java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label00_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 20:01:21,150 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 20:01:21,152 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 20:01:21,166 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 20:01:21,167 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 20:01:21,169 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 20:01:21,170 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 20:01:21,174 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 20:01:21,176 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 20:01:21,177 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 20:01:21,178 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 20:01:21,179 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 20:01:21,181 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 20:01:21,182 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 20:01:21,183 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 20:01:21,184 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 20:01:21,185 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 20:01:21,191 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 20:01:21,199 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 20:01:21,200 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 20:01:21,201 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 20:01:21,203 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 20:01:21,205 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 20:01:21,205 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 20:01:21,207 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 20:01:21,208 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 20:01:21,209 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 20:01:21,210 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 20:01:21,213 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 20:01:21,214 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 20:01:21,214 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 20:01:21,216 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 20:01:21,217 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 20:01:21,217 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 20:01:21,219 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 20:01:21,220 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 20:01:21,221 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 20:01:21,253 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 20:01:21,253 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 20:01:21,254 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 20:01:21,254 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 20:01:21,254 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 20:01:21,254 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 20:01:21,255 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 20:01:21,255 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 20:01:21,255 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 20:01:21,255 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 20:01:21,255 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 20:01:21,256 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 20:01:21,256 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 20:01:21,257 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 20:01:21,257 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 20:01:21,257 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 20:01:21,257 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 20:01:21,258 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 20:01:21,258 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 20:01:21,258 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 20:01:21,258 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 20:01:21,259 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 20:01:21,259 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 20:01:21,259 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 20:01:21,259 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 20:01:21,259 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 20:01:21,260 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 20:01:21,260 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 20:01:21,260 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 20:01:21,260 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 20:01:21,260 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 20:01:21,260 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 20:01:21,261 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 20:01:21,337 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 20:01:21,353 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 20:01:21,359 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 20:01:21,361 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 20:01:21,362 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 20:01:21,363 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label00_false-unreach-call.c [2018-07-23 20:01:21,758 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42d8e2916/696961e414e6434586d07bd184646390/FLAGe5220a124 [2018-07-23 20:01:22,234 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 20:01:22,235 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label00_false-unreach-call.c [2018-07-23 20:01:22,274 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42d8e2916/696961e414e6434586d07bd184646390/FLAGe5220a124 [2018-07-23 20:01:22,296 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42d8e2916/696961e414e6434586d07bd184646390 [2018-07-23 20:01:22,310 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 20:01:22,312 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 20:01:22,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 20:01:22,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 20:01:22,322 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 20:01:22,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 08:01:22" (1/1) ... [2018-07-23 20:01:22,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15bcc68a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:22, skipping insertion in model container [2018-07-23 20:01:22,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 08:01:22" (1/1) ... [2018-07-23 20:01:22,621 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 20:01:23,465 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 20:01:23,496 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 20:01:24,013 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 20:01:24,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:24 WrapperNode [2018-07-23 20:01:24,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 20:01:24,178 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 20:01:24,178 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 20:01:24,178 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 20:01:24,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:24" (1/1) ... [2018-07-23 20:01:24,274 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:24" (1/1) ... [2018-07-23 20:01:24,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 20:01:24,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 20:01:24,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 20:01:24,387 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 20:01:24,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:24" (1/1) ... [2018-07-23 20:01:24,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:24" (1/1) ... [2018-07-23 20:01:24,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:24" (1/1) ... [2018-07-23 20:01:24,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:24" (1/1) ... [2018-07-23 20:01:24,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:24" (1/1) ... [2018-07-23 20:01:25,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:24" (1/1) ... [2018-07-23 20:01:25,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:24" (1/1) ... [2018-07-23 20:01:25,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 20:01:25,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 20:01:25,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 20:01:25,076 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 20:01:25,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:24" (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 [2018-07-23 20:01:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 20:01:25,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 20:01:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 20:01:25,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 20:01:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 20:01:25,151 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 20:01:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-23 20:01:25,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-23 20:01:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-23 20:01:25,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-23 20:01:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-23 20:01:25,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-23 20:01:34,446 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 20:01:34,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 08:01:34 BoogieIcfgContainer [2018-07-23 20:01:34,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 20:01:34,448 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 20:01:34,448 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 20:01:34,452 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 20:01:34,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 08:01:22" (1/3) ... [2018-07-23 20:01:34,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3341d39c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 08:01:34, skipping insertion in model container [2018-07-23 20:01:34,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:01:24" (2/3) ... [2018-07-23 20:01:34,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3341d39c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 08:01:34, skipping insertion in model container [2018-07-23 20:01:34,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 08:01:34" (3/3) ... [2018-07-23 20:01:34,455 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label00_false-unreach-call.c [2018-07-23 20:01:34,465 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 20:01:34,475 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 20:01:34,542 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 20:01:34,543 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 20:01:34,543 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 20:01:34,543 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 20:01:34,543 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 20:01:34,544 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 20:01:34,544 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 20:01:34,544 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 20:01:34,544 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 20:01:34,597 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-07-23 20:01:34,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-07-23 20:01:34,604 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:01:34,606 INFO L353 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] [2018-07-23 20:01:34,606 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:01:34,611 INFO L82 PathProgramCache]: Analyzing trace with hash 2116299572, now seen corresponding path program 1 times [2018-07-23 20:01:34,614 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:01:34,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:01:34,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:01:34,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:01:34,659 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:01:34,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:01:34,997 WARN L169 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 20:01:35,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:01:35,041 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:01:35,042 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 20:01:35,042 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:01:35,048 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 20:01:35,060 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 20:01:35,060 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 20:01:35,062 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-07-23 20:01:41,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:01:41,751 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-07-23 20:01:41,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 20:01:41,754 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-07-23 20:01:41,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:01:41,789 INFO L225 Difference]: With dead ends: 2251 [2018-07-23 20:01:41,790 INFO L226 Difference]: Without dead ends: 1474 [2018-07-23 20:01:41,802 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 20:01:41,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-07-23 20:01:41,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-07-23 20:01:41,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-07-23 20:01:41,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2715 transitions. [2018-07-23 20:01:41,989 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2715 transitions. Word has length 26 [2018-07-23 20:01:41,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:01:41,990 INFO L471 AbstractCegarLoop]: Abstraction has 1474 states and 2715 transitions. [2018-07-23 20:01:41,990 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 20:01:41,990 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2715 transitions. [2018-07-23 20:01:41,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-07-23 20:01:41,998 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:01:41,999 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 20:01:41,999 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:01:42,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1138946135, now seen corresponding path program 1 times [2018-07-23 20:01:42,000 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:01:42,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:01:42,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:01:42,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:01:42,002 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:01:42,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:01:42,280 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:01:42,281 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:01:42,281 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 20:01:42,281 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:01:42,283 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 20:01:42,283 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 20:01:42,283 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 20:01:42,284 INFO L87 Difference]: Start difference. First operand 1474 states and 2715 transitions. Second operand 5 states. [2018-07-23 20:01:50,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:01:50,758 INFO L93 Difference]: Finished difference Result 4419 states and 8226 transitions. [2018-07-23 20:01:50,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 20:01:50,761 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2018-07-23 20:01:50,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:01:50,781 INFO L225 Difference]: With dead ends: 4419 [2018-07-23 20:01:50,782 INFO L226 Difference]: Without dead ends: 2951 [2018-07-23 20:01:50,787 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-23 20:01:50,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2018-07-23 20:01:50,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2925. [2018-07-23 20:01:50,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2925 states. [2018-07-23 20:01:50,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 4901 transitions. [2018-07-23 20:01:50,883 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 4901 transitions. Word has length 97 [2018-07-23 20:01:50,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:01:50,884 INFO L471 AbstractCegarLoop]: Abstraction has 2925 states and 4901 transitions. [2018-07-23 20:01:50,884 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 20:01:50,884 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 4901 transitions. [2018-07-23 20:01:50,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-07-23 20:01:50,888 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:01:50,889 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 20:01:50,889 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:01:50,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1144017482, now seen corresponding path program 1 times [2018-07-23 20:01:50,889 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:01:50,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:01:50,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:01:50,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:01:50,891 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:01:50,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:01:51,043 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:01:51,044 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:01:51,044 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 20:01:51,044 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:01:51,045 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 20:01:51,045 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 20:01:51,045 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 20:01:51,046 INFO L87 Difference]: Start difference. First operand 2925 states and 4901 transitions. Second operand 5 states. [2018-07-23 20:02:03,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:02:03,751 INFO L93 Difference]: Finished difference Result 10301 states and 17313 transitions. [2018-07-23 20:02:03,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 20:02:03,760 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2018-07-23 20:02:03,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:02:03,809 INFO L225 Difference]: With dead ends: 10301 [2018-07-23 20:02:03,810 INFO L226 Difference]: Without dead ends: 7382 [2018-07-23 20:02:03,826 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-23 20:02:03,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7382 states. [2018-07-23 20:02:04,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7382 to 7290. [2018-07-23 20:02:04,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7290 states. [2018-07-23 20:02:04,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7290 states to 7290 states and 10504 transitions. [2018-07-23 20:02:04,042 INFO L78 Accepts]: Start accepts. Automaton has 7290 states and 10504 transitions. Word has length 102 [2018-07-23 20:02:04,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:02:04,043 INFO L471 AbstractCegarLoop]: Abstraction has 7290 states and 10504 transitions. [2018-07-23 20:02:04,043 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 20:02:04,043 INFO L276 IsEmpty]: Start isEmpty. Operand 7290 states and 10504 transitions. [2018-07-23 20:02:04,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-07-23 20:02:04,046 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:02:04,047 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 20:02:04,047 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:02:04,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1696287978, now seen corresponding path program 1 times [2018-07-23 20:02:04,047 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:02:04,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:02:04,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:02:04,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:02:04,049 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:02:04,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:02:04,304 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:02:04,305 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:02:04,305 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 20:02:04,305 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:02:04,306 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 20:02:04,306 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 20:02:04,307 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 20:02:04,307 INFO L87 Difference]: Start difference. First operand 7290 states and 10504 transitions. Second operand 4 states. [2018-07-23 20:02:12,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:02:12,341 INFO L93 Difference]: Finished difference Result 26626 states and 40087 transitions. [2018-07-23 20:02:12,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 20:02:12,342 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 124 [2018-07-23 20:02:12,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:02:12,431 INFO L225 Difference]: With dead ends: 26626 [2018-07-23 20:02:12,432 INFO L226 Difference]: Without dead ends: 19342 [2018-07-23 20:02:12,482 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 20:02:12,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19342 states. [2018-07-23 20:02:12,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19342 to 19339. [2018-07-23 20:02:12,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19339 states. [2018-07-23 20:02:12,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19339 states to 19339 states and 27283 transitions. [2018-07-23 20:02:12,931 INFO L78 Accepts]: Start accepts. Automaton has 19339 states and 27283 transitions. Word has length 124 [2018-07-23 20:02:12,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:02:12,932 INFO L471 AbstractCegarLoop]: Abstraction has 19339 states and 27283 transitions. [2018-07-23 20:02:12,932 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 20:02:12,932 INFO L276 IsEmpty]: Start isEmpty. Operand 19339 states and 27283 transitions. [2018-07-23 20:02:12,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2018-07-23 20:02:12,943 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:02:12,944 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:02:12,944 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:02:12,944 INFO L82 PathProgramCache]: Analyzing trace with hash -592453088, now seen corresponding path program 1 times [2018-07-23 20:02:12,945 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:02:12,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:02:12,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:02:12,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:02:12,946 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:02:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:02:13,209 WARN L169 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 20:02:13,316 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 38 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 20:02:13,316 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 20:02:13,317 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 20:02:13,318 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 223 with the following transitions: [2018-07-23 20:02:13,320 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [1648], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1755], [1757], [1760], [1768], [1776], [1784], [1792], [1800], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2120], [2128], [2136], [2140], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2364], [3020], [3021], [3022], [3023], [3025], [3026] [2018-07-23 20:02:13,389 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 20:02:13,389 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 20:02:21,074 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 20:02:21,076 INFO L272 AbstractInterpreter]: Visited 131 different actions 131 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-23 20:02:21,085 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 20:02:24,580 INFO L232 lantSequenceWeakener]: Weakened 214 states. On average, predicates are now at 77.53% of their original sizes. [2018-07-23 20:02:24,580 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 20:02:25,053 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 20:02:25,054 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 20:02:25,058 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2018-07-23 20:02:25,058 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:02:25,059 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 20:02:25,059 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 20:02:25,059 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 20:02:25,061 INFO L87 Difference]: Start difference. First operand 19339 states and 27283 transitions. Second operand 7 states. [2018-07-23 20:02:41,837 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 20:03:59,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:03:59,708 INFO L93 Difference]: Finished difference Result 39377 states and 55398 transitions. [2018-07-23 20:03:59,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 20:03:59,709 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 222 [2018-07-23 20:03:59,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:03:59,771 INFO L225 Difference]: With dead ends: 39377 [2018-07-23 20:03:59,772 INFO L226 Difference]: Without dead ends: 20044 [2018-07-23 20:03:59,823 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 222 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-23 20:03:59,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20044 states. [2018-07-23 20:04:00,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20044 to 20042. [2018-07-23 20:04:00,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20042 states. [2018-07-23 20:04:00,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20042 states to 20042 states and 27998 transitions. [2018-07-23 20:04:00,205 INFO L78 Accepts]: Start accepts. Automaton has 20042 states and 27998 transitions. Word has length 222 [2018-07-23 20:04:00,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:04:00,206 INFO L471 AbstractCegarLoop]: Abstraction has 20042 states and 27998 transitions. [2018-07-23 20:04:00,206 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 20:04:00,206 INFO L276 IsEmpty]: Start isEmpty. Operand 20042 states and 27998 transitions. [2018-07-23 20:04:00,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2018-07-23 20:04:00,222 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:04:00,222 INFO L353 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-23 20:04:00,222 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:04:00,223 INFO L82 PathProgramCache]: Analyzing trace with hash 39491227, now seen corresponding path program 1 times [2018-07-23 20:04:00,223 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:04:00,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:04:00,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:04:00,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:04:00,224 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:04:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:04:00,838 WARN L169 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-23 20:04:01,049 WARN L169 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-23 20:04:01,260 WARN L169 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-23 20:04:01,627 WARN L169 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-07-23 20:04:02,139 WARN L169 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-07-23 20:04:02,472 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 116 proven. 202 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 20:04:02,472 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 20:04:02,472 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 20:04:02,473 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 410 with the following transitions: [2018-07-23 20:04:02,473 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [1648], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1755], [1757], [1760], [1768], [1776], [1784], [1792], [1800], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2120], [2128], [2136], [2140], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2364], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2608], [3020], [3021], [3022], [3023], [3025], [3026] [2018-07-23 20:04:02,482 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 20:04:02,482 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 20:04:33,630 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 20:04:33,630 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 20:04:33,636 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 20:04:47,008 INFO L232 lantSequenceWeakener]: Weakened 407 states. On average, predicates are now at 77.46% of their original sizes. [2018-07-23 20:04:47,009 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 20:04:47,867 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 20:04:47,867 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 20:04:47,867 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 20 [2018-07-23 20:04:47,868 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:04:47,869 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 20:04:47,869 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 20:04:47,870 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-23 20:04:47,870 INFO L87 Difference]: Start difference. First operand 20042 states and 27998 transitions. Second operand 11 states. Received shutdown request... [2018-07-23 20:05:08,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 20:05:08,160 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 20:05:08,167 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 20:05:08,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 08:05:08 BoogieIcfgContainer [2018-07-23 20:05:08,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 20:05:08,168 INFO L168 Benchmark]: Toolchain (without parser) took 225857.56 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -776.0 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-07-23 20:05:08,170 INFO L168 Benchmark]: CDTParser took 0.25 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. [2018-07-23 20:05:08,170 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1863.83 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-07-23 20:05:08,171 INFO L168 Benchmark]: Boogie Procedure Inliner took 208.20 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-23 20:05:08,172 INFO L168 Benchmark]: Boogie Preprocessor took 689.33 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 843.6 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2018-07-23 20:05:08,173 INFO L168 Benchmark]: RCFGBuilder took 9371.13 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 541.6 MB). Peak memory consumption was 541.6 MB. Max. memory is 7.1 GB. [2018-07-23 20:05:08,173 INFO L168 Benchmark]: TraceAbstraction took 213719.44 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 2.2 GB in the end (delta: -464.2 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-07-23 20:05:08,179 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 1863.83 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 208.20 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 689.33 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 843.6 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9371.13 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 541.6 MB). Peak memory consumption was 541.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213719.44 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 2.2 GB in the end (delta: -464.2 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: 66]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 66). Cancelled while BasicCegarLoop was constructing difference of abstraction (20042states) and interpolant automaton (currently 7 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (126 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 213.6s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 151.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2140 SDtfs, 9498 SDslu, 757 SDs, 0 SdLazy, 18554 SolverSat, 4905 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 104.6s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 663 GetRequests, 612 SyntacticMatches, 17 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20042occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 38.9s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9961147208589665 AbsIntWeakeningRatio, 0.09220985691573927 AbsIntAvgWeakeningVarsNumRemoved, 328.9284578696343 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 123 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 980 NumberOfCodeBlocks, 980 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 974 ConstructedInterpolants, 0 QuantifiedInterpolants, 1347852 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 221/488 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/Problem18_label00_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_20-05-08-195.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem18_label00_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_20-05-08-195.csv Completed graceful shutdown