java -Xmx8000000000 -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 csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label34_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 19:43:20,606 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 19:43:20,610 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 19:43:20,629 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 19:43:20,630 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 19:43:20,631 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 19:43:20,633 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 19:43:20,636 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 19:43:20,640 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 19:43:20,643 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 19:43:20,646 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 19:43:20,647 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 19:43:20,648 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 19:43:20,648 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 19:43:20,652 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 19:43:20,653 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 19:43:20,654 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 19:43:20,660 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 19:43:20,663 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 19:43:20,669 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 19:43:20,670 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 19:43:20,672 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 19:43:20,674 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-23 19:43:20,680 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 19:43:20,681 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 19:43:20,682 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 19:43:20,682 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 19:43:20,683 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 19:43:20,706 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 19:43:20,706 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 19:43:20,707 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 19:43:20,711 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 19:43:20,711 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 19:43:20,711 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 19:43:20,711 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 19:43:20,712 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 19:43:20,712 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 19:43:20,712 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 19:43:20,712 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 19:43:20,713 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 19:43:20,714 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 19:43:20,715 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 19:43:20,715 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 19:43:20,715 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 19:43:20,715 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 19:43:20,715 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 19:43:20,716 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 19:43:20,716 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 19:43:20,716 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 19:43:20,717 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 19:43:20,718 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 19:43:20,718 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 19:43:20,718 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 19:43:20,718 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 19:43:20,718 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 19:43:20,719 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 19:43:20,719 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 19:43:20,719 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 19:43:20,719 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 19:43:20,720 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 19:43:20,720 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 19:43:20,805 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 19:43:20,821 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 19:43:20,827 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 19:43:20,829 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 19:43:20,830 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 19:43:20,831 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label34_false-unreach-call.c [2018-07-23 19:43:21,186 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9174df7a4/be1e289b930a42dfa506e7a954436c3d/FLAGff4f400ef [2018-07-23 19:43:21,571 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 19:43:21,572 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label34_false-unreach-call.c [2018-07-23 19:43:21,603 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9174df7a4/be1e289b930a42dfa506e7a954436c3d/FLAGff4f400ef [2018-07-23 19:43:21,620 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9174df7a4/be1e289b930a42dfa506e7a954436c3d [2018-07-23 19:43:21,632 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 19:43:21,634 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 19:43:21,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 19:43:21,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 19:43:21,642 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 19:43:21,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:43:21" (1/1) ... [2018-07-23 19:43:21,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3819ccc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:21, skipping insertion in model container [2018-07-23 19:43:21,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:43:21" (1/1) ... [2018-07-23 19:43:21,939 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 19:43:22,698 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:43:22,715 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 19:43:23,010 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:43:23,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:23 WrapperNode [2018-07-23 19:43:23,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 19:43:23,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 19:43:23,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 19:43:23,160 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 19:43:23,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:23" (1/1) ... [2018-07-23 19:43:23,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:23" (1/1) ... [2018-07-23 19:43:23,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 19:43:23,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 19:43:23,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 19:43:23,420 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 19:43:23,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:23" (1/1) ... [2018-07-23 19:43:23,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:23" (1/1) ... [2018-07-23 19:43:23,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:23" (1/1) ... [2018-07-23 19:43:23,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:23" (1/1) ... [2018-07-23 19:43:24,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:23" (1/1) ... [2018-07-23 19:43:24,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:23" (1/1) ... [2018-07-23 19:43:24,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:23" (1/1) ... [2018-07-23 19:43:24,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 19:43:24,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 19:43:24,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 19:43:24,109 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 19:43:24,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:23" (1/1) ... No working directory specified, using /storage/repos/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 [2018-07-23 19:43:24,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 19:43:24,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 19:43:24,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 19:43:24,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 19:43:24,181 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 19:43:24,181 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 19:43:24,181 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-23 19:43:24,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-23 19:43:24,181 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-23 19:43:24,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-23 19:43:31,018 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 19:43:31,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:43:31 BoogieIcfgContainer [2018-07-23 19:43:31,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 19:43:31,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 19:43:31,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 19:43:31,024 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 19:43:31,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 07:43:21" (1/3) ... [2018-07-23 19:43:31,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382dce4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:43:31, skipping insertion in model container [2018-07-23 19:43:31,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:43:23" (2/3) ... [2018-07-23 19:43:31,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382dce4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:43:31, skipping insertion in model container [2018-07-23 19:43:31,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:43:31" (3/3) ... [2018-07-23 19:43:31,028 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label34_false-unreach-call.c [2018-07-23 19:43:31,036 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 19:43:31,048 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 19:43:31,108 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 19:43:31,109 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 19:43:31,109 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 19:43:31,109 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 19:43:31,109 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 19:43:31,109 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 19:43:31,110 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 19:43:31,110 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 19:43:31,110 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 19:43:31,150 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-07-23 19:43:31,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-07-23 19:43:31,157 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:43:31,158 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:43:31,159 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:43:31,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1115023556, now seen corresponding path program 1 times [2018-07-23 19:43:31,167 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:43:31,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:43:31,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:43:31,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:43:31,217 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:43:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:43:31,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:43:31,633 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:43:31,633 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 19:43:31,633 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:43:31,640 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 19:43:31,656 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 19:43:31,657 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 19:43:31,660 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-07-23 19:43:41,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:43:41,105 INFO L93 Difference]: Finished difference Result 1558 states and 2849 transitions. [2018-07-23 19:43:41,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 19:43:41,108 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-07-23 19:43:41,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:43:41,139 INFO L225 Difference]: With dead ends: 1558 [2018-07-23 19:43:41,139 INFO L226 Difference]: Without dead ends: 1114 [2018-07-23 19:43:41,151 INFO L573 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 [2018-07-23 19:43:41,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2018-07-23 19:43:41,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1091. [2018-07-23 19:43:41,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1091 states. [2018-07-23 19:43:41,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1853 transitions. [2018-07-23 19:43:41,281 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1853 transitions. Word has length 20 [2018-07-23 19:43:41,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:43:41,281 INFO L471 AbstractCegarLoop]: Abstraction has 1091 states and 1853 transitions. [2018-07-23 19:43:41,282 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 19:43:41,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1853 transitions. [2018-07-23 19:43:41,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-07-23 19:43:41,287 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:43:41,287 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 19:43:41,288 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:43:41,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1773132938, now seen corresponding path program 1 times [2018-07-23 19:43:41,288 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:43:41,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:43:41,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:43:41,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:43:41,290 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:43:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:43:41,762 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:43:41,763 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:43:41,763 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 19:43:41,763 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:43:41,765 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 19:43:41,766 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 19:43:41,766 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-23 19:43:41,766 INFO L87 Difference]: Start difference. First operand 1091 states and 1853 transitions. Second operand 6 states. [2018-07-23 19:43:51,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:43:51,385 INFO L93 Difference]: Finished difference Result 3242 states and 5584 transitions. [2018-07-23 19:43:51,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-23 19:43:51,393 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2018-07-23 19:43:51,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:43:51,415 INFO L225 Difference]: With dead ends: 3242 [2018-07-23 19:43:51,415 INFO L226 Difference]: Without dead ends: 2157 [2018-07-23 19:43:51,422 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-23 19:43:51,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2157 states. [2018-07-23 19:43:51,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2157 to 2114. [2018-07-23 19:43:51,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2114 states. [2018-07-23 19:43:51,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2114 states to 2114 states and 3176 transitions. [2018-07-23 19:43:51,514 INFO L78 Accepts]: Start accepts. Automaton has 2114 states and 3176 transitions. Word has length 93 [2018-07-23 19:43:51,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:43:51,514 INFO L471 AbstractCegarLoop]: Abstraction has 2114 states and 3176 transitions. [2018-07-23 19:43:51,514 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 19:43:51,515 INFO L276 IsEmpty]: Start isEmpty. Operand 2114 states and 3176 transitions. [2018-07-23 19:43:51,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-07-23 19:43:51,519 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:43:51,519 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:43:51,520 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:43:51,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1298736506, now seen corresponding path program 1 times [2018-07-23 19:43:51,520 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:43:51,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:43:51,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:43:51,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:43:51,522 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:43:51,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:43:52,098 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:43:52,099 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:43:52,099 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:43:52,100 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 102 with the following transitions: [2018-07-23 19:43:52,102 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [98], [105], [113], [121], [129], [137], [145], [153], [157], [159], [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], [522], [530], [538], [546], [554], [562], [570], [578], [586], [591], [595], [606], [610], [614], [618], [622], [626], [630], [634], [638], [641], [1659], [1660], [1661], [1662], [1664], [1665] [2018-07-23 19:43:52,199 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:43:52,199 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:43:55,817 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:43:55,818 INFO L272 AbstractInterpreter]: Visited 85 different actions 85 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-23 19:43:55,854 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:43:57,725 INFO L232 lantSequenceWeakener]: Weakened 96 states. On average, predicates are now at 77.51% of their original sizes. [2018-07-23 19:43:57,725 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:43:58,029 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:43:58,030 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:43:58,030 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2018-07-23 19:43:58,030 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:43:58,031 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 19:43:58,031 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 19:43:58,031 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 19:43:58,032 INFO L87 Difference]: Start difference. First operand 2114 states and 3176 transitions. Second operand 7 states. [2018-07-23 19:44:02,849 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:44:42,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:44:42,741 INFO L93 Difference]: Finished difference Result 4532 states and 6731 transitions. [2018-07-23 19:44:42,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:44:42,742 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 101 [2018-07-23 19:44:42,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:44:42,755 INFO L225 Difference]: With dead ends: 4532 [2018-07-23 19:44:42,755 INFO L226 Difference]: Without dead ends: 2424 [2018-07-23 19:44:42,763 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 101 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-23 19:44:42,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2424 states. [2018-07-23 19:44:42,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2424 to 2422. [2018-07-23 19:44:42,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2422 states. [2018-07-23 19:44:42,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2422 states to 2422 states and 3492 transitions. [2018-07-23 19:44:42,831 INFO L78 Accepts]: Start accepts. Automaton has 2422 states and 3492 transitions. Word has length 101 [2018-07-23 19:44:42,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:44:42,832 INFO L471 AbstractCegarLoop]: Abstraction has 2422 states and 3492 transitions. [2018-07-23 19:44:42,832 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 19:44:42,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2422 states and 3492 transitions. [2018-07-23 19:44:42,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-07-23 19:44:42,836 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:44:42,837 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:44:42,837 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:44:42,837 INFO L82 PathProgramCache]: Analyzing trace with hash -109695439, now seen corresponding path program 1 times [2018-07-23 19:44:42,837 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:44:42,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:44:42,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:44:42,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:44:42,839 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:44:42,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:44:43,913 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 33 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:44:43,914 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:44:43,914 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:44:43,914 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 198 with the following transitions: [2018-07-23 19:44:43,915 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [98], [105], [113], [121], [129], [137], [145], [153], [157], [159], [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], [522], [530], [538], [546], [554], [562], [570], [578], [586], [591], [595], [606], [610], [614], [618], [622], [626], [630], [634], [638], [641], [642], [646], [650], [654], [665], [669], [673], [677], [681], [692], [696], [700], [704], [708], [712], [715], [1659], [1660], [1661], [1662], [1664], [1665] [2018-07-23 19:44:43,921 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:44:43,921 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:44:47,269 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:44:59,700 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:44:59,700 INFO L272 AbstractInterpreter]: Visited 104 different actions 397 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 19:44:59,709 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:45:01,845 INFO L232 lantSequenceWeakener]: Weakened 195 states. On average, predicates are now at 77.48% of their original sizes. [2018-07-23 19:45:01,845 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:45:02,622 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:45:02,622 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:45:02,623 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 20 [2018-07-23 19:45:02,623 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:45:02,624 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 19:45:02,624 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 19:45:02,624 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-07-23 19:45:02,625 INFO L87 Difference]: Start difference. First operand 2422 states and 3492 transitions. Second operand 11 states. [2018-07-23 19:46:59,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:46:59,386 INFO L93 Difference]: Finished difference Result 5131 states and 7407 transitions. [2018-07-23 19:46:59,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-23 19:46:59,386 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 197 [2018-07-23 19:46:59,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:46:59,402 INFO L225 Difference]: With dead ends: 5131 [2018-07-23 19:46:59,402 INFO L226 Difference]: Without dead ends: 3023 [2018-07-23 19:46:59,411 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 204 GetRequests, 179 SyntacticMatches, 8 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2018-07-23 19:46:59,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3023 states. [2018-07-23 19:46:59,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3023 to 2736. [2018-07-23 19:46:59,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2736 states. [2018-07-23 19:46:59,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2736 states to 2736 states and 3821 transitions. [2018-07-23 19:46:59,490 INFO L78 Accepts]: Start accepts. Automaton has 2736 states and 3821 transitions. Word has length 197 [2018-07-23 19:46:59,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:46:59,491 INFO L471 AbstractCegarLoop]: Abstraction has 2736 states and 3821 transitions. [2018-07-23 19:46:59,491 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 19:46:59,491 INFO L276 IsEmpty]: Start isEmpty. Operand 2736 states and 3821 transitions. [2018-07-23 19:46:59,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2018-07-23 19:46:59,497 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:46:59,498 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:46:59,498 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:46:59,498 INFO L82 PathProgramCache]: Analyzing trace with hash 219281706, now seen corresponding path program 1 times [2018-07-23 19:46:59,498 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:46:59,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:46:59,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:46:59,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:46:59,500 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:46:59,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:47:00,105 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-23 19:47:00,106 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:47:00,106 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:47:00,106 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 308 with the following transitions: [2018-07-23 19:47:00,108 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [98], [105], [113], [121], [129], [137], [145], [153], [157], [159], [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], [522], [530], [538], [546], [554], [562], [570], [578], [586], [591], [595], [606], [610], [614], [618], [622], [626], [630], [634], [638], [642], [646], [650], [654], [665], [669], [673], [677], [681], [692], [696], [700], [704], [708], [712], [716], [720], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [822], [833], [837], [848], [859], [863], [874], [878], [889], [893], [897], [901], [905], [909], [920], [924], [928], [932], [936], [940], [944], [948], [959], [963], [967], [971], [975], [979], [983], [987], [991], [995], [999], [1003], [1007], [1011], [1015], [1026], [1030], [1034], [1038], [1042], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1215], [1226], [1230], [1234], [1238], [1242], [1253], [1257], [1261], [1265], [1269], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1360], [1364], [1368], [1372], [1376], [1380], [1391], [1395], [1399], [1403], [1407], [1418], [1422], [1426], [1430], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1476], [1480], [1484], [1495], [1499], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1574], [1578], [1582], [1586], [1590], [1594], [1605], [1609], [1613], [1617], [1621], [1625], [1636], [1640], [1644], [1647], [1659], [1660], [1661], [1662], [1664], [1665] [2018-07-23 19:47:00,120 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:47:00,120 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-07-23 19:47:10,150 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-23 19:47:10,151 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-23 19:47:10,152 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-23 19:47:10,152 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:47:10,152 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/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 [2018-07-23 19:47:10,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:47:10,165 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 19:47:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:47:10,318 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 19:47:10,333 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-23 19:47:10,534 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 19:47:10,535 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 19:47:10,539 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 19:47:10,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 07:47:10 BoogieIcfgContainer [2018-07-23 19:47:10,540 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 19:47:10,541 INFO L168 Benchmark]: Toolchain (without parser) took 228908.40 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-07-23 19:47:10,543 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 19:47:10,543 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1524.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-07-23 19:47:10,544 INFO L168 Benchmark]: Boogie Procedure Inliner took 259.41 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-23 19:47:10,545 INFO L168 Benchmark]: Boogie Preprocessor took 688.65 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 885.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2018-07-23 19:47:10,546 INFO L168 Benchmark]: RCFGBuilder took 6910.88 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 317.2 MB). Peak memory consumption was 317.2 MB. Max. memory is 7.1 GB. [2018-07-23 19:47:10,547 INFO L168 Benchmark]: TraceAbstraction took 219519.77 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 2.0 GB in the beginning and 2.8 GB in the end (delta: -794.9 MB). Peak memory consumption was 850.3 MB. Max. memory is 7.1 GB. [2018-07-23 19:47:10,552 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1524.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 259.41 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 688.65 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 885.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6910.88 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 317.2 MB). Peak memory consumption was 317.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 219519.77 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 2.0 GB in the beginning and 2.8 GB in the end (delta: -794.9 MB). Peak memory consumption was 850.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 46]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 46). Cancelled while BasicCegarLoop was analyzing trace of length 308 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 219.4s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 180.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1372 SDtfs, 5115 SDslu, 1279 SDs, 0 SdLazy, 7257 SolverSat, 1258 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 118.8s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 322 GetRequests, 281 SyntacticMatches, 8 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2736occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 29.5s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9931820407363885 AbsIntWeakeningRatio, 0.1554054054054054 AbsIntAvgWeakeningVarsNumRemoved, 634.5337837837837 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 355 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 411 NumberOfCodeBlocks, 411 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 407 ConstructedInterpolants, 0 QuantifiedInterpolants, 567629 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 50/133 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/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label34_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_19-47-10-569.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label34_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_19-47-10-569.csv Completed graceful shutdown