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/Problem10_label57_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 02:15:34,714 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 02:15:34,716 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 02:15:34,731 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 02:15:34,731 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 02:15:34,732 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 02:15:34,733 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 02:15:34,737 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 02:15:34,740 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 02:15:34,741 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 02:15:34,742 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 02:15:34,742 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 02:15:34,743 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 02:15:34,744 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 02:15:34,747 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 02:15:34,748 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 02:15:34,749 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 02:15:34,761 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 02:15:34,763 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 02:15:34,764 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 02:15:34,765 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 02:15:34,767 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 02:15:34,773 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-21 02:15:34,788 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 02:15:34,817 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 02:15:34,817 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 02:15:34,818 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 02:15:34,818 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 02:15:34,818 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 02:15:34,818 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 02:15:34,819 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 02:15:34,819 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 02:15:34,819 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 02:15:34,819 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 02:15:34,819 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 02:15:34,820 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 02:15:34,820 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 02:15:34,821 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 02:15:34,824 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 02:15:34,824 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 02:15:34,825 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 02:15:34,825 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 02:15:34,825 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 02:15:34,825 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 02:15:34,825 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 02:15:34,826 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 02:15:34,826 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 02:15:34,826 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 02:15:34,826 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 02:15:34,826 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 02:15:34,826 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 02:15:34,827 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 02:15:34,827 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 02:15:34,827 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 02:15:34,827 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 02:15:34,827 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 02:15:34,828 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 02:15:34,830 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 02:15:34,830 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 02:15:34,887 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 02:15:34,902 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 02:15:34,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 02:15:34,913 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 02:15:34,913 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 02:15:34,915 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label57_false-unreach-call.c [2018-07-21 02:15:35,276 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/9c06eddaf/ea407a5ba42848d9b38fe22e11478adc/FLAGa65e4023f [2018-07-21 02:15:35,519 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 02:15:35,524 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label57_false-unreach-call.c [2018-07-21 02:15:35,566 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/9c06eddaf/ea407a5ba42848d9b38fe22e11478adc/FLAGa65e4023f [2018-07-21 02:15:35,587 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/9c06eddaf/ea407a5ba42848d9b38fe22e11478adc [2018-07-21 02:15:35,599 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 02:15:35,606 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 02:15:35,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 02:15:35,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 02:15:35,618 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 02:15:35,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:15:35" (1/1) ... [2018-07-21 02:15:35,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@464c5600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:15:35, skipping insertion in model container [2018-07-21 02:15:35,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:15:35" (1/1) ... [2018-07-21 02:15:35,854 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 02:15:36,113 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 02:15:36,134 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 02:15:36,318 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 02:15:36,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:15:36 WrapperNode [2018-07-21 02:15:36,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 02:15:36,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 02:15:36,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 02:15:36,388 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 02:15:36,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:15:36" (1/1) ... [2018-07-21 02:15:36,437 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:15:36" (1/1) ... [2018-07-21 02:15:36,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 02:15:36,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 02:15:36,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 02:15:36,543 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 02:15:36,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:15:36" (1/1) ... [2018-07-21 02:15:36,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:15:36" (1/1) ... [2018-07-21 02:15:36,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:15:36" (1/1) ... [2018-07-21 02:15:36,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:15:36" (1/1) ... [2018-07-21 02:15:36,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:15:36" (1/1) ... [2018-07-21 02:15:36,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:15:36" (1/1) ... [2018-07-21 02:15:36,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:15:36" (1/1) ... [2018-07-21 02:15:36,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 02:15:36,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 02:15:36,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 02:15:36,654 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 02:15:36,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:15:36" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 02:15:36,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 02:15:36,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 02:15:36,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 02:15:36,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 02:15:36,918 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 02:15:36,919 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 02:15:36,919 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 02:15:36,919 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 02:15:40,314 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 02:15:40,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:15:40 BoogieIcfgContainer [2018-07-21 02:15:40,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 02:15:40,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 02:15:40,317 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 02:15:40,327 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 02:15:40,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 02:15:35" (1/3) ... [2018-07-21 02:15:40,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68bc2b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:15:40, skipping insertion in model container [2018-07-21 02:15:40,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:15:36" (2/3) ... [2018-07-21 02:15:40,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68bc2b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:15:40, skipping insertion in model container [2018-07-21 02:15:40,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:15:40" (3/3) ... [2018-07-21 02:15:40,331 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label57_false-unreach-call.c [2018-07-21 02:15:40,352 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 02:15:40,367 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 02:15:40,441 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 02:15:40,443 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 02:15:40,443 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 02:15:40,443 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 02:15:40,443 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 02:15:40,444 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 02:15:40,444 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 02:15:40,444 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 02:15:40,444 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 02:15:40,483 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-07-21 02:15:40,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-07-21 02:15:40,491 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:15:40,492 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 02:15:40,493 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 02:15:40,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1877159231, now seen corresponding path program 1 times [2018-07-21 02:15:40,501 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:15:40,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:15:40,561 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:15:40,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:15:40,561 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:15:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:15:40,913 WARN L169 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 02:15:41,017 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 02:15:41,020 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 02:15:41,021 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 02:15:41,021 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:15:41,025 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 02:15:41,042 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 02:15:41,043 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 02:15:41,045 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-07-21 02:15:42,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 02:15:42,879 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-07-21 02:15:42,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 02:15:42,881 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-07-21 02:15:42,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 02:15:42,903 INFO L225 Difference]: With dead ends: 574 [2018-07-21 02:15:42,903 INFO L226 Difference]: Without dead ends: 356 [2018-07-21 02:15:42,912 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 02:15:42,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-07-21 02:15:42,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-07-21 02:15:42,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-07-21 02:15:42,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 609 transitions. [2018-07-21 02:15:42,997 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 609 transitions. Word has length 13 [2018-07-21 02:15:42,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 02:15:42,998 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 609 transitions. [2018-07-21 02:15:42,998 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 02:15:42,998 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 609 transitions. [2018-07-21 02:15:43,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-07-21 02:15:43,003 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:15:43,004 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 02:15:43,004 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 02:15:43,004 INFO L82 PathProgramCache]: Analyzing trace with hash -383652928, now seen corresponding path program 1 times [2018-07-21 02:15:43,005 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:15:43,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:15:43,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:15:43,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:15:43,006 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:15:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:15:43,394 WARN L169 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 02:15:43,531 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 02:15:43,532 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 02:15:43,532 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 02:15:43,532 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:15:43,534 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 02:15:43,535 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 02:15:43,535 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 02:15:43,535 INFO L87 Difference]: Start difference. First operand 356 states and 609 transitions. Second operand 6 states. [2018-07-21 02:15:45,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 02:15:45,348 INFO L93 Difference]: Finished difference Result 867 states and 1507 transitions. [2018-07-21 02:15:45,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 02:15:45,367 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2018-07-21 02:15:45,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 02:15:45,372 INFO L225 Difference]: With dead ends: 867 [2018-07-21 02:15:45,373 INFO L226 Difference]: Without dead ends: 517 [2018-07-21 02:15:45,376 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 02:15:45,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2018-07-21 02:15:45,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 508. [2018-07-21 02:15:45,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2018-07-21 02:15:45,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 831 transitions. [2018-07-21 02:15:45,421 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 831 transitions. Word has length 87 [2018-07-21 02:15:45,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 02:15:45,422 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 831 transitions. [2018-07-21 02:15:45,422 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 02:15:45,422 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 831 transitions. [2018-07-21 02:15:45,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-07-21 02:15:45,426 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:15:45,426 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 02:15:45,426 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 02:15:45,427 INFO L82 PathProgramCache]: Analyzing trace with hash 2032194028, now seen corresponding path program 1 times [2018-07-21 02:15:45,427 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:15:45,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:15:45,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:15:45,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:15:45,429 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:15:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:15:45,613 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 02:15:45,614 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 02:15:45,614 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 02:15:45,614 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:15:45,615 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 02:15:45,615 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 02:15:45,616 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 02:15:45,616 INFO L87 Difference]: Start difference. First operand 508 states and 831 transitions. Second operand 3 states. [2018-07-21 02:15:46,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 02:15:46,624 INFO L93 Difference]: Finished difference Result 1448 states and 2461 transitions. [2018-07-21 02:15:46,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 02:15:46,624 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2018-07-21 02:15:46,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 02:15:46,634 INFO L225 Difference]: With dead ends: 1448 [2018-07-21 02:15:46,634 INFO L226 Difference]: Without dead ends: 946 [2018-07-21 02:15:46,638 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 02:15:46,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2018-07-21 02:15:46,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 946. [2018-07-21 02:15:46,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 946 states. [2018-07-21 02:15:46,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1389 transitions. [2018-07-21 02:15:46,700 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1389 transitions. Word has length 93 [2018-07-21 02:15:46,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 02:15:46,701 INFO L471 AbstractCegarLoop]: Abstraction has 946 states and 1389 transitions. [2018-07-21 02:15:46,701 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 02:15:46,701 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1389 transitions. [2018-07-21 02:15:46,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-07-21 02:15:46,707 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:15:46,707 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 02:15:46,708 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 02:15:46,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1326563971, now seen corresponding path program 1 times [2018-07-21 02:15:46,708 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:15:46,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:15:46,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:15:46,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:15:46,710 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:15:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:15:46,871 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 02:15:46,872 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 02:15:46,872 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 02:15:46,872 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:15:46,872 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 02:15:46,873 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 02:15:46,873 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-21 02:15:46,873 INFO L87 Difference]: Start difference. First operand 946 states and 1389 transitions. Second operand 5 states. [2018-07-21 02:15:50,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 02:15:50,331 INFO L93 Difference]: Finished difference Result 3298 states and 5048 transitions. [2018-07-21 02:15:50,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-21 02:15:50,338 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2018-07-21 02:15:50,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 02:15:50,361 INFO L225 Difference]: With dead ends: 3298 [2018-07-21 02:15:50,362 INFO L226 Difference]: Without dead ends: 2358 [2018-07-21 02:15:50,412 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 02:15:50,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2358 states. [2018-07-21 02:15:50,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2358 to 2320. [2018-07-21 02:15:50,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2320 states. [2018-07-21 02:15:50,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 3215 transitions. [2018-07-21 02:15:50,537 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 3215 transitions. Word has length 104 [2018-07-21 02:15:50,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 02:15:50,537 INFO L471 AbstractCegarLoop]: Abstraction has 2320 states and 3215 transitions. [2018-07-21 02:15:50,538 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 02:15:50,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 3215 transitions. [2018-07-21 02:15:50,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-07-21 02:15:50,543 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:15:50,543 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 02:15:50,543 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 02:15:50,543 INFO L82 PathProgramCache]: Analyzing trace with hash 27974927, now seen corresponding path program 1 times [2018-07-21 02:15:50,544 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:15:50,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:15:50,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:15:50,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:15:50,545 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:15:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:15:50,845 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 02:15:50,845 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 02:15:50,846 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 02:15:50,846 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:15:50,846 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 02:15:50,846 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 02:15:50,846 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 02:15:50,847 INFO L87 Difference]: Start difference. First operand 2320 states and 3215 transitions. Second operand 6 states. [2018-07-21 02:15:51,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 02:15:51,984 INFO L93 Difference]: Finished difference Result 6057 states and 9048 transitions. [2018-07-21 02:15:51,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 02:15:51,984 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2018-07-21 02:15:51,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 02:15:52,017 INFO L225 Difference]: With dead ends: 6057 [2018-07-21 02:15:52,019 INFO L226 Difference]: Without dead ends: 3743 [2018-07-21 02:15:52,041 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 02:15:52,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3743 states. [2018-07-21 02:15:52,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3743 to 3682. [2018-07-21 02:15:52,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3682 states. [2018-07-21 02:15:52,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3682 states to 3682 states and 5030 transitions. [2018-07-21 02:15:52,205 INFO L78 Accepts]: Start accepts. Automaton has 3682 states and 5030 transitions. Word has length 126 [2018-07-21 02:15:52,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 02:15:52,205 INFO L471 AbstractCegarLoop]: Abstraction has 3682 states and 5030 transitions. [2018-07-21 02:15:52,205 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 02:15:52,206 INFO L276 IsEmpty]: Start isEmpty. Operand 3682 states and 5030 transitions. [2018-07-21 02:15:52,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-07-21 02:15:52,211 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:15:52,211 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 02:15:52,212 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 02:15:52,212 INFO L82 PathProgramCache]: Analyzing trace with hash 193275480, now seen corresponding path program 1 times [2018-07-21 02:15:52,212 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:15:52,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:15:52,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:15:52,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:15:52,213 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:15:52,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:15:52,390 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 02:15:52,390 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 02:15:52,390 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 02:15:52,391 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:15:52,391 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 02:15:52,391 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 02:15:52,392 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 02:15:52,392 INFO L87 Difference]: Start difference. First operand 3682 states and 5030 transitions. Second operand 3 states. [2018-07-21 02:15:53,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 02:15:53,383 INFO L93 Difference]: Finished difference Result 8168 states and 11529 transitions. [2018-07-21 02:15:53,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 02:15:53,384 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2018-07-21 02:15:53,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 02:15:53,412 INFO L225 Difference]: With dead ends: 8168 [2018-07-21 02:15:53,413 INFO L226 Difference]: Without dead ends: 4492 [2018-07-21 02:15:53,440 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 02:15:53,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4492 states. [2018-07-21 02:15:53,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4492 to 4482. [2018-07-21 02:15:53,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4482 states. [2018-07-21 02:15:53,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4482 states to 4482 states and 5845 transitions. [2018-07-21 02:15:53,651 INFO L78 Accepts]: Start accepts. Automaton has 4482 states and 5845 transitions. Word has length 131 [2018-07-21 02:15:53,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 02:15:53,653 INFO L471 AbstractCegarLoop]: Abstraction has 4482 states and 5845 transitions. [2018-07-21 02:15:53,653 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 02:15:53,653 INFO L276 IsEmpty]: Start isEmpty. Operand 4482 states and 5845 transitions. [2018-07-21 02:15:53,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-07-21 02:15:53,665 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:15:53,665 INFO L358 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 02:15:53,666 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 02:15:53,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1930728597, now seen corresponding path program 1 times [2018-07-21 02:15:53,666 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:15:53,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:15:53,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:15:53,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:15:53,668 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:15:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:15:53,873 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-07-21 02:15:53,874 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 02:15:53,874 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 02:15:53,874 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:15:53,875 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 02:15:53,875 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 02:15:53,875 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 02:15:53,876 INFO L87 Difference]: Start difference. First operand 4482 states and 5845 transitions. Second operand 3 states. [2018-07-21 02:15:55,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 02:15:55,247 INFO L93 Difference]: Finished difference Result 10273 states and 13870 transitions. [2018-07-21 02:15:55,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 02:15:55,249 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2018-07-21 02:15:55,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 02:15:55,282 INFO L225 Difference]: With dead ends: 10273 [2018-07-21 02:15:55,282 INFO L226 Difference]: Without dead ends: 5797 [2018-07-21 02:15:55,310 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 02:15:55,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5797 states. [2018-07-21 02:15:55,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5797 to 5113. [2018-07-21 02:15:55,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5113 states. [2018-07-21 02:15:55,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 6764 transitions. [2018-07-21 02:15:55,575 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 6764 transitions. Word has length 201 [2018-07-21 02:15:55,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 02:15:55,576 INFO L471 AbstractCegarLoop]: Abstraction has 5113 states and 6764 transitions. [2018-07-21 02:15:55,576 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 02:15:55,576 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 6764 transitions. [2018-07-21 02:15:55,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2018-07-21 02:15:55,596 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:15:55,596 INFO L358 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:15:55,596 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 02:15:55,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1032800525, now seen corresponding path program 1 times [2018-07-21 02:15:55,597 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:15:55,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:15:55,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:15:55,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:15:55,598 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:15:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:15:55,958 WARN L169 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 02:15:56,227 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-07-21 02:15:56,228 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 02:15:56,228 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 02:15:56,229 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 236 with the following transitions: [2018-07-21 02:15:56,231 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [29], [31], [34], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [558], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [806], [816], [817], [818], [819], [821], [822] [2018-07-21 02:15:56,307 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 02:15:56,308 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 02:16:09,171 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 02:16:35,796 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 02:16:35,798 INFO L272 AbstractInterpreter]: Visited 150 different actions 866 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-21 02:16:35,813 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 02:16:41,496 INFO L232 lantSequenceWeakener]: Weakened 233 states. On average, predicates are now at 72.68% of their original sizes. [2018-07-21 02:16:41,496 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 02:16:47,940 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 02:16:47,941 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 02:16:47,942 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [8] total 26 [2018-07-21 02:16:47,942 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:16:47,943 INFO L450 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-07-21 02:16:47,943 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-07-21 02:16:47,943 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2018-07-21 02:16:47,943 INFO L87 Difference]: Start difference. First operand 5113 states and 6764 transitions. Second operand 20 states. [2018-07-21 02:18:18,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 02:18:18,901 INFO L93 Difference]: Finished difference Result 11234 states and 14762 transitions. [2018-07-21 02:18:18,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-07-21 02:18:18,901 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 235 [2018-07-21 02:18:18,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 02:18:18,928 INFO L225 Difference]: With dead ends: 11234 [2018-07-21 02:18:18,929 INFO L226 Difference]: Without dead ends: 6127 [2018-07-21 02:18:18,948 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 253 GetRequests, 184 SyntacticMatches, 32 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=386, Invalid=1096, Unknown=0, NotChecked=0, Total=1482 [2018-07-21 02:18:18,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6127 states. [2018-07-21 02:18:19,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6127 to 5924. [2018-07-21 02:18:19,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5924 states. [2018-07-21 02:18:19,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5924 states to 5924 states and 7633 transitions. [2018-07-21 02:18:19,136 INFO L78 Accepts]: Start accepts. Automaton has 5924 states and 7633 transitions. Word has length 235 [2018-07-21 02:18:19,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 02:18:19,136 INFO L471 AbstractCegarLoop]: Abstraction has 5924 states and 7633 transitions. [2018-07-21 02:18:19,137 INFO L472 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-07-21 02:18:19,137 INFO L276 IsEmpty]: Start isEmpty. Operand 5924 states and 7633 transitions. [2018-07-21 02:18:19,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2018-07-21 02:18:19,163 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:18:19,163 INFO L358 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-21 02:18:19,164 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 02:18:19,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1196213755, now seen corresponding path program 1 times [2018-07-21 02:18:19,164 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:18:19,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:18:19,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:18:19,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:18:19,165 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:18:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:18:19,766 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-07-21 02:18:19,766 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 02:18:19,766 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 02:18:19,766 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 272 with the following transitions: [2018-07-21 02:18:19,767 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [29], [31], [34], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [702], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [806], [816], [817], [818], [819], [821], [822] [2018-07-21 02:18:19,774 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 02:18:19,775 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 02:18:34,127 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-21 02:19:08,250 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-21 02:19:08,251 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-21 02:19:08,252 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-21 02:19:08,252 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 02:19:08,252 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 02:19:08,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:19:08,260 INFO L282 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-21 02:19:08,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:19:08,397 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 02:19:08,436 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-21 02:19:08,637 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 02:19:08,637 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 02:19:08,641 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 02:19:08,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 02:19:08 BoogieIcfgContainer [2018-07-21 02:19:08,641 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 02:19:08,642 INFO L168 Benchmark]: Toolchain (without parser) took 213042.87 ms. Allocated memory was 303.6 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 245.0 MB in the beginning and 1.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.2 GB. Max. memory is 5.3 GB. [2018-07-21 02:19:08,643 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 303.6 MB. Free memory is still 267.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 02:19:08,644 INFO L168 Benchmark]: CACSL2BoogieTranslator took 779.05 ms. Allocated memory is still 303.6 MB. Free memory was 245.0 MB in the beginning and 209.9 MB in the end (delta: 35.2 MB). Peak memory consumption was 35.2 MB. Max. memory is 5.3 GB. [2018-07-21 02:19:08,644 INFO L168 Benchmark]: Boogie Procedure Inliner took 154.76 ms. Allocated memory is still 303.6 MB. Free memory was 209.9 MB in the beginning and 201.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 5.3 GB. [2018-07-21 02:19:08,645 INFO L168 Benchmark]: Boogie Preprocessor took 110.67 ms. Allocated memory is still 303.6 MB. Free memory was 201.8 MB in the beginning and 196.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 5.3 GB. [2018-07-21 02:19:08,645 INFO L168 Benchmark]: RCFGBuilder took 3661.80 ms. Allocated memory was 303.6 MB in the beginning and 476.1 MB in the end (delta: 172.5 MB). Free memory was 196.8 MB in the beginning and 334.7 MB in the end (delta: -137.9 MB). Peak memory consumption was 50.9 MB. Max. memory is 5.3 GB. [2018-07-21 02:19:08,646 INFO L168 Benchmark]: TraceAbstraction took 208324.96 ms. Allocated memory was 476.1 MB in the beginning and 2.6 GB in the end (delta: 2.1 GB). Free memory was 334.7 MB in the beginning and 1.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.1 GB. Max. memory is 5.3 GB. [2018-07-21 02:19:08,650 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 303.6 MB. Free memory is still 267.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 779.05 ms. Allocated memory is still 303.6 MB. Free memory was 245.0 MB in the beginning and 209.9 MB in the end (delta: 35.2 MB). Peak memory consumption was 35.2 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 154.76 ms. Allocated memory is still 303.6 MB. Free memory was 209.9 MB in the beginning and 201.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 110.67 ms. Allocated memory is still 303.6 MB. Free memory was 201.8 MB in the beginning and 196.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 3661.80 ms. Allocated memory was 303.6 MB in the beginning and 476.1 MB in the end (delta: 172.5 MB). Free memory was 196.8 MB in the beginning and 334.7 MB in the end (delta: -137.9 MB). Peak memory consumption was 50.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 208324.96 ms. Allocated memory was 476.1 MB in the beginning and 2.6 GB in the end (delta: 2.1 GB). Free memory was 334.7 MB in the beginning and 1.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.1 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 22]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 22). Cancelled while BasicCegarLoop was analyzing trace of length 272 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 8 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 208.2s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 102.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1420 SDtfs, 4571 SDslu, 1181 SDs, 0 SdLazy, 6562 SolverSat, 1218 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 62.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 297 GetRequests, 202 SyntacticMatches, 36 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 9.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5924occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 88.0s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9949600520252697 AbsIntWeakeningRatio, 0.1111111111111111 AbsIntAvgWeakeningVarsNumRemoved, 139.15811965811966 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 1005 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 990 NumberOfCodeBlocks, 990 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 982 ConstructedInterpolants, 0 QuantifiedInterpolants, 502039 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 219/225 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/Problem10_label57_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_02-19-08-676.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem10_label57_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_02-19-08-676.csv Completed graceful shutdown