java -Xss4m -Xmx6000000000 -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 ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label55_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 16:04:06,059 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 16:04:06,061 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 16:04:06,074 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 16:04:06,075 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 16:04:06,076 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 16:04:06,077 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 16:04:06,080 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 16:04:06,082 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 16:04:06,084 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 16:04:06,085 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 16:04:06,085 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 16:04:06,086 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 16:04:06,087 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 16:04:06,088 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 16:04:06,091 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 16:04:06,091 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 16:04:06,093 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 16:04:06,102 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 16:04:06,103 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 16:04:06,104 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 16:04:06,105 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 16:04:06,109 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 16:04:06,110 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 16:04:06,110 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 16:04:06,110 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 16:04:06,113 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 16:04:06,114 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 16:04:06,115 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 16:04:06,116 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 16:04:06,116 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 16:04:06,116 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 16:04:06,116 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 16:04:06,121 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 16:04:06,123 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 16:04:06,123 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 16:04:06,123 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-21 16:04:06,145 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 16:04:06,145 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 16:04:06,146 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 16:04:06,146 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 16:04:06,146 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 16:04:06,146 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 16:04:06,147 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 16:04:06,152 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 16:04:06,152 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 16:04:06,152 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 16:04:06,152 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 16:04:06,152 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 16:04:06,153 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 16:04:06,153 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 16:04:06,154 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 16:04:06,154 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 16:04:06,154 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 16:04:06,154 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 16:04:06,154 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 16:04:06,155 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 16:04:06,156 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 16:04:06,156 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 16:04:06,156 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 16:04:06,156 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 16:04:06,156 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 16:04:06,157 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 16:04:06,157 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 16:04:06,157 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 16:04:06,157 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 16:04:06,157 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 16:04:06,157 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 16:04:06,158 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 16:04:06,158 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 16:04:06,158 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 16:04:06,158 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 16:04:06,210 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 16:04:06,226 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 16:04:06,231 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 16:04:06,232 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 16:04:06,233 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 16:04:06,233 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label55_true-unreach-call.c [2018-07-21 16:04:06,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/d6f91c24f/0b73c308dba745d6aeee4c784d8bdb4c/FLAG7a518d35d [2018-07-21 16:04:06,900 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 16:04:06,901 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label55_true-unreach-call.c [2018-07-21 16:04:06,943 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/d6f91c24f/0b73c308dba745d6aeee4c784d8bdb4c/FLAG7a518d35d [2018-07-21 16:04:06,957 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/d6f91c24f/0b73c308dba745d6aeee4c784d8bdb4c [2018-07-21 16:04:06,967 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 16:04:06,975 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 16:04:06,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 16:04:06,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 16:04:06,983 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 16:04:06,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:04:06" (1/1) ... [2018-07-21 16:04:06,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b65a3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:04:06, skipping insertion in model container [2018-07-21 16:04:06,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:04:06" (1/1) ... [2018-07-21 16:04:07,234 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 16:04:07,610 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 16:04:07,628 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 16:04:07,878 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 16:04:07,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:04:07 WrapperNode [2018-07-21 16:04:07,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 16:04:07,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 16:04:07,987 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 16:04:07,987 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 16:04:07,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:04:07" (1/1) ... [2018-07-21 16:04:08,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:04:07" (1/1) ... [2018-07-21 16:04:08,151 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 16:04:08,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 16:04:08,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 16:04:08,151 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 16:04:08,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:04:07" (1/1) ... [2018-07-21 16:04:08,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:04:07" (1/1) ... [2018-07-21 16:04:08,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:04:07" (1/1) ... [2018-07-21 16:04:08,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:04:07" (1/1) ... [2018-07-21 16:04:08,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:04:07" (1/1) ... [2018-07-21 16:04:08,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:04:07" (1/1) ... [2018-07-21 16:04:08,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:04:07" (1/1) ... [2018-07-21 16:04:08,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 16:04:08,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 16:04:08,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 16:04:08,599 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 16:04:08,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:04:07" (1/1) ... No working directory specified, using /storage/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 [2018-07-21 16:04:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 16:04:08,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 16:04:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 16:04:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 16:04:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 16:04:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 16:04:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 16:04:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 16:04:12,629 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 16:04:12,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:04:12 BoogieIcfgContainer [2018-07-21 16:04:12,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 16:04:12,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 16:04:12,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 16:04:12,640 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 16:04:12,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:04:06" (1/3) ... [2018-07-21 16:04:12,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ed23b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:04:12, skipping insertion in model container [2018-07-21 16:04:12,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:04:07" (2/3) ... [2018-07-21 16:04:12,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ed23b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:04:12, skipping insertion in model container [2018-07-21 16:04:12,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:04:12" (3/3) ... [2018-07-21 16:04:12,644 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label55_true-unreach-call.c [2018-07-21 16:04:12,655 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 16:04:12,663 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 16:04:12,712 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 16:04:12,713 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 16:04:12,713 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 16:04:12,714 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 16:04:12,714 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 16:04:12,714 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 16:04:12,714 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 16:04:12,714 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 16:04:12,714 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 16:04:12,780 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-07-21 16:04:12,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-07-21 16:04:12,791 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 16:04:12,792 INFO L358 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] [2018-07-21 16:04:12,793 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 16:04:12,802 INFO L82 PathProgramCache]: Analyzing trace with hash 93876668, now seen corresponding path program 1 times [2018-07-21 16:04:12,804 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 16:04:12,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 16:04:12,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 16:04:12,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 16:04:12,856 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 16:04:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 16:04:13,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 16:04:13,219 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 16:04:13,220 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 16:04:13,220 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 16:04:13,224 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 16:04:13,235 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 16:04:13,235 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 16:04:13,238 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-07-21 16:04:16,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 16:04:16,099 INFO L93 Difference]: Finished difference Result 979 states and 1754 transitions. [2018-07-21 16:04:16,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 16:04:16,101 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2018-07-21 16:04:16,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 16:04:16,125 INFO L225 Difference]: With dead ends: 979 [2018-07-21 16:04:16,125 INFO L226 Difference]: Without dead ends: 680 [2018-07-21 16:04:16,135 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 16:04:16,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2018-07-21 16:04:16,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 484. [2018-07-21 16:04:16,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2018-07-21 16:04:16,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 730 transitions. [2018-07-21 16:04:16,231 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 730 transitions. Word has length 52 [2018-07-21 16:04:16,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 16:04:16,232 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 730 transitions. [2018-07-21 16:04:16,232 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 16:04:16,233 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 730 transitions. [2018-07-21 16:04:16,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-07-21 16:04:16,239 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 16:04:16,239 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 16:04:16,239 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 16:04:16,240 INFO L82 PathProgramCache]: Analyzing trace with hash -2008345501, now seen corresponding path program 1 times [2018-07-21 16:04:16,240 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 16:04:16,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 16:04:16,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 16:04:16,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 16:04:16,242 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 16:04:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 16:04:16,607 WARN L169 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 16:04:16,666 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 16:04:16,666 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 16:04:16,666 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 16:04:16,667 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 16:04:16,669 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 16:04:16,669 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 16:04:16,669 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 16:04:16,669 INFO L87 Difference]: Start difference. First operand 484 states and 730 transitions. Second operand 6 states. [2018-07-21 16:04:20,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 16:04:20,118 INFO L93 Difference]: Finished difference Result 1555 states and 2493 transitions. [2018-07-21 16:04:20,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 16:04:20,119 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-07-21 16:04:20,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 16:04:20,129 INFO L225 Difference]: With dead ends: 1555 [2018-07-21 16:04:20,129 INFO L226 Difference]: Without dead ends: 1077 [2018-07-21 16:04:20,134 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 16:04:20,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2018-07-21 16:04:20,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1063. [2018-07-21 16:04:20,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1063 states. [2018-07-21 16:04:20,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1592 transitions. [2018-07-21 16:04:20,215 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1592 transitions. Word has length 125 [2018-07-21 16:04:20,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 16:04:20,216 INFO L471 AbstractCegarLoop]: Abstraction has 1063 states and 1592 transitions. [2018-07-21 16:04:20,216 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 16:04:20,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1592 transitions. [2018-07-21 16:04:20,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-07-21 16:04:20,221 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 16:04:20,221 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 16:04:20,221 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 16:04:20,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1789806752, now seen corresponding path program 1 times [2018-07-21 16:04:20,222 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 16:04:20,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 16:04:20,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 16:04:20,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 16:04:20,223 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 16:04:20,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 16:04:20,552 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 16:04:20,552 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 16:04:20,553 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 16:04:20,553 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 16:04:20,553 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 16:04:20,554 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 16:04:20,554 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 16:04:20,554 INFO L87 Difference]: Start difference. First operand 1063 states and 1592 transitions. Second operand 4 states. [2018-07-21 16:04:23,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 16:04:23,071 INFO L93 Difference]: Finished difference Result 2907 states and 4465 transitions. [2018-07-21 16:04:23,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 16:04:23,076 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 126 [2018-07-21 16:04:23,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 16:04:23,093 INFO L225 Difference]: With dead ends: 2907 [2018-07-21 16:04:23,093 INFO L226 Difference]: Without dead ends: 1850 [2018-07-21 16:04:23,098 INFO L578 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 [2018-07-21 16:04:23,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2018-07-21 16:04:23,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1646. [2018-07-21 16:04:23,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2018-07-21 16:04:23,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2436 transitions. [2018-07-21 16:04:23,190 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2436 transitions. Word has length 126 [2018-07-21 16:04:23,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 16:04:23,191 INFO L471 AbstractCegarLoop]: Abstraction has 1646 states and 2436 transitions. [2018-07-21 16:04:23,192 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 16:04:23,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2436 transitions. [2018-07-21 16:04:23,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-07-21 16:04:23,203 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 16:04:23,203 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 16:04:23,204 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 16:04:23,205 INFO L82 PathProgramCache]: Analyzing trace with hash 56554903, now seen corresponding path program 1 times [2018-07-21 16:04:23,205 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 16:04:23,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 16:04:23,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 16:04:23,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 16:04:23,206 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 16:04:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 16:04:23,787 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 16:04:23,788 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 16:04:23,788 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 16:04:23,789 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-07-21 16:04:23,792 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [341], [343], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [618], [1108], [1109], [1110], [1111], [1113], [1114] [2018-07-21 16:04:23,871 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 16:04:23,871 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 16:04:35,611 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 16:04:38,685 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 16:04:38,687 INFO L272 AbstractInterpreter]: Visited 99 different actions 99 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-07-21 16:04:38,729 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 16:04:47,774 INFO L232 lantSequenceWeakener]: Weakened 142 states. On average, predicates are now at 73.94% of their original sizes. [2018-07-21 16:04:47,775 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 16:04:48,758 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 16:04:48,759 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 16:04:48,760 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2018-07-21 16:04:48,760 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 16:04:48,760 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-21 16:04:48,761 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-21 16:04:48,761 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-21 16:04:48,761 INFO L87 Difference]: Start difference. First operand 1646 states and 2436 transitions. Second operand 7 states. [2018-07-21 16:05:46,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 16:05:46,123 INFO L93 Difference]: Finished difference Result 3478 states and 5113 transitions. [2018-07-21 16:05:46,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 16:05:46,146 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 147 [2018-07-21 16:05:46,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 16:05:46,160 INFO L225 Difference]: With dead ends: 3478 [2018-07-21 16:05:46,160 INFO L226 Difference]: Without dead ends: 1838 [2018-07-21 16:05:46,166 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 147 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-21 16:05:46,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2018-07-21 16:05:46,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1836. [2018-07-21 16:05:46,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1836 states. [2018-07-21 16:05:46,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1836 states to 1836 states and 2636 transitions. [2018-07-21 16:05:46,247 INFO L78 Accepts]: Start accepts. Automaton has 1836 states and 2636 transitions. Word has length 147 [2018-07-21 16:05:46,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 16:05:46,247 INFO L471 AbstractCegarLoop]: Abstraction has 1836 states and 2636 transitions. [2018-07-21 16:05:46,247 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-21 16:05:46,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1836 states and 2636 transitions. [2018-07-21 16:05:46,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2018-07-21 16:05:46,256 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 16:05:46,256 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-21 16:05:46,257 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 16:05:46,257 INFO L82 PathProgramCache]: Analyzing trace with hash 966649206, now seen corresponding path program 1 times [2018-07-21 16:05:46,257 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 16:05:46,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 16:05:46,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 16:05:46,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 16:05:46,258 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 16:05:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 16:05:46,728 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-07-21 16:05:46,728 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 16:05:46,729 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 16:05:46,729 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 265 with the following transitions: [2018-07-21 16:05:46,729 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [341], [343], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [618], [619], [623], [627], [631], [635], [639], [650], [654], [658], [662], [666], [670], [674], [678], [682], [686], [690], [701], [712], [716], [720], [731], [734], [1108], [1109], [1110], [1111], [1113], [1114] [2018-07-21 16:05:46,741 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 16:05:46,742 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 16:05:56,420 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 16:06:29,641 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 16:06:29,641 INFO L272 AbstractInterpreter]: Visited 125 different actions 363 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-07-21 16:06:29,658 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 16:06:35,016 INFO L232 lantSequenceWeakener]: Weakened 262 states. On average, predicates are now at 73.61% of their original sizes. [2018-07-21 16:06:35,017 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 16:06:35,962 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 16:06:35,962 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 16:06:35,963 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [7] total 18 [2018-07-21 16:06:35,963 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 16:06:35,963 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-21 16:06:35,964 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-21 16:06:35,964 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-07-21 16:06:35,964 INFO L87 Difference]: Start difference. First operand 1836 states and 2636 transitions. Second operand 13 states. [2018-07-21 16:07:32,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 16:07:32,829 INFO L93 Difference]: Finished difference Result 3671 states and 5319 transitions. [2018-07-21 16:07:32,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-21 16:07:32,829 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 264 [2018-07-21 16:07:32,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 16:07:32,842 INFO L225 Difference]: With dead ends: 3671 [2018-07-21 16:07:32,842 INFO L226 Difference]: Without dead ends: 2031 [2018-07-21 16:07:32,848 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 273 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2018-07-21 16:07:32,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2031 states. [2018-07-21 16:07:32,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2031 to 2027. [2018-07-21 16:07:32,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2027 states. [2018-07-21 16:07:32,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2846 transitions. [2018-07-21 16:07:32,939 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2846 transitions. Word has length 264 [2018-07-21 16:07:32,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 16:07:32,939 INFO L471 AbstractCegarLoop]: Abstraction has 2027 states and 2846 transitions. [2018-07-21 16:07:32,940 INFO L472 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-21 16:07:32,940 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2846 transitions. [2018-07-21 16:07:32,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2018-07-21 16:07:32,948 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 16:07:32,948 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 16:07:32,949 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 16:07:32,949 INFO L82 PathProgramCache]: Analyzing trace with hash 311444330, now seen corresponding path program 1 times [2018-07-21 16:07:32,949 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 16:07:32,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 16:07:32,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 16:07:32,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 16:07:32,950 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 16:07:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 16:07:33,520 WARN L169 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-07-21 16:07:34,180 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 4 proven. 93 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-07-21 16:07:34,181 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 16:07:34,181 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 16:07:34,181 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 275 with the following transitions: [2018-07-21 16:07:34,182 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [341], [343], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [618], [619], [623], [627], [631], [635], [639], [650], [654], [658], [662], [666], [670], [674], [678], [682], [686], [690], [701], [712], [716], [720], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [774], [1108], [1109], [1110], [1111], [1113], [1114] [2018-07-21 16:07:34,188 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 16:07:34,189 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 16:07:43,143 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-21 16:07:46,351 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-21 16:07:46,351 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-21 16:07:46,352 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-21 16:07:46,353 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 16:07:46,353 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 16:07:46,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 16:07:46,368 INFO L282 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-21 16:07:46,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 16:07:46,494 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 16:07:46,528 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-21 16:07:46,729 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 16:07:46,730 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 16:07:46,733 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 16:07:46,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 04:07:46 BoogieIcfgContainer [2018-07-21 16:07:46,734 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 16:07:46,734 INFO L168 Benchmark]: Toolchain (without parser) took 219766.41 ms. Allocated memory was 308.3 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 251.6 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.2 GB. Max. memory is 5.3 GB. [2018-07-21 16:07:46,735 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 308.3 MB. Free memory is still 273.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 16:07:46,736 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1010.35 ms. Allocated memory was 308.3 MB in the beginning and 337.1 MB in the end (delta: 28.8 MB). Free memory was 250.6 MB in the beginning and 293.0 MB in the end (delta: -42.4 MB). Peak memory consumption was 80.2 MB. Max. memory is 5.3 GB. [2018-07-21 16:07:46,736 INFO L168 Benchmark]: Boogie Procedure Inliner took 164.09 ms. Allocated memory is still 337.1 MB. Free memory was 293.0 MB in the beginning and 273.9 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 5.3 GB. [2018-07-21 16:07:46,737 INFO L168 Benchmark]: Boogie Preprocessor took 447.64 ms. Allocated memory was 337.1 MB in the beginning and 508.0 MB in the end (delta: 170.9 MB). Free memory was 273.9 MB in the beginning and 467.3 MB in the end (delta: -193.4 MB). Peak memory consumption was 19.5 MB. Max. memory is 5.3 GB. [2018-07-21 16:07:46,737 INFO L168 Benchmark]: RCFGBuilder took 4031.49 ms. Allocated memory is still 508.0 MB. Free memory was 467.3 MB in the beginning and 279.8 MB in the end (delta: 187.5 MB). Peak memory consumption was 187.5 MB. Max. memory is 5.3 GB. [2018-07-21 16:07:46,738 INFO L168 Benchmark]: TraceAbstraction took 214102.17 ms. Allocated memory was 508.0 MB in the beginning and 2.6 GB in the end (delta: 2.1 GB). Free memory was 279.8 MB in the beginning and 1.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.0 GB. Max. memory is 5.3 GB. [2018-07-21 16:07:46,743 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 308.3 MB. Free memory is still 273.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 1010.35 ms. Allocated memory was 308.3 MB in the beginning and 337.1 MB in the end (delta: 28.8 MB). Free memory was 250.6 MB in the beginning and 293.0 MB in the end (delta: -42.4 MB). Peak memory consumption was 80.2 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 164.09 ms. Allocated memory is still 337.1 MB. Free memory was 293.0 MB in the beginning and 273.9 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 447.64 ms. Allocated memory was 337.1 MB in the beginning and 508.0 MB in the end (delta: 170.9 MB). Free memory was 273.9 MB in the beginning and 467.3 MB in the end (delta: -193.4 MB). Peak memory consumption was 19.5 MB. Max. memory is 5.3 GB. * RCFGBuilder took 4031.49 ms. Allocated memory is still 508.0 MB. Free memory was 467.3 MB in the beginning and 279.8 MB in the end (delta: 187.5 MB). Peak memory consumption was 187.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 214102.17 ms. Allocated memory was 508.0 MB in the beginning and 2.6 GB in the end (delta: 2.1 GB). Free memory was 279.8 MB in the beginning and 1.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.0 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 141]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 141). Cancelled while BasicCegarLoop was analyzing trace of length 275 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 9 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 214.0s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 123.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1376 SDtfs, 3684 SDslu, 985 SDs, 0 SdLazy, 5829 SolverSat, 1437 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 81.0s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 441 GetRequests, 402 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2027occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 70.0s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9954269673096084 AbsIntWeakeningRatio, 0.12224938875305623 AbsIntAvgWeakeningVarsNumRemoved, 24.880195599022006 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 420 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 714 NumberOfCodeBlocks, 714 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 709 ConstructedInterpolants, 0 QuantifiedInterpolants, 414750 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 182/320 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/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem11_label55_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_16-07-46-755.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem11_label55_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_16-07-46-755.csv Completed graceful shutdown