2018-09-18 12:29:28,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:29:26" (1/1) ... [2018-09-18 12:29:28,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 12:29:28,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 12:29:28,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 12:29:28,938 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 12:29:28,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:29:26" (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 12:29:29,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 12:29:29,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 12:29:29,009 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-09-18 12:29:29,009 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-09-18 12:29:29,009 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-09-18 12:29:29,010 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-09-18 12:29:29,010 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-18 12:29:29,010 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-18 12:29:29,010 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 12:29:29,010 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 12:29:29,010 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 12:29:29,011 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 12:29:29,011 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 12:29:29,011 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 12:29:29,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 12:29:29,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 12:29:29,012 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 12:29:29,012 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 12:29:47,742 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 12:29:47,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:29:47 BoogieIcfgContainer [2018-09-18 12:29:47,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 12:29:47,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 12:29:47,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 12:29:47,748 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 12:29:47,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 12:29:23" (1/3) ... [2018-09-18 12:29:47,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a8c0dc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:29:47, skipping insertion in model container [2018-09-18 12:29:47,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:29:26" (2/3) ... [2018-09-18 12:29:47,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a8c0dc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:29:47, skipping insertion in model container [2018-09-18 12:29:47,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:29:47" (3/3) ... [2018-09-18 12:29:47,751 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label08_true-unreach-call.c [2018-09-18 12:29:47,760 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 12:29:47,769 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 12:29:47,835 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 12:29:47,835 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 12:29:47,836 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 12:29:47,836 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 12:29:47,836 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 12:29:47,836 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 12:29:47,836 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 12:29:47,836 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 12:29:47,837 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 12:29:47,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-09-18 12:29:47,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-18 12:29:47,898 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:29:47,902 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] [2018-09-18 12:29:47,903 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:29:47,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1067013884, now seen corresponding path program 1 times [2018-09-18 12:29:47,912 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:29:47,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:29:47,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:29:47,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:29:47,967 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:29:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:29:48,395 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:29:48,504 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 12:29:48,506 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:29:48,507 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 12:29:48,507 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:29:48,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:29:48,533 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:29:48,534 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 12:29:48,537 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-09-18 12:30:05,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:30:05,532 INFO L93 Difference]: Finished difference Result 5040 states and 9510 transitions. [2018-09-18 12:30:05,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:30:05,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2018-09-18 12:30:05,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:30:05,594 INFO L225 Difference]: With dead ends: 5040 [2018-09-18 12:30:05,596 INFO L226 Difference]: Without dead ends: 3260 [2018-09-18 12:30:05,611 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 12:30:05,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3260 states. [2018-09-18 12:30:05,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3260 to 3207. [2018-09-18 12:30:05,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3207 states. [2018-09-18 12:30:05,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3207 states to 3207 states and 6013 transitions. [2018-09-18 12:30:05,840 INFO L78 Accepts]: Start accepts. Automaton has 3207 states and 6013 transitions. Word has length 44 [2018-09-18 12:30:05,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:30:05,841 INFO L480 AbstractCegarLoop]: Abstraction has 3207 states and 6013 transitions. [2018-09-18 12:30:05,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 12:30:05,841 INFO L276 IsEmpty]: Start isEmpty. Operand 3207 states and 6013 transitions. [2018-09-18 12:30:05,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-09-18 12:30:05,853 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:30:05,854 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:05,854 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:30:05,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1389260955, now seen corresponding path program 1 times [2018-09-18 12:30:05,855 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:30:05,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:30:05,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:30:05,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:30:05,856 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:30:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:30:06,480 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:30:06,481 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:30:06,481 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:30:06,481 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:30:06,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:30:06,483 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:30:06,484 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:30:06,484 INFO L87 Difference]: Start difference. First operand 3207 states and 6013 transitions. Second operand 6 states. [2018-09-18 12:30:59,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:30:59,252 INFO L93 Difference]: Finished difference Result 12372 states and 23782 transitions. [2018-09-18 12:30:59,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-18 12:30:59,253 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 120 [2018-09-18 12:30:59,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:30:59,319 INFO L225 Difference]: With dead ends: 12372 [2018-09-18 12:30:59,320 INFO L226 Difference]: Without dead ends: 9171 [2018-09-18 12:30:59,343 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-18 12:30:59,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9171 states. [2018-09-18 12:30:59,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9171 to 9108. [2018-09-18 12:30:59,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9108 states. [2018-09-18 12:30:59,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9108 states to 9108 states and 15115 transitions. [2018-09-18 12:30:59,626 INFO L78 Accepts]: Start accepts. Automaton has 9108 states and 15115 transitions. Word has length 120 [2018-09-18 12:30:59,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:30:59,627 INFO L480 AbstractCegarLoop]: Abstraction has 9108 states and 15115 transitions. [2018-09-18 12:30:59,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:30:59,627 INFO L276 IsEmpty]: Start isEmpty. Operand 9108 states and 15115 transitions. [2018-09-18 12:30:59,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-09-18 12:30:59,640 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:30:59,640 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:59,645 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:30:59,645 INFO L82 PathProgramCache]: Analyzing trace with hash 24499535, now seen corresponding path program 1 times [2018-09-18 12:30:59,645 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:30:59,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:30:59,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:30:59,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:30:59,648 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:30:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:31:00,150 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:31:00,151 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:31:00,151 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:31:00,151 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:31:00,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:31:00,152 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:31:00,152 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:31:00,152 INFO L87 Difference]: Start difference. First operand 9108 states and 15115 transitions. Second operand 6 states. [2018-09-18 12:31:26,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:31:26,665 INFO L93 Difference]: Finished difference Result 27863 states and 47182 transitions. [2018-09-18 12:31:26,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-18 12:31:26,668 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2018-09-18 12:31:26,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:31:26,767 INFO L225 Difference]: With dead ends: 27863 [2018-09-18 12:31:26,767 INFO L226 Difference]: Without dead ends: 18761 [2018-09-18 12:31:26,801 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:31:26,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18761 states. [2018-09-18 12:31:27,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18761 to 18321. [2018-09-18 12:31:27,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18321 states. [2018-09-18 12:31:27,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18321 states to 18321 states and 29621 transitions. [2018-09-18 12:31:27,297 INFO L78 Accepts]: Start accepts. Automaton has 18321 states and 29621 transitions. Word has length 126 [2018-09-18 12:31:27,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:31:27,297 INFO L480 AbstractCegarLoop]: Abstraction has 18321 states and 29621 transitions. [2018-09-18 12:31:27,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:31:27,297 INFO L276 IsEmpty]: Start isEmpty. Operand 18321 states and 29621 transitions. [2018-09-18 12:31:27,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-09-18 12:31:27,304 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:31:27,304 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 12:31:27,305 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:31:27,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1423102032, now seen corresponding path program 1 times [2018-09-18 12:31:27,305 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:31:27,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:31:27,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:31:27,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:31:27,313 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:31:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:31:27,631 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:31:27,992 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 74 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:31:27,992 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:31:27,992 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 12:31:28,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:31:28,002 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:31:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:31:28,110 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:31:28,369 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-09-18 12:31:28,370 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:31:28,830 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-09-18 12:31:28,864 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 12:31:28,864 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2018-09-18 12:31:28,865 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:31:28,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:31:28,866 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:31:28,866 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:31:28,867 INFO L87 Difference]: Start difference. First operand 18321 states and 29621 transitions. Second operand 3 states. [2018-09-18 12:31:44,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:31:44,267 INFO L93 Difference]: Finished difference Result 45410 states and 75464 transitions. [2018-09-18 12:31:44,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:31:44,273 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 243 [2018-09-18 12:31:44,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:31:44,432 INFO L225 Difference]: With dead ends: 45410 [2018-09-18 12:31:44,433 INFO L226 Difference]: Without dead ends: 27095 [2018-09-18 12:31:44,506 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 485 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:31:44,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27095 states. [2018-09-18 12:31:45,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27095 to 26992. [2018-09-18 12:31:45,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26992 states. [2018-09-18 12:31:45,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26992 states to 26992 states and 41698 transitions. [2018-09-18 12:31:45,387 INFO L78 Accepts]: Start accepts. Automaton has 26992 states and 41698 transitions. Word has length 243 [2018-09-18 12:31:45,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:31:45,388 INFO L480 AbstractCegarLoop]: Abstraction has 26992 states and 41698 transitions. [2018-09-18 12:31:45,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 12:31:45,388 INFO L276 IsEmpty]: Start isEmpty. Operand 26992 states and 41698 transitions. [2018-09-18 12:31:45,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2018-09-18 12:31:45,395 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:31:45,395 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:45,395 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:31:45,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1433236750, now seen corresponding path program 1 times [2018-09-18 12:31:45,396 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:31:45,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:31:45,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:31:45,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:31:45,397 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:31:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:31:46,179 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:31:46,180 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:31:46,180 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 12:31:46,180 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:31:46,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:31:46,181 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:31:46,182 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 12:31:46,182 INFO L87 Difference]: Start difference. First operand 26992 states and 41698 transitions. Second operand 5 states. [2018-09-18 12:32:14,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:32:14,834 INFO L93 Difference]: Finished difference Result 82662 states and 133247 transitions. [2018-09-18 12:32:14,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 12:32:14,835 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 246 [2018-09-18 12:32:14,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:32:15,058 INFO L225 Difference]: With dead ends: 82662 [2018-09-18 12:32:15,058 INFO L226 Difference]: Without dead ends: 55676 [2018-09-18 12:32:15,129 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:32:15,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55676 states. [2018-09-18 12:32:16,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55676 to 54598. [2018-09-18 12:32:16,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54598 states. [2018-09-18 12:32:16,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54598 states to 54598 states and 77058 transitions. [2018-09-18 12:32:16,834 INFO L78 Accepts]: Start accepts. Automaton has 54598 states and 77058 transitions. Word has length 246 [2018-09-18 12:32:16,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:32:16,835 INFO L480 AbstractCegarLoop]: Abstraction has 54598 states and 77058 transitions. [2018-09-18 12:32:16,835 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:32:16,835 INFO L276 IsEmpty]: Start isEmpty. Operand 54598 states and 77058 transitions. [2018-09-18 12:32:16,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2018-09-18 12:32:16,852 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:32:16,852 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:32:16,853 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:32:16,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1703385519, now seen corresponding path program 1 times [2018-09-18 12:32:16,853 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:32:16,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:32:16,854 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:32:16,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:32:16,855 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:32:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:32:17,172 WARN L178 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:32:17,602 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 74 proven. 94 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:32:17,602 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:32:17,603 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 12:32:17,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:32:17,619 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:32:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:32:17,744 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:32:18,194 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-09-18 12:32:18,194 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:32:18,487 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 74 proven. 94 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:32:18,508 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 12:32:18,509 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-18 12:32:18,509 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:32:18,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:32:18,510 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:32:18,510 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-18 12:32:18,511 INFO L87 Difference]: Start difference. First operand 54598 states and 77058 transitions. Second operand 5 states. [2018-09-18 12:32:43,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:32:43,894 INFO L93 Difference]: Finished difference Result 164345 states and 254022 transitions. [2018-09-18 12:32:43,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 12:32:43,895 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 345 [2018-09-18 12:32:43,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:32:44,319 INFO L225 Difference]: With dead ends: 164345 [2018-09-18 12:32:44,320 INFO L226 Difference]: Without dead ends: 109753 [2018-09-18 12:32:44,479 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 699 GetRequests, 684 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 12:32:44,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109753 states. [2018-09-18 12:32:46,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109753 to 108694. [2018-09-18 12:32:46,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108694 states. [2018-09-18 12:32:46,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108694 states to 108694 states and 160391 transitions. [2018-09-18 12:32:46,751 INFO L78 Accepts]: Start accepts. Automaton has 108694 states and 160391 transitions. Word has length 345 [2018-09-18 12:32:46,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:32:46,752 INFO L480 AbstractCegarLoop]: Abstraction has 108694 states and 160391 transitions. [2018-09-18 12:32:46,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:32:46,752 INFO L276 IsEmpty]: Start isEmpty. Operand 108694 states and 160391 transitions. [2018-09-18 12:32:46,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2018-09-18 12:32:46,789 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:32:46,790 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:32:46,790 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:32:46,790 INFO L82 PathProgramCache]: Analyzing trace with hash 128008153, now seen corresponding path program 1 times [2018-09-18 12:32:46,790 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:32:46,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:32:46,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:32:46,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:32:46,792 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:32:47,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:32:48,282 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 279 proven. 135 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2018-09-18 12:32:48,283 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:32:48,283 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 12:32:48,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:32:48,299 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:32:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:32:48,460 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:32:48,870 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 508 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-09-18 12:32:48,870 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:32:49,201 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 279 proven. 135 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2018-09-18 12:32:49,221 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:32:49,221 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 12:32:49,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:32:49,246 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:32:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:32:49,595 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:32:49,845 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 508 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-09-18 12:32:49,846 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:32:50,500 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 279 proven. 135 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2018-09-18 12:32:50,502 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:32:50,503 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-18 12:32:50,503 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:32:50,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 12:32:50,504 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 12:32:50,505 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-18 12:32:50,505 INFO L87 Difference]: Start difference. First operand 108694 states and 160391 transitions. Second operand 9 states. Received shutdown request... [2018-09-18 12:33:16,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-18 12:33:16,847 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 12:33:16,852 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 12:33:16,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 12:33:16 BoogieIcfgContainer [2018-09-18 12:33:16,852 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 12:33:16,853 INFO L168 Benchmark]: Toolchain (without parser) took 233713.04 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -483.1 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-09-18 12:33:16,854 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-09-18 12:33:16,855 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3700.23 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 185.1 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -110.3 MB). Peak memory consumption was 487.2 MB. Max. memory is 7.1 GB. [2018-09-18 12:33:16,856 INFO L168 Benchmark]: Boogie Procedure Inliner took 366.20 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 71.0 MB). Peak memory consumption was 71.0 MB. Max. memory is 7.1 GB. [2018-09-18 12:33:16,857 INFO L168 Benchmark]: Boogie Preprocessor took 1722.51 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 871.9 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -878.8 MB). Peak memory consumption was 128.8 MB. Max. memory is 7.1 GB. [2018-09-18 12:33:16,858 INFO L168 Benchmark]: RCFGBuilder took 18806.22 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 238.0 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 153.6 MB). Peak memory consumption was 995.6 MB. Max. memory is 7.1 GB. [2018-09-18 12:33:16,859 INFO L168 Benchmark]: TraceAbstraction took 209108.27 ms. Allocated memory was 2.8 GB in the beginning and 3.8 GB in the end (delta: 980.9 MB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 281.4 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-18 12:33:16,865 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3700.23 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 185.1 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -110.3 MB). Peak memory consumption was 487.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 366.20 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 71.0 MB). Peak memory consumption was 71.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1722.51 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 871.9 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -878.8 MB). Peak memory consumption was 128.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18806.22 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 238.0 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 153.6 MB). Peak memory consumption was 995.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209108.27 ms. Allocated memory was 2.8 GB in the beginning and 3.8 GB in the end (delta: 980.9 MB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 281.4 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: 127]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 127). Cancelled while BasicCegarLoop was constructing difference of abstraction (108694states) and FLOYD_HOARE automaton (currently 15 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (311557 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 209.0s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 193.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6496 SDtfs, 38360 SDslu, 5209 SDs, 0 SdLazy, 69309 SolverSat, 18406 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 167.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3523 GetRequests, 3455 SyntacticMatches, 11 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108694occurred 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: 5.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 2796 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 3419 NumberOfCodeBlocks, 3419 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 5130 ConstructedInterpolants, 0 QuantifiedInterpolants, 4994263 SizeOfPredicates, 6 NumberOfNonLiveVariables, 2653 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 3140/3802 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_label08_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_12-33-16-880.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label08_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_12-33-16-880.csv Completed graceful shutdown