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/Problem16_label08_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 04:39:33,259 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 04:39:33,261 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 04:39:33,279 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 04:39:33,280 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 04:39:33,281 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 04:39:33,282 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 04:39:33,286 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 04:39:33,289 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 04:39:33,290 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 04:39:33,291 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 04:39:33,291 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 04:39:33,293 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 04:39:33,294 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 04:39:33,295 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 04:39:33,296 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 04:39:33,299 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 04:39:33,301 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 04:39:33,314 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 04:39:33,316 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 04:39:33,317 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 04:39:33,318 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 04:39:33,320 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-21 04:39:33,330 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 04:39:33,331 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 04:39:33,331 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 04:39:33,336 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 04:39:33,337 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 04:39:33,354 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 04:39:33,355 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 04:39:33,356 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 04:39:33,356 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 04:39:33,356 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 04:39:33,356 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 04:39:33,357 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 04:39:33,357 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 04:39:33,357 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 04:39:33,357 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 04:39:33,357 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 04:39:33,357 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 04:39:33,358 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 04:39:33,359 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 04:39:33,359 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 04:39:33,359 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 04:39:33,359 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 04:39:33,359 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 04:39:33,360 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 04:39:33,360 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 04:39:33,360 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 04:39:33,360 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 04:39:33,360 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 04:39:33,360 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 04:39:33,361 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 04:39:33,361 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 04:39:33,361 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 04:39:33,361 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 04:39:33,361 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 04:39:33,362 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 04:39:33,362 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 04:39:33,362 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 04:39:33,362 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 04:39:33,362 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 04:39:33,363 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 04:39:33,404 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 04:39:33,420 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 04:39:33,424 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 04:39:33,426 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 04:39:33,426 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 04:39:33,427 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label08_false-unreach-call.c [2018-07-21 04:39:33,908 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/6dc85357a/19daa9ba1b7d4e238fb3ffd249d9f773/FLAG164f3670e [2018-07-21 04:39:34,266 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 04:39:34,267 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label08_false-unreach-call.c [2018-07-21 04:39:34,288 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/6dc85357a/19daa9ba1b7d4e238fb3ffd249d9f773/FLAG164f3670e [2018-07-21 04:39:34,408 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/6dc85357a/19daa9ba1b7d4e238fb3ffd249d9f773 [2018-07-21 04:39:34,416 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 04:39:34,868 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 04:39:34,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 04:39:34,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 04:39:34,876 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 04:39:34,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:39:34" (1/1) ... [2018-07-21 04:39:34,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df9384a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:39:34, skipping insertion in model container [2018-07-21 04:39:34,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:39:34" (1/1) ... [2018-07-21 04:39:35,107 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 04:39:35,674 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 04:39:35,688 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 04:39:36,070 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 04:39:36,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:39:36 WrapperNode [2018-07-21 04:39:36,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 04:39:36,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 04:39:36,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 04:39:36,169 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 04:39:36,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:39:36" (1/1) ... [2018-07-21 04:39:36,236 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:39:36" (1/1) ... [2018-07-21 04:39:36,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 04:39:36,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 04:39:36,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 04:39:36,370 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 04:39:36,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:39:36" (1/1) ... [2018-07-21 04:39:36,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:39:36" (1/1) ... [2018-07-21 04:39:36,393 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:39:36" (1/1) ... [2018-07-21 04:39:36,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:39:36" (1/1) ... [2018-07-21 04:39:36,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:39:36" (1/1) ... [2018-07-21 04:39:36,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:39:36" (1/1) ... [2018-07-21 04:39:36,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:39:36" (1/1) ... [2018-07-21 04:39:36,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 04:39:36,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 04:39:36,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 04:39:36,560 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 04:39:36,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:39:36" (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 04:39:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 04:39:37,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 04:39:37,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 04:39:37,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 04:39:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-21 04:39:37,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-21 04:39:37,115 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 04:39:37,115 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 04:39:37,116 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-21 04:39:37,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-21 04:39:42,375 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 04:39:42,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:39:42 BoogieIcfgContainer [2018-07-21 04:39:42,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 04:39:42,378 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 04:39:42,378 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 04:39:42,474 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 04:39:42,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:39:34" (1/3) ... [2018-07-21 04:39:42,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56feb876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:39:42, skipping insertion in model container [2018-07-21 04:39:42,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:39:36" (2/3) ... [2018-07-21 04:39:42,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56feb876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:39:42, skipping insertion in model container [2018-07-21 04:39:42,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:39:42" (3/3) ... [2018-07-21 04:39:42,477 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label08_false-unreach-call.c [2018-07-21 04:39:42,517 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 04:39:42,560 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 04:39:42,965 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 04:39:42,966 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 04:39:42,966 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 04:39:42,966 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 04:39:42,966 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 04:39:42,966 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 04:39:42,966 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 04:39:42,966 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 04:39:42,966 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 04:39:43,069 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-07-21 04:39:43,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-07-21 04:39:43,125 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:39:43,127 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] [2018-07-21 04:39:43,127 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 04:39:43,150 INFO L82 PathProgramCache]: Analyzing trace with hash 468872140, now seen corresponding path program 1 times [2018-07-21 04:39:43,152 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:39:43,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:39:43,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:39:43,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:39:43,334 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:39:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:39:43,813 WARN L169 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 04:39:43,929 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 04:39:43,937 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 04:39:43,937 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 04:39:43,937 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:39:43,950 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 04:39:44,065 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 04:39:44,065 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 04:39:44,144 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-07-21 04:39:49,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 04:39:49,021 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-07-21 04:39:49,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 04:39:49,078 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-07-21 04:39:49,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 04:39:49,117 INFO L225 Difference]: With dead ends: 1156 [2018-07-21 04:39:49,117 INFO L226 Difference]: Without dead ends: 744 [2018-07-21 04:39:49,137 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 04:39:49,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-07-21 04:39:49,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-07-21 04:39:49,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-07-21 04:39:49,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1317 transitions. [2018-07-21 04:39:49,339 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1317 transitions. Word has length 24 [2018-07-21 04:39:49,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 04:39:49,339 INFO L471 AbstractCegarLoop]: Abstraction has 744 states and 1317 transitions. [2018-07-21 04:39:49,340 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 04:39:49,340 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1317 transitions. [2018-07-21 04:39:49,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-07-21 04:39:49,346 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:39:49,346 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 04:39:49,346 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 04:39:49,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1592325742, now seen corresponding path program 1 times [2018-07-21 04:39:49,347 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:39:49,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:39:49,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:39:49,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:39:49,349 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:39:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:39:49,665 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 04:39:49,666 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 04:39:49,666 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 04:39:49,666 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:39:49,668 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 04:39:49,669 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 04:39:49,669 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 04:39:49,669 INFO L87 Difference]: Start difference. First operand 744 states and 1317 transitions. Second operand 6 states. [2018-07-21 04:39:58,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 04:39:58,709 INFO L93 Difference]: Finished difference Result 2825 states and 5145 transitions. [2018-07-21 04:39:58,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 04:39:58,710 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 100 [2018-07-21 04:39:58,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 04:39:58,729 INFO L225 Difference]: With dead ends: 2825 [2018-07-21 04:39:58,729 INFO L226 Difference]: Without dead ends: 2087 [2018-07-21 04:39:58,736 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 04:39:58,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2087 states. [2018-07-21 04:39:58,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2087 to 2066. [2018-07-21 04:39:58,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2066 states. [2018-07-21 04:39:58,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2066 states to 2066 states and 3296 transitions. [2018-07-21 04:39:58,862 INFO L78 Accepts]: Start accepts. Automaton has 2066 states and 3296 transitions. Word has length 100 [2018-07-21 04:39:58,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 04:39:58,864 INFO L471 AbstractCegarLoop]: Abstraction has 2066 states and 3296 transitions. [2018-07-21 04:39:58,864 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 04:39:58,864 INFO L276 IsEmpty]: Start isEmpty. Operand 2066 states and 3296 transitions. [2018-07-21 04:39:58,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-07-21 04:39:58,874 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:39:58,874 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 04:39:58,875 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 04:39:58,875 INFO L82 PathProgramCache]: Analyzing trace with hash -609475938, now seen corresponding path program 1 times [2018-07-21 04:39:58,875 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:39:58,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:39:58,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:39:58,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:39:58,877 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:39:58,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:39:59,237 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 04:39:59,239 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 04:39:59,239 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 04:39:59,239 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:39:59,240 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 04:39:59,240 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 04:39:59,241 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 04:39:59,241 INFO L87 Difference]: Start difference. First operand 2066 states and 3296 transitions. Second operand 6 states. [2018-07-21 04:40:05,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 04:40:05,218 INFO L93 Difference]: Finished difference Result 5508 states and 9093 transitions. [2018-07-21 04:40:05,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 04:40:05,219 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2018-07-21 04:40:05,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 04:40:05,244 INFO L225 Difference]: With dead ends: 5508 [2018-07-21 04:40:05,244 INFO L226 Difference]: Without dead ends: 3448 [2018-07-21 04:40:05,256 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 04:40:05,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3448 states. [2018-07-21 04:40:05,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3448 to 3428. [2018-07-21 04:40:05,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3428 states. [2018-07-21 04:40:05,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3428 states to 3428 states and 5197 transitions. [2018-07-21 04:40:05,396 INFO L78 Accepts]: Start accepts. Automaton has 3428 states and 5197 transitions. Word has length 140 [2018-07-21 04:40:05,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 04:40:05,397 INFO L471 AbstractCegarLoop]: Abstraction has 3428 states and 5197 transitions. [2018-07-21 04:40:05,397 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 04:40:05,398 INFO L276 IsEmpty]: Start isEmpty. Operand 3428 states and 5197 transitions. [2018-07-21 04:40:05,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-07-21 04:40:05,406 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:40:05,407 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 04:40:05,407 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 04:40:05,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1098810796, now seen corresponding path program 1 times [2018-07-21 04:40:05,407 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:40:05,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:40:05,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:40:05,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:40:05,409 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:40:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:40:05,636 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 34 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-21 04:40:05,636 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 04:40:05,636 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 04:40:05,637 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 191 with the following transitions: [2018-07-21 04:40:05,659 INFO L201 CegarAbsIntRunner]: [0], [1], [183], [187], [193], [197], [199], [204], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [295], [297], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [676], [684], [692], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [744], [745], [749], [752], [1576], [1577], [1578], [1579], [1581], [1582] [2018-07-21 04:40:05,803 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 04:40:05,803 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 04:40:13,486 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 04:40:13,723 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 04:40:13,725 INFO L272 AbstractInterpreter]: Visited 89 different actions 89 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-21 04:40:13,762 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 04:40:21,337 INFO L232 lantSequenceWeakener]: Weakened 182 states. On average, predicates are now at 77.53% of their original sizes. [2018-07-21 04:40:21,338 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 04:40:21,836 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 04:40:21,837 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 04:40:21,837 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-07-21 04:40:21,837 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:40:21,838 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-21 04:40:21,838 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-21 04:40:21,838 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-21 04:40:21,839 INFO L87 Difference]: Start difference. First operand 3428 states and 5197 transitions. Second operand 7 states. [2018-07-21 04:42:55,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 04:42:55,713 INFO L93 Difference]: Finished difference Result 7190 states and 10928 transitions. [2018-07-21 04:42:55,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 04:42:55,713 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2018-07-21 04:42:55,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 04:42:55,733 INFO L225 Difference]: With dead ends: 7190 [2018-07-21 04:42:55,733 INFO L226 Difference]: Without dead ends: 3768 [2018-07-21 04:42:55,744 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 190 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-21 04:42:55,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3768 states. [2018-07-21 04:42:55,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3768 to 3766. [2018-07-21 04:42:55,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3766 states. [2018-07-21 04:42:55,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3766 states to 3766 states and 5543 transitions. [2018-07-21 04:42:55,883 INFO L78 Accepts]: Start accepts. Automaton has 3766 states and 5543 transitions. Word has length 190 [2018-07-21 04:42:55,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 04:42:55,883 INFO L471 AbstractCegarLoop]: Abstraction has 3766 states and 5543 transitions. [2018-07-21 04:42:55,883 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-21 04:42:55,883 INFO L276 IsEmpty]: Start isEmpty. Operand 3766 states and 5543 transitions. [2018-07-21 04:42:55,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-07-21 04:42:55,887 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:42:55,890 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 04:42:55,890 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 04:42:55,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1052572832, now seen corresponding path program 1 times [2018-07-21 04:42:55,891 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:42:55,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:42:55,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:42:55,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:42:55,892 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:42:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:42:56,246 WARN L169 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 04:42:56,414 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 35 proven. 14 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-07-21 04:42:56,415 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 04:42:56,415 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 04:42:56,415 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 201 with the following transitions: [2018-07-21 04:42:56,415 INFO L201 CegarAbsIntRunner]: [0], [1], [183], [187], [193], [197], [199], [204], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [295], [297], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [676], [684], [692], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [752], [753], [757], [761], [765], [769], [773], [777], [781], [784], [1576], [1577], [1578], [1579], [1581], [1582] [2018-07-21 04:42:56,421 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 04:42:56,421 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 04:43:01,139 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 04:43:08,066 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 04:43:08,067 INFO L272 AbstractInterpreter]: Visited 100 different actions 287 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-21 04:43:08,107 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 04:43:11,291 INFO L232 lantSequenceWeakener]: Weakened 198 states. On average, predicates are now at 77.57% of their original sizes. [2018-07-21 04:43:11,291 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 04:43:12,326 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 04:43:12,327 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 04:43:12,327 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21 [2018-07-21 04:43:12,327 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:43:12,328 INFO L450 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-07-21 04:43:12,328 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-07-21 04:43:12,328 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2018-07-21 04:43:12,328 INFO L87 Difference]: Start difference. First operand 3766 states and 5543 transitions. Second operand 17 states. Received shutdown request... [2018-07-21 04:43:14,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 04:43:14,490 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 04:43:14,559 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 04:43:14,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 04:43:14 BoogieIcfgContainer [2018-07-21 04:43:14,560 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 04:43:14,573 INFO L168 Benchmark]: Toolchain (without parser) took 220156.42 ms. Allocated memory was 307.2 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 248.7 MB in the beginning and 1.9 GB in the end (delta: -1.7 GB). Peak memory consumption was 647.5 MB. Max. memory is 5.3 GB. [2018-07-21 04:43:14,574 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 307.2 MB. Free memory is still 272.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 04:43:14,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1299.18 ms. Allocated memory was 307.2 MB in the beginning and 336.6 MB in the end (delta: 29.4 MB). Free memory was 248.7 MB in the beginning and 270.8 MB in the end (delta: -22.2 MB). Peak memory consumption was 74.9 MB. Max. memory is 5.3 GB. [2018-07-21 04:43:14,575 INFO L168 Benchmark]: Boogie Procedure Inliner took 200.35 ms. Allocated memory is still 336.6 MB. Free memory was 270.8 MB in the beginning and 247.0 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 5.3 GB. [2018-07-21 04:43:14,577 INFO L168 Benchmark]: Boogie Preprocessor took 190.21 ms. Allocated memory is still 336.6 MB. Free memory was 247.0 MB in the beginning and 232.7 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 5.3 GB. [2018-07-21 04:43:14,577 INFO L168 Benchmark]: RCFGBuilder took 5816.57 ms. Allocated memory was 336.6 MB in the beginning and 540.0 MB in the end (delta: 203.4 MB). Free memory was 232.7 MB in the beginning and 415.8 MB in the end (delta: -183.1 MB). Peak memory consumption was 151.1 MB. Max. memory is 5.3 GB. [2018-07-21 04:43:14,578 INFO L168 Benchmark]: TraceAbstraction took 212181.92 ms. Allocated memory was 540.0 MB in the beginning and 2.6 GB in the end (delta: 2.1 GB). Free memory was 415.8 MB in the beginning and 1.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 581.9 MB. Max. memory is 5.3 GB. [2018-07-21 04:43:14,583 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 307.2 MB. Free memory is still 272.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 1299.18 ms. Allocated memory was 307.2 MB in the beginning and 336.6 MB in the end (delta: 29.4 MB). Free memory was 248.7 MB in the beginning and 270.8 MB in the end (delta: -22.2 MB). Peak memory consumption was 74.9 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 200.35 ms. Allocated memory is still 336.6 MB. Free memory was 270.8 MB in the beginning and 247.0 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 190.21 ms. Allocated memory is still 336.6 MB. Free memory was 247.0 MB in the beginning and 232.7 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 5.3 GB. * RCFGBuilder took 5816.57 ms. Allocated memory was 336.6 MB in the beginning and 540.0 MB in the end (delta: 203.4 MB). Free memory was 232.7 MB in the beginning and 415.8 MB in the end (delta: -183.1 MB). Peak memory consumption was 151.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 212181.92 ms. Allocated memory was 540.0 MB in the beginning and 2.6 GB in the end (delta: 2.1 GB). Free memory was 415.8 MB in the beginning and 1.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 581.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 58). Cancelled while BasicCegarLoop was constructing difference of abstraction (3766states) and interpolant automaton (currently 7 states, 17 states before enhancement), while ReachableStatesComputation was computing reachable states (62 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 211.7s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 176.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 770 SDtfs, 4783 SDslu, 605 SDs, 0 SdLazy, 7950 SolverSat, 2433 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 146.7s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 419 GetRequests, 375 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3766occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 19.8s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9943597788734497 AbsIntWeakeningRatio, 0.13402061855670103 AbsIntAvgWeakeningVarsNumRemoved, 42.23969072164948 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 43 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 654 NumberOfCodeBlocks, 654 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 649 ConstructedInterpolants, 0 QuantifiedInterpolants, 446476 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 177/268 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/Problem16_label08_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_04-43-14-608.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem16_label08_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_04-43-14-608.csv Completed graceful shutdown