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_label36_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 22:41:35,898 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 22:41:35,900 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 22:41:35,912 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 22:41:35,912 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 22:41:35,913 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 22:41:35,915 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 22:41:35,917 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 22:41:35,919 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 22:41:35,919 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 22:41:35,920 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 22:41:35,921 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 22:41:35,922 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 22:41:35,923 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 22:41:35,924 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 22:41:35,925 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 22:41:35,925 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 22:41:35,927 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 22:41:35,929 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 22:41:35,931 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 22:41:35,932 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 22:41:35,934 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 22:41:35,936 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-23 22:41:35,943 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 22:41:35,946 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 22:41:35,948 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 22:41:35,952 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 22:41:35,952 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 22:41:35,969 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 22:41:35,969 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 22:41:35,972 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 22:41:35,972 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 22:41:35,972 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 22:41:35,973 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 22:41:35,973 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 22:41:35,973 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 22:41:35,973 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 22:41:35,973 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 22:41:35,974 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 22:41:35,976 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 22:41:35,977 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 22:41:35,977 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 22:41:35,977 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 22:41:35,977 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 22:41:35,977 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 22:41:35,978 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 22:41:35,978 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 22:41:35,978 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 22:41:35,978 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 22:41:35,978 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 22:41:35,979 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 22:41:35,979 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 22:41:35,979 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 22:41:35,979 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 22:41:35,979 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 22:41:35,980 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 22:41:35,980 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 22:41:35,980 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 22:41:35,980 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 22:41:35,980 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 22:41:35,981 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 22:41:36,023 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 22:41:36,036 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 22:41:36,040 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 22:41:36,041 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 22:41:36,041 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 22:41:36,042 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label36_true-unreach-call.c [2018-07-23 22:41:36,377 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbc000175/dbd1d1b4c17844138a0d0e727489ad31/FLAGe46264e08 [2018-07-23 22:41:36,757 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 22:41:36,757 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label36_true-unreach-call.c [2018-07-23 22:41:36,785 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbc000175/dbd1d1b4c17844138a0d0e727489ad31/FLAGe46264e08 [2018-07-23 22:41:36,810 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbc000175/dbd1d1b4c17844138a0d0e727489ad31 [2018-07-23 22:41:36,824 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 22:41:36,827 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 22:41:36,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 22:41:36,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 22:41:36,840 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 22:41:36,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 10:41:36" (1/1) ... [2018-07-23 22:41:36,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b8b2370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:41:36, skipping insertion in model container [2018-07-23 22:41:36,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 10:41:36" (1/1) ... [2018-07-23 22:41:37,121 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 22:41:37,705 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 22:41:37,728 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 22:41:38,030 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 22:41:38,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:41:38 WrapperNode [2018-07-23 22:41:38,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 22:41:38,193 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 22:41:38,193 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 22:41:38,193 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 22:41:38,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:41:38" (1/1) ... [2018-07-23 22:41:38,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:41:38" (1/1) ... [2018-07-23 22:41:38,459 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 22:41:38,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 22:41:38,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 22:41:38,460 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 22:41:38,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:41:38" (1/1) ... [2018-07-23 22:41:38,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:41:38" (1/1) ... [2018-07-23 22:41:38,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:41:38" (1/1) ... [2018-07-23 22:41:38,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:41:38" (1/1) ... [2018-07-23 22:41:39,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:41:38" (1/1) ... [2018-07-23 22:41:39,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:41:38" (1/1) ... [2018-07-23 22:41:39,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:41:38" (1/1) ... [2018-07-23 22:41:39,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 22:41:39,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 22:41:39,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 22:41:39,108 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 22:41:39,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:41:38" (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 22:41:39,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 22:41:39,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 22:41:39,185 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-23 22:41:39,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-23 22:41:39,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 22:41:39,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 22:41:39,186 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 22:41:39,186 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 22:41:39,186 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-23 22:41:39,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-23 22:41:49,057 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 22:41:49,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 10:41:49 BoogieIcfgContainer [2018-07-23 22:41:49,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 22:41:49,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 22:41:49,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 22:41:49,063 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 22:41:49,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 10:41:36" (1/3) ... [2018-07-23 22:41:49,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b5a51c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 10:41:49, skipping insertion in model container [2018-07-23 22:41:49,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 10:41:38" (2/3) ... [2018-07-23 22:41:49,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b5a51c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 10:41:49, skipping insertion in model container [2018-07-23 22:41:49,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 10:41:49" (3/3) ... [2018-07-23 22:41:49,067 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label36_true-unreach-call.c [2018-07-23 22:41:49,077 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 22:41:49,088 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 22:41:49,149 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 22:41:49,150 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 22:41:49,150 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 22:41:49,150 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 22:41:49,150 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 22:41:49,150 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 22:41:49,151 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 22:41:49,151 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 22:41:49,151 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 22:41:49,189 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-07-23 22:41:49,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-07-23 22:41:49,202 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:41:49,207 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:41:49,208 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:41:49,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1425417852, now seen corresponding path program 1 times [2018-07-23 22:41:49,217 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:41:49,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:41:49,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:41:49,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:41:49,282 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:41:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:41:49,781 WARN L169 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-07-23 22:41:49,868 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 22:41:49,870 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:41:49,871 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 22:41:49,871 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:41:49,878 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 22:41:49,894 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 22:41:49,895 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 22:41:49,898 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-07-23 22:41:57,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:41:57,656 INFO L93 Difference]: Finished difference Result 1510 states and 2773 transitions. [2018-07-23 22:41:57,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 22:41:57,658 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 68 [2018-07-23 22:41:57,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:41:57,686 INFO L225 Difference]: With dead ends: 1510 [2018-07-23 22:41:57,686 INFO L226 Difference]: Without dead ends: 1066 [2018-07-23 22:41:57,696 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 22:41:57,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2018-07-23 22:41:57,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1064. [2018-07-23 22:41:57,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1064 states. [2018-07-23 22:41:57,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1590 transitions. [2018-07-23 22:41:57,843 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1590 transitions. Word has length 68 [2018-07-23 22:41:57,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:41:57,846 INFO L471 AbstractCegarLoop]: Abstraction has 1064 states and 1590 transitions. [2018-07-23 22:41:57,846 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 22:41:57,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1590 transitions. [2018-07-23 22:41:57,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-07-23 22:41:57,859 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:41:57,860 INFO L353 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, 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] [2018-07-23 22:41:57,861 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:41:57,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1914433689, now seen corresponding path program 1 times [2018-07-23 22:41:57,862 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:41:57,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:41:57,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:41:57,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:41:57,864 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:41:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:41:58,113 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 22:41:58,114 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 22:41:58,114 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 22:41:58,115 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:41:58,117 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 22:41:58,117 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 22:41:58,117 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 22:41:58,118 INFO L87 Difference]: Start difference. First operand 1064 states and 1590 transitions. Second operand 4 states. [2018-07-23 22:42:07,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 22:42:07,161 INFO L93 Difference]: Finished difference Result 3981 states and 6113 transitions. [2018-07-23 22:42:07,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 22:42:07,162 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 138 [2018-07-23 22:42:07,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 22:42:07,185 INFO L225 Difference]: With dead ends: 3981 [2018-07-23 22:42:07,185 INFO L226 Difference]: Without dead ends: 2923 [2018-07-23 22:42:07,196 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 22:42:07,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2018-07-23 22:42:07,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 2921. [2018-07-23 22:42:07,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2921 states. [2018-07-23 22:42:07,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 4008 transitions. [2018-07-23 22:42:07,320 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 4008 transitions. Word has length 138 [2018-07-23 22:42:07,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 22:42:07,321 INFO L471 AbstractCegarLoop]: Abstraction has 2921 states and 4008 transitions. [2018-07-23 22:42:07,321 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 22:42:07,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 4008 transitions. [2018-07-23 22:42:07,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2018-07-23 22:42:07,329 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 22:42:07,330 INFO L353 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, 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, 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 22:42:07,330 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 22:42:07,331 INFO L82 PathProgramCache]: Analyzing trace with hash 69219501, now seen corresponding path program 1 times [2018-07-23 22:42:07,331 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 22:42:07,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:42:07,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 22:42:07,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 22:42:07,332 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 22:42:07,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 22:42:08,175 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 123 proven. 77 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-07-23 22:42:08,176 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 22:42:08,176 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 22:42:08,178 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 249 with the following transitions: [2018-07-23 22:42:08,181 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [445], [447], [450], [458], [466], [474], [482], [490], [495], [499], [510], [514], [518], [522], [526], [530], [534], [538], [542], [546], [550], [554], [557], [558], [569], [573], [577], [581], [585], [596], [600], [604], [608], [612], [616], [619], [1563], [1567], [1571], [1577], [1581], [1583], [1662], [1663], [1664], [1666], [1667] [2018-07-23 22:42:08,258 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 22:42:08,258 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 22:43:49,726 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 22:45:45,870 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 22:45:45,872 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 22:45:45,895 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 22:45:49,402 INFO L232 lantSequenceWeakener]: Weakened 246 states. On average, predicates are now at 78.32% of their original sizes. [2018-07-23 22:45:49,403 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 22:45:51,325 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 22:45:51,326 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 22:45:51,326 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16 [2018-07-23 22:45:51,326 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 22:45:51,329 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-23 22:45:51,330 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-23 22:45:51,330 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-07-23 22:45:51,330 INFO L87 Difference]: Start difference. First operand 2921 states and 4008 transitions. Second operand 12 states. Received shutdown request... [2018-07-23 22:45:53,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 22:45:53,328 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 22:45:53,333 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 22:45:53,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 10:45:53 BoogieIcfgContainer [2018-07-23 22:45:53,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 22:45:53,335 INFO L168 Benchmark]: Toolchain (without parser) took 256509.27 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-07-23 22:45:53,336 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 22:45:53,337 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1363.79 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 22:45:53,338 INFO L168 Benchmark]: Boogie Procedure Inliner took 266.04 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-23 22:45:53,339 INFO L168 Benchmark]: Boogie Preprocessor took 647.59 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 856.7 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.7 MB. Max. memory is 7.1 GB. [2018-07-23 22:45:53,340 INFO L168 Benchmark]: RCFGBuilder took 9950.75 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 340.2 MB). Peak memory consumption was 340.2 MB. Max. memory is 7.1 GB. [2018-07-23 22:45:53,341 INFO L168 Benchmark]: TraceAbstraction took 244275.20 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 2.9 GB in the end (delta: -962.9 MB). Peak memory consumption was 814.5 MB. Max. memory is 7.1 GB. [2018-07-23 22:45:53,347 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1363.79 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 266.04 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 647.59 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 856.7 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9950.75 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 340.2 MB). Peak memory consumption was 340.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 244275.20 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 2.9 GB in the end (delta: -962.9 MB). Peak memory consumption was 814.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 190]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 190). Cancelled while BasicCegarLoop was constructing difference of abstraction (2921states) and interpolant automaton (currently 7 states, 12 states before enhancement), while ReachableStatesComputation was computing reachable states (24 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 244.1s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 18.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 808 SDtfs, 1375 SDslu, 419 SDs, 0 SdLazy, 3991 SolverSat, 1109 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 262 GetRequests, 214 SyntacticMatches, 30 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2921occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 217.7s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9952253124449923 AbsIntWeakeningRatio, 0.10526315789473684 AbsIntAvgWeakeningVarsNumRemoved, 523.3076923076923 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 454 NumberOfCodeBlocks, 454 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 451 ConstructedInterpolants, 0 QuantifiedInterpolants, 335446 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 190/267 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_label36_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_22-45-53-363.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label36_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_22-45-53-363.csv Completed graceful shutdown