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/Problem14_label41_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 19:38:12,029 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 19:38:12,031 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 19:38:12,047 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 19:38:12,047 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 19:38:12,048 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 19:38:12,050 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 19:38:12,053 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 19:38:12,054 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 19:38:12,055 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 19:38:12,056 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 19:38:12,056 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 19:38:12,057 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 19:38:12,058 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 19:38:12,061 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 19:38:12,062 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 19:38:12,063 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 19:38:12,067 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 19:38:12,069 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 19:38:12,074 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 19:38:12,077 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 19:38:12,078 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 19:38:12,082 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 19:38:12,082 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 19:38:12,082 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 19:38:12,083 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 19:38:12,084 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 19:38:12,085 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 19:38:12,088 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 19:38:12,091 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 19:38:12,092 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 19:38:12,092 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 19:38:12,093 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 19:38:12,093 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 19:38:12,094 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 19:38:12,096 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 19:38:12,097 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 19:38:12,126 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 19:38:12,126 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 19:38:12,128 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 19:38:12,128 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 19:38:12,128 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 19:38:12,128 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 19:38:12,128 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 19:38:12,129 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 19:38:12,129 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 19:38:12,129 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 19:38:12,130 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 19:38:12,130 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 19:38:12,131 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 19:38:12,131 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 19:38:12,131 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 19:38:12,131 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 19:38:12,131 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 19:38:12,132 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 19:38:12,132 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 19:38:12,132 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 19:38:12,132 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 19:38:12,134 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 19:38:12,134 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 19:38:12,134 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 19:38:12,135 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 19:38:12,135 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 19:38:12,135 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 19:38:12,135 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 19:38:12,135 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 19:38:12,135 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 19:38:12,136 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 19:38:12,136 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 19:38:12,136 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 19:38:12,188 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 19:38:12,205 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 19:38:12,212 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 19:38:12,213 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 19:38:12,214 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 19:38:12,215 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label41_false-unreach-call_false-termination.c [2018-07-23 19:38:12,577 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e6a12c9c/c74782b333d24006986eda854eb2b3ab/FLAGf76385a5d [2018-07-23 19:38:12,905 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 19:38:12,906 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label41_false-unreach-call_false-termination.c [2018-07-23 19:38:12,932 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e6a12c9c/c74782b333d24006986eda854eb2b3ab/FLAGf76385a5d [2018-07-23 19:38:12,958 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e6a12c9c/c74782b333d24006986eda854eb2b3ab [2018-07-23 19:38:12,972 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 19:38:12,975 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 19:38:12,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 19:38:12,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 19:38:12,982 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 19:38:12,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:38:12" (1/1) ... [2018-07-23 19:38:12,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e118919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:38:12, skipping insertion in model container [2018-07-23 19:38:12,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:38:12" (1/1) ... [2018-07-23 19:38:13,195 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 19:38:13,558 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:38:13,578 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 19:38:13,735 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:38:13,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:38:13 WrapperNode [2018-07-23 19:38:13,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 19:38:13,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 19:38:13,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 19:38:13,797 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 19:38:13,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:38:13" (1/1) ... [2018-07-23 19:38:13,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:38:13" (1/1) ... [2018-07-23 19:38:13,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 19:38:13,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 19:38:13,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 19:38:13,931 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 19:38:13,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:38:13" (1/1) ... [2018-07-23 19:38:13,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:38:13" (1/1) ... [2018-07-23 19:38:13,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:38:13" (1/1) ... [2018-07-23 19:38:13,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:38:13" (1/1) ... [2018-07-23 19:38:14,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:38:13" (1/1) ... [2018-07-23 19:38:14,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:38:13" (1/1) ... [2018-07-23 19:38:14,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:38:13" (1/1) ... [2018-07-23 19:38:14,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 19:38:14,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 19:38:14,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 19:38:14,287 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 19:38:14,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:38:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 19:38:14,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 19:38:14,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 19:38:14,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 19:38:14,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 19:38:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 19:38:14,370 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 19:38:14,371 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_output [2018-07-23 19:38:14,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_output [2018-07-23 19:38:18,391 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 19:38:18,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:38:18 BoogieIcfgContainer [2018-07-23 19:38:18,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 19:38:18,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 19:38:18,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 19:38:18,397 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 19:38:18,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 07:38:12" (1/3) ... [2018-07-23 19:38:18,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab7ac3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:38:18, skipping insertion in model container [2018-07-23 19:38:18,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:38:13" (2/3) ... [2018-07-23 19:38:18,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab7ac3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:38:18, skipping insertion in model container [2018-07-23 19:38:18,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:38:18" (3/3) ... [2018-07-23 19:38:18,401 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label41_false-unreach-call_false-termination.c [2018-07-23 19:38:18,411 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 19:38:18,422 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 19:38:18,475 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 19:38:18,476 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 19:38:18,476 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 19:38:18,476 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 19:38:18,477 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 19:38:18,477 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 19:38:18,477 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 19:38:18,478 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 19:38:18,478 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 19:38:18,514 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-07-23 19:38:18,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-23 19:38:18,521 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:38:18,523 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:38:18,523 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:38:18,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1218928316, now seen corresponding path program 1 times [2018-07-23 19:38:18,532 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:38:18,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:38:18,585 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:38:18,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:38:18,586 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:38:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:38:18,858 WARN L169 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 19:38:18,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:38:18,963 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:38:18,963 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 19:38:18,964 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:38:18,971 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 19:38:18,987 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 19:38:18,988 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 19:38:18,991 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-07-23 19:38:21,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:38:21,238 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-07-23 19:38:21,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 19:38:21,240 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-07-23 19:38:21,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:38:21,263 INFO L225 Difference]: With dead ends: 691 [2018-07-23 19:38:21,263 INFO L226 Difference]: Without dead ends: 434 [2018-07-23 19:38:21,272 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 19:38:21,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-07-23 19:38:21,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-07-23 19:38:21,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-07-23 19:38:21,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 767 transitions. [2018-07-23 19:38:21,364 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 767 transitions. Word has length 14 [2018-07-23 19:38:21,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:38:21,364 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 767 transitions. [2018-07-23 19:38:21,365 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 19:38:21,365 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 767 transitions. [2018-07-23 19:38:21,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-07-23 19:38:21,370 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:38:21,370 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:38:21,370 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:38:21,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1746473339, now seen corresponding path program 1 times [2018-07-23 19:38:21,371 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:38:21,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:38:21,373 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:38:21,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:38:21,373 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:38:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:38:21,645 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:38:21,645 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:38:21,646 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 19:38:21,646 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:38:21,648 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 19:38:21,648 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 19:38:21,649 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 19:38:21,649 INFO L87 Difference]: Start difference. First operand 434 states and 767 transitions. Second operand 5 states. [2018-07-23 19:38:25,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:38:25,510 INFO L93 Difference]: Finished difference Result 1416 states and 2580 transitions. [2018-07-23 19:38:25,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 19:38:25,516 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2018-07-23 19:38:25,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:38:25,525 INFO L225 Difference]: With dead ends: 1416 [2018-07-23 19:38:25,525 INFO L226 Difference]: Without dead ends: 988 [2018-07-23 19:38:25,531 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-23 19:38:25,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2018-07-23 19:38:25,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 973. [2018-07-23 19:38:25,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 973 states. [2018-07-23 19:38:25,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1540 transitions. [2018-07-23 19:38:25,598 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1540 transitions. Word has length 91 [2018-07-23 19:38:25,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:38:25,599 INFO L471 AbstractCegarLoop]: Abstraction has 973 states and 1540 transitions. [2018-07-23 19:38:25,599 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 19:38:25,600 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1540 transitions. [2018-07-23 19:38:25,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-07-23 19:38:25,605 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:38:25,605 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:38:25,605 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:38:25,606 INFO L82 PathProgramCache]: Analyzing trace with hash -2042940165, now seen corresponding path program 1 times [2018-07-23 19:38:25,606 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:38:25,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:38:25,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:38:25,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:38:25,609 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:38:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:38:26,051 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:38:26,051 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:38:26,051 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 19:38:26,051 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:38:26,052 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 19:38:26,052 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 19:38:26,053 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 19:38:26,053 INFO L87 Difference]: Start difference. First operand 973 states and 1540 transitions. Second operand 6 states. [2018-07-23 19:38:29,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:38:29,905 INFO L93 Difference]: Finished difference Result 2353 states and 3939 transitions. [2018-07-23 19:38:29,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:38:29,907 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 155 [2018-07-23 19:38:29,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:38:29,920 INFO L225 Difference]: With dead ends: 2353 [2018-07-23 19:38:29,920 INFO L226 Difference]: Without dead ends: 1386 [2018-07-23 19:38:29,925 INFO L573 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 [2018-07-23 19:38:29,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2018-07-23 19:38:29,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1352. [2018-07-23 19:38:29,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2018-07-23 19:38:30,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 2126 transitions. [2018-07-23 19:38:30,009 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 2126 transitions. Word has length 155 [2018-07-23 19:38:30,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:38:30,010 INFO L471 AbstractCegarLoop]: Abstraction has 1352 states and 2126 transitions. [2018-07-23 19:38:30,010 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 19:38:30,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 2126 transitions. [2018-07-23 19:38:30,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-07-23 19:38:30,021 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:38:30,022 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:38:30,022 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:38:30,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1350185011, now seen corresponding path program 1 times [2018-07-23 19:38:30,024 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:38:30,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:38:30,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:38:30,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:38:30,026 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:38:30,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:38:30,302 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 89 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:38:30,303 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:38:30,303 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:38:30,304 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 176 with the following transitions: [2018-07-23 19:38:30,306 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [37], [39], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [519], [523], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [567], [571], [574], [972], [973], [974], [975], [977], [978] [2018-07-23 19:38:30,370 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:38:30,371 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:38:34,285 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:38:34,287 INFO L272 AbstractInterpreter]: Visited 89 different actions 89 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-23 19:38:34,319 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:38:36,977 INFO L232 lantSequenceWeakener]: Weakened 167 states. On average, predicates are now at 77.28% of their original sizes. [2018-07-23 19:38:36,978 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:38:37,347 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:38:37,348 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:38:37,348 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-07-23 19:38:37,348 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:38:37,349 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 19:38:37,349 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 19:38:37,350 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 19:38:37,350 INFO L87 Difference]: Start difference. First operand 1352 states and 2126 transitions. Second operand 7 states. [2018-07-23 19:38:47,793 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:39:10,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:39:10,337 INFO L93 Difference]: Finished difference Result 2883 states and 4473 transitions. [2018-07-23 19:39:10,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:39:10,338 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 175 [2018-07-23 19:39:10,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:39:10,346 INFO L225 Difference]: With dead ends: 2883 [2018-07-23 19:39:10,346 INFO L226 Difference]: Without dead ends: 1537 [2018-07-23 19:39:10,352 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 175 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-07-23 19:39:10,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1537 states. [2018-07-23 19:39:10,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1537 to 1535. [2018-07-23 19:39:10,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1535 states. [2018-07-23 19:39:10,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 2316 transitions. [2018-07-23 19:39:10,395 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 2316 transitions. Word has length 175 [2018-07-23 19:39:10,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:39:10,396 INFO L471 AbstractCegarLoop]: Abstraction has 1535 states and 2316 transitions. [2018-07-23 19:39:10,396 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 19:39:10,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 2316 transitions. [2018-07-23 19:39:10,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2018-07-23 19:39:10,401 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:39:10,401 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:39:10,401 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:39:10,402 INFO L82 PathProgramCache]: Analyzing trace with hash -61989780, now seen corresponding path program 1 times [2018-07-23 19:39:10,402 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:39:10,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:39:10,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:39:10,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:39:10,403 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:39:10,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:39:10,939 WARN L169 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-23 19:39:11,153 WARN L169 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-07-23 19:39:11,398 WARN L169 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-23 19:39:11,867 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 108 proven. 146 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-23 19:39:11,867 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:39:11,867 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:39:11,867 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 261 with the following transitions: [2018-07-23 19:39:11,868 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [37], [39], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [519], [523], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [567], [571], [574], [575], [578], [972], [973], [974], [975], [977], [978] [2018-07-23 19:39:11,874 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:39:11,874 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:39:19,735 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:39:19,735 INFO L272 AbstractInterpreter]: Visited 94 different actions 181 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 19:39:19,750 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:39:25,488 INFO L232 lantSequenceWeakener]: Weakened 258 states. On average, predicates are now at 77.36% of their original sizes. [2018-07-23 19:39:25,488 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:39:26,274 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:39:26,275 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:39:26,275 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2018-07-23 19:39:26,275 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:39:26,275 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 19:39:26,276 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 19:39:26,276 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-07-23 19:39:26,276 INFO L87 Difference]: Start difference. First operand 1535 states and 2316 transitions. Second operand 11 states. [2018-07-23 19:40:05,073 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:40:24,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:40:24,667 INFO L93 Difference]: Finished difference Result 3253 states and 4895 transitions. [2018-07-23 19:40:24,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 19:40:24,668 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 260 [2018-07-23 19:40:24,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:40:24,677 INFO L225 Difference]: With dead ends: 3253 [2018-07-23 19:40:24,678 INFO L226 Difference]: Without dead ends: 1907 [2018-07-23 19:40:24,684 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 266 GetRequests, 248 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-07-23 19:40:24,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2018-07-23 19:40:24,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 1904. [2018-07-23 19:40:24,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1904 states. [2018-07-23 19:40:24,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1904 states to 1904 states and 2703 transitions. [2018-07-23 19:40:24,741 INFO L78 Accepts]: Start accepts. Automaton has 1904 states and 2703 transitions. Word has length 260 [2018-07-23 19:40:24,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:40:24,742 INFO L471 AbstractCegarLoop]: Abstraction has 1904 states and 2703 transitions. [2018-07-23 19:40:24,742 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 19:40:24,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1904 states and 2703 transitions. [2018-07-23 19:40:24,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-07-23 19:40:24,748 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:40:24,748 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-23 19:40:24,749 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:40:24,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1425803392, now seen corresponding path program 1 times [2018-07-23 19:40:24,749 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:40:24,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:40:24,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:40:24,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:40:24,751 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:40:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:40:25,199 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 80 proven. 125 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-07-23 19:40:25,199 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:40:25,200 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:40:25,200 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 287 with the following transitions: [2018-07-23 19:40:25,200 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [37], [39], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [519], [523], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [567], [571], [574], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [682], [972], [973], [974], [975], [977], [978] [2018-07-23 19:40:25,206 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:40:25,206 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:40:44,383 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:40:44,383 INFO L272 AbstractInterpreter]: Visited 120 different actions 234 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-07-23 19:40:44,409 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:40:55,783 INFO L232 lantSequenceWeakener]: Weakened 284 states. On average, predicates are now at 77.36% of their original sizes. [2018-07-23 19:40:55,783 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:40:56,349 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:40:56,349 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:40:56,349 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 17 [2018-07-23 19:40:56,350 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:40:56,350 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 19:40:56,351 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 19:40:56,351 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-07-23 19:40:56,351 INFO L87 Difference]: Start difference. First operand 1904 states and 2703 transitions. Second operand 11 states. [2018-07-23 19:41:32,973 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 19:42:00,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:42:00,859 INFO L93 Difference]: Finished difference Result 3438 states and 5054 transitions. [2018-07-23 19:42:00,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-23 19:42:00,859 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 286 [2018-07-23 19:42:00,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:42:00,868 INFO L225 Difference]: With dead ends: 3438 [2018-07-23 19:42:00,868 INFO L226 Difference]: Without dead ends: 2092 [2018-07-23 19:42:00,873 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 293 GetRequests, 274 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-07-23 19:42:00,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2092 states. [2018-07-23 19:42:00,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2092 to 2089. [2018-07-23 19:42:00,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2018-07-23 19:42:00,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2902 transitions. [2018-07-23 19:42:00,936 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2902 transitions. Word has length 286 [2018-07-23 19:42:00,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:42:00,936 INFO L471 AbstractCegarLoop]: Abstraction has 2089 states and 2902 transitions. [2018-07-23 19:42:00,936 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 19:42:00,937 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2902 transitions. [2018-07-23 19:42:00,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2018-07-23 19:42:00,942 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:42:00,943 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:42:00,943 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:42:00,943 INFO L82 PathProgramCache]: Analyzing trace with hash -932956396, now seen corresponding path program 1 times [2018-07-23 19:42:00,943 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:42:00,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:42:00,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:42:00,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:42:00,945 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:42:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:42:01,312 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 176 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-07-23 19:42:01,312 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:42:01,312 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:42:01,313 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 313 with the following transitions: [2018-07-23 19:42:01,313 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [33], [37], [39], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [519], [523], [527], [531], [535], [539], [543], [546], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [679], [682], [972], [973], [974], [975], [977], [978] [2018-07-23 19:42:01,318 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:42:01,318 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-07-23 19:42:07,113 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-23 19:42:07,114 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-23 19:42:07,115 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-23 19:42:07,115 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:42:07,116 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 19:42:07,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:42:07,124 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 19:42:07,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:42:07,257 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 19:42:07,311 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-23 19:42:07,512 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 19:42:07,513 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 19:42:07,517 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 19:42:07,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 07:42:07 BoogieIcfgContainer [2018-07-23 19:42:07,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 19:42:07,519 INFO L168 Benchmark]: Toolchain (without parser) took 234545.76 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 784.0 MB. Max. memory is 7.1 GB. [2018-07-23 19:42:07,520 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 19:42:07,520 INFO L168 Benchmark]: CACSL2BoogieTranslator took 820.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-23 19:42:07,521 INFO L168 Benchmark]: Boogie Procedure Inliner took 133.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 19:42:07,522 INFO L168 Benchmark]: Boogie Preprocessor took 354.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 766.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -866.6 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. [2018-07-23 19:42:07,523 INFO L168 Benchmark]: RCFGBuilder took 4105.76 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 145.1 MB). Peak memory consumption was 145.1 MB. Max. memory is 7.1 GB. [2018-07-23 19:42:07,524 INFO L168 Benchmark]: TraceAbstraction took 229124.99 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 686.2 MB. Max. memory is 7.1 GB. [2018-07-23 19:42:07,537 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 820.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 133.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 354.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 766.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -866.6 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4105.76 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 145.1 MB). Peak memory consumption was 145.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 229124.99 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 686.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 25]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 25). Cancelled while BasicCegarLoop was analyzing trace of length 313 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 7 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 229.0s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 165.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 998 SDtfs, 4299 SDslu, 1131 SDs, 0 SdLazy, 6359 SolverSat, 1108 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 114.2s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 758 GetRequests, 698 SyntacticMatches, 7 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2089occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 36.9s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 0.9945980178434458 AbsIntWeakeningRatio, 0.12534818941504178 AbsIntAvgWeakeningVarsNumRemoved, 236.82729805013926 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 57 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 981 NumberOfCodeBlocks, 981 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 975 ConstructedInterpolants, 0 QuantifiedInterpolants, 1782399 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 350/623 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/Problem14_label41_false-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_19-42-07-555.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label41_false-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_19-42-07-555.csv Completed graceful shutdown