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/Problem13_label40_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 19:31:01,047 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 19:31:01,049 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 19:31:01,062 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 19:31:01,062 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 19:31:01,063 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 19:31:01,065 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 19:31:01,067 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 19:31:01,068 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 19:31:01,069 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 19:31:01,070 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 19:31:01,070 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 19:31:01,072 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 19:31:01,073 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 19:31:01,074 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 19:31:01,075 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 19:31:01,076 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 19:31:01,080 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 19:31:01,087 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 19:31:01,089 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 19:31:01,090 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 19:31:01,091 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 19:31:01,094 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 19:31:01,094 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 19:31:01,095 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 19:31:01,096 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 19:31:01,097 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 19:31:01,098 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 19:31:01,098 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 19:31:01,100 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 19:31:01,100 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 19:31:01,101 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 19:31:01,101 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 19:31:01,101 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 19:31:01,102 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 19:31:01,103 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 19:31:01,103 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 19:31:01,124 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 19:31:01,124 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 19:31:01,125 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 19:31:01,125 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 19:31:01,125 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 19:31:01,126 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 19:31:01,126 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 19:31:01,126 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 19:31:01,126 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 19:31:01,127 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 19:31:01,127 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 19:31:01,128 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 19:31:01,128 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 19:31:01,129 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 19:31:01,129 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 19:31:01,129 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 19:31:01,129 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 19:31:01,130 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 19:31:01,130 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 19:31:01,130 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 19:31:01,130 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 19:31:01,130 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 19:31:01,131 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 19:31:01,131 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 19:31:01,131 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 19:31:01,132 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 19:31:01,133 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 19:31:01,133 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 19:31:01,133 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 19:31:01,133 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 19:31:01,134 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 19:31:01,134 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 19:31:01,134 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 19:31:01,188 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 19:31:01,203 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 19:31:01,207 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 19:31:01,209 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 19:31:01,210 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 19:31:01,210 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label40_false-unreach-call.c [2018-07-23 19:31:01,576 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e86eb0889/bc6004f6b5b64818a8d220d5aa63d170/FLAG6fb9d57c4 [2018-07-23 19:31:02,121 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 19:31:02,122 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label40_false-unreach-call.c [2018-07-23 19:31:02,164 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e86eb0889/bc6004f6b5b64818a8d220d5aa63d170/FLAG6fb9d57c4 [2018-07-23 19:31:02,182 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e86eb0889/bc6004f6b5b64818a8d220d5aa63d170 [2018-07-23 19:31:02,195 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 19:31:02,197 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 19:31:02,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 19:31:02,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 19:31:02,206 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 19:31:02,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:31:02" (1/1) ... [2018-07-23 19:31:02,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49276014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:02, skipping insertion in model container [2018-07-23 19:31:02,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 07:31:02" (1/1) ... [2018-07-23 19:31:02,633 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 19:31:03,869 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:31:03,888 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 19:31:04,720 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 19:31:05,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:05 WrapperNode [2018-07-23 19:31:05,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 19:31:05,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 19:31:05,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 19:31:05,057 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 19:31:05,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:05" (1/1) ... [2018-07-23 19:31:05,197 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:05" (1/1) ... [2018-07-23 19:31:05,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 19:31:05,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 19:31:05,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 19:31:05,402 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 19:31:05,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:05" (1/1) ... [2018-07-23 19:31:05,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:05" (1/1) ... [2018-07-23 19:31:05,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:05" (1/1) ... [2018-07-23 19:31:05,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:05" (1/1) ... [2018-07-23 19:31:06,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:05" (1/1) ... [2018-07-23 19:31:06,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:05" (1/1) ... [2018-07-23 19:31:06,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:05" (1/1) ... [2018-07-23 19:31:06,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 19:31:06,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 19:31:06,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 19:31:06,798 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 19:31:06,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 19:31:06,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 19:31:06,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 19:31:06,863 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-23 19:31:06,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-23 19:31:06,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 19:31:06,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 19:31:06,864 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 19:31:06,864 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 19:31:06,864 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-23 19:31:06,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-23 19:31:06,864 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-23 19:31:06,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-23 19:31:06,865 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-23 19:31:06,865 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-23 19:31:24,330 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 19:31:24,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:31:24 BoogieIcfgContainer [2018-07-23 19:31:24,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 19:31:24,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 19:31:24,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 19:31:24,336 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 19:31:24,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 07:31:02" (1/3) ... [2018-07-23 19:31:24,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518dd7ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:31:24, skipping insertion in model container [2018-07-23 19:31:24,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 07:31:05" (2/3) ... [2018-07-23 19:31:24,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518dd7ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 07:31:24, skipping insertion in model container [2018-07-23 19:31:24,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 07:31:24" (3/3) ... [2018-07-23 19:31:24,340 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label40_false-unreach-call.c [2018-07-23 19:31:24,349 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 19:31:24,358 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 19:31:24,419 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 19:31:24,420 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 19:31:24,420 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 19:31:24,420 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 19:31:24,420 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 19:31:24,420 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 19:31:24,420 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 19:31:24,421 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 19:31:24,421 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 19:31:24,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-07-23 19:31:24,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-07-23 19:31:24,485 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:31:24,486 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] [2018-07-23 19:31:24,487 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:31:24,492 INFO L82 PathProgramCache]: Analyzing trace with hash -832376069, now seen corresponding path program 1 times [2018-07-23 19:31:24,494 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:31:24,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:31:24,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:31:24,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:31:24,545 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:31:24,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:31:24,946 WARN L169 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 19:31:25,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:31:25,046 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:31:25,046 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 19:31:25,046 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:31:25,053 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 19:31:25,069 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 19:31:25,070 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 19:31:25,072 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-07-23 19:31:35,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:31:35,169 INFO L93 Difference]: Finished difference Result 3097 states and 5707 transitions. [2018-07-23 19:31:35,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 19:31:35,170 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2018-07-23 19:31:35,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:31:35,211 INFO L225 Difference]: With dead ends: 3097 [2018-07-23 19:31:35,212 INFO L226 Difference]: Without dead ends: 1975 [2018-07-23 19:31:35,225 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 19:31:35,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2018-07-23 19:31:35,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1974. [2018-07-23 19:31:35,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1974 states. [2018-07-23 19:31:35,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 3284 transitions. [2018-07-23 19:31:35,422 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 3284 transitions. Word has length 35 [2018-07-23 19:31:35,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:31:35,423 INFO L471 AbstractCegarLoop]: Abstraction has 1974 states and 3284 transitions. [2018-07-23 19:31:35,423 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 19:31:35,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 3284 transitions. [2018-07-23 19:31:35,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-07-23 19:31:35,435 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:31:35,435 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:31:35,435 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:31:35,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1761727722, now seen corresponding path program 1 times [2018-07-23 19:31:35,436 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:31:35,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:31:35,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:31:35,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:31:35,437 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:31:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:31:35,762 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:31:35,762 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:31:35,763 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 19:31:35,763 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:31:35,765 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 19:31:35,765 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 19:31:35,765 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 19:31:35,766 INFO L87 Difference]: Start difference. First operand 1974 states and 3284 transitions. Second operand 5 states. [2018-07-23 19:31:57,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:31:57,883 INFO L93 Difference]: Finished difference Result 5737 states and 9691 transitions. [2018-07-23 19:31:57,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 19:31:57,891 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2018-07-23 19:31:57,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:31:57,921 INFO L225 Difference]: With dead ends: 5737 [2018-07-23 19:31:57,921 INFO L226 Difference]: Without dead ends: 3769 [2018-07-23 19:31:57,929 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-23 19:31:57,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3769 states. [2018-07-23 19:31:58,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3769 to 3685. [2018-07-23 19:31:58,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3685 states. [2018-07-23 19:31:58,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3685 states to 3685 states and 5659 transitions. [2018-07-23 19:31:58,058 INFO L78 Accepts]: Start accepts. Automaton has 3685 states and 5659 transitions. Word has length 111 [2018-07-23 19:31:58,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:31:58,058 INFO L471 AbstractCegarLoop]: Abstraction has 3685 states and 5659 transitions. [2018-07-23 19:31:58,059 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 19:31:58,059 INFO L276 IsEmpty]: Start isEmpty. Operand 3685 states and 5659 transitions. [2018-07-23 19:31:58,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-07-23 19:31:58,063 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:31:58,063 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:31:58,063 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:31:58,064 INFO L82 PathProgramCache]: Analyzing trace with hash -2119275194, now seen corresponding path program 1 times [2018-07-23 19:31:58,064 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:31:58,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:31:58,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:31:58,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:31:58,065 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:31:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:31:58,321 WARN L169 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 19:31:58,505 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:31:58,506 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:31:58,506 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 19:31:58,506 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:31:58,507 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 19:31:58,507 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 19:31:58,507 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 19:31:58,508 INFO L87 Difference]: Start difference. First operand 3685 states and 5659 transitions. Second operand 6 states. [2018-07-23 19:32:08,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:32:08,406 INFO L93 Difference]: Finished difference Result 10870 states and 17247 transitions. [2018-07-23 19:32:08,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:32:08,407 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-07-23 19:32:08,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:32:08,453 INFO L225 Difference]: With dead ends: 10870 [2018-07-23 19:32:08,454 INFO L226 Difference]: Without dead ends: 7191 [2018-07-23 19:32:08,468 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 19:32:08,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7191 states. [2018-07-23 19:32:08,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7191 to 7142. [2018-07-23 19:32:08,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7142 states. [2018-07-23 19:32:08,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7142 states to 7142 states and 10338 transitions. [2018-07-23 19:32:08,683 INFO L78 Accepts]: Start accepts. Automaton has 7142 states and 10338 transitions. Word has length 125 [2018-07-23 19:32:08,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:32:08,684 INFO L471 AbstractCegarLoop]: Abstraction has 7142 states and 10338 transitions. [2018-07-23 19:32:08,684 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 19:32:08,684 INFO L276 IsEmpty]: Start isEmpty. Operand 7142 states and 10338 transitions. [2018-07-23 19:32:08,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-07-23 19:32:08,692 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:32:08,692 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:32:08,692 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:32:08,693 INFO L82 PathProgramCache]: Analyzing trace with hash -358112410, now seen corresponding path program 1 times [2018-07-23 19:32:08,693 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:32:08,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:32:08,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:32:08,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:32:08,701 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:32:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:32:09,045 WARN L169 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 19:32:09,182 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:32:09,182 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:32:09,182 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 19:32:09,182 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:32:09,183 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 19:32:09,183 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 19:32:09,183 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 19:32:09,184 INFO L87 Difference]: Start difference. First operand 7142 states and 10338 transitions. Second operand 6 states. [2018-07-23 19:32:22,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:32:22,473 INFO L93 Difference]: Finished difference Result 24010 states and 36803 transitions. [2018-07-23 19:32:22,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 19:32:22,477 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2018-07-23 19:32:22,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:32:22,574 INFO L225 Difference]: With dead ends: 24010 [2018-07-23 19:32:22,574 INFO L226 Difference]: Without dead ends: 16874 [2018-07-23 19:32:22,618 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 19:32:22,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16874 states. [2018-07-23 19:32:23,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16874 to 16667. [2018-07-23 19:32:23,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16667 states. [2018-07-23 19:32:23,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16667 states to 16667 states and 23881 transitions. [2018-07-23 19:32:23,081 INFO L78 Accepts]: Start accepts. Automaton has 16667 states and 23881 transitions. Word has length 141 [2018-07-23 19:32:23,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:32:23,082 INFO L471 AbstractCegarLoop]: Abstraction has 16667 states and 23881 transitions. [2018-07-23 19:32:23,082 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 19:32:23,082 INFO L276 IsEmpty]: Start isEmpty. Operand 16667 states and 23881 transitions. [2018-07-23 19:32:23,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-23 19:32:23,085 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:32:23,085 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:32:23,085 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:32:23,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1574238762, now seen corresponding path program 1 times [2018-07-23 19:32:23,086 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:32:23,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:32:23,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:32:23,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:32:23,087 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:32:23,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:32:23,389 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:32:23,389 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 19:32:23,389 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 19:32:23,390 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:32:23,390 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 19:32:23,391 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 19:32:23,391 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 19:32:23,391 INFO L87 Difference]: Start difference. First operand 16667 states and 23881 transitions. Second operand 5 states. [2018-07-23 19:32:52,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 19:32:52,182 INFO L93 Difference]: Finished difference Result 55144 states and 84082 transitions. [2018-07-23 19:32:52,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 19:32:52,183 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2018-07-23 19:32:52,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 19:32:52,357 INFO L225 Difference]: With dead ends: 55144 [2018-07-23 19:32:52,358 INFO L226 Difference]: Without dead ends: 38483 [2018-07-23 19:32:52,421 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-23 19:32:52,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38483 states. [2018-07-23 19:32:53,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38483 to 38225. [2018-07-23 19:32:53,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38225 states. [2018-07-23 19:32:53,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38225 states to 38225 states and 55894 transitions. [2018-07-23 19:32:53,421 INFO L78 Accepts]: Start accepts. Automaton has 38225 states and 55894 transitions. Word has length 143 [2018-07-23 19:32:53,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 19:32:53,422 INFO L471 AbstractCegarLoop]: Abstraction has 38225 states and 55894 transitions. [2018-07-23 19:32:53,422 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 19:32:53,422 INFO L276 IsEmpty]: Start isEmpty. Operand 38225 states and 55894 transitions. [2018-07-23 19:32:53,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-07-23 19:32:53,425 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 19:32:53,426 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 19:32:53,426 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 19:32:53,426 INFO L82 PathProgramCache]: Analyzing trace with hash -339359558, now seen corresponding path program 1 times [2018-07-23 19:32:53,426 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 19:32:53,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:32:53,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 19:32:53,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 19:32:53,428 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 19:32:53,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 19:32:54,058 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 19:32:54,059 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 19:32:54,059 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 19:32:54,060 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 152 with the following transitions: [2018-07-23 19:32:54,062 INFO L201 CegarAbsIntRunner]: [0], [1], [303], [307], [313], [317], [319], [2652], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2831], [2833], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3124], [3132], [3140], [3145], [3149], [3153], [3157], [3161], [3172], [3176], [3180], [3184], [3188], [3192], [3203], [3207], [3211], [3215], [3219], [3223], [3227], [3231], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3298], [3302], [3306], [3310], [3314], [3318], [3329], [3333], [3337], [3341], [3345], [3349], [3353], [3356], [4262], [4263], [4264], [4265], [4267], [4268] [2018-07-23 19:32:54,150 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 19:32:54,151 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 19:33:06,988 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 19:33:06,990 INFO L272 AbstractInterpreter]: Visited 120 different actions 120 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-07-23 19:33:07,002 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 19:33:12,526 INFO L232 lantSequenceWeakener]: Weakened 146 states. On average, predicates are now at 71.25% of their original sizes. [2018-07-23 19:33:12,526 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 19:33:13,235 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 19:33:13,236 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 19:33:13,237 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2018-07-23 19:33:13,237 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 19:33:13,237 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 19:33:13,238 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 19:33:13,238 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-23 19:33:13,238 INFO L87 Difference]: Start difference. First operand 38225 states and 55894 transitions. Second operand 8 states. [2018-07-23 19:33:51,585 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-23 19:34:41,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 19:34:41,497 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 19:34:41,502 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 19:34:41,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 07:34:41 BoogieIcfgContainer [2018-07-23 19:34:41,503 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 19:34:41,504 INFO L168 Benchmark]: Toolchain (without parser) took 219308.06 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-07-23 19:34:41,505 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 19:34:41,506 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2858.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. [2018-07-23 19:34:41,507 INFO L168 Benchmark]: Boogie Procedure Inliner took 344.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-23 19:34:41,512 INFO L168 Benchmark]: Boogie Preprocessor took 1396.33 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 201.9 MB. Max. memory is 7.1 GB. [2018-07-23 19:34:41,513 INFO L168 Benchmark]: RCFGBuilder took 17533.35 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 160.4 MB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 65.3 MB). Peak memory consumption was 777.1 MB. Max. memory is 7.1 GB. [2018-07-23 19:34:41,514 INFO L168 Benchmark]: TraceAbstraction took 197170.47 ms. Allocated memory was 2.7 GB in the beginning and 4.2 GB in the end (delta: 1.5 GB). Free memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: -178.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-07-23 19:34:41,525 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2858.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 344.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1396.33 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 201.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17533.35 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 160.4 MB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 65.3 MB). Peak memory consumption was 777.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 197170.47 ms. Allocated memory was 2.7 GB in the beginning and 4.2 GB in the end (delta: 1.5 GB). Free memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: -178.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 96). Cancelled while BasicCegarLoop was constructing difference of abstraction (38225states) and interpolant automaton (currently 8 states, 8 states before enhancement), while ReachableStatesComputation was computing reachable states (8920 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 197.0s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 173.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2658 SDtfs, 16959 SDslu, 2921 SDs, 0 SdLazy, 29389 SolverSat, 6463 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 140.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 196 GetRequests, 157 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38225occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 12.9s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9945846153846153 AbsIntWeakeningRatio, 0.14 AbsIntAvgWeakeningVarsNumRemoved, 1017.52 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 5 MinimizatonAttempts, 599 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 706 NumberOfCodeBlocks, 706 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 700 ConstructedInterpolants, 0 QuantifiedInterpolants, 325460 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 116/140 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/Problem13_label40_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_19-34-41-545.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label40_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_19-34-41-545.csv Completed graceful shutdown