java -Xss4m -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label09_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 04:07:51,386 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 04:07:51,388 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 04:07:51,401 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 04:07:51,401 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 04:07:51,403 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 04:07:51,404 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 04:07:51,408 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 04:07:51,409 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 04:07:51,411 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 04:07:51,412 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 04:07:51,412 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 04:07:51,413 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 04:07:51,413 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 04:07:51,417 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 04:07:51,418 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 04:07:51,418 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 04:07:51,427 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 04:07:51,429 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 04:07:51,430 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 04:07:51,431 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 04:07:51,435 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 04:07:51,437 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 04:07:51,437 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 04:07:51,437 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 04:07:51,440 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 04:07:51,441 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 04:07:51,442 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 04:07:51,443 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 04:07:51,443 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 04:07:51,447 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 04:07:51,447 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 04:07:51,448 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 04:07:51,448 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 04:07:51,449 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 04:07:51,449 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 04:07:51,450 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-21 04:07:51,471 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 04:07:51,471 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 04:07:51,472 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 04:07:51,472 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 04:07:51,472 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 04:07:51,472 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 04:07:51,473 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 04:07:51,473 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 04:07:51,473 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 04:07:51,473 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 04:07:51,473 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 04:07:51,474 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 04:07:51,478 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 04:07:51,478 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 04:07:51,478 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 04:07:51,479 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 04:07:51,479 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 04:07:51,479 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 04:07:51,479 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 04:07:51,479 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 04:07:51,480 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 04:07:51,480 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 04:07:51,480 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 04:07:51,480 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 04:07:51,480 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 04:07:51,480 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 04:07:51,481 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 04:07:51,481 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 04:07:51,481 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 04:07:51,481 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 04:07:51,482 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 04:07:51,482 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 04:07:51,482 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 04:07:51,482 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 04:07:51,482 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 04:07:51,526 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 04:07:51,543 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 04:07:51,549 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 04:07:51,552 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 04:07:51,552 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 04:07:51,553 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label09_false-unreach-call.c [2018-07-21 04:07:51,979 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/084625961/9444c752740c4f0bb916f14cdda80af9/FLAG4a0dc4fae [2018-07-21 04:07:52,407 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 04:07:52,407 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label09_false-unreach-call.c [2018-07-21 04:07:52,429 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/084625961/9444c752740c4f0bb916f14cdda80af9/FLAG4a0dc4fae [2018-07-21 04:07:52,656 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/084625961/9444c752740c4f0bb916f14cdda80af9 [2018-07-21 04:07:52,665 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 04:07:52,670 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 04:07:52,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 04:07:52,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 04:07:52,679 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 04:07:52,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:07:52" (1/1) ... [2018-07-21 04:07:52,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48b53f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:52, skipping insertion in model container [2018-07-21 04:07:52,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:07:52" (1/1) ... [2018-07-21 04:07:52,936 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 04:07:53,544 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 04:07:53,560 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 04:07:53,924 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 04:07:54,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:54 WrapperNode [2018-07-21 04:07:54,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 04:07:54,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 04:07:54,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 04:07:54,054 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 04:07:54,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:54" (1/1) ... [2018-07-21 04:07:54,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:54" (1/1) ... [2018-07-21 04:07:54,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 04:07:54,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 04:07:54,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 04:07:54,282 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 04:07:54,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:54" (1/1) ... [2018-07-21 04:07:54,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:54" (1/1) ... [2018-07-21 04:07:54,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:54" (1/1) ... [2018-07-21 04:07:54,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:54" (1/1) ... [2018-07-21 04:07:54,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:54" (1/1) ... [2018-07-21 04:07:54,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:54" (1/1) ... [2018-07-21 04:07:55,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:54" (1/1) ... [2018-07-21 04:07:55,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 04:07:55,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 04:07:55,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 04:07:55,049 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 04:07:55,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:54" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 04:07:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 04:07:55,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 04:07:55,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 04:07:55,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 04:07:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-21 04:07:55,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-21 04:07:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 04:07:55,121 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 04:07:55,121 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-21 04:07:55,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-21 04:08:02,144 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 04:08:02,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:08:02 BoogieIcfgContainer [2018-07-21 04:08:02,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 04:08:02,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 04:08:02,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 04:08:02,150 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 04:08:02,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:07:52" (1/3) ... [2018-07-21 04:08:02,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62834e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:08:02, skipping insertion in model container [2018-07-21 04:08:02,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:07:54" (2/3) ... [2018-07-21 04:08:02,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62834e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:08:02, skipping insertion in model container [2018-07-21 04:08:02,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:08:02" (3/3) ... [2018-07-21 04:08:02,154 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label09_false-unreach-call.c [2018-07-21 04:08:02,161 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 04:08:02,169 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 04:08:02,214 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 04:08:02,215 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 04:08:02,215 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 04:08:02,215 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 04:08:02,215 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 04:08:02,215 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 04:08:02,215 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 04:08:02,215 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 04:08:02,215 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 04:08:02,243 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-07-21 04:08:02,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-21 04:08:02,250 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:08:02,251 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 04:08:02,251 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 04:08:02,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1753173060, now seen corresponding path program 1 times [2018-07-21 04:08:02,260 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:08:02,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:08:02,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:08:02,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:08:02,315 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:08:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:08:02,689 WARN L169 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-07-21 04:08:02,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 04:08:02,702 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 04:08:02,702 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 04:08:02,703 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:08:02,706 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 04:08:02,722 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 04:08:02,723 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 04:08:02,725 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-07-21 04:08:10,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 04:08:10,462 INFO L93 Difference]: Finished difference Result 1550 states and 2835 transitions. [2018-07-21 04:08:10,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 04:08:10,464 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-07-21 04:08:10,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 04:08:10,492 INFO L225 Difference]: With dead ends: 1550 [2018-07-21 04:08:10,492 INFO L226 Difference]: Without dead ends: 1106 [2018-07-21 04:08:10,504 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 04:08:10,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2018-07-21 04:08:10,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 762. [2018-07-21 04:08:10,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-07-21 04:08:10,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1263 transitions. [2018-07-21 04:08:10,614 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1263 transitions. Word has length 14 [2018-07-21 04:08:10,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 04:08:10,614 INFO L471 AbstractCegarLoop]: Abstraction has 762 states and 1263 transitions. [2018-07-21 04:08:10,614 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 04:08:10,614 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1263 transitions. [2018-07-21 04:08:10,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-07-21 04:08:10,619 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:08:10,621 INFO L358 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] [2018-07-21 04:08:10,621 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 04:08:10,622 INFO L82 PathProgramCache]: Analyzing trace with hash -402994766, now seen corresponding path program 1 times [2018-07-21 04:08:10,622 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:08:10,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:08:10,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:08:10,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:08:10,624 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:08:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:08:10,866 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 04:08:10,867 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 04:08:10,867 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-21 04:08:10,867 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:08:10,869 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 04:08:10,870 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 04:08:10,870 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 04:08:10,870 INFO L87 Difference]: Start difference. First operand 762 states and 1263 transitions. Second operand 5 states. [2018-07-21 04:08:19,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 04:08:19,712 INFO L93 Difference]: Finished difference Result 2245 states and 3758 transitions. [2018-07-21 04:08:19,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 04:08:19,714 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 87 [2018-07-21 04:08:19,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 04:08:19,729 INFO L225 Difference]: With dead ends: 2245 [2018-07-21 04:08:19,729 INFO L226 Difference]: Without dead ends: 1489 [2018-07-21 04:08:19,733 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-21 04:08:19,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2018-07-21 04:08:19,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1457. [2018-07-21 04:08:19,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1457 states. [2018-07-21 04:08:19,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 2152 transitions. [2018-07-21 04:08:19,821 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 2152 transitions. Word has length 87 [2018-07-21 04:08:19,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 04:08:19,822 INFO L471 AbstractCegarLoop]: Abstraction has 1457 states and 2152 transitions. [2018-07-21 04:08:19,822 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 04:08:19,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 2152 transitions. [2018-07-21 04:08:19,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-07-21 04:08:19,826 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:08:19,827 INFO L358 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] [2018-07-21 04:08:19,827 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 04:08:19,827 INFO L82 PathProgramCache]: Analyzing trace with hash -53836872, now seen corresponding path program 1 times [2018-07-21 04:08:19,827 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:08:19,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:08:19,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:08:19,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:08:19,832 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:08:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:08:20,023 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 04:08:20,024 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 04:08:20,024 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 04:08:20,024 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:08:20,024 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 04:08:20,025 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 04:08:20,027 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 04:08:20,027 INFO L87 Difference]: Start difference. First operand 1457 states and 2152 transitions. Second operand 3 states. [2018-07-21 04:08:22,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 04:08:22,627 INFO L93 Difference]: Finished difference Result 4154 states and 6283 transitions. [2018-07-21 04:08:22,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 04:08:22,628 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2018-07-21 04:08:22,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 04:08:22,648 INFO L225 Difference]: With dead ends: 4154 [2018-07-21 04:08:22,649 INFO L226 Difference]: Without dead ends: 2703 [2018-07-21 04:08:22,659 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 04:08:22,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2703 states. [2018-07-21 04:08:22,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2703 to 2701. [2018-07-21 04:08:22,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2701 states. [2018-07-21 04:08:22,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 3591 transitions. [2018-07-21 04:08:22,776 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 3591 transitions. Word has length 92 [2018-07-21 04:08:22,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 04:08:22,778 INFO L471 AbstractCegarLoop]: Abstraction has 2701 states and 3591 transitions. [2018-07-21 04:08:22,778 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 04:08:22,778 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 3591 transitions. [2018-07-21 04:08:22,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2018-07-21 04:08:22,785 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:08:22,786 INFO L358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 04:08:22,786 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 04:08:22,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1587898003, now seen corresponding path program 1 times [2018-07-21 04:08:22,786 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:08:22,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:08:22,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:08:22,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:08:22,788 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:08:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:08:23,388 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-21 04:08:23,388 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 04:08:23,389 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 04:08:23,390 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 216 with the following transitions: [2018-07-21 04:08:23,394 INFO L201 CegarAbsIntRunner]: [0], [1], [77], [81], [87], [91], [93], [98], [105], [109], [111], [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], [522], [530], [538], [546], [554], [562], [570], [578], [586], [591], [595], [606], [610], [614], [618], [622], [626], [630], [634], [638], [642], [646], [650], [654], [665], [669], [673], [677], [681], [692], [696], [700], [704], [708], [712], [716], [720], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [822], [833], [837], [848], [859], [863], [874], [878], [889], [893], [897], [901], [905], [909], [920], [924], [928], [932], [936], [940], [944], [948], [959], [963], [967], [971], [975], [979], [983], [987], [991], [995], [999], [1003], [1007], [1011], [1015], [1026], [1030], [1034], [1038], [1042], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1215], [1226], [1230], [1233], [1659], [1660], [1661], [1662], [1664], [1665] [2018-07-21 04:08:23,496 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 04:08:23,496 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 04:08:44,479 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 04:08:44,481 INFO L272 AbstractInterpreter]: Visited 205 different actions 205 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-07-21 04:08:44,494 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 04:08:52,911 INFO L232 lantSequenceWeakener]: Weakened 210 states. On average, predicates are now at 77.25% of their original sizes. [2018-07-21 04:08:52,911 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 04:08:53,723 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 04:08:53,724 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 04:08:53,724 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2018-07-21 04:08:53,725 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:08:53,725 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-21 04:08:53,725 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-21 04:08:53,726 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-07-21 04:08:53,726 INFO L87 Difference]: Start difference. First operand 2701 states and 3591 transitions. Second operand 9 states. [2018-07-21 04:09:06,697 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 04:11:11,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 04:11:11,517 INFO L93 Difference]: Finished difference Result 5706 states and 7511 transitions. [2018-07-21 04:11:11,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-21 04:11:11,517 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 215 [2018-07-21 04:11:11,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 04:11:11,533 INFO L225 Difference]: With dead ends: 5706 [2018-07-21 04:11:11,534 INFO L226 Difference]: Without dead ends: 3011 [2018-07-21 04:11:11,543 INFO L578 BasicCegarLoop]: 2 DeclaredPredicates, 217 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-07-21 04:11:11,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3011 states. [2018-07-21 04:11:11,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3011 to 3009. [2018-07-21 04:11:11,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3009 states. [2018-07-21 04:11:11,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3009 states to 3009 states and 3908 transitions. [2018-07-21 04:11:11,667 INFO L78 Accepts]: Start accepts. Automaton has 3009 states and 3908 transitions. Word has length 215 [2018-07-21 04:11:11,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 04:11:11,672 INFO L471 AbstractCegarLoop]: Abstraction has 3009 states and 3908 transitions. [2018-07-21 04:11:11,672 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-21 04:11:11,672 INFO L276 IsEmpty]: Start isEmpty. Operand 3009 states and 3908 transitions. [2018-07-21 04:11:11,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2018-07-21 04:11:11,682 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:11:11,682 INFO L358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 04:11:11,683 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 04:11:11,683 INFO L82 PathProgramCache]: Analyzing trace with hash 541451858, now seen corresponding path program 1 times [2018-07-21 04:11:11,683 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:11:11,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:11:11,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:11:11,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:11:11,685 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:11:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:11:11,992 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 04:11:11,992 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 04:11:11,992 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 04:11:11,993 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:11:11,993 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 04:11:11,994 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 04:11:11,994 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 04:11:11,994 INFO L87 Difference]: Start difference. First operand 3009 states and 3908 transitions. Second operand 3 states. [2018-07-21 04:11:14,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 04:11:14,487 INFO L93 Difference]: Finished difference Result 6960 states and 9560 transitions. [2018-07-21 04:11:14,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 04:11:14,488 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 301 [2018-07-21 04:11:14,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 04:11:14,515 INFO L225 Difference]: With dead ends: 6960 [2018-07-21 04:11:14,515 INFO L226 Difference]: Without dead ends: 4265 [2018-07-21 04:11:14,533 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 04:11:14,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4265 states. [2018-07-21 04:11:14,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4265 to 4262. [2018-07-21 04:11:14,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4262 states. [2018-07-21 04:11:14,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4262 states to 4262 states and 5398 transitions. [2018-07-21 04:11:14,699 INFO L78 Accepts]: Start accepts. Automaton has 4262 states and 5398 transitions. Word has length 301 [2018-07-21 04:11:14,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 04:11:14,701 INFO L471 AbstractCegarLoop]: Abstraction has 4262 states and 5398 transitions. [2018-07-21 04:11:14,701 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 04:11:14,701 INFO L276 IsEmpty]: Start isEmpty. Operand 4262 states and 5398 transitions. [2018-07-21 04:11:14,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2018-07-21 04:11:14,706 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 04:11:14,707 INFO L358 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 04:11:14,707 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 04:11:14,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1857429802, now seen corresponding path program 1 times [2018-07-21 04:11:14,707 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 04:11:14,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:11:14,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 04:11:14,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 04:11:14,709 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 04:11:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 04:11:15,062 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-07-21 04:11:15,062 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 04:11:15,062 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 04:11:15,062 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 04:11:15,063 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 04:11:15,063 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 04:11:15,063 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 04:11:15,063 INFO L87 Difference]: Start difference. First operand 4262 states and 5398 transitions. Second operand 4 states. Received shutdown request... [2018-07-21 04:11:17,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 04:11:17,900 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 04:11:17,905 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 04:11:17,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 04:11:17 BoogieIcfgContainer [2018-07-21 04:11:17,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 04:11:17,907 INFO L168 Benchmark]: Toolchain (without parser) took 205241.16 ms. Allocated memory was 303.0 MB in the beginning and 2.7 GB in the end (delta: 2.4 GB). Free memory was 242.4 MB in the beginning and 243.7 MB in the end (delta: -1.3 MB). Peak memory consumption was 2.4 GB. Max. memory is 5.3 GB. [2018-07-21 04:11:17,908 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 303.0 MB. Free memory is still 267.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 04:11:17,908 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1380.95 ms. Allocated memory was 303.0 MB in the beginning and 328.2 MB in the end (delta: 25.2 MB). Free memory was 242.4 MB in the beginning and 231.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 70.8 MB. Max. memory is 5.3 GB. [2018-07-21 04:11:17,909 INFO L168 Benchmark]: Boogie Procedure Inliner took 227.73 ms. Allocated memory is still 328.2 MB. Free memory was 231.9 MB in the beginning and 193.3 MB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 5.3 GB. [2018-07-21 04:11:17,909 INFO L168 Benchmark]: Boogie Preprocessor took 766.99 ms. Allocated memory was 328.2 MB in the beginning and 572.0 MB in the end (delta: 243.8 MB). Free memory was 193.3 MB in the beginning and 501.2 MB in the end (delta: -307.9 MB). Peak memory consumption was 55.9 MB. Max. memory is 5.3 GB. [2018-07-21 04:11:17,910 INFO L168 Benchmark]: RCFGBuilder took 7096.18 ms. Allocated memory was 572.0 MB in the beginning and 578.3 MB in the end (delta: 6.3 MB). Free memory was 501.2 MB in the beginning and 378.8 MB in the end (delta: 122.5 MB). Peak memory consumption was 198.6 MB. Max. memory is 5.3 GB. [2018-07-21 04:11:17,911 INFO L168 Benchmark]: TraceAbstraction took 195759.69 ms. Allocated memory was 578.3 MB in the beginning and 2.7 GB in the end (delta: 2.1 GB). Free memory was 378.8 MB in the beginning and 243.7 MB in the end (delta: 135.1 MB). Peak memory consumption was 2.2 GB. Max. memory is 5.3 GB. [2018-07-21 04:11:17,915 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 303.0 MB. Free memory is still 267.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 1380.95 ms. Allocated memory was 303.0 MB in the beginning and 328.2 MB in the end (delta: 25.2 MB). Free memory was 242.4 MB in the beginning and 231.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 70.8 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 227.73 ms. Allocated memory is still 328.2 MB. Free memory was 231.9 MB in the beginning and 193.3 MB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 766.99 ms. Allocated memory was 328.2 MB in the beginning and 572.0 MB in the end (delta: 243.8 MB). Free memory was 193.3 MB in the beginning and 501.2 MB in the end (delta: -307.9 MB). Peak memory consumption was 55.9 MB. Max. memory is 5.3 GB. * RCFGBuilder took 7096.18 ms. Allocated memory was 572.0 MB in the beginning and 578.3 MB in the end (delta: 6.3 MB). Free memory was 501.2 MB in the beginning and 378.8 MB in the end (delta: 122.5 MB). Peak memory consumption was 198.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 195759.69 ms. Allocated memory was 578.3 MB in the beginning and 2.7 GB in the end (delta: 2.1 GB). Free memory was 378.8 MB in the beginning and 243.7 MB in the end (delta: 135.1 MB). Peak memory consumption was 2.2 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 28]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 28). Cancelled while BasicCegarLoop was constructing difference of abstraction (4262states) and interpolant automaton (currently 4 states, 4 states before enhancement), while ReachableStatesComputation was computing reachable states (6883 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 195.6s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 162.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2308 SDtfs, 4187 SDslu, 1312 SDs, 0 SdLazy, 8824 SolverSat, 1836 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 119.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 245 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4262occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 21.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9960805228227009 AbsIntWeakeningRatio, 0.09345794392523364 AbsIntAvgWeakeningVarsNumRemoved, 30.80841121495327 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 383 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1020 NumberOfCodeBlocks, 1020 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1014 ConstructedInterpolants, 0 QuantifiedInterpolants, 380910 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 135/138 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem15_label09_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_04-11-17-936.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem15_label09_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_04-11-17-936.csv Completed graceful shutdown