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_label51_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 04:58:23,562 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 04:58:23,565 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 04:58:23,580 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 04:58:23,580 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 04:58:23,581 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 04:58:23,582 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 04:58:23,586 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 04:58:23,587 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 04:58:23,589 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 04:58:23,590 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 04:58:23,590 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 04:58:23,591 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 04:58:23,592 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 04:58:23,595 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 04:58:23,596 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 04:58:23,597 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 04:58:23,598 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 04:58:23,608 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 04:58:23,610 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 04:58:23,611 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 04:58:23,612 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 04:58:23,617 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 04:58:23,617 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 04:58:23,617 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 04:58:23,618 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 04:58:23,618 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 04:58:23,620 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 04:58:23,621 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 04:58:23,622 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 04:58:23,622 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 04:58:23,622 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 04:58:23,623 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 04:58:23,623 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 04:58:23,624 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 04:58:23,626 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 04:58:23,626 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 04:58:23,649 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 04:58:23,649 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 04:58:23,653 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 04:58:23,653 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 04:58:23,653 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 04:58:23,653 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 04:58:23,653 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 04:58:23,654 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 04:58:23,654 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 04:58:23,654 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 04:58:23,654 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 04:58:23,654 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 04:58:23,655 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 04:58:23,655 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 04:58:23,655 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 04:58:23,655 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 04:58:23,658 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 04:58:23,658 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 04:58:23,658 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 04:58:23,658 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 04:58:23,659 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 04:58:23,659 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 04:58:23,659 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 04:58:23,659 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 04:58:23,659 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 04:58:23,660 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 04:58:23,660 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 04:58:23,660 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 04:58:23,660 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 04:58:23,660 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 04:58:23,660 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 04:58:23,661 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 04:58:23,661 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 04:58:23,661 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 04:58:23,661 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 04:58:23,708 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 04:58:23,724 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 04:58:23,727 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 04:58:23,731 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 04:58:23,731 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 04:58:23,732 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label51_false-unreach-call.c [2018-07-21 04:58:24,186 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/21e846cce/f19a4fea2c2d4969a435bb429e0422dc/FLAGe22b8069d [2018-07-21 04:58:24,634 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 04:58:24,635 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label51_false-unreach-call.c [2018-07-21 04:58:24,670 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/21e846cce/f19a4fea2c2d4969a435bb429e0422dc/FLAGe22b8069d [2018-07-21 04:58:24,694 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/21e846cce/f19a4fea2c2d4969a435bb429e0422dc [2018-07-21 04:58:24,705 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 04:58:24,713 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 04:58:24,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 04:58:24,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 04:58:24,722 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 04:58:24,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:58:24" (1/1) ... [2018-07-21 04:58:24,726 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 04:58:24, skipping insertion in model container [2018-07-21 04:58:24,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:58:24" (1/1) ... [2018-07-21 04:58:25,005 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 04:58:25,713 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 04:58:25,732 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 04:58:26,149 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 04:58:26,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:58:26 WrapperNode [2018-07-21 04:58:26,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 04:58:26,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 04:58:26,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 04:58:26,245 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 04:58:26,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:58:26" (1/1) ... [2018-07-21 04:58:26,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:58:26" (1/1) ... [2018-07-21 04:58:26,433 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 04:58:26,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 04:58:26,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 04:58:26,434 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 04:58:26,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:58:26" (1/1) ... [2018-07-21 04:58:26,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:58:26" (1/1) ... [2018-07-21 04:58:26,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:58:26" (1/1) ... [2018-07-21 04:58:26,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:58:26" (1/1) ... [2018-07-21 04:58:26,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:58:26" (1/1) ... [2018-07-21 04:58:26,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:58:26" (1/1) ... [2018-07-21 04:58:26,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:58:26" (1/1) ... [2018-07-21 04:58:26,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 04:58:26,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 04:58:26,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 04:58:26,983 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 04:58:26,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:58:26" (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 04:58:27,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 04:58:27,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 04:58:27,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 04:58:27,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 04:58:27,071 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 04:58:27,071 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 04:58:27,071 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 04:58:27,071 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 04:58:27,071 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 04:58:27,071 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 04:58:32,630 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 04:58:32,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:58:32 BoogieIcfgContainer [2018-07-21 04:58:32,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 04:58:32,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 04:58:32,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 04:58:32,671 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 04:58:32,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:58:24" (1/3) ... [2018-07-21 04:58:32,672 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 04:58:32, skipping insertion in model container [2018-07-21 04:58:32,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:58:26" (2/3) ... [2018-07-21 04:58:32,672 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 04:58:32, skipping insertion in model container [2018-07-21 04:58:32,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:58:32" (3/3) ... [2018-07-21 04:58:32,675 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label51_false-unreach-call.c [2018-07-21 04:58:32,685 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 04:58:32,695 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 04:58:32,750 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 04:58:32,750 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 04:58:32,751 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 04:58:32,751 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 04:58:32,751 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 04:58:32,751 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 04:58:32,751 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 04:58:32,751 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 04:58:32,752 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 04:58:32,785 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-07-21 04:58:32,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-07-21 04:58:32,792 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:58:32,793 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] [2018-07-21 04:58:32,794 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 04:58:32,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1990106541, now seen corresponding path program 1 times [2018-07-21 04:58:32,801 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:58:32,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:58:32,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:58:32,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:58:32,859 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:58:32,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:58:33,232 WARN L169 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-07-21 04:58:33,242 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 04:58:33,245 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 04:58:33,245 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 04:58:33,245 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:58:33,250 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 04:58:33,265 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 04:58:33,266 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 04:58:33,268 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 4 states. [2018-07-21 04:58:38,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 04:58:38,828 INFO L93 Difference]: Finished difference Result 1513 states and 2838 transitions. [2018-07-21 04:58:38,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 04:58:38,830 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-07-21 04:58:38,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 04:58:38,879 INFO L225 Difference]: With dead ends: 1513 [2018-07-21 04:58:38,879 INFO L226 Difference]: Without dead ends: 1097 [2018-07-21 04:58:38,896 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 04:58:38,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2018-07-21 04:58:39,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 744. [2018-07-21 04:58:39,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-07-21 04:58:39,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1357 transitions. [2018-07-21 04:58:39,038 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1357 transitions. Word has length 21 [2018-07-21 04:58:39,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 04:58:39,039 INFO L471 AbstractCegarLoop]: Abstraction has 744 states and 1357 transitions. [2018-07-21 04:58:39,039 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 04:58:39,039 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1357 transitions. [2018-07-21 04:58:39,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-07-21 04:58:39,044 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:58:39,046 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 04:58:39,047 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 04:58:39,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1803732732, now seen corresponding path program 1 times [2018-07-21 04:58:39,047 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:58:39,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:58:39,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:58:39,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:58:39,049 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:58:39,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:58:39,352 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 04:58:39,353 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 04:58:39,353 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 04:58:39,353 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:58:39,355 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 04:58:39,355 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 04:58:39,355 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 04:58:39,356 INFO L87 Difference]: Start difference. First operand 744 states and 1357 transitions. Second operand 5 states. [2018-07-21 04:58:43,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 04:58:43,127 INFO L93 Difference]: Finished difference Result 2196 states and 4092 transitions. [2018-07-21 04:58:43,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 04:58:43,128 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2018-07-21 04:58:43,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 04:58:43,143 INFO L225 Difference]: With dead ends: 2196 [2018-07-21 04:58:43,143 INFO L226 Difference]: Without dead ends: 1458 [2018-07-21 04:58:43,147 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-21 04:58:43,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2018-07-21 04:58:43,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1438. [2018-07-21 04:58:43,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1438 states. [2018-07-21 04:58:43,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 2551 transitions. [2018-07-21 04:58:43,250 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 2551 transitions. Word has length 91 [2018-07-21 04:58:43,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 04:58:43,250 INFO L471 AbstractCegarLoop]: Abstraction has 1438 states and 2551 transitions. [2018-07-21 04:58:43,250 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 04:58:43,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 2551 transitions. [2018-07-21 04:58:43,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-07-21 04:58:43,254 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:58:43,255 INFO L358 BasicCegarLoop]: trace histogram [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 04:58:43,255 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 04:58:43,255 INFO L82 PathProgramCache]: Analyzing trace with hash -2034326759, now seen corresponding path program 1 times [2018-07-21 04:58:43,255 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:58:43,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:58:43,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:58:43,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:58:43,258 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:58:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:58:43,587 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 04:58:43,589 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 04:58:43,590 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 04:58:43,590 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:58:43,590 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 04:58:43,591 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 04:58:43,591 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 04:58:43,591 INFO L87 Difference]: Start difference. First operand 1438 states and 2551 transitions. Second operand 6 states. [2018-07-21 04:58:47,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 04:58:47,922 INFO L93 Difference]: Finished difference Result 4237 states and 7540 transitions. [2018-07-21 04:58:47,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 04:58:47,923 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2018-07-21 04:58:47,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 04:58:47,947 INFO L225 Difference]: With dead ends: 4237 [2018-07-21 04:58:47,947 INFO L226 Difference]: Without dead ends: 2805 [2018-07-21 04:58:47,958 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 04:58:47,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2805 states. [2018-07-21 04:58:48,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2805 to 2785. [2018-07-21 04:58:48,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2785 states. [2018-07-21 04:58:48,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 4352 transitions. [2018-07-21 04:58:48,096 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 4352 transitions. Word has length 94 [2018-07-21 04:58:48,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 04:58:48,117 INFO L471 AbstractCegarLoop]: Abstraction has 2785 states and 4352 transitions. [2018-07-21 04:58:48,117 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 04:58:48,117 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 4352 transitions. [2018-07-21 04:58:48,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-07-21 04:58:48,134 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:58:48,134 INFO L358 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 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 04:58:48,134 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 04:58:48,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1006917675, now seen corresponding path program 1 times [2018-07-21 04:58:48,136 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:58:48,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:58:48,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:58:48,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:58:48,138 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:58:48,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:58:48,592 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 28 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-21 04:58:48,592 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 04:58:48,592 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 04:58:48,593 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 188 with the following transitions: [2018-07-21 04:58:48,596 INFO L201 CegarAbsIntRunner]: [0], [1], [183], [187], [193], [197], [199], [204], [211], [219], [227], [235], [243], [251], [259], [267], [271], [273], [276], [284], [292], [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], [708], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [788], [1576], [1577], [1578], [1579], [1581], [1582] [2018-07-21 04:58:48,684 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 04:58:48,684 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 04:58:57,394 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 04:58:57,395 INFO L272 AbstractInterpreter]: Visited 98 different actions 98 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-21 04:58:57,430 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 04:59:05,112 INFO L232 lantSequenceWeakener]: Weakened 179 states. On average, predicates are now at 77.46% of their original sizes. [2018-07-21 04:59:05,112 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 04:59:06,039 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 04:59:06,040 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 04:59:06,040 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-07-21 04:59:06,041 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:59:06,041 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-21 04:59:06,042 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-21 04:59:06,042 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-21 04:59:06,042 INFO L87 Difference]: Start difference. First operand 2785 states and 4352 transitions. Second operand 8 states. [2018-07-21 04:59:17,686 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 05:01:21,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 05:01:21,476 INFO L93 Difference]: Finished difference Result 5904 states and 9231 transitions. [2018-07-21 05:01:21,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 05:01:21,476 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 187 [2018-07-21 05:01:21,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 05:01:21,495 INFO L225 Difference]: With dead ends: 5904 [2018-07-21 05:01:21,495 INFO L226 Difference]: Without dead ends: 3125 [2018-07-21 05:01:21,506 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 188 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-21 05:01:21,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3125 states. [2018-07-21 05:01:21,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3125 to 3123. [2018-07-21 05:01:21,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3123 states. [2018-07-21 05:01:21,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 4698 transitions. [2018-07-21 05:01:21,648 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 4698 transitions. Word has length 187 [2018-07-21 05:01:21,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 05:01:21,649 INFO L471 AbstractCegarLoop]: Abstraction has 3123 states and 4698 transitions. [2018-07-21 05:01:21,649 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-21 05:01:21,649 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 4698 transitions. [2018-07-21 05:01:21,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2018-07-21 05:01:21,654 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 05:01:21,654 INFO L358 BasicCegarLoop]: trace histogram [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, 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] [2018-07-21 05:01:21,654 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 05:01:21,654 INFO L82 PathProgramCache]: Analyzing trace with hash -710035820, now seen corresponding path program 1 times [2018-07-21 05:01:21,655 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 05:01:21,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:01:21,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 05:01:21,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 05:01:21,657 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 05:01:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 05:01:22,067 WARN L169 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 05:01:22,209 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 29 proven. 22 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-07-21 05:01:22,209 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 05:01:22,209 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 05:01:22,210 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 231 with the following transitions: [2018-07-21 05:01:22,210 INFO L201 CegarAbsIntRunner]: [0], [1], [183], [187], [193], [197], [199], [204], [211], [219], [227], [235], [243], [251], [259], [267], [271], [273], [276], [284], [292], [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], [753], [757], [761], [765], [769], [773], [777], [781], [784], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [884], [1576], [1577], [1578], [1579], [1581], [1582] [2018-07-21 05:01:22,217 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 05:01:22,217 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 05:01:28,587 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 05:01:40,141 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 05:01:40,141 INFO L272 AbstractInterpreter]: Visited 125 different actions 362 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 05:01:40,177 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 05:01:43,247 INFO L232 lantSequenceWeakener]: Weakened 228 states. On average, predicates are now at 77.47% of their original sizes. [2018-07-21 05:01:43,247 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 05:01:46,495 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 05:01:46,496 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 05:01:46,496 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21 [2018-07-21 05:01:46,496 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 05:01:46,496 INFO L450 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-07-21 05:01:46,497 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-07-21 05:01:46,497 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2018-07-21 05:01:46,497 INFO L87 Difference]: Start difference. First operand 3123 states and 4698 transitions. Second operand 17 states. Received shutdown request... [2018-07-21 05:01:47,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 05:01:47,996 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 05:01:48,045 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 05:01:48,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:01:48 BoogieIcfgContainer [2018-07-21 05:01:48,045 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 05:01:48,046 INFO L168 Benchmark]: Toolchain (without parser) took 203339.84 ms. Allocated memory was 307.8 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 248.9 MB in the beginning and 2.1 GB in the end (delta: -1.8 GB). Peak memory consumption was 497.1 MB. Max. memory is 5.3 GB. [2018-07-21 05:01:48,047 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 307.8 MB. Free memory is still 273.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 05:01:48,047 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1529.38 ms. Allocated memory was 307.8 MB in the beginning and 332.9 MB in the end (delta: 25.2 MB). Free memory was 248.9 MB in the beginning and 264.6 MB in the end (delta: -15.7 MB). Peak memory consumption was 74.8 MB. Max. memory is 5.3 GB. [2018-07-21 05:01:48,048 INFO L168 Benchmark]: Boogie Procedure Inliner took 188.27 ms. Allocated memory is still 332.9 MB. Free memory was 264.6 MB in the beginning and 242.2 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 5.3 GB. [2018-07-21 05:01:48,049 INFO L168 Benchmark]: Boogie Preprocessor took 548.64 ms. Allocated memory was 332.9 MB in the beginning and 540.5 MB in the end (delta: 207.6 MB). Free memory was 242.2 MB in the beginning and 491.5 MB in the end (delta: -249.3 MB). Peak memory consumption was 33.9 MB. Max. memory is 5.3 GB. [2018-07-21 05:01:48,050 INFO L168 Benchmark]: RCFGBuilder took 5684.61 ms. Allocated memory was 540.5 MB in the beginning and 541.6 MB in the end (delta: 1.0 MB). Free memory was 491.5 MB in the beginning and 406.7 MB in the end (delta: 84.9 MB). Peak memory consumption was 203.7 MB. Max. memory is 5.3 GB. [2018-07-21 05:01:48,050 INFO L168 Benchmark]: TraceAbstraction took 195377.62 ms. Allocated memory was 541.6 MB in the beginning and 2.6 GB in the end (delta: 2.1 GB). Free memory was 406.7 MB in the beginning and 2.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 421.0 MB. Max. memory is 5.3 GB. [2018-07-21 05:01:48,054 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 307.8 MB. Free memory is still 273.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 1529.38 ms. Allocated memory was 307.8 MB in the beginning and 332.9 MB in the end (delta: 25.2 MB). Free memory was 248.9 MB in the beginning and 264.6 MB in the end (delta: -15.7 MB). Peak memory consumption was 74.8 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 188.27 ms. Allocated memory is still 332.9 MB. Free memory was 264.6 MB in the beginning and 242.2 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 548.64 ms. Allocated memory was 332.9 MB in the beginning and 540.5 MB in the end (delta: 207.6 MB). Free memory was 242.2 MB in the beginning and 491.5 MB in the end (delta: -249.3 MB). Peak memory consumption was 33.9 MB. Max. memory is 5.3 GB. * RCFGBuilder took 5684.61 ms. Allocated memory was 540.5 MB in the beginning and 541.6 MB in the end (delta: 1.0 MB). Free memory was 491.5 MB in the beginning and 406.7 MB in the end (delta: 84.9 MB). Peak memory consumption was 203.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 195377.62 ms. Allocated memory was 541.6 MB in the beginning and 2.6 GB in the end (delta: 2.1 GB). Free memory was 406.7 MB in the beginning and 2.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 421.0 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 49). Cancelled while BasicCegarLoop was constructing difference of abstraction (3123states) and interpolant automaton (currently 7 states, 17 states before enhancement), while ReachableStatesComputation was computing reachable states (44 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 195.3s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 150.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 730 SDtfs, 5355 SDslu, 552 SDs, 0 SdLazy, 7033 SolverSat, 1819 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 118.7s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 446 GetRequests, 386 SyntacticMatches, 18 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3123occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 26.8s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9947267330190326 AbsIntWeakeningRatio, 0.12530120481927712 AbsIntAvgWeakeningVarsNumRemoved, 39.744578313253015 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 395 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 623 NumberOfCodeBlocks, 623 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 618 ConstructedInterpolants, 0 QuantifiedInterpolants, 428719 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 159/249 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_label51_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_05-01-48-067.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem16_label51_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_05-01-48-067.csv Completed graceful shutdown