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_label44_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 04:55:44,486 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 04:55:44,489 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 04:55:44,504 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 04:55:44,504 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 04:55:44,505 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 04:55:44,507 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 04:55:44,509 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 04:55:44,511 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 04:55:44,512 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 04:55:44,515 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 04:55:44,516 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 04:55:44,517 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 04:55:44,521 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 04:55:44,522 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 04:55:44,523 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 04:55:44,532 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 04:55:44,534 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 04:55:44,536 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 04:55:44,543 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 04:55:44,545 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 04:55:44,549 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 04:55:44,551 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 04:55:44,551 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 04:55:44,551 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 04:55:44,557 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 04:55:44,558 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 04:55:44,558 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 04:55:44,559 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 04:55:44,560 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 04:55:44,560 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 04:55:44,565 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 04:55:44,565 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 04:55:44,565 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 04:55:44,566 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 04:55:44,567 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 04:55:44,567 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 04:55:44,590 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 04:55:44,590 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 04:55:44,591 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 04:55:44,591 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 04:55:44,591 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 04:55:44,591 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 04:55:44,592 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 04:55:44,592 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 04:55:44,592 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 04:55:44,592 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 04:55:44,592 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 04:55:44,593 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 04:55:44,593 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 04:55:44,593 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 04:55:44,594 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 04:55:44,594 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 04:55:44,594 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 04:55:44,594 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 04:55:44,594 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 04:55:44,595 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 04:55:44,595 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 04:55:44,595 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 04:55:44,595 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 04:55:44,595 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 04:55:44,596 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 04:55:44,596 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 04:55:44,596 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 04:55:44,596 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 04:55:44,596 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 04:55:44,597 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 04:55:44,597 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 04:55:44,597 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 04:55:44,597 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 04:55:44,597 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 04:55:44,597 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 04:55:44,653 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 04:55:44,668 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 04:55:44,673 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 04:55:44,676 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 04:55:44,677 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 04:55:44,677 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label44_false-unreach-call.c [2018-07-21 04:55:45,037 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/7e9d248de/40c4fa558e144f988c0a5538c8fd3dc6/FLAG6c9e6c4e6 [2018-07-21 04:55:45,480 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 04:55:45,485 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label44_false-unreach-call.c [2018-07-21 04:55:45,553 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/7e9d248de/40c4fa558e144f988c0a5538c8fd3dc6/FLAG6c9e6c4e6 [2018-07-21 04:55:45,587 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/7e9d248de/40c4fa558e144f988c0a5538c8fd3dc6 [2018-07-21 04:55:45,596 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 04:55:45,603 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 04:55:45,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 04:55:45,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 04:55:45,612 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 04:55:45,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:55:45" (1/1) ... [2018-07-21 04:55:45,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48b53f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:55:45, skipping insertion in model container [2018-07-21 04:55:45,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:55:45" (1/1) ... [2018-07-21 04:55:45,926 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 04:55:46,596 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 04:55:46,616 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 04:55:46,980 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 04:55:47,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:55:47 WrapperNode [2018-07-21 04:55:47,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 04:55:47,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 04:55:47,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 04:55:47,127 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 04:55:47,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:55:47" (1/1) ... [2018-07-21 04:55:47,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:55:47" (1/1) ... [2018-07-21 04:55:47,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 04:55:47,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 04:55:47,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 04:55:47,387 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 04:55:47,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:55:47" (1/1) ... [2018-07-21 04:55:47,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:55:47" (1/1) ... [2018-07-21 04:55:47,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:55:47" (1/1) ... [2018-07-21 04:55:47,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:55:47" (1/1) ... [2018-07-21 04:55:47,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:55:47" (1/1) ... [2018-07-21 04:55:47,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:55:47" (1/1) ... [2018-07-21 04:55:47,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:55:47" (1/1) ... [2018-07-21 04:55:47,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 04:55:47,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 04:55:47,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 04:55:47,910 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 04:55:47,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:55:47" (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 04:55:47,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 04:55:47,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 04:55:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 04:55:47,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 04:55:47,993 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 04:55:47,993 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 04:55:47,993 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 04:55:47,993 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 04:55:47,993 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 04:55:47,994 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 04:55:54,431 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 04:55:54,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:55:54 BoogieIcfgContainer [2018-07-21 04:55:54,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 04:55:54,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 04:55:54,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 04:55:54,438 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 04:55:54,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:55:45" (1/3) ... [2018-07-21 04:55:54,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d7eba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:55:54, skipping insertion in model container [2018-07-21 04:55:54,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:55:47" (2/3) ... [2018-07-21 04:55:54,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d7eba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:55:54, skipping insertion in model container [2018-07-21 04:55:54,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:55:54" (3/3) ... [2018-07-21 04:55:54,442 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label44_false-unreach-call.c [2018-07-21 04:55:54,452 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 04:55:54,467 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 04:55:54,541 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 04:55:54,541 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 04:55:54,541 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 04:55:54,542 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 04:55:54,542 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 04:55:54,542 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 04:55:54,542 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 04:55:54,542 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 04:55:54,542 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 04:55:54,572 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-07-21 04:55:54,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-07-21 04:55:54,581 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:55:54,583 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] [2018-07-21 04:55:54,583 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 04:55:54,589 INFO L82 PathProgramCache]: Analyzing trace with hash 265982867, now seen corresponding path program 1 times [2018-07-21 04:55:54,592 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:55:54,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:55:54,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:55:54,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:55:54,652 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:55:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:55:54,968 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 04:55:54,970 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 04:55:54,971 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 04:55:54,971 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:55:54,976 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 04:55:54,991 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 04:55:54,992 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 04:55:54,995 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-07-21 04:55:59,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 04:55:59,285 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-07-21 04:55:59,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 04:55:59,300 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2018-07-21 04:55:59,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 04:55:59,331 INFO L225 Difference]: With dead ends: 1156 [2018-07-21 04:55:59,332 INFO L226 Difference]: Without dead ends: 744 [2018-07-21 04:55:59,341 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 04:55:59,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-07-21 04:55:59,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-07-21 04:55:59,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-07-21 04:55:59,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1353 transitions. [2018-07-21 04:55:59,454 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1353 transitions. Word has length 37 [2018-07-21 04:55:59,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 04:55:59,455 INFO L471 AbstractCegarLoop]: Abstraction has 744 states and 1353 transitions. [2018-07-21 04:55:59,455 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 04:55:59,455 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1353 transitions. [2018-07-21 04:55:59,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-07-21 04:55:59,465 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:55:59,465 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:55:59,465 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 04:55:59,465 INFO L82 PathProgramCache]: Analyzing trace with hash 751441729, now seen corresponding path program 1 times [2018-07-21 04:55:59,466 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:55:59,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:55:59,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:55:59,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:55:59,468 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:55:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:55:59,800 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 04:55:59,800 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 04:55:59,801 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 04:55:59,801 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:55:59,803 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 04:55:59,803 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 04:55:59,804 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 04:55:59,804 INFO L87 Difference]: Start difference. First operand 744 states and 1353 transitions. Second operand 6 states. [2018-07-21 04:56:05,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 04:56:05,674 INFO L93 Difference]: Finished difference Result 2181 states and 4000 transitions. [2018-07-21 04:56:05,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 04:56:05,676 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 130 [2018-07-21 04:56:05,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 04:56:05,690 INFO L225 Difference]: With dead ends: 2181 [2018-07-21 04:56:05,691 INFO L226 Difference]: Without dead ends: 1443 [2018-07-21 04:56:05,697 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 04:56:05,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2018-07-21 04:56:05,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1422. [2018-07-21 04:56:05,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1422 states. [2018-07-21 04:56:05,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 2315 transitions. [2018-07-21 04:56:05,799 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 2315 transitions. Word has length 130 [2018-07-21 04:56:05,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 04:56:05,800 INFO L471 AbstractCegarLoop]: Abstraction has 1422 states and 2315 transitions. [2018-07-21 04:56:05,800 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 04:56:05,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 2315 transitions. [2018-07-21 04:56:05,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-07-21 04:56:05,806 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:56:05,806 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:56:05,806 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 04:56:05,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1250043516, now seen corresponding path program 1 times [2018-07-21 04:56:05,807 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:56:05,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:56:05,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:56:05,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:56:05,808 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:56:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:56:06,075 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 04:56:06,076 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 04:56:06,076 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 04:56:06,076 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:56:06,077 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 04:56:06,077 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 04:56:06,077 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 04:56:06,077 INFO L87 Difference]: Start difference. First operand 1422 states and 2315 transitions. Second operand 6 states. [2018-07-21 04:56:09,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 04:56:09,832 INFO L93 Difference]: Finished difference Result 3902 states and 6580 transitions. [2018-07-21 04:56:09,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 04:56:09,837 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 139 [2018-07-21 04:56:09,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 04:56:09,861 INFO L225 Difference]: With dead ends: 3902 [2018-07-21 04:56:09,862 INFO L226 Difference]: Without dead ends: 2486 [2018-07-21 04:56:09,868 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 04:56:09,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2486 states. [2018-07-21 04:56:09,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2486 to 2476. [2018-07-21 04:56:09,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2476 states. [2018-07-21 04:56:09,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 3825 transitions. [2018-07-21 04:56:09,982 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 3825 transitions. Word has length 139 [2018-07-21 04:56:09,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 04:56:09,983 INFO L471 AbstractCegarLoop]: Abstraction has 2476 states and 3825 transitions. [2018-07-21 04:56:09,983 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 04:56:09,983 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 3825 transitions. [2018-07-21 04:56:09,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2018-07-21 04:56:09,997 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:56:09,997 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-21 04:56:09,997 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 04:56:09,998 INFO L82 PathProgramCache]: Analyzing trace with hash -221421350, now seen corresponding path program 1 times [2018-07-21 04:56:09,998 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:56:10,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:56:10,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:56:10,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:56:10,001 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:56:10,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:56:10,485 WARN L169 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 04:56:11,009 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 60 proven. 97 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-21 04:56:11,009 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 04:56:11,009 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 04:56:11,011 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 285 with the following transitions: [2018-07-21 04:56:11,014 INFO L201 CegarAbsIntRunner]: [0], [1], [183], [187], [193], [197], [199], [204], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [399], [401], [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], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [824], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [996], [1576], [1577], [1578], [1579], [1581], [1582] [2018-07-21 04:56:11,115 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 04:56:11,115 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 04:56:25,263 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 04:56:25,265 INFO L272 AbstractInterpreter]: Visited 150 different actions 150 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-21 04:56:25,274 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 04:56:36,144 INFO L232 lantSequenceWeakener]: Weakened 276 states. On average, predicates are now at 77.66% of their original sizes. [2018-07-21 04:56:36,144 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 04:56:36,984 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 04:56:37,014 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 04:56:37,015 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2018-07-21 04:56:37,015 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:56:37,016 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-21 04:56:37,016 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-21 04:56:37,016 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-07-21 04:56:37,016 INFO L87 Difference]: Start difference. First operand 2476 states and 3825 transitions. Second operand 9 states. [2018-07-21 04:56:49,234 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown