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/Problem03_label07_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 20:31:41,092 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 20:31:41,097 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 20:31:41,110 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 20:31:41,110 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 20:31:41,111 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 20:31:41,112 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 20:31:41,114 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 20:31:41,116 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 20:31:41,117 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 20:31:41,118 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 20:31:41,118 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 20:31:41,119 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 20:31:41,120 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 20:31:41,121 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 20:31:41,122 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 20:31:41,122 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 20:31:41,124 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 20:31:41,126 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 20:31:41,128 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 20:31:41,129 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 20:31:41,130 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 20:31:41,133 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 20:31:41,133 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 20:31:41,133 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 20:31:41,134 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 20:31:41,135 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 20:31:41,136 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 20:31:41,137 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 20:31:41,138 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 20:31:41,138 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 20:31:41,139 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-23 20:31:41,142 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 20:31:41,166 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 20:31:41,167 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 20:31:41,167 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 20:31:41,168 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 20:31:41,168 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 20:31:41,168 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 20:31:41,169 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 20:31:41,169 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 20:31:41,169 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 20:31:41,170 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 20:31:41,170 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 20:31:41,170 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 20:31:41,171 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 20:31:41,171 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 20:31:41,171 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 20:31:41,172 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 20:31:41,172 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 20:31:41,172 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 20:31:41,172 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 20:31:41,173 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 20:31:41,173 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 20:31:41,173 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 20:31:41,173 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 20:31:41,174 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 20:31:41,174 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 20:31:41,174 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 20:31:41,175 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 20:31:41,175 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 20:31:41,175 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 20:31:41,175 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 20:31:41,175 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 20:31:41,176 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 20:31:41,176 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 20:31:41,228 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 20:31:41,241 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 20:31:41,245 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 20:31:41,247 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 20:31:41,247 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 20:31:41,248 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label07_true-unreach-call.c [2018-07-23 20:31:41,651 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e34edb213/371fc3fc2f994ec2838c5acca58ccd07/FLAGed4892553 [2018-07-23 20:31:42,046 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 20:31:42,047 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label07_true-unreach-call.c [2018-07-23 20:31:42,077 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e34edb213/371fc3fc2f994ec2838c5acca58ccd07/FLAGed4892553 [2018-07-23 20:31:42,100 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e34edb213/371fc3fc2f994ec2838c5acca58ccd07 [2018-07-23 20:31:42,115 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 20:31:42,117 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 20:31:42,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 20:31:42,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 20:31:42,130 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 20:31:42,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 08:31:42" (1/1) ... [2018-07-23 20:31:42,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47db165b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:31:42, skipping insertion in model container [2018-07-23 20:31:42,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 08:31:42" (1/1) ... [2018-07-23 20:31:42,393 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 20:31:42,910 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 20:31:42,929 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 20:31:43,251 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 20:31:43,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:31:43 WrapperNode [2018-07-23 20:31:43,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 20:31:43,332 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 20:31:43,332 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 20:31:43,332 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 20:31:43,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:31:43" (1/1) ... [2018-07-23 20:31:43,398 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:31:43" (1/1) ... [2018-07-23 20:31:43,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 20:31:43,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 20:31:43,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 20:31:43,521 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 20:31:43,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:31:43" (1/1) ... [2018-07-23 20:31:43,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:31:43" (1/1) ... [2018-07-23 20:31:43,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:31:43" (1/1) ... [2018-07-23 20:31:43,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:31:43" (1/1) ... [2018-07-23 20:31:43,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:31:43" (1/1) ... [2018-07-23 20:31:43,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:31:43" (1/1) ... [2018-07-23 20:31:43,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:31:43" (1/1) ... [2018-07-23 20:31:43,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 20:31:43,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 20:31:43,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 20:31:43,924 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 20:31:43,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:31:43" (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 20:31:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 20:31:43,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 20:31:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-23 20:31:43,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-23 20:31:43,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 20:31:43,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 20:31:43,996 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 20:31:43,997 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 20:31:49,177 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 20:31:49,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 08:31:49 BoogieIcfgContainer [2018-07-23 20:31:49,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 20:31:49,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 20:31:49,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 20:31:49,184 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 20:31:49,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 08:31:42" (1/3) ... [2018-07-23 20:31:49,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f3c50e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 08:31:49, skipping insertion in model container [2018-07-23 20:31:49,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:31:43" (2/3) ... [2018-07-23 20:31:49,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f3c50e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 08:31:49, skipping insertion in model container [2018-07-23 20:31:49,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 08:31:49" (3/3) ... [2018-07-23 20:31:49,192 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label07_true-unreach-call.c [2018-07-23 20:31:49,213 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 20:31:49,227 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 20:31:49,306 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 20:31:49,307 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 20:31:49,307 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 20:31:49,307 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 20:31:49,307 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 20:31:49,308 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 20:31:49,308 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 20:31:49,308 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 20:31:49,308 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 20:31:49,358 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-07-23 20:31:49,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-07-23 20:31:49,394 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:31:49,395 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:31:49,396 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:31:49,402 INFO L82 PathProgramCache]: Analyzing trace with hash -98541652, now seen corresponding path program 1 times [2018-07-23 20:31:49,406 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:31:49,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:31:49,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:31:49,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:31:49,470 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:31:49,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:31:50,699 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 20:31:50,702 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:31:50,702 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 20:31:50,703 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:31:50,709 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 20:31:50,726 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 20:31:50,727 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 20:31:50,730 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-07-23 20:31:54,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:31:54,262 INFO L93 Difference]: Finished difference Result 1054 states and 1900 transitions. [2018-07-23 20:31:54,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 20:31:54,266 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 179 [2018-07-23 20:31:54,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:31:54,293 INFO L225 Difference]: With dead ends: 1054 [2018-07-23 20:31:54,294 INFO L226 Difference]: Without dead ends: 736 [2018-07-23 20:31:54,302 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 20:31:54,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2018-07-23 20:31:54,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 526. [2018-07-23 20:31:54,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2018-07-23 20:31:54,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 886 transitions. [2018-07-23 20:31:54,395 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 886 transitions. Word has length 179 [2018-07-23 20:31:54,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:31:54,397 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 886 transitions. [2018-07-23 20:31:54,397 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 20:31:54,397 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 886 transitions. [2018-07-23 20:31:54,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-07-23 20:31:54,404 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:31:54,405 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:31:54,405 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:31:54,406 INFO L82 PathProgramCache]: Analyzing trace with hash -2053173019, now seen corresponding path program 1 times [2018-07-23 20:31:54,406 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:31:54,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:31:54,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:31:54,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:31:54,408 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:31:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:31:54,765 WARN L169 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 20:31:54,925 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 20:31:54,926 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:31:54,926 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 20:31:54,926 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:31:54,928 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 20:31:54,928 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 20:31:54,929 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 20:31:54,929 INFO L87 Difference]: Start difference. First operand 526 states and 886 transitions. Second operand 6 states. [2018-07-23 20:31:57,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:31:57,840 INFO L93 Difference]: Finished difference Result 1492 states and 2599 transitions. [2018-07-23 20:31:57,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 20:31:57,841 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 189 [2018-07-23 20:31:57,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:31:57,850 INFO L225 Difference]: With dead ends: 1492 [2018-07-23 20:31:57,850 INFO L226 Difference]: Without dead ends: 972 [2018-07-23 20:31:57,855 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 20:31:57,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2018-07-23 20:31:57,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 951. [2018-07-23 20:31:57,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 951 states. [2018-07-23 20:31:57,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1526 transitions. [2018-07-23 20:31:57,917 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1526 transitions. Word has length 189 [2018-07-23 20:31:57,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:31:57,918 INFO L471 AbstractCegarLoop]: Abstraction has 951 states and 1526 transitions. [2018-07-23 20:31:57,918 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 20:31:57,918 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1526 transitions. [2018-07-23 20:31:57,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-07-23 20:31:57,923 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:31:57,924 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:31:57,924 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:31:57,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1275531176, now seen corresponding path program 1 times [2018-07-23 20:31:57,924 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:31:57,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:31:57,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:31:57,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:31:57,926 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:31:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:31:58,285 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:31:58,286 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:31:58,286 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 20:31:58,289 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:31:58,290 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 20:31:58,290 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 20:31:58,290 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 20:31:58,291 INFO L87 Difference]: Start difference. First operand 951 states and 1526 transitions. Second operand 3 states. [2018-07-23 20:32:01,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:32:01,223 INFO L93 Difference]: Finished difference Result 2745 states and 4537 transitions. [2018-07-23 20:32:01,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 20:32:01,229 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2018-07-23 20:32:01,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:32:01,244 INFO L225 Difference]: With dead ends: 2745 [2018-07-23 20:32:01,244 INFO L226 Difference]: Without dead ends: 1800 [2018-07-23 20:32:01,257 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 20:32:01,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2018-07-23 20:32:01,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1798. [2018-07-23 20:32:01,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1798 states. [2018-07-23 20:32:01,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 2775 transitions. [2018-07-23 20:32:01,332 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 2775 transitions. Word has length 192 [2018-07-23 20:32:01,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:32:01,333 INFO L471 AbstractCegarLoop]: Abstraction has 1798 states and 2775 transitions. [2018-07-23 20:32:01,333 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 20:32:01,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 2775 transitions. [2018-07-23 20:32:01,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-07-23 20:32:01,341 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:32:01,341 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:32:01,341 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:32:01,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1930842229, now seen corresponding path program 1 times [2018-07-23 20:32:01,342 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:32:01,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:32:01,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:32:01,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:32:01,343 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:32:01,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:32:01,548 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 4 [2018-07-23 20:32:01,742 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:32:01,743 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:32:01,743 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-23 20:32:01,743 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:32:01,744 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 20:32:01,744 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 20:32:01,745 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-23 20:32:01,745 INFO L87 Difference]: Start difference. First operand 1798 states and 2775 transitions. Second operand 7 states. [2018-07-23 20:32:05,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:32:05,574 INFO L93 Difference]: Finished difference Result 5591 states and 9817 transitions. [2018-07-23 20:32:05,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-23 20:32:05,575 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 197 [2018-07-23 20:32:05,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:32:05,616 INFO L225 Difference]: With dead ends: 5591 [2018-07-23 20:32:05,616 INFO L226 Difference]: Without dead ends: 3799 [2018-07-23 20:32:05,628 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-07-23 20:32:05,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3799 states. [2018-07-23 20:32:05,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3799 to 3621. [2018-07-23 20:32:05,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3621 states. [2018-07-23 20:32:05,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 5701 transitions. [2018-07-23 20:32:05,795 INFO L78 Accepts]: Start accepts. Automaton has 3621 states and 5701 transitions. Word has length 197 [2018-07-23 20:32:05,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:32:05,796 INFO L471 AbstractCegarLoop]: Abstraction has 3621 states and 5701 transitions. [2018-07-23 20:32:05,796 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 20:32:05,796 INFO L276 IsEmpty]: Start isEmpty. Operand 3621 states and 5701 transitions. [2018-07-23 20:32:05,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-07-23 20:32:05,811 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:32:05,812 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:32:05,812 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:32:05,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1434769280, now seen corresponding path program 1 times [2018-07-23 20:32:05,812 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:32:05,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:32:05,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:32:05,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:32:05,814 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:32:05,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:32:06,093 WARN L169 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 20:32:06,479 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:32:06,480 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:32:06,480 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 20:32:06,480 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:32:06,481 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 20:32:06,482 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 20:32:06,482 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 20:32:06,482 INFO L87 Difference]: Start difference. First operand 3621 states and 5701 transitions. Second operand 6 states. [2018-07-23 20:32:08,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:32:08,938 INFO L93 Difference]: Finished difference Result 9454 states and 15492 transitions. [2018-07-23 20:32:08,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 20:32:08,938 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 204 [2018-07-23 20:32:08,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:32:08,977 INFO L225 Difference]: With dead ends: 9454 [2018-07-23 20:32:08,977 INFO L226 Difference]: Without dead ends: 5839 [2018-07-23 20:32:09,005 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 20:32:09,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5839 states. [2018-07-23 20:32:09,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5839 to 5751. [2018-07-23 20:32:09,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5751 states. [2018-07-23 20:32:09,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5751 states to 5751 states and 8277 transitions. [2018-07-23 20:32:09,182 INFO L78 Accepts]: Start accepts. Automaton has 5751 states and 8277 transitions. Word has length 204 [2018-07-23 20:32:09,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:32:09,183 INFO L471 AbstractCegarLoop]: Abstraction has 5751 states and 8277 transitions. [2018-07-23 20:32:09,183 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 20:32:09,183 INFO L276 IsEmpty]: Start isEmpty. Operand 5751 states and 8277 transitions. [2018-07-23 20:32:09,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-07-23 20:32:09,201 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:32:09,201 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:32:09,202 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:32:09,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1141340529, now seen corresponding path program 1 times [2018-07-23 20:32:09,202 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:32:09,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:32:09,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:32:09,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:32:09,204 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:32:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:32:09,694 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:32:09,695 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 20:32:09,695 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 20:32:09,696 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 211 with the following transitions: [2018-07-23 20:32:09,699 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [28], [29], [33], [37], [41], [45], [48], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [893], [895], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-07-23 20:32:09,798 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 20:32:09,799 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-07-23 20:36:13,643 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-23 20:36:13,644 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-23 20:36:13,646 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-23 20:36:13,646 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 20:36:13,646 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 20:36:13,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:36:13,656 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 20:36:13,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:36:13,943 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 20:36:13,993 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-23 20:36:14,195 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 20:36:14,196 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 20:36:14,202 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 20:36:14,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 08:36:14 BoogieIcfgContainer [2018-07-23 20:36:14,203 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 20:36:14,204 INFO L168 Benchmark]: Toolchain (without parser) took 272087.90 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 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 916.9 MB. Max. memory is 7.1 GB. [2018-07-23 20:36:14,205 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 20:36:14,206 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1212.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-07-23 20:36:14,210 INFO L168 Benchmark]: Boogie Procedure Inliner took 187.96 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 20:36:14,211 INFO L168 Benchmark]: Boogie Preprocessor took 403.37 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 759.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -892.5 MB). Peak memory consumption was 61.0 MB. Max. memory is 7.1 GB. [2018-07-23 20:36:14,212 INFO L168 Benchmark]: RCFGBuilder took 5254.59 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 279.0 MB). Peak memory consumption was 279.0 MB. Max. memory is 7.1 GB. [2018-07-23 20:36:14,214 INFO L168 Benchmark]: TraceAbstraction took 265023.57 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 3.1 GB in the end (delta: -1.2 GB). Peak memory consumption was 675.6 MB. Max. memory is 7.1 GB. [2018-07-23 20:36:14,222 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1212.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 187.96 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 403.37 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 759.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -892.5 MB). Peak memory consumption was 61.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5254.59 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 279.0 MB). Peak memory consumption was 279.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 265023.57 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 3.1 GB in the end (delta: -1.2 GB). Peak memory consumption was 675.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1551]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1551). Cancelled while BasicCegarLoop was analyzing trace of length 211 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 264.9s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 15.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1168 SDtfs, 4484 SDslu, 823 SDs, 0 SdLazy, 5956 SolverSat, 1140 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 13 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5751occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 243.9s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 499 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 961 NumberOfCodeBlocks, 961 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 956 ConstructedInterpolants, 0 QuantifiedInterpolants, 547396 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 52/52 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/Problem03_label07_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_20-36-14-245.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem03_label07_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_20-36-14-245.csv Completed graceful shutdown