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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label01_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 00:56:57,118 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 00:56:57,120 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 00:56:57,133 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 00:56:57,133 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 00:56:57,134 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 00:56:57,135 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 00:56:57,137 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 00:56:57,139 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 00:56:57,140 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 00:56:57,141 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 00:56:57,142 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 00:56:57,142 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 00:56:57,143 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 00:56:57,145 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 00:56:57,145 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 00:56:57,146 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 00:56:57,148 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 00:56:57,151 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 00:56:57,152 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 00:56:57,154 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 00:56:57,155 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 00:56:57,157 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 00:56:57,158 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 00:56:57,158 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 00:56:57,159 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 00:56:57,160 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 00:56:57,161 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 00:56:57,162 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 00:56:57,166 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 00:56:57,166 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 00:56:57,167 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 00:56:57,167 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 00:56:57,167 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 00:56:57,170 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 00:56:57,171 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 00:56:57,172 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 00:56:57,198 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 00:56:57,199 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 00:56:57,199 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 00:56:57,200 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 00:56:57,200 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 00:56:57,201 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 00:56:57,201 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 00:56:57,201 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 00:56:57,201 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 00:56:57,201 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 00:56:57,202 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 00:56:57,202 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 00:56:57,203 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 00:56:57,204 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 00:56:57,204 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 00:56:57,204 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 00:56:57,204 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 00:56:57,204 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 00:56:57,205 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 00:56:57,205 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 00:56:57,205 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 00:56:57,205 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 00:56:57,205 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 00:56:57,206 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 00:56:57,207 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:56:57,207 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 00:56:57,207 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 00:56:57,207 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 00:56:57,207 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 00:56:57,208 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 00:56:57,208 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 00:56:57,208 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 00:56:57,208 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 00:56:57,208 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 00:56:57,271 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 00:56:57,292 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 00:56:57,296 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 00:56:57,298 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 00:56:57,298 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 00:56:57,299 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label01_true-unreach-call_false-termination.c [2018-11-07 00:56:57,365 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98e756f1a/87b87994d7744a189617ad61f757f5a2/FLAG8712ce49f [2018-11-07 00:56:57,991 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 00:56:57,991 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label01_true-unreach-call_false-termination.c [2018-11-07 00:56:58,010 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98e756f1a/87b87994d7744a189617ad61f757f5a2/FLAG8712ce49f [2018-11-07 00:56:58,028 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98e756f1a/87b87994d7744a189617ad61f757f5a2 [2018-11-07 00:56:58,039 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 00:56:58,040 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 00:56:58,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 00:56:58,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 00:56:58,045 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 00:56:58,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:56:58" (1/1) ... [2018-11-07 00:56:58,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f02a909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:58, skipping insertion in model container [2018-11-07 00:56:58,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:56:58" (1/1) ... [2018-11-07 00:56:58,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 00:56:58,129 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 00:56:58,613 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:56:58,619 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 00:56:58,772 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:56:58,794 INFO L193 MainTranslator]: Completed translation [2018-11-07 00:56:58,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:58 WrapperNode [2018-11-07 00:56:58,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 00:56:58,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 00:56:58,796 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 00:56:58,796 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 00:56:58,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:58" (1/1) ... [2018-11-07 00:56:58,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:58" (1/1) ... [2018-11-07 00:56:58,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 00:56:58,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 00:56:58,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 00:56:58,922 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 00:56:58,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:58" (1/1) ... [2018-11-07 00:56:58,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:58" (1/1) ... [2018-11-07 00:56:58,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:58" (1/1) ... [2018-11-07 00:56:58,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:58" (1/1) ... [2018-11-07 00:56:59,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:58" (1/1) ... [2018-11-07 00:56:59,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:58" (1/1) ... [2018-11-07 00:56:59,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:58" (1/1) ... [2018-11-07 00:56:59,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 00:56:59,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 00:56:59,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 00:56:59,049 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 00:56:59,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:58" (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 [2018-11-07 00:56:59,119 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 00:56:59,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 00:56:59,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 00:56:59,120 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 00:56:59,120 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 00:56:59,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 00:56:59,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 00:56:59,121 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 00:56:59,121 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 00:57:02,120 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 00:57:02,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:57:02 BoogieIcfgContainer [2018-11-07 00:57:02,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 00:57:02,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 00:57:02,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 00:57:02,127 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 00:57:02,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:56:58" (1/3) ... [2018-11-07 00:57:02,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d295980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:57:02, skipping insertion in model container [2018-11-07 00:57:02,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:58" (2/3) ... [2018-11-07 00:57:02,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d295980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:57:02, skipping insertion in model container [2018-11-07 00:57:02,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:57:02" (3/3) ... [2018-11-07 00:57:02,131 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label01_true-unreach-call_false-termination.c [2018-11-07 00:57:02,142 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 00:57:02,151 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 00:57:02,169 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 00:57:02,206 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 00:57:02,207 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 00:57:02,207 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 00:57:02,207 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 00:57:02,207 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 00:57:02,208 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 00:57:02,208 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 00:57:02,208 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 00:57:02,236 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-11-07 00:57:02,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-11-07 00:57:02,248 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:57:02,249 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:57:02,251 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:57:02,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:57:02,258 INFO L82 PathProgramCache]: Analyzing trace with hash 850595888, now seen corresponding path program 1 times [2018-11-07 00:57:02,261 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:57:02,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:57:02,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:57:02,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:57:02,315 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:57:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:57:02,883 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:57:03,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:57:03,049 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:57:03,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 00:57:03,050 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:57:03,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 00:57:03,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 00:57:03,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 00:57:03,077 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-11-07 00:57:04,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:57:04,859 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-11-07 00:57:04,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 00:57:04,862 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2018-11-07 00:57:04,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:57:04,883 INFO L225 Difference]: With dead ends: 550 [2018-11-07 00:57:04,883 INFO L226 Difference]: Without dead ends: 340 [2018-11-07 00:57:04,890 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 [2018-11-07 00:57:04,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-11-07 00:57:04,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-11-07 00:57:04,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-11-07 00:57:04,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 553 transitions. [2018-11-07 00:57:04,966 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 553 transitions. Word has length 98 [2018-11-07 00:57:04,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:57:04,967 INFO L480 AbstractCegarLoop]: Abstraction has 340 states and 553 transitions. [2018-11-07 00:57:04,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 00:57:04,968 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 553 transitions. [2018-11-07 00:57:04,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-11-07 00:57:04,974 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:57:04,975 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 00:57:04,975 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:57:04,975 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:57:04,976 INFO L82 PathProgramCache]: Analyzing trace with hash 900426319, now seen corresponding path program 1 times [2018-11-07 00:57:04,976 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:57:04,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:57:04,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:57:04,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:57:04,978 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:57:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:57:05,165 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:57:05,166 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:57:05,166 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:57:05,166 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:57:05,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:57:05,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:57:05,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:57:05,169 INFO L87 Difference]: Start difference. First operand 340 states and 553 transitions. Second operand 6 states. [2018-11-07 00:57:07,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:57:07,036 INFO L93 Difference]: Finished difference Result 1075 states and 1835 transitions. [2018-11-07 00:57:07,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:57:07,039 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2018-11-07 00:57:07,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:57:07,049 INFO L225 Difference]: With dead ends: 1075 [2018-11-07 00:57:07,050 INFO L226 Difference]: Without dead ends: 741 [2018-11-07 00:57:07,056 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 00:57:07,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2018-11-07 00:57:07,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 724. [2018-11-07 00:57:07,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2018-11-07 00:57:07,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1145 transitions. [2018-11-07 00:57:07,118 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1145 transitions. Word has length 109 [2018-11-07 00:57:07,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:57:07,118 INFO L480 AbstractCegarLoop]: Abstraction has 724 states and 1145 transitions. [2018-11-07 00:57:07,119 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:57:07,119 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1145 transitions. [2018-11-07 00:57:07,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-11-07 00:57:07,124 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:57:07,125 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 00:57:07,125 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:57:07,125 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:57:07,126 INFO L82 PathProgramCache]: Analyzing trace with hash -774778626, now seen corresponding path program 1 times [2018-11-07 00:57:07,126 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:57:07,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:57:07,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:57:07,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:57:07,128 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:57:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:57:07,507 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:57:07,507 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:57:07,507 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:57:07,508 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-11-07 00:57:07,511 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [421], [423], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-07 00:57:07,582 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:57:07,582 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:57:46,407 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:57:46,409 INFO L272 AbstractInterpreter]: Visited 102 different actions 167 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-07 00:57:46,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:57:46,423 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:57:56,505 INFO L227 lantSequenceWeakener]: Weakened 30 states. On average, predicates are now at 81.57% of their original sizes. [2018-11-07 00:57:56,505 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 00:59:02,631 INFO L415 sIntCurrentIteration]: We unified 133 AI predicates to 133 [2018-11-07 00:59:02,632 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 00:59:02,633 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 00:59:02,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2018-11-07 00:59:02,633 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:59:02,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-07 00:59:02,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-07 00:59:02,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2018-11-07 00:59:02,636 INFO L87 Difference]: Start difference. First operand 724 states and 1145 transitions. Second operand 19 states. Received shutdown request... [2018-11-07 01:01:21,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-07 01:01:21,793 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 01:01:21,799 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 01:01:21,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:01:21 BoogieIcfgContainer [2018-11-07 01:01:21,799 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 01:01:21,800 INFO L168 Benchmark]: Toolchain (without parser) took 263760.93 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 2.1 GB in the end (delta: -670.7 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-11-07 01:01:21,801 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-11-07 01:01:21,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 754.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-11-07 01:01:21,803 INFO L168 Benchmark]: Boogie Procedure Inliner took 125.89 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -821.6 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2018-11-07 01:01:21,804 INFO L168 Benchmark]: Boogie Preprocessor took 125.85 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2018-11-07 01:01:21,805 INFO L168 Benchmark]: RCFGBuilder took 3074.02 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 116.6 MB). Peak memory consumption was 116.6 MB. Max. memory is 7.1 GB. [2018-11-07 01:01:21,806 INFO L168 Benchmark]: TraceAbstraction took 259675.52 ms. Allocated memory was 2.3 GB in the beginning and 3.3 GB in the end (delta: 1.0 GB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: -675.1 kB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-11-07 01:01:21,812 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 754.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 125.89 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -821.6 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.85 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3074.02 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 116.6 MB). Peak memory consumption was 116.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 259675.52 ms. Allocated memory was 2.3 GB in the beginning and 3.3 GB in the end (delta: 1.0 GB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: -675.1 kB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 449]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 449). Cancelled while BasicCegarLoop was constructing difference of abstraction (724states) and FLOYD_HOARE automaton (currently 24 states, 19 states before enhancement),while ReachableStatesComputation was computing reachable states (269 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 259.6s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 142.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 238 SDtfs, 1230 SDslu, 182 SDs, 0 SdLazy, 1882 SolverSat, 433 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 50.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 160 GetRequests, 112 SyntacticMatches, 12 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 82.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=724occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 38.9s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9933457336721595 AbsIntWeakeningRatio, 0.2631578947368421 AbsIntAvgWeakeningVarsNumRemoved, 183.18796992481202 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 17 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 341 NumberOfCodeBlocks, 341 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 338 ConstructedInterpolants, 0 QuantifiedInterpolants, 86537 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 48/50 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown