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/Problem17_label45_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 20:01:59,864 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 20:01:59,866 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 20:01:59,885 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 20:01:59,886 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 20:01:59,887 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 20:01:59,889 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 20:01:59,892 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 20:01:59,894 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 20:01:59,896 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 20:01:59,897 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 20:01:59,897 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 20:01:59,898 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 20:01:59,899 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 20:01:59,903 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 20:01:59,903 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 20:01:59,904 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 20:01:59,918 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 20:01:59,920 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 20:01:59,922 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 20:01:59,923 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 20:01:59,924 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 20:01:59,929 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-21 20:01:59,937 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 20:01:59,938 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 20:01:59,942 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 20:01:59,943 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 20:01:59,943 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 20:01:59,968 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 20:01:59,968 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 20:01:59,971 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 20:01:59,971 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 20:01:59,971 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 20:01:59,971 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 20:01:59,971 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 20:01:59,972 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 20:01:59,972 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 20:01:59,972 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 20:01:59,972 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 20:01:59,972 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 20:01:59,973 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 20:01:59,973 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 20:01:59,973 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 20:01:59,974 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 20:01:59,974 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 20:01:59,975 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 20:01:59,975 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 20:01:59,975 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 20:01:59,975 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 20:01:59,975 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 20:01:59,976 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 20:01:59,976 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 20:01:59,976 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 20:01:59,976 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 20:01:59,976 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 20:01:59,976 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 20:01:59,977 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 20:01:59,977 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 20:01:59,977 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 20:01:59,977 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 20:01:59,977 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 20:01:59,978 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 20:01:59,978 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 20:02:00,031 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 20:02:00,048 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 20:02:00,056 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 20:02:00,057 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 20:02:00,058 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 20:02:00,059 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label45_true-unreach-call.c [2018-07-21 20:02:00,462 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/49db1753e/9bdc4a5d45954326b33714e347624724/FLAGb24a571e5 [2018-07-21 20:02:00,917 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 20:02:00,918 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label45_true-unreach-call.c [2018-07-21 20:02:00,971 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/49db1753e/9bdc4a5d45954326b33714e347624724/FLAGb24a571e5 [2018-07-21 20:02:00,993 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/49db1753e/9bdc4a5d45954326b33714e347624724 [2018-07-21 20:02:01,007 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 20:02:01,015 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 20:02:01,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 20:02:01,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 20:02:01,026 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 20:02:01,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:02:00" (1/1) ... [2018-07-21 20:02:01,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58713257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:01, skipping insertion in model container [2018-07-21 20:02:01,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:02:00" (1/1) ... [2018-07-21 20:02:01,382 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 20:02:02,377 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 20:02:02,397 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 20:02:02,958 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 20:02:03,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:03 WrapperNode [2018-07-21 20:02:03,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 20:02:03,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 20:02:03,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 20:02:03,136 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 20:02:03,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:03" (1/1) ... [2018-07-21 20:02:03,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:03" (1/1) ... [2018-07-21 20:02:03,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 20:02:03,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 20:02:03,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 20:02:03,517 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 20:02:03,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:03" (1/1) ... [2018-07-21 20:02:03,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:03" (1/1) ... [2018-07-21 20:02:03,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:03" (1/1) ... [2018-07-21 20:02:03,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:03" (1/1) ... [2018-07-21 20:02:03,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:03" (1/1) ... [2018-07-21 20:02:04,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:03" (1/1) ... [2018-07-21 20:02:04,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:03" (1/1) ... [2018-07-21 20:02:04,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 20:02:04,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 20:02:04,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 20:02:04,662 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 20:02:04,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:03" (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 20:02:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 20:02:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 20:02:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 20:02:04,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 20:02:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 20:02:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 20:02:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-21 20:02:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-21 20:02:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 20:02:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 20:02:15,524 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 20:02:15,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:02:15 BoogieIcfgContainer [2018-07-21 20:02:15,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 20:02:15,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 20:02:15,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 20:02:15,530 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 20:02:15,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:02:00" (1/3) ... [2018-07-21 20:02:15,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e627d0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:02:15, skipping insertion in model container [2018-07-21 20:02:15,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:02:03" (2/3) ... [2018-07-21 20:02:15,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e627d0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:02:15, skipping insertion in model container [2018-07-21 20:02:15,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:02:15" (3/3) ... [2018-07-21 20:02:15,536 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label45_true-unreach-call.c [2018-07-21 20:02:15,544 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 20:02:15,556 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 20:02:15,622 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 20:02:15,623 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 20:02:15,623 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 20:02:15,623 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 20:02:15,623 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 20:02:15,623 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 20:02:15,624 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 20:02:15,624 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 20:02:15,624 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 20:02:15,666 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-07-21 20:02:15,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-07-21 20:02:15,676 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:02:15,677 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 20:02:15,678 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:02:15,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1366976790, now seen corresponding path program 1 times [2018-07-21 20:02:15,687 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:02:15,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:02:15,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:02:15,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:02:15,748 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:02:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:02:16,203 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 20:02:16,205 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 20:02:16,206 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 20:02:16,206 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:02:16,211 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 20:02:16,226 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 20:02:16,227 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 20:02:16,229 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-07-21 20:02:24,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:02:24,874 INFO L93 Difference]: Finished difference Result 2166 states and 4013 transitions. [2018-07-21 20:02:24,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 20:02:24,877 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2018-07-21 20:02:24,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:02:24,923 INFO L225 Difference]: With dead ends: 2166 [2018-07-21 20:02:24,923 INFO L226 Difference]: Without dead ends: 1556 [2018-07-21 20:02:24,935 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 20:02:24,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2018-07-21 20:02:25,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1068. [2018-07-21 20:02:25,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2018-07-21 20:02:25,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1850 transitions. [2018-07-21 20:02:25,082 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1850 transitions. Word has length 57 [2018-07-21 20:02:25,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:02:25,083 INFO L471 AbstractCegarLoop]: Abstraction has 1068 states and 1850 transitions. [2018-07-21 20:02:25,084 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 20:02:25,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1850 transitions. [2018-07-21 20:02:25,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-07-21 20:02:25,094 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:02:25,094 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 20:02:25,095 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:02:25,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1010081327, now seen corresponding path program 1 times [2018-07-21 20:02:25,095 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:02:25,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:02:25,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:02:25,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:02:25,100 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:02:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:02:25,417 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 20:02:25,417 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 20:02:25,418 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 20:02:25,419 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:02:25,421 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 20:02:25,421 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 20:02:25,422 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 20:02:25,422 INFO L87 Difference]: Start difference. First operand 1068 states and 1850 transitions. Second operand 6 states. [2018-07-21 20:02:35,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:02:35,346 INFO L93 Difference]: Finished difference Result 3059 states and 5419 transitions. [2018-07-21 20:02:35,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 20:02:35,347 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2018-07-21 20:02:35,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:02:35,367 INFO L225 Difference]: With dead ends: 3059 [2018-07-21 20:02:35,368 INFO L226 Difference]: Without dead ends: 1997 [2018-07-21 20:02:35,373 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 20:02:35,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2018-07-21 20:02:35,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1975. [2018-07-21 20:02:35,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1975 states. [2018-07-21 20:02:35,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1975 states to 1975 states and 3181 transitions. [2018-07-21 20:02:35,485 INFO L78 Accepts]: Start accepts. Automaton has 1975 states and 3181 transitions. Word has length 133 [2018-07-21 20:02:35,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:02:35,486 INFO L471 AbstractCegarLoop]: Abstraction has 1975 states and 3181 transitions. [2018-07-21 20:02:35,488 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 20:02:35,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1975 states and 3181 transitions. [2018-07-21 20:02:35,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-07-21 20:02:35,504 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:02:35,504 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-21 20:02:35,505 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:02:35,505 INFO L82 PathProgramCache]: Analyzing trace with hash -128251977, now seen corresponding path program 1 times [2018-07-21 20:02:35,505 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:02:35,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:02:35,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:02:35,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:02:35,507 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:02:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:02:35,834 WARN L169 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 20:02:36,209 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 20:02:36,210 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 20:02:36,212 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 20:02:36,213 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:02:36,213 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 20:02:36,214 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 20:02:36,214 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 20:02:36,214 INFO L87 Difference]: Start difference. First operand 1975 states and 3181 transitions. Second operand 6 states. [2018-07-21 20:02:41,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:02:41,773 INFO L93 Difference]: Finished difference Result 4880 states and 7834 transitions. [2018-07-21 20:02:41,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 20:02:41,774 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 137 [2018-07-21 20:02:41,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:02:41,798 INFO L225 Difference]: With dead ends: 4880 [2018-07-21 20:02:41,798 INFO L226 Difference]: Without dead ends: 2911 [2018-07-21 20:02:41,807 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 20:02:41,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2018-07-21 20:02:41,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2880. [2018-07-21 20:02:41,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2880 states. [2018-07-21 20:02:41,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 3936 transitions. [2018-07-21 20:02:41,944 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 3936 transitions. Word has length 137 [2018-07-21 20:02:41,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:02:41,944 INFO L471 AbstractCegarLoop]: Abstraction has 2880 states and 3936 transitions. [2018-07-21 20:02:41,945 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 20:02:41,945 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 3936 transitions. [2018-07-21 20:02:41,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-07-21 20:02:41,949 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:02:41,949 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-21 20:02:41,949 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:02:41,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1574320198, now seen corresponding path program 1 times [2018-07-21 20:02:41,950 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:02:41,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:02:41,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:02:41,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:02:41,951 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:02:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:02:42,259 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 20:02:42,259 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 20:02:42,259 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 20:02:42,259 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:02:42,260 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 20:02:42,260 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 20:02:42,260 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 20:02:42,261 INFO L87 Difference]: Start difference. First operand 2880 states and 3936 transitions. Second operand 4 states. [2018-07-21 20:02:47,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:02:47,500 INFO L93 Difference]: Finished difference Result 5754 states and 7882 transitions. [2018-07-21 20:02:47,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 20:02:47,501 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 167 [2018-07-21 20:02:47,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:02:47,516 INFO L225 Difference]: With dead ends: 5754 [2018-07-21 20:02:47,516 INFO L226 Difference]: Without dead ends: 2880 [2018-07-21 20:02:47,528 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 20:02:47,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2880 states. [2018-07-21 20:02:47,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2880 to 2880. [2018-07-21 20:02:47,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2880 states. [2018-07-21 20:02:47,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 3720 transitions. [2018-07-21 20:02:47,631 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 3720 transitions. Word has length 167 [2018-07-21 20:02:47,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:02:47,632 INFO L471 AbstractCegarLoop]: Abstraction has 2880 states and 3720 transitions. [2018-07-21 20:02:47,632 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 20:02:47,632 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 3720 transitions. [2018-07-21 20:02:47,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-07-21 20:02:47,637 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:02:47,637 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 20:02:47,637 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:02:47,637 INFO L82 PathProgramCache]: Analyzing trace with hash 831019488, now seen corresponding path program 1 times [2018-07-21 20:02:47,638 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:02:47,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:02:47,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:02:47,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:02:47,639 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:02:47,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:02:47,911 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-07-21 20:02:47,911 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 20:02:47,911 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 20:02:47,911 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:02:47,912 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 20:02:47,912 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 20:02:47,912 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 20:02:47,913 INFO L87 Difference]: Start difference. First operand 2880 states and 3720 transitions. Second operand 3 states. [2018-07-21 20:02:52,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:02:52,259 INFO L93 Difference]: Finished difference Result 8399 states and 11033 transitions. [2018-07-21 20:02:52,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 20:02:52,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2018-07-21 20:02:52,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:02:52,282 INFO L225 Difference]: With dead ends: 8399 [2018-07-21 20:02:52,282 INFO L226 Difference]: Without dead ends: 5525 [2018-07-21 20:02:52,294 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 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 20:02:52,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5525 states. [2018-07-21 20:02:52,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5525 to 5525. [2018-07-21 20:02:52,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5525 states. [2018-07-21 20:02:52,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5525 states to 5525 states and 6667 transitions. [2018-07-21 20:02:52,455 INFO L78 Accepts]: Start accepts. Automaton has 5525 states and 6667 transitions. Word has length 221 [2018-07-21 20:02:52,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:02:52,456 INFO L471 AbstractCegarLoop]: Abstraction has 5525 states and 6667 transitions. [2018-07-21 20:02:52,456 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 20:02:52,456 INFO L276 IsEmpty]: Start isEmpty. Operand 5525 states and 6667 transitions. [2018-07-21 20:02:52,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-07-21 20:02:52,465 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:02:52,465 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:02:52,465 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:02:52,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1459903625, now seen corresponding path program 1 times [2018-07-21 20:02:52,466 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:02:52,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:02:52,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:02:52,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:02:52,469 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:02:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:02:53,083 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 100 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-21 20:02:53,084 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 20:02:53,084 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 20:02:53,085 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 245 with the following transitions: [2018-07-21 20:02:53,087 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [735], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1090], [1092], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1207], [1215], [1223], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1255], [1256], [1260], [1264], [1268], [1279], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1311], [1315], [1319], [1323], [1327], [1331], [1342], [1346], [1350], [1354], [1358], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1408], [2303], [2304], [2305], [2306], [2308], [2309] [2018-07-21 20:02:53,182 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 20:02:53,184 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 20:02:59,385 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 20:03:05,835 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 20:03:05,837 INFO L272 AbstractInterpreter]: Visited 115 different actions 115 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-07-21 20:03:05,883 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 20:03:18,936 INFO L232 lantSequenceWeakener]: Weakened 236 states. On average, predicates are now at 75.72% of their original sizes. [2018-07-21 20:03:18,937 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 20:03:20,307 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 20:03:20,308 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 20:03:20,309 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2018-07-21 20:03:20,309 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:03:20,309 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-21 20:03:20,310 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-21 20:03:20,310 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-07-21 20:03:20,310 INFO L87 Difference]: Start difference. First operand 5525 states and 6667 transitions. Second operand 9 states. Received shutdown request... [2018-07-21 20:05:24,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-21 20:05:24,856 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 20:05:24,861 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 20:05:24,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:05:24 BoogieIcfgContainer [2018-07-21 20:05:24,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 20:05:24,862 INFO L168 Benchmark]: Toolchain (without parser) took 203853.01 ms. Allocated memory was 304.1 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 242.7 MB in the beginning and 770.9 MB in the end (delta: -528.1 MB). Peak memory consumption was 1.8 GB. Max. memory is 5.3 GB. [2018-07-21 20:05:24,863 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 304.1 MB. Free memory is still 269.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 20:05:24,864 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2119.08 ms. Allocated memory was 304.1 MB in the beginning and 335.0 MB in the end (delta: 30.9 MB). Free memory was 241.7 MB in the beginning and 168.6 MB in the end (delta: 73.2 MB). Peak memory consumption was 104.1 MB. Max. memory is 5.3 GB. [2018-07-21 20:05:24,864 INFO L168 Benchmark]: Boogie Procedure Inliner took 380.63 ms. Allocated memory was 335.0 MB in the beginning and 403.7 MB in the end (delta: 68.7 MB). Free memory was 168.6 MB in the beginning and 294.9 MB in the end (delta: -126.4 MB). Peak memory consumption was 28.1 MB. Max. memory is 5.3 GB. [2018-07-21 20:05:24,865 INFO L168 Benchmark]: Boogie Preprocessor took 1144.03 ms. Allocated memory was 403.7 MB in the beginning and 585.6 MB in the end (delta: 181.9 MB). Free memory was 294.9 MB in the beginning and 492.0 MB in the end (delta: -197.1 MB). Peak memory consumption was 54.9 MB. Max. memory is 5.3 GB. [2018-07-21 20:05:24,867 INFO L168 Benchmark]: RCFGBuilder took 10863.93 ms. Allocated memory was 585.6 MB in the beginning and 684.7 MB in the end (delta: 99.1 MB). Free memory was 492.0 MB in the beginning and 480.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 208.1 MB. Max. memory is 5.3 GB. [2018-07-21 20:05:24,867 INFO L168 Benchmark]: TraceAbstraction took 189335.16 ms. Allocated memory was 684.7 MB in the beginning and 2.6 GB in the end (delta: 1.9 GB). Free memory was 480.2 MB in the beginning and 770.9 MB in the end (delta: -290.7 MB). Peak memory consumption was 1.6 GB. Max. memory is 5.3 GB. [2018-07-21 20:05:24,873 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 304.1 MB. Free memory is still 269.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 2119.08 ms. Allocated memory was 304.1 MB in the beginning and 335.0 MB in the end (delta: 30.9 MB). Free memory was 241.7 MB in the beginning and 168.6 MB in the end (delta: 73.2 MB). Peak memory consumption was 104.1 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 380.63 ms. Allocated memory was 335.0 MB in the beginning and 403.7 MB in the end (delta: 68.7 MB). Free memory was 168.6 MB in the beginning and 294.9 MB in the end (delta: -126.4 MB). Peak memory consumption was 28.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 1144.03 ms. Allocated memory was 403.7 MB in the beginning and 585.6 MB in the end (delta: 181.9 MB). Free memory was 294.9 MB in the beginning and 492.0 MB in the end (delta: -197.1 MB). Peak memory consumption was 54.9 MB. Max. memory is 5.3 GB. * RCFGBuilder took 10863.93 ms. Allocated memory was 585.6 MB in the beginning and 684.7 MB in the end (delta: 99.1 MB). Free memory was 492.0 MB in the beginning and 480.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 208.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 189335.16 ms. Allocated memory was 684.7 MB in the beginning and 2.6 GB in the end (delta: 1.9 GB). Free memory was 480.2 MB in the beginning and 770.9 MB in the end (delta: -290.7 MB). Peak memory consumption was 1.6 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 158]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 158). Cancelled while BasicCegarLoop was constructing difference of abstraction (5525states) and interpolant automaton (currently 9 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (3266 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 189.2s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 158.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2315 SDtfs, 7225 SDslu, 1446 SDs, 0 SdLazy, 11619 SolverSat, 2933 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 120.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 282 GetRequests, 250 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5525occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 12.7s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.996011396011396 AbsIntWeakeningRatio, 0.1111111111111111 AbsIntAvgWeakeningVarsNumRemoved, 35.267489711934154 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 541 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 959 NumberOfCodeBlocks, 959 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 953 ConstructedInterpolants, 0 QuantifiedInterpolants, 772018 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 431/503 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/Problem17_label45_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_20-05-24-888.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem17_label45_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_20-05-24-888.csv Completed graceful shutdown